1 heat, 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 Kansas City, MO wrote its last area forecast discussion before the first event at Jul 9, 1:00 AM CST, 5 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 200 AM CDT WED JUL 9 2003 200 AM... MAIN CONCERN IS THE THREAT OF STRONG CONVECTION THIS AFTERNOON AND THIS EVENING. WEAK...NEARLY STATIONARY BOUNDARY CONTINUED TO BE LOCATED ALONG THE MISSOURI AND IOWA BORDER. CONVECTION HAS CEASED ALONG THE BOUNDARY DUE TO NOCTURNAL COOLING...INCREASING CAP AND ONLY WEAK THETAE ADVECTION IN VICINITY OF THE BOUNDARY. EXPECT THETAE ADVECTION TO INCREASE DURING THE NEXT FEW HOURS...BUT CAP ALSO INCREASING AS PER MESOETA. MESOETA GENERATES PRECIPITATION THIS MORNING ACROSS NORTHERN MISSOURI IN RESPONSE TO A OUTFLOW BOUNDARY FROM CURRENT NEBRASKA COMPLEX. OUTLFOW BOUNDARY SEEN IN CURRENT OBSERVATIONS AND RADAR...BUT CONVECTION MAY BE TOUGH TO GENERATE DUE TO CAP...ESPECIALLY NORTHWEST ZONES THIS MORNING. WILL MAINTAIN LOW POP EXTREME NORTHERN ZONES THIS MORNING DUE TO UNCERTAINTITY. BELIEVE MESOETA CHARGES THIS OUTFLOW BOUNDARY TOO FAR SOUTH INTO MISSOURI BY 18Z...TO I-70. EXPECT BOUNDARY TO DRIFT INTO EXTREME NORTHERN MISSOURI AND MAY SERVE TO REINFORCE FRONT CURRENTLY LOCATED ALONG THE BORDER. THIS BOUNDARY MAY SERVE AS A FOCUS FOR DEVELOPMENT THIS AFTERNOON IF IT CAN HOLD ITS POSITION WHICH MAY BE TOUGH DUE TO RELATIVELY STRONG SURFACE LOW DEVELOPMENT EXPECTED IN NORTHERN IOWA...AND STRONG AFTERNOON HEATING. OTHERWISE...ETA/AVN MODELS SIMILIAR IN DROPPING STRONG UPPER TROF INTO THE WESTERN GREAT LAKES BY THIS EVENING. TIMING OF THE FRONT IS SIMILIAR...REACHING A STJ TO BETHANY LINE BY 00Z...AND QUICKLY EXITING THE SOUTHEAST CWA BY 09Z. ALTHOUGH CAP RATHER STRONG...FRONT COMING THROUGH AT TIME AT MAX HEATING. PLAN TO BOOST POPS A LITTLE MORE AS FEEL CONDITIONS ARE FAVORABLE FOR AT LEAST SCATTERED DEVELOPMENT OF THUNDERSTORMS ALONG THE FRONT BY MID TO LATE AFTERNOON. SOME STORMS WILL LIKELY BE SEVERE WITH INCREASING SHEAR. MESOETA INSTABILITY AND CAPE VALUES LOOK A LITTLE UNDERDONE...LIKELY DUE TO UNLIKELY DEVELOPMENT OF MORNING AND EARLY AFTERNOON CONVECTION WELL SOUTH INTO THE CWA...KEEPING ITS SURFACE TEMPERATURES TOO COLD. EXPECT CAPE VALUES IN EXCESS OF 3000 J/KG. PRIMARY THREAT FROM THE THUNDERSTORM ACITIVITY WILL BE LARGE HAIL AND DAMAGING WINDS. HOWEVER...IF OUTFLOW BOUNDARY HOLDS ALONG THE BOUNDARY...ENOUGH STORM RELATIVE HELICITY MAY SUPPORT AN ISOLATED SUPERCELL. IN ADDITION...HAVE SOME CONCERN ABOUT HEAT INDICES FOR TODAY. HOWEVER...BELIEVE HEAT INDICES WILL FALL JUST BELOW CRITERIA FOR WEST CENTRAL ZONES...BETWEEN 100 AND 105. OTHERWISE...COOLER AND DRIER AIR TO SPREAD ACROSS THE CWA LATER TONIGHT WITH DRIER AND COOLER CONDITIONS FOR THURSDAY AND FRIDAY. DB 300 PM... NEXT CONCERN IS THE TIMING OF SEVERE WX WEDNESDAY AFTERNOON. MESOETA SOUNDING SHOWS CAPES BUILD TO 3000 - 4000 J/KG BY WED AFTERNOON. ETA SHOW SURFACE FRONT ENTERING IN NW MO AROUND 18Z WED. WIND PROFILE SHOWS VERY LITTLE VEERING IN THE WINDS WITH HEIGHTS. 700MB TEMPS WARMING BY 12Z WED IN WEST...SO CAPPING WILL HOLD OFF ACTIVITY TIL AROUND 18Z WHEN FRONT MOVES DOWN FROM IOWA WHERE MODELS SHOW BEST DYNAMICS. MODERATE WINDS ALOFT SHOULD MAKE IN-LINE WIND DAMAGE THE MAJOR THREAT. FREEZING LEVELS ARE AROUND 15 K...SO LARGE HAIL WOULD ONLY BE LIMITED TO THE STRONGEST STORMS. AFTERWARDS...HIGH PRESSURE BUILDS IN WITH DRIER AND SLIGHTLY COOLER AIR. ONLY CHANGES MADE WERE SPEEDING UP TIMING OF THE FRONT WEDNESDAY BY ABOUT 4 HOURS. OTHERWISE...NO OTHER MAJOR CHANGES TO SHORT TERM AT THIS TIME. SJ 200 PM... IN THE EXTENDED PERIODS...NOT MUCH NEEDED ADJUSTMENT. MEDIUM AND EXTENDED RANGE MODELS CONTINUE TO CRANK OUT SOLUTIONS THAT SHOW AN AMPLIFYING RIDGE REMAINING IN CONTROL OF THE WESTERN CONUS. THIS WILL HELP STEER A NORTHWEST FLOW ACROSS THE FORECAST AREA THROUGH THE EARLY WEEKEND. THUS...PUSHING TEMPERATURES BACK DOWN TO AROUND OR JUST BELOW SEASONABLY NORMAL LEVELS THROUGH THE FIRST HALF OF THE WEEKEND. THE NORTHWEST FLOW DOES NOT LOOK POTENT ENOUGH AT THIS TIME TO BRING ANY STORMS INTO NORTHERN MISSOURI THIS WEEKEND OR NEXT WEEK. FOR THE LATER HALF OF THE WEEKEND THE RIDGE WILL EXPAND EAST AND PUSH TEMPERATURES BACK UP. CUTTER 1100 AM... WILL PLAN ON ISSUED A LATE MORNING UPDATE FOR SHOWER AND THUNDERSTORMS IN NORTHERN MO. THETAE POOLING INTO THE NW CORNER OF CW...AND COMBINED WITH LOW LEVEL JET EXPECT IT TO LAST THROUGH 21-22Z AS IT SHIFTS EAST. THEREFORE HAVE EXTENDED POPS IN NW CORNER OF MO THROUGH THE EARLY AFTERNOON. SJ .EAX... KS...NONE. MO...NONE.
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-091800- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 446 AM CDT WED JUL 9 2003 ...SEVERE THUNDERSTORMS LIKELY LATE THIS AFTERNOON THROUGH EARLY TONIGHT... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ARE EXPECTED MAINLY LATE THIS AFTERNOON THROUGH EARLY TONIGHT. SOME OF THE THUNDERSTORMS ARE EXPECTED TO BE SEVERE LATE THIS AFTERNOON THROUGH EARLY TONIGHT. A STRONG UPPER LEVEL SYSTEM MOVING SOUTHEAST TOWARD THE WESTERN GREAT LAKES WILL HELP DRIVE A COLD FRONT INTO NORTHWEST MISSOURI THIS AFTERNOON. THE ATMOSPHERE AHEAD OF THE FRONT WILL BE EXTREMELY UNSTABLE...AND WITH INCREASING WINDS IN THE UPPER ATMOSPHERE... SCATTERED SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP MAINLY SOUTHEAST OF A LINE FROM ST JOSEPH TO GRANT CITY LATE THIS AFTERNOON. THE PRIMARY THREAT WILL BE LARGE HAIL AND DAMAGING WINDS. HOWEVER...AN OUTFLOW BOUNDARY MOVING SOUTHEAST ACROSS EXTREME NORTHWEST MISSOURI EARLY THIS MORNING...MAY ALSO SERVE AS A FOCUS FOR SEVERE DEVELOPMENT LATE THIS AFTERNOON. SUFFICIENT SHEAR MAY BE PRESENT TO SUPPORT AN ISOLATED TORNADO...IN THE VICINITY OF THIS BOUNDARY...WITH THE RISK AREA GENERALLY NORTH OF A LINE FROM GRANT CITY TO TRENTON TO MACON. IN ADDITION...HEAT INDICES ARE EXPECTED TO REACH BETWEEN 100 AND 105 THIS AFTERNOON GENERALLY ALONG AND SOUTH OF A LINE FROM KANSAS CITY TO CARROLLTON TO MOBERLY. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION LIKELY WILL BE REQUIRED THIS AFTERNOON THROUGH EARLY TONIGHT. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC AND CLIMATE INFORMATION...IS AVAILABLE ON THE WEB AT HTTP://WWW.CRH.NOAA.GOV/EAX OR HTTP://WEATHER.GOV. DB
The national radar mosaic for the moment the first event began.
1 heat. Local standard time, as filed.
A 94 year old Jackson county female died due to heat related causes. High heat and humidity was observed from July 9th through July 11th.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Heat, Jackson | 2003-07-11 | 94 | Female | Other | Direct |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2003Every state in 2003This day in weather historyWarnings in Missouri, July 2003
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: 5376485.