This page displays last 20 Severe Weather Alerts issued by the National Weather Service
NOTE: Zoom in and out on each map using the "+" and "-" button located on each map.
2026-09-19 06:49:42
WGMY50 PGUM 191049
Flash Flood Warning
553
WGMY50 PGUM 191049
FFWGUM
GUC010-191145-
/O.NEW.PGUM.FF.W.0032.260919T1049Z-260919T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tiyan GU
849 PM ChST Sat Sep 19 2026
The National Weather Service in Tiyan has issued a
* Flash Flood Warning for...
Southwestern Guam...
* Until 945 PM ChST.
* At 849 PM ChST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen in a short amount of time. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Yona, Talofofo, Inarajan, Merizo, Santa Rita and Umatac.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 1335 14464 1337 14465 1334 14464 1342 14468
1338 14475 1327 14476 1325 14472 1328 14467
1329 14466 1330 14466 1329 14465 1333 14464
1331 14466 1335 14463
FLASH FLOOD...RADAR INDICATED
2026-09-19 05:21:58
WGUS53 KARX 190921
Flash Flood Warning
939
WGUS53 KARX 190921
FFWARX
IAC043-065-191315-
/O.NEW.KARX.FF.W.0016.260919T0921Z-260919T1315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
421 AM CDT Sat Sep 19 2026
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Clayton County in northeastern Iowa...
Fayette County in northeastern Iowa...
* Until 815 AM CDT.
* At 421 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
West Union, Guttenberg, Elkader, Postville, Monona, Fayette,
McGregor, Garnavillo, Elgin, Clermont, Maynard, Hawkeye, Arlington,
Marquette, Farmersburg, Waucoma, Volga, Luana and Wadena.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4274 9208 4308 9208 4308 9118 4296 9115
4291 9115 4288 9110 4283 9109 4283 9108
4277 9107 4276 9106 4275 9107 4273 9103
FLASH FLOOD...RADAR INDICATED
2026-09-19 05:19:27
WGUS53 KDVN 190919
Flash Flood Warning
290
WGUS53 KDVN 190919
FFWDVN
IAC061-097-ILC085-177-191515-
/O.NEW.KDVN.FF.W.0046.260919T0919Z-260919T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Quad Cities IA IL
419 AM CDT Sat Sep 19 2026
The National Weather Service in Quad Cities has issued a
* Flash Flood Warning for...
Northeastern Jackson County in east central Iowa...
Dubuque County in northeastern Iowa...
Jo Daviess County in northwestern Illinois...
Stephenson County in northwestern Illinois...
* Until 1015 AM CDT.
* At 419 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Dubuque, Freeport, Galena, Asbury, Dyersville, Lena, Bellevue,
Cascade, Stockton, Epworth, East Dubuque, Farley, Warren, Peosta,
Hanover, Pearl City, Elizabeth, Cedarville, Davis and Woodbine.
This includes the following State Parks...
Apple River Canyon State Park and Lake Le-Aqua-Na State Recreation
Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 4229 9087 4230 9090 4230 9113 4265 9113
4265 9090 4268 9090 4266 9084 4266 9080
4264 9073 4251 9064 4251 9031 4250 8940
4220 8940 4220 9030
FLASH FLOOD...RADAR INDICATED
2026-09-19 03:09:27
WGUS55 KGJT 190709
Flash Flood Warning
683
WGUS55 KGJT 190709
FFWGJT
COC033-190915-
/O.NEW.KGJT.FF.W.0126.260919T0709Z-260919T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Grand Junction CO
109 AM MDT Sat Sep 19 2026
The National Weather Service in Grand Junction has issued a
* Flash Flood Warning for...
The Ferris Burn Scar in...
Northwestern Dolores County in southwestern Colorado...
* Until 315 AM MDT.
* At 109 AM MDT, Doppler radar indicated thunderstorms producing
heavy rain over the Ferris Burn Scar. Between 0.2 and 0.5 inches of
rain have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Flash flooding is ongoing or expected to begin shortly.
Excessive rainfall over the burn scar will result in debris flow.
The debris flow can consist of rock, mud, vegetation and other
loose materials.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding in and around the Ferris Burn Scar.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of areas in and around the
Ferris Burn Scar.
* Some locations that will experience flash flooding include...
In and near the Ferris Burn Scar
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and ditches
in the Ferris Burn Scar. Severe debris flows can also be anticipated
across roads. Roads and driveways may be washed away in places. If
you encounter flood waters...climb to safety.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3787 10880 3781 10869 3777 10867 3776 10861
3774 10861 3774 10857 3780 10858 3780 10854
3775 10857 3765 10856 3764 10863 3764 10873
3766 10875 3768 10874 3769 10877 3770 10873
3776 10875 3780 10879 3779 10882 3781 10880
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
2026-09-19 02:17:53
WGUS53 KMKX 190617
Flash Flood Warning
274
WGUS53 KMKX 190617
FFWMKX
WIC025-190900-
/O.NEW.KMKX.FF.W.0022.260919T0617Z-260919T0900Z/
/00000.U.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Milwaukee/Sullivan WI
117 AM CDT Sat Sep 19 2026
The National Weather Service in Milwaukee/Sullivan has issued a
* Flash Flood Warning for...
Dane County in south central Wisconsin...
* Until 400 AM CDT.
* At 117 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2.5 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Madison, Sun Prairie, Fitchburg, Middleton, Stoughton, Waunakee,
Verona, Oregon, McFarland, Monona, Mount Horeb, Edgerton, Marshall,
Cottage Grove, Cross Plains, Belleville, Deerfield, Mazomanie,
Shorewood Hills and Cambridge.
This includes the following streams and drainages...
Story Creek, Sugar River, Maunesha River, Williams-barneveld Creek,
Murphy Creek, Bohn Creek, Ward Creek, Ross Crossing Creek, Badfish
Creek, Gordon Creek, Mount Vernon Creek, Rock River, Token Creek,
Elvers Creek, Mud Creek, Saunders Creek, Stony Brook, Allen Creek,
Little Door Creek, Swan Creek, Yahara River, Starkweather Creek,
Syftestad Creek, West Branch Sugar River, Koshkonong Creek, Murphys
Creek, Vermont Creek, Little Sugar River, Halfway Prairie Creek,
Primrose Branch, Rutland Branch, Nine Springs Creek, Deer Creek,
East Branch Pecatonica River, Badger Mill Creek, Spring Creek,
Pheasant Branch, West Branch Blue Mounds Creek and Black Earth
Creek.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4317 8984 4317 8901 4285 8901 4285 8937
4286 8937 4286 8984
FLASH FLOOD...RADAR INDICATED
2026-09-19 02:08:12
WGUS53 KMPX 190607
Flash Flood Warning
241
WGUS53 KMPX 190607
FFWMPX
MNC043-047-147-161-191000-
/O.NEW.KMPX.FF.W.0011.260919T0607Z-260919T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
107 AM CDT Sat Sep 19 2026
The National Weather Service in the Twin Cities has issued a
* Flash Flood Warning for...
Northeastern Faribault County in south central Minnesota...
Northern Freeborn County in south central Minnesota...
Southern Steele County in south central Minnesota...
Southern Waseca County in south central Minnesota...
* Until 500 AM CDT.
* At 107 AM CDT, local law enforcement reported thunderstorms
producing heavy rain in southern Waseca county along the MN Highway
30 corridor. Between 5 and 9 inches of rain have fallen. Additional
rainfall amounts up to 1 inch are possible in the warned area.
Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Law enforcement reported.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Blooming Prairie, New Richland, Ellendale, Geneva, Hartland, Otisco
and Matawan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4391 9377 4394 9357 4394 9346 4389 9305
4378 9305 4377 9312 4380 9340 4380 9377
FLASH FLOOD...OBSERVED
2026-09-19 01:22:12
WGUS53 KARX 190521
Flash Flood Warning
312
WGUS53 KARX 190521
FFWARX
WIC123-190915-
/O.NEW.KARX.FF.W.0015.260919T0521Z-260919T0915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
1221 AM CDT Sat Sep 19 2026
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Vernon County in southwestern Wisconsin...
* Until 415 AM CDT.
* At 1221 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Viroqua, Westby, Stoddard, Coon Valley, Springville, Viola,
Liberty, Readstown, De Soto, Chaseburg, Genoa, Ross, Bud, Sidie
Hollow County Park, County Roads B And Y, Runge Hollow, Esofea,
Highway 56 And County N, County Roads O And Y and Purdy.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4373 9083 4355 9064 4355 9067 4342 9067
4342 9120 4345 9123 4348 9122 4351 9122
4354 9124 4358 9123 4360 9126 4372 9126
FLASH FLOOD...RADAR INDICATED
2026-09-19 00:46:45
WGUS53 KARX 190446
Flash Flood Warning
026
WGUS53 KARX 190446
FFWARX
MNC045-190845-
/O.NEW.KARX.FF.W.0014.260919T0446Z-260919T0845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
1146 PM CDT Fri Sep 18 2026
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Southern Fillmore County in southeastern Minnesota...
* Until 345 AM CDT.
* At 1146 PM CDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 3.5 inches of rain have fallen. Additional rainfall amounts
of 1 to 3 inches are possible in the warned area. Flash flooding is
ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Preston, Spring Valley, Harmony, Mabel, Canton, Highland, Cherry
Grove, Bristol, Newburg, Amherst, York, Carimona, Ostrander,
Hutton, Granger, Forestville State Park, Greenleafton and
Henrytown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4370 9245 4370 9173 4350 9173 4350 9245
FLASH FLOOD...RADAR AND GAUGE INDICATED
2026-09-18 23:59:59
WGUS53 KMPX 190359
Flash Flood Warning
547
WGUS53 KMPX 190359
FFWMPX
MNC013-043-047-147-161-190600-
/O.NEW.KMPX.FF.W.0010.260919T0359Z-260919T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
1059 PM CDT Fri Sep 18 2026
The National Weather Service in the Twin Cities has issued a
* Flash Flood Warning for...
Southeastern Blue Earth County in south central Minnesota...
Northeastern Faribault County in south central Minnesota...
Northwestern Freeborn County in south central Minnesota...
Southwestern Steele County in south central Minnesota...
Southern Waseca County in south central Minnesota...
* Until 100 AM CDT.
* At 1059 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 5 inches of rain
have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour.
Additional rainfall amounts of 0.5 to 2 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
New Richland, Ellendale, Minnesota Lake, Geneva, Hartland and
Matawan.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4385 9406 4391 9355 4388 9319 4378 9325
4380 9365 4379 9404
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
2026-09-18 23:59:59
WGUS53 KARX 190359
Flash Flood Warning
552
WGUS53 KARX 190359
FFWARX
MNC055-190800-
/O.NEW.KARX.FF.W.0013.260919T0359Z-260919T0800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
1059 PM CDT Fri Sep 18 2026
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Houston County in southeastern Minnesota...
* Until 300 AM CDT.
* At 1059 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Caledonia, Houston, Hokah, Brownsville, Mound Prairie, Money Creek,
Reno, Yucatan, Sheldon, Black Hammer, Highway 44 And Sanden Road,
Beaver Creek Valley State Park, Dun Romin Park Campground, County
14 And White Tail Road, Freeburg, County Roads 3 And 24, Perkins
and County Roads 15 And 4.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4382 9146 4379 9126 4376 9125 4371 9127
4365 9127 4364 9126 4362 9127 4358 9123
4357 9123 4355 9124 4351 9123 4361 9173
4385 9173
FLASH FLOOD...RADAR INDICATED
2026-09-18 23:12:35
WGUS55 KCYS 190312
Flash Flood Warning
371
WGUS55 KCYS 190312
FFWCYS
NEC045-165-190515-
/O.NEW.KCYS.FF.W.0028.260919T0312Z-260919T0515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Cheyenne WY
912 PM MDT Fri Sep 18 2026
The National Weather Service in Cheyenne has issued a
* Flash Flood Warning for...
The South Fork Burn Scar in...
Western Dawes County in the panhandle of Nebraska...
East Central Sioux County in the panhandle of Nebraska...
* Until 1115 PM MDT.
* At 912 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain over the South Fork Burn Scar. Between 0.5 and 1 inch of
rain has fallen. Additional rainfall amounts up to 1.5 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly. Excessive rainfall over the burn scar will result
in debris flow moving through the Soldier Creek and the White River
drainages. The debris flow can consist of rock, mud, vegetation and
other loose materials.
HAZARD...Flash flooding caused by thunderstorms in and around the
South Fork Burn Scar.
SOURCE...Radar indicated.
IMPACT...Flooding of areas in and around the South Fork Burn Scar.
* Some locations that will experience flash flooding include...
Crawford, Fort Robinson State Park and Soldier Creek Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a life threatening situation. Heavy rainfall will cause
extensive and severe flash flooding of creeks...streams...and ditches
in the South Fork Burn Scar. Severe debris flows can also be
anticipated across roads. Roads and driveways may be washed away in
places. If you encounter flood waters...climb to safety.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
&&
LAT...LON 4263 10348 4262 10354 4265 10363 4270 10369
4273 10366 4276 10357 4273 10343 4268 10339
4263 10346
FLASH FLOOD...RADAR INDICATED
2026-09-18 23:02:47
WGUS55 KABQ 190302
Flash Flood Warning
137
WGUS55 KABQ 190302
FFWABQ
NMC001-190600-
/O.NEW.KABQ.FF.W.0156.260919T0302Z-260919T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Albuquerque NM
902 PM MDT Fri Sep 18 2026
The National Weather Service in Albuquerque has issued a
* Flash Flood Warning for...
Bernalillo County in central New Mexico...
* Until midnight MDT.
* At 902 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to 0.75 inches of rain have
fallen. The expected rainfall rate is 1 inch in 1 hour. Additional
rainfall amounts up to 0.5 inches are possible in the warned area.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Eastern Albuquerque and Sandia Heights.
This includes the following highways...
Interstate 40 between Mile Markers 160 and 168. Interstate 25 between
Mile Markers 221 and 230.
This warning is primarily for the arroyos and diversion channels
within the affected area due to the expected increase in rapidly
flowing water. Please avoid arroyos, diversion channels and any other
areas that are flooded.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Arroyos, streams, and normally dry rivers can become raging killer
currents in a matter of minutes. Water in arroyos can travel many
miles and take hours to reach your location from upstream rain areas.
&&
LAT...LON 3520 10657 3521 10649 3503 10648 3502 10664
3508 10664 3513 10662 3515 10659
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1 INCH IN 1 HOUR
2026-09-18 22:22:36
WUUS55 KCYS 190222
Severe Thunderstorm Warning
182
WUUS55 KCYS 190222
SVRCYS
NEC045-165-190315-
/O.NEW.KCYS.SV.W.0347.260919T0222Z-260919T0315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
822 PM MDT Fri Sep 18 2026
The National Weather Service in Cheyenne has issued a
* Severe Thunderstorm Warning for...
Southwestern Dawes County in the Panhandle of Nebraska...
Central Sioux County in the Panhandle of Nebraska...
* Until 915 PM MDT.
* At 822 PM MDT, severe thunderstorms were located along a line
extending from near Harrison to 6 miles north of Agate Fossil Beds
National Monument to 20 miles southeast of Prairie Center, moving
east at 20 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Crawford, Harrison, Soldier Creek Campground, Agate Fossil Beds
National Monument, and Fort Robinson State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4244 10341 4244 10345 4236 10345 4228 10348
4230 10402 4253 10389 4272 10396 4286 10344
4257 10336
TIME...MOT...LOC 0222Z 255DEG 16KT 4268 10379 4250 10375 4233 10387
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
2026-09-18 22:02:21
WGUS53 KARX 190202
Flash Flood Warning
707
WGUS53 KARX 190202
FFWARX
MNC045-099-190600-
/O.NEW.KARX.FF.W.0012.260919T0202Z-260919T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
902 PM CDT Fri Sep 18 2026
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Northern Fillmore County in southeastern Minnesota...
Northern Mower County in southeastern Minnesota...
* Until 100 AM CDT.
* At 902 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1.5 and 2.5 inches of
rain have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Chatfield, Rushford, Grand Meadow, Lanesboro, Brownsdale, Wykoff,
Fountain, Lansing, Rushford Village, Washington, Racine, Mayville,
Dexter, Pilot Mound, Arendahl, Peterson, Waltham and Whalan.
This includes Interstate 90 in Minnesota between mile markers 193 and
204.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4370 9305 4385 9305 4385 9269 4383 9269
4383 9245 4385 9245 4385 9173 4370 9173
FLASH FLOOD...RADAR INDICATED
2026-09-18 21:59:05
WUUS52 KGSP 190158
Severe Thunderstorm Warning
606
WUUS52 KGSP 190158
SVRGSP
SCC001-047-190245-
/O.NEW.KGSP.SV.W.0348.260919T0158Z-260919T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
958 PM EDT Fri Sep 18 2026
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
Abbeville County in Upstate South Carolina...
Western Greenwood County in Upstate South Carolina...
* Until 1045 PM EDT.
* At 958 PM EDT, a severe thunderstorm was located 11 miles north of
Abbeville, or near Due West, moving south at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Abbeville, Ware Shoals, Calhoun Falls, Due West, Donalds,
Cokesbury, Hodges, Troy, Shoals Junction, and Promised Land.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
Please report damaging winds, hail, or flooding to the National
Weather Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, or by
posting on our Facebook page, or post it to X using hashtag nwsgsp.
Your message should describe the event and the specific location
where it occurred.
&&
LAT...LON 3406 8233 3406 8244 3408 8248 3407 8250
3407 8253 3402 8259 3403 8260 3407 8263
3430 8257 3428 8243 3441 8241 3441 8225
3440 8223 3438 8221 3398 8219 3402 8225
3397 8231
TIME...MOT...LOC 0158Z 007DEG 24KT 3435 8238
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
2026-09-18 21:56:50
WUUS55 KCYS 190156
Severe Thunderstorm Warning
489
WUUS55 KCYS 190156
SVRCYS
NEC007-157-165-WYC015-190245-
/O.NEW.KCYS.SV.W.0346.260919T0156Z-260919T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
756 PM MDT Fri Sep 18 2026
The National Weather Service in Cheyenne has issued a
* Severe Thunderstorm Warning for...
Scotts Bluff County in the Panhandle of Nebraska...
Northwestern Banner County in the Panhandle of Nebraska...
Southwestern Sioux County in the Panhandle of Nebraska...
Southeastern Goshen County in southeastern Wyoming...
* Until 845 PM MDT.
* At 756 PM MDT, severe thunderstorms were located along a line
extending from 12 miles northeast of Torrington Municipal Airport
to near Morrill to 8 miles east of Hawk Springs Reservoir, moving
east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Automated weather station.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Scottsbluff, Torrington, Gering, Mitchell, Terrytown, Morrill, La
Grange, Lyman, Henry, Wildcat Hills State Recreation Area, Lake
Minatare State Recreation Area, Lake Alice Number 2, Stegall,
Scotts Bluff County Fairground, Torrington Municipal Airport,
Scotts Bluff National Monument, Hubbard Hill, Scottsbluff Airport,
Lake Alice, and Wycross.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4164 10420 4197 10412 4229 10429 4233 10361
4195 10349 4160 10358
TIME...MOT...LOC 0156Z 268DEG 22KT 4222 10405 4193 10393 4171 10402
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
2026-09-18 21:42:22
WUUS55 KCYS 190142
Severe Thunderstorm Warning
161
WUUS55 KCYS 190142
SVRCYS
NEC165-190230-
/O.NEW.KCYS.SV.W.0345.260919T0142Z-260919T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cheyenne WY
742 PM MDT Fri Sep 18 2026
The National Weather Service in Cheyenne has issued a
* Severe Thunderstorm Warning for...
Northern Sioux County in the Panhandle of Nebraska...
* Until 830 PM MDT.
* At 741 PM MDT, a severe thunderstorm was located near Harrison, or
25 miles east of Lusk, moving northeast at 30 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Harrison and Fort Robinson State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4287 10366 4260 10351 4252 10399 4260 10406
4278 10405 4297 10389
TIME...MOT...LOC 0141Z 230DEG 25KT 4268 10397
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
2026-09-18 21:41:02
WGUS55 KBYZ 190140
Flash Flood Warning
936
WGUS55 KBYZ 190140
FFWBYZ
MTC037-097-190415-
/O.NEW.KBYZ.FF.W.0019.260919T0140Z-260919T0415Z/
/00000.U.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Billings MT
740 PM MDT Fri Sep 18 2026
The National Weather Service in Billings has issued a
* Flash Flood Warning for...
Southwestern Golden Valley County in central Montana...
Northeastern Sweet Grass County in south central Montana...
* Until 1015 PM MDT.
* At 740 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. The expected rainfall rate is 1 to 2 inches per hour.
Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, highways,
streets and underpasses as well as other poor drainage and
low-lying areas.
* Some locations that will experience flash flooding include...
Mainly rural areas of Southwestern Golden Valley and Northeastern
Sweet Grass Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles. Do not drive on or attempt to cross flooded
roads, find an alternate route. Roads and driveways may be damaged or
washed out in places.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4621 10968 4621 10965 4614 10965 4613 10952
4616 10940 4613 10942 4601 10943 4597 10943
4596 10951 4588 10951 4588 10955 4598 10974
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
2026-09-18 21:29:09
WUUS52 KGSP 190128
Severe Thunderstorm Warning
400
WUUS52 KGSP 190128
SVRGSP
SCC001-007-045-190230-
/O.NEW.KGSP.SV.W.0347.260919T0128Z-260919T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
928 PM EDT Fri Sep 18 2026
The National Weather Service in Greenville-Spartanburg has issued a
* Severe Thunderstorm Warning for...
South central Greenville County in Upstate South Carolina...
Eastern Anderson County in Upstate South Carolina...
North central Abbeville County in Upstate South Carolina...
* Until 1030 PM EDT.
* At 928 PM EDT, a severe thunderstorm was located 12 miles northeast
of Anderson, or near Williamston, moving south at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to trees and power lines.
* Locations impacted include...
Homeland Park, Belton, Williamston, Honea Path, West Pelzer, Starr,
Antreville, Broadway Lake, Anderson, and Lake Secession.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Please report damaging winds, hail, or flooding to the National
Weather Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, or by
posting on our Facebook page, or post it to X using hashtag nwsgsp.
Your message should describe the event and the specific location
where it occurred.
&&
LAT...LON 3470 8253 3465 8234 3426 8242 3435 8275
TIME...MOT...LOC 0128Z 017DEG 16KT 3462 8245
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
2026-09-18 20:56:36
WGUS54 KMAF 190056
Flash Flood Warning
054
WGUS54 KMAF 190056
FFWMAF
NMC015-190400-
/O.NEW.KMAF.FF.W.0187.260919T0056Z-260919T0400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Midland/Odessa TX
656 PM MDT Fri Sep 18 2026
The National Weather Service in Midland/Odessa has issued a
* Flash Flood Warning for...
Southwestern Eddy County in southeastern New Mexico...
* Until 1000 PM MDT.
* At 656 PM MDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2.5 and 3.5 inches of
rain have fallen. The expected rainfall rate is 1 to 2 inches in 1
hour. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Life threatening flash flooding. Thunderstorms producing
flash flooding.
SOURCE...Radar indicated.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
Lincoln National Forest and Queen.
This includes the following streams and drainages...
Dark Canyon and Last Chance Canyon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3224 10476 3231 10468 3231 10451 3222 10451
3214 10474
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR