Alert archive / Kansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 203, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Aug 19, 2021, 3:38 PM MDT for Yuma County, Colorado; Cheyenne County, Sherman County, Kansas. It was in force for 52 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 19, 2021, 3:38 PM MDT (21:38 UTC)
- Expired
- Aug 19, 2021, 4:30 PM MDT
- In force
- 52 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Yuma County, CO, Cheyenne County, KS, Sherman County, KS
The radar
The Goodland radar (KGLD), 36 km from the middle of the area, began a volume at 21:41 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 19, 4:05 PM MDT | HAIL 1 | 7 Ssw Saint Francis, KS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 19, 1:14 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.6 hours before the alert went out and 116 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
- 246 J/kg
- Mixed-layer CIN
- -241 J/kg
- Mixed-layer LCL
- 927 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -59 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
789
WUUS53 KGLD 192138
SVRGLD
COC125-KSC023-181-192230-
/O.NEW.KGLD.SV.W.0203.210819T2138Z-210819T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
338 PM MDT Thu Aug 19 2021
The National Weather Service in Goodland has issued a
* Severe Thunderstorm Warning for...
Southeastern Yuma County in northeastern Colorado...
Southwestern Cheyenne County in northwestern Kansas...
Northwestern Sherman County in northwestern Kansas...
* Until 430 PM MDT/530 PM CDT/.
* At 337 PM MDT/437 PM CDT/, a severe thunderstorm was located 12
miles north of Ruleton, moving north at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will remain over mainly rural areas of
southeastern Yuma County in northeastern Colorado, southwestern
Cheyenne and northwestern Sherman Counties in northwestern Kansas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3948 10182 3948 10202 3989 10212 3990 10176
TIME...MOT...LOC 2137Z 178DEG 24KT 3952 10194
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KMK/JRM2 follow-up statements
918
WWUS53 KGLD 192150
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
350 PM MDT Thu Aug 19 2021
COC125-KSC023-181-192230-
/O.CON.KGLD.SV.W.0203.000000T0000Z-210819T2230Z/
Yuma CO-Cheyenne KS-Sherman KS-
350 PM MDT Thu Aug 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM
MDT/530 PM CDT/ FOR SOUTHEASTERN YUMA COUNTY IN NORTHEASTERN
COLORADO...SOUTHWESTERN CHEYENNE AND NORTHWESTERN SHERMAN COUNTIES IN
NORTHWESTERN KANSAS...
At 349 PM MDT/449 PM CDT/, a severe thunderstorm was located 11 miles
east of Bonny Reservoir, moving north at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
southeastern Yuma County in northeastern Colorado, southwestern
Cheyenne and northwestern Sherman Counties in northwestern Kansas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3955 10181 3954 10203 3989 10212 3990 10176
TIME...MOT...LOC 2149Z 178DEG 24KT 3960 10194
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KMK/JRM271
WWUS53 KGLD 192211
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
511 PM CDT Thu Aug 19 2021
COC125-KSC181-192221-
/O.CAN.KGLD.SV.W.0203.000000T0000Z-210819T2230Z/
Yuma CO-Sherman KS-
511 PM CDT Thu Aug 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN YUMA AND
NORTHWESTERN SHERMAN COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
northwestern Kansas.
LAT...LON 3967 10179 3967 10201 3989 10205 3990 10176
TIME...MOT...LOC 2211Z 178DEG 24KT 3975 10195
$$
KSC023-192230-
/O.CON.KGLD.SV.W.0203.000000T0000Z-210819T2230Z/
Cheyenne KS-
511 PM CDT Thu Aug 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR WEST CENTRAL CHEYENNE COUNTY IN NORTHWESTERN KANSAS...
At 511 PM CDT, a severe thunderstorm was located 7 miles west of St.
Francis, moving north at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
St. Francis.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3967 10179 3967 10201 3989 10205 3990 10176
TIME...MOT...LOC 2211Z 178DEG 24KT 3975 10195
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
KMK/JRMThe office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:49 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 26 min |
| Aug 19, 3:14 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 46 min |
| Aug 19, 4:05 PM MDT | Severe Thunderstorm Warning | GLD | Yuma | 25 min |
| Aug 19, 5:05 PM MDT | Special Weather Statement | GLD | Yuma | 25 min |
| Aug 19, 5:37 PM MDT | Special Weather Statement | GLD | Phillips | 38 min |
| Aug 19, 3:43 PM MDT | Special Weather Statement | GLD | Wallace | 32 min |
| Aug 19, 4:00 PM MDT | Severe Thunderstorm Warning | GLD | Logan, Sherman, Thomas, Wallace | 60 min |
| Aug 19, 4:05 PM MDT | Severe Thunderstorm Warning | GLD | Sherman, Thomas | 55 min |
| Aug 19, 4:34 PM MDT | Special Weather Statement | GLD | Cheyenne | 26 min |
| Aug 19, 5:02 PM MDT | Severe Thunderstorm Warning | GLD | Logan, Sherman, Thomas, Wallace | 58 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 2021Severe 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.