Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Topeka, KS

February 28, 2012Anderson County, Coffey County, Franklin County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Feb 28, 2012, 9:58 PM CST for Anderson County, Coffey County, Franklin County, Kansas. It was in force for 47 min. 2 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
Feb 28, 2012, 9:58 PM CST (03:58 UTC)
Expired
Feb 28, 2012, 10:45 PM CST
In force
47 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Anderson County, KS, Coffey County, KS, Franklin County, KS

The radar

The Topeka radar (KTWX), 101 km from the middle of the area, began a volume at 03:58 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

TimeReportWhereRemark
Feb 28, 9:59 PM CSTTSTM WND GST 55Burlington, KS
Feb 28, 10:05 PM CSTTSTM WND DMGLe Roy, KSDELAYED REPORT OF A ROOF PEELED OFF OF A BARN NEAR LE ROY. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Feb 28, 8:10 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.0 hours before the alert went out and 78 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.

Skew-T log-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2012-02-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 37 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2012-02-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 427 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
37 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
482 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
427 m²/s²
0-3 km storm-relative helicity
451 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

986 
WUUS53 KTOP 290358
SVRTOP
KSC003-031-059-290445-
/O.NEW.KTOP.SV.W.0008.120229T0358Z-120229T0445Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
958 PM CST TUE FEB 28 2012

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ANDERSON COUNTY IN EAST CENTRAL KANSAS...
  COFFEY COUNTY IN EAST CENTRAL KANSAS...
  SOUTHEASTERN FRANKLIN COUNTY IN EAST CENTRAL KANSAS...

* UNTIL 1045 PM CST

* AT 953 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR GRIDLEY...OR 9 MILES
  SOUTHWEST OF BURLINGTON...MOVING NORTHEAST AT 75 MPH.

* LOCATIONS IMPACTED INCLUDE...
  JOHN REDMOND RESERVOIR...
  BURLINGTON...
  LE ROY...
  NEW STRAWN...
  WESTPHALIA...
  WAVERLY...
  HARRIS...
  WILLIAMSBURG...
  GARNETT...
  RICHMOND...
  PRINCETON...
  GREELEY...
  LANE...
  RANTOUL...

WINDS TO 58 MPH WERE REPORTED AT THE EUREKA AIRPORT AT 942 PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. IF A TORNADO IS SPOTTED
ACT QUICKLY AND MOVE TO A BASEMENT OR SMALL INTERIOR ROOM.

STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST
SEVERE WEATHER INFORMATION.

&&

LAT...LON 3821 9507 3803 9559 3804 9597 3823 9594
      3844 9557 3843 9551 3847 9551 3872 9506
TIME...MOT...LOC 0357Z 239DEG 67KT 3813 9577
WIND...HAIL 60MPH <.75IN

$$

BLAIR
3 follow-up statements
014 
WWUS53 KTOP 290419
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1019 PM CST TUE FEB 28 2012

KSC031-290429-
/O.CAN.KTOP.SV.W.0008.000000T0000Z-120229T0445Z/
COFFEY-
1019 PM CST TUE FEB 28 2012

...THE SEVERE THUNDERSTORM WARNING FOR COFFEY COUNTY HAS BEEN
CANCELLED...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

&&

LAT...LON 3821 9507 3806 9551 3843 9551 3845 9550
      3872 9506
TIME...MOT...LOC 0419Z 239DEG 67KT 3834 9532

$$

KSC003-059-290445-
/O.CON.KTOP.SV.W.0008.000000T0000Z-120229T0445Z/
ANDERSON-FRANKLIN-
1019 PM CST TUE FEB 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CST
FOR SOUTHERN FRANKLIN AND ANDERSON COUNTIES...

AT 1017 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 4 MILES EAST OF HARRIS...OR
7 MILES WEST OF GARNETT...MOVING NORTHEAST AT 75 MPH.

LOCATIONS IMPACTED INCLUDE...
GARNETT...RICHMOND...PRINCETON...GREELEY...LANE AND RANTOUL.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 180 AND 198.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. IF A TORNADO IS SPOTTED
ACT QUICKLY AND MOVE TO A BASEMENT OR SMALL INTERIOR ROOM.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

&&

LAT...LON 3821 9507 3806 9551 3843 9551 3845 9550
      3872 9506
TIME...MOT...LOC 0419Z 239DEG 67KT 3834 9532
WIND...HAIL 60MPH <.75IN

$$

BLAIR
468 
WWUS53 KTOP 290432
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1032 PM CST TUE FEB 28 2012

KSC003-059-290445-
/O.CON.KTOP.SV.W.0008.000000T0000Z-120229T0445Z/
ANDERSON-FRANKLIN-
1032 PM CST TUE FEB 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CST
FOR SOUTHEASTERN FRANKLIN AND NORTHEASTERN ANDERSON COUNTIES...

AT 1031 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR GREELEY...OR 8 MILES
NORTHEAST OF GARNETT...MOVING NORTHEAST AT 70 MPH.

LOCATIONS IMPACTED INCLUDE...
LANE AND RANTOUL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. IF A TORNADO IS SPOTTED
ACT QUICKLY AND MOVE TO A BASEMENT OR SMALL INTERIOR ROOM.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

&&

LAT...LON 3821 9507 3816 9528 3834 9530 3843 9529
      3865 9507
TIME...MOT...LOC 0432Z 243DEG 61KT 3839 9513
WIND...HAIL 60MPH <.75IN

$$

BLAIR
785 
WWUS53 KTOP 290442
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1042 PM CST TUE FEB 28 2012

KSC003-059-290453-
/O.EXP.KTOP.SV.W.0008.000000T0000Z-120229T0445Z/
ANDERSON-FRANKLIN-
1042 PM CST TUE FEB 28 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN FRANKLIN AND
NORTHEASTERN ANDERSON COUNTIES WILL EXPIRE AT 1045 PM CST...

AT 1043 PM CST...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE
SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO
LONGER SEVERE...THUS THE WARNING WILL EXPIRE AT 1045 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT. STAY ALERT TO THE WEATHER.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

&&

LAT...LON 3821 9507 3816 9528 3834 9530 3843 9529
      3865 9507
TIME...MOT...LOC 0443Z 243DEG 61KT 3833 9483

$$

BLAIR

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 28, 6:04 PM CSTTornado WarningTOPRepublic20 min
Feb 28, 6:50 PM CSTSpecial Weather StatementTOPOttawa25 min
Feb 28, 7:16 PM CSTSevere Thunderstorm WarningTOPClay, Cloud, Washington44 min
Feb 28, 7:41 PM CSTSpecial Weather StatementTOPRepublic34 min
Feb 28, 7:57 PM CSTTornado WarningTOPMorris33 min
Feb 28, 8:11 PM CSTSpecial Weather StatementTOPMarshall34 min
Feb 28, 8:17 PM CSTSpecial Weather StatementTOPWashington28 min
Feb 28, 8:28 PM CSTSevere Thunderstorm WarningTOPLyon, Morris, Wabaunsee47 min
Feb 28, 8:48 PM CSTSpecial Weather StatementTOPMarshall27 min
Feb 28, 9:03 PM CSTSevere Thunderstorm WarningTOPOsage, Shawnee42 min
Feb 28, 9:21 PM CSTSevere Thunderstorm WarningTOPDouglas, Jefferson39 min
Feb 28, 9:53 PM CSTSevere Thunderstorm WarningTOPDouglas, Franklin, Osage, Shawnee36 min
Feb 28, 10:10 PM CSTTornado WarningTOPDouglas14 min
Feb 29, 4:10 AM CSTRed Flag WarningTOPAnderson, Coffey, Dickinson, Lyon, Morris, Ottawa14 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.