Again on July 31st heat indices of 105-110 returned to east central, notheast, and north central Kansas. The heat persisted into the August.
Every event with a place to put it; 19 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 TOP wrote it up.
Again on July 31st heat indices of 105-110 returned to east central, notheast, and north central Kansas. The heat persisted into the August.
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 Topeka, KS wrote its last area forecast discussion before the first event at Jul 30, 11:29 AM CST, 31 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 1229 PM CDT SAT JUL 30 2011 ...UPDATE TO AVIATION... .DISCUSSION... SCATTERED THUNDERSTORM ACTIVITY FROM A WEAK UPPER LEVEL WAVE IN CONCERT WITH WEAK WARM AIR ADVECTION OVER A NEARLY STATIONARY FRONT IN SOUTHERN KANSAS AND PRECIPITABLE WATER VALUES AROUND 2 INCHES MAY PERSIST INTO MUCH OF TODAY IN MAINLY EASTERN AREAS AS THE WAVE SINKS SOUTHEAST AND DRIER MID AND UPPER LEVEL AIR MOVES IN. DEPENDING ON ITS PERSISTENCE AND ANY OUTFLOW IT COULD GENERATE...THE SURFACE FRONT MAY AGAIN LINGER IN SOUTHERN AREAS FOR THE AFTERNOON WITH AT LEAST MODERATE CAPE POSSIBLE ALONG AND JUST BEHIND IT AND BRING MAINLY A DOWNBURST WIND THREAT. STORM MOTION VECTORS SLOWLY BECOME MORE NORTHERLY TODAY INTO SUNDAY...AND ADDITIONAL THUNDERSTORM ACTIVITY FROM THE OVERNIGHT INTO SUNDAY SHOULD SLOWLY DIMINISH IN COVERAGE AND NEARNESS TO THE AREA AS FRONTOLYSIS OCCURS AND THE UPPER RIDGE BUILDS OVERHEAD. ENOUGH CLEARING HAS OCCURRED IN THE LIGHT WINDS FOR SOME FOG TO FORM IN CENTRAL AND SOUTHERN NEBRASKA...AND THIS MAY YET DEVELOP IN NORTH CENTRAL KANSAS EARLY THIS MORNING AND PERHAPS AGAIN LATE TONIGHT INTO EARLY SUNDAY MORNING. THE WEAK SURFACE RIDGING BEHIND THE BOUNDARY SHOULD KEEP TEMPS A BIT COOLER THEN EARLIER EXPECTED FOR SUNDAY...BUT DEWPOINTS IN THE UPPER 60S TO MID 70S WILL STILL GIVE RISE TO HEAT INDICES AROUND 105. SURFACE WINDS VEER AND INCREASE FOR MONDAY INTO TUESDAY AS SURFACE LOW PRESSURE CROSSES THE NORTHERN PLAINS AND THEN GREAT LAKES FOR WARMER TEMPS AND SLIGHTLY LOWER DEWPOINTS BUT STILL VERY HOT APPARENT TEMPS. MODELS CONTINUE TO DIFFER A BIT WITH THE COLD FRONTS SURGE INTO KANSAS...AND SMALL PRECIPITATION CHANCES AND SLIGHTLY COOLER TEMPS WILL BE MAINTAINED FOR THE MIDDLE AND LATE WEEK...THOUGH HEAT INDICES AROUND 105 FOR WEDNESDAY STILL SEEM LIKELY. 65 && .AVIATION... MVFR CIGS WILL CONTINUE TO GRADUALLY DISSIPATE THIS AFTERNOON AS DAYTIME HEATING MIXES OUT THE LOWER CLOUDS. SHORT RANGE MODELS INDICATE A CHANCE FOR ISOLATED SHOWERS AND THUNDERSTORMS THROUGH THE AFTERNOON...HOWEVER COVERAGE AND LIKELIHOOD OF DEVELOPMENT OVER TERMINALS IS TOO LOW TO INCLUDE. AMPLE LOW LEVEL MOISTURE PAIRED WITH CALM WINDS WILL ALLOW FOG TO DEVELOP OVERNIGHT. MVFR CIGS WERE PLACED IN AFTER 07Z AND MAY BE ADJUSTED WITH FURTHER GUIDANCE IN THE NEXT ISSUANCE. BOWEN && .TOP WATCHES/WARNINGS/ADVISORIES... EXCESSIVE HEAT WARNING FROM NOON SUNDAY TO 7 PM CDT WEDNESDAY FOR KSZ008>012-020>024-026-034>040-054>056-058-059. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 528 AM CDT SAT JUL 30 2011 KSZ008>012-020>024-026-034>040-054>056-058-059-311030- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 528 AM CDT SAT JUL 30 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH CENTRAL AND NORTHEAST KANSAS. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORMS ARE POSSIBLE FOR THE ENTIRE AREA TODAY...AND ALONG AND SOUTH OF INTERSTATE 70 TONIGHT. WIND GUSTS TO AROUND 60 MPH AND HEAVY DOWNPOURS COULD OCCUR WITH SOME OF THE STRONGER STORMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY. THUNDERSTORMS CHANCES CONTINUE FOR LOCATIONS SOUTH OF INTERSTATE 70 SUNDAY AFTERNOON AND SUNDAY NIGHT. THUNDERSTORM CHANCES EXIST FOR AT LEAST PORTIONS OF THE AREA FROM TUESDAY THROUGH FRIDAY. HEAT INDICES REACHING 103 TO 111 DEGREES ARE EXPECTED FOR THE AFTERNOON HOURS OF SUNDAY THROUGH WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.
The national radar mosaic for the moment the first event began.
19 excessive heat. Local standard time, as filed.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
Heat indices across the county reached to 105-110 as a warm and moist air mass moved into the area for a prolonged period of time.
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, July 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: 335386, 335389, 335160, 335370, 335371, 335373, 335374, 335375, 335376, 335377, 335378, 335379, 335380, 335381, 335382, 335384, 335385, 335390, 335391.