1 flash flood, 1 hail, 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 23, 8:47 PM CST, 3 hours 43 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 947 PM CDT MON AUG 23 2004 .DISCUSSION... QUICK UPDATE TO THE GOING FORECAST FOR THIS EVENING. THE THUNDERSTORM ACTIVITY TO OUR WEST HAS STRUGGLED TO MOVE EAST ALL EVENING DUE TO THE MORE STABLE AIR MASS FROM THIS MORNINGS AND AFTERNOONS CONVECTION. HOWEVER...WITH THE SHORTWAVE VORT MAX RIGHT ON TOP OF US...AND THE SUBTROPICAL JET PUSHING INTO EASTERN KANSAS AND OKLAHOMA...THE ACTIVITY HAS FINALLY BEGUN TO PUSH EAST. THEREFORE...I BUMPED POPS UP TO CATEGORICAL FOR THE SOUTHWEST QUARTER OF THE CWA. THE THREAT OF SEVERE THUNDERSTORM ACTIVITY IS ANTICIPATED TO CONTINUE THROUGH MIDNIGHT. CUTTER && .PREVIOUS DISCUSSION... 300 PM MON... CONVECTIVE POTENTIAL THE NEXT COUPLE OF DAYS IS THE MAIN CONCERN. SHORTWAVE TROUGH ACROSS EXTREME EASTERN KANSAS AND WRN MO CONTINUES TO TRIGGER BANDS OF CONVECTION ACROSS THE CWA. ISENTROPIC LIFT ABOVE OUTFLOW BOUNDARY IN SOUTHEAST KANSAS MAY ALSO BE RESPONSIBLE FOR THE CONVECTION TO THE SOUTHWEST OF THE KC METRO AREA. UNUSUAL PATTERN FOR LATE SUMMER WILL CONTINUE THE NEXT FEW DAYS WITH A SERIES OF SHORTWAVES TO EJECT NORTHEAST FROM THE WESTERN US TROUGH. FIRST CONCERN IS THE THREAT OF CONVECTION TONIGHT AS ISENTROPIC LIFT DEVELOPS THROUGHOUT PORTIONS OF THE CWA. THE MESOETA IS RATHER STRONG WITH THE ISENTROPIC LIFT ON THE 305-310K SURFACE TONIGHT...BUT SUSPICIOUS OF ITS SUCH STRONG THERMAL GRADIENT. PREFER WEAKER SOLUTION OF THE GFS/NGM. CWA ALSO LOCATED IN UPPER DIVERGENCE ZONE AS STG H2 JET MOVES ACROSS OKLAHOMA AND ARKANSAS. AS PER THE GFS...BEST ISENTROPIC LIFT TO OCCUR IN THE WESTERN ZONES AFTER MIDNIGHT ALTHOUGH WEAK ISENTROPIC LIFT WILL BE PRESENT ACROSS THE SRN AND WRN ZONES THIS EVENING. WILL KEEP PRECIPITATION IN THE CHANCE CATEGORY AS EXACT LOCATION OF BEST ISENTROPIC LIFT IS IN QUESTION...EXCEPT IN THE ERN ZONES NEAR CATEGORICAL THIS EVENING. ISENTROPIC LIFT TO DIMINISH IN THE EASTERN ZONES TUESDAY MORNING WITH A H7 CAP BUILDING INTO THE WRN ZONES DURING THE AFTERNOON. A WEAK SHORTWAVE MAY TRIGGER CONVECTION DURING THE LATE AFTERNOON HOURS ALONG A SURFACE TROUGH FROM CENTRAL NEBRASKA TO CENTRAL KANSAS. PREFER SURFACE DEPICTION OF THE GFS AS MESOETA MAY BE SUFFERING FROM CONVECTIVE FEEDBACK WITH ITS SURFACE BOUNDARY LOCATED FROM SE NEBRASKA TO SRN IOWA. CONVECTION MAY HAVE A TOUGH TIME DEVELOPING ALONG THE TROUGH IN CENTRAL KANSAS DUE TO THE CAP. HOWEVER...THUNDERSTORMS WILL LIKELY DEVELOP IN NEBRASKA AND MOVE INTO THE NORTHERN ZONES TUESDAY NIGHT. CONVECTION MAY LINGER IN THE NORTHEAST ZONES WEDNESDAY MORNING. A REPEAT PERFORMANCE MAY OCCUR WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT AS THE SURFACE TROUGH REMAINS RELATIVELY STATIONARY. HOWEVER...BELIEVE THE THREAT WILL MAINLY STAY NORTH OF THE BORDER. OTHERWISE...TEMPERATURES TRICKY AND DEPEND ON CONVECTION AND CONVECTIVE OUTFLOW. OVERALL...TEMPERATURES TO WARM THE NEXT COUPLE OF DAYS. DB IN THE EXTENDED PORTION OF THE FORECAST...THE GFS AND DGEX CONTINUE TO FORECAST THE PROGRESSION OF A TROUGH ACROSS THE ROCKIES AND CENTRAL PLAINS DURING THE LAST HALF OF THE WEEK. THE SURFACE REFLECTION OF THIS FEATURE IS FORECAST TO PASS ACROSS THE FORECAST AREA FRIDAY NIGHT INTO EARLY SATURDAY...AND HAVE PLACED THE HIGHEST CHANCE POPS (40) DURING THIS TIMEFRAME. SOUTH/SOUTHWEST FLOW AHEAD OF THIS SYSTEM WILL BRING ABOVE-NORMAL TEMPERATURES PRIOR TO THE FRONTAL PASSAGE ON SATURDAY...AFTER WHICH NEAR OR SLIGHTLY BELOW-NORMAL READINGS WILL PREVAIL OVER THE WEEKEND. SCHMIT 300 AM... VIGOROUS SHORTWAVE TROUGH LOCATED OVER NORTHERN ROCKIES IS EVIDENT IN EARLY MORNING WATER VAPOR IMAGERY...CARVING OUT LONGWAVE TROUGH ACROSS WESTERN CONUS. DOWNSTREAM FROM THIS FEATURE MID LEVEL RIDGE BUILDING EASTWARD ACROSS EASTERN DAKOTAS...ALLOWING SOUTHWESTERLY FLOW ALOFT TO SPREAD ACROSS CENTRAL PLAINS...WHILE FURTHER SOUTH 40-50KT SUBTROPICAL JET EXTENDS FROM DESERT SOUTHWEST INTO LOWER MS VALLEY REGION. A COUPLE OF FEATURES ARE EVIDENT IN FLOW ACROSS PLAINS REGION WHICH WILL AFFECT THE FORECAST AREA OVER THE NEXT 24 TO 48 HOURS. WEAK SHORTWAVE TROUGH EVIDENT IN WATER VAPOR AND PROFILER DATA CURRENTLY LOCATED OVER CENTRAL KANSAS...WHILE FURTHER UPSTREAM SECONDARY VORT MAX...INDUCED BY CONVECTION OVER CENTRAL HIGH PLAINS...HAS PROPAGATED INTO WESTERN KS. SATELLITE IMAGERY INDICATES ACCAS FIELD HAS DEVELOPED ACROSS EASTERN KS...HOWEVER ONLY ONE CELL HAS MANAGED TO INITIATE THUS FAR NEAR KCNU AREA. FURTHER WEST CONVECTION IS INCREASING ACROSS SOUTHWEST KS AHEAD OF SECONDARY VORT MAX. HAVE LEANED TOWARDS COMBINATION OF 00/06Z ETA MODEL FOR THIS PACKAGE...AS IT SEEMS TO BE HANDLING ONGOING PRECIPITATION OVER KS SOMEWHAT BETTER THAN GFS. ADDITIONALLY...GFS SEEMS TO BE PLAGUED BY CONVECTIVE FEEDBACK WITHIN THE MODEL...AND AS A RESULT IS OVERAMPLIFYING FEATURES ACROSS THE REGION. VORTICITY FEATURES OVER KS ARE PROGGED TO MERGE AND SLOWLY LIFT NORTHEAST ACROSS THE FORECAST AREA TODAY. AS THIS HAPPENS...ETA SUGGESTS PRECIPITATION TO BECOME WIDESPREAD ACROSS THE REGION. AFOREMENTIONED CONVECTION WHICH HAS DEVELOPED ACROSS SOUTHWEST KS IS LENDING MORE CONFIDENCE TO THE IDEA OF FAIRLY WIDESPREAD PRECIPITATION SPREADING ACROSS MUCH OF FORECAST AREA. WILL GO WITH HIGH POPS (70-80) ACROSS ALL BUT NORTHWEST (30-40 POPS THERE), WITH A HALF INCH TO AN INCH OF RAIN NOT OUT OF THE QUESTION GIVEN SLOW MOVEMENT OF WAVE AND PW VALUES ABOVE 1.5 INCHES. EXPECT BRUNT OF PRECIPITATION TO REACH WESTERN CWA BY MID MORNING...THEN INTO EASTERN ZONES BY MID TO LATE AFTERNOON. MODELS DEVELOP ADDITIONAL PRECIPITATION BEHIND THIS EJECTING WAVE LATE THIS AFTERNOON INTO THIS EVENING IN REGION OF 850MB THETA-E ADVECTION/ISENTROPIC LIFT ALONG 305K SURFACE. THIS SEEMS ODD CONSIDERING CLOSE PROXIMITY TO EJECTING TROUGH...HOWEVER THE AREA IS PROGGED TO BE IN CLOSE PROXIMITY OF LEFT EXIT REGION OF STRENGTHENING SUBTROPICAL JET. HAVE GONE AHEAD AND CARRIED PRECIPITATION CHANCES THROUGH THE EVENING HOURS ACROSS MUCH OF CWA...HOWEVER LEFT POPS IN CHANCE CATEGORY DUE TO AFOREMENTIONED CONCERNS. ETA CONTINUES ONSLAUGHT OF PRECIPITATION TUESDAY...DEVELOPING LARGE AREA OF UPPER LEVEL DIFFLUENCE ACROSS MUCH OF MO...BETWEEN SUBTROPICAL JET TO THE SOUTH AND STRENGTHENING JET ACROSS NORTHERN PLAINS ASSOCIATED WITH EJECTING TROUGH. GFS DOES NOT SUPPORT THIS AREA OF DIFFLUENCE...HOWEVER STRENGTH OF DEPARTING WAVE (LIKELY INFLUENCED BY CONVECTIVE FEEDBACK WITHIN THE MODEL) APPEARS TO BE OVERDONE...AND MAY BE CONTAMINATING THE ENVIRONMENT WITHIN THE MODEL. FOR NOW HAVE GONE AHEAD AND INCLUDED LOW CHANCE (30) POPS FOR TUESDAY. IN TERMS OF TEMPERATURES...HAVE LOWERED MAX TEMPS A CATEGORY OR SO ACROSS CWA THROUGH TUESDAY...GOING JUST A LITTLE ABOVE COOLER MET GUIDANCE. GIVEN PRESENCE OF LOW LEVEL MOISTURE AND CONSIDERABLE CLOUD COVER...EXPECT LOWS TO REMAIN IN THE UPPER 60S TO LOWER 70S. SEAMAN && .EAX WATCHES/WARNINGS/ADVISORIES... KS...NONE. MO...NONE. WFO EAX
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 630 PM CDT MON AUG 23 2004 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-241100- THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...TONIGHT SCATTERED THUNDERSTORMS HAVE DEVELOPED ALONG A THUNDERSTORM OUTFLOW BOUNDARY WHICH EXTENDS FROM TOPEKA SOUTHEAST TO NEAR LINN COUNTY KANSAS. SHEAR AND INSTABILITY PARAMETERS SUGGESTS THAT THESE STORMS MAY BECOME SEVERE THIS EVENING. THESE STORMS WILL LIKELY MOVE EAST INTO PORTIONS OF EXTREME NORTHEAST AND EAST CENTRAL KANSAS LATER THIS EVENING. CITIES INCLUDED IN THE RISK AREA INCLUDE... TROY...ATCHISON...PAOLA...BUTLER AND MOUND CITY KANSAS. ALTHOUGH THE PRIMARY THREAT IS LARGE HAIL AND DAMAGING WINDS...AN ISOLATED TORNADO IS POSSIBLE. THE RISK OF SEVERE THUNDERSTORMS WILL DIMINISH AFTER MIDNIGHT. HOWEVER...AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE AFTER MIDNIGHT...GENERALLY WEST OF A LINE FROM GRANT CITY TO CARROLLTON TO SEDALIA. LARGE HAIL IS THE PRIMARY THREAT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THUNDERSTORMS ARE POSSIBLE TUESDAY MORNING...GENERALLY EAST OF A LINE FROM GRANT CITY TO CARROLLTON TO SEDALIA. AN ISOLATED SEVERE THUNDERSTORM IS POSSIBLE WITH LARGE HAIL THE PRIMARY THREAT. THUNDERSTORMS ARE ALSO POSSIBLE ACROSS NORTHERN MISSOURI TUESDAY NIGHT...GENERALLY NORTH OF A LINE FROM ST JOSEPH TO CHILLICOTHE TO MACON. A FEW OF THESE THUNDERSTORMS MAY BE SEVERE. THUNDERSTORMS ARE POSSIBLE FRIDAY NIGHT AND EARLY SATURDAY AS A COLD FRONT AND UPPER LEVEL STORM MOVES THROUGH THE REGION. SEVERE THUNDERSTORMS ARE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS POSSIBLE THIS EVENING IN THE TROY...ATCHISON...PAOLA...MOUND CITY KANSAS AND BUTLER AREAS SPOTTER ACTIVATION IS POSSIBLE TUESDAY NIGHT ACROSS NORTHERN MISSOURI AND AREA WIDE FRIDAY NIGHT AND SATURDAY. && 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. DB
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1126 PM CDT MON AUG 23 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
1100 PM HEAVY RAIN 3 E GARDNER 38.81N 94.87W
08/23/2004 3.62 INCH JOHNSON KS OFFICIAL NWS OBS
BETWEEN 1000PM AND 1100PM, AT 199TH AND PADBURY AREA,
RECEIVED 3 TO 4 INCHES OF RAIN.
&&
KBSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 1236 AM CDT TUE AUG 24 2004 KSZ025-057-060-102-MOZ053-240635- ATCHISON KS-BATES MO-DONIPHAN KS-LINN KS-MIAMI KS- 1236 AM CDT TUE AUG 24 2004 TORNADO WATCH NUMBER 777 HAS BEEN CANCELLED AS OF 1236 AM CDT TUESDAY MORNING. COUNTIES NO LONGER UNDER THIS TORNADO WATCH INCLUDE... IN KANSAS: ATCHISON...DONIPHAN...LINN AND MIAMI. IN MISSOURI: BATES. THE THREAT FOR WIDESPREAD SEVERE WEATHER HAS DIMINISHED ACROSS THE AREA. CUTTER
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
101 AM CDT TUE AUG 24 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
1050 PM TSTM WND DMG SPRING HILL 38.75N 94.83W
08/23/2004 JOHNSON KS FIRE DEPT/RESCUE
FIRE TRUCK BLOWN OFF ROAD, SEMI TRAILERS OVERTURNED,
RADIO TOWER SNAPPED, POWER LINES DOWN
&&
KOCHThe national radar mosaic for the moment the first event began.
1 flash flood, 1 hail. Local standard time, as filed.
Water over road at Kenneth and 151st with intersection closed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Kansas in 2004Every state in 2004This day in weather historyWarnings in Kansas, 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: 5420300, 5420301.