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Home Return to list Severe Thunderstorm Warning 0110 Issued by the Denver / Boulder Forecast Office
Action: New Issued At: 2026-06-21 20:13:54
265
WUUS55 KBOU 220113
SVRBOU
COC075-121-220145-
/O.NEW.KBOU.SV.W.0110.260622T0113Z-260622T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
713 PM MDT Sun Jun 21 2026
The National Weather Service in Denver has issued a
* Severe Thunderstorm Warning for...
Southeastern Logan County in northeastern Colorado...
Northeastern Washington County in northeastern Colorado...
* Until 745 PM MDT.
* At 713 PM MDT, a severe thunderstorm was located 10 miles southeast
of Sterling, moving east at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
* Locations impacted include...
Sterling, Burdett, Lone Star, St Petersburg and Reiradon Hill.
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.
&&
LAT...LON 4032 10332 4064 10320 4061 10267 4044 10270
4044 10278 4035 10278 4035 10279 4026 10279
TIME...MOT...LOC 0113Z 279DEG 22KT 4049 10311
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
63
Action: Continued Issued At: 2026-06-21 20:24:09
449
WWUS55 KBOU 220123
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
723 PM MDT Sun Jun 21 2026
COC075-121-220145-
/O.CON.KBOU.SV.W.0110.000000T0000Z-260622T0145Z/
Logan CO-Washington CO-
723 PM MDT Sun Jun 21 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM MDT FOR
SOUTHEASTERN LOGAN AND NORTHEASTERN WASHINGTON COUNTIES...
At 723 PM MDT, a severe thunderstorm was located 9 miles north of
Burdett, or 13 miles southeast of Sterling, moving east at 25 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Burdett, Lone Star, St Petersburg and Reiradon Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Tornadoes can develop quickly from severe thunderstorms. Seek shelter
immediately in an interior room on the lowest floor of a well-built
structure.
&&
LAT...LON 4032 10326 4063 10313 4061 10267 4044 10270
4044 10278 4035 10278 4035 10279 4026 10279
TIME...MOT...LOC 0113Z 279DEG 22KT 4049 10311
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
63
Action: Expired Issued At: 2026-06-21 20:47:40
194
WWUS55 KBOU 220147
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
747 PM MDT Sun Jun 21 2026
COC075-121-220157-
/O.EXP.KBOU.SV.W.0110.000000T0000Z-260622T0145Z/
Logan CO-Washington CO-
747 PM MDT Sun Jun 21 2026
...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR NORTHEASTERN
WASHINGTON COUNTY...
The Severe Thunderstorm Warning that was previously in effect has
been reissued for southeastern Logan County and is in effect until
815 PM MDT. Please refer to that bulletin for the latest severe
weather information.
A Severe Thunderstorm Watch remains in effect until 800 PM MDT Sunday
for a portion of northeast Colorado.
&&
LAT...LON 4032 10326 4063 10313 4061 10267 4044 10270
4044 10278 4035 10278 4035 10279 4026 10279
TIME...MOT...LOC 0123Z 279DEG 22KT 4048 10303
$$
63
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