


Severe Thunderstorm Warning
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
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118 WUUS55 KBOU 171946 SVRBOU COC001-013-014-123-172015- /O.NEW.KBOU.SV.W.0166.250617T1946Z-250617T2015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Denver CO 146 PM MDT Tue Jun 17 2025 The National Weather Service in Denver has issued a * Severe Thunderstorm Warning for... Northwestern Adams County in northeastern Colorado... Northeast Boulder and Southeast Boulder County in northeastern Colorado... Broomfield County in northeastern Colorado... Southwestern Weld County in northeastern Colorado... * Until 215 PM MDT. * At 146 PM MDT, a severe thunderstorm was located over Lafayette, or 22 miles north of Denver, moving east at 35 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is possible. * Locations impacted include... Thornton, northeastern Westminster, eastern Boulder, southeastern Longmont, Broomfield, northern Commerce City, northern Northglenn, Brighton, Lafayette, Louisville, Erie, Superior, Firestone, Frederick, Fort Lupton, Dacono, Todd Creek, Niwot, Barr Lake and Wattenburg. 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 3991 10522 4008 10521 4015 10509 4020 10475 3992 10476 3991 10505 3991 10515 3990 10515 3990 10517 3991 10517 3992 10516 PARTITION...308013 908013 TIME...MOT...LOC 1946Z 258DEG 30KT 4003 10511 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ Schlatter