Thunderstorms tracking through Southeast Kansas into Southwest Missouri produced wind damage and flooding.
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 SGF wrote it up.
Thunderstorms tracking through Southeast Kansas into Southwest Missouri produced wind damage and flooding.
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 Springfield, MO wrote its last area forecast discussion before the first event at Aug 10, 8:18 AM CST, 3 hours 13 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 918 AM CDT MON AUG 10 2009 ...MESOSCALE CONVECTIVE DISCUSSION... .UPDATE... THUNDERSTORMS CONTINUE TO EXPAND ROUGHLY ALONG AND EITHER SIDE OF A LINE FROM FORT SCOTT KS TO OSCEOLA TO THE LAKE OF THE OZARKS. SOUTH SOUTHWESTWARD MOVING OUTFLOW BOUNDARY CLEARLY SEEN ON KSGF WSR 88D IMAGERY. THE LOW LEVEL JET...BEST SEEN AROUND THE 925MB THIS MORNING...REMAINS PERPENDICULAR TO THIS BOUNDARY RIGHT NOW...THOUGH LOW LEVEL WINDS SHOULD VEER/WEAKEN WITH TIME LEADING TO A TREND OF DECREASING ACTIVITY. THE MAIN HAZARD WITH RAINFALL THIS MORNING ACROSS THE NORTHERN CWA WILL BE LOCALLY HEAVY RAINFALL. WITH A MYRIAD OF BOUNDARIES AROUND AND TEMPS EXPECTED TO REACH INTO THE UPPER 80S/LOWER 90S...ADDITIONAL DEVELOPMENT OF TSRA IS EXPECTED THIS AFTERNOON...PARTICULARLY ALONG THE INTERSTATE 44 CORRIDOR. SBCAPE SHOULD RISE ABOVE 3000 J/KG WITH MLCAPE IN EXCESS OF 2000 J/KG...THUS THERE IS A CONCERN FOR SCATTERED SEVERE STORMS WITH DOWNBURSTS THE PRIMARY ISSUE...HAIL IS A SECONDARY CONCERN. CHANCES FOR STORMS WILL ONCE AGAIN BE A CONCERN LATER TONIGHT AND TUESDAY AS WE WILL LIKELY BE ON THE RECEIVING END OF AN MCS FROM KS LATE TONIGHT/EARLY TUE. GAGAN && .DISCUSSION... FORECAST CHALLENGES CONTINUE TO DEAL WITH POP CHANCES AND TIMING IN THE SHORT TERM THAT WILL HAVE A HUGE IMPACT ON TEMPERATURES THIS AFTERNOON AND TUESDAY. THERE IS A VERY HIGH POSSIBILITY OF A FORECAST BUST WITH BOTH TEMPERATURES AND POPS FOR TODAY. CURRENTLY...SURFACE LOW CENTERED OVER NORTHEAST KANSAS JUST TO THE WEST OF TOPEKA THIS MORNING. COLD FRONT TO THE SOUTHWEST BISECTING KANSAS FROM NORTHEAST TO SOUTHWEST. CONVECTION ON MOSAIC RADAR CONCENTRATED OVER NORTHWESTERN MISSOURI AND SEEMS TO BE PERCOLATING ON PREVIOUS OUTFLOW BOUNDARIES. SOUTHWESTERN PORTION OF THE CONVECTION BEING FUELED BY 25-30KT LOW LEVEL JET AS CAN BE SEEN ON AREA PROFILERS. THIS JET SEEMS TO BE WEAKENING SOME OVER THE PAST COUPLE HOURS AND WILL NEED TO WATCH WHAT HAPPENS WHEN/IF THE JET WEAKENS ANY FURTHER. FOR TODAY...WILL CONTINUE TO MONITOR PROGRESS OF OUTFLOW BOUNDARIES TO THE SOUTH TO MAKE ANY LAST MINUTE CALLS ON POPS AND TEMPERATURES TODAY. FROM THE WRF THIS MORNING...INDICATIONS ARE THAT THE LOW LEVEL JET WILL PICK UP AGAIN LATER THIS MORNING AND SHIFT MORE WESTERLY...WHICH WOULD SHIFT CONVECTION FURTHER TO THE SOUTH AS OUTFLOW BOUNDARIES MOVE SOUTH. GFS ON THE OTHER HAND...REALLY WEAKENS THE JET AND ANY CONVECTION APPEARS TO BE ISOLATED TO SCATTERED ALONG THE FRONT AS IT STALLS OVER NORTHERN AND CENTRAL MISSOURI. HAVE DECIDED TO FOLLOW THE WRF/HPC SOLUTION AND BRING SHOWERS AND FRONT SOUTH INTO THE CWA THIS AFTERNOON AND WILL KEEP THE WET SOLUTION GOING. SHOULD THE GFS SOLUTION BEAR FRUIT...CWA WILL REMAIN DRY AT LEAST UNTIL THIS EVENING AND TEMPERATURES WILL CLIMB BACK INTO THE LOW TO MID 90S. TOOK A BLEND OF WRF AND GFS TEMPERATURES FOR TODAY AND HAVE UPPER 80S/LOW 90S FORECAST FOR HIGHS TODAY. SEVERE THUNDERSTORMS WILL BE A POSSIBILITY AS WELL THIS AFTERNOON...PARTICULARLY OUR SOUTHERN AND SOUTHEASTERN COUNTIES WHERE WRF FORECAST CAPES APPROACH 3000 J/KG AS THE LOW LEVEL CAP BREAKS. LOOK FOR HAZARDS TO BE MAINLY CONVECTIVE WINDS AND HAIL THIS AFTERNOON AND WILL INCLUDE IN THIS MORNINGS HWO. ALL MODELS ARE SHOWING A CONVECTIVE COMPLEX FORMING TONIGHT ACROSS EASTERN KANSAS AND MOVING EASTWARD INTO THE SGF CWA OVERNIGHT WITH SEVERE WEATHER THREATS TURNING TO HEAVY RAINFALL. GFS...THOUGH PROBABLY CONVECTIVE LY CONTAMINATED...IS FORECASTING SOME PRETTY HIGH RAIN AMOUNTS WITH THIS COMPLEX...ANYWHERE FROM 2 TO 4 INCHES WITH THIS COMPLEX. MM5...WRF AND HPC FORECASTS SIGNIFICANTLY LESS...FORECASTING GENERALLY THREE QUARTERS TO AN INCH OF WIDESPREAD RAINFALL. GIVEN RELATIVE DRY SOIL CONDITIONS...DO NOT THINK A FLASH FLOOD WATCH IS WARRANTED...BUT DAY SHIFT MAY WANT TO TAKE ANOTHER LOOK AT THIS LATER TODAY. BACK IN NORTHWEST FLOW FOR WEDNESDAY AS FRONT SHIFTS TO THE SOUTH AND EAST. TEMPERATURES SHOULD REMAIN COOL AS SURFACE WINDS WILL BE OUT OF THE NORTHEAST AND EAST THROUGH THURSDAY. GULF MOISTURE BEGINS TO RETURN THURSDAY AS SURFACE HIGH PUSHES OFF TO THE EAST AND WINDS BECOME MORE SOUTHERLY. CLAYCOMB && .AVIATION... FOR THE 12Z TAFS...CONVECTION IS EXPECTED TO AFFECT ALL 3 TERMINAL FORECAST POINTS LATER TODAY AS A COLD FRONT DROPS SOUTH INTO THE REGION. CURRENT CONVECTION TO THE NORTH EXPECTED TO SHIFT EASTWARD THIS MORNING WITH REDEVELOPMENT EXPECTED ALONG THE FRONT LATE THIS MORNING AND THIS AFTERNOON. CURRENTLY HAVE A TEMPO GROUP WITH THUNDERSTORMS AND MVFR CONDITIONS DURING THE 18-00Z PERIOD...WITH CONTINUING CB WORDING THROUGH AROUND 03Z. LINDENBERG && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPRINGFIELD MO 421 AM CDT MON AUG 10 2009 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-110930- BOURBON-CRAWFORD-CHEROKEE-BENTON-MORGAN-MILLER-MARIES-VERNON- ST. CLAIR-HICKORY-CAMDEN-PULASKI-PHELPS-BARTON-CEDAR-POLK-DALLAS- LACLEDE-TEXAS-DENT-JASPER-DADE-GREENE-WEBSTER-WRIGHT-NEWTON- LAWRENCE-CHRISTIAN-DOUGLAS-HOWELL-SHANNON-MCDONALD-BARRY-STONE- TANEY-OZARK-OREGON- 421 AM CDT MON AUG 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI OZARKS AND EXTREME SOUTHEAST KANSAS. .DAY ONE...TODAY AND TONIGHT. WEATHER HAZARDS EXPECTED: THUNDERSTORM DOWNBURST WINDS TO 60 MPH QUARTER SIZED HAIL HEAVY RAINFALL AREAS AFFECTED AND TIMING: THUNDERSTORMS WILL DEVELOP FROM THE NORTHWEST LATER THIS MORNING AND SPREAD SOUTHEAST THROUGH THE AFTERNOON HOURS. COMMUNITIES NORTH AND WEST OF A LINE FROM JOPLIN TO BOLIVAR TO VIENNA CAN EXPECT THESE THUNDERSTORMS SPREADING INTO THE AREA BY LATE MORNING. COMMUNITIES SOUTH AND EAST OF THIS LINE CAN EXPECT THESE THUNDERSTORMS TO MOVE INTO THEIR AREAS EARLY THIS AFTERNOON...PERSISTING INTO THE LATE AFTERNOON HOURS. DISCUSSION: A COLD FRONT ACROSS NORTHWESTERN MISSOURI WILL SLOWLY MOVE SOUTHEAST THROUGH THE DAY. WITH TEMPERATURES RISING INTO THE LOW 90S AND SUFFICIENT LOW LEVEL MOISTURE ALREADY IN PLACE...THIS FRONT AND ANY REMNANT OUTFLOW BOUNDARIES FROM MORNING CONVECTION WILL SERVE AS THE FOCUSING MECHANISM FOR THUNDERSTORM DEVELOPMENT. THE FRONT IS EXPECTED TO MOVE SOUTH THROUGH THE DAY AND IMPACT COMMUNITIES ACROSS SOUTHERN AND SOUTHEASTERN MISSOURI THROUGH THE AFTERNOON HOURS. INDICATIONS ARE THAT A CONVECTIVE COMPLEX WILL FORM OVER EASTERN KANSAS THIS EVENING AND MOVE SOUTHEAST INTO THE FORECAST AREA OVERNIGHT. SOME OF THESE STORMS MAY ALSO BE STRONG TO POSSIBLY SEVERE...WITH AN INCREASING THREAT FOR HEAVY RAINFALL LEADING TO LOCALIZED FLASH FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THUNDERSTORMS WILL END FROM NORTHWEST TO SOUTHEAST TUESDAY MORNING WITH HEAVY RAINFALL BEING THE PRIMARY HAZARD TUESDAY MORNING. ALL THUNDERSTORMS SHOULD EXIT OUR SOUTHEAST COUNTIES BY NOON TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED FOR COMMUNITIES IN SOUTHEAST KANSAS AND WEST CENTRAL MISSOURI...NORTH AND WEST OF A LINE FROM JOPLIN TO BOLIVAR TO VIENNA BY 9 AM TODAY. COMMUNITIES SOUTH AND EAST OF THIS LINE MAY NEED TO ACTIVATE SPOTTERS BY MID AFTERNOON. && THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE) CLAYCOMB
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 1133 AM CDT MON AUG 10 2009 MOZ090-101700- GREENE MO- 1133 AM CDT MON AUG 10 2009 ...SIGNIFICANT WEATHER ALERT FOR CENTRAL GREENE COUNTY UNTIL NOON CDT... AT 1132 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES SOUTH OF WILLARD...OR 7 MILES NORTHWEST OF BATTLEFIELD...MOVING EAST AT 20 MPH. WINDS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS IMPACTED INCLUDE GALLOWAY...GLIDEWELL...SPRINGFIELD... TURNERS AND WILLARD. INTERSTATE 44 BETWEEN MILE MARKERS 67 AND 85 WILL ALSO BE IMPACTED BY THIS STORM. IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. GAEDE
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 1212 PM CDT MON AUG 10 2009 MOZ082-092-101745- WRIGHT MO-TEXAS MO- 1212 PM CDT MON AUG 10 2009 ...SIGNIFICANT WEATHER ALERT FOR EAST CENTRAL WRIGHT AND WEST CENTRAL TEXAS COUNTIES UNTIL 1245 PM CDT... AT 1210 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 4 MILES WEST OF DAWSON...OR 11 MILES NORTHWEST OF MOUNTAIN GROVE...MOVING EAST AT 20 MPH. PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS IMPACTED INCLUDE BENDAVIS...DAWSON...GRAFF AND HUGGINS. IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER INDOORS AND STAY AWAY FROM WINDOWS. GAEDE
The Springfield radar (KSGF), 7 km away, was scanning. The volume nearest the first event began at 17:31 UTC.
2 thunderstorm wind, 1 flood, 1 heavy rain. Local standard time, as filed.
Flooding reported in Springfield along Bennett Street between Campbell and South Street and near the intersections of Commercial and Glenstone and|Divison and Freemont Streets.
A cooperative observer measured 2.60 inches of rain.
Power lines were blown down.
Large limbs and power lines were blown down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2009Every state in 2009This day in weather historyWarnings in Missouri, August 2009
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: 193264, 193265, 193254, 193253.