Alert archive / Colorado / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 55, NWS Denver/Boulder, CO

May 24, 2025Jefferson County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 24, 2025, 5:09 PM MDT for Jefferson County, Colorado. It was in force for 51 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: May 24, 2025, 5:09 PM MDT (23:09 UTC)
Expired: May 24, 2025, 6:00 PM MDT
In force: 51 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Jefferson County, CO

The radar

The Denver radar (KFTG), 64 km from the middle of the area, began a volume at 23:12 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 May 24, 2:26 PM MDT, 2 hours 43 minutes earlier.

Area forecast discussion, May 24, 2:26 PM MDT, 2 hours 43 minutes before

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Hazardous weather outlook, May 24, 10:05 AM MDT, 7 hours 4 minutes before

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1005 AM MDT Sat May 24 2025

COZ030>051-251615-
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-
1005 AM MDT Sat May 24 2025

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

.DAY ONE...Today and Tonight

A few severe thunderstorms will be possible this afternoon
through the early evening hours along the I-25 Corridor from
Denver south to the Palmer Divide. At this time, the main focus
area appears to be over southern portions of the Denver metro,
eastern Douglas county and western portions of Elbert county.
Large hail, damaging winds and a few tornadoes will be possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Scattered to numerous showers and storms can be expected on
Sunday, but cooler weather will likely limit instability and any
severe storm threat. Memorial day should see a little lower shower
and storm coverage, with temperatures remaining below normal.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon after 2 pm.

In the hours before

Local storm report, May 24, 2:34 PM MDT, 2 hours 35 minutes before

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Local storm report, May 24, 2:43 PM MDT, 2 hours 26 minutes before

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Special weather statement, May 24, 3:15 PM MDT, 1 hour 54 minutes before

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Special weather statement, May 24, 3:32 PM MDT, 1 hour 37 minutes before

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Local storm report, May 24, 3:58 PM MDT, 1 hour 11 minutes before

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Local storm report, May 24, 4:16 PM MDT, 53 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 6:10 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Washington	23 min
May 23, 6:30 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Washington	45 min
May 24, 1:28 PM MDT	Special Weather Statement	BOU	Douglas	47 min
May 24, 2:11 PM MDT	Special Weather Statement	BOU	Elbert	49 min
May 24, 2:29 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	46 min
May 24, 2:49 PM MDT	Severe Thunderstorm Warning	BOU	Douglas	41 min
May 24, 3:15 PM MDT	Special Weather Statement	BOU	Elbert	45 min
May 24, 3:32 PM MDT	Special Weather Statement	BOU	Elbert	43 min
May 24, 3:47 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Elbert	43 min
May 24, 4:28 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	47 min
May 24, 5:53 PM MDT	Severe Thunderstorm Warning	BOU	Douglas	37 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2025 Every 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.