Alert archive / Kansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 49, NWS Topeka, KS

May 11, 2011Cloud County, Ottawa County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at May 11, 2011, 12:00 PM CDT for Cloud County, Ottawa County, Kansas. It was in force for 45 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
May 11, 2011, 12:00 PM CDT (17:00 UTC)
Expired
May 11, 2011, 12:45 PM CDT
In force
45 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cloud County, KS, Ottawa County, KS

The radar

The Grand Island radar (KUEX), 133 km from the middle of the area, began a volume at 16:59 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
May 11, 12:39 PM CDTHAIL 0.753 Nw Minneapolis, KS

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, 5.0 hours before the alert went out and 191 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 2011-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2161 joules per kilogram.LCLLFCEL10008507005003002001001 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 2011-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.19395878Sfc1 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
2161 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
1016 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

Open this sounding in Storm Lab

The text

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

770 
WUUS53 KTOP 111700
SVRTOP
KSC029-143-111745-
/O.NEW.KTOP.SV.W.0049.110511T1700Z-110511T1745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
1200 PM CDT WED MAY 11 2011

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CLOUD COUNTY IN NORTH CENTRAL KANSAS...
  WESTERN OTTAWA COUNTY IN NORTH CENTRAL KANSAS...

* UNTIL 1245 PM CDT

* AT 1155 AM CDT...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
  WEST OF TESCOTT...OR 18 MILES SOUTHWEST OF MINNEAPOLIS...MOVING
  NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ADA...
  MINNEAPOLIS...
  DELPHOS...
  GLASCO...

THIS STORM PRODUCED QUARTER SIZE HAIL AND 50 TO 60 MPH WINDS ACROSS 
LINCOLN AND ELLSWORTH COUNTIES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE FOR LARGE HAIL...DAMAGING WINDS AND VERY HEAVY RAIN IF YOU
ARE IN THE PATH OF THIS STORM. FOR YOUR SAFETY...TAKE COVER INSIDE A
BUILDING NOW.

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

&&

LAT...LON 3951 9794 3941 9742 3896 9782 3895 9793
      3901 9794
TIME...MOT...LOC 1659Z 206DEG 35KT 3904 9800
WIND...HAIL 60MPH 1.00IN

$$

PHILLIPS
2 follow-up statements
944 
WWUS53 KTOP 111725
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1225 PM CDT WED MAY 11 2011

KSC029-143-111745-
/O.CON.KTOP.SV.W.0049.000000T0000Z-110511T1745Z/
OTTAWA-CLOUD-
1225 PM CDT WED MAY 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR SOUTHERN CLOUD AND WESTERN OTTAWA COUNTIES...

AT 1223 PM CDT...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 4 MILES EAST OF ADA...OR 6 MILES WEST OF MINNEAPOLIS...MOVING
NORTH AT 45 MPH.

LOCATIONS IMPACTED INCLUDE...
ADA...DELPHOS AND GLASCO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
SAFETY MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OR A BASEMENT. IF
YOU ARE OUTSIDE...SEEK SHELTER IN A BUILDING AWAY FROM WINDOWS.

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

&&

LAT...LON 3910 9793 3951 9794 3941 9742 3904 9775
TIME...MOT...LOC 1725Z 199DEG 39KT 3917 9780
WIND...HAIL 60MPH 1.00IN

$$

PHILLIPS
197 
WWUS53 KTOP 111738
SVSTOP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1238 PM CDT WED MAY 11 2011

KSC029-143-111745-
/O.CON.KTOP.SV.W.0049.000000T0000Z-110511T1745Z/
OTTAWA-CLOUD-
1238 PM CDT WED MAY 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT
FOR SOUTHERN CLOUD AND NORTHWESTERN OTTAWA COUNTIES...

AT 1232 PM CDT...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 5 MILES SOUTH OF DELPHOS...OR 7 MILES NORTHWEST OF
MINNEAPOLIS...MOVING NORTHEAST AT 40 MPH.

ANOTHER POTENTIALLY SEVERE STORM WAS LOCATED WEST OF 
MILTONVALE...ALSO MOVING NORTH NORTHEAST AT 35 TO 40 MPH.

LOCATIONS IMPACTED INCLUDE...
DELPHOS...
GLASCO.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE FOR LARGE HAIL...DAMAGING WINDS AND VERY HEAVY RAIN IF YOU
ARE IN THE PATH OF THIS STORM. FOR YOUR SAFETY...TAKE COVER INSIDE A
BUILDING NOW.

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

&&

LAT...LON 3922 9793 3951 9794 3941 9742 3913 9767
TIME...MOT...LOC 1737Z 204DEG 35KT 3925 9774
WIND...HAIL 60MPH 1.00IN

$$

PHILLIPS

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 7:44 PM CDTSpecial Weather StatementTOPMorris16 min
May 11, 12:44 PM CDTSevere Thunderstorm WarningTOPClay, Cloud, Ottawa, Republic, Washington31 min
May 11, 12:56 PM CDTSpecial Weather StatementTOPWashington34 min
May 11, 1:04 PM CDTSevere Thunderstorm WarningTOPMarshall, Washington27 min
May 11, 5:12 PM CDTSevere Thunderstorm WarningTOPCoffey, Lyon33 min
May 11, 5:39 PM CDTSpecial Weather StatementTOPLyon36 min
May 11, 6:40 PM CDTSpecial Weather StatementTOPDouglas35 min
May 11, 6:44 PM CDTSpecial Weather StatementTOPBrown31 min
May 11, 6:50 PM CDTSevere Thunderstorm WarningTOPBrown25 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.