Isolated thunderstorms developed during the evening hours.
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.
Isolated thunderstorms developed during the evening hours.
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 Aug 15, 1:26 PM CST, 2 hours 39 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
226 PM CDT WED AUG 15 2007
.DISCUSSION...
EXCESSIVE HEAT CONTINUING AND POSSIBLE FRONTAL PASSAGE TOMORROW ARE
THE PRIMARY FORECAST CONCERNS. IT IS ANOTHER SCORCHER TODAY WITH
TEMPS 100+ MOST LOCATIONS...WITH HEAT INDICIES BETWEEN 105 AND 110.
AS FOR TONIGHT...WITH SUCH A HOT START...TEMPS WILL BE SLOW TO COOL
OFF. EXPECT LOWS ONLY IN THE MID TO UPPER 70S...WITH LOWER 70S IN
FAR SOUTHERN SECTIONS. IN THE MEANTIME...FRONTAL BOUNDARY TO
CONTINUE VERY SLOW PROGRESS TO THE SOUTH...WITH MOST OF ACTIVITY TO
REMAIN ALONG NORTHERN FRINGES OF CWA TONIGHT...PER GFS WHICH HAS
BEST HANDLE ON TIMING. KEPT CHANCE POPS FOR NORTHEAST MO AND WEST
CENTRAL IL...WITH SLIGHT CHANCE POPS JUST SOUTH OF THAT AREA.
MAIN CONCERN FOR TOMORROW AS FRONT LINGERS OVERHEAD...IS CLOUD COVER
AND PCPN AND HOW IT WILL AFFECT TEMPS. MOISTURE...I.E. HIGHER
DEWPTS...TO POOL ALONG BOUNDARY...BUT SOME QUESTION AS TO WHEN
ACTIVITY WOULD FIRE WITH MID LEVEL CAP IN PLACE. FOR NOW WILL BE
CAUTIOUS AND EXTEND EXCESSIVE HEAT WARNING FOR AREAS ALONG AND SOUTH
OF INTERSTATE 70 FROM TONIGHT THRU 7 PM ON THURSDAY. EXPECT HIGHS IN
THE 90S FOR THE NORTH HALF OF CWA...AND 100 TO 102 FOR SOUTHERN HALF
OF CWA...WITH HEAT INDICIES BETWEEN 102 AND 108.
WILL FINALLY SEE SOME RELIEF BY THURSDAY NIGHT...WITH LOWER DEWPTS
SINKING SOUTH INTO REGION. EXPECT LOWS IN THE MID 60S TO LOWER
70S...WITH MID 70S IN METRO ST. LOUIS. JUST KEPT SLIGHT CHANCE POPS
IN FOR CWA AS BOUNDARY LINGERS NEARBY.
WEAK SFC RIDGING TRIES TO BUILD IN ON FRIDAY...WITH EVER SO SLIGHTLY
COOLER TEMPS IN THE UPPER 80S TO MID 90S. HOWEVER...WEAK BOUNDARY TO
CONTINUE TO PLAGUE US DURING THE WEEKEND AND EARLY NEXT WEEK...WITH
CHANCES OF RAIN...THOUGH SCATTERED AT BEST...RETURNING FOR SATURDAY
NIGHT THROUGH MONDAY NIGHT...AND POSSIBLY LONGER. TEMPS TO BE NEAR
NORMAL THROUGH THE EXTENDED PERIOD...WITH HIGHS IN THE UPPER 80S TO
LOWER 90S.
BYRD
&&
.AVIATION...
FOR THE 18Z TAFS...WITH SFC BNDRY E OF THE MS RVR AND WITH +12C
7H TEMPS BLANKETING AREA THINK THAT CNVTN WL HV A TUF TIME
AFFECTING ANY TAF LOCATIONS ALG MO RVR THIS AFTN. SO...HV JUST
PLAYED A BIT OF DIURNAL CU AT KCOU AND STL AREA TAF LOCATIONS TIL SNST.
KUIN TAF IS A BIT TRICKIER. WHILE IT WULD APR THAT ANY CNVTN THIS
AFTN WL ALSO BE N AND/OR E OF AIRPORT...OBVIOUS CONCERN IS FOR
NOCTURNAL STORMS THAT FORM OVR IA. REALLY HVG A TUF TIME PINNING
DOWN DETAILS OF THIS THRT...SO OPTED TO MONITOR TRENDS THIS AFTN
AND EVE TO SEE IF INCLUSION WL BE RQRD LTR THIS EVE.
TRUETT
&&
.CLIMATE...
RECORD HIGHS FOR THURSDAY.
ST LOUIS (KSTL) COLUMBIA (KCOU) QUINCY (KUIN)
THURSDAY 103/1936 102/1936 108/1936
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THURSDAY FOR AUDRAIN-BOONE-
CALLAWAY-COLE-CRAWFORD-FRANKLIN-GASCONADE-IRON-JEFFERSON-
LINCOLN-MADISON-MONITEAU-MONTGOMERY-OSAGE-REYNOLDS-ST.
CHARLES-ST. FRANCOIS-ST. LOUIS-ST. LOUIS CITY-STE.
GENEVIEVE-WARREN-WASHINGTON.
EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THIS EVENING FOR KNOX-
LEWIS-MARION-MONROE-PIKE-RALLS-SHELBY.
IL...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THURSDAY FOR BOND IL-
CALHOUN IL-CLINTON IL-FAYETTE IL-JERSEY IL-MADISON IL-
MARION IL-MONROE IL-RANDOLPH IL-ST. CLAIR IL-WASHINGTON IL.
EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THIS EVENING FOR ADAMS IL-
BROWN IL-GREENE IL-MACOUPIN IL-MONTGOMERY IL-PIKE IL.
&&
WFO LSXHAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 402 PM CDT WED AUG 15 2007 ILZ064-065-069-070-074-079-098>102-MOZ041-042-047>052-059>065- 072>075-084-085-099-161200- BOND IL-FAYETTE IL-CLINTON IL-MARION IL-WASHINGTON IL-RANDOLPH IL- CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-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- 402 PM CDT WED AUG 15 2007 ...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THURSDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST ILLINOIS...CENTRAL MISSOURI...EAST CENTRAL MISSOURI AND SOUTHEAST MISSOURI. .DAY ONE...TONIGHT AN EXCESSIVE HEAT WARNING HAS BEEN EXTENDED. SO LOOK FOR LATE AFTERNOON TEMPERATURES BETWEEN 100 AND 105 WITH HIGHER HEAT INDEX READINGS. PLEASE REFER TO THE HEAT WARNING PRODUCT FOR FURTHER INFORMATION. ISOLATED THUNDERSTORMS WILL PERSIST THROUGH EARLY EVENING OVER SOUTHEAST MISSOURI AND SOUTHERN ILLINOIS. HOWEVER...THERE ARE BETTER CHANCES FOR THUNDERSTORMS ALONG AND NORTH OF THE INTERSTATE 70 CORRIDOR TONIGHT. THE STORMS ARE NOT EXPECTED TO BE SEVERE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY DESPITE A COLD FRONT WHICH IS EXPECTED TO MOVE INTO THE AREA ON THURSDAY...IT MAY BE WEAKER AND SLOWER THAN EXPECTED. SO ANOTHER DAY OF DANGEROUS LEVELS OF HEAT WILL CONTINUE ON THURSDAY. THE EXCESSIVE HEAT WARNING HAS BEEN EXTENDED THROUGH THURSDAY EVENING. FOR FURTHER INFORMATION...PLEASE REFER TO THE WARNING PRODUCT. HEAT INDEX READINGS WILL BE AROUND 105 AGAIN ON THURSDAY. THE CHANCE FOR SCATTERED THUNDERSTORMS WILL CONTINUE ON THURSDAY AND THURSDAY NIGHT ACROSS MUCH OF THE AREA. THE CHANCE FOR STORMS WILL RETURN SATURDAY NIGHT AND CONTINUE THROUGH MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT. && FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1 ILZ058>060-095>097-MOZ018-019-026-027-034>036-161200- GREENE IL-MACOUPIN IL-MONTGOMERY IL-ADAMS IL-BROWN IL-PIKE IL- KNOX-LEWIS-SHELBY-MARION-MONROE-RALLS-PIKE- 402 PM CDT WED AUG 15 2007 ...EXCESSIVE HEAT WARNING UNTIL 7 PM CDT THIS EVENING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL ILLINOIS...SOUTHWEST ILLINOIS...WEST CENTRAL ILLINOIS AND NORTHEAST MISSOURI. .DAY ONE...TONIGHT DANGEROUS HEAT WILL CONTINUE FOR A FEW MORE HOURS THIS EVENING... WITH HEAT INDEX READINGS IN THE 100 TO 105 RANGE. FOR MORE INFORMATION REFER TO THE EXCESSIVE HEAT WARNING PRODUCT. THERE IS ALSO A CHANCE FOR THUNDERSTORMS ALONG AND NORTH OF THE INTERSTATE 70 CORRIDOR TONIGHT. THE STORMS ARE NOT EXPECTED TO BE SEVERE. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY A COLD FRONT WILL MOVE INTO THE AREA ON THURSDAY...KEEPING TEMPERATURES SLIGHTLY COOLER THAN PAST COUPLE OF DAYS. OTHERWISE...THE CHANCE FOR SCATTERED THUNDERSTORMS WILL CONTINUE ON THURSDAY AND THURSDAY NIGHT ACROSS MUCH OF THE AREA. THE CHANCE FOR STORMS WILL RETURN SATURDAY NIGHT AND CONTINUE THROUGH MONDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED TONIGHT. && FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1 BYRD
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 214 PM CDT WED AUG 15 2007 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-152130- ADAMS IL-AUDRAIN-BOND IL-BOONE-BROWN-CALHOUN IL-CALLAWAY-CLINTON IL- COLE-CRAWFORD-FAYETTE IL-FRANKLIN-GASCONADE-GREENE IL-IRON-JEFFERSON- JERSEY IL-KNOX-LEWIS-LINCOLN-MACOUPIN IL-MADISON-MADISON IL-MARION- MARION IL-MONITEAU-MONROE-MONROE IL-MONTGOMERY-MONTGOMERY IL-OSAGE- PIKE-PIKE IL-RALLS-RANDOLPH IL-REYNOLDS-SHELBY-ST CHARLES- ST CLAIR IL-ST FRANCOIS-ST LOUIS-ST LOUIS CITY-STE GENEVIEVE-WARREN- WASHINGTON-WASHINGTON IL- 214 PM CDT WED AUG 15 2007 ...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... VERY HOT WEATHER CONTINUES ACROSS THE REGION THIS AFTERNOON. AT 2 PM TEMPERATURES AT MANY LOCATIONS HAD ALREADY CLIMBED ABOVE 100 DEGREES...AND READINGS ARE LIKELY TO GO UP SEVERAL MORE DEGREES BY 5 PM. THIS IS A DANGEROUS SITUATION...ESPECIALLY FOR THOSE LIVING WITHOUT AIR CONDITIONING. THIS DANGER IS COMPOUNDED IF THOSE WITHOUT AIR CONDITIONING ARE CHRONICALLY ILL...ELDERLY...OR VERY YOUNG. IF YOU HAVE FRIENDS...RELATIVES...OR NEIGHBORS WITHOUT AIR CONDITIONING...CHECK ON THEM FREQUENTLY THIS AFTERNOON AND THIS EVENING. THEIR HEALTH AND WELL-BEING MAY DEPEND UPON YOUR VISIT. MAKE SURE TO USE AIR CONDITIONING IF YOU HAVE IT...AND DO NOT LET THE EXTRA EXPENSE OF AIR CONDITIONING DETER YOU FROM USING IT. MANY LOCAL AGENCIES AND UTILITIES CAN PROVIDE FINANCIAL ASSISTANCE IF COST IS A CONCERN. IF YOU DONT HAVE AIR CONDITIONING...TRY TO GO SOMEWHERE SO YOU CAN SPEND TIME IN A COOLER ENVIRONMENT...SUCH AS A HOME OF A FRIEND OR NEIGHBOR...OR A LOCAL MALL. IN ADDITION...MANY TOWNS AND CITIES HAVE OPENED COOLING CENTERS TO PROVIDE RELIEF FROM THE HEAT. PARENTS SHOULD...NEVER...LEAVE THEIR CHILDREN UNATTENDED IN A CAR DURING THIS TIME OF YEAR. TEMPERATURES INSIDE A VEHICLE CAN EASILY REACH 150 DEGREES WITHIN SEVERAL MINUTES...WHICH CAN HAVE DEADLY CONSEQUENCES FOR A BABY OR YOUNG CHILD. TRUETT
The St Louis radar (KLSX), 130 km away, was scanning. The volume nearest the first event began at 22:04 UTC.
1 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds blew down several trees and large tree limbs. Some of the tree limbs damaged soffits and guttering on one house in town.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2007Every state in 2007This day in weather historyWarnings in Missouri, August 2007
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: 58260.