Alert archive / Kansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 207, NWS Goodland, KS
NWS Goodland, KS issued this severe thunderstorm warning at Aug 19, 2021, 6:02 PM CDT for 4 counties in Kansas. It was in force for 58 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 19, 2021, 6:02 PM CDT (23:02 UTC)
- Expired
- Aug 19, 2021, 7:00 PM CDT
- In force
- 58 min
- Issued by
- NWS Goodland, KS
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 1.75 in
- Wind
- 70.0 mph
Counties Logan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS
The radar
The Goodland radar (KGLD), 34 km from the middle of the area, began a volume at 23:02 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, 6:42 PM CDT | HAIL 0.25 | 10 N Winona, KS | BRIEF PERIOD OF PEA SIZE HAIL AND A MEASURED WIND GUST OF 37MPH. |
| Aug 19, 6:50 PM CDT | HAIL 0.88 | 11 S Brewster, KS | RELAYED VIA SOCIAL MEDIA. TIME ESTIMATED BY RADAR. |
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, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.0 hours before the alert went out and 175 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.
896
WUUS53 KGLD 192302
SVRGLD
KSC109-181-193-199-200000-
/O.NEW.KGLD.SV.W.0207.210819T2302Z-210820T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
502 PM MDT Thu Aug 19 2021
The National Weather Service in Goodland has issued a
* Severe Thunderstorm Warning for...
Northeastern Wallace County in west central Kansas...
Southwestern Thomas County in northwestern Kansas...
Northwestern Logan County in west central Kansas...
Southeastern Sherman County in northwestern Kansas...
* Until 600 PM MDT/700 PM CDT/.
* At 501 PM MDT/601 PM CDT/, a severe thunderstorm was located 12
miles northeast of Wallace, or 19 miles northeast of Sharon
Springs, moving northeast at 20 mph.
HAZARD...Golf ball size hail and 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Brewster.
This includes Interstate 70 in Kansas between mile markers 30 and 39.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and 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 3901 10147 3910 10160 3942 10147 3927 10106
TIME...MOT...LOC 2301Z 211DEG 18KT 3907 10148
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
KMK/JRM3 follow-up statements
258
WWUS53 KGLD 192315
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
515 PM MDT Thu Aug 19 2021
KSC109-181-193-199-200000-
/O.CON.KGLD.SV.W.0207.000000T0000Z-210820T0000Z/
Wallace KS-Thomas KS-Logan KS-Sherman KS-
515 PM MDT Thu Aug 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM
MDT/700 PM CDT/ FOR NORTHEASTERN WALLACE...SOUTHWESTERN THOMAS...
NORTHWESTERN LOGAN AND SOUTHEASTERN SHERMAN COUNTIES...
At 514 PM MDT/614 PM CDT/, a severe thunderstorm was located 11 miles
northwest of Winona, or 16 miles south of Brewster, moving northeast
at 20 mph.
HAZARD...Golf ball size hail and 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
Locations impacted include...
Brewster.
This includes Interstate 70 in Kansas between mile markers 30 and 39.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3904 10143 3913 10159 3942 10147 3927 10106
TIME...MOT...LOC 2314Z 211DEG 18KT 3913 10143
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
KMK/JRM847
WWUS53 KGLD 192328
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
528 PM MDT Thu Aug 19 2021
KSC199-192338-
/O.CAN.KGLD.SV.W.0207.000000T0000Z-210820T0000Z/
Wallace KS-
528 PM MDT Thu Aug 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WALLACE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM MDT/midnight CDT/ for
northwestern Kansas.
LAT...LON 3905 10142 3919 10151 3939 10139 3927 10106
TIME...MOT...LOC 2328Z 211DEG 18KT 3919 10138
$$
KSC109-181-193-200000-
/O.CON.KGLD.SV.W.0207.000000T0000Z-210820T0000Z/
Thomas KS-Logan KS-Sherman KS-
528 PM MDT Thu Aug 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM
MDT/700 PM CDT/ FOR SOUTHWESTERN THOMAS...NORTHWESTERN LOGAN AND
SOUTHEASTERN SHERMAN COUNTIES...
At 528 PM MDT/628 PM CDT/, a severe thunderstorm was located 11 miles
northwest of Winona, or 11 miles south of Brewster, moving northeast
at 20 mph.
HAZARD...Golf ball size hail and 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
Locations impacted include...
Brewster.
This includes Interstate 70 in Kansas between mile markers 34 and 39.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM MDT/midnight CDT/ for
northwestern Kansas.
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
A Tornado Watch remains in effect until 1100 PM MDT/midnight CDT/ for
northwestern Kansas.
LAT...LON 3905 10142 3919 10151 3939 10139 3927 10106
TIME...MOT...LOC 2328Z 211DEG 18KT 3919 10138
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
KMK/JRM509
WWUS53 KGLD 192349
SVSGLD
Severe Weather Statement
National Weather Service Goodland KS
649 PM CDT Thu Aug 19 2021
KSC109-181-192359-
/O.CAN.KGLD.SV.W.0207.000000T0000Z-210820T0000Z/
Logan KS-Sherman KS-
649 PM CDT Thu Aug 19 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LOGAN AND
SOUTHEASTERN 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 Tornado Watch remains in effect until midnight CDT for northwestern
Kansas.
LAT...LON 3917 10139 3939 10139 3927 10106 3914 10127
3913 10129
TIME...MOT...LOC 2349Z 211DEG 18KT 3928 10131
$$
KSC193-200000-
/O.CON.KGLD.SV.W.0207.000000T0000Z-210820T0000Z/
Thomas KS-
649 PM CDT Thu Aug 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHWESTERN THOMAS COUNTY...
At 649 PM CDT, a severe thunderstorm was located 6 miles southeast of
Brewster, moving northeast at 20 mph.
HAZARD...Golf ball size hail and 70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
considerable tree damage. Wind damage is also likely to
mobile homes, roofs, and outbuildings.
This severe storm will be near...
Brewster around 700 PM CDT.
This includes Interstate 70 in Kansas between mile markers 36 and 39.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until midnight CDT for northwestern
Kansas.
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
A Tornado Watch remains in effect until midnight CDT for northwestern
Kansas.
LAT...LON 3917 10139 3939 10139 3927 10106 3914 10127
3913 10129
TIME...MOT...LOC 2349Z 211DEG 18KT 3928 10131
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
KMK/JRMThe office that day
Everything else NWS Goodland, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 4:38 PM CDT | Severe Thunderstorm Warning | GLD | Cheyenne, Sherman | 52 min |
| Aug 19, 4:43 PM CDT | Special Weather Statement | GLD | Wallace | 32 min |
| Aug 19, 5:00 PM CDT | Severe Thunderstorm Warning | GLD | Logan, Sherman, Thomas, Wallace | 60 min |
| Aug 19, 5:05 PM CDT | Severe Thunderstorm Warning | GLD | Sherman, Thomas | 55 min |
| Aug 19, 5:34 PM CDT | Special Weather Statement | GLD | Cheyenne | 26 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 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.