Alert archive / Kansas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 34, NWS Wichita, KS

April 11, 2002Harper County, Sumner County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Apr 11, 2002, 8:42 PM CDT for Harper County, Sumner County, Kansas. It was in force for 63 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: Apr 11, 2002, 8:42 PM CDT (01:42 UTC)
Expired: Apr 11, 2002, 9:45 PM CDT
In force: 63 min
Issued by: NWS Wichita, KS
Area: Counties, with a storm outline in the text

Counties Harper County, KS, Sumner County, KS

What was reported inside it

Time	Report	Where	Remark
Apr 11, 8:45 PM CDT	Hail 1	Anthony, KS
Apr 11, 8:47 PM CDT	Thunderstorm Wind 52 E	Argonia, 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 1.7 hours before the alert went out and 196 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 51 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 2302 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 109 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.

000 
WUUS53 KICT 120142
SVRICT
KSC077-191-120245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WICHITA KS
841 PM CDT THU APR 11 2002

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SUMNER COUNTY IN SOUTH CENTRAL KANSAS
  HARPER COUNTY IN SOUTH CENTRAL KANSAS

* UNTIL 945 PM CDT.

* AT 841 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 4 MILES SOUTHWEST
  OF ANTHONY TO 3 MILES EAST OF MAYFIELD...OR ALONG A LINE EXTENDING
  FROM 31 MILES SOUTHEAST OF MEDICINE LODGE TO 27 MILES NORTHWEST OF
  ARKANSAS CITY...MOVING SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORMS WILL BE
  OVER RURAL AREAS OF HARPER COUNTY...

THE SEVERE THUNDERSTORMS ARE CAPABLE OF PRODUCING
  HAIL UP TO THE SIZE OF QUARTERS...
  WINDS UP TO 60 MILES AN HOUR...
  VERY HEAVY RAINFALL...WHICH MAY CAUSE LOCALIZED FLOODING...

THE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL UP TO GOLFBALL SIZE.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

REPEATING...A SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR SUMNER
AND HARPER COUNTIES UNTIL 945 PM CDT.

LAT...LON 3712 9824 3730 9744 3710 9723 3702 9799

/CARUSO

NNNN

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.

NWS Wichita, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 11, 8:15 PM CDT, 27 minutes earlier.

Area forecast discussion, Apr 11, 8:15 PM CDT, 27 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE WICHITA KS
815 PM CDT THU APR 11 2002

TNGT:
SC & ERN 1/2 CNTRL ZONES UPDATED TO EXPIRE SVR WATCH 84. REMOVED
EVE DESCRIPTOR ON TSRA FM SE KS. REST OF FCST INTACT.
ES

.ICT...NONE.

In the hours before

Special weather statement, Apr 11, 8:00 PM CDT, 42 minutes before

KSZ049-051>053-067>070-082-083-091>093-120130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
800 PM CDT THU APR 11 2002

...SEVERE THUNDERSTORM WATCH NUMBER 84 ALLOWED TO EXPIRE AT 8 PM
CDT...

THE SEVERE THUNDERSTORM WATCH THAT WAS IN EFFECT HAS BEEN ALLOWED
TO EXPIRE AS OF 8 PM CDT. WIDELY SCATTERED SEVERE THUNDERSTORMS
WILL PERSIST THROUGH 10 PM ACROSS PORTIONS OF SOUTH CENTRAL
KANSAS...HOWEVER WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 7:00 PM CDT	Severe Thunderstorm Warning	ICT	Cowley	60 min
Apr 11, 7:13 PM CDT	Severe Thunderstorm Warning	ICT	Kingman	47 min
Apr 11, 7:27 PM CDT	Severe Thunderstorm Warning	ICT	Harper, Sumner	78 min
Apr 11, 7:36 PM CDT	Severe Thunderstorm Warning	ICT	Sedgwick	54 min
Apr 11, 8:29 PM CDT	Severe Thunderstorm Warning	ICT	Sedgwick	61 min
Apr 11, 8:58 PM CDT	Severe Thunderstorm Warning	ICT	Butler	62 min
Apr 11, 9:27 PM CDT	Severe Thunderstorm Warning	ICT	Sedgwick	63 min
Apr 11, 9:55 PM CDT	Severe Thunderstorm Warning	ICT	Butler	65 min
Apr 11, 10:07 PM CDT	Severe Thunderstorm Warning	ICT	Cowley	53 min
Apr 11, 10:16 PM CDT	Severe Thunderstorm Warning	ICT	Sumner	59 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2002 Every severe thunderstorm warning in 2002

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.