Alert archive / Kansas / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 136, NWS Topeka, KS

July 11, 2003Coffey County, Osage County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jul 11, 2003, 8:09 PM CDT for Coffey County, Osage County, Kansas. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 11, 2003, 8:09 PM CDT (01:09 UTC)
Expired: Jul 11, 2003, 8:45 PM CDT
In force: 36 min
Issued by: NWS Topeka, KS
Area: Counties, with a storm outline in the text

Counties Coffey County, KS, Osage County, KS

The radar

The Topeka radar (KTWX), 75 km from the middle of the area, began a volume at 01:08 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 11, 3:45 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 1.2 hours before the alert went out and 62 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: 2885 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1641 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 8.3

Open this sounding in Storm Lab

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 Topeka, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 11, 3:00 PM CDT, 5 hours 9 minutes earlier.

Area forecast discussion, Jul 11, 3:00 PM CDT, 5 hours 9 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TOPEKA KANSAS
3 PM CDT FRI JUL 11 2003

...MAIN CONCERN IS STILL THUNDERSTORM CHANCES TONIGHT...THEN
TEMPERATURES AND PRECIP CHANCES NEXT WEEK...

SFC ANALYSIS AND RADAR SHOWING FRONT PUSHING SOUTHEASTWARD
STRETCHING FROM STJ TO NEAR SLN. CU FIELD DEVELOPING ALONG FRONT
SHOULD INCREASE AS CAP ERODES WITH SCT CONVECTION POSSIBLE THROUGH
THE EVENING AS FRONT PUSHED SOUTHWARD. SOME OF THESE STORMS COULD BE
SEVERE OVER THE EAST CENTRAL THIS EVENING.

MORE CONVECTION WHICH DEVELOPS FURTHER WEST IN THE HIGH PLAINS MAY
ALSO CATCH THE SOUTHERN CWA OVERNIGHT AS POSSIBLE MCS INCREASES OVER
SOUTHERN KS. WILL KEEP LOW POPS ACROSS THE SOUTHERN CWA UNTIL
SUNRISE SATURDAY. DRIER AIR OVERSPREAD THE CWA THROUGH SATURDAY AS
HIGH PRESSURE AND SUBSIDENCE BUILD SOUTHWARD. WILL CONTINUE DRY FCST
THROUGH THE WEEKEND...ALTHOUGH RETURN MOISTURE FLOW AND WAA SUNDAY
NIGHT COULD DEVELOP CONVECTION NOT TOO FAR TO THE WEST OF THE CWA.

WILL KEEP HIGHS ON SATURDAY GENERALLY IN THE MID 80S WITH NORTHEAST
WINDS...THEN RAISE INTO THE LOW TO MID 90S SUNDAY AS SFC WINDS COME
BACK AROUND TO THE SOUTH/SOUTHEAST.

WILL ADD A CHANCE FOR THUNDERSTORMS ON TUESDAY AS MODELS CONTINUE TO
SHOW ANOTHER SHORTWAVE AND FRONT DROP SOUTHEAST INTO THE CWA AROUND
THE NORTHEAST EDGE OF WESTERN RIDGE ALOFT. AS A RESULT LOWERED HIGHS
THROUGH MID WEEK SLIGHTLY. CONTINUED WITH DRY FGST THEN THROUGH
FRIDAY...ALTHOUGH INITIAL NORTHWEST WILL HAVE TO BE WATCHED UNTIL
WARMER AIR ALOFT CAN BECOME REESTABLISHED OVER THE AREA.

.TOP...NONE.

Hazardous weather outlook, Jul 11, 4:42 PM CDT, 3 hours 27 minutes before

KSZ008>012-020>024-026-034>040-054>056-058-059-121000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TOPEKA KS
442 PM CDT FRI JUL 11 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL...NORTHEAST AND
EAST CENTRAL KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH THIS EVENING GENERALLY
ALONG AND SOUTH OF INTERSTATE 70. LARGE HAIL AND DAMAGING WINDS ARE
THE MAIN THREATS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE IS A CHANCE FOR THUNDERSTORMS AGAIN ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS WILL BE NEEDED THROUGH THIS EVENING.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.CRH.NOAA.GOV/TOP  (ALL LOWER CASE)

In the hours before

Local storm report, Jul 11, 7:20 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
720 PM CDT FRI JUL 11 2003

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

0710 PM    9 WSW LONE STAR           KS    .75 INCH HAIL
07/11/03   DOUGLAS

Local storm report, Jul 11, 7:45 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
745 PM CDT FRI JUL 11 2003

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

0710 PM    9 WSW OTTAWA              KS    2.75 INCH HAIL
07/11/03   FRANKLIN

Local storm report, Jul 11, 7:48 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE TOPEKA KS
748 PM CDT FRI JUL 11 2003

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

0745 PM    9 WSW OTTAWA              KS    2.75 INCH HAIL
07/11/03   FRANKLIN

Local storm report, Jul 11, 7:49 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
749 PM CDT FRI JUL 11 2003

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

0748 PM    OTTAWA                    KS    2.75 INCH HAIL
07/11/03   FRANKLIN                        MULTIPLE REPORTS OF
                                           BASEBALL SIZE HAIL.

Local storm report, Jul 11, 7:53 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
753 PM CDT FRI JUL 11 2003

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

0738 PM    OTTAWA                    KS    .88 INCH HAIL
07/11/03   FRANKLIN

0740 PM    OTTAWA                    KS    1 INCH HAIL
07/11/03   FRANKLIN

0745 PM    OTTAWA                    KS    1.75 INCH HAIL
07/11/03   FRANKLIN                        LEAVES STRIPPED OFF TREES

0748 PM    OTTAWA                    KS    2.75 INCH HAIL
07/11/03   FRANKLIN                        WINSHIELDS SHATTERED ON
                                           CARS

Local storm report, Jul 11, 8:06 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
806 PM CDT FRI JUL 11 2003

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

0804 PM    1 S RANTOUL               KS    1 INCH HAIL
07/11/03   FRANKLIN                        REPORTED BY SPOTTER.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 11, 7:08 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Franklin	52 min
Jul 11, 7:42 PM CDT	Severe Thunderstorm Warning	TOP	Franklin	33 min
Jul 11, 8:42 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	33 min
Jul 12, 1:27 AM CDT	Severe Thunderstorm Warning	TOP	Anderson	48 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2003 Every severe thunderstorm warning in 2003

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.