Alert archive / Colorado / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 219, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Aug 26, 2021, 4:05 PM MDT for Kit Carson County, Colorado. It was in force for 48 min. 2 reports 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, 4:05 PM MDT (22:05 UTC)
- Expired
- Aug 26, 2021, 4:53 PM MDT
- In force
- 48 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Kit Carson County, CO
The radar
The Goodland radar (KGLD), 106 km from the middle of the area, began a volume at 22:05 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 0.25 | Flagler, CO | DELAYED SPOTTER REPORT OF PEA SIZE HAIL. TIME ESTIMATED BASED ON RADAR. |
| 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, 10.1 hours before the alert went out and 71 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.
959
WUUS53 KGLD 262205
SVRGLD
COC063-262300-
/O.NEW.KGLD.SV.W.0219.210826T2205Z-210826T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
405 PM MDT Thu Aug 26 2021
The National Weather Service in Goodland has issued a
* Severe Thunderstorm Warning for...
Western Kit Carson County in east central Colorado...
* Until 500 PM MDT.
* At 404 PM MDT, a severe thunderstorm was located near 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.
* This severe thunderstorm will remain over mainly rural areas of
western Kit Carson County.
This includes Interstate 70 in Colorado between mile markers 391 and
425.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall with this storm may lead to flash flooding. Do
not drive your vehicle through flooded roadways.
&&
LAT...LON 3917 10315 3957 10315 3957 10250 3910 10248
3909 10316
TIME...MOT...LOC 2204Z 175DEG 9KT 3931 10283
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Vincent3 follow-up statements
043
WWUS53 KGLD 262225
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
425 PM MDT Thu Aug 26 2021
COC063-262300-
/O.CON.KGLD.SV.W.0219.000000T0000Z-210826T2300Z/
Kit Carson CO-
425 PM MDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MDT
FOR NORTHWESTERN KIT CARSON COUNTY...
At 424 PM MDT, a severe thunderstorm was located near Vona, or 4
miles east of Seibert, moving northeast at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Stratton, Seibert and Vona.
This includes Interstate 70 in Colorado between mile markers 398 and
426.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3919 10302 3957 10304 3957 10250 3920 10248
3919 10280
TIME...MOT...LOC 2224Z 240DEG 9KT 3929 10279
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Vincent091
WWUS53 KGLD 262242
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
442 PM MDT Thu Aug 26 2021
COC063-262300-
/O.CON.KGLD.SV.W.0219.000000T0000Z-210826T2300Z/
Kit Carson CO-
442 PM MDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM MDT
FOR NORTH CENTRAL KIT CARSON COUNTY...
At 442 PM MDT, a severe thunderstorm was located 5 miles northeast of
Vona, or 7 miles northwest of Stratton, moving northeast at 5 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 and Vona.
This includes Interstate 70 in Colorado between mile markers 411 and
426.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3925 10278 3940 10279 3957 10280 3957 10250
3926 10248 3925 10264
TIME...MOT...LOC 2242Z 216DEG 5KT 3938 10270
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Vincent354
WWUS53 KGLD 262253
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
453 PM MDT Thu Aug 26 2021
COC063-262258-
/O.CAN.KGLD.SV.W.0219.000000T0000Z-210826T2300Z/
Kit Carson CO-
453 PM MDT Thu Aug 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL KIT CARSON
COUNTY IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
Wind gusts up to 50 mph remain possible with this storm as it tracks
slowly north toward southern Yuma county.
LAT...LON 3925 10278 3940 10279 3957 10280 3957 10250
3926 10248 3925 10264
TIME...MOT...LOC 2246Z 175DEG 9KT 3940 10270
$$
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, 3:12 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 63 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.