Alert archive / Kansas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 305, NWS Wichita, KS

July 18, 2002Barton County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Jul 18, 2002, 7:39 PM CDT for Barton County, Kansas. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 18, 2002, 7:39 PM CDT (00:39 UTC)
Expired: Jul 18, 2002, 8:45 PM CDT
In force: 66 min
Issued by: NWS Wichita, KS
Area: Counties, with a storm outline in the text

County Barton County, KS

The radar

The Wichita radar (KICT), 141 km from the middle of the area, began a volume at 00:40 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.

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, 0.7 hours before the alert went out and 150 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: 450 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 3038 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

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

177 
WUUS53 KICT 190039
SVRICT
KSC009-190145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WICHITA KS
738 PM CDT THU JUL 18 2002

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BARTON COUNTY IN CENTRAL KANSAS

* UNTIL 845 PM CDT.

* AT 738 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES NORTH OF CLAFLIN.  THE STORM WAS NEARLY
  STATIONARY.

* THE SEVERE THUNDERSTORM WILL BE
  NEAR CLAFLIN AROUND 745 PM...
  AND OVER RURAL AREAS OF BARTON COUNTY...

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING
  DAMAGING WINDS OF 70 TO 80 MILES AN HOUR...

STAY AWAY FROM WINDOWS.

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 BARTON
COUNTY UNTIL 845 PM CDT.

LAT...LON 3862 9849 3863 9858 3853 9861 3851 9850

/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 Jul 18, 3:45 PM CDT, 3 hours 54 minutes earlier.

Area forecast discussion, Jul 18, 3:45 PM CDT, 3 hours 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WICHITA KS
345 PM CDT THU JUL 18 2002

FCST FOCUS ON THUNDERSTORM CHCS TONIGHT...THEN MAINLY ON TEMPS
THROUGH THE WEEKEND WITH PRECIP CHCS/TEMPS NEXT WEEK.

ALL IN ALL WILL STAY WITH GOING FCST TEMPS THROUGH THE WEEKEND WHICH
ARE A BLEND OF FWC/AVN. WILL THEN LEAN TOWARD THE ECMWF IDEA OF
BROAD CYCLONIC FLOW DEVELOPING ACROSS THE NORTHERN PLAINS WITH A
WEAK FRONT POSSIBLE IN THE AREA MON-WEDS.

IN THE SHORT TERM...MID LEVEL TROUGH WILL SAG SOUTH ACROSS THE AREA
TONIGHT. WAA IN THE 850-700MB LEVEL ALONG WITH DAYTIME HEATING AND
MOISTURE/MASS CONVERGENCE WILL AID IN THUNDERSTORMS ACROSS AREAS
MAINLY EAST OF THE TURNPIKE AT LEAST THROUGH MIDNIGHT. 20-30
PERCENT COVERAGE LOOKS REASONABLE AT THE MOMENT. WILL KEEP THE REST
OF THE CWA DRY.

FRIDAY...UPPER HTS WILL BUILD ACROSS THE REGION WHILE MORE ORGANIZED
WEST/NW FLOW WILL AID IN POSSIBLE THUNDERSTORM DEVELOPMENT NEARER
SFC BOUNDARY ACROSS SE NEB/MO. ANY CONVECTION SHOULD SLIDE SE INTO
WESTERN MO. SE KS WILL BE A CLOSE CALL BUT WILL KEEP CONDS DRY.
HIGHS WILL LIKELY BE A FEW DEGREES WARMER THAN TODAY WITH AROUND 100
TO LOW 100S ACROSS CENTRAL KS TO NEAR 100 SOUTH CENTRAL AND MID 90S
SE. HEAT INDICES SHOULD REMAIN NEAR OR BELOW 105F BASED ON CURRENT
MOISTURE PROFILES BY AFTERNOON.

DRY FRIDAY NIGHT...IN FACT DRY THROUGH THE WEEKEND. CURRENT FCST
HIGHS LOOK ON TRACK WHILE HEAT INDICES IN THE 100 TO 105F RANGE WILL
CONTINUE.

EXTENDED...BROAD CYCLONIC FLOW WILL DEVELOP AS HTS LOWER ACROSS THE
NORTHERN PLAINS NEXT WEEK. ECMWF DEPICTION SEEMS MORE REASONABLE AS
OPPOSED TO AVN WHICH FCSTS MUCH STRONGER SHORTWAVES WITHIN THE FLOW.
ALL OF THIS POINTS TOWARD A FRONT SLOWLY SAGGING THROUGH THE AREA
BEGINNING SOMETIME MONDAY WITH SOME THREAT FOR PRECIP THROUGH TUES.
WILL KEEP THE CURRENT GRADUAL COOLING TREND...NEAR MEX GUIDANCE
NUMBERS.

FCSTID =   11
ICT   72 100  73 100 /  20  10  10  10
HUT   72 101  73 101 /  10  10  10  10
EWK   72 100  73 100 /  20  10  10  10
EQA   72  98  73  98 /  20  10  10  10
WLD   72  98  72  98 /  20  10  10  10
RSL   72 102  73 102 /  10  10  10  10
GBD   72 102  73 102 /  10  10  10  10
SLN   72 102  74 102 /  10  10  10  10
MPR   72 101  73 101 /  20  10  10  10
CFV   70  95  73  95 /  30  10  10  10
CNU   70  95  74  95 /  30  10  10  10
K88   70  95  74  95 /  30  10  10  10

.ICT...NONE

In the hours before

Local storm report, Jul 18, 5:03 PM CDT, 2 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA, KANSAS
503 PM CDT THU JUL 18 2002

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0245 PM    5 N EUREKA                KS   1.75 INCH HAIL
07/18/02   GREENWOOD                      LAW ENFORCEMENT REPORTED
                                          GOLFBALL SIZE HAIL NEAR
                                          EUREKA LAKE AREA.

0255 PM    1 N EUREKA                KS   0.75 INCH HAIL
07/18/02   GREENWOOD                      LAW ENFORCEMENT REPORTED
                                          DIME SIZE HAIL ON NORTH
                                          SIDE OF EUREKA.

0430 PM    WONSEVU                   KS   1.50 INCH HAIL
07/18/02   CHASE                          PUBLIC REPORTED PING PONG
                                          SIZE HAIL.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 7:30 PM CDT	Severe Thunderstorm Warning	ICT	Saline	60 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.