Alert archive / Kansas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 124, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Aug 12, 2021, 2:14 PM CDT for Jackson County, Kansas. It was in force for 11 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
- Aug 12, 2021, 2:14 PM CDT (19:14 UTC)
- Expired
- Aug 12, 2021, 2:25 PM CDT
- In force
- 11 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Jackson County, KS
The radar
The Topeka radar (KTWX), 69 km from the middle of the area, began a volume at 19:16 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 12:00Z, 7.2 hours before the alert went out and 52 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
- 951 J/kg
- Mixed-layer CIN
- -437 J/kg
- Mixed-layer LCL
- 1729 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted.
937
WUUS53 KTOP 121914
SVRTOP
KSC085-122000-
/O.NEW.KTOP.SV.W.0124.210812T1914Z-210812T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
214 PM CDT Thu Aug 12 2021
The National Weather Service in Topeka has issued a
* Severe Thunderstorm Warning for...
Central Jackson County in northeastern Kansas...
* Until 300 PM CDT.
* At 214 PM CDT, a severe thunderstorm was located near Circleville,
moving east at 25 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...
Holton, Denison, Circleville and Soldier.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
&&
LAT...LON 3942 9557 3942 9559 3936 9559 3947 9601
3957 9599 3957 9557
TIME...MOT...LOC 1914Z 276DEG 22KT 3952 9590
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$1 follow-up statement
299
WWUS53 KTOP 121925
SVSTOP
Severe Weather Statement
National Weather Service Topeka KS
225 PM CDT Thu Aug 12 2021
KSC085-121935-
/O.CAN.KTOP.SV.W.0124.000000T0000Z-210812T2000Z/
Jackson-
225 PM CDT Thu Aug 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL JACKSON COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
LAT...LON 3942 9557 3942 9559 3936 9559 3947 9601
3957 9599 3957 9557
TIME...MOT...LOC 1924Z 276DEG 22KT 3951 9581
$$The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 12:01 PM CDT | Special Weather Statement | TOP | Nemaha | 14 min |
| Aug 12, 12:41 PM CDT | Areal Flood Advisory | TOP | Brown, Nemaha | 2 hr |
| Aug 12, 1:53 PM CDT | Special Weather Statement | TOP | Jackson | 37 min |
| Aug 12, 2:35 PM CDT | Areal Flood Advisory | TOP | Jackson, Nemaha, Pottawatomie | 70 min |
| Aug 12, 4:34 PM CDT | Special Weather Statement | TOP | Ottawa | 26 min |
| Aug 12, 4:41 PM CDT | Severe Thunderstorm Warning | TOP | Ottawa | 34 min |
| Aug 12, 4:50 PM CDT | Areal Flood Advisory | TOP | Ottawa | 3 hr |
| Aug 12, 5:02 PM CDT | Special Weather Statement | TOP | Douglas | 28 min |
| Aug 12, 5:14 PM CDT | Special Weather Statement | TOP | Ottawa | 31 min |
| Aug 12, 5:44 PM CDT | Special Weather Statement | TOP | Ottawa | 31 min |
| Aug 12, 6:54 PM CDT | Special Weather Statement | TOP | Douglas | 36 min |
| Aug 12, 6:59 PM CDT | Severe Thunderstorm Warning | TOP | Douglas, Shawnee | 31 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.