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Home Return to list Severe Thunderstorm Warning 0115 Issued by the Denver / Boulder Forecast Office
Action: New Issued At: 2026-06-21 22:30:14 069 WUUS55 KBOU 220330 SVRBOU COC013-220400- /O.NEW.KBOU.SV.W.0115.260622T0330Z-260622T0400Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Denver CO 930 PM MDT Sun Jun 21 2026 The National Weather Service in Denver has issued a * Severe Thunderstorm Warning for... Southeastern Boulder County in northeastern Colorado... * Until 1000 PM MDT. * At 930 PM MDT, a severe thunderstorm was located over Salina, or 32 miles northwest of Denver, moving east at 15 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Boulder, Nederland, Jamestown, Crisman, Salina, Sunshine, Wallstreet, Summerville, Gold Hill, Eldorado Springs, Allenspark and Marshall. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing large hail. && LAT...LON 3996 10552 4016 10548 4013 10518 3992 10522 TIME...MOT...LOC 0329Z 279DEG 10KT 4005 10537 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ 63 Action: Continued Issued At: 2026-06-21 22:41:44 254 WWUS55 KBOU 220341 SVSBOU Severe Weather Statement National Weather Service Denver CO 941 PM MDT Sun Jun 21 2026 COC013-220400- /O.CON.KBOU.SV.W.0115.000000T0000Z-260622T0400Z/ Boulder CO- 941 PM MDT Sun Jun 21 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 10 PM MDT FOR SOUTHEASTERN BOULDER COUNTY... At 941 PM MDT, a severe thunderstorm was located near Crisman, or 29 miles northwest of Denver, moving southeast at 15 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Boulder, Jamestown, Crisman, Salina, Sunshine, Wallstreet, Summerville, Gold Hill, Eldorado Springs and Marshall. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing large hail. && LAT...LON 3995 10547 4015 10541 4013 10518 3992 10522 TIME...MOT...LOC 0330Z 295DEG 11KT 4003 10537 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ 63 Action: Expired Issued At: 2026-06-21 22:55:15 617 WWUS55 KBOU 220354 SVSBOU Severe Weather Statement National Weather Service Denver CO 954 PM MDT Sun Jun 21 2026 COC013-220404- /O.EXP.KBOU.SV.W.0115.000000T0000Z-260622T0400Z/ Boulder CO- 954 PM MDT Sun Jun 21 2026 ...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 10 PM MDT FOR SOUTHEASTERN BOULDER COUNTY... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, small hail and heavy rain are still possible with this thunderstorm. && LAT...LON 3995 10547 4015 10541 4013 10518 3992 10522 TIME...MOT...LOC 0341Z 295DEG 11KT 4002 10533 $$ 63 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||