Thunderstorms developed from east central Kansas northeastward ahead of a low over western Kansas and weak upper level shortwave that dove across east central Kansas during the late afternoon. Strong southwesterly winds at the surface and aloft made for a unidirectional flow regime, and promoted a marginal wind gust and hail threat.
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 TOP wrote it up.
Thunderstorms developed from east central Kansas northeastward ahead of a low over western Kansas and weak upper level shortwave that dove across east central Kansas during the late afternoon. Strong southwesterly winds at the surface and aloft made for a unidirectional flow regime, and promoted a marginal wind gust and hail threat. Only one damaging wind report was received locally, as storms formed over the far eastern portion of the CWA, and quickly exited the region.
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 Sep 18, 2:16 AM CST, 11 hours 24 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TOPEKA KS 316 AM CDT TUE SEP 18 2007 .DISCUSSION... MCV MOVING ACROSS SOUTH CENTRAL KANSAS THIS MORNING WITH EXTENSIVE AREA OF SHOWERS AND THUNDERSTORMS FROM THE TEXAS PANHANDLE INTO SOUTHWEST IOWA. BROAD UPPER TROUGH WAS LOCATED OVER THE ROCKIES WITH A 500 MB HIGH FROM THE LOWER MISSISSIPPI VALLEY INTO THE OHIO VALLEY. NOT MUCH EASTWARD MOVEMENT TO THE CONVECTION THIS MORNING AND EXPECT CURRENT PRECIPITATION TO REMAIN THROUGH THE MID MORNING HOURS WITH ISOLATED TO SCATTERED CONVECTION EAST OF HIGHWAY 77 AS THE MCV MOVES NORTHEAST. MORNING CONVECTION AND CLOUDS IF THEY LINGER INTO THE AFTERNOON HOURS MAY LIKELY AFFECT THE SEVERE POTENTIAL LATER THIS AFTERNOON AND TONIGHT. IF WE ARE ABLE TO GET SOME SUNSHINE THIS AFTERNOON THEN ATMOSPHERE WILL QUICKLY DESTABILIZE. GOOD FORCING WILL OCCUR THIS AFTERNOON AND EVENING AS THE ROCKIES TROUGH LIFTS NORTHEAST INTO THE CENTRAL PLAINS. RIGHT ENTRANCE REGION OF THE 300 MB JET IS SITUATED OVER NORTHEAST KANSAS BY 00Z WEDNESDAY...IN ADDITION PWS INCREASE TO NEAR 2 INCHES WHICH WILL INCREASE HEAVY RAINFALL POTENTIAL ACROSS THE AREA. FRONTAL BOUNDARY NOT FORECAST TO MOVE TOO FAR INTO THE CWA BUT WITH CONVECTION MAY LIKELY PUSH IT FARTHER SOUTH THAN MODELS SUGGEST. LIKE PRIOR FORECASTER MENTION FRONT MAY NOT MAKE IT PAST I-35 BEFORE MOVING NORTHWARD AGAIN ON WEDNESDAY. HAVE MAINTAINED POPS ON WEDNESDAY WITH HIGHEST POPS ALONG AND SOUTH OF I-70 THEN NORTH OF I-70 WEDNESDAY NIGHT. FOR TEMPERATURES TODAY HAVE LOWERED A BIT TO ACCOUNT FOR MORNING RAIN AND CLOUD DEBRIS. 53 && .AVIATION... BAND OF SHOWERS AND THUNDERSTORMS CURRENTLY STRETCHING FROM MARYSVILLE TO JUNCTION CITY TO MCPHERSON KANSAS. EASTWARD PROGRESSION SLOW AS MAJORITY OF MOTION PARALLEL WITH WINDS ALOFT. ANTICIPATE COLD POOL FROM CONVECTION TO AID IN MORE EASTWARD PROGRESSION WITH TIME THIS MORNING...AND ACCOUNTED FOR GOOD PROBABILITY OF THUNDERSTORMS WITHIN THE NEXT COUPLE HOURS AT TAF SITE MHK. LOW LEVEL WIND SHEAR EXISTS AND ACCOUNTED FOR REMAINDER OF PRE-SUNRISE HOURS FOR IN ALL TAF SITES. REFER TO SHORT TERM FORECAST DISCUSSION SECTION FOR ADDITIONAL DETAILS ON CONVECTIVE EVOLUTION AND EXPECTATIONS FOR REMAINDER OF TODAY. BLAIR && .TOP WATCHES/WARNINGS/ADVISORIES...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TOPEKA KS 507 AM CDT TUE SEP 18 2007 KSZ008>012-020>024-026-034>040-054>056-058-059-191015- REPUBLIC-WASHINGTON-MARSHALL-NEMAHA-BROWN-CLOUD-CLAY-RILEY- POTTAWATOMIE-JACKSON-JEFFERSON-OTTAWA-DICKINSON-GEARY-MORRIS- WABAUNSEE-SHAWNEE-DOUGLAS-LYON-OSAGE-FRANKLIN-COFFEY-ANDERSON- 507 AM CDT TUE SEP 18 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL...NORTH CENTRAL AND NORTHEAST KANSAS. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WILL BE SCATTERED ACROSS THE AREA THROUGH THE MORNING HOURS TODAY. THIS AFTERNOON THERE WILL BE A CHANCE FOR ADDITIONAL THUNDERSTORM DEVELOPMENT WITH STORMS CONTINUING THROUGH THE NIGHT. SOME STORMS COULD BE SEVERE LATE THIS AFTERNOON AND EVENING WITH HAIL AND STRONG WINDS THE MAIN HAZARDS. IN ADDITION...LOCALLY HEAVY RAINFALL MAY LEAD TO SOME FLOODING OF LOW LYING AREAS THIS EVENING. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A SLIGHT CHANCE OF THUNDERSTORMS WEDNESDAY AND WEDNESDAY NIGHT ACROSS THE OUTLOOK AREA. .SPOTTER INFORMATION STATEMENT... SPOTTERS MAY BE NEEDED THIS AFTERNOON OR TONIGHT.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TOPEKA KS
1002 AM CDT TUE SEP 18 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0915 AM HEAVY RAIN 6 S ADA 39.06N 97.89W
09/18/2007 M2.10 INCH OTTAWA KS LAW ENFORCEMENT
RAINFALL MEASURED AT TESCOTT BUT SHERIFF REPORTED WATER
FROM FIELD RUNOFF OVER SOME ROADS AROUND ADA.
&&
BNSIGNIFICANT WEATHER ALERT NATIONAL WEATHER SERVICE TOPEKA KS 234 PM CDT TUE SEP 18 2007 KSZ054>056-058-059-182015- ANDERSON-COFFEY-FRANKLIN-LYON-OSAGE- 234 PM CDT TUE SEP 18 2007 THROUGH 315 PM CDT...A LINE OF CLUSTERED THUNDERSTORMS WILL MOVE NORTHEAST AT 50 MPH ACROSS PORTIONS OF OSAGE...LYON...FRANKLIN... COFFEY AND ANDERSON COUNTIES. NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THESE CLUSTER OF STORMS ARE CAPABLE OF PRODUCING STRONG WINDS OF 40 TO 50 MPH...TORRENTIAL RAINFALL AND FREQUENT LIGHTNING. SOME COMMUNITIES THAT COULD BE AFFECTED INCLUDE BURLINGTON...JOHN REDMOND RESERVOIR...NEOSHO RAPIDS...READING...WAVERLY...MELVERN LAKE...OSAGE CITY...WILLIAMSBURG...LYNDON...QUENEMO...CENTROPOLIS... PRINCETON...POMONA LAKE...OVERBROOK AND OTTAWA. MOTORISTS ALONG INTERSTATE 35 BETWEEN MILE MARKERS 136 AND 188 COULD ALSO BE AFFECTED.
The Topeka radar (KTWX), 82 km away, was scanning. The volume nearest the first event began at 19:41 UTC.
1 thunderstorm wind. Local standard time, as filed.
Three inch diameter live tree limbs down. Power knocked out at the spotter's home.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2007Every state in 2007This day in weather historyWarnings in Kansas, September 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: 59832.