Alert archive / Colorado / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 179, NWS Denver/Boulder, CO

June 25, 2025Weld County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 25, 2025, 2:21 PM MDT for Weld County, Colorado. It was in force for 19 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 25, 2025, 2:21 PM MDT (20:21 UTC)
Expired
Jun 25, 2025, 2:40 PM MDT
In force
19 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Weld County, CO

The radar

The Cheyenne radar (KCYS), 75 km from the middle of the area, began a volume at 20:22 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Denver/Boulder, CO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 12:14 PM MDT, 2 hours 7 minutes earlier.

Area forecast discussion, Jun 25, 12:14 PM MDT, 2 hours 7 minutes before
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Hazardous weather outlook, Jun 25, 10:43 AM MDT, 3 hours 38 minutes before
Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1043 AM MDT Wed Jun 25 2025

COZ030>051-261645-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1043 AM MDT Wed Jun 25 2025

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Thunderstorms will develop over the Front Range mountains and in
the I-25 corridor this afternoon and move east across the plains
through this evening. Some of these storms may produce damaging
wind gusts especially across the far northeast corner of Colorado.
Storms will also produce heavy rain which could lead to localized
flooding, especially over the eastern portion of the plains.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Temperatures will warm up each day through Saturday with highs in
the mid 90s returning across the plains on Saturday. There will be
a daily chance for an isolated strong to severe storms but there
is not expected to be any day with widespread severe weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely after noon today to report potential
severe wind or hail.

In the hours before

Special weather statement, Jun 25, 1:51 PM MDT, 30 minutes before
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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 6:22 PM MDTSpecial Weather StatementBOUPhillips38 min
Jun 24, 6:27 PM MDTSpecial Weather StatementBOULincoln33 min
Jun 25, 1:51 PM MDTSpecial Weather StatementBOUWeld39 min
Jun 25, 2:39 PM MDTAreal Flood AdvisoryBOUElbert2 hr
Jun 25, 3:00 PM MDTSpecial Weather StatementBOUElbert45 min
Jun 25, 3:05 PM MDTSpecial Weather StatementBOUWashington40 min
Jun 25, 3:36 PM MDTAreal Flood AdvisoryBOULarimer80 min
Jun 25, 3:44 PM MDTAreal Flood AdvisoryBOULincoln, Washington3 hr
Jun 25, 3:49 PM MDTSpecial Weather StatementBOULarimer26 min
Jun 25, 4:19 PM MDTSpecial Weather StatementBOUWeld26 min
Jun 25, 4:37 PM MDTSpecial Weather StatementBOUWeld38 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2025Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.