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Home Return to list Severe Thunderstorm Warning 0399 Issued by the Denver / Boulder Forecast Office
Action: New Issued At: 2026-09-19 16:52:57
726
WUUS55 KBOU 192152
SVRBOU
COC073-192230-
/O.NEW.KBOU.SV.W.0399.260919T2152Z-260919T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Denver CO
352 PM MDT Sat Sep 19 2026
The National Weather Service in Denver has issued a
* Severe Thunderstorm Warning for...
East Central Lincoln County in east central Colorado...
* Until 430 PM MDT.
* At 352 PM MDT, a severe thunderstorm was located near Arriba, or 23
miles east of Limon, moving east at 30 mph.
HAZARD...Two inch hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees. Hail is
accumulating on roadways causing hazardous travel.
* Locations impacted include...
Arriba.
This includes Interstate 70 between mile markers 380 and 389.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
dangerous hail and damaging winds.
&&
LAT...LON 3916 10345 3932 10332 3932 10316 3922 10315
3912 10316
TIME...MOT...LOC 2152Z 279DEG 25KT 3923 10326
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schlatter
Action: Continued Issued At: 2026-09-19 17:10:28
203
WWUS55 KBOU 192209
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
409 PM MDT Sat Sep 19 2026
COC073-192230-
/O.CON.KBOU.SV.W.0399.000000T0000Z-260919T2230Z/
Lincoln CO-
409 PM MDT Sat Sep 19 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM MDT FOR
EAST CENTRAL LINCOLN COUNTY...
At 409 PM MDT, a severe thunderstorm was located 5 miles east of
Arriba, or 27 miles east of Limon, moving east at 20 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees. Hail is accumulating on
roadways causing hazardous travel.
Locations impacted include...
Arriba.
This includes Interstate 70 between mile markers 382 and 389.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Anyone outdoors should move to shelter inside a well-built structure
and stay away from windows. This storm is capable of producing
dangerous hail and damaging winds.
&&
LAT...LON 3917 10331 3932 10330 3932 10316 3927 10316
3922 10315 3917 10316 3913 10316
TIME...MOT...LOC 2152Z 263DEG 18KT 3925 10329
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Schlatter
Action: Expired Issued At: 2026-09-19 17:22:58
666
WWUS55 KBOU 192222
SVSBOU
Severe Weather Statement
National Weather Service Denver CO
422 PM MDT Sat Sep 19 2026
COC073-192232-
/O.EXP.KBOU.SV.W.0399.000000T0000Z-260919T2230Z/
Lincoln CO-
422 PM MDT Sat Sep 19 2026
...SEVERE THUNDERSTORM WARNING WILL EXPIRE AT 430 PM MDT FOR EAST
CENTRAL LINCOLN COUNTY...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
&&
LAT...LON 3917 10331 3932 10330 3932 10316 3927 10316
3922 10315 3917 10316 3913 10316
TIME...MOT...LOC 2209Z 263DEG 18KT 3926 10318
$$
Schlatter
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