Alert archive / Kansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 2, NWS Topeka, KS

February 27, 20114 counties in Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Feb 27, 2011, 3:07 PM CST for 4 counties in Kansas. It was in force for 23 min. 1 report 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 27, 2011, 3:07 PM CST (21:07 UTC)
Expired
Feb 27, 2011, 3:30 PM CST
In force
23 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

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

The radar

The Topeka radar (KTWX), 91 km from the middle of the area, began a volume at 21:06 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 27, 3:18 PM CSTHAIL 0.886 Se Williamsburg, KS

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 27, 1:12 PM CSTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.1 hours before the alert went out and 61 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 12:00Z on 2011-02-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 12:00Z on 2011-02-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 505 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
382 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
505 m²/s²
0-3 km storm-relative helicity
498 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

520 
WUUS53 KTOP 272107
SVRTOP
KSC003-031-059-139-272130-
/O.NEW.KTOP.SV.W.0002.110227T2107Z-110227T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
307 PM CST SUN FEB 27 2011

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

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

* UNTIL 330 PM CST

* AT 302 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 8 MILES
  SOUTH OF WAVERLY...OR 9 MILES NORTHEAST OF BURLINGTON...MOVING
  NORTHEAST AT 70 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WAVERLY...
  HARRIS...
  WILLIAMSBURG...
  PRINCETON...
  POMONA...
  OTTAWA...
  CENTROPOLIS...

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 160 AND 192.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE FOR LARGE HAIL AS WELL
AS DEADLY CLOUD TO GROUND LIGHTNING.

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

&&

LAT...LON 3822 9552 3835 9575 3873 9536 3873 9532
      3863 9506
TIME...MOT...LOC 2105Z 220DEG 59KT 3832 9558
WIND...HAIL 60MPH 1.00IN

$$
2 follow-up statements
893 
WWUS53 KTOP 272114
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
314 PM CST SUN FEB 27 2011

KSC003-031-059-139-272130-
/O.CON.KTOP.SV.W.0002.000000T0000Z-110227T2130Z/
OSAGE-FRANKLIN-COFFEY-ANDERSON-
314 PM CST SUN FEB 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CST
FOR NORTHWESTERN ANDERSON...NORTHEASTERN COFFEY...FRANKLIN AND
SOUTHEASTERN OSAGE COUNTIES...

AT 311 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED 6 MILES NORTHWEST OF HARRIS...OR 16 MILES NORTHWEST OF
GARNETT...MOVING NORTHEAST AT 70 MPH.

LOCATIONS IMPACTED INCLUDE...
WILLIAMSBURG...PRINCETON...POMONA...OTTAWA AND CENTROPOLIS.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 160 AND 192.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE FOR LARGE HAIL AS WELL
AS DEADLY CLOUD TO GROUND LIGHTNING.

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

&&

LAT...LON 3830 9543 3843 9567 3873 9536 3873 9532
      3863 9506
TIME...MOT...LOC 2114Z 220DEG 59KT 3843 9546
WIND...HAIL 60MPH 1.00IN

$$
841 
WWUS53 KTOP 272127
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
327 PM CST SUN FEB 27 2011

KSC003-031-059-139-272137-
/O.EXP.KTOP.SV.W.0002.000000T0000Z-110227T2130Z/
OSAGE-FRANKLIN-COFFEY-ANDERSON-
327 PM CST SUN FEB 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ANDERSON...
NORTHEASTERN COFFEY...FRANKLIN AND SOUTHEASTERN OSAGE COUNTIES WILL
EXPIRE AT 330 PM CST...

...A SEVERE THUNDERSTORM REMAINS IN EFFECT FOR SOUTHEAST FRANKLIN 
AND NORTHEAST ANDERSON COUNTY...

AT 327 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 330 PM CST.

RADAR INDICATED THAT HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS WERE
STILL POSSIBLE FROM THE THUNDERSTORM.

A SEVERE THUNDERSTORM 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 3830 9543 3843 9567 3873 9536 3873 9532
      3863 9506
TIME...MOT...LOC 2127Z 220DEG 59KT 3859 9528

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 26, 9:30 PM CSTDense Fog AdvisoryTOPAnderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more19 hr
Feb 27, 2:32 PM CSTSevere Thunderstorm WarningTOPLyon, Osage28 min
Feb 27, 3:20 PM CSTSevere Thunderstorm WarningTOPAnderson, Franklin25 min
Feb 27, 3:54 PM CSTAreal Flood AdvisoryTOPAnderson, Coffey, Douglas, Franklin, Jefferson, Osage111 min
Feb 27, 4:04 PM CSTFlash Flood WarningTOPDouglas, Franklin116 min
Feb 27, 5:20 PM CSTSpecial Weather StatementTOPWabaunsee25 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2011Every severe thunderstorm warning in 2011

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.