Heavy rain associated with some slow moving thunderstorms brought some isolated flooding in Nemaha County.
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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.
Heavy rain associated with some slow moving thunderstorms brought some isolated flooding in Nemaha County.
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 May 25, 12:10 PM CST, 1 hour 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 110 PM CDT WED MAY 25 2011 ...UPDATE TO AVIATION... && .AVIATION... WIDESPREAD SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS WILL CONTINUE TO EFFECT THE TERMINALS OVER THE NEXT SEVERAL HOURS AS THE UPPER LEVEL LOW SLOWLY SLIDES TO THE EAST. HEAVIER DOWNPOURS HAVE REDUCED VISIBILITIES FOR BRIEF PERIODS OF TIME DOWN TO LIFR. ADDITIONALLY...CEILINGS WILL BOUNCE AROUND BUT MVFR CEILINGS SHOULD PREVAIL. STRONG WINDS WILL QUICKLY MOVE IN BEHIND THE FRONT OVER THE NEXT COUPLE OF HOURS AND HELP PREVENT FOG DEVELOPMENT OVERNIGHT. SKIES SHOULD EVENTUALLY SCATTER OUT TOMORROW MORNING AS THE UPPER LOW MOVES OUT. ANDERSON && .PREV DISCUSSION... /ISSUED 1248 PM CDT WED MAY 25 2011/ LATEST SATELLITE LOOP HAS THE CENTER OF THE UPPER NEAR CENTRAL KANSAS AT 08Z THIS MORNING. 70 KT JET WAS MOVING AROUND THE BASE ACROSS OKLAHOMA. PRECIPITATION CONTINUED MAINLY IN THE DEFORMATION AXIS ACROSS NEBRASKA AND IOWA EARLY THIS MORNING WHILE SCATTERED THUNDERSTORMS WERE MOVING ACROSS PARTS OF CENTRAL KANSAS ON THE EAST SIDE OF THE LOW CIRCULATION AND ON THE LEADING EDGE OF THE DRY SLOT IN WESTERN MISSOURI. SURFACE LOW WAS LOCATED JUST UNDER THE UPPER LOW OFFSET SOME TO THE EAST IN CENTRAL KANSAS. FOR TODAY EXPECT SHOWERS AND ISOLATED THUNDERSTORMS TO BE THE RULE WITH THE UPPER LOW MOVING OVERHEAD THROUGH THE DAY. FOR AREAS ALONG THE NEBRASKA BORDER AND IN NORTH CENTRAL KANSAS THE THREAT OF HEAVY RAINFALL IS NOT LOOKING AS GOOD WITH THE HEAVY RAINFALL POTENTIAL BEING FURTHER NORTH AND EAST. WILL CONTINUE WITH THE FLASH FLOOD WATCH FOR NOW AS CELLS ROTATE BACK TO THE NORTHWEST AND ROTATE NEAR THE CENTER OF THE UPPER LOW. PRESSURE GRADIENT ON THE BACK SIDE OF THE SURFACE LOW LATER THIS MORNING WILL TIGHTEN AND EXPECT TO HIT WIND ADVISORY CRITERIA WITH WINDS NEAR 30 MPH AND SOME GUSTS NEAR 45 MPH FROM LATE MORNING THROUGH THE AFTERNOON AND WILL GO WITH A WIND ADVISORY ALONG AND WEST OF U.S. 81. HIGHS TODAY WILL BE IN THE MID AND UPPER 60S MOST AREAS. WITH THE UPPER LOW MOVING OFF TO THE EAST TONIGHT PRECIPITATION CHANCES WILL BEGIN TO DECREASE AS THE WRAP AROUND PRECIPITATION MOVES OFF TO THE EAST AFTER MIDNIGHT. LOWS TONIGHT WILL DROP BACK INTO THE 40S AND LOW 50S. RIDGING ALOFT FOR THURSDAY WILL YIELD A DRY DAY AHEAD OF THE NEXT APPROACHING TROUGH FROM THE WESTERN U.S. WARM ADVECTION SHOWERS AND THUNDERSTORMS ARE POSSIBLE LATE THURSDAY NIGHT IN THE NORTH CENTRAL AS THE UPPER TROUGH MOVES OUT INTO THE PLAINS. CHANCES OF THUNDERSTORMS WILL CONTINUE ON FRIDAY WITH THE PASSAGE OF THE WAVE AND IN THE THETA AXIS ACROSS EASTERN KANSAS. ISENTROPIC LIFT OVER THE RETURNING WARM FRONT WILL INCREASE PRECIPITATION CHANCES AS WELL. PRECIPITATION CHANCES WILL CONTINUE SATURDAY NIGHT WITH AN EJECTING WAVE OUT OF THE SOUTHWEST AND ALONG A FRONTAL BOUNDARY. SUNDAY THROUGH TUESDAY RIDGE BUILDS WESTWARD INTO THE EASTERN PLAINS THEN CONTINUES TO RETROGRADE WEST INTO THE LATER PART OF NEXT WEEK. 53 && .TOP WATCHES/WARNINGS/ADVISORIES... WIND ADVISORY UNTIL 7 PM CDT THIS EVENING FOR KSZ008-020-034. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 1156 AM CDT WED MAY 25 2011 KSZ008>012-020>024-026-034>040-054>056-058-059-261030- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 1156 AM CDT WED MAY 25 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH CENTRAL AND NORTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. FLOODING WILL CONTINUE ALONG THE SALT CREEK IN OTTAWA COUNTY THROUGH TONIGHT. ALSO FLOODING IS FORECAST ALONG BUFFALO CREEK...THE SOLOMON RIVER NEAR GLASCO AND NEAR CLAY CENTER ON THE REPUBLICAN RIVER. WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH THE AFTERNOON. THE STORMS ARE NOT EXPECTED TO BE SEVERE BUT AREAS OF HEAVY RAIN MAY CAUSE PONDING OF WATER IN LOW LYING AREAS. STRONG GUSTY WINDS NEAR 30 MPH WITH GUSTS NEAR 45 MPH ARE EXPECTED ACROSS NORTH CENTRAL KANSAS THROUGH THE AFTERNOON HOURS...MAINLY ALONG AND WEST OF HIGHWAY 81. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY. FLOODING IS EXPECTED IN MULTIPLE RIVER BASINS IN NORTH CENTRAL AND PARTS OF NORTHEAST KANSAS THIS WEEK. REFER TO THE LATEST RIVER FORECASTS AND STATEMENTS FOR THE LATEST DETAILS. THE NEXT CHANCE FOR THUNDERSTORMS WILL BE LATE THURSDAY NIGHT AND FRIDAY. THEN AGAIN SATURDAY AND SATURDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1049 AM CDT WED MAY 25 2011
KSZ026-040-251615-
DOUGLAS-JEFFERSON-
1049 AM CDT WED MAY 25 2011
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN JEFFERSON AND
NORTHERN DOUGLAS COUNTIES...
THROUGH 1115 AM CDT...A THUNDERSTORM WILL MOVE NORTH AT 25 MPH ACROSS
PORTIONS OF SOUTHEASTERN JEFFERSON AND NORTHERN DOUGLAS COUNTIES.
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THIS STORM IS
CAPABLE OF PRODUCING WINDS UP TO 40 MPH AND HEAVY RAIN. SOME
LOCATIONS AFFECTED INCLUDE LAWRENCE...LECOMPTON...WILLIAMSTOWN AND
PERRY. MOTORISTS ALONG THE KANSAS TURNPIKE BETWEEN MILE MARKERS 195
AND 205 COULD ALSO BE AFFECTED.
&&
LAT...LON 3885 9513 3889 9540 3913 9540 3912 9518
3897 9518 3897 9517 3898 9517 3898 9516
3897 9512
TIME...MOT...LOC 1548Z 177DEG 23KT 3895 9528SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1117 AM CDT WED MAY 25 2011
KSZ026-251645-
JEFFERSON-
1117 AM CDT WED MAY 25 2011
...SIGNIFICANT WEATHER ADVISORY FOR EASTERN JEFFERSON COUNTY...
THROUGH 1145 AM CDT...A STRONG THUNDERSTORM WILL MOVE NORTH AT 35 MPH
ACROSS PORTIONS OF EASTERN JEFFERSON COUNTY. 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
MCLOUTH...OSKALOOSA AND WINCHESTER.
&&
LAT...LON 3910 9518 3907 9535 3932 9536 3934 9517
3916 9517
TIME...MOT...LOC 1617Z 177DEG 21KT 3916 9525The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
One inch of water flowed over 184th road 2 miles west of Sabetha.
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, May 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: 309242.