Severe Thunderstorm Warning 26, NWS Denver/Boulder, CO

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Special Weather Statement
National Weather Service Denver CO
127 PM MDT Thu May 28 2026

COZ037-282015-
Central and Southeast Park County CO-
127 PM MDT Thu May 28 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN PARK COUNTY UNTIL
215 PM MDT...

At 127 PM MDT, Doppler radar was tracking a strong thunderstorm near
Elevenmile Canyon Reservoir, moving northeast at 10 mph.

HAZARD...Half inch size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations impacted include...
  Lake George and Elevenmile Canyon Reservoir.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3880 10547 3890 10561 3910 10547 3899 10533
      3886 10533
TIME...MOT...LOC 1927Z 229DEG 9KT 3887 10551

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...<30 MPH

MAI

Special Weather Statement
National Weather Service Denver CO
414 PM MDT Thu May 28 2026

COZ036-282300-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet CO-
414 PM MDT Thu May 28 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHWESTERN JEFFERSON AND
SOUTHWESTERN DOUGLAS COUNTIES UNTIL 5 PM MDT...

At 414 PM MDT, Doppler radar was tracking a strong thunderstorm near
Deckers, or 38 miles southwest of Denver, moving northeast at 10 mph.

HAZARD...Wind gusts up to 30 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...
  Deckers, Cheesman Reservoir and Devil's Head.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3913 10523 3921 10537 3922 10536 3923 10537
      3924 10537 3924 10536 3925 10537 3925 10536
      3926 10536 3927 10534 3928 10533 3929 10533
      3937 10526 3925 10505
TIME...MOT...LOC 2214Z 215DEG 7KT 3923 10524

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH

MAI

Special Weather Statement
National Weather Service Denver CO
524 PM MDT Thu May 28 2026

COZ033-035-290015-
Larimer and Boulder Counties Between 6000 and 9000 Feet CO-South
and East Jackson/Larimer/North and Northeast Grand/Northwest
Boulder Counties Above 9000 Feet CO-
524 PM MDT Thu May 28 2026

...A STRONG THUNDERSTORM WILL IMPACT EASTERN JACKSON AND CENTRAL
LARIMER COUNTIES UNTIL 615 PM MDT...

At 524 PM MDT, Doppler radar was tracking a strong thunderstorm 6
miles northeast of Cameron Pass, moving northeast at 15 mph.

HAZARD...Wind gusts up to 30 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...
  Kinikinik, Pingree Park and Rustic.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

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

&&

LAT...LON 4045 10571 4056 10591 4080 10577 4065 10547
TIME...MOT...LOC 2324Z 212DEG 13KT 4055 10578

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH

MAI

Special Weather Statement
National Weather Service Denver CO
530 PM MDT Thu May 28 2026

COZ034-290015-
South and Southeast Grand/West Central and Southwest
Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties
Above 9000 Feet CO-
530 PM MDT Thu May 28 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN SUMMIT...
SOUTHWESTERN CLEAR CREEK AND NORTH CENTRAL PARK COUNTIES UNTIL 615 PM
MDT...

At 530 PM MDT, Doppler radar was tracking a strong thunderstorm 4
miles northwest of Kenosha Pass, moving northeast at 10 mph.

HAZARD...Wind gusts up to 30 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...
  Jefferson and Kenosha Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

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

&&

LAT...LON 3937 10581 3945 10592 3965 10580 3946 10554
      3945 10557 3946 10559 3946 10565 3947 10567
      3946 10568 3946 10569 3943 10560 3938 10573
      3940 10576 3940 10578 3939 10578
TIME...MOT...LOC 2330Z 225DEG 7KT 3945 10582

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...30 MPH

MAI