Alert archive / Kansas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 95, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Jul 18, 2012, 5:39 PM CDT for Clay County, Kansas. It was in force for 21 min. 4 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
- Jul 18, 2012, 5:39 PM CDT (22:39 UTC)
- Expired
- Jul 18, 2012, 6:00 PM CDT
- In force
- 21 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Clay County, KS
The radar
The Topeka radar (KTWX), 82 km from the middle of the area, began a volume at 22:40 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 |
|---|---|---|---|
| Jul 18, 5:39 PM CDT | HAIL 0.75 | 1 E Clay Center, KS | |
| Jul 18, 5:40 PM CDT | TSTM WND DMG | 3 E Clay Center, KS | ONE INCH DIAMETER TREE LIMBS DOWN...PATIO CHAIRS BLOWN OVER |
| Jul 18, 5:40 PM CDT | HAIL 1 | 3 E Clay Center, KS | MAINLY NICKEL SIZE HAIL WITH SOME QUARTER SIZE. |
| Jul 18, 5:41 PM CDT | HAIL 0.88 | 4 E Clay Center, KS | PRIMARILY NICKEL SIZED HAIL |
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 12:00Z, 10.7 hours before the alert went out and 128 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
- 33 J/kg
- Mixed-layer CIN
- -361 J/kg
- Mixed-layer LCL
- 2023 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
151
WUUS53 KTOP 182239
SVRTOP
KSC027-182300-
/O.NEW.KTOP.SV.W.0095.120718T2239Z-120718T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
539 PM CDT WED JUL 18 2012
THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EAST CENTRAL CLAY COUNTY IN NORTH CENTRAL KANSAS...
* UNTIL 600 PM CDT
* AT 535 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CLAY
CENTER...AND MOVING EAST AT 15 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
CLAY CENTER.
GREEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3945 9697 3927 9696 3927 9719 3942 9716
TIME...MOT...LOC 2239Z 266DEG 12KT 3938 9707
HAIL...1.00IN
WIND...60 MPH
$$
BOWEN2 follow-up statements
908
WWUS53 KTOP 182250
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
550 PM CDT WED JUL 18 2012
KSC027-182300-
/O.CON.KTOP.SV.W.0095.000000T0000Z-120718T2300Z/
CLAY KS-
550 PM CDT WED JUL 18 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
CLAY COUNTY UNTIL 600 PM CDT...
AT 545 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED SOUTH OF
GREEN...AND MOVING EAST AT 15 MPH.
HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL.
SOURCE...PUBLIC.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
GREEN.
IN ADDITION...AT 541 PM CDT...PUBLIC REPORTED QUARTER SIZE HAIL AND
ONE INCH TREE LIMBS DOWN 3 MILES EAST OF CLAY CENTER WITH THIS STORM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3930 9715 3943 9712 3945 9697 3927 9696
TIME...MOT...LOC 2250Z 266DEG 12KT 3938 9702
HAIL...0.88IN
WIND...60 MPH
$$
BOWEN959 WWUS53 KTOP 182256 SVSTOP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 556 PM CDT WED JUL 18 2012 KSC027-182306- /O.EXP.KTOP.SV.W.0095.000000T0000Z-120718T2300Z/ CLAY KS- 556 PM CDT WED JUL 18 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CLAY COUNTY WILL EXPIRE AT 600 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 3930 9715 3943 9712 3945 9697 3927 9696 TIME...MOT...LOC 2256Z 266DEG 12KT 3938 9699 $$ BOWEN
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 1:31 AM CDT | Special Weather Statement | TOP | Cloud | 29 min |
| Jul 18, 5:25 PM CDT | Special Weather Statement | TOP | Clay | 35 min |
| Jul 18, 6:49 PM CDT | Special Weather Statement | TOP | Clay | 26 min |
| Jul 18, 6:53 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Cloud, Ottawa | 37 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 2012Every severe thunderstorm warning in 2012
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.