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Severe Thunderstorm Warning 0323
Issued by the Denver / Boulder Forecast Office

Action Issued Starts Expiration
New 2026-08-15 15:17:26 2026-08-15 15:16:00 2026-08-15 15:45:00
Continued 2026-08-15 15:27:56 2026-08-15 15:45:00
Expired 2026-08-15 15:40:56 2026-08-15 15:45:00


Action: New
Issued At: 2026-08-15 15:17:26

954 
WUUS55 KBOU 152016
SVRBOU
COC005-035-039-152045-
/O.NEW.KBOU.SV.W.0323.260815T2016Z-260815T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
216 PM MDT Sat Aug 15 2026

The National Weather Service in Denver has issued a

* Severe Thunderstorm Warning for...
  Northwestern Elbert County in east central Colorado...
  Western Arapahoe County in northeastern Colorado...
  Northeastern Douglas County in northeastern Colorado...

* Until 245 PM MDT.

* At 216 PM MDT, a severe thunderstorm was located near Parker, or 16
  miles southeast of Denver, moving northeast at 10 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage to
           roofs, siding, and trees.

* Locations impacted include...
  Southwestern Aurora, Centennial, eastern Highlands Ranch,
  northeastern Castle Rock, Parker, Greenwood Village, Lone Tree, The
  Pinery, Castle Pines, Foxfield and Cherry Creek Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

Heavy rain is occurring with this storm and may lead to flooding. Do
not drive your vehicle through flooded roadways.

&&

LAT...LON 3957 10494 3962 10489 3963 10489 3965 10487
      3966 10485 3966 10486 3969 10483 3958 10464
      3957 10464 3957 10462 3954 10457 3940 10478
      3952 10498
PARTITION...408005
TIME...MOT...LOC 2016Z 223DEG 9KT 3951 10483

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

$$

63


Action: Continued
Issued At: 2026-08-15 15:27:56

110 
WWUS55 KBOU 152027
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
227 PM MDT Sat Aug 15 2026

COC005-035-039-152045-
/O.CON.KBOU.SV.W.0323.000000T0000Z-260815T2045Z/
Arapahoe CO-Douglas CO-Elbert CO-
227 PM MDT Sat Aug 15 2026

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM MDT FOR
ELBERT, WESTERN ARAPAHOE AND DOUGLAS COUNTIES...

At 227 PM MDT, a severe thunderstorm was located near Parker, or 15
miles southeast of Denver, moving northeast at 10 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to
         roofs, siding, and trees.

Locations impacted include...
  Southwestern Aurora, Centennial, eastern Highlands Ranch,
  northeastern Castle Rock, Parker, Greenwood Village, Lone Tree, The
  Pinery, Castle Pines, Foxfield and Cherry Creek Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.

Heavy rain is occurring with this storm and may lead to flooding. Do
not drive your vehicle through flooded roadways.

&&

LAT...LON 3957 10494 3962 10489 3963 10489 3965 10487
      3966 10485 3966 10486 3969 10483 3958 10464
      3957 10464 3957 10462 3954 10457 3940 10478
      3952 10498
PARTITION...408005
TIME...MOT...LOC 2016Z 223DEG 9KT 3952 10483

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

$$

63


Action: Expired
Issued At: 2026-08-15 15:40:56

471 
WWUS55 KBOU 152040
SVSBOU

Severe Weather Statement
National Weather Service Denver CO
240 PM MDT Sat Aug 15 2026

COC005-035-039-152050-
/O.EXP.KBOU.SV.W.0323.000000T0000Z-260815T2045Z/
Arapahoe CO-Douglas CO-Elbert CO-
240 PM MDT Sat Aug 15 2026

...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 245 PM MDT FOR ELBERT,
WESTERN ARAPAHOE AND DOUGLAS COUNTIES...

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

A Severe Thunderstorm Watch remains in effect until 900 PM MDT
Saturday for portions of east central and northeast Colorado.

&&

LAT...LON 3957 10494 3962 10489 3963 10489 3965 10487
      3966 10485 3966 10486 3969 10483 3958 10464
      3957 10464 3957 10462 3954 10457 3940 10478
      3952 10498
PARTITION...408005
TIME...MOT...LOC 2027Z 223DEG 9KT 3954 10480

$$

63



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