Alert archive / Colorado / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 27, NWS Denver/Boulder, CO

May 14, 20255 counties in Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at May 14, 2025, 5:58 PM MDT for 5 counties in Colorado. It was in force for 47 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 14, 2025, 5:58 PM MDT (23:58 UTC)
Expired: May 14, 2025, 6:45 PM MDT
In force: 47 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.0 in
Wind: 70.0 mph

Counties Lincoln County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO

The radar

The Goodland radar (KGLD), 141 km from the middle of the area, began a volume at 00:01 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 14, 4:33 PM MDT	Severe Thunderstorm Watch	SPC	5 hr

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 14, 5:16 PM MDT, 42 minutes earlier.

Area forecast discussion, May 14, 5:16 PM MDT, 42 minutes before

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Hazardous weather outlook, May 14, 11:07 AM MDT, 6 hours 51 minutes before

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1107 AM MDT Wed May 14 2025

COZ030>051-151715-
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-
1107 AM MDT Wed May 14 2025

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

.DAY ONE...This Afternoon and Tonight

A few severe thunderstorms will be possible this afternoon and
evening over portions of the northeast plains.  Damaging winds
up to 65 mph will be the main threat from the thunderstorms. The
threat is mainly in areas north and east of Fort Morgan to the
northeast corner of Colorado between 4 PM and 8 PM.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Strong winds are expected over the ridges and east slopes of the
Front Range early Thursday, with gusts up to 60 mph in wind prone
areas.

There will be a slight chance of showers and thunderstorms
Thursday through Saturday, mainly in the afternoons over the
mountains. An increase in thunderstorm activity is expected for
Sunday and Monday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight but reports
of strong winds would be appreciated.

Gimmestad

In the hours before

Special weather statement, May 14, 3:00 PM MDT, 2 hours 58 minutes before

Special Weather Statement
National Weather Service Denver CO
300 PM MDT Wed May 14 2025

COZ036-039-040-043-142145-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County CO-Boulder And Jefferson
Counties Below 6000 Feet/West Broomfield County CO-Jefferson and
West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-Central and
South Weld County CO-
300 PM MDT Wed May 14 2025

...A LINE OF STRONG THUNDERSTORMS WILL IMPACT DENVER...EAST CENTRAL
CLEAR CREEK...NORTHERN JEFFERSON...WESTERN ARAPAHOE...SOUTHWESTERN
WELD...WESTERN ADAMS...BROOMFIELD AND SOUTHEASTERN BOULDER COUNTIES
UNTIL 345 PM MDT...

At 300 PM MDT, Doppler radar was tracking a line of strong
thunderstorms extending from 6 miles north of Longmont to over
Kittredge, or extending from 21 miles south of Fort Collins to 18
miles west of Denver, moving east at 25 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree branches and blow around
unsecured objects. Minor damage to outdoor objects is possible.

Locations impacted include...
  Denver, Aurora, Lakewood, Thornton, Arvada, Westminster,
  Centennial, Boulder, Longmont, Broomfield, Commerce City,
  northeastern Littleton, Northglenn, Brighton, Englewood, Wheat
  Ridge, Lafayette, Golden, Louisville and Erie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare for sudden gusty winds. Secure loose objects and move to a
safe shelter inside a building or vehicle.

&&

LAT...LON 3961 10545 3966 10542 3966 10540 3968 10541
      3991 10528 3991 10522 3993 10527 4014 10530
      4013 10529 4019 10526 4019 10531 4021 10532
      4022 10529 4024 10532 4026 10531 4027 10463
      3961 10468 3961 10473 3958 10474
TIME...MOT...LOC 2059Z 280DEG 23KT 4026 10515 3993 10513 3966 10528

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

Barjenbruch

Special weather statement, May 14, 3:26 PM MDT, 2 hours 32 minutes before

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Special weather statement, May 14, 3:40 PM MDT, 2 hours 18 minutes before

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Local storm report, May 14, 3:50 PM MDT, 2 hours 8 minutes before

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Special weather statement, May 14, 4:28 PM MDT, 1 hour 30 minutes before

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Local storm report, May 14, 5:27 PM MDT, 31 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 14, 2:55 PM MDT	Special Weather Statement	BOU	Weld	50 min
May 14, 3:00 PM MDT	Special Weather Statement	BOU	Broomfield, Denver	45 min
May 14, 3:26 PM MDT	Special Weather Statement	BOU	Weld	49 min
May 14, 3:40 PM MDT	Special Weather Statement	BOU	Broomfield, Denver	50 min
May 14, 3:53 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Weld	23 min
May 14, 4:02 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Weld	43 min
May 14, 4:14 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Denver, Morgan, Weld	46 min
May 14, 4:28 PM MDT	Special Weather Statement	BOU	Arapahoe	47 min
May 14, 4:45 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Morgan, Washington, Weld	45 min
May 14, 5:22 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Logan, Phillips, Sedgwick, Washington	38 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.