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 St. Louis, MO wrote its last area forecast discussion before the first event at May 10, 2:50 PM CST, 19 hours 10 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 350 PM CDT FRI MAY 10 2002 FCST PROBS FOR THE AFTN PACKAGE REVOLVE ARND YET ANOTR SVR/HVY RAFL EVENT FOR THE WKND. MODELS IN GOOD AGRMT FOR THE MOST PART...THO NGM PLACEMENT OF SFC LOW FM LEE CYCLOGEN IS ITS TYPICAL TOO FAR N BIAS. AVN/ETA HAVE CONVERGED ON CONSENSUS SOLN IN THIS REGARD. SWLY UPR FLO TO PERSIST UNTIL MAIN S/W...NOW OVR NWRN US...MOVS THRU IL/MO SUN NGT. UNTIL THEN...PARADE OF TSTM EVENTS WL MOV NR AND THRU FA. ON SFC FEATURES...WRMFNT WL PUSH THRU FA SAT AFTN/EVNG AND THEN CDFNT TO MAKE HDWAY THRU FA SUN/SUN EVNG. AVN/ETA VERY SIMILAR SO WL USE THEM FOR MODEL GUIDANCE. FOR TNGT...CLUSTER OF TSTMS OVR NERN OK/SERN KS IN RGN OF STG H850 THTA-E ADVCTN/WAA. RGN OF LOW-MID LVL FORCING TO EXPAND TNGT...ESP AFT MDNGT...AND XPCT THIS CLUSTER TO DVLP MOST NR NOSE OF H850 JET OVR IN ERN KS. SO...WL PLACE HIGHEST POPS IN NRN/WRN PRTNS OF FA. GUIDANCE TEMPS LOOK OK...THO LEANED TWDS COOLER FAN A LTL. FOR SAT...ONGOING BAND OF CONVECTION FOR PRTNS OF FA N OF WRMFNT...ESP FOR N AND CNTRL. WRMFNT WL CONT TO TRACK THRU FA THIS PD...PLACING SRN 2/3RDS IN WRM SECTOR BY LATE AFTN. GIVEN VARIOUS FACTORS...IT APPEARS THAT MCS WL DVLP IN VCNTY OF NERN KS LATE TNGT...AND THEN TRACK ENEWD THRU NRN FA IN MRNG/ERL AFTN WHICH WL FURTHER AUGMENT HVY RAFL CHCS IN THE UIN AREA. SHD BE TGT TEMP GRAD N OF I-70...FAVORED WRMR MAV TEMPS OVERALL...THO WENT EVEN HIR IN SPOTS. FOR SAT NGT...WRMFNT CLRS FA DURG EVNG PLACING ENTIRE AREA IN WRM SECTOR...SETTING THINGS UP FOR MAIN PCPN EVENT. CDFNT UPSTREAM WL FIRE UP NEW CONVECTION AND THIS CONVECTION WL MAKE SPEEDY PROGRESS INTO OUR FA. FNT WL BE UPSTREAM ALL ZONES...AND WITH WDSPRD LOW-MID 60S DWPTS...SHD BE MILD NITE. WENT ABV WRMR FWC TEMPS. ON SUN...ONGOING CONVECTION WL CONT ACRS ALL OF FA...ENHANCED BY 110KT RGT ENTR RGN OF UPR LVL JET...UPSTREAM S/W...AND PRESENCE OF LLVL FNTL BDRY. VERY HI PWAT VALUES (1.5+) WL MAKE LATE SAT NGT/SUN MOST DANGEROUS PD FOR HVY RAFL...AND THUS FOR FLOODING GIVEN ALREADY SATURATED GRND AND VERY LOW FFG VALUES. FNT SHD MOV INTO SERN PRTNS OF FA LATE THIS PD (IF NOT FURTHER S...IF YOU WANT TO CONSIDER EFFECTIVE FNTL BDRY AND NOT TRUE FNT). HUGE GUIDANCE DISCREPANCY...THO OVERALL WENT WITH BLEND THIS PD. SUN NGT INTO THE EXTDD PD...MAIN S/W WL MOV THRU SUN NGT...AND AVN HINTS AT ANOTR WAVE THAT MAY CLIP PRTNS OF SERN MO/SRN IL. PRESENCE OF CDFNT NRBY WL MANDATE POPS ANYWAY. OTRW...ERL-MID NXT WK ACTUALLY LOOKS RATHER CALM...AND COOL...WITH THE NXT PCPN EVENT PERHAPS LATE WK AS A CANADIAN CDFNT SINKS SWD. FOR NOW WL HOLD OFF WITH ANY FFA...AS CURRENT HYDRO OUTLOOK HAS THINGS WELL IN HAND AND MAIN HVY RAFL THREAT NOT TIL 3RD PD XCPT FOR UIN AREA. THKS FOR COORD ILX AND EAX. .STL...NONE TES
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-111800- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 630 AM CDT SAT MAY 11 2002 THREATS THROUGH TONIGHT... THERE WILL BE A TWIN THREAT OF HAZARDOUS WEATHER OVER THE FORECAST AREA TODAY AND TONIGHT. FIRST THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY AND TONIGHT ALONG AND NORTH OF A LINE ALONG INTERSTATE 44 AND INTERSTATE 70 FROM ROLLA TO ST LOUIS TO VANDALIA ILLINOIS. DISCUSSION... THE AIR IS BECOMING RAPIDLY MORE UNSTABLE TODAY AS A DEEP STORM SYSTEM WINDS UP TO THE WEST OF THE AREA. THUNDERSTORMS WILL LIKELY DEVELOP THIS AFTERNOON FROM SOUTHWEST KANSAS THROUGH NORTHERN MISSOURI. THESE STORMS WILL PROBABLY EVOLVE RAPIDLY INTO A SQUALL LINE AND MOVE EAST THIS AFTERNOON AND TONIGHT ACROSS THE AREA. DAMAGING WIND AND LARGE HAIL ARE THE PRIMARY THREATS BUT ISOLATED TORNADOES ARE ALSO A POSSIBILITY. A SECONDARY AND VERY IMPORTANT THREAT IS FOR HEAVY RAINFALL AND POSSIBLE FLOODING. A FLOOD WATCH HAS BEEN ISSUED FOR THE ENTIRE ST LOUIS FORECAST AREA INCLUDING EASTERN MISSOURI AND WEST AND SOUTHWEST ILLINOIS...FOR VARIOUS TIME FRAMES. IN NORTHEAST MISSOURI...THE WATCH EXTENDS FROM TODAY THROUGH SUNDAY...WHILE CENTRAL AND EAST CENTRAL MISSOURI EXPECT THE HEAVIEST RAIN A LITTLE LATER SO THAT THE WATCH IS IN EFFECT FOR TONIGHT AND SUNDAY. THE GROUND IS TOTALLY SATURATED ACROSS THE AREA AND RIVERS AND STREAMS ARE BANKFULL OR OUT OF THEIR BANKS. RAINFALL TOTALS ACROSS THE AREA ARE FORECAST TO REACH 1 TO 3 INCHES OF RAIN OVER THE NEXT 24 TO 48 HOURS WITH LOCAL AMOUNTS POSSIBLY HIGHER. OUTLOOK FOR SATURDAY... THERE WILL BE A SLIGHT CHANCE FOR SEVERE THUNDERSTORM ACTIVITY ALONG AND SOUTH OF THE SAME INTERSTATE LINE FROM ROLLA TO ST LOUIS TO VANDALIA FOR SUNDAY. A FRONTAL SYSTEM IS FORECAST TO SETTLE A LITTLE FURTHER SOUTH BRINGING A RISK FOR SEVERE THUNDERSTORMS TO SOUTHEAST MISSOURI AND SOUTHERN ILLINOIS. SOME OF THESE STORMS WILL LIKELY TRAIL ONE ANOTHER LEAVING SOME AREAS WITH VERY HEAVY RAIN AMOUNTS. KEEP ABREAST OF LATEST FORECASTS AND POSSIBLE WARNINGS THROUGH THE WEEKEND. PEDIGO THIS PRODUCT WILL BE ISSUED BETWEEN 6 AND 8 AM DAILY...AND WILL BE UPDATED AS NEEDED. FOR DETAILED INFORMATION ON A PARTICULAR THREAT...MAKE SURE TO REFER TO THE ZONE FORECASTS AND THE ACTUAL WATCH...WARNING OR ADVISORY PRODUCT.
ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-111800- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 630 AM CDT SAT MAY 11 2002 THREATS THROUGH TONIGHT... THERE WILL BE A TWIN THREAT OF HAZARDOUS WEATHER OVER THE FORECAST AREA TODAY AND TONIGHT. FIRST THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS TODAY AND TONIGHT ALONG AND NORTH OF A LINE ALONG INTERSTATE 44 AND INTERSTATE 70 FROM ROLLA TO ST LOUIS TO VANDALIA ILLINOIS. DISCUSSION... THE AIR IS BECOMING RAPIDLY MORE UNSTABLE TODAY AS A DEEP STORM SYSTEM WINDS UP TO THE WEST OF THE AREA. THUNDERSTORMS WILL LIKELY DEVELOP THIS AFTERNOON FROM SOUTHWEST KANSAS THROUGH NORTHERN MISSOURI. THESE STORMS WILL PROBABLY EVOLVE RAPIDLY INTO A SQUALL LINE AND MOVE EAST THIS AFTERNOON AND TONIGHT ACROSS THE AREA. DAMAGING WIND AND LARGE HAIL ARE THE PRIMARY THREATS BUT ISOLATED TORNADOES ARE ALSO A POSSIBILITY. A SECONDARY AND VERY IMPORTANT THREAT IS FOR HEAVY RAINFALL AND POSSIBLE FLOODING. A FLOOD WATCH HAS BEEN ISSUED FOR THE ENTIRE ST LOUIS FORECAST AREA INCLUDING EASTERN MISSOURI AND WEST AND SOUTHWEST ILLINOIS...FOR VARIOUS TIME FRAMES. IN NORTHEAST MISSOURI...THE WATCH EXTENDS FROM TODAY THROUGH SUNDAY...WHILE CENTRAL AND EAST CENTRAL MISSOURI EXPECT THE HEAVIEST RAIN A LITTLE LATER SO THAT THE WATCH IS IN EFFECT FOR TONIGHT AND SUNDAY. THE GROUND IS TOTALLY SATURATED ACROSS THE AREA AND RIVERS AND STREAMS ARE BANKFULL OR OUT OF THEIR BANKS. RAINFALL TOTALS ACROSS THE AREA ARE FORECAST TO REACH 1 TO 3 INCHES OF RAIN OVER THE NEXT 24 TO 48 HOURS WITH LOCAL AMOUNTS POSSIBLY HIGHER. OUTLOOK FOR SATURDAY... THERE WILL BE A SLIGHT CHANCE FOR SEVERE THUNDERSTORM ACTIVITY ALONG AND SOUTH OF THE SAME INTERSTATE LINE FROM ROLLA TO ST LOUIS TO VANDALIA FOR SUNDAY. A FRONTAL SYSTEM IS FORECAST TO SETTLE A LITTLE FURTHER SOUTH BRINGING A RISK FOR SEVERE THUNDERSTORMS TO SOUTHEAST MISSOURI AND SOUTHERN ILLINOIS. SOME OF THESE STORMS WILL LIKELY TRAIL ONE ANOTHER LEAVING SOME AREAS WITH VERY HEAVY RAIN AMOUNTS. KEEP ABREAST OF LATEST FORECASTS AND POSSIBLE WARNINGS THROUGH THE WEEKEND. PEDIGO THIS PRODUCT WILL BE ISSUED BETWEEN 6 AND 8 AM DAILY...AND WILL BE UPDATED AS NEEDED. FOR DETAILED INFORMATION ON A PARTICULAR THREAT...MAKE SURE TO REFER TO THE ZONE FORECASTS AND THE ACTUAL WATCH...WARNING OR ADVISORY PRODUCT.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Heavy rain over the weekend of May 11-12 caused the North Fabius River to flood. The river went nearly 13 feet over flood stage at Monticello, MO. Many acres of farmland went under water and numerous roads were closed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2002Every state in 2002This day in weather historyWarnings in Missouri, May 2002
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: 5291390.