1 flood, 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 Aug 4, 2:28 PM CST, 32 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 328 PM CDT WED AUG 4 2004 .DISCUSSION... SURFACE FRONT ALMOST THROUGH ENTIRE FORECAST AREA THIS AFTERNOON...MOVING SLOWLY IN THE SOUTHEAST CORNER. SHOULD BE THROUGH KDMO IN THE NEXT COUPLE OF HOURS. FROPA IS ASSOCIATED WITH A FEW SPRINKLES AND A LOW DECK OF STRATUS. BEHIND THE FRONT THE CLOUD DECK HAS SLOWLY RAISED...WITH SOME BREAKS IN NORTHERN MISSOURI. FORECAST TONIGHT IS CONCERNED CLOUDS AND TEMPS. IF UPSTREAM IS ANY INDICATION...SHOULD SEE BROKEN CLOUDS THROUGH MUCH OF THE EVENING. SHOULD SEE SOME CLEARING AFTER MIDNIGHT. AVE NOT INCLUDED ANY FOG IN THE GRIDS OR THE TAFS...BUT AS TEMPS DROP NEAR THE DEWPOINT /LOWER 60S/ IT IS POSSIBLE. MAY SEE CEILINGS BRIEFLY DROP TO 1000FT AND 3-5SM. HAVE PUT LOWS JUST A DEG OR TWO UNDER GUIDANCE. H8 TEMPS FOR THURSDAY DROP TO AROUND +13. SHOULD SEE SOME CU DEVELOP...SO HAVE KEPT HIGHS RIGHT AROUND 80 WHICH IS NEAR THE PREV FORECAST AND MET GUID. SURFACE HIGH PRESSURE IN CONTROL FOR THE REST OF THE WORK WEEK WITH A MINOR WARMING TREND TO ENSUE. GOING INTO THE WEEKEND...SEASONALLY NORMAL TEMPERATURES WILL TRY TO REASSERT THEMSELVES AS THE RIDGE OVER THE DESERT SOUTHWEST AMPLIFIES AND TRAVERSES EAST INTO THE PLAINS STATES. LATE IN THE WEEKEND AND EARLY NEXT WEEK A LOW OVER THE EAST COAST WILL LIFT THROUGH THE ST LAWRENCE RIVER VALLEY...WHILE AN EAST PACIFIC LOW BEATS DOWN THE MIDWEST RIDGE AND ALLOWS STILL MORE UNSEASONABLY COOL AIR TO FILTER SOUTH. THE MODELS ARE NOT IN COMPLETE AGREEMENT WITH HOW MUCH COOL AIR WILL WORK SOUTH. THE GFS IS SLOWER TO LIFT THE EAST COAST LOW THROUGH THE ST LAWRENCE VALLEY. THIS WOULD ALLOW THE SHORTWAVE...THAT IS FORECAST TO BEAT THE RIDGE DOWN...A CHANCE TO CARVE OUT A DEEP TROUGH ACROSS THE MIDWEST. THUS...PUSHING A DECENT COLD FRONT THROUGH MISSOURI SUNDAY/MONDAY. THE ECMWF AND UKMET ARE A LITTLE FASTER WITH LIFTING THE EAST COAST LOW...WHICH ULTIMATELY DOES NOT ALLOW AS MUCH TROUGHING ACROSS THE MIDWEST...AND THEREFORE INDICATES A MUCH WEAKER FRONTAL PASSAGE SUNDAY NIGHT. THE GFS LOOKS TO BE SUFFERING FROM SOME CONVECTIVE FEED BACK PROBLEMS WITH THE SHORTWAVE THAT IS PROGGED TO CARVE OUT NEXT WEEKS TROUGH...WHICH LEADS ONE TO THINK THAT THIS IS LEADING TO THE ANONYMOUSLY STRONG TROUGH SOLUTION. THEREFORE...I MADE MY ADJUSTMENTS TO THE GOING FORECAST BASED ON THE ECMWF SOLUTION. I PUSHED UP THE FRONTAL PASSAGE ENOUGH TO WARRANT STICKING THUNDERSTORMS INTO SUNDAY NIGHT...WHILE KEEPING THEM IN THE EAST CWA FOR MONDAY. OTHERWISE...I ONLY MADE MINOR MODIFICATIONS TO TEMPERATURES NEXT WEEK BY COOLING THINGS OFF A LITTLE...BUT KEPT TEMPS WARMER THAN THE MEX GUIDANCE. LVQ/CUTTER && .PREV DISCUSSION... 443 AM WED... RAIN WILL BE EXITING NORTHERN MISSOURI THIS MORNING AS THE LARGE CONVECTIVE COMPLEX THAT ORIGINATED IN SOUTHERN IOWA WEAKENS AND MOVES EAST. THE MOST SIGNIFICANT RAIN OCCURRED OVER NORTH CENTRAL AND NORTHEASTERN MISSOURI EARLY THIS MORNING. RADAR ESTIMATES FROM BETHANY TO MILAN TO MACON PAINT A STRIPE OF THREE TO FOUR INCHES, BUT GROUND TRUTH HAS BEEN ONLY ABOUT HALF THAT. THE COLD FRONT THAT TRIGGERED THE BIG STORMS IS NOW OVER EXTREME NORTHERN MISSOURI. HIGH PRESSURE BUILDING OVER THE UPPER MIDWEST WILL PUSH THIS FRONT SLOWLY SOUTHWARD TODAY, BUT I DONT THINK THAT THE COLD FRONT WILL BE A TRIGGER FOR THUNDERSTORMS TODAY. AN OUTFLOW BOUNDARY/PRE-FRONTAL TROUGH WILL LIKELY SET UP OVER SOUTHERN MISSOURI AHEAD OF THE FRONT THIS AFTERNOON. THUNDERSTORMS WILL LIKELY IGNITE ALONG THIS PRE-FRONTAL BOUNDARY IN THE AXIS OF HIGHEST INSTABILITY. TODAY WILL NOT BE NEARLY AS HOT AS IT HAS BEEN THE LAST COUPLE OF DAYS, BUT THE REGION WILL HAVE TO WAIT UNTIL TONIGHT TO ENJOY SIGNIFICANTLY LOWER DEWPOINTS. DEWPOINTS BEHIND THE COLD FRONT IN IOWA GRADUALLY DECREASE TO THE MIDDLE 60S NORTH OF INTERSTATE 80, AND THIS AIR WONT ARRIVE IN MISSOURI UNTIL LATE IN THE DAY. COOLER AND DRIER AIR WILL FILTER INTO MISSOURI AND EASTERN KANSAS TOMORROW AS HIGH PRESSURE SLIDES SOUTH OUT OF CANADA TOWARDS THE GREAT LAKES. TEMPERATURE FIELDS FROM THE GFS ARE A BIT TOO COOL, SO I PREFER THE WARMER 850MB TEMPERATURES FROM THE ETA AND NGM. EVEN USING THE WARMER MODELS, RECORD LOW TEMPERATURES ARE WITHIN REACH FRIDAY MORNING. CLEAR SKIES, LIGHT WINDS, AND UNUSUALLY COOL AND DRY AIR WILL ALLOW TEMPERATURES TO FALL QUICKLY THURSDAY NIGHT. KANSAS CITYS RECORD IS 55 DEGREES SET IN 1990. SAINT JOSEPHS RECORD OF 54 DEGREES WAS SET THE SAME YEAR. THE WARM UP HEADING TOWARDS THE WEEKEND LOOKS LIKE IT WILL BE GRADUAL. THE HIGHLY AMPLIFIED RIDGE TROUGH PATTERN OVER THE EASTERN TWO-THIRDS OF THE COUNTRY WILL TRAP COOL HIGH PRESSURE OVER THE MIDWEST THROUGH SATURDAY. AS THE SURFACE HIGH GRADUALLY RETREATS SATURDAY NIGHT AND SUNDAY, WELL HAVE TO WATCH FOR WARM ADVECTION SHOWERS AND THUNDERSTORMS IN THE NORTHWEST FLOW, ESPECIALLY OVER NORTHERN PORTIONS OF MISSOURI. THE LAST FEW RUNS OF THE GFS SUGGEST DECENT 850MB THETA-E ADVECTION OVER EASTERN NEBRASKA AND WESTERN IOWA. THIS COULD BE A POTENTIAL BREADING GROUND FOR THUNDERSTORMS CLUSTERS WHICH COULD DIVE SOUTHEAST. KOCH && .EAX WATCHES/WARNINGS/ADVISORIES... KS...NONE. MO...NONE. && WFOEAX
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1246 PM CDT WED AUG 4 2004 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-051100- THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THUNDERSTORMS ARE FORECAST FOR SUNDAY NIGHT AND MONDAY. AT THIS TIME...SEVERE THUNDERSTORMS LOOK POSSIBLE WITH THIS ACTIVITY...MAINLY SUNDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. && THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC AND CLIMATE INFORMATION...IS AVAILABLE ON THE WEB AT (LOWER CASE) HTTP://WWW.CRH.NOAA.GOV/EAX OR HTTP://WEATHER.GOV. LVQ
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
The Blackwater River near Blue Lick crested at 27.95 feet, or 3.95 feet above flood stage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2004Every state in 2004This day in weather historyWarnings in Missouri, August 2004
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: 5420805.