Alert archive / Kansas / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 23, NWS Wichita, KS

April 12, 1991Harvey County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Apr 12, 1991, 11:40 PM CDT for Harvey County, Kansas. It was in force for 65 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
Apr 12, 1991, 11:40 PM CDT (04:40 UTC)
Expired
Apr 13, 1991, 12:45 AM CDT
In force
65 min
Issued by
NWS Wichita, KS
Area
Whole counties

County Harvey County, KS

What was reported inside it

TimeReportWhereRemark
Apr 13, 12:44 AM CDTHail 2Harvey, 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 00:00Z, 4.7 hours before the alert went out and 188 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 1991-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 392 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 1991-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.193958Sfc1 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
392 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
1502 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

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, Apr 12, 8:39 PM CDT, 3 hours 1 minute before
KSZ009-011-012-014-017-130230-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE WICHITA KS
840 PM CDT FRI APR 12 1991

...LINE OF THUNDERSTORMS STILL MOVING SLOWLY ACROSS CENTRAL KANSAS.

AT 830 PM CDT...RADAR INDICATED A LINE OF THUNDERSTORMS FROM THE NEBRASKA
BORDER NORTHEAST OF CONCORDIA...TO SALINA TO HUTCHINSON...TO PRATT.  TRAILING
THUNDERSTORMS NOT CONNECTED WITH THIS LINE WERE LOCATED SOUTH OF PRATT INTO
OKLAHOMA.  THE STRONGEST STORMS WERE LOCATED EAST OF CONCORDIA AND 20 MILES
SOUTHWEST OF HUTCHINSON.  OTHER INTENSE STORMS CONTINUED IN NORTH CENTRAL
OKLAHOMA.  VERY HEAVY RAIN AND SOME HAIL HAS BEEN REPORTED WITH THE STORM
NEAR HUTCHINSON.  THE SYSTEM WAS MOVING NORTHEAST AT 15 MPH.

*TORNADO WATCH NUMBER 130 COVERS ALL OF CENTRAL KANSAS UNTIL 100 AM CDT.

LEIVERS

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 9:14 PM CDTSevere Thunderstorm WarningICTHarvey61 min
Apr 12, 9:42 PM CDTSevere Thunderstorm WarningICTReno63 min
Apr 12, 9:50 PM CDTSevere Thunderstorm WarningICTKingman55 min
Apr 12, 10:33 PM CDTSevere Thunderstorm WarningICTKingman42 min
Apr 12, 10:47 PM CDTSevere Thunderstorm WarningICTMarion58 min
Apr 12, 11:00 PM CDTTornado WarningICTReno60 min
Apr 12, 11:34 PM CDTFlash Flood WarningICTReno116 min
Apr 12, 11:52 PM CDTSevere Thunderstorm WarningICTReno68 min
Apr 13, 12:03 AM CDTSevere Thunderstorm WarningICTHarper, Kingman57 min
Apr 13, 12:29 AM CDTFlash Flood WarningICTKingman2 hr
Apr 13, 12:55 AM CDTSevere Thunderstorm WarningICTHarvey50 min
Apr 13, 1:06 AM CDTSevere Thunderstorm WarningICTButler, Sedgwick69 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.