Convective clusters with bowing segments and a few supercells produced scattered wind damage and a few reports of hail. In addition, heavy rainfall in excess of three inches occurred at some locations resulted in localized flash 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.
Convective clusters with bowing segments and a few supercells produced scattered wind damage and a few reports of hail. In addition, heavy rainfall in excess of three inches occurred at some locations resulted in localized flash 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 Jul 11, 11:38 AM CST, 1 hour 19 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPRINGFIELD MO 1238 PM CDT SUN JUL 11 2010 .UPDATE... STORM CLUSTER DEVELOPING OVER NORTHEAST KANSAS/NORTHWEST MISSOURI CONTINUES TO INTENSIFY WITH STORM ENTERING PETTIS COUNTY SHOWING SIGNS OF ROTATION. WITH STORMS MOVING EAST SOUTHEAST ALONG THE RESIDUAL OUTFLOW BOUNDARY FROM MORNING MCS...THINK WE SHOULD SEE SUPERCELL STORMS MOVING INTO NORTHERN BENTON/MORGAN COUNTIES WITHIN THE HOUR. ADDITIONAL STORM DEVELOPMENT CONTINUES ON THE SOUTHWEST SIDE OF THE STORM COMPLEX OVER EASTERN KANSAS. EXPECT THIS AREA TO EXPAND AND INTENSIFY OVER THE NEXT HOUR OR TWO ALSO. TERRY && .DISCUSSION... IT LOOKS TO BE A RATHER BUSY NEXT FEW DAYS IN THE WEATHER DEPARTMENT...WITH SEVERE WEATHER AND HEAVY RAIN POTENTIAL OVER THE NEXT FEW DAYS...AND POTENTIAL EXCESSIVE HEAT BY MID TO LATE WEEK BEING THE MAIN CONCERNS. REGION REMAINS SITUATED UNDER SWIFT FLOW ALOFT THIS MORNING...WITH 40-60 KTS OF FLOW AT 300 MB OVERSPREADING THE AREA PER REGIONAL PROFILER NETWORK. CONVECTION THAT INITIATED IN THE VICINITY OF THE SURFACE FRONT OVER THE NORTHERN HIGH PLAINS ON SATURDAY CONTINUES TO PUSH SOUTHEAST EARLY THIS MORNING OVER SOUTHERN NEBRASKA AHEAD OF UPPER LEVEL SHORTWAVE OVER NORTH-CENTRAL NEBRASKA. TODAY AND TONIGHT... VERY COMPLEX AND FRANKLY UNCERTAIN FORECAST FOR TODAY AND THIS EVENING WITH REGARD TO SEVERE WEATHER POTENTIAL. ONGOING CONVECTION THIS MORNING IS EXPECTED TO CONTINUE TO SLIDE EAST-SOUTHEAST DURING THE MORNING HOURS. THERE IS SOME SUGGESTION PER THE SPC 4 KM WRF THAT THIS CONVECTION COULD SLIDE INTO NORTHERN AND WESTERN PORTIONS OF THE CWA AFTER DAYBREAK TODAY. AT THIS POINT...AM LEANING TOWARD THE IDEA OF THIS INITIAL CONVECTION PERHAPS CLIPPING THE NORTHERN PORTION OF THE CWA...BUT LIKELY REMAINING NORTH OF THE AREA THIS MORNING. FOR LATE THIS MORNING INTO THE AFTERNOON AND EVENING...EVOLUTION OF CONVECTION WILL BE HIGHLY DEPENDENT ON HOW MUCH DESTABILIZATION IS ABLE TO TAKE PLACE DURING THE DAY TODAY...AND THE EXACT TIMING OF CONVECTIVE INITIATION. SOME CONCERN AT THIS POINT THAT MODEL GUIDANCE COULD BE STRUGGLING WITH DEGREE OF DESTABILIZATION DUE TO EXCESSIVE SURFACE DEWPOINTS THIS AFTERNOON (SOME MODELS SUGGESTING HIGH 70S...WITH LOW TO MID 70S MORE PROBABLE)...AS WELL AS POTENTIAL ISSUES WITH CLOUD COVER FROM THIS MORNINGS CONVECTION AND ITS EFFECT ON SOLAR INSOLATION. AT ANY RATE...BEST FORECAST APPEARS TO CENTER AROUND MLCAPE VALUES BUILDING INTO THE 1000-2000 J/K RANGE BY AFTERNOON...WHICH COMBINED WITH EXPECTED 40 KTS OF 0-6 KM BULK SHEAR IS CERTAINLY SUFFICIENT FOR SEVERE WEATHER POTENTIAL. RIGHT NOW ANTICIPATE SEEING CONVECTION INITIATE OVER NORTH-CENTRAL KANSAS...IN VICINITY OF TOPEKA/LAWRENCE AREA...BY EARLY AFTERNOON AND BEGIN TO BUILD SOUTH AND EAST ACROSS THE SGF CWA. CONVECTIVE MODE IS SOMEWHAT TROUBLESOME TO PIN DOWN...BUT LOOKS LIKE BEST BET AT THIS POINT IS ON SOMEWHAT UNFOCUSED CONVECTIVE CLUSTERS THAT THEN ORGANIZE INTO LINEAR/LEWP FORMS AS INSTABILITY AND SHEAR ALLOW. THIS SEEMS MOST PROBABLE CONSIDERING THAT 40 KT SHEAR VECTORS WILL BE GENERALLY ALIGNED PERPENDICULAR TO AXIS OF FORCING...WHICH SHOULD PROVIDE A GOOD DEGREE OF COLD POOL BALANCE. MODEL GUIDANCE IS ALSO SUGGESTING THAT SFC TO MID LEVEL THETA-E DIFFERENTIALS WILL BE IN THE 25-30 K RANGE...WHICH IS SUGGESTIVE OF A SEVERE WIND THREAT WITH THE MOST ORGANIZED CONVECTION. HIGH FREEZING LEVELS...ON THE ORDER OF 15 KT FT...SUGGESTS THAT HAIL WILL PROBABLY BE A SOMEWHAT LOWER END THREAT...THOUGH A FEW QUARTER-SIZED STONES COULD CERTAINLY BE POSSIBLE WITH THE STRONGEST CONVECTION. AS FAR AS A TORNADO THREAT IS CONCERNED...CERTAINLY DON'T THINK ITS NIL CONSIDERING MOISTURE-RICH BOUNDARY LAYER AND SUFFICIENT BULK SHEAR VALUES...BUT THINK THAT THE STRAIGHT-LINE WIND THREAT IS CERTAINLY THE BIGGEST CONCERN. PER SPC DAY 1 OUTLOOK...CAN'T DISCOUNT THE IDEA OF A LARGER SCALE FORWARD PROPAGATING MCS SWEEPING THROUGH SOUTHERN MISSOURI DURING THE EVENING HOURS. HOWEVER...CONCERNS OVER DEGREE OF DESTABILIZATION...AS WELL AS POSSIBILITY OF ATMOSPHERE BEING WORKED OVER BY EARLY AFTERNOON CONVECTION LENDS A CONSIDERABLE AMOUNT OF UNCERTAINTY AND LOW CONFIDENCE IN THIS POSSIBILITY. SHOULD DEGREE OF DESTABILIZATION BE GREATER DURING THE DAY TODAY...AND CONVECTION IS ABLE TO GET ITS ACT TOGETHER WEST OF THE CWA THIS AFTERNOON...THIS THREAT MAY NEED TO BE ADDRESSED IN MORE DETAIL BY SUBSEQUENT FORECAST SHIFTS. MONDAY AND MONDAY NIGHT... MODEL GUIDANCE IS SUGGESTING THAT EFFECTIVE FRONTAL BOUNDARY WILL ALIGN ITSELF SOMEWHERE IN THE NEIGHBORHOOD OF THE I-44 CORRIDOR BY MONDAY. FRONT LOOKS TO STALL OUT OR AT LEAST SLOW DOWN CONSIDERABLY AS IT BECOMES ALIGNED TO UPPER FLOW. THIS WILL ALSO ACT TO BRING BULK SHEAR VECTORS MORE PARALLEL TO THE FRONTAL BOUNDARY...SUGGESTING AN INCREASING THREAT OF TRAINING CONVECTION AS A RELATIVELY ROBUST SHORTWAVE APPROACHES THE AREA MONDAY. DESTABILIZATION COULD BE STRONG ENOUGH TO RESULT IN SOME LINEAR/BOWING SEGMENTS POSING A CONDITIONAL WIND THREAT TO THE AREA ON MONDAY...BUT ORIENTATION OF THE FRONT SUGGESTS THAT HEAVY RAIN MAY WELL BE THE BIGGER THREAT. THERE IS SOME SUGGESTION THAT AREAS ALONG AND JUST SOUTH OF THE FRONTAL BOUNDARY COULD SEE A CONSIDERABLE AMOUNT OF RAINFALL BY TUESDAY MORNING...BUT CONFIDENCE IS FAR TOO LOW AT THIS POINT IN TIMING/LOCATION/AMOUNTS OF RAIN TO CONSIDER HOISTING ANY SORT OF FLOOD-RELATED HEADLINE...BUT WILL CONTINUE TO MENTION THREAT IN THIS DISCUSSION AND HWO. TUESDAY THROUGH THE REMAINDER OF THE WEEK... CONVECTION EXPECTED TO COME TO AN END DURING THE DAY ON TUESDAY AS UPPER RIDING BEGINS TO BUILD INTO THE AREA FROM THE WEST. SOUTHWEST FLOW WILL INCREASE SIGNIFICANTLY ON WEDNESDAY AND THURSDAY...USHERING IN MUCH WARMER TEMPERATURES AND VERY MUGGY DEWPOINTS. AT THIS JUNCTURE...GUIDANCE DOES SUGGEST THAT HEAT INDICES COULD APPROACH ADVISORY LEVELS WEDNESDAY AND THURSDAY...AND THIS WILL CERTAINLY NEED TO BE WATCHED OVER THE NEXT FEW DAYS. RAIN CHANCES LOOK FAIRLY LOW AT THIS POINT...AND HAVE GENERALLY KEPT THINGS DRY IN THE EXTENDED AS WARM MID LEVEL TEMPERATURES SHOULD QUITE LITERALLY KEEP A CAP ON THINGS. BOXELL && .AVIATION... FOR THE 18Z TAF PACKAGE...HAVE INCLUDED VICINITY THUNDER THROUGH THE AFTERNOON AT ALL AIRPORTS AND USED TEMPO GROUPS TO HIGHLIGHT MOST LIKELY TIMING OF STORMS FROM MID TO LATE AFTERNOON AS AIR MASS OVER THE REGION BECOMES MODERATELY TO HIGHLY UNSTABLE. HAVE KEPT WIND PREDOMINANTLY FROM THE SOUTH THROUGH THE FORECAST PERIOD BUT WOULD CAUTION THAT YOU COULD SEE A TEMPORARY SHIFT TO THE NORTH OR WEST NEAR STORMS. HAVE MAINTAINED MENTION OF LOW LEVEL JET FOR TONIGHT WITH TEMPO GROUPS FOR FOG AND STRATUS FROM AROUND 09-12Z. TERRY && .SGF WATCHES/WARNINGS/ADVISORIES... MO...NONE. KS...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPRINGFIELD MO 1154 AM CDT SUN JUL 11 2010 KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-121700- 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- 1154 AM CDT SUN JUL 11 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI OZARKS AND EXTREME SOUTHEAST KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT. WEATHER HAZARDS EXPECTED... SIGNIFICANT THREAT FOR DAMAGING WIND GUSTS TO 70 MPH. ELEVATED THREAT FOR HAIL TO THE SIZE OF QUARTERS. ELEVATED LIGHTNING THREAT. LIMITED THREAT FOR TORNADOES. LIMITED FLOODING THREAT. AREAS AFFECTED AND TIMING... SEVERE THUNDERSTORMS WILL BE POSSIBLE ACROSS THE ENTIRE OUTLOOK AREA. THE BEST POTENTIAL FOR SEVERE WEATHER WILL OCCUR THIS AFTERNOON THROUGH THE EVENING DISCUSSION... STRONG TO SEVERE STORMS NORTH AND WEST OF THE AREA WILL TRACK EAST SOUTHEAST INTO THE AREA THIS AFTERNOON. THESE STORMS WILL BE CAPABLE OF DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL TO THE SIZE OF QUARTERS. AN ISOLATED TORNADO THREAT ALSO EXISTS. WHILE THE ENTIRE AREA HAS THE POTENTIAL OF SEVERE STORMS THIS AFTERNOON AND EVENING...THE INITIAL SEVERE WEATHER RISK WILL AFFECT AREAS OF WEST CENTRAL INTO CENTRAL MISSOURI EARLY THIS AFTERNOON. IN ADDITION TO THE POTENTIAL OF SEVERE STORMS...HEAVY RAIN WILL LIKELY ACCOMPANY THESE STORMS...AND SHOULD MULTIPLE THUNDERSTORMS MOVE OVER THE SAME AREA...A LOCALIZED FLOODING THREAT WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. THERE IS AN ELEVATED TO SIGNIFICANT RISK OF THUNDERSTORMS ONCE AGAIN ON MONDAY AND MONDAY NIGHT...AS WELL AS A THREAT FOR FLOODING. HEAT INDICES ARE EXPECTED TO BE IN EXCESS OF 100 DEGREES ON WEDNESDAY AND BETWEEN 95 AND 100 ON THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEEDED OVER WEST CENTRAL AND CENTRAL MISSOURI THIS AFTERNOON WITH THE POTENTIAL OF SPOTTERS BEING NEEDED FURTHER SOUTH BY LATE AFTERNOON INTO THE EARLY EVENING. && 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) LINDENBERG
The Pleasant Hill radar (KEAX), 127 km away, was scanning. The volume nearest the first event began at 18:55 UTC.
17 thunderstorm wind, 13 flash flood, 7 hail. Local standard time, as filed.
A county sheriff's deputy reported a 60 mph wind gust at the intersection of Highways BB and D.
Thunderstorm winds downed 6 to 12 inch diameter trees and detached a porch from a home.
Water was reported over the road at Highway 52 and Westview Road.
Numerous windows were broken out of vehicles and homes along Highway 52. Several roofs were also damaged with holes noted in siding.
The County Sherriff reported that a water rescue was performed where three feet of running water was over the road. No injuries were reported.
Several power lines and tree limbs were reported down in the town of Laurie and also along Seals Road in central Morgan County.
Roof damage occurred to a business on Business Highway 54 just west of the dam.
Numerous low water crossings throughout Morgan County were reported to have been flooded.
State Highway A was flooded and the road surface was damaged.
The intersection of Highways Y and Z was flooded and closed.
Thunderstorm winds snapped several 12 inch diameter trees in half, blew shingles off of homes, and downed sections of a wooden fence.
Trees and power lines were reported down just north of Waynesville on Highway 17.
An automated weather station reported a 53 knot gust.
Several large tree limbs were reported down.
Several large trees and numerous large limbs were reported down.
A few power lines were reported down.
A two foot diameter tree was reported down across Grayling Road along State Road BB north of the town of Urbana.
Street flooding caused a car to stall in high water.
Numerous low water crossings were flooded.
Metal caution and speed limit signs were blown into both lanes of construction zone on US 71.
Numerous low water crossings were flooded.
Several trees were downed and blocking Pawnee and West Glenn Roads.
Several trees were downed and blocking Pawnee and West Glenn Roads.
A few power lined were reported down.
A few power lines were reported down.
Two feet of water was flowing over the road at Glenstone Avenue and Commercial Streets.
A large tree was reported across Highways 5 South and West Highway 76.
Two feet of water was reported flowing over Marlin and Edgewood Roads.
A foot of water over was reported covering the intersection of Battlefield and Lone Pine Roads.
Three feet of water at was reported at the intersection of Manchester and Glendale Roads. Flooding also occurred in the park near the intersection.
Numerous low water crossings north of Taneyville, were reported to have been flooded.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2010Every state in 2010This day in weather historyWarnings in Missouri, July 2010
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: 247849, 247864, 247850, 252919, 241951, 241952, 252920, 241953, 241958, 241954, 247851, 252921, 252922, 252929, 247852, 247853, 247854, 247855, 247856, 247857, 241960, 252931, 252933, 247858, 241955, 252935, 241956, 247859, 247861, 247860, 247862, 252937, 247863, 252939, 252940, 252942, 252943.