Thunderstorms developed in the afternoon heat of May 10th tapping into rich moisture to produce copious amounts of rainfall. As the storms died they produced outflow boundaries.
Every event with a place to put it. 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 ICT wrote it up.
Thunderstorms developed in the afternoon heat of May 10th tapping into rich moisture to produce copious amounts of rainfall. As the storms died they produced outflow boundaries. Two of these boundaries intersected in Sumner County to produce a weak landspout type of tornado. Another weak tornado was reported in Greenwood County. The city of Mulvane experienced flash flooding when one thunderstorm sat over the community and produced nearly 4 inches of rain in an hour. Parts of Southeast Kansas also saw flash flooding as water rose above several roads.
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 May 10, 2:19 PM CST, 28 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE WICHITA KS 319 PM CDT THU MAY 10 2007 .DISCUSSION... MAIN CONCERN TONIGHT WILL BE THUNDERSTORMS IN SRN KS TILL SUNSET...THEN CHANCES AGAIN FRIDAY....AND THEN STARTING AGAIN MONDAY NIGHT. TONIGHT: WIDELY SCATTERED SHRA/TSRA IN SRN KS CONTINUE ON THE NORTH SIDE OF THE UPPER LOW CURRENTLY LOCATED ACROSS SRN OK. 0-3KM INSTABILITY ACROSS SRN KS IS ENOUGH TO PRODUCE A FEW RATHER STOUT UPDRAFTS ESPECIALLY NEAR THE SHEAR AXIS ACROSS SRN KS. MAIN THREAT FROM THE SCATTERED ACTIVITY WILL PROBABLY BE HEAVY RAINFALL AND FLOODING AS THE DEEP LAYER SHEAR IS VERY WEAK...LEADING TO LITTLE OR NO MOVEMENT TO ANY STORM THAT DOES FORM. THE MOIST ENVIRONMENT IN THE LOW LAYERS...COULD ALSO LEAD TO SOME STRETCHING OF THE UPDRAFTS...SO WOULD NOT BE SURPRISED TO SEE SOME WEAK FUNNEL CLOUDS UNTIL 03Z/FRI. FOR THE OVERNIGHT HOURS...WITH THE LOSS OF HEATING...EXPECT THE SHRA ACTIVITY TO DIMINISH CONSIDERABLY. WILL KEEP A SLIGHT POP IN SOUTHEAST KS WHERE SOME WEAK ISENTROPIC LIFT IN SWRN MO COULD MOVE INTO THIS AREA AND PRODUCE SOME ISOLATED SHRA. FRI: UPPER LEVEL DIFFLUENCE ASSOCIATED WITH THE UPPER LOW CREEPING FURTHER SOUTHEAST INTO OK WILL CONTINUE ON FRI AS WELL...BUT A LITTLE FURTHER SOUTH AND EAST THAN TODAY. SO MAIN AREA OF SHOWER AND ISOLATED TSRA SHOULD SHIFT FURTHER TO THE SOUTHEAST. WILL KEEP POPS IN SOUTHEAST KS FOR THIS CHANCE WITH MOST OF THE SHOWERS BEING DIURNALLY DRIVEN. INSTABILITY REMAINS HIGH ENOUGH TO PRODUCE A THUNDER CHANCE....BUT DEEP LAYER SHEAR DOESNT LOOK SUFFICIENT FOR A SEVERE WEATHER CHANCE. LOW LAYERS STILL REMAIN VERY HIGH WITH INSTABILITY BELOW 3KM AROUND 1000 J/KG SO WOULD NOT BE SURPRISED TO SEE SOME WEAK FUNNEL CLOUDS AGAIN TOMORROW. EXPECT MOST OF THE SHOWER ACTIVITY TO END BY FRI EVE AS DIURNAL SHOWERS END AND UPPER LEVEL SYSTEM CONTINUES TO PUSH SOUTH. SAT-SUN: MODELS SIMILAR IN UPPER LEVEL RIDGE FINALLY MOVING INTO THE AREA FOR THE WEEKEND AND ENDING PRECIP CHANCES AS DIFFLUENCE MOVES SOUTH OF THE AREA. CONFIDENCE IS HIGH THAT ABOVE NORMAL TEMPS WILL ALSO ACCOMPANY THE RIDGE AS 850H TEMPS INCREASE INTO THE UPPER TEENS HELPING DRY THINGS OUT. MON-TUE: MEDIUM RANGE MODELS ARE IN PRETTY GOOD AGREEMENT WITH THE RIDGE BREAKING DOWN FOR MON INTO TUE AS AN UPPER LEVEL DISTURBANCE MOVES ACROSS THE NORTHERN PLAINS. THIS NORTHERN PLAINS SYSTEM DRAGS A FRONTAL BOUNDARY ACROSS KS BY MON AFTERNOON. SO WILL INSERT POPS FOR CEN KS MON AFTERNOON AND THE ENTIRE AREA MON NIGHT AS MOISTURE CONVERGENCE INCREASES AHEAD OF THIS BOUNDARY. WILL HAVE TO KEEP AN EYE ON SEVERE WEATHER CHANCES MON EVENING...AS INSTABILITY INCREASES ALONG THE BOUNDARY AND DIRECTIONAL SHEAR INCREASES. 0-6KM SHEAR NOT TOO IMPRESSIVE...BUT INSTABILITY IS PROBABLY ENOUGH FOR A SEVERE CHANCE. WILL ALSO HAVE TO KEEP AN EYE ON HEAVY RAIN POSSIBILITY MON NIGHT AS A POSSIBLE MCS DEVELOPS. FRONTAL BOUNDARY LOOKS TO MAKE SLOW PROGRESS ACROSS KS ON TUE AS WELL...AS BOUNDARY BECOMES MORE PARALLEL TO THE UPPER FLOW. SO WILL KEEP POPS AROUND ON TUE AS WELL. WED-THU: AM CONCERNED THAT MEDIUM RANGE MODELS MAY BE A LITTLE TO FAST WITH TAKING THE SURFACE BOUNDARY SOUTH OF THE AREA FOR WED INTO THU. MAY HAVE TO KEEP POPS ACROSS SRN KS ON WED...AS BOUNDARY MAKES A SLOWER PROGRESSION SOUTH. IF MEDIUM RANGE MODELS CONTINUE THEIR FASTER TREND...COULD SEE POPS YANKED IN LATER FORECAST PACKAGES. .AVIATION...18Z TAFS: RSL/SLN/HUT/ICT/CNU PRIMARY CONCERN IS WIDELY SCATTERED TSRA THAT WILL PERCOLATE OVER CENTRAL...SC & SE KS THROUGHOUT THE AFTERNOON AS DISSIPATING CELLS TO UNLEASH OUTFLOW BOUNDARIES THEREBY ENABLING NEW CELLS TO FORM NEARBY. ISOLATED 1-2SM +TSRA POSSIBLE OVER THE REGION BUT SUCH ISOLATED NATURE DICTATES VCTS ASSIGNMENT AT EACH TAF SITE FROM 18Z-00Z. IN IMMEDIATE VICINITY OF +TSRA...SCT- BKN DECKS 2,000 TO 2,500 TO BE ENCOUNTERED OVER THE AREA. KETCHAM (ROUTINE)/ES (AVIATION) && .PRELIMINARY POINT TEMPS/POPS... WICHITA-KICT 60 84 59 84 / 40 10 10 0 HUTCHINSON 58 84 58 84 / 20 10 0 0 NEWTON 60 83 58 83 / 30 10 0 0 ELDORADO 59 83 59 83 / 40 20 10 0 WINFIELD-KWLD 60 84 59 83 / 60 20 10 10 RUSSELL 56 85 58 85 / 10 0 0 0 GREAT BEND 56 84 58 84 / 20 0 0 0 SALINA 57 84 58 84 / 20 0 0 0 MCPHERSON 58 83 58 83 / 20 10 0 0 COFFEYVILLE 61 82 60 83 / 60 40 10 10 CHANUTE 60 82 60 83 / 40 30 10 10 IOLA 60 82 60 83 / 30 30 10 10 PARSONS-KPPF 60 82 60 83 / 60 30 10 10 && .ICT WATCHES/WARNINGS/ADVISORIES... NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE WICHITA KS 115 PM CDT THU MAY 10 2007 KSZ032-033-047>053-067>072-082-083-091>096-098>100-111915- 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- 115 PM CDT THU MAY 10 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL..SOUTH CENTRAL AND SOUTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT RIVER FLOODING WILL CONTINUE THIS AFTERNOON AND TONIGHT ALONG THE ARKANSAS AND NEOSHO RIVERS. FOR DETAILED INFORMATION...PLEASE REFER TO THE LATEST FLOOD STATEMENTS ISSUED FOR THESE RIVERS. THIS AFTERNOON...WIDELY SCATTERED THUNDERSTORMS WILL PERCOLATE OVER CENTRAL...SOUTH-CENTRAL AND SOUTHEAST KANSAS. A FEW THUNDERSTORMS MAY PRODUCE GUSTS OF 45-50 MPH AND LOCALLY VERY HEAVY RAINS. TONIGHT...THERE IS A SLIGHT OF THUNDERSTORMS OVER AREAS ALONG...AND SOUTHEAST...OF A LINE FROM WINFIELD TO CASSODAY. THESE THUNDERSTORMS ARE NOT FORECAST TO BE EITHER STRONG OR SEVERE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ON FRIDAY...RIVER FLOODING IS LIKELY TO CONTINUE ALONG MOST OF THE ARKANSAS AND NEOSHO RIVERS THROUGH SATURDAY. FOR DETAILED INFORMATION PLEASE REFER TO THE LATEST FLOOD STATEMENTS ISSUED FOR THESE RIVERS. ALSO ON FRIDAY...THERE IS A SLIGHT CHANCE OF THUNDERSTORMS OVER AREAS ALONG...AND EAST...OF A LINE FROM ARKANSAS CITY...TO WINFIELD TO CASSODAY. THESE THUNDERSTORMS ARE NOT FORECAST TO BE EITHER STRONG OR SEVERE. ON MONDAY AFTERNOON...THERE IS A SLIGHT CHANCE OF THUNDERSTORMS OVER RUSSELL AND LINCOLN COUNTIES. ON MONDAY NIGHT...THERE IS A SLIGHT CHANCE THAT THE THUNDERSTORMS WILL SPREAD SOUTHEAST ACROSS THE REMAINDER OF CENTRAL...ALL OF SOUTH-CENTRAL...AND MOST OF SOUTHEAST KANSAS. FROM TUESDAY THROUGH WEDNESDAY...THERE IS A SLIGHT CHANCE OF THUNDERSTORMS OVER MOST AREAS. ON WEDNESDAY NIGHT...THERE IS A SLIGHT CHANCE OF THUNDERSTORMS OVER AREAS PRIMARILY ALONG...AND SOUTH...OF HIGHWAY 400. FROM MONDAY AFTERNOON THROUGH WEDNESDAY NIGHT...IT IS TOO EARLY TO DETERMINE IF THE THUNDERSTORMS WILL BE SEVERE...SO ONE IS ENCOURAGED TO LISTEN FOR LATER HAZARDOUS WEATHER OUTLOOKS...ESPECIALLY THOSE ISSUED EARLY NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED. && FOR A GRAPHICAL VERSION OF THIS INFORMATION...SEE OUR WEBPAGE AT (LOWERCASE) HTTP://WEATHER.GOV/WICHITA/HWO/HWO.PHP
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
206 PM CDT THU MAY 10 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0204 PM HAIL 1 SE HAVANA 37.08N 95.93W
05/10/2007 E0.50 INCH MONTGOMERY KS TRAINED SPOTTER
&&
RECSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 208 PM CDT THU MAY 10 2007 KSZ098-099-101945- CHAUTAUQUA-MONTGOMERY- 208 PM CDT THU MAY 10 2007 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ALERT FOR CHAUTAUQUA AND MONTGOMERY COUNTIES... AT 206 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR PERU...OR NEAR SEDAN...AND MOVING NORTHWEST AT 5 MPH. DIME SIZED HAIL...WINDS AROUND 50 MPH...AND TORRENTIAL RAINS ARE LIKELY FROM THIS THUNDERSTORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THESE STORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. ES
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 245 PM CDT THU MAY 10 2007 KSZ100-102015- LABETTE- 245 PM CDT THU MAY 10 2007 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ALERT FOR LABETTE COUNTY... AT 240 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR MOUND VALLEY...OR 14 MILES NORTHEAST OF COFFEYVILLE...AND MOVING NORTHWEST AT 5 MPH. PENNY TO NICKEL SIZED HAIL...50 MPH WINDS...AND VERY HEAVY RAINS ARE EXPECTED WITH THIS THUNDERSTORM. BE PREPARED TO TAKE SHELTER IN THE EVENT THESE THUNDERSTORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. ES
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA KS 305 PM CDT THU MAY 10 2007 KSZ099-102030- MONTGOMERY- 305 PM CDT THU MAY 10 2007 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ALERT FOR MONTGOMERY COUNTY... AT 300 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS NEAR INDEPENDENCE...OR 13 MILES NORTHWEST OF COFFEYVILLE...AND MOVING NORTHWEST AT 5 MPH. THE STRONG THUNDERSTORMS MAY PRODUCE SHORT-LIVED FUNNEL CLOUDS... PENNY TO NICKEL SIZED HAIL...WINDS AROUND 50 MPH...AND TORRENTIAL ARE EXPECTED FROM THESE THUNDERSTORMS. BE PREPARED TO TAKE SHELTER IN THE EVENT THESE THUNDERSTORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. ES
SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE WICHITA KS 305 PM CDT THU MAY 10 2007 KSZ099-102030- MONTGOMERY- 305 PM CDT THU MAY 10 2007 ...THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A SIGNIFICANT WEATHER ALERT FOR MONTGOMERY COUNTY... AT 300 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS NEAR INDEPENDENCE...OR 13 MILES NORTHWEST OF COFFEYVILLE...AND MOVING NORTHWEST AT 5 MPH. THE STRONG THUNDERSTORMS MAY PRODUCE SHORT-LIVED FUNNEL CLOUDS... PENNY TO NICKEL SIZED HAIL...WINDS AROUND 50 MPH...AND TORRENTIAL RAINS ARE EXPECTED FROM THESE THUNDERSTORMS. BE PREPARED TO TAKE SHELTER IN THE EVENT THE THUNDERSTORMS INTENSIFY AND BECOME SEVERE, OR A WARNING IS ISSUED BY THE NATIONAL WEATHER SERVICE. ES
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WICHITA KS
320 PM CDT THU MAY 10 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0316 PM HEAVY RAIN 2 S SEDAN 37.10N 96.18W
05/10/2007 E4.00 INCH CHAUTAUQUA KS PUBLIC
PUBLIC REPORT RELAYED VIA LAW ENFORCEMENT OF 4 INCHES OF
RAIN WITH THE THUNDERSTORMS THAT MOVED OVER 2 TO 3 MILES
SOUTH OF SEDAN.
&&
CDBThe Tulsa radar (KINX), 118 km away, was scanning. The volume nearest the first event began at 20:45 UTC.
4 flash flood, 2 tornado. Local standard time, as filed.
County 4000 had three locations where water was flowing over it south of Elk City.
A brief tornado in open country that caused no damage.
A rope tornado on the ground for several minutes but caused no damage.
Water was reported over the road just south of Grenola.
A stationary thunderstorm dropped an unofficial 5 inches of rain in a short period of time. This caused rapid rises creeks near Mulvane and flooded businesses in downtown Mulvane.
Thunderstorms produced 3.10 inches of rain near Derby which caused water to rise over 95th Street South and Greenwich Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2007Every state in 2007This day in weather historyThe tornado archive for Kansas, 2007Warnings in Kansas, May 2007
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: 33880, 32285, 32286, 33879, 33877, 33878.