Hail, Jefferson
- When
- June 10, 8:20 PM CST
- Where
- Jefferson County, Arnold
- Measured
- 0.75 in hail
- Reported by
- Broadcast Media
- Coordinates
- 38.430, -90.370
Flash Flooding and Hail in Missouri, June 10 to 11, 2009
A frontal boundary in the area triggered showers and thunderstorms. Some of the storms produced severe weather and flash flooding.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $3,000
- Crop damage
- None recorded
- Events
- 7
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.
What happened
The episode as NWS LSX wrote it up.
A frontal boundary in the area triggered showers and thunderstorms. Some of the storms produced severe weather and flash flooding.
What forecasters said that day
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 St. Louis, MO wrote its last area forecast discussion before the first event at Jun 10, 6:02 PM CST, 2 hours 18 minutes earlier.
Area forecast discussion, Jun 10, 6:02 PM CST, 2 hours 18 minutes before
AREA FORECAST DISCUSSION...UPDATED AVIATION
NATIONAL WEATHER SERVICE ST LOUIS MO
702 PM CDT WED JUN 10 2009
.DISCUSSION...
/325 PM CDT WED JUN 10 2009/
FRONTAL BOUNDARY CONTINUES TO LINGER OVER FORECAST AREA TODAY...
EXTENDING FROM SURFACE LOW OVER SOUTHEASTERN KS...JUST NORTH OF
JOPLIN TO JUST SOUTH OF COU...THEN ALONG I-70 CORRIDOR INTO
ILLINOIS. IN THE MEANTIME...CONVECTIVE SYSTEM THAT DEVELOPED OVER
WESTERN OK...AS EMBEDDED SHORTWAVE LIFTS OUT OF NEW MEXICO...IS
SLIDING TO THE NORTHEAST AND SHOULD APPROACH SW MO IN THE NEXT
COUPLE OF HOURS. ALSO...MAJOR BREAKS IN THE CLOUD OVER OVER SOUTHERN
HALF OF MO...HAS ALLOWED SB CAPES TO APPROACH 5000 J/KG WITH LITTLE
OR NO CIN. SO IN ADDITION TO THE STORMS APPROACHING MO...SHOULD SEE
STORMS DEVELOP ALONG AND SOUTH OF I-70 CORRIDOR IN THE NEXT COUPLE OF
HOURS WITH THE MAIN THREATS BEING LARGE HAIL AND DAMAGING WINDS.
SYSTEM WILL PROBABLY PRODUCE POCKETS OF HEAVY RAIN OVER CENTRAL AND
SOUTHERN AREAS OF THE FA TONIGHT...BUT PROGRESSIVE NATURE OF SYSTEM
SHOULD LESSEN FLASH FLOOD THREAT. THE ONE EXCEPTION TO THIS IS IN
THE FAR S COUNTIES WHERE AMOUNTS SHOULD BE THE HEAVIEST...AND
PERHAPS MORE IMPORTANTLY POCKETS OF HEAVY RAIN HAVE OCCURRED OVER
THE LAST 2 NIGHTS...IE PARTS OF SOUTHERN CRAWFORD...REYNOLDS...IRON
...AND MADISON COUNTIES. BECAUSE OF THIS...WILL BE ISSUING A FLASH
FLOOD WATCH FOR MUCH OF SOUTHEAST MISSOURI FOR TONIGHT.
BY TOMORROW MORNING...SYSTEM WILL BE EXITING REGION...BUT COULD SEE
DECENT ACTIVITY...SO KEPT LIKELY POPS FOR EASTERN TWO THIRDS OF CWA
THROUGH 18Z...THEN BACK OFF TO SLIGHT CHANCE POPS IN THE NW HALF AND
CHANCE POPS IN SOUTHEAST HALF OF CWA FOR THE AFTERNOON HOURS.
DEPENDING ON CLOUD COVER AND PCPN NOT REAL CONFIDENT ON HOW TO
HANDLE TEMPS. FOR NOW WILL SEE LOWER 70S IN THE FAR NORTH AND LOWER
80S IN THE FAR SOUTH.
THURSDAY NIGHT THROUGH FRIDAY NIGHT...WE SHOULD DRY OUT...THOUGH
KEPT SLIGHT CHANCE POPS FOR PORTIONS OF THE AREA. LOWS THURSDAY
NIGHT WILL BE IN THE MID 50S TO LOWER 60S...HIGHS ON FRIDAY WILL BE
IN THE MID 70S TO LOWER 80S...AND LOWS FRIDAY NIGHT WILL BE IN THE
UPPER 50S TO LOWER 60S.
EXTENDED MODELS CONTINUE TO BE ALL OVER THE PLACE...SO JUST WENT
WITH STATUS QUO...MAKING ONLY MINOR ADJUSTMENTS TO GOING GRIDS. HAVE
LOW CHANCE POPS FOR PORTIONS OF THE FORECAST AREA SATURDAY THROUGH
MONDAY NIGHT...THEN DRY FOR REST OF EXTENDED AT THIS TIME.
BYRD
&&
.AVIATION...
/639 PM CDT WED JUN 10 2009/
FOR THE 00Z TAFS...
CONVECTION DVLPG AHD OF EJECTING SW TROF WILL REACH THE TERMINALS
OVERNIGHT...AFFECTING COU AFTER 00Z AND STL/SUS BY 03Z. WINDS WILL
GENERALLY BE LGT AND VRB INVOF QUASISTATIONARY FRONT DRAPED ACROSS
MO AND IL. CIGS/VSBYS WILL LOWER IN PCPN TONIGHT AND IFR CIGS ARE
LIKELY INVOF FRONT TOMORROW MORNING. ADDITIONALLY...TAF SITES WILL
BE MONITORED FOR POTENTIAL FOG FORMATION IF AREAS OF CLRG DVLP
OVERNIGHT.
KANOFSKY
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...FLASH FLOOD WATCH THROUGH THURSDAY MORNING FOR CRAWFORD-IRON-
MADISON-REYNOLDS-ST. FRANCOIS-WASHINGTON.
IL...NONE.
&&
WFO LSXHazardous weather outlook, Jun 10, 5:48 PM CST, 2 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 648 PM CDT WED JUN 10 2009 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-111115- GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL- MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL- CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX-LEWIS- SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE- CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN- ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON- ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS- 648 PM CDT WED JUN 10 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. .DAY ONE...TONIGHT SEVERE THUNDERSTORMS ARE LIKELY TONIGHT ALONG AND SOUTH OF A COLUMBIA TO PITTSFIELD LINE. LARGE HAIL...DAMAGING WINDS AND TORNADOES ARE POSSIBLE WITH THESE THUNDERSTORMS. IN ADDITION...LOCALLY HEAVY RAINFALL AND FLASH FLOODING WILL BE POSSIBLE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE AGAIN POSSIBLE THURSDAY. SOME OF THE STORMS ACROSS THE SOUTHERN OZARKS MAY BE SEVERE WITH LARGE HAIL AND DAMAGING WINDS THE PRIMARY HAZARDS. THUNDERSTORMS RETURN TO THE FORECAST SATURDAY AND CONTINUE INTO NEXT WEEK. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ASKED TO RELAY ALL SEVERE WEATHER REPORTS TO THE NATIONAL WEATHER SERVICE IN ST. LOUIS. && FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1 CVKING
In the hours before
Special weather statement, Jun 10, 8:01 PM CST, 19 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 901 PM CDT WED JUN 10 2009 ILZ102-MOZ065-110230- JEFFERSON MO-MONROE IL- 901 PM CDT WED JUN 10 2009 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL JEFFERSON AND WESTERN MONROE COUNTIES UNTIL 930 PM CDT... AT 859 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR PEVELY...MOVING NORTHEAST AT 25 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...PEVELY...ANTONIA... BARNHART...ARNOLD...VALMEYER...FOUNTAIN...OTTO...HARRISONVILLE... KIMMSWICK AND NEW HANDOVER. THIS STORM MAY INTENSIFY....AND A TORNADO WATCH IS IN EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS....FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. BRITT
Local storm report, Jun 10, 8:04 PM CST, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
904 PM CDT WED JUN 10 2009
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION.. ST.. ...SOURCE....
..REMARKS..
0900 PM HAIL HERMANN 38.70N 91.44W
06/10/2009 E0.25 INCH GASCONADE MO TRAINED SPOTTER
&&
EVENT NUMBER LSX0902314
BYRDSpecial weather statement, Jun 10, 8:12 PM CST, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 912 PM CDT WED JUN 10 2009 MOZ062-073-074-084-110300- FRANKLIN MO-IRON MO-ST. FRANCOIS MO-WASHINGTON MO- 912 PM CDT WED JUN 10 2009 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN FRANKLIN...WASHINGTON... ST. FRANCOIS AND IRON COUNTIES UNTIL 1000 PM CDT... AT 912 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF SULLIVAN TO 10 MILES SOUTH OF ANTHONIES MILL TO BIXBY...AND MOVING EAST AT 40 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...SULLIVAN... ANTHONIES MILL...ST. CLAIR...POTOSI...BISMARCK...PARKWAY... BELLEVIEW...OLD MINES...MINERAL POINT...RICHWOODS...IRONDALE...IRON MOUNTAIN...PILOT KNOB...LONEDELL...SHIRLEY...STANTON...LATTY... BELGRADE...CALEDONIA AND PINEY PARK. THIS STORM MAY INTENSIFY....AND A TORNADO WATCH IS IN EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS....FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. BRITT
Special weather statement, Jun 10, 8:14 PM CST, 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 914 PM CDT WED JUN 10 2009 MOZ051-052-060-061-110300- LINCOLN MO-MONTGOMERY MO-ST. CHARLES MO-WARREN MO- 914 PM CDT WED JUN 10 2009 ...SIGNIFICANT WEATHER ADVISORY FOR LINCOLN...MONTGOMERY...WARREN AND ST. CHARLES COUNTIES UNTIL 1000 PM CDT... AT 913 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS NEAR WARRENTON...MOVING EAST AT 35 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...WARRENTON...WRIGHT CITY...TROY...WENTZVILLE...LAKE ST. LOUIS...DARDENNE PRAIRIE... OFALLON...ST. PAUL...WELDON SPRING...COTTLEVILLE...ST. PETERS...ST. CHARLES...ELSBERRY...MARTHASVILLE...TRUESDALE...DUTZOW...HAWK POINT...AUGUSTA...NEW MELLE AND DAVIS. THIS STORM MAY INTENSIFY....AND A TORNADO WATCH IS IN EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS....FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. CARNEY
Local storm report, Jun 10, 8:19 PM CST, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
919 PM CDT WED JUN 10 2009
..TIME.. ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE.. ....MAG.... ..COUNTY LOCATION.. ST.. ...SOURCE....
..REMARKS..
0915 PM FLASH FLOOD 2 S ST. ANN 38.70N 90.39W
06/10/2009 ST. LOUIS MO EMERGENCY MNGR
STREET FLOODING AT PAGE AND LINDBURG. ALSO...STREET
FLOODING AT LINDBURG AND LADUE.
&&
EVENT NUMBER LSX0902315
BYRDSpecial weather statement, Jun 10, 8:20 PM CST, 0 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 920 PM CDT WED JUN 10 2009 MOZ065-110245- JEFFERSON MO- 920 PM CDT WED JUN 10 2009 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN JEFFERSON COUNTY UNTIL 945 PM CDT... AT 917 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR DITTMER...OR NEAR CEDAR HILL...MOVING EAST AT 30 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CEDAR HILL...BYRNES MILL...HIGH RIDGE...ANTONIA...BARNHART...ARNOLD...HOUSE SPRINGS... SCOTSDALE...OTTO...PARKDALE AND KIMMSWICK. THIS STORM MAY INTENSIFY....AND A TORNADO WATCH IS IN EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS....FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. BRITT
The radar
The St Louis radar (KLSX), 40 km away, was scanning. The volume nearest the first event began at 02:21 UTC.
Event by event
3 flash flood, 2 hail, 2 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, St. Louis
- When
- June 10, 8:44 PM CST
- Where
- St. Louis County, (Stl)lambert Fld St
- Measured
- 52 kt (60 mph) measured gust
- Reported by
- ASOS
- Coordinates
- 38.750, -90.370
Thunderstorm Wind, Lincoln
- When
- June 10, 9:00 PM CST
- Where
- Lincoln County, 2.82 mi W of Winfield
- Measured
- 48 kt (55 mph) estimated gust
- Property damage
- $3,000
- Reported by
- Fire Department/Rescue
- Coordinates
- 38.994, -90.802
A large rotten tree was blown down onto the roof of a trailer causing moderate damage.
Flash Flood, Jefferson
- When
- June 10, 9:00 PM CST to June 11, 1:30 AM CST
- Where
- Jefferson County, 1.47 mi NNE of Breezy Hgts to 1.49 mi NNW of Wickes
- Cause
- Heavy Rain
- Reported by
- Amateur Radio
- Coordinates
- 38.419, -90.458
Up to two inches of rain with locally heavier amounts fell over northern Jefferson county. Lonedell Road had water flowing over it in spots due to the flash flooding.
Flash Flood, Lincoln
- When
- June 10, 9:10 PM CST to 10:10 PM CST
- Where
- Lincoln County, 1.45 mi WNW of Old Monroe to 0.55 mi ENE of Chain of Rocks
- Cause
- Heavy Rain
- Reported by
- Fire Department/Rescue
- Coordinates
- 38.936, -90.776
Up to two inches of rain fell in a short amount of time causing flash flooding. Three feet of water was over Highway C west of Old Monroe. A water rescue had to be performed when a car drove into the flood waters and was washed into a ditch. No injuries were reported.
Hail, Marion
- When
- June 10, 9:40 PM CST
- Where
- Marion County, Hannibal
- Measured
- 0.88 in hail
- Reported by
- Trained Spotter
- Coordinates
- 39.700, -91.380
Flash Flood, St. Louis
- When
- June 10, 9:46 PM CST to June 11, 1:30 AM CST
- Where
- St. Louis County, Fenton to 0.38 mi SE of Morschels
- Cause
- Heavy Rain
- Reported by
- County Official
- Coordinates
- 38.520, -90.430
Up to three inches of rain fell in a short amount of time causing flash flooding. Southbound lanes of Highway 141 were closed for a time at the intersection with Interstate 44 due to several feet of water over the roadway.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Damaging Winds in Texas, June 10, 2009
- Tornadoes and Flash Flooding in Texas, June 10, 2009
- Flash Flooding and Flood in Texas, June 10 to 11, 2009
- Hail and Lightning Strike in Kentucky, June 10, 2009
- Tornadoes and Flash Flooding in Missouri, June 10, 2009
- Hail and Damaging Winds in Tennessee, June 10, 2009
- Hail and Damaging Winds in Oklahoma, June 10, 2009
- Flash Flooding in Pennsylvania, June 10, 2009
- Tornadoes and Damaging Winds in Oklahoma, June 10, 2009
- Tornadoes and Flash Flooding in Nebraska, June 10, 2009
- Tornadoes and Flash Flood in Kentucky, June 10 to 11, 2009
- Lightning Strike in South Carolina, June 10, 2009
More
Every storm in Missouri in 2009Every state in 2009This day in weather historyWarnings in Missouri, June 2009
Sources
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: 183429, 183430, 183452, 183460, 183463, 183467, 183470.