Alert archive / Kansas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 39, NWS Topeka, KS
NWS Topeka, KS issued this severe thunderstorm warning at Apr 15, 2012, 12:52 AM CDT for 4 counties in Kansas. It was in force for 38 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 15, 2012, 12:52 AM CDT (05:52 UTC)
- Expired
- Apr 15, 2012, 1:30 AM CDT
- In force
- 38 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Brown County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS
The radar
The Topeka radar (KTWX), 92 km from the middle of the area, began a volume at 05:53 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 14, 5:24 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 5.9 hours before the alert went out and 98 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
- 1788 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 401 m²/s²
- 0-3 km storm-relative helicity
- 443 m²/s²
- Significant tornado parameter
- 5.2
- Supercell composite
- 17.0
The text
As transmitted, in the capitals the NWS used until 2016.
884 WUUS53 KTOP 150552 SVRTOP KSC013-117-131-149-150630- /O.NEW.KTOP.SV.W.0039.120415T0552Z-120415T0630Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TOPEKA KS 1252 AM CDT SUN APR 15 2012 THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN BROWN COUNTY IN NORTHEAST KANSAS... SOUTHEASTERN MARSHALL COUNTY IN NORTHEAST KANSAS... NEMAHA COUNTY IN NORTHEAST KANSAS... NORTH CENTRAL POTTAWATOMIE COUNTY IN NORTHEAST KANSAS... * UNTIL 130 AM CDT * AT 1248 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR LILLIS... AND MOVING NORTHEAST AT 60 MPH. HAZARD...HALF DOLLAR SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. * LOCATIONS IMPACTED INCLUDE... SENECA...SABETHA...VERMILLION...CENTRALIA...BAILEYVILLE... WOODLAWN...ONEIDA...BERN...FAIRVIEW...MORRILL AND HAMLIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 3999 9601 3997 9546 3949 9636 3964 9650 TIME...MOT...LOC 0552Z 231DEG 53KT 3963 9632 HAIL...1.25IN WIND...<50 MPH $$
3 follow-up statements
906
WWUS53 KTOP 150600
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
100 AM CDT SUN APR 15 2012
KSC149-150609-
/O.CAN.KTOP.SV.W.0039.000000T0000Z-120415T0630Z/
POTTAWATOMIE KS-
100 AM CDT SUN APR 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL POTTAWATOMIE
COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 2 AM CDT.
LAT...LON 3997 9546 3956 9624 3957 9628 3969 9641
3999 9601
TIME...MOT...LOC 0559Z 231DEG 53KT 3969 9621
$$
KSC013-117-131-150630-
/O.CON.KTOP.SV.W.0039.000000T0000Z-120415T0630Z/
NEMAHA KS-MARSHALL KS-BROWN KS-
100 AM CDT SUN APR 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
BROWN...SOUTHEASTERN MARSHALL AND NEMAHA COUNTIES UNTIL 130 AM CDT...
AT 1258 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR VERMILLION...
AND MOVING NORTHEAST AT 60 MPH.
HAZARD...HALF DOLLAR 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...
SENECA...SABETHA...CENTRALIA...BAILEYVILLE...WOODLAWN...ONEIDA...
BERN...FAIRVIEW...MORRILL AND HAMLIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT
IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT
OR SMALL INTERIOR ROOM.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3997 9546 3956 9624 3957 9628 3969 9641
3999 9601
TIME...MOT...LOC 0559Z 231DEG 53KT 3969 9621
HAIL...1.25IN
WIND...60 MPH
$$123
WWUS53 KTOP 150611
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
111 AM CDT SUN APR 15 2012
KSC117-150621-
/O.CAN.KTOP.SV.W.0039.000000T0000Z-120415T0630Z/
MARSHALL KS-
111 AM CDT SUN APR 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MARSHALL COUNTY
IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 2 AM CDT.
LAT...LON 3997 9546 3957 9623 3982 9624 3999 9601
TIME...MOT...LOC 0611Z 231DEG 53KT 3980 9603
$$
KSC013-131-150630-
/O.CON.KTOP.SV.W.0039.000000T0000Z-120415T0630Z/
NEMAHA KS-BROWN KS-
111 AM CDT SUN APR 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
BROWN AND NEMAHA COUNTIES UNTIL 130 AM CDT...
AT 107 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CENTRALIA...
AND MOVING NORTHEAST AT 60 MPH.
HAZARD...HALF DOLLAR 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...
SABETHA...WOODLAWN...ONEIDA...BERN...FAIRVIEW...MORRILL AND HAMLIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT
IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT
OR SMALL INTERIOR ROOM.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3997 9546 3957 9623 3982 9624 3999 9601
TIME...MOT...LOC 0611Z 231DEG 53KT 3980 9603
HAIL...1.25IN
WIND...60 MPH
$$563 WWUS53 KTOP 150628 SVSTOP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 128 AM CDT SUN APR 15 2012 KSC013-131-150637- /O.EXP.KTOP.SV.W.0039.000000T0000Z-120415T0630Z/ NEMAHA KS-BROWN KS- 128 AM CDT SUN APR 15 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BROWN AND NEMAHA COUNTIES WILL EXPIRE AT 130 AM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO WATCH REMAINS IN EFFECT. LAT...LON 3997 9546 3957 9623 3982 9624 3999 9601 TIME...MOT...LOC 0627Z 231DEG 53KT 3995 9579 $$
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:24 PM CDT | Tornado Warning | TOP | Clay, Dickinson | 51 min |
| Apr 14, 8:01 PM CDT | Tornado Warning | TOP | Clay, Riley | 29 min |
| Apr 14, 8:43 PM CDT | Tornado Warning | TOP | Dickinson, Morris | 47 min |
| Apr 14, 9:22 PM CDT | Tornado Warning | TOP | Geary, Morris, Wabaunsee | 38 min |
| Apr 14, 11:08 PM CDT | Tornado Warning | TOP | Dickinson | 37 min |
| Apr 14, 11:31 PM CDT | Severe Thunderstorm Warning | TOP | Ottawa | 29 min |
| Apr 14, 11:36 PM CDT | Severe Thunderstorm Warning | TOP | Clay, Dickinson, Geary, Riley | 20 min |
| Apr 14, 11:48 PM CDT | Tornado Warning | TOP | Lyon | 42 min |
| Apr 15, 12:00 AM CDT | Severe Thunderstorm Warning | TOP | Clay, Dickinson, Ottawa | 45 min |
| Apr 15, 12:41 AM CDT | Severe Thunderstorm Warning | TOP | Clay, Dickinson, Geary, Riley | 49 min |
| Apr 15, 12:47 AM CDT | Tornado Warning | TOP | Clay, Dickinson, Geary, Riley | 28 min |
| Apr 15, 1:15 AM CDT | Tornado Warning | TOP | Pottawatomie, Riley | 15 min |
| Apr 15, 1:30 AM CDT | Tornado Warning | TOP | Marshall, Nemaha, Pottawatomie | 30 min |
| Apr 15, 1:38 AM CDT | Severe Thunderstorm Warning | TOP | Clay, Riley, Washington | 37 min |
| Apr 15, 1:51 AM CDT | Severe Thunderstorm Warning | TOP | Jackson, Marshall, Nemaha, Pottawatomie | 34 min |
| Apr 15, 2:13 AM CDT | Severe Thunderstorm Warning | TOP | Marshall, Pottawatomie, Riley | 24 min |
| Apr 15, 3:15 AM CDT | Special Weather Statement | TOP | Wabaunsee | 15 min |
| Apr 15, 3:24 AM CDT | Wind Advisory | TOP | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more | 17 hr |
| Apr 15, 3:30 AM CDT | Special Weather Statement | TOP | Jackson, Shawnee | 30 min |
| Apr 15, 3:59 AM CDT | Special Weather Statement | TOP | Jefferson | 31 min |
| Apr 15, 4:13 AM CDT | Areal Flood Warning | TOP | Nemaha | 3 hr |
| Apr 15, 4:22 AM CDT | River Flood Warning | TOP | Riley | 15 hr |
| Apr 15, 5:06 AM CDT | Special Weather Statement | TOP | Anderson, Coffey, Douglas, Franklin, Osage | 54 min |
| Apr 15, 7:40 AM CDT | Areal Flood Advisory | TOP | Clay, Dickinson, Ottawa | 2 hr |
| Apr 15, 7:53 AM CDT | River Flood Warning | TOP | Clay | 7 hr |
| Apr 15, 8:32 AM CDT | River Flood Warning | TOP | Marshall | 7 hr |
| Apr 15, 9:29 AM CDT | River Flood Warning | TOP | Cloud | 4 hr |
| Apr 15, 9:45 AM CDT | Areal Flood Warning | TOP | Clay | 3 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.