A weak area of low pressure tracked along the Kansas Oklahoma border during the afternoon and evening hours of November 7th, 2011. As this low pressure area moved along, low level moisture increased along a warm frontal boundary across Southern Kansas to produce a squall line of thunderstorms across Southern Kansas.
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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 weak area of low pressure tracked along the Kansas Oklahoma border during the afternoon and evening hours of November 7th, 2011. As this low pressure area moved along, low level moisture increased along a warm frontal boundary across Southern Kansas to produce a squall line of thunderstorms across Southern Kansas. This squall line produced some bowing segments along it, to produce some isolated severe wind gusts and isolated large hail reports up to golfball size.
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 Nov 7, 2:04 PM CST, 1 hour 17 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WICHITA KS 204 PM CST MON NOV 7 2011 .DISCUSSION... MAIN FORECAST UPDATES WILL FOCUS ON POSSIBLE STRONG/SEVERE STORMS FOR LATE AFTERNOON/EVENING...FOLLOWED BY NEXT CHANCE OF RAIN FOR EARLY NEXT WEEK. TONIGHT RICH GULF MOISTURE TRANSPORT AND DEEP ISENTROPIC LIFT WILL CONTINUE TO GENERATE NUMEROUS SHOWERS/EMBEDDED THUNDERSTORMS FOR THIS AFTERNOON/TONIGHT. INSTABILITY/SHEAR COMBO COULD YIELD A FEW STRONG TO POSSIBLY SEVERE THUNDERSTORMS FOR LATE THIS AFTERNOON AND EVENING ACROSS SOUTHERN KANSAS...AS SURFACE WARM FRONT CONTINUES TO MIGRATE SLOWLY NORTHWARD ACROSS OKLAHOMA TOWARDS KS/OK BORDER AREA. LARGE HAIL WOULD BE THE PRIMARY RISK OF SEVERE WEATHER ACTIVITY ALONG WITH SOME POCKETS OF LOCALLY HEAVY RAINFALL. TUE-THU SHOWERS AND EMBEDDED THUNDERSTORMS WILL AFFECT MAINLY SOUTH CENTRAL/SOUTHEAST KANSAS TUESDAY MORNING AHEAD OF THE MAIN WAVE UPPER WAVE...AS IT MOVES OUT INTO THE CENTRAL PLAINS. ASSOCIATED DRY SLOT FROM THE UPPER LEVEL WAVE WILL PUSH INTO SOUTH CENTRAL KANSAS FOR LATE TUESDAY MORNING AND AFTERNOON...THUS TAPERING OFF RAIN CHANCES. SOME WRAP AROUND RAIN SHOWERS WILL CONTINUE TO AFFECT CENTRAL KANSAS FOR TUESDAY AFTERNOON/EVENING. THERE COULD BE A BRIEF TRANSITION TO A RAIN/SNOW MIXTURE TUESDAY EVENING OVER CENTRAL KANSAS BUT NOT EXPECTING ANY ACCUMULATION. OTHERWISE THE UPPER LEVEL SYSTEM WILL EXIT THE AREA STAGE EAST FOR TUESDAY NIGHT WITH RAIN CHANCES COMING TO AN END. SUNNY SKIES WITH COOL AND BREEZY NORTHWEST WINDS WILL PREVAIL OVER THE AREA ON WEDNESDAY. EXTENDED: FRI-MON THE UPPER PATTERN WILL TRANSITION TO ZONAL FLOW ALOFT WITH WESTERLY WINDS IN THE LOW-LEVELS PROVIDING DECENT DOWNSLOPE EFFECTS AND RESULTANT WARMER TEMPERATURES FOR KANSAS. MEANWHILE ECMWF/GFS MODELS SHOW A WEATHER SYSTEM DIGGING INTO THE SOUTHWESTERN STATES FOR SUNDAY/MONDAY PERIOD...BUT HAVE SOME DIFFERENCES ON TIMING AND HOW THE WAVE COMES OUT INTO THE PLAINS. ECMWF MODEL HAS A SHORT WAVE EJECTING FROM THE MAIN TROUGH AXIS INTO KANSAS ON SUNDAY WHILE GFS DROPPED THIS SOLUTION ALL TOGETHER WITH LATEST RUN...AND HOLDS THE MAIN TROUGH BACK ON SUNDAY. CONFIDENCE IS LOW FOR PRECIPITATION CHANCES ON SUNDAY WITH BETTER CHANCES EXPECTED ON MONDAY NIGHT OVER MAINLY SOUTHEAST KANSAS. JAKUB .AVIATION...18Z TAFS KRSL/KSLN/KHUT/KICT/KCNU MAIN AVIATION CONCERNS INCLUDE LOW CEILINGS/VISIBILITIES...AND THUNDERSTORM CHANCES DURING THE AFTERNOON AND EVENING. AN INTENSE UPPER LEVEL TROUGH CONTINUES TO ROTATE INTO THE FOUR CORNERS REGION EARLY THIS AFTERNOON. AHEAD OF THIS SYSTEM...A WARM FRONT WAS DRAPED ACROSS NORTHERN OK AND SOUTHEAST KS. NORTH OF THIS FRONT...ADVECTION OF WARM...MOIST AIR HAS RESULTED IN THE DEVELOPMENT OF WIDESPREAD SHOWERS/EMBEDDED STORMS...AND REDUCED IFR CEILINGS/VISIBILITIES. THE LOWER CLOUD DECK AND PRECIPITATION IS EXPECTED TO PUSH NORTH TOWARDS KRSL AND KSLN DURING THE MID- AFTERNOON HOURS. AS THE WARM FRONT CONTINUES TO SHIFT NORTHWARD LATE THIS AFTERNOON AND EVENING...THERE IS SOME POTENTIAL FOR STRONG THUNDERSTORMS TO PUSH NORTHEAST FROM NORTHERN OKLAHOMA INTO SOUTH-CENTRAL AND SOUTHEAST KANSAS. HOWEVER...CONFIDENCE IS NOT HIGH ENOUGH TO MENTION IN TAFS AT THIS POINT. RAIN IS EXPECTED TO BEGIN TO DECREASE FROM THE WEST TOMORROW MORNING...ESPECIALLY OVER WESTERN TERMINALS. MVFR TO IFR CONDITIONS ARE EXPECTED TO PERSIST...AS THE LOW CLOUD DECK REMAINS IN PLACE. JAM && .PRELIMINARY POINT TEMPS/POPS... WICHITA-KICT 51 53 32 52 / 100 60 30 0 HUTCHINSON 47 47 33 52 / 100 70 30 0 NEWTON 49 51 32 51 / 100 70 30 0 ELDORADO 53 56 31 52 / 100 70 30 0 WINFIELD-KWLD 56 58 34 53 / 100 50 10 0 RUSSELL 37 41 28 49 / 100 70 30 0 GREAT BEND 39 41 30 50 / 100 60 30 0 SALINA 43 44 29 52 / 100 80 30 0 MCPHERSON 45 46 30 51 / 100 80 30 0 COFFEYVILLE 60 65 37 54 / 100 60 10 0 CHANUTE 58 61 35 53 / 100 70 20 0 IOLA 57 60 37 52 / 100 80 30 0 PARSONS-KPPF 60 64 35 53 / 100 60 20 0 && .ICT WATCHES/WARNINGS/ADVISORIES... NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WICHITA KS 305 PM CST MON NOV 7 2011 KSZ032-033-047>053-067>072-082-083-091>096-098>100-082115- 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- 305 PM CST MON NOV 7 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL KANSAS... SOUTH CENTRAL KANSAS AND SOUTHEAST KANSAS. .DAY ONE...TONIGHT PERIODS OF THUNDERSTORMS WILL AFFECT MUCH OF THE REGION FOR TONIGHT. A FEW STRONG TO SEVERE STORMS WILL BE POSSIBLE ALONG AND EAST OF ANTHONY TO NEWTON...TO MARION LINE. LARGE HAIL UP TO THE SIZE OF HALF DOLLARS AND WINDS OF 50 TO 60 MPH WILL BE POSSIBLE FROM SOME OF THE STRONGER STORMS. LOCALLY HEAVY RAINFALL WILL ALSO BE POSSIBLE WITH SOME OF THIS ACTIVITY TONIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORMS WILL CONTINUE ON TUESDAY FOR AREAS MAINLY EAST OF THE KANSAS TURNPIKE. STRONG TO SEVERE STORMS ARE POSSIBLE ACROSS EXTREME SOUTHEAST KANSAS TUESDAY AFTERNOON...WITH QUARTER SIZE HAIL BEING THE MAIN THREAT. SNOW COULD MIX WITH LIGHT RAIN AT TIMES TUESDAY NIGHT OVER CENTRAL KANSAS...NO ACCUMULATION IS EXPECTED. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION MAY BE NEEDED ACROSS SOUTHERN KANSAS THROUGH THE EVENING HOURS. && FOR A GRAPHICAL VERSION OF THIS INFORMATION...SEE OUR WEBPAGE AT (LOWERCASE) HTTP://WEATHER.GOV/WICHITA/HWO/HWO.PHP
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 216 PM CST MON NOV 7 2011 KSZ091-092-072045- HARPER-SUMNER- 216 PM CST MON NOV 7 2011 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR HARPER AND SUMNER COUNTIES... AT 215 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A STRONG THUNDERSTORM 6 MILES NORTHWEST OF ARGONIA...OR 16 MILES NORTHEAST OF ANTHONY...AND MOVING NORTHEAST AT 50 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. HOWERTON
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 253 PM CST MON NOV 7 2011 KSZ083-072115- SEDGWICK- 253 PM CST MON NOV 7 2011 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ADVISORY FOR SOUTHEAST SEDGWICK COUNTY... AT 249 PM CST...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING STRONG THUNDERSTORMS NEAR CLEARWATER...AND MOVING NORTHEAST AT 45 MPH. DIME SIZE HAIL...AND WINDS TO 50 MPH ARE POSSIBLE WITH THESE STORMS.
The Wichita radar (KICT), 6 km away, was scanning. The volume nearest the first event began at 21:20 UTC.
3 hail, 1 flood. Local standard time, as filed.
Very heavy rainfall produced areas of street flooding especially over West Wichita. Vehicles were reported stuck in high water near 21st and Amidon, 37th and Tyler and 14th and Meridian. Also street flooding occurred in Valley Center, Kansas.
The hail was mostly dime to quarter size, but a few were up to golfball size. The hail occurred with 50 mph winds.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2011Every state in 2011This day in weather historyWarnings in Kansas, November 2011
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: 354393, 354248, 354249, 354250.