Alert archive / Colorado / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 252, NWS Denver/Boulder, CO

July 10, 2026Adams County, Arapahoe County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jul 10, 2026, 5:52 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 10, 2026, 5:52 PM MDT (23:52 UTC)
Expired: Jul 10, 2026, 6:30 PM MDT
In force: 38 min
Issued by: NWS Denver/Boulder, CO
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Adams County, CO, Arapahoe County, CO

The radar

The Denver radar (KFTG), 3 km from the middle of the area, began a volume at 23:54 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 text

As transmitted.

154 
WUUS55 KBOU 102352
SVRBOU
COC001-005-110030-
/O.NEW.KBOU.SV.W.0252.260710T2352Z-260711T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
552 PM MDT Fri Jul 10 2026

The National Weather Service in Denver has issued a

* Severe Thunderstorm Warning for...
  Central Adams County in northeastern Colorado...
  Western Arapahoe and Central Arapahoe County in northeastern
  Colorado...

* Until 630 PM MDT.

* At 552 PM MDT, severe thunderstorms were located along a line from
  7 miles northeast of D.I.A Terminal and Concourses to over Arapahoe
  Park, or along a line from 25 miles northeast of Denver to 14 miles
  east of Denver, moving east at 20 mph.

  HAZARD...60 mph wind gusts and small hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Aurora, Bennett, Manila Village and Watkins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds.

Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.

&&

LAT...LON 3967 10474 3974 10464 3981 10462 3987 10460
      3987 10458 3990 10458 3990 10459 3995 10457
      3991 10432 3971 10440 3958 10454
PARTITION...408005 508005
TIME...MOT...LOC 2351Z 289DEG 16KT 3992 10456 3974 10464 3965 10472

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

63

3 follow-up statements

229 
WWUS55 KBOU 110006
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
606 PM MDT Fri Jul 10 2026

COC001-005-110030-
/O.CON.KBOU.SV.W.0252.000000T0000Z-260711T0030Z/
Adams CO-Arapahoe CO-
606 PM MDT Fri Jul 10 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR
ADAMS AND WESTERN ARAPAHOE AND CENTRAL ARAPAHOE COUNTIES...

At 606 PM MDT, severe thunderstorms were located along a line from 10
miles north of Manila Village to near Arapahoe Park, or along a line
from 27 miles northeast of Denver to 18 miles east of Denver, moving
east at 20 mph.

HAZARD...60 mph wind gusts and small hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
  Northeastern Aurora, Bennett and Manila Village.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds.

If on or near a lake , get away from the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 15 miles from
the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not be
caught on the water in a thunderstorm.

&&

LAT...LON 3970 10462 3972 10460 3974 10459 3978 10458
      3981 10456 3984 10455 3986 10453 3988 10453
      3990 10452 3992 10452 3993 10451 3994 10449
      3991 10432 3971 10440 3958 10454 3964 10467
PARTITION...408005 508005
TIME...MOT...LOC 2352Z 289DEG 16KT 3992 10456 3974 10463 3965 10471

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

63

242 
WWUS55 KBOU 110016
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
616 PM MDT Fri Jul 10 2026

COC001-005-110030-
/O.CON.KBOU.SV.W.0252.000000T0000Z-260711T0030Z/
Adams CO-Arapahoe CO-
616 PM MDT Fri Jul 10 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM MDT FOR
ADAMS AND CENTRAL ARAPAHOE COUNTIES...

At 616 PM MDT, severe thunderstorms were located along a line from 8
miles north of Bennett to 6 miles east of Arapahoe Park, or along a
line from 29 miles east of Denver to 21 miles east of Denver, moving
east at 20 mph.

HAZARD...60 mph wind gusts and small hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
  Eastern Aurora and Bennett.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. These storms are capable of producing damaging winds.

If on or near a lake, get away from the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 15 miles from
the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not be
caught on the water in a thunderstorm.

&&

LAT...LON 3961 10460 3962 10460 3966 10456 3970 10454
      3973 10453 3976 10451 3979 10450 3983 10448
      3986 10446 3985 10434 3971 10440 3958 10454
PARTITION...508005
TIME...MOT...LOC 0006Z 289DEG 16KT 3986 10448 3971 10456 3963 10463

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

63

012 
WWUS55 KBOU 110026
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
626 PM MDT Fri Jul 10 2026

COC001-005-110036-
/O.EXP.KBOU.SV.W.0252.000000T0000Z-260711T0030Z/
Adams CO-Arapahoe CO-
626 PM MDT Fri Jul 10 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 630 PM MDT FOR ADAMS
AND CENTRAL ARAPAHOE COUNTIES...

The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

&&

LAT...LON 3961 10460 3962 10460 3966 10456 3970 10454
      3973 10453 3976 10451 3979 10450 3983 10448
      3986 10446 3985 10434 3971 10440 3958 10454
PARTITION...508005
TIME...MOT...LOC 0016Z 290DEG 16KT 3984 10442 3970 10450 3961 10458

$$

63

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 6:03 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Phillips, Sedgwick	42 min
Jul 9, 6:07 PM MDT	Severe Thunderstorm Warning	BOU	Washington	38 min
Jul 9, 6:41 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	49 min
Jul 10, 3:25 PM MDT	Special Weather Statement	BOU	Elbert	35 min
Jul 10, 3:32 PM MDT	Severe Thunderstorm Warning	BOU	Elbert	28 min
Jul 10, 3:57 PM MDT	Special Weather Statement	BOU	Lincoln	48 min
Jul 10, 3:59 PM MDT	Special Weather Statement	BOU	Elbert	31 min
Jul 10, 4:25 PM MDT	Special Weather Statement	BOU	Lincoln	35 min
Jul 10, 4:53 PM MDT	Special Weather Statement	BOU	Lincoln	52 min
Jul 10, 5:13 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	32 min
Jul 10, 5:28 PM MDT	Special Weather Statement	BOU	Denver	32 min
Jul 10, 5:36 PM MDT	Special Weather Statement	BOU	Lincoln	39 min
Jul 10, 5:45 PM MDT	Special Weather Statement	BOU	Denver	30 min

Nearby

Severe Thunderstorm Warnings in Colorado, 2026 Every 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; radar from the NEXRAD Level II archive.