A thunderstorm produced wind damage to a farm near Marysville.
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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 TOP wrote it up.
A thunderstorm produced wind damage to a farm near Marysville.
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 22, 2:38 PM CST, 1 hour 7 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 338 PM CDT FRI JUL 22 2011 .DISCUSSION... WATER VAPOR FROM 1845Z SHOWING THE NEXT IN A SERIES OF SHORTWAVE TROUGHS MOVING THROUGH SOUTHERN CO WITH BACKING FLOW/MID LEVEL WARM AIR ADVECTION AND CONVERGENCE ZONE RESIDING ACROSS MAINLY THE NORTHWEST THIRD OF THE COUNTY WARNING AREA (CWA) WHERE A FEW THUNDERSTORMS HAVE PERSISTED. WITH THE CONVERGENCE/INSTABILITY AND APPROACH OF SHORTWAVE TROUGH...WOULD EXPECT TO SEE AT LEAST ISOLATED SHOWERS/THUNDERSTORMS PERSISTING MAINLY IN THIS SAME AREA INTO THE EARLY EVENING BEFORE WEAKENING/DIMINISHING TOWARDS SUNSET...SO WENT WITH A DRY FCST AFTER MIDNIGHT FOR NOW...BUT EVENING SHIFT WILL NEED TO MONITOR TRENDS TO SEE IF AN INCREASE IN LOW LEVEL JET AND THE SHORTWAVE TROUGH SUPPORT A LONGER DURATION OF THE CONVECTION INTO THE NIGHT. COULD SEE LOCALIZED STRONG WINDS WITH SOME OF THE THUNDERSTORMS WITH THE EXPECTED DEEP MIXED LAYER LINGERING INTO THE EARLY EVENING. STRONG MIXING HAS LOWERED DEWPOINTS ACROSS THE SOUTHERN CWA...BUT SHOULD RECOVER OVERNIGHT WITH LOWS STILL EXPECTED TO GENERALLY BE IN THE MIDDLE 70S. ON SATURDAY...APPEARS THERE WILL STILL BE A SLIGHT CHANCE FOR AFTERNOON CONVECTION OVER THE NORTHWEST CWA IN THE MOISTURE AXIS AHEAD OF THE FRONT OVER NEBRASKA...AND ALSO OVER THE FAR EAST/SOUTHEAST CWA WITHIN DEEPER 850 MOISTURE AXIS AND CONVERGENCE ZONE. UNTIL THEN HOWEVER...FLOW SATURDAY VEERS A LITTLE MORE THAN TODAY AND SIMILAR LOW LEVEL THERMAL PROFILES. SHOULD SEE THE HOTTER AIR FURTHER NORTH ACROSS THE CWA THAN TODAY WITH HIGHS FROM NEAR 100 NORTHERN CWA TO THE 104 TO 106 DEGREE RANGE FROM TOPEKA SOUTH AND WEST ALONG THE I-70/TURNPIKE CORRIDORS. HEAT INDICES SHOULD AGAIN COMMONLY BE IN THE 105 TO 110 DEGREE RANGE...SO NO PLANS TO CHANGE EXCESSIVE HEATING WARNING HEADLINES THROUGH THE DAY. 63 FOR SUNDAY...MODELS ARE CONVERGING ON A SOLUTION OF THE FRONTAL BOUNDARY STALLING OUT ALONG OR JUST NORTH OF THE KS RIVER. BECAUSE OF THIS THINK HIGHS ACROSS EAST CENTRAL KS COULD BE UP AROUND 100 ONCE AGAIN. THE UNCERTAINTY IN THE FORECAST COMES FROM CONVECTIVE CHANCES AND RESULTING CLOUD COVER. WITH THE BOUNDARY ACTING AS A FOCUS FOR CONVECTION AND LITTLE INHIBITION...THINK THERE COULD BE SOME SCATTERED THUNDERSTORMS JUST ABOUT ANYWHERE. HOWEVER THINK THE MORE LIKELY TIME WOULD BE DURING THE HEAT OF THE DAY SO CLOUD COVER AND PRECIP MAY NOT DO A LOT TO COOL THE MAXIMUM TEMPS. WITH MOISTURE POOLING BEHIND THE BOUNDARY AND TEMPS AROUND 100 AHEAD OF THE FRONT...HEAT INDICES WILL AGAIN BE BETWEEN 105 AND 110. BECAUSE OF THIS WILL EXTEND THE EXCESSIVE HEAT WARNING THROUGH THE DAY SUNDAY FOR ALL BUT THE FAR NORTHERN COUNTIES WHERE HIGHS AROUND 90 ARE FORECAST. NEVERTHELESS IT IS LIKELY TO STILL BE HUMID ACROSS THESE COUNTIES. AS FOR CONVECTION...DEEP LAYER SHEAR IS WEAK SO WOULD EXPECT POOR ORGANIZATION WITH UPDRAFTS GOING UP AND DOWN. STRONG WIND GUSTS WOULD LIKELY BE THE MAIN CONCERN. THE BOUNDARY OR REMNANT OUTFLOWS ARE EXPECTED TO REMAIN ACROSS THE AREA THROUGH MONDAY. THEREFORE CONTINUED WITH CHANCE POPS FOR SOME DIURNALLY DRIVEN CONVECTION. HIGHS SHOULD BE COOLER WITH LIGHT EASTERLY AND SOUTHEASTERLY SFC WINDS ADVECTING LOWER TO MID 90S INTO THE FORECAST AREA. HOWEVER WITH DEWPOINTS PROGGED TO HOLD IN THE LOWER AND MID 70S...HEAT INDICES COULD STILL BE AROUND 100 AND UNFORTUNATELY TAKING AWAY ANY PERCEIVED RELIEF. TUESDAY AND WEDNESDAY CONTINUE TO LOOK HOT AND DRY WITH THE UPPER RIDGE OVERHEAD AND 850 TEMPS WARMING BACK INTO THE UPPER 20S CELSIUS. MODELS FLATTEN OUT THE UPPER RIDGE BY THE END OF THE WEEK AND TRY TO BRING ANOTHER BOUNDARY INTO NORTHERN KS. THERE SEEMS TO BE ENOUGH AGREEMENT BETWEEN THE GFS AND ECMWF TO INCLUDE SOME 20 TO 30 PERCENT CHANCE POPS FOR THURSDAY THROUGH FRIDAY. GIVEN THE SYNOPTIC PATTERN IS DOES NOT LOOK LIKE TEMPS WILL SEE A SIGNIFICANT COOL DOWN THROUGH THE END OF THE WEEK AND HAVE CONTINUED WITH MID TO UPPER 90S FOR FRIDAY. WOLTERS && .AVIATION... VFR CONDITIONS EXPECTED FOR THE NEXT 24 HRS. AFTERNOON SHOWERS AND THUNDERSTORMS LOOK TO REMAIN NORTH AND WEST OF THE TERMINAL SITES. MHK WILL HAVE THE BEST CHANCE FOR CB BUT LEFT OUT OF THE TAF DUE TO LOW CONFIDENCE. SOUTHERLY WINDS WILL ALSO CONTINUE FOR THE NEXT 24 HRS. ANDERSON && .TOP WATCHES/WARNINGS/ADVISORIES... EXCESSIVE HEAT WARNING UNTIL 7 PM SATURDAY FOR KSZ008>012-020. EXCESSIVE HEAT WARNING UNTIL 7 PM SUNDAY FOR KSZ021>024-026- 034>040-054>056-058-059. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 328 PM CDT FRI JUL 22 2011 KSZ008>012-020>024-026-034>040-054>056-058-059-232030- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 328 PM CDT FRI JUL 22 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH CENTRAL AND NORTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. ISOLATED THUNDERSTORMS WILL OCCUR OVER NORTH CENTRAL AND NORTHEAST KANSAS...MAINLY NORTH OF A LINE FROM HERINGTON TO HIAWATHA. STRONG WINDS COULD OCCUR WITH SOME OF THESE STORMS. AN EXCESSIVE HEAT WARNING REMAINS IN EFFECT THIS AFTERNOON FOR HEAT INDICES AS HIGH AS 110 DEGREES. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY. THE EXCESSIVE HEAT WARNING HAS BEEN EXTENDED THROUGH THE DAY SUNDAY ACROSS EAST CENTRAL KANSAS AND MUCH OF NORTHEAST AND NORTH CENTRAL KANSAS. HEAT INDICES WILL AGAIN RANGE BETWEEN 104 AND 110 DEGREES SATURDAY AND SUNDAY AFTERNOONS. SCATTERED THUNDERSTORMS ARE POSSIBLE SATURDAY NIGHT THROUGH MONDAY. SOME OF THE STRONGER THUNDERSTORMS MAY BE CAPABLE OF STRONG GUSTY WINDS. THERE IS A CHANCE FOR THUNDERSTORMS THURSDAY OVER NORTH CENTRAL AND NORTHEAST KANSAS. THE HOT WEATHER WITH TEMPERATURES AROUND 100 ARE LIKELY TO RETURN FOR TUESDAY THROUGH THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS SHOULD NOT BE NEEDED THIS AFTERNOON OR TONIGHT. WOLTERS
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 354 PM CDT FRI JUL 22 2011 KSZ009-010-222145- MARSHALL-WASHINGTON- 354 PM CDT FRI JUL 22 2011 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MARSHALL AND NORTHEASTERN WASHINGTON COUNTIES... THROUGH 445 PM CDT...A STRONG THUNDERSTORM WILL MOVE NORTHEAST AT 15 MPH ACROSS PORTIONS OF NORTHWESTERN MARSHALL AND NORTHEASTERN WASHINGTON COUNTIES. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THIS STORM IS CAPABLE OF PRODUCING STRONG WINDS OF 40 TO 50 MPH. SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE HANOVER...HOLLENBURG AND BREMEN. && LAT...LON 4000 9661 3977 9682 3980 9706 4001 9701 TIME...MOT...LOC 2054Z 216DEG 13KT 3980 9693
The Topeka radar (KTWX), 100 km away, was scanning. The volume nearest the first event began at 21:43 UTC.
1 thunderstorm wind. Local standard time, as filed.
Around a dozen trees were damaged on the west side of town. Trees were 2 to 3 feet in diameter with 8 to 10 in limbs blocking roadways.
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: 333093.