505 WUUS53 KLOT 220210 SVRLOT ILC099-220245- /O.NEW.KLOT.SV.W.0265.260822T0210Z-260822T0245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Chicago/Romeoville 910 PM CDT Fri Aug 21 2026 The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... South central La Salle County in north central Illinois... * Until 945 PM CDT. * At 910 PM CDT, a severe thunderstorm was located near Wenona, or 13 miles southwest of Streator, moving southeast at 15 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Wenona, Rutland, and Dana. 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. && LAT...LON 4106 8905 4103 8900 4098 8893 4093 8893 4093 8905 TIME...MOT...LOC 0210Z 332DEG 13KT 4100 8904 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ DK 006 WUUS55 KCYS 220211 SVRCYS NEC007-033-105-123-220300- /O.NEW.KCYS.SV.W.0271.260822T0211Z-260822T0300Z/ BULLETIN - EAS ACTIVATION REQUESTED Severe Thunderstorm Warning National Weather Service Cheyenne WY 811 PM MDT Fri Aug 21 2026 The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Western Cheyenne County in the Panhandle of Nebraska... Northeastern Kimball County in the Panhandle of Nebraska... Southwestern Morrill County in the Panhandle of Nebraska... Southeastern Banner County in the Panhandle of Nebraska... * Until 900 PM MDT. * At 811 PM MDT, a severe thunderstorm was located 11 miles north of Potter, or 20 miles northeast of Kimball, moving south at 20 mph. THIS IS A DESTRUCTIVE STORM FOR WESTERN CHEYENNE COUNTY AND EASTERN KIMBALL COUNTY. HAZARD...Baseball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be severely injured. Expect shattered windows, extensive damage to roofs, siding, and vehicles. * Locations impacted include... Potter and Brownson. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a dangerous storm. Prepare immediately for large destructive hail capable of producing significant damage. People outside should move to shelter inside a strong building, and stay away from windows. This thunderstorm is capable of producing all types of severe weather including extremely large hail, destructive straight line winds and tornadoes. Move quickly to a safe shelter such as an interior room, a bathroom, closet or basement. && LAT...LON 4150 10344 4151 10319 4105 10297 4106 10350 TIME...MOT...LOC 0211Z 000DEG 18KT 4139 10332 THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...2.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Natoli 738 WUUS55 KPUB 220214 SVRPUB COC061-220300- /O.NEW.KPUB.SV.W.0279.260822T0214Z-260822T0300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Pueblo CO 814 PM MDT Fri Aug 21 2026 The National Weather Service in Pueblo has issued a * Severe Thunderstorm Warning for... Western Kiowa County in southeastern Colorado... * Until 900 PM MDT. * At 814 PM MDT, a severe thunderstorm was located over Haswell, or 39 miles northwest of Lamar, moving south at 15 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... Haswell and Blue Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3828 10293 3828 10331 3853 10321 3853 10317 3859 10317 3857 10296 TIME...MOT...LOC 0214Z 006DEG 15KT 3848 10312 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Moore 406 WUUS53 KDVN 220222 SVRDVN ILC073-220245- /O.NEW.KDVN.SV.W.0285.260822T0222Z-260822T0245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Quad Cities IA/IL 922 PM CDT Fri Aug 21 2026 The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for... Southeastern Henry County in northwestern Illinois... * Until 945 PM CDT. * At 922 PM CDT, a severe thunderstorm was located over Kewanee Municipal Airport, or near Kewanee, moving southeast at 35 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Kewanee, Galva, and Kewanee Municipal Airport. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a sturdy building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4123 8987 4115 8987 4115 9006 4119 9009 4130 8991 4126 8986 4123 8986 TIME...MOT...LOC 0222Z 302DEG 32KT 4119 8993 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.88 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ DC 295 WUUS55 KCYS 220226 SVRCYS NEC013-123-157-165-220315- /O.NEW.KCYS.SV.W.0272.260822T0226Z-260822T0315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Cheyenne WY 826 PM MDT Fri Aug 21 2026 The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Southwestern Box Butte County in the Panhandle of Nebraska... Northeastern Scotts Bluff County in the Panhandle of Nebraska... Northwestern Morrill County in the Panhandle of Nebraska... Southeastern Sioux County in the Panhandle of Nebraska... * Until 915 PM MDT. * At 825 PM MDT, a severe thunderstorm was located 10 miles north of Lake Alice, or 19 miles north of Scottsbluff, moving southeast at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Kilpatrick Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4206 10377 4223 10374 4225 10308 4195 10312 TIME...MOT...LOC 0225Z 293DEG 34KT 4215 10364 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Natoli 354 WUUS55 KCYS 220237 SVRCYS NEC033-105-220330- /O.NEW.KCYS.SV.W.0273.260822T0237Z-260822T0330Z/ BULLETIN - EAS ACTIVATION REQUESTED Severe Thunderstorm Warning National Weather Service Cheyenne WY 837 PM MDT Fri Aug 21 2026 The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Southwestern Cheyenne County in the Panhandle of Nebraska... Southeastern Kimball County in the Panhandle of Nebraska... * Until 930 PM MDT. * At 837 PM MDT, a severe thunderstorm was located over Potter, or 18 miles west of Sidney, moving south at 20 mph. HAZARD...Tennis ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Potter, Dix, and Lorenzo. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. This storm is producing large hail. SEEK SHELTER NOW inside a sturdy structure and stay away from windows! This thunderstorm is capable of producing all types of severe weather including extremely large hail, destructive straight line winds and tornadoes. Move quickly to a safe shelter such as an interior room, a bathroom, closet or basement. && LAT...LON 4127 10349 4126 10319 4100 10294 4100 10331 4101 10354 TIME...MOT...LOC 0237Z 003DEG 19KT 4119 10331 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...2.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Natoli 253 WUUS55 KBOU 220243 SVRBOU COC075-220330- /O.NEW.KBOU.SV.W.0344.260822T0243Z-260822T0330Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Denver CO 843 PM MDT Fri Aug 21 2026 The National Weather Service in Denver has issued a * Severe Thunderstorm Warning for... Northern Logan County in northeastern Colorado... * Until 930 PM MDT. * At 843 PM MDT, a severe thunderstorm was located 7 miles south of Potter, or 19 miles southeast of Kimball, moving south at 25 mph. HAZARD...Two inch 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... Iliff, Peetz, Padroni, North Sterling Reservoir, Proctor and Westplains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail and damaging winds. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. Heavy rain is occurring with this storm and may lead to flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4100 10293 4075 10276 4073 10357 4077 10357 4100 10354 TIME...MOT...LOC 0243Z 2DEG 22KT 4112 10334 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...2.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Hiris 564 WUUS55 KCYS 220254 SVRCYS NEC033-105-220345- /O.NEW.KCYS.SV.W.0274.260822T0254Z-260822T0345Z/ BULLETIN - EAS ACTIVATION REQUESTED Severe Thunderstorm Warning National Weather Service Cheyenne WY 854 PM MDT Fri Aug 21 2026 The National Weather Service in Cheyenne has issued a * Severe Thunderstorm Warning for... Southwestern Cheyenne County in the Panhandle of Nebraska... Eastern Kimball County in the Panhandle of Nebraska... * Until 945 PM MDT. * At 854 PM MDT, a severe thunderstorm was located over Dix, or 8 miles east of Kimball, moving southeast at 25 mph. HAZARD...Tennis ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Kimball, Dix, Kimball Municipal Airport, and Kimball County Fairgrounds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. This storm is producing large hail. SEEK SHELTER NOW inside a sturdy structure and stay away from windows! This thunderstorm is capable of producing all types of severe weather including extremely large hail, destructive straight line winds and tornadoes. Move quickly to a safe shelter such as an interior room, a bathroom, closet or basement. && LAT...LON 4126 10368 4136 10355 4126 10341 4101 10329 4100 10331 4101 10370 TIME...MOT...LOC 0254Z 334DEG 21KT 4123 10349 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...2.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Natoli