On July 24, Strong Thunderstorms brought heavy rain to portions of northeast Kansas. A county road near Lawrence flooded as a result of the rain.
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The episode as NWS TOP wrote it up.
On July 24, Strong Thunderstorms brought heavy rain to portions of northeast Kansas. A county road near Lawrence flooded as a result of the rain.
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 24, 2:10 PM CST, 2 hours 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 310 PM CDT SAT JUL 24 2010 .DISCUSSION... SHORT TERM (THROUGH SUNDAY)... THIS AFTERNOON AN UPPER LEVEL TROUGH WAS DIGGING EAST SOUTHEAST ACROSS THE MIDWEST AND CENTRAL PLAINS. A SFC COLD FRONT WAS MOVING ACROSS EAST CENTRAL KS...AT 200 PM...THE FRONT WAS LOCATED FROM OSKALOOSA...SOUTHWEST TO BURLINGAME...SOUTHWEST TO DUNLAP. THE FRONT WILL CONTINUE TO PUSH SOUTHEAST ACROSS SOUTHERN COUNTIES OF THE CWA LATE THIS AFTERNOON AND EARLY THIS EVENING. BY 800 PM THE FRONT SHOULD MOVE SOUTHEAST OF THE CWA. STRONG TO SEVERE THUNDERSTORMS MAY DEVELOP IN THE NEXT HOUR OR TWO SOUTH AND EAST OF THE KS TURNPIKE. MLCAPES WERE BETWEEN 3500 AND 4500 J/KG AHEAD OF THE SFC FRONT. THE VERTICAL WIND SHEAR WAS FAIRLY WEAK WITH LESS THAN 30 KTS OF BULK SHEAR FROM THE SFC TO 600 MB. ANY SEVERE THUNDERSTORM THAT DEVELOPS WILL BE A PULSE STORM WITH THE PRIMARY HAZARD BEING WINDS GUSTS TO 60 MPH AND PERHAPS PENNY TO QUARTER SIZE HAIL. ONCE THE FRONT PUSHES SOUTHEAST OF THE CWA EARLY THIS EVENING THE THREAT FOR SEVERE THUNDERSTORMS WILL COME TO AN END. ELEVATED THUNDERSTORMS WILL CONTINUE NORTH OF THE BOUNDARY. THE ONLY HAZARD FROM THESE STORMS WOULD BE LOCALLY HEAVY RAINFALL. THE ZONE OF ISENTROPIC LIFT NORTH OF THE BOUNDARY WILL GRADUALLY SHIFT SOUTHEAST ACROSS THE CWA THROUGH THE EVENING HOURS WITH SCATTERED SHOWERS AND ELEVATED THUNDERSTORMS POSSIBLE ACROSS NORTHEAST AND EAST CENTRAL KS. THE NAM AND RUC SHOW THE ELEVATED THUNDERSTORMS SHIFTING SOUTH OF THE CWA AFTER 3Z. I KEPT CHANCE POPS THROUGH THE NIGHT ALONG AND SOUTH OF I-35 WITH SLIGHT CHANCES AFTER MIDNIGHT NORTH TO I-70. THE FRONT WILL STALL OUT ACROSS SOUTHERN KS OR NORTHERN OK. THERE MAY BE A SLIGHT CHANCE FOR ISOLATED SHOWERS AND THUNDERSTORMS SOUTH OF I-70 ON SUNDAY. THE AIRMASS BEHIND THE FRONT IS COOLER AND DRIER...THUS THE EXCESSIVE HEAT ADVISORY FOR THE SOUTHEAST COUNTIES OF THE CWA WILL BE ALLOWED TO EXPIRE AT 700 PM CDT. SUNDAY WILL BE COOLER WITH HIGHS IN THE MID 80S AND DEWPOINTS IN THE MID 60S. SKIES WILL GRADUALLY CLEAR FROM NORTH TO SOUTH DURING THE DAY. GARGAN LONG TERM (SUNDAY NIGHT THROUGH SATURDAY)... FOR SUNDAY NIGHT INTO MONDAY EXPECT RETURN SOUTHERLY FLOW TO BEGIN OVER WESTERN PORTIONS OF THE CWA AS THE WEAK EFFECTIVE FRONT SLOWLY LIFTS BACK NORTH ON THE WEST SIDE OF SFC HIGH PRESSURE. MODELS INDICATE A PRETTY NICE THETA E GRADIENT ALONG THE WIND SHIFT WITH POTENTIAL FOR A FEW THUNDERSTORMS TO DEVELOP DURING THE MORNING HOURS AS THE LOW LEVEL JET BEGINS TO VEER AND CROSS THE GRADIENT SLIGHTLY. DO NOT EXPECT ANYTHING WIDESPREAD BUT ENOUGH OF A POSSIBILITY TO KEEP LOW END PRECIP CHANCES IN THE FORECAST THROUGH MONDAY MORNING. TEMPS WILL BE RELATIVELY PLEASANT WITH LOWS IN THE UPPER 60S AND HIGHS IN THE 80S. SOME CLOUD COVER IS EXPECTED TO LIMIT HIGH TEMPS A BIT ON MONDAY. DRY CONDITIONS SHOULD PERSIST THROUGH EARLY TUESDAY AFTERNOON. THERE WILL ALSO BE A TEMPERATURE GRADIENT ACROSS THE CWA WITH A GENERAL WARMING TREND THROUGH MID WEEK...BUT THE WARMEST TEMPERATURES BEING ACROSS THE WESTERN CWA. MODELS INDICATE THAT A TROPICAL MOISTURE FEED WILL BEGIN TO NOSE INTO EASTERN KANSAS AND MISSOURI AS THE REMNANTS OF BONNIE MOVE UP THE WEST SIDE OF A SOUTHEASTERN CONUS RIDGE. THIS TROPICAL FEED APPEARS THAT IT WILL PERSIST INTO THURSDAY WITH THE MAIN QUESTION BEING THE WESTERN EXTENT OF THE QUALITY DEEP MOISTURE. HAVE INCLUDED AFTERNOON THUNDERSTORM CHANCES FOR THE EASTERN HALF OF THE CWA WHERE THE BEST MOISTURE SHOULD BE IN PLACE. THIS WILL BE A FAVORABLE SETUP FOR SCATTERED AFTERNOON POPCORN TYPE THUNDERSTORM ACTIVITY...AND COVERAGE WILL NOT LIKELY BE GREAT BUT WOULD EXPECT A FEW STORMS. MORE UNCERTAINTY ENTERS THE FORECAST BY NEXT WEEKEND AS A RELATIVELY WEAK SHORT WAVE TROUGH IS FORECAST TO DROP ACROSS THE NORTHERN PLAINS. CONFIDENCE IN TIMING AND STRENGTH OF THIS WAVE IS LOW WITH MID RANGE MODELS EXHIBITING SIGNIFICANT DIFFERENCES IN THE TIMING AND SOUTHERN EXTENT OF THE ASSOCIATED SURFACE FRONT. FOR NOW HAVE LEFT THE FORECAST DRY WITH RELATIVELY PERSISTENT TEMPERATURES...ESSENTIALLY PLANNING FOR THE FRONT TO HOLD OFF GIVEN THE POSSIBILITY OF RETROGRESSION OF THE SOUTHEASTERN CONUS RIDGE. BARJENBRUCH && .AVIATION... SFC COLD FRONT HAS MOVED SOUTHEAST OF KMHK. THE FRONT SHOULD MOVE THROUGH THE KTOP AND KFOE TAF SITES AROUND 19Z. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE NORTHWEST OF THE FRONT. THE STRONGER THUNDERSTORMS WILL MOST LIKELY DEVELOP ALONG THE FRONT TO THE SOUTHEAST OF THE TAF SITES LATER THIS AFTERNOON. BKN CU WILL DEVELOP ALONG AND NORTHWEST OF THE SFC FRONT. MAY SEE A BRIEF PERIOD BKN MVFR CEILINGS WITH ANY ELEVATED THUNDERSTORMS. DRIER AIR WILL ADVECT SOUTHEAST THIS EVENING...WHICH WILL CAUSE SKIES TO CLEAR. GARGAN && .TOP WATCHES/WARNINGS/ADVISORIES...EXCESSIVE HEAT WARNING UNTIL 7 PM SATURDAY FOR KSZ056-KSZ058-KSZ059. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 346 PM CDT SAT JUL 24 2010 KSZ008>012-020>024-026-034>040-054>056-058-059-252045- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 346 PM CDT SAT JUL 24 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH CENTRAL AND NORTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE POSSIBLE OVER MUCH OF THE OUTLOOK AREA THIS AFTERNOON AND OVERNIGHT. THE BEST CHANCES FOR THUNDERSTORMS WILL BE OVER NORTHEAST AND EAST CENTRAL KANSAS...WITH ISOLATED SEVERE THUNDERSTORMS POSSIBLE SOUTHEAST OF AN OSKALOOSA TO EMPORIA LINE THROUGH THIS EVENING. THE PRIMARY HAZARDS WITH THIS THUNDERSTORM ACTIVITY WILL BE ISOLATED WIND GUSTS TO 60 MPH...AS WELL AS VERY HEAVY RAINFALL AND FLASH FLOODING DUE TO THE SLOW STORM MOVEMENT. HEAT INDEX VALUES WILL REMAIN AT OR ABOVE 105 DEGREES THROUGH EARLY THIS EVENING ACROSS EAST CENTRAL KANSAS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SLIGHT CHANCES FOR THUNDERSTORMS REMAIN IN THE AREA INTO MONDAY... WITH BETTER CHANCES SOUTH OF INTERSTATE 70. ISOLATED AFTERNOON THUNDERSTORMS WILL BE POSSIBLE ACROSS EASTERN KANSAS TUESDAY THROUGH THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THROUGH THIS EVENING...MAINLY SOUTHEAST OF AN OSKALOOSA TO EMPORIA LINE.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 456 PM CDT SAT JUL 24 2010 KSZ056-242230- FRANKLIN- 456 PM CDT SAT JUL 24 2010 ...SIGNIFICANT WEATHER ALERT FOR SOUTHEASTERN FRANKLIN COUNTY... THROUGH 530 PM CDT...A STRONG THUNDERSTORM WILL MOVE NORTHEAST AT 25 MPH ACROSS PORTIONS OF SOUTHEASTERN FRANKLIN COUNTY. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THIS STORM IS CAPABLE OF PRODUCING PENNY SIZE HAIL...WINDS UP TO 40 MPH AND TORRENTIAL RAINFALL. SOME LOCATIONS THAT COULD BE AFFECTED INCLUDE RANTOUL. A SEVERE THUNDERSTORM WATCH IS ALSO IN EFFECT.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The county Sheriff Office reported water over Highway 40 and 600 road, west of Lawrence.
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, July 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: 254247.