Alert archive / Kansas / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 142, NWS Wichita, KS

July 12, 1991Cowley County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Jul 12, 1991, 3:34 PM CDT for Cowley County, Kansas. It was in force for 56 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 12, 1991, 3:34 PM CDT (20:34 UTC)
Expired
Jul 12, 1991, 4:30 PM CDT
In force
56 min
Issued by
NWS Wichita, KS
Area
Whole counties

County Cowley County, KS

What was reported inside it

TimeReportWhereRemark
Jul 12, 3:52 PM CDTHail 0.75Cowley, KS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.6 hours before the alert went out and 222 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 1991-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 965 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 12:00Z on 1991-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.1939Sfc1 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
965 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1046 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 12, 11:29 AM CDT, 4 hours 5 minutes before
KSZ009-011-012-014-017-120500-

HAZARDOUS WEATHER OUTLOOK FOR SOUTH CENTRAL AND SOUTHEAST KANSAS
NATIONAL WEATHER SERVICE WICHITA KANSAS
1127 AM CDT FRI JUL 12 1991

THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN SOUTH CENTRAL KANSAS:

BUTLER        HARPER        MARION        SUMNER
CHASE         HARVEY        RENO
COWLEY        KINGMAN       SEDGWICK

AND IN SOUTHEAST KANSAS:

ALLEN         CHEROKEE      GREENWOOD     NEOSHO
BOURBON       CRAWFORD      LABETTE       WILSON
CHAUTAUQUA    ELK           MONTGOMERY    WOODSON

SYNOPSIS:  A WEAK FRONTAL SYSTEM EXTENDED FROM NORTHEAST KANSAS TO NEAR
PRATT AT LATE MORNING. THIS WILL BE THE FOCUS FOR THUNDERSTORMS LATE
THIS AFTERNOON AND EVENING. SCATTERED SHOWERS AND THUNDERSTORMS WILL
DEVELOPE AFTER 3 PM...BUT AT THIS TIME THEY ARE NOT EXPECTED TO BE
SEVERE.

SPOTTER ACTIVITATION IS NOT ANTICIPATED.

ROSNER
Special weather statement, Jul 12, 2:42 PM CDT, 52 minutes before
KSZ009-011-012-014-017-122040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE WICHITA KS
241 PM CDT FRI JUL 12 1991

...THUNDERSTORMS WERE BEGINNING TO INCREASE IN INTENSITY ACROSS
SOUTH CENTRAL KANSAS...

AT 231 PM CDT...SCATTERED THUNDERSTORMS...SOME WITH PERIODS OF VERY
HEAVY RAIN...HAD DEVELOPED RAPIDLY AROUND AND SOUTH OF THE WICHITA VICINITY.
ALSO...SHOWERS AND THUNDERSTORMS CONTINUED ACROSS A LARGE PART OF
CENTRAL KANSAS.

THE STRONGEST STORMS WERE LOCATED IN A BAND 15 MILES WIDE FROM KINGMAN
TO 20 MILES SOUTH OF WICHITA...AND FROM RUSSELL TO SOUTH OF HAYS.

THESE STORM WERE PART OF AN AREA OF STORMS 100 MILES WIDE AND CENTERED
ALONG A LINE FROM ARKANSAS CITY TO NORTH OF HAYS.

THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE EAST AT 15 MPH.
.
THE THUNDERSTORMS WILL CONTAIN PERIODS OF HEAVY RAIN...GUSTY WINDS TO
40 MPH AND DEADLY CLOUD TO GROUND LIGHTNING.  IF YOU SEE THE STORMS
APPROACHING YOUR AREA...BE SURE TO GET INDOORS.  STAY AWAY FROM WINDOWS
AND TRY NOT TO USE ELECTICAL EQUIPMENT OR TELEPHONES UNTIL THE STORMS
HAVE PASSED.

THE ATMOSPHERE ACROSS SOUTH CENTRAL AND SOUTEAST KANSAS REMAINS RIPE
FOR CONTINUED DEVELOPMENT OF THUNDERSTORMS.  THESE STORMS WILL BECOME
MORE WIDESPREAD AS THE AFTERNOON PROGRESSES.  BE SURE TO TUNE TO
COMMERICAL TELEVISION AND RADIO...OR LISTEN TO NOAA WEATHER RADIO
FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS ON THE DEVELOPING THUNDERSTORMS
ACROSS THE AREA.

PRESTON
Special weather statement, Jul 12, 3:15 PM CDT, 19 minutes before
KSZ009-011-012-014-017-122110-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
310 PM CDT FRI JUL 12 1991

...THUNDERSTORMS CONTINUE TO INCREASE IN INTENSITY ACROSS SOUTH CENTRAL
KANSAS AND IN THE WICHITA AREA.

AT 3:05 PM THUNDERSTORMS WERE LOCATED OVER EASTERN WICHITA AND PARTS
OF SOUTH WICHITA SOUTHWESTWARD INTO THE SOUTHWEST PART OF THE COUNTY.

SOFT PEA SIZE HAIL WAS REPORTED 15 MILES SOUTHWEST OF WICHITA IN
THE SOUTHWEST CORNER OF SEDGWICK COUNTY.

PERSONS DIRECTLY UNDER THESE THUNDERSTORMS WILL LIKLEY EXPERIENCE
HEAVY RAINS...GUSTY WINDS TO AROUND 30 MPH...POSSIBLE SMALL HAIL
AND DANGEROUS LIGHTNING.

THESE THUNDERSTORMS WERE MOVING EAST AT 15 TO 20 MPH.
ELAND

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 4:52 PM CDTTornado WarningICTElk53 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1991Every severe thunderstorm warning in 1991

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.