Alert archive / Colorado / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 225, NWS Denver/Boulder, CO

July 3, 2026Morgan County, Weld County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 3, 2026, 6:17 PM MDT for Morgan County, Weld County, Colorado. It was in force for 23 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
Jul 3, 2026, 6:17 PM MDT (00:17 UTC)
Expired
Jul 3, 2026, 6:40 PM MDT
In force
23 min
Issued by
NWS Denver/Boulder, CO
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Morgan County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 79 km from the middle of the area, began a volume at 00:17 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.3 hours before the alert went out and 306 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2026-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1785 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2026-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -57 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1785 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
1714 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-57 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-1.3

Open this sounding in Storm Lab

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 Jul 3, 2:33 PM MDT, 3 hours 44 minutes earlier.

Area forecast discussion, Jul 3, 2:33 PM MDT, 3 hours 44 minutes before
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In the hours before

Special weather statement, Jul 3, 5:15 PM MDT, 1 hour 2 minutes before
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Special weather statement, Jul 3, 5:21 PM MDT, 56 minutes before
Special Weather Statement
National Weather Service Denver CO
521 PM MDT Fri Jul 3 2026

COZ040-045-040000-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County CO-Central and East
Adams and Arapahoe Counties CO-
521 PM MDT Fri Jul 3 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN DENVER AND WESTERN
ADAMS COUNTIES UNTIL 6 PM MDT...

At 521 PM MDT, Doppler radar was tracking a strong thunderstorm just
south of D.I.A Terminal and Concourses, or 16 miles east of Denver,
moving northeast at 25 mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Denver International Airport, D.I.A Terminal and Concourses and
  Watkins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3974 10460 3978 10476 4000 10470 4000 10443
      3999 10436
TIME...MOT...LOC 2321Z 210DEG 21KT 3980 10467

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

BRQ
Special weather statement, Jul 3, 5:34 PM MDT, 43 minutes before
Special Weather Statement
National Weather Service Denver CO
534 PM MDT Fri Jul 3 2026

COZ035-038-040015-
Larimer County Below 6000 Feet/Northwest Weld County CO-Larimer
and Boulder Counties Between 6000 and 9000 Feet CO-
534 PM MDT Fri Jul 3 2026

...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL LARIMER COUNTY
UNTIL 615 PM MDT...

At 534 PM MDT, Doppler radar was tracking a strong thunderstorm near
Stove Prairie, or 15 miles west of Fort Collins, moving east at 15
mph.

HAZARD...Wind gusts up to 40 mph and pea size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Fort Collins, Stove Prairie, Bellvue, Teds Place, Poudre Park,
  Buckhorn Mountain, Laporte and Horsetooth Mountain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4055 10541 4065 10543 4076 10510 4053 10504
TIME...MOT...LOC 2334Z 261DEG 13KT 4058 10536

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

BRQ
Special weather statement, Jul 3, 5:50 PM MDT, 27 minutes before
Special Weather Statement
National Weather Service Denver CO
550 PM MDT Fri Jul 3 2026

COZ045-046-049-040030-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County CO-Washington County CO-Central and East Adams and
Arapahoe Counties CO-
550 PM MDT Fri Jul 3 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN WASHINGTON...
ARAPAHOE...NORTHEASTERN ELBERT AND NORTH CENTRAL LINCOLN COUNTIES
UNTIL 630 PM MDT...

At 550 PM MDT, Doppler radar was tracking a strong thunderstorm 7
miles north of Agate, or 23 miles northwest of Limon, moving east at
20 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Cottonwood Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3957 10398 3962 10399 3976 10364 3949 10357
      3949 10397
TIME...MOT...LOC 2349Z 260DEG 17KT 3956 10390

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

BRQ
Special weather statement, Jul 3, 5:52 PM MDT, 25 minutes before
Special Weather Statement
National Weather Service Denver CO
552 PM MDT Fri Jul 3 2026

COZ042-040030-
Northeast Weld County CO-
552 PM MDT Fri Jul 3 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN WELD COUNTY UNTIL
630 PM MDT...

At 552 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles northeast of Briggsdale, or 33 miles northeast of Greeley,
moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and half inch size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Keota, Pawnee Buttes and Buckingham.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4061 10428 4076 10430 4085 10393 4061 10388
TIME...MOT...LOC 2352Z 260DEG 17KT 4069 10424

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

BRQ
Special weather statement, Jul 3, 5:56 PM MDT, 21 minutes before
Special Weather Statement
National Weather Service Denver CO
556 PM MDT Fri Jul 3 2026

COZ040-043-045-040045-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County CO-Central and South
Weld County CO-Central and East Adams and Arapahoe Counties CO-
556 PM MDT Fri Jul 3 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN DENVER...SOUTH
CENTRAL WELD AND CENTRAL ADAMS COUNTIES UNTIL 645 PM MDT...

At 556 PM MDT, Doppler radar was tracking a strong thunderstorm 11
miles north of Manila Village, or 28 miles northeast of Denver,
moving northeast at 25 mph.

HAZARD...Wind gusts up to 40 mph and half inch size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Prospect Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 4000 10452 4020 10430 4003 10415 4000 10415
      4000 10412 3999 10411 3979 10445 3992 10461
TIME...MOT...LOC 2356Z 229DEG 21KT 3991 10448

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

BRQ

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 7:38 PM MDTSevere Thunderstorm WarningBOULogan, Washington52 min
Jul 3, 7:47 PM MDTSevere Thunderstorm WarningBOULogan, Morgan, Washington32 min
Jul 3, 7:50 PM MDTTornado WarningBOUWashington25 min
Jul 3, 8:21 PM MDTAreal Flood AdvisoryBOULogan, Washington56 min
Jul 3, 8:36 PM MDTFlash Flood WarningBOULogan, Washington5 hr
Jul 3, 9:17 PM MDTAreal Flood AdvisoryBOUPhillips3 hr
Jul 3, 10:42 PM MDTSpecial Weather StatementBOUElbert48 min
Jul 3, 11:21 PM MDTSevere Thunderstorm WarningBOUElbert39 min
Jul 3, 11:36 PM MDTSevere Thunderstorm WarningBOULincoln, Washington24 min
Jul 3, 11:48 PM MDTTornado WarningBOUElbert, Lincoln27 min
Jul 3, 11:55 PM MDTSevere Thunderstorm Warning Destructive damage threatBOULincoln, Washington35 min
Jul 4, 12:04 AM MDTAreal Flood AdvisoryBOUElbert3 hr
Jul 4, 12:10 AM MDTSevere Thunderstorm WarningBOUElbert, Lincoln50 min
Jul 4, 12:21 AM MDTFlash Flood WarningBOULincoln, Washington4 hr
Jul 4, 12:30 AM MDTSevere Thunderstorm Warning Considerable damage threatBOULincoln, Washington30 min
Jul 4, 1:08 AM MDTSpecial Weather StatementBOUWashington52 min
Jul 4, 1:39 AM MDTAreal Flood AdvisoryBOUWashington3 hr
Jul 4, 2:25 AM MDTSpecial Weather StatementBOULincoln35 min
Jul 4, 3:53 PM MDTSpecial Weather StatementBOULogan37 min
Jul 4, 4:29 PM MDTSpecial Weather StatementBOUAdams31 min
Jul 4, 4:52 PM MDTSpecial Weather StatementBOULogan23 min
Jul 4, 4:53 PM MDTSpecial Weather StatementBOULogan37 min
Jul 4, 5:38 PM MDTSpecial Weather StatementBOUPhillips52 min
Jul 4, 5:39 PM MDTSpecial Weather StatementBOUWashington51 min
Jul 4, 5:40 PM MDTSpecial Weather StatementBOUWashington50 min
Jul 4, 5:53 PM MDTSevere Thunderstorm Warning Considerable damage threatBOUWashington37 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2026Every severe thunderstorm warning in 2026

Sources

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