A warm and humid airmass just ahead of a weak cold frontal boundary produced an isolated severe thunderstorm and damaging wind gust, along the Kansas Oklahoma border on the afternoon of August the 4th, 2010.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ICT wrote it up.
A warm and humid airmass just ahead of a weak cold frontal boundary produced an isolated severe thunderstorm and damaging wind gust, along the Kansas Oklahoma border on the afternoon of August the 4th, 2010.
The local office's own words before the first event, 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 the first event at Aug 4, 2:25 PM CST, 2 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WICHITA KS 325 PM CDT WED AUG 4 2010 .DISCUSSION... FORECAST HIGHLIGHTS FOCUS AROUND HIT-AND-MISS THUNDERSTORM CHANCES THIS EVENING THROUGH LATE THIS WEEK/EARLY WEEKEND...AND CONTINUED ABOVE NORMAL TEMPERATURES THROUGH MOST OF THE NEXT 7 DAYS. PRECIPITATION: DEEP (SURFACE-700 MB) FRONTAL ZONE IS CURRENTLY SLICING SOUTHEAST ACROSS THE FORECAST AREA...STRETCHING ALONG ROUGHLY THE TURNPIKE CORRIDOR. AN ASSOCIATED MID-LEVEL TROUGH IS PROGRESSING ACROSS THE CENTRAL PLAINS. DESPITE A BIT OF A CAP...DEEP/STRONG CONVERGENCE AND CONTINUED HEATING SHOULD ALLOW AT LEAST ISOLATED THUNDERSTORMS TO FORM ALONG THE FRONT...ALONG WITH SOME ELEVATED ACTIVITY LAGGING BEHIND THE FRONT A TAD. THINKING THE BEST FORCING/CONVERGENCE FOR CONVECTION WILL BE OVER NORTHEAST/EASTERN KS. CAPE VALUES OF 2000-3000 J/KG AND MODEST EFFECTIVE SHEAR SHOULD SUPPORT A FEW STRONG TO SEVERE STORMS INTO THIS EVENING. THEREAFTER FOR THE OVERNIGHT HOURS...SOME WEAKLY ORGANIZED ACTIVITY COULD LINGER ACROSS FAR SOUTHERN/SOUTHEAST KS ALONG/NORTH OF 850-700MB BAROCLINIC ZONE/MOISTURE GRADIENT. LINGERING 850-700 MB WEAK TROUGHING IN CONCERT WITH AFTERNOON HEATING SHOULD RESULT IN A FEW MAINLY AFTERNOON/EVENING THUNDERSTORMS...ESPECIALLY OVER SOUTHEAST KS. FOR THURSDAY NIGHT...THINKING AFTERNOON HIGH PLAINS THUNDERSTORM ACTIVITY WILL MOVE EAST/SOUTHEAST...POSSIBLY CLIPPING PORTIONS OF MAINLY CENTRAL AND SOUTH CENTRAL KS THURSDAY NIGHT...WITH THIS ACTIVITY POSSIBLY AFFECTING SOUTH CENTRAL AND SOUTHEAST KS ON FRIDAY. FOR FRIDAY NIGHT...GFS/ECMWF INCREASE 850-700MB WARM/MOIST ADVECTION...WHICH MAY ALLOW FOR A FEW THUNDERSTORMS ACROSS THE AREA...MAINLY WEST OF THE FLINT HILLS. FOR SATURDAY THROUGH MID NEXT WEEK...ANTICIPATING MOSTLY DRY CONDITIONS/LOW PRECIPITATION PROBABILITIES...DUE TO SOUTHERN CONUS MID/UPPER RIDGE BUILDING EAST...ALLOWING WARMER AIR ALOFT TO BUILD OVER THE HEARTLAND. THIS WILL KEEP FRONTS WELL NORTH OF THE AREA...SQUELCHING THUNDERSTORM CHANCES. TEMPERATURES: WILL CONTINUE CURRENT EXCESSIVE HEAT WARNING FOR NOW ACROSS SOUTHERN/SOUTHEAST KS...BUT WITH FRONT SLICING RAPIDLY SOUTHEAST ENVISION EVENING SHIFT CANCELLING IT A BIT EARLY. OTHERWISE...SOMEWHAT COOLER/NEAR NORMAL READINGS ARE ANTICIPATED THURSDAY-FRIDAY...AS MODIFIED CANADIAN AIRMASS SPREADS SOUTHEAST IN WAKE OF CURRENT FRONTAL BOUNDARY. HOWEVER...THE HEAT WILL RETURN BY SATURDAY...AND LIKELY PERSIST THROUGH AT LEAST MID NEXT WEEK...AS MID/UPPER HIGH PRESSURE BUILDS EAST OVER THE SOUTHERN CONUS. 850 MB TEMPERATURES RANGING FROM 25-30C SHOULD RESULT IN AFTERNOON HIGHS CLIMBING INTO THE UPPER 90S TO 100-105F. THINKING HIGHEST TEMPERATURES WILL BE OVER WESTERN PORTIONS OF THE FORECAST AREA DUE TO LOWER DEWPOINTS...WITH HIGHER DEWPOINTS/MORE HUMID CONDITIONS OVER EASTERN KS. AFTERNOON HEAT INDICES WILL LIKELY BE AROUND 102-105F ACROSS THE AREA...WITH LOCALLY HIGHER VALUES. ANTICIPATE MORE HEAT HEADLINES FOR SATURDAY AND BEYOND. ADK && .AVIATION...18Z TAFS KRSL/KSLN/KHUT/KICT/KCNU A SURFACE FRONT IS MOVING SOUTH THROUGH THE FORECAST AREA...WITH WINDS INCREASING FROM THE NORTH A COUPLE HOURS BEHIND THE FRONTAL PASSAGE. ALONG AND AHEAD OF THE FRONT...WINDS ARE MUCH MORE VARIABLE BUT FAIRLY WEAK. THUNDERSTORMS WILL BE POSSIBLE BEFORE SUNSET TODAY IN CENTRAL KANSAS...BUT THEY SHOULD BE ISOLATED WITH THE BETTER FORCING ALONG THE FRONT ITSELF. KCNU HAS THE BEST CHANCE TO SEE THUNDERSTORMS...THEREFORE ADDED A TEMPO GROUP FOR THE MOST LIKELY TIME FRAME FOR THUNDERSTORMS. SOME MODELS HINT AT THUNDERSTORMS OVERNIGHT IN CENTRAL KANSAS...BUT CLEAR SKIES BEHIND THE CONVECTION SEEMS MUCH MORE LIKELY AT THIS POINT. SCHRECK && .PRELIMINARY POINT TEMPS/POPS... WICHITA-KICT 73 91 71 93 / 30 10 20 20 HUTCHINSON 71 91 70 93 / 20 10 20 20 NEWTON 72 91 70 93 / 30 10 10 10 ELDORADO 73 91 70 93 / 30 20 20 10 WINFIELD-KWLD 74 92 72 94 / 30 20 20 20 RUSSELL 68 91 68 93 / 20 10 20 20 GREAT BEND 68 91 69 93 / 20 10 20 20 SALINA 69 91 69 93 / 20 10 10 10 MCPHERSON 70 91 70 93 / 20 10 10 10 COFFEYVILLE 75 91 72 93 / 30 20 20 20 CHANUTE 74 90 70 92 / 30 20 20 20 IOLA 74 89 70 91 / 30 20 20 20 PARSONS-KPPF 75 90 71 92 / 30 20 20 20 && .ICT WATCHES/WARNINGS/ADVISORIES... EXCESSIVE HEAT WARNING UNTIL 9 PM CDT THIS EVENING FOR KSZ070>072-091>096-098>100. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WICHITA KS 344 PM CDT WED AUG 4 2010 KSZ032-033-047>053-067>072-082-083-091>096-098>100-052045- RUSSELL-LINCOLN-BARTON-ELLSWORTH-SALINE-RICE-MCPHERSON-MARION-CHASE- RENO-HARVEY-BUTLER-GREENWOOD-WOODSON-ALLEN-KINGMAN-SEDGWICK-HARPER- SUMNER-COWLEY-ELK-WILSON-NEOSHO-CHAUTAUQUA-MONTGOMERY-LABETTE- 344 PM CDT WED AUG 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL KANSAS... SOUTH CENTRAL KANSAS AND SOUTHEAST KANSAS. .DAY ONE...TONIGHT HEAT INDICES FROM 105 TO 110 DEGREES WILL AFFECT FAR SOUTHERN PORTIONS OF SOUTH CENTRAL AND SOUTHEAST KANSAS INTO THIS EVENING. PLEASE REFER TO THE LATEST EXCESSIVE HEAT WARNING FOR ADDITIONAL DETAILS. ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WILL BE POSSIBLE TONIGHT ACROSS MAINLY SOUTH-CENTRAL AND SOUTHEAST KANSAS. AN ISOLATED SEVERE THUNDERSTORM OR TWO WILL BE POSSIBLE THROUGH THIS EVENING ACROSS FAR SOUTHEAST KANSAS...CAPABLE OF QUARTER SIZE HAIL AND 60 MPH WINDS...ALONG WITH LOCALLY HEAVY RAINFALL. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A FEW THUNDERSTORMS WILL BE POSSIBLE ACROSS MAINLY SOUTH CENTRAL AND SOUTHEAST KANSAS ON THURSDAY...AND ACROSS CENTRAL...SOUTH CENTRAL AND SOUTHEAST KANSAS ON THURSDAY NIGHT AND LINGER INTO FRIDAY. THEY WILL THEN REENTER THE FORECAST FOR FRIDAY NIGHT. STRONG STORMS WILL BE POSSIBLE THROUGH THESE PERIODS ALONG WITH SOME ISOLATED AREAS OF HEAVY RAINFALL. WE WILL GET BACK INTO A WARMING TREND THIS WEEKEND THROUGH AT LEAST MID NEXT WEEK...WITH AFTERNOON THROUGH EARLY EVENING HEAT INDICES RANGING FROM AROUND 102 TO 107 DEGREES EACH DAY. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED THIS EVENING OR TONIGHT DUE TO THE EXPECTED ISOLATED NATURE OF THE SEVERE WEATHER OVER SOUTHEAST KANSAS. && FOR A GRAPHICAL VERSION OF THIS INFORMATION...SEE OUR WEBPAGE AT (LOWERCASE) HTTP://WEATHER.GOV/WICHITA/HWO/HWO.PHP LAWSON/ADK
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 419 PM CDT WED AUG 4 2010 KSZ093-042200- COWLEY- 419 PM CDT WED AUG 4 2010 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR COWLEY COUNTY... AT 417 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR OXFORD...OR 7 MILES WEST OF WINFIELD...AND MOVING EAST AT 15 MPH. DIME SIZE HAIL...AND WINDS TO 50 MPH ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. CARUSO
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 432 PM CDT WED AUG 4 2010 KSZ092-042200- SUMNER- 432 PM CDT WED AUG 4 2010 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR SUMNER COUNTY... AT 427 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM 6 MILES WEST OF GEUDA SPRINGS...OR 13 MILES SOUTHEAST OF WELLINGTON...AND MOVING NORTHEAST AT 15 MPH. DIME SIZE HAIL...AND WINDS TO 50 MPH ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. CARUSO
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 459 PM CDT WED AUG 4 2010 KSZ093-042245- COWLEY- 459 PM CDT WED AUG 4 2010 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR COWLEY COUNTY... AT 454 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR BURDEN...OR 9 MILES EAST OF WINFIELD...AND MOVING EAST AT 15 MPH. WINDS TO 50 MPH ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. CARUSO
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 538 PM CDT WED AUG 4 2010 KSZ093-042315- COWLEY- 538 PM CDT WED AUG 4 2010 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR COWLEY COUNTY... AT 535 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM NEAR CHILOCCO...OR 18 MILES SOUTH OF WINFIELD...AND MOVING SOUTHEAST AT 15 MPH. WINDS TO 50 MPH ARE POSSIBLE WITH THIS STORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. CARUSO
The Wichita radar (KICT), 77 km away, was scanning. The volume nearest the first event began at 22:40 UTC.
1 thunderstorm wind. Local standard time, as filed.
A storm spotter reported some small tree limbs down south of Arkansas City.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2010Every state in 2010This day in weather historyWarnings in Kansas, August 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 256326.