A frontal boundary moved through the region, triggering showers and thunderstorms. There were numerous reports of damaging winds and large hail with these storms.
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 LSX wrote it up.
A frontal boundary moved through the region, triggering showers and thunderstorms. There were numerous reports of damaging winds and large hail with these storms.
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 Jul 7, 5:21 PM CST, 24 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE ST LOUIS MO 621 PM CDT Mon Jul 7 2014 .UPDATE: Issued at 617 PM CDT Mon Jul 7 2014 Scattered thunderstorms are developing across the St. Louis Metro as hot and unstable airmass interacts with remnant outflow boundary stretching from northwest St. Charles County to south St. Louis City. These storms could produce large hail or locally damaging winds. The greater threat of severe weather remains with the expected line of storms later this evening and overnight from the northwest. CVKING && .SHORT TERM: (Through Late Tonight) Issued at 341 PM CDT Mon Jul 7 2014 (Tonight) Main concern continues to be the potential for severe weather late tonight...specifically damaging winds. Not much change from previous thinking that thunderstorms will initiate late this afternoon and early this evening over Nebraska and Kansas along a surface front as a shortwave trough approaches the area from the northwest. These storms will increase in intensity and congeal into an MCS as they move southeast along the front into Missouri during the late evening and overnight hours. Strong low level moisture convergence along the front along with forcing with the shortwave will support the MCS. Decent values MUCAPE and low level and deep layer shear values will allow the MCS to stay severe into central and eastern Missouri and adjacent sections of Illinois into the overnight hours. In addition, precipitable water still suggest that the MCS will produce very heavy rainfall rates. However given progressive nature of MCS and high flash flood guidance numbers will just mention locally heavy rainfall in the HWO at this time. Britt .LONG TERM: (Tuesday through Next Monday) Issued at 341 PM CDT Mon Jul 7 2014 (Tuesday through Thursday) On Tuesday, the front will be moving south and out of the CWA about the time that thunderstorms will be initiating during the early-mid afternoon hours. There is still some potential that one or two of these storms could become severe before they move out of the CWA during the late afternoon hours. The front will then move well south of the area Wednesday into Thursday as the flow becomes northwesterly aloft. The area will lie under mainly subsidence during this period, so have kept these two days dry. 850 mb temperatures will be between 12-18C promising below normal temperatures. (Friday through next Monday) Warm front is still on track to move through the area on Friday and Saturday causing temperatures to climb back closer to normal. The front will keep scattered thunderstorms in the forecast. 850 mb temperatures of 18-20C call for temperatures at or just above normal. ECMWF sets up northwesterly flow over the area quicker than the GFS on Saturday and Sunday, so consequently it is trying to bring a cold front through the CWA faster. This solution is faster than in previous runs, so went with the slower idea with a cold front entering the northern part of the CWA on Sunday morning and move it south across the area through Monday. Will continue the chance of thunderstorms into early next week. Britt && .AVIATION: (For the 18z TAFs through 18z Tuesday Afternoon) Issued at 1235 PM CDT Mon Jul 7 2014 Focus will be TSRA this afternoon and tonight. A surface fnt remains across the region. TSRA are expected to develop along and just S of this fnt with SUS/CPS most likely to be impacted by storms. Large TSRA complex still expected to develop across NEB/KS region late this afternoon into the evening. This MCS is expected to track SE impacting all terminals late this evening into the early morning hours Tues. This MCS will be capable of producing severe wind gusts in excess of 60 kts. TSRA shud diminish by sunrise Tues with VFR conditions expected thru the morning. Specifics for KSTL: Chances for TSRA continue thru this afternoon. Still expect a large MCS to move thru the area during the early morning hours Tues. Severe wind gusts in excess of 60 kts will be possible with this MCS. TSRA shud diminish by sunrise leaving the remainder of the TAF period as VFR. Tilly && .LSX WATCHES/WARNINGS/ADVISORIES: MO...NONE. IL...NONE. && WFO LSX
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 359 PM CDT MON JUL 7 2014 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-081115- 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 MO- LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-BOONE MO- AUDRAIN MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO- LINCOLN MO-GASCONADE MO-WARREN MO-ST. CHARLES MO-FRANKLIN MO- ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO- WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO- MADISON MO-REYNOLDS MO- 359 PM CDT MON JUL 7 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. .DAY ONE...TONIGHT THUNDERSTORMS ARE LIKELY ACROSS THE AREA TONIGHT. A FEW OF THESE STORMS WILL BE SEVERE WITH WIND GUSTS IN EXCESS OF 60 MPH. LARGE HAIL...ISOLATED TORNADOES AND LOCALLY HEAVY RAINFALL ARE ALSO POSSIBLE. MAJOR RIVER FLOODING WILL BE TAKING PLACE AT SEVERAL LOCATIONS ON THE MISSISSIPPI RIVER NORTH OF GRAFTON. PLEASE SEE THE APPROPRIATE FLOOD WARNING OR STATEMENT FOR SPECIFIC DETAILS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE CHANCE FOR THUNDERSTORMS WILL CONTINUE TUESDAY AND TUESDAY EVENING. SEVERE STORMS ARE POSSIBLE ACROSS SOUTHEAST MISSOURI. THE CHANCE OF THUNDERSTORMS WILL RETURN THURSDAY NIGHT AND CONTINUE THROUGH SUNDAY. MAJOR RIVER FLOODING WILL EXPAND TO MANY LOCATIONS ON THE MISSISSIPPI RIVER NORTH OF GRAFTON FOR MUCH OF THE WEEK. MAJOR FLOODING IS ALSO FORECAST ALONG ON THE CUIVRE RIVER AT OLD MONROE AND ALONG THE ILLINOIS RIVER AT HARDIN. PLEASE SEE THE APPROPRIATE FLOOD WARNING OR STATEMENT FOR SPECIFIC DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE. BRITT
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
326 PM CDT MON JUL 07 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0322 PM HAIL SELMAVILLE 38.61N 89.00W
07/07/2014 E1.00 INCH MARION IL TRAINED SPOTTER
&&
DYEPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
333 PM CDT MON JUL 07 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0326 PM TSTM WND GST KELL 38.49N 88.90W
07/07/2014 E45 MPH MARION IL TRAINED SPOTTER
&&
GOSSELINPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
353 PM CDT MON JUL 07 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0318 PM TSTM WND DMG CENTRALIA 38.52N 89.13W
07/07/2014 MARION IL BROADCAST MEDIA
TREE DOWN ON POWER LINE AS WELL AS NUMEROUS LARGE TREE
LIMBS DOWN.
&&
GOSSELINPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
453 PM CDT MON JUL 07 2014
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0450 PM HEAVY RAIN EDWARDSVILLE 38.80N 89.97W
07/07/2014 M2.43 INCH MADISON IL TRAINED SPOTTER
THE RAIN WAS MEASURED JUST EAST OF EDWARDSVILLE
ILLINOIS.
&&
DYESPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 633 PM CDT MON JUL 7 2014 ILZ098-MOZ052-061-080015- CALHOUN IL-LINCOLN MO-ST. CHARLES MO- 633 PM CDT MON JUL 7 2014 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN ST. CHARLES... SOUTHEASTERN LINCOLN AND SOUTHERN CALHOUN COUNTIES UNTIL 715 PM CDT... AT 633 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 5 MILES NORTH OF WENTZVILLE...MOVING EAST AT 15 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... ST. PAUL... ST. CHARLES... THIS STORM WILL ALSO IMPACT... INTERSTATE 70 IN MISSOURI FROM EXIT 222 TO EXIT 228. CVKING
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 634 PM CDT MON JUL 7 2014 MOZ063-064-080015- ST. LOUIS MO-ST. LOUIS CITY MO- 634 PM CDT MON JUL 7 2014 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN ST. LOUIS CITY AND SOUTHERN ST. LOUIS COUNTIES UNTIL 715 PM CDT... AT 633 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR VALLEY PARK...MOVING EAST AT 25 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... FENTON... KIRKWOOD... SUNSET HILLS... OAKLAND... CRESTWOOD... GLENDALE... WEBSTER GROVES... LAKESHIRE... AFFTON... SHREWSBURY... THIS STORM WILL AFFECT CASTLEWOOD STATE PARK. THIS STORM WILL ALSO IMPACT... INTERSTATE 44 FROM EXIT 269 TO EXIT 277. CVKING
The St Louis radar (KLSX), 29 km away, was scanning. The volume nearest the first event began at 23:44 UTC.
24 thunderstorm wind, 5 hail. Local standard time, as filed.
There were numerous reports of large hail across southern St. Louis County. The largest hailstones were two inches in diameter which was reported in Affton. There were reports of quarter to golfball sized hail in Shrewsbury and Lemay.
There were numerous reports of large hail across the southern portions of the City of St. Louis.
Within 20 minutes of the first storm a second severe thunderstorm moved through far southern portions of St. Louis County. There were numerous reports of quart to golfball sized hail. Some of the towns affected were Mehlville and Oakville.
A swath of large hail fell between House Springs and just northwest of Imperial.
Large hail fell over the Cedar Hill area.
Thunderstorm winds blew down numerous large tree limbs and power lines across far southern Knox County.
Thunderstorm winds blew down numerous large tree limbs between Bethel and Shelbyville. Also, a large tree was blown across a gravel road 3 miles southwest of Bethel. Some shingles were blown off of a house 5 miles north of Bethel.
Thunderstorm winds blew down several large tree limbs and power lines in La Belle.
A line of severe thunderstorms moved through Columbia and tracked southeast through rest of county. A 67 mph wind gust was measured at University of Missouri Jefferson Farm and Gardens just southeast of town on East New Haven Road. Also, the ASOS at Columbia Regional Airport measured a 58 mph wind gust. Numerous trees, power lines and tree limbs were blown down, especially on the southern sections of Columbia. A couple of the fallen trees blocked roads in the area.
Thunderstorm winds blew down several large tree limbs as well as a stop sign at the intersection of U.S. Highway 61 and Highway HH.
Thunderstorm winds blew in several windows on businesses downtown as well as blowing down a traffic light.
Thunderstorm winds blew down several large trees, numerous tree limbs and power lines around town. Seven power poles along U.S. Highway 54 were blown over knocking power out to several businesses in the area. One tree limb fell onto an unoccupied car causing minor damage and another limb fell onto a house causing minor roof and siding damage. Some of the fallen limbs and power lines briefly blocked roadways. No injuries were reported with this storm.
As a line of thunderstorms moved across Callaway County, thunderstorm winds blew down numerous tree limbs and power lines across the county.
Thunderstorm winds blew several large trees and numerous large tree limbs and power lines across northern Cole County. In Wardsville, two thirds of the gymnasium roof was damaged at Blair Oaks High School.
Thunderstorm winds blew down several large trees, numerous tree limbs and power lines. One tree was blown down across Highway 161 near intersection with Highway V.
Thunderstorm winds blew down numerous trees, tree limbs and power lines. Also, a shed was destroyed in town. One building in town sustained moderate roof damage.
Thunderstorm winds blew down numerous power lines between Center and New London.
Thunderstorm winds blew down a tree blocking Route A in Bonnots Mill. Also, a tree was blown over onto a house in town causing moderate damage.
Thunderstorm winds blew down several trees along Route Y southwest of Bowling Green. Also, several trees were blown down around Bowling Green.
Thunderstorm winds blew down several power lines in Meta.
Thunderstorm winds blew over a large tree onto Highway J just southwest of intersection with Highway 100.
Thunderstorm winds blew over a large tree onto Highway A near intersection with Pin Oak Church Road.
Thunderstorm winds blew over several mail boxes in Linn.
Thunderstorm winds blew down a large tree onto a house in Troy causing moderate damage. Several trees were blown down about two miles southwest of Moscow Mills on Highway U. A couple of fences were destroyed in this area as well.
Thunderstorm winds blew down numerous trees and tree limbs in Wentzville and Lake St. Louis.
Thunderstorm winds blew down numerous trees in Elsberry. One large tree fell onto two unoccupied vehicles and a house.
Thunderstorm winds blew down numerous large tree limbs in Chesterfield and Olivette.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2014Every state in 2014This day in weather historyWarnings in Missouri, July 2014
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: 539679, 539681, 539682, 539692, 539687, 539695, 539694, 539696, 539697, 539699, 539702, 539707, 539708, 539709, 540244, 540245, 540246, 540249, 540254, 540251, 540255, 540256, 540252, 540257, 540259, 540261, 540262, 540260, 540263.