Alert archive / Kansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 14, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Apr 6, 2021, 8:41 PM CDT for Ottawa County, Kansas. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 6, 2021, 8:41 PM CDT (01:41 UTC)
- Expired
- Apr 6, 2021, 9:27 PM CDT
- In force
- 46 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 70.0 mph
County Ottawa County, KS
The radar
The Topeka radar (KTWX), 138 km from the middle of the area, began a volume at 01:41 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.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 1.7 hours before the alert went out and 189 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
- 342 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1225 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
603
WUUS53 KTOP 070141
SVRTOP
KSC143-070245-
/O.NEW.KTOP.SV.W.0014.210407T0141Z-210407T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
841 PM CDT Tue Apr 6 2021
The National Weather Service in Topeka has issued a
* Severe Thunderstorm Warning for...
Western Ottawa County in north central Kansas...
* Until 945 PM CDT.
* At 841 PM CDT, severe thunderstorms were located along a line
extending from 7 miles east of Victor to near Lincoln to 6 miles
northeast of Ellsworth, moving northeast at 55 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Minneapolis, Delphos, Tescott, Culver and Ada.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3931 9793 3931 9764 3896 9764 3896 9793
TIME...MOT...LOC 0141Z 217DEG 46KT 3927 9815 3901 9816 3881 9818
HAIL...0.88IN
WIND...70MPH
$$
Flanagan/Baerg3 follow-up statements
904
WWUS53 KTOP 070152
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
852 PM CDT Tue Apr 6 2021
KSC143-070245-
/O.CON.KTOP.SV.W.0014.000000T0000Z-210407T0245Z/
Ottawa-
852 PM CDT Tue Apr 6 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR WESTERN OTTAWA COUNTY...
At 852 PM CDT, severe thunderstorms were located along a line
extending from 6 miles north of Barnard to 4 miles east of Lincoln to
9 miles northeast of Kanopolis, moving northeast at 35 mph.
HAZARD...70 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Minneapolis, Delphos, Tescott, Culver and Ada.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3931 9793 3931 9764 3896 9764 3896 9793
TIME...MOT...LOC 0152Z 236DEG 32KT 3929 9806 3903 9807 3883 9809
HAIL...0.75IN
WIND...70MPH
$$
Flanagan/Baerg875 WWUS53 KTOP 070211 SVSTOP Severe Weather Statement National Weather Service Topeka KS 911 PM CDT Tue Apr 6 2021 KSC143-070245- /O.CON.KTOP.SV.W.0014.000000T0000Z-210407T0245Z/ Ottawa- 911 PM CDT Tue Apr 6 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT FOR WESTERN OTTAWA COUNTY... At 911 PM CDT, severe thunderstorms were located along a line extending from 7 miles northeast of Barnard to near Ada to 5 miles south of Tescott, moving northeast at 40 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Minneapolis, Delphos, Tescott, Culver and Ada. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3931 9793 3931 9764 3896 9764 3896 9793 TIME...MOT...LOC 0211Z 236DEG 34KT 3924 9793 3912 9787 3892 9790 HAIL...0.75IN WIND...60MPH $$ Flanagan/Baerg
170
WWUS53 KTOP 070227
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
927 PM CDT Tue Apr 6 2021
KSC143-070237-
/O.CAN.KTOP.SV.W.0014.000000T0000Z-210407T0245Z/
Ottawa-
927 PM CDT Tue Apr 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN OTTAWA COUNTY IS
CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds are
still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
north central Kansas.
LAT...LON 3931 9793 3931 9764 3896 9764 3896 9793
TIME...MOT...LOC 0225Z 217DEG 46KT 3938 9779 3926 9773 3906 9776
$$
Flanagan/BaergThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 9:40 PM CDT | Special Weather Statement | TOP | Republic | 35 min |
| Apr 6, 9:44 PM CDT | Special Weather Statement | TOP | Ottawa | 31 min |
| Apr 6, 10:02 PM CDT | Special Weather Statement | TOP | Clay | 43 min |
| Apr 6, 10:28 PM CDT | Special Weather Statement | TOP | Dickinson, Geary, Morris, Riley | 47 min |
| Apr 6, 11:19 PM CDT | Special Weather Statement | TOP | Pottawatomie, Wabaunsee | 41 min |
| Apr 6, 11:32 PM CDT | Special Weather Statement | TOP | Jackson, Osage, Shawnee | 58 min |
| Apr 6, 11:38 PM CDT | Areal Flood Advisory | TOP | Dickinson | 3 hr |
| Apr 6, 11:54 PM CDT | Areal Flood Advisory | TOP | Morris | 3 hr |
| Apr 7, 3:44 AM CDT | Areal Flood Advisory | TOP | Coffey, Lyon | 3 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.