A cold front moving through the Missouri Ozarks and training of thunderstorms led to localized 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.
A cold front moving through the Missouri Ozarks and training of thunderstorms led to localized 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 May 9, 9:02 PM CST, 1 hour 58 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 1002 PM CDT THU MAY 9 2013 .UPDATE... ISSUED AT 942 PM CDT THU MAY 9 2013 A FEW CHANGES HAVE BEEN MADE TO THE FORECAST FOR THE REMAINDER OF TONIGHT. FIRST OFF...POPS WERE TWEAKED TO ACCOUNT FOR THE LATEST RADAR TRENDS. THE CLUSTER OF THUNDERSTORMS THAT IMPACTED MOST OF SOUTHWESTERN MISSOURI HAS BEEN ON A DECLINING TREND AS ITS OUTFLOW HAS CHOKED OFF BETTER LOW LEVEL THETA-E AIR. THE NORTHWARD MOVING OUTFLOW BOUNDARY DOES CONTINUE TO KICK UP A FEW UPDRAFTS...BUT THESE ARE NOT LASTING ALL THAT LONG. ONE THING WE WILL HAVE TO WATCH IS FAR SOUTHWESTERN MISSOURI WHERE STORMS REMAIN A BIT STRONGER. CONVECTION ACROSS THIS REGION HAS SHOWN UPWIND PROPAGATING CHARACTERISTICS AS A WEAK LOW LEVEL JET HAS IMPINGED ON THE REGION. CORFIDI VECTORS ARE ALMOST NIL IN THIS AREA...SO WE HAVE INTRODUCED A LIMITED FLOODING THREAT FOR TRAINING STORMS. WE ARE ALSO WATCHING A COLD FRONT AS IT CONTINUES TO SLIDE SOUTHEAST ACROSS SOUTHEASTERN KANSAS AND WEST CENTRAL MISSOURI. WE HAVE SEEN WIDELY SCATTERED THUNDERSTORMS DEVELOP ALONG THIS FEATURE...BUT COVERAGE IS BEGINNING TO DECREASE. AS WE HEAD INTO THE OVERNIGHT PERIOD...THE MAIN SHOW WILL BE CONVECTION ALONG AND SOUTH OF THE INTERSTATE 44 CORRIDOR. WE MAY STILL SEE SOME UPDRAFTS TRY AND GET GOING ALONG THE FRONT...BUT COVERAGE SHOULD REMAIN ISOLATED TO WIDELY SCATTERED AT BEST. A FEW OF THE MORE ROBUST UPDRAFTS ACROSS THE REGION MAY STILL CONTAIN SOME SMALL HAIL OR LOCALLY GUSTY WINDS. AS WAS MENTIONED IN THE PREVIOUS PARAGRAPH...THERE IS ALSO A HYDRO CONCERN FOR ANY TRAINING STORMS. FINALLY...WE ALSO DECIDED TO ADD PATCHY FOG FOR AREAS THAT SAW DECENT RAINFALL THIS EVENING. && .SHORT TERM...(THIS EVENING THROUGH FRIDAY) ISSUED AT 257 PM CDT THU MAY 9 2013 REGIONAL RADAR MOSAIC IS BEGINNING TO LIGHT UP A BIT. ESPECIALLY ALONG AND NORTHWEST OF THE SURFACE COLD FRONT THAT IS STILL LOITERING JUST TO THE NORTHWEST OF THE OUTLOOK AREA. OTHER CONVECTIVE DEVELOPMENT IS UNDERWAY IN OKLAHOMA. FOR NOW...THINGS ARE QUIET HERE. HOWEVER...SLOW DESTABILIZATION IS UNDERWAY AND AN INCREASING CUMULUS FIELD IS BEGINNING TO DEVELOP NOW THAT SUBSIDENCE BEHIND THIS MORNINGS MCV IS STARTING TO WANE. OVER THE NEXT FEW HOURS...WE SHOULD SEE ISOLATED TO SCATTERED SHOWER AND THUNDERSTORM DEVELOPMENT. PREFERRED AREAS FOR DEVELOPMENT AT THIS JUNCTURE WILL BE THE WEST/NORTHWEST HALF OF THE AREA...ESPECIALLY AS YOU GET CLOSER TO THE SURFACE FRONT. DEEP LAYER SHEAR REMAINS WEAK (20-25KT) AND MLCAPE WILL GENERALLY BE IN THE 1000-1500 J/KG RANGE...SO THERE IS A RISK FOR A FEW STRONG STORMS (PENNY HAIL/LOCALIZED 40-50 MPH WINDS). HEADING INTO THIS EVENING...WILL NEED TO WATCH CONVECTIVE DEVELOPMENT OVER OKLAHOMA AS THIS WILL HAVE A CHANCE TO MOVE INTO THE REGION. THE COLD FRONT WILL CONTINUE A SLOW SAG TO THE SOUTHEAST. LOSS OF DAYTIME HEATING WILL RESULT IN DECREASING MLCAPE VALUES...THOUGH THE ATMOSPHERE WILL REMAIN UNSTABLE ENOUGH TO SUPPORT SCATTERED SHOWER AND THUNDERSTORM DEVELOPMENT ACROSS THE AREA WELL INTO THE OVERNIGHT HOURS. BY FRIDAY MORNING...COLD FRONT THAT WILL BE APPROACHING FROM THE NORTH TONIGHT SHOULD BE BISECTING THE CWA FROM SOUTHWEST TO NORTHEAST...MORE OR LESS ALONG I-44. THE FRONT WILL ONLY SLOWLY MOVE SOUTHEAST WITH TIME TOMORROW. THE BEST PRECIPITATION CHANCES WILL BE ALONG AND AHEAD OF THE FRONT TOMORROW...BUT I DO THINK SOME AREAS OF SHOWERS/PERHAPS AN ISOLATED THUNDERSTORM WILL REMAIN POSSIBLE BEHIND THE FRONT...AS A COUPLE OF POST-FRONTAL SHORTWAVES ROTATE SOUTHEAST ACROSS THE AREA. .LONG TERM...(FRIDAY NIGHT THROUGH THURSDAY) ISSUED AT 257 PM CDT THU MAY 9 2013 SKIES SHOULD BEGIN TO CLEAR LATE FRIDAY NIGHT/EARLY SATURDAY MORNING AS SURFACE RIDGING AND A BIT OF MID AND UPPER LEVEL SUBSIDENCE BUILDS IN. CLOUDS WILL INCREASE AGAIN DURING THE DAY SATURDAY AS THE NEXT...MUCH STRONGER FRONT BEGINS TO APPROACH FROM THE NORTH. A THIN LINE OF LIGHT RAIN SHOWERS WILL BE POSSIBLE ALONG THIS SECONDARY FRONT AS IT PASSES THROUGH THE REGION SATURDAY AFTERNOON. A LARGE AREA OF CANADIAN HIGH PRESSURE WILL START TO BUILD INTO THE AREA SATURDAY NIGHT AND SUNDAY MORNING. THIS SHOULD PRODUCE GOOD RADIATIONAL COOLING CONDITIONS FOR SUNDAY MORNING...WITH SOME AREAS DROPPING TO AROUND 40 DEGREES BY DAYBREAK SUNDAY. TEMPERATURES FOR NOW LOOK JUST WARM ENOUGH TO PRECLUDE WIDESPREAD FROST...BUT SOME VERY PATCHY LIGHT FROST COULD OCCUR IN MORE SHELTERED LOCATIONS WITHIN THE COMPLEX TERRAIN ALONG/SOUTH OF THE OZARK PLATEAU. THAT AREA OF HIGH PRESSURE WILL SINK SOUTH THROUGH THE MID MISSISSIPPI VALLEY ON SUNDAY...HELPING TO KEEP TEMPERATURES A BIT COOL...GENERALLY IN THE LOW TO MID 60S. ALSO ON SUNDAY/SUNDAY EVENING...GUIDANCE HAS BEEN HINTING AT ANOTHER SHORTWAVE TRYING TO DROP SOUTH ACROSS THE EASTERN PLAINS IN NORTHWEST FLOW. ASCENT WITH THIS SYSTEM MAY BE JUST ENOUGH TO GENERATE A COUPLE OF LIGHT RAIN SHOWERS OR SPRINKLES OVER THE WESTERN THIRD OF THE CWA ON SUNDAY. MOST LOCATIONS SHOULD REMAIN DRY HOWEVER. THE BEGINNING OF NEXT WORKWEEK LOOKS TO FEATURE RISING HEIGHTS ALOFT AS EASTERN CONUS TROUGHING PROGRESSES INTO THE CANADIAN MARITIMES. THIS WILL RESULT IN A WARM UP THROUGH THE MIDDLE PART OF NEXT WEEK...WITH HIGHS BACK INTO THE UPPER 70S/LOW 80S BY TUESDAY AND WEDNESDAY. RETURN FLOW AND AN ASSOCIATED INCREASE IN MOISTURE BY WEDNESDAY/THURSDAY WILL RESULT IN RENEWED CHANCES FOR SCATTERED THUNDERSTORMS. && .AVIATION...(FOR THE 00Z TAFS THROUGH 00Z FRIDAY EVENING) ISSUED AT 706 PM CDT THU MAY 9 2013 AN AREA OF SHOWERS AND THUNDERSTORMS WILL IMPACT THE KSGF AND KBBG AERODROMES THIS EVENING. MVFR CONDITIONS CAN BE EXPECTED WITH THESE STORMS. KJLN WILL BE ON THE NORTHERN EDGE OF THIS ACTIVITY. NEVERTHELESS...WE INCLUDED TEMPO GROUPS FOR MVFR AND THUNDER AT ALL THREE TAF SITES. ADDITIONAL THUNDERSTORMS WILL BE POSSIBLE OVERNIGHT...HOWEVER COVERAGE OF THUNDERSTORMS WILL BE MUCH MORE SPORADIC. MEANWHILE...A COLD FRONT WILL SLOWLY MOVE THROUGH THE AREA LATE TONIGHT WITH MVFR CEILINGS EXPECTED TO SETTLE IN BEHIND THIS FEATURE. WE DID INCLUDE A TEMPO GROUP FOR IFR CEILINGS AS A COUPLE OF WEATHER MODELS CONTINUE TO ADVERTISE THIS POTENTIAL. WE ARE THEN EXPECTING MVFR CEILINGS FOR MUCH OF FRIDAY WITH A FEW SHOWERS DEVELOPING IN THE AFTERNOON. && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. && UPDATE...SCHAUMANN SHORT TERM...GAGAN/BOXELL LONG TERM...BOXELL AVIATION...SCHAUMANN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPRINGFIELD MO 1013 PM CDT THU MAY 9 2013 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-110315- 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- 1013 PM CDT THU MAY 9 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI OZARKS AND EXTREME SOUTHEAST KANSAS. .DAY ONE...TONIGHT. WEATHER HAZARDS EXPECTED... LIMITED HAIL RISK. LIMITED FLOODING RISK. ELEVATED LIGHTNING RISK. LIMITED FOG RISK. DISCUSSION... SCATTERED TO NUMEROUS THUNDERSTORMS WILL PERSIST OVERNIGHT MAINLY ALONG AND SOUTH OF THE INTERSTATE 44 CORRIDOR. ISOLATED TO WIDELY SCATTERED THUNDERSTORMS WILL ALSO BE POSSIBLE NORTH OF THE INTERSTATE. NO WIDESPREAD SEVERE WEATHER IS EXPECTED TONIGHT...BUT A FEW STRONGER STORMS MAY PRODUCE HAIL TO THE SIZE OF NICKELS...WIND GUSTS TO 40 MPH...FREQUENT LIGHTNING...AND LOCALLY HEAVY RAINFALL. THERE IS THE POTENTIAL FOR MINOR FLOODING OF CREEKS AND LOW WATER CROSSINGS ACROSS PORTIONS OF SOUTHWESTERN MISSOURI WHERE THUNDERSTORMS REPEATEDLY TRACK OVERNIGHT. PATCHY FOG WITH VISIBILITIES DOWN TO A MILE OR LESS WILL ALSO BE POSSIBLE FROM LATE TONIGHT INTO EARLY FRIDAY MORNING ACROSS SOUTHWESTERN MISSOURI. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. A COLD FRONT WILL PUSH THROUGH THE REMAINDER OF THE AREA FRIDAY MORNING WITH THUNDERSTORMS OCCURRING ALONG AND AHEAD OF THE FRONT...MAINLY IN AREAS SOUTHEAST OF THE INTERSTATE 44 CORRIDOR. NO SEVERE WEATHER IS EXPECTED. ADDITIONAL THUNDERSTORM CHANCES WILL OCCUR DURING THE MIDDLE PART OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT. && 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) SCHAUMANN
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 847 PM CDT THU MAY 9 2013 MOZ091-092-100230- WEBSTER MO-WRIGHT MO- 847 PM CDT THU MAY 9 2013 ...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL WEBSTER AND NORTHWESTERN WRIGHT COUNTIES UNTIL 930 PM CDT... AT 845 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5 MILES WEST OF DUNCAN...OR 9 MILES SOUTHEAST OF MARSHFIELD...MOVING NORTHEAST AT 30 MPH. PENNY SIZE HAIL IS EXPECTED WITH THIS STORM. LOCATIONS IMPACTED INCLUDE HARTVILLE. LAT...LON 3746 9251 3727 9240 3717 9279 3728 9285 TIME...MOT...LOC 0146Z 240DEG 26KT 3727 9277 WISE
The national radar mosaic for the moment the first event began.
5 flood. Local standard time, as filed.
The low water crossing at Highway 86 was flooded.
Roadways along Big Sugar Creek, Little Sugar Creek, and Indian Creek were closed due to flooding.
Route CC was flooded and closed.
Highway 86 was closed due to high water.
Route C was closed due to flooding along the Little Flat Creek.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2013Every state in 2013This day in weather historyWarnings in Missouri, May 2013
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: 444820, 444821, 444822, 444823, 444824.