1 flash flood, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 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 22, 1:10 AM CST, 2 hours 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 210 AM CDT MON MAY 22 2006 .DISCUSSION... REMNANTS OF A THUNDERSTORM COMPLEX ACROSS WESTERN KANSAS SUNDAY MORNING HAD MOVED ACROSS SOUTHEAST KANSAS...AND INTO NORTH CENTRAL ARKANSAS EARLY THIS MORNING. THIS FEATURE ALONG WITH A WEAK BOUNDARY ACROSS SOUTHERN MISSOURI...CAUSED THUNDERSTORMS TO DEVELOP OVER THE OZARKS. SOME OF THESE THUNDERSTORMS CAUSED LOCALIZED FLOODING IN SPRINGFIELD ALONG WITH A LARGE TREE THAT WAS BLOWN DOWN. HOWEVER...MOST OF THE ACTIVITY WAS BELOW SEVERE LIMITS. ANOTHER COMPLEX OF THUNDERSTORMS ACROSS NORTHWEST KANSAS MAY AFFECT PORTIONS OF THE OZARKS THIS MORNING...HOWEVER AT THIS TIME IT SEEMS THAT THE MAIN COMPLEX WILL MOVE INTO OKLAHOMA AND BYPASS THE FORECAST AREA. FORECAST CONCERNS DEAL WITH THE COMPLEX ACROSS KANSAS AND IF ANY BOUNDARIES WILL INITIATE THUNDERSTORMS DURING THE LATE AFTERNOON/EARLY EVENING TIME PERIOD. THE AIR MASS ACROSS THE REGION HAS BECOME MORE TROPICAL AS DEW POINTS RISE INTO THE MID 60S...AND PRECIPITABLE WATER VALUES HAVE RISEN BETWEEN 1.25 AND 1.50 INCHES. EARLIER THUNDERSTORMS ACROSS THE OZARKS PRODUCED TORRENTIAL RAINFALL RATES...CONVINCING ME THAT RAINFALL PROCESSES ARE EXCELLENT AND WARM CLOUD HEIGHTS ARE CONSIDERABLY HIGH FOR THIS TIME OF YEAR. LOCAL SOUNDING INFORMATION FOR KSGF INDICATED LITTLE OR NO CAP WILL REMAIN ACROSS THE OZARKS THROUGH TUESDAY. MEAN LAYER CAPES WILL LIKELY AVERAGE BETWEEN 2000/3000 J/KG DURING THE LATE AFTERNOON AND EARLY EVENING HOURS. THE MAIN FACTOR FOR THUNDERSTORM DEVELOPMENT WILL BE SURFACE BOUNDARIES OR ANY TYPE OF SHORT WAVE INTERACTION. AT THIS TIME...HAVE CONSIDERED MINOR MESOSCALE BOUNDARIES HOLDING NEAR THE REGION UNTIL THE LARGE SCALE PATTERN CHANGES BY MID WEEK. THEREFORE...AS WITH A TYPICAL SUMMERTIME PATTERN...THUNDERSTORMS WILL LIKELY FORM DURING THE LATE AFTERNOON AND EARLY EVENING HOURS. ONCE THE LARGE SYNOPTIC SCALE PATTERN CHANGES FROM NORTHWESTERLY FLOW TO WEST/SOUTHWESTERN FLOW BY WEDNESDAY...EXPECT SOUTHERLY WINDS TO COMMENCE ACROSS THE MID MISSISSIPPI VALLEY REGION. THEREFORE...ANY TYPE OF SHORT WAVES WILL LIKELY REMAIN WELL NORTH OF THE AREA UNTIL LATE WEDNESDAY AS THE COLD FRONT MOVES THROUGH THE AREA. JLT && .AVIATION... FOR 12Z TAFS...WILL HAVE SOME EARLY MORNING FOG IN THE FORECAST FOR KSGF WITH RESIDUAL MOISTURE FROM SUNDAY EVENING RAINFALL AND LIGHT SURFACE WINDS. CLOUD DEBRIS FROM STORM COMPLEX OVER NORTH CENTRAL KANSAS MAY SLOW FOG DISSIPATION THIS MORNING FOR A FEW HOURS...SO WILL LIKELY HANG ON TO MVFR FOG UNTIL 15-16Z. MODEL FORECAST SHOWS GRADUALLY STRENGTHENING CAP OVER THE AREA AS UPPER RIDGING DEVELOPS THROUGH TUESDAY. HOWEVER IT LOOKS LIKE CAP WILL REMAIN WEAK ENOUGH TO ALLOW AT LEAST SOME SCATTERED AFTERNOON CONVECTION ESPECIALLY FROM KSGF EASTWARD. THEREFORE PLAN TO CONTINUE VCTS IN TAFS FROM LATE AFTERNOON THROUGH THE EVENING. TERRY && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. WFO SGF
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPRINGFIELD MO 117 AM CDT MON MAY 22 2006 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-221200- 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- 117 AM CDT MON MAY 22 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI OZARKS AND EXTREME SOUTHEAST KANSAS. .DAY ONE...TONIGHT. WEATHER HAZARDS EXPECTED: ISOLATED NON-SEVERE THUNDERSTORMS PRODUCING... SMALL HAIL...LOCALLY HEAVY RAINFALL AND WIND GUSTS OF 45 MPH. AREAS AFFECTED AND TIMING: MAINLY FOR AREAS EAST OF HIGHWAY 65 ACROSS SOUTH CENTRAL AND CENTRAL MISSOURI THROUGH SUNRISE. DISCUSSION: CLUSTERS OF THUNDERSTORMS ACROSS THE EASTERN OZARKS EARLY THIS MORNING WILL CONTINUE TO MOVE EAST AND SOUTHEAST TOWARD SOUTHEAST MISSOURI DURING THE PRE DAWN HOURS. LOCALLY HEAVY RAINFALL AND SMALL HAIL WILL BE THE MAIN WEATHER THREAT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE MONDAY ACROSS EAST CENTRAL MISSOURI. ANOTHER CHANCE OF THUNDERSTORMS DEVELOP LATE TUESDAY INTO WEDNESDAY AS ANOTHER COLD FRONT APPROACHES THE REGION. .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) JLT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SPRINGFIELD MO 1047 PM CDT SUN MAY 21 2006 MOZ095-103-220500- CHRISTIAN-STONE- 1047 PM CDT SUN MAY 21 2006 ...SIGNIFICANT WEATHER ALERT FOR CHRISTIAN COUNTY AND NORTHEAST STONE COUNTY UNTIL MIDNIGHT CDT... AT 1042 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM FORDLAND TO BILLINGS...OR ALONG A LINE EXTENDING FROM 11 MILES SOUTH OF MARSHFIELD TO REPUBLIC...AND MOVING SOUTHEAST AT 15 MPH. THESE STORMS WILL BE... NEAR NIXA BY 1100 PM CDT. NEAR OZARK BY 1110 PM CDT. NEAR SPARTA BY 1120 PM CDT. NEAR HIGHLANDVILLE BY 1125 PM CDT. WINDS AROUND 50 MPH...PEA SIZE HAIL...TORRENTIAL RAINFALL AND NUMEROUS CLOUD TO GROUND LIGHTNING STRIKES ARE EXPECTED WITH THESE STORMS. GAGAN
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1123 PM CDT SUN MAY 21 2006
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1035 PM TSTM WND DMG SPRINGFIELD 37.20N 93.29W
05/21/2006 GREENE MO LAW ENFORCEMENT
1 TREE DOWN NEAR INTERSECTION OF CHESTERFIELD AND
BUTTERFIELD.
&&
GAGANThe Springfield radar (KSGF), 104 km away, was scanning. The volume nearest the first event began at 09:32 UTC.
1 flash flood. Local standard time, as filed.
Excessive rainfall caused a low water crossing on Carroll Cave Road to become impassable to motorists from flash flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2006Every state in 2006This day in weather historyWarnings in Missouri, May 2006
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: 5508824.