Alert archive / Kansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 61, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Jun 20, 2021, 8:02 PM CDT for Coffey County, Kansas. It was in force for 28 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
- Jun 20, 2021, 8:02 PM CDT (01:02 UTC)
- Expired
- Jun 20, 2021, 8:30 PM CDT
- In force
- 28 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Coffey County, KS
The radar
The Topeka radar (KTWX), 94 km from the middle of the area, began a volume at 01:01 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 |
|---|---|---|---|
| Jun 20, 8:11 PM CDT | HAIL 1 | 2 Wnw New Strawn, KS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.0 hours before the alert went out and 81 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
- 2316 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 2228 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 8.8
The text
As transmitted.
678
WUUS53 KTOP 210102
SVRTOP
KSC031-210130-
/O.NEW.KTOP.SV.W.0061.210621T0102Z-210621T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
802 PM CDT Sun Jun 20 2021
The National Weather Service in Topeka has issued a
* Severe Thunderstorm Warning for...
Central Coffey County in east central Kansas...
* Until 830 PM CDT.
* At 802 PM CDT, a severe thunderstorm was located 4 miles north of
John Redmond Reservoir, moving east at 35 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Burlington, New Strawn and John Redmond Reservoir.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3824 9589 3836 9588 3838 9551 3826 9551
3826 9552 3816 9552
TIME...MOT...LOC 0102Z 274DEG 28KT 3831 9581
HAIL...1.25IN
WIND...60MPH
$$
Teefey3 follow-up statements
343
WWUS53 KTOP 210111
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
811 PM CDT Sun Jun 20 2021
KSC031-210130-
/O.CON.KTOP.SV.W.0061.000000T0000Z-210621T0130Z/
Coffey-
811 PM CDT Sun Jun 20 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR EAST CENTRAL COFFEY COUNTY...
At 811 PM CDT, a severe thunderstorm was located over New Strawn,
moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
New Strawn and John Redmond Reservoir.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3823 9583 3833 9583 3835 9551 3826 9551
3826 9552 3816 9552
TIME...MOT...LOC 0111Z 283DEG 26KT 3828 9574
HAIL...1.00IN
WIND...60MPH
$$
Teefey410
WWUS53 KTOP 210118
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
818 PM CDT Sun Jun 20 2021
KSC031-210130-
/O.CON.KTOP.SV.W.0061.000000T0000Z-210621T0130Z/
Coffey-
818 PM CDT Sun Jun 20 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR EAST CENTRAL COFFEY COUNTY...
At 818 PM CDT, a severe thunderstorm was located 4 miles east of New
Strawn, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Public reported hail to the size of quarters.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
New Strawn.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3822 9578 3832 9575 3835 9551 3826 9551
3826 9552 3816 9552
TIME...MOT...LOC 0118Z 274DEG 28KT 3828 9567
HAIL...1.00IN
WIND...60MPH
$$
Teefey053
WWUS53 KTOP 210122
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
822 PM CDT Sun Jun 20 2021
KSC031-210132-
/O.EXP.KTOP.SV.W.0061.000000T0000Z-210621T0130Z/
Coffey-
822 PM CDT Sun Jun 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL COFFEY COUNTY
WILL EXPIRE AT 830 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3822 9578 3832 9575 3835 9551 3826 9551
3826 9552 3816 9552
TIME...MOT...LOC 0122Z 274DEG 28KT 3828 9565
$$
TeefeyThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 7:15 PM CDT | Special Weather Statement | TOP | Osage | 15 min |
| Jun 20, 7:19 PM CDT | Severe Thunderstorm Warning | TOP | Osage | 26 min |
| Jun 20, 7:34 PM CDT | Special Weather Statement | TOP | Coffey | 26 min |
| Jun 20, 7:44 PM CDT | Severe Thunderstorm Warning | TOP | Franklin, Osage | 31 min |
| Jun 20, 7:49 PM CDT | Special Weather Statement | TOP | Coffey | 26 min |
| Jun 20, 8:07 PM CDT | Severe Thunderstorm Warning | TOP | Franklin, Osage | 23 min |
| Jun 20, 8:26 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Franklin | 34 min |
| Jun 20, 9:00 PM CDT | Special Weather Statement | TOP | Anderson | 15 min |
| Jun 20, 9:11 PM CDT | Special Weather Statement | TOP | Anderson | 34 min |
| Jun 20, 9:22 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Franklin | 23 min |
| Jun 20, 9:34 PM CDT | Special Weather Statement | TOP | Franklin | 26 min |
| Jun 20, 11:19 PM CDT | Special Weather Statement | TOP | Anderson | 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.