Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 218, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Aug 26, 2021, 3:12 PM MDT for Cheyenne County, Kit Carson County, Colorado. It was in force for 63 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 26, 2021, 3:12 PM MDT (21:12 UTC)
- Expired
- Aug 26, 2021, 4:15 PM MDT
- In force
- 63 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cheyenne County, CO, Kit Carson County, CO
The radar
The Goodland radar (KGLD), 110 km from the middle of the area, began a volume at 21:14 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 26, 4:09 PM MDT | HAIL 1 | Seibert, CO | DELAYED REPORT VIA SOCIAL MEDIA OF PEA TO QUARTER SIZE HAIL WITH 2.25 INCHES OF RAIN. TIME ESTIMATED BASED ON RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.2 hours before the alert went out and 91 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 852 J/kg
- Mixed-layer CIN
- -281 J/kg
- Mixed-layer LCL
- 1389 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
742 WUUS53 KGLD 262112 SVRGLD COC017-063-262215- /O.NEW.KGLD.SV.W.0218.210826T2112Z-210826T2215Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Goodland KS 312 PM MDT Thu Aug 26 2021 The National Weather Service in Goodland has issued a * Severe Thunderstorm Warning for... Northwestern Cheyenne County in east central Colorado... Southwestern Kit Carson County in east central Colorado... * Until 415 PM MDT. * At 312 PM MDT, a severe thunderstorm was located 7 miles east of Boyero, or 23 miles south of Flagler, moving east at 5 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will remain over mainly rural areas of northwestern Cheyenne and southwestern Kit Carson Counties in east central Colorado, including the following locations... Wild Horse and Aroya. This includes Interstate 70 in Colorado between mile markers 390 and 421. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3929 10316 3934 10258 3886 10256 3867 10317 TIME...MOT...LOC 2112Z 252DEG 6KT 3896 10313 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Vincent
4 follow-up statements
908 WWUS53 KGLD 262123 SVSGLD Severe Weather Statement National Weather Service Goodland KS 323 PM MDT Thu Aug 26 2021 COC017-063-262215- /O.CON.KGLD.SV.W.0218.000000T0000Z-210826T2215Z/ Cheyenne CO-Kit Carson CO- 323 PM MDT Thu Aug 26 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT FOR NORTHWESTERN CHEYENNE AND SOUTHWESTERN KIT CARSON COUNTIES IN EAST CENTRAL COLORADO... At 323 PM MDT, a severe thunderstorm was located 9 miles northeast of Boyero, or 20 miles south of Flagler, moving northeast at 5 mph. HAZARD...60 mph wind gusts and nickel size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Stratton, Flagler, Seibert, Vona, Wild Horse and Aroya. This includes Interstate 70 in Colorado between mile markers 390 and 421. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3929 10316 3934 10258 3890 10256 3873 10317 TIME...MOT...LOC 2123Z 236DEG 5KT 3900 10311 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.88 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Vincent
566 WWUS53 KGLD 262134 SVSGLD Severe Weather Statement National Weather Service Goodland KS 334 PM MDT Thu Aug 26 2021 COC017-063-262215- /O.CON.KGLD.SV.W.0218.000000T0000Z-210826T2215Z/ Cheyenne CO-Kit Carson CO- 334 PM MDT Thu Aug 26 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT FOR NORTHWESTERN CHEYENNE AND SOUTHWESTERN KIT CARSON COUNTIES IN EAST CENTRAL COLORADO... At 334 PM MDT, a severe thunderstorm was located 14 miles northeast of Boyero, or 16 miles south of Flagler, moving northeast at 10 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Stratton, Flagler, Seibert, Vona, Wild Horse and Aroya. This includes Interstate 70 in Colorado between mile markers 390 and 421. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3929 10316 3934 10258 3890 10256 3873 10317 TIME...MOT...LOC 2134Z 238DEG 9KT 3905 10305 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Vincent
922 WWUS53 KGLD 262141 SVSGLD Severe Weather Statement National Weather Service Goodland KS 341 PM MDT Thu Aug 26 2021 COC017-063-262215- /O.CON.KGLD.SV.W.0218.000000T0000Z-210826T2215Z/ Cheyenne CO-Kit Carson CO- 341 PM MDT Thu Aug 26 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT FOR NORTHWESTERN CHEYENNE AND SOUTHWESTERN KIT CARSON COUNTIES IN EAST CENTRAL COLORADO... At 340 PM MDT, a severe thunderstorm was located 12 miles south of Flagler, moving northeast at 10 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Stratton, Flagler, Seibert, Vona and Aroya. This includes Interstate 70 in Colorado between mile markers 390 and 421. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3929 10316 3934 10258 3897 10256 3884 10317 TIME...MOT...LOC 2140Z 216DEG 10KT 3911 10304 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Vincent
629
WWUS53 KGLD 262207
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
407 PM MDT Thu Aug 26 2021
COC017-262216-
/O.CAN.KGLD.SV.W.0218.000000T0000Z-210826T2215Z/
Cheyenne CO-
407 PM MDT Thu Aug 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CHEYENNE COUNTY
IN EAST CENTRAL COLORADO IS CANCELLED...
The severe thunderstorm which prompted the warning has moved
northward into Kit Carson county. As a result, the warning for
Cheyenne county has been cancelled.
LAT...LON 3929 10315 3934 10258 3910 10257 3909 10316
TIME...MOT...LOC 2206Z 179DEG 7KT 3929 10288
$$
COC063-262215-
/O.CON.KGLD.SV.W.0218.000000T0000Z-210826T2215Z/
Kit Carson CO-
407 PM MDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR SOUTHWESTERN KIT CARSON COUNTY...
At 406 PM MDT, a severe thunderstorm was located over Seibert, moving
north at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Stratton, Flagler, Seibert and Vona.
This includes Interstate 70 in Colorado between mile markers 391 and
421.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3929 10315 3934 10258 3910 10257 3909 10316
TIME...MOT...LOC 2206Z 179DEG 7KT 3929 10288
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
VincentThe office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 1:33 PM MDT | Special Weather Statement | GLD | Kit Carson | 57 min |
| Aug 26, 2:20 PM MDT | Special Weather Statement | GLD | Cheyenne, Kit Carson | 55 min |
| Aug 26, 4:05 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson | 48 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.