A cold front passed east across the region between the 18th and 20th, bringing widespread showers and a few thunderstorms. Rain was often heavy during this period, and totals ranged between one and two inches.
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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 PAH wrote it up.
A cold front passed east across the region between the 18th and 20th, bringing widespread showers and a few thunderstorms. Rain was often heavy during this period, and totals ranged between one and two inches. This forced the St. Francis River above flood stage. The primary effect of the flooding was to delay spring planting of crops.
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 Paducah, KY wrote its last area forecast discussion before the first event at Apr 20, 6:01 PM CST, 1 hour 59 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 701 PM CDT MON APR 20 2009 .UPDATE... UPDATED AVIATION SECTION FOR 00Z TAFS. && .DISCUSSION... /ISSUED 133 PM CDT MON APR 20 2009/ DEEP UPPER LOW OVER THE GREAT LAKES REGION WILL GRADUALLY HEAD OFF TO THE EAST...WITH LINGERING POPS OVER THE EAST AND NORTHEAST THROUGH TUESDAY...FOLLOWED BY DRY WEATHER TUESDAY NIGHT THROUGH WEDNESDAY. THE MODELS...PRIMARILY THE GFS...PAINT SCANT QPF ACROSS PARTS OF THE REGION TUESDAY NIGHT INTO WEDNESDAY...BUT NUMERICAL POPS ARE COMING IN VERY LOW. FOR NOW WILL REFLECT IN SLIGHTLY HIGHER CLOUD PERCENTAGES. FOR WEDNESDAY NIGHT INTO THURSDAY...WE DID MAKE A CHANGE. WE ADDED SLIGHT CHANCE POPS FOR CONVECTION... SOUTHEAST MISSOURI WEDNESDAY NIGHT...AND AREA WIDE THURSDAY. THIS SIGNAL HAS PERSISTED IN THE MODELS FOR MORE THAN ONE RUN. MODELS SHIFT A WARM FRONT ACROSS THE REGION...COUPLED WITH MODEST MOISTURE...AND FAIRLY DECENT INSTABILITY. WILL KEEP POPS IN THE 15-20 PERCENT RANGE FOR NOW...SINCE THERE IS A HINT OF CONVECTIVE INHIBITION. WILL TRANSITION BACK TO DRY WEATHER FOR THURSDAY NIGHT. FOR THE PERIOD FRIDAY THROUGH MONDAY...BOTH THE OPERATIONAL MODELS AND ENSEMBLE MEANS FROM THE GEFS AND NAEFS SHOW A RIDGE OVER THE SOUTHEAST CONUS...WITH A STRONG SURFACE HIGH PRESSURE CENTER PERSISTING JUST OFF THE SOUTHEAST ATLANTIC COAST. ANY SCANT MOISTURE WRAPPING AROUND THE HIGH TO OUR EAST APPEARS AS IF IT WILL REMAIN EAST OF US. UPPER TROF WILL BE BLOCKED OUT WEST...WITH SYSTEMS MOVING NORTHEAST FROM THE TROF AND EJECTING EAST AND NORTHEAST INTO THE PLAINS AND UPPER MIDWEST...WELL TO OUR WEST AND NORTHWEST. WILL MAINTAIN OUR DRY FORECAST WITH TEMPERATURES RUNNING ABOVE NORMAL THROUGH THE PERIOD. && .AVIATION... STRONG LOW PRESSURE CENTERED NEAR CHICAGO EARLY THIS EVENING WILL SLOWLY WOBBLE EASTWARD OVER THE NEXT 24 HOURS. SCATTERED SHOWERS AND A FEW BRIEF THUNDERSTORMS WILL MOVE EASTWARD OUT OF WEST KENTUCKY BY 03Z. ALONG THE I-64 CORRIDOR AND EVANSVILLE TRI STATE AREA...THE SHOWERS WILL PERSIST THROUGH 06Z AND POSSIBLY THROUGH THE NIGHT. A FEW SHOWERS MAY ROTATE AROUND THE LOW AND INTO SOUTHWEST INDIANA AGAIN ON TUESDAY. STRONG WEST NORTHWEST WINDS WILL IMPACT THE ENTIRE REGION TUESDAY. && .PAH WATCHES/WARNINGS/ADVISORIES... KY...NONE. MO...NONE. IL...NONE. IN...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PADUCAH KY 140 PM CDT MON APR 20 2009 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-211000- JEFFERSON-WAYNE IL-EDWARDS-WABASH-PERRY IL-FRANKLIN-HAMILTON- WHITE-JACKSON-WILLIAMSON-SALINE-GALLATIN-UNION IL-JOHNSON-POPE- HARDIN-ALEXANDER-PULASKI-MASSAC-GIBSON-PIKE-POSEY-VANDERBURGH- WARRICK-SPENCER-FULTON-HICKMAN-CARLISLE-BALLARD-MCCRACKEN-GRAVES- LIVINGSTON-MARSHALL-CALLOWAY-CRITTENDEN-LYON-TRIGG-CALDWELL- UNION KY-WEBSTER-HOPKINS-CHRISTIAN-HENDERSON-DAVIESS-MCLEAN- MUHLENBERG-TODD-PERRY MO-BOLLINGER-CAPE GIRARDEAU-WAYNE MO-CARTER- RIPLEY-BUTLER-STODDARD-SCOTT-MISSISSIPPI-NEW MADRID- 140 PM CDT MON APR 20 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST MISSOURI. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON AND EARLY THIS EVENING. SMALL HAIL AND GUSTY WINDS MAY ACCOMPANY STRONGER CONVECTIVE ACTIVITY. MOVEMENT WILL BE SOUTHEAST AROUND 40 MPH. REFER TO THE LATEST FLOOD PRODUCTS FOR INFORMATION ON AREA RIVER FLOODING. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A SLIGHT CHANCE OF THUNDERSTORMS WEDNESDAY NIGHT ACROSS SOUTHEAST MISSOURI...AND AREA WIDE ON THURSDAY. REFER TO THE LATEST FLOOD PRODUCTS FOR INFORMATION ON AREA RIVER FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED.
The national radar mosaic for the moment the first event began.
1 flood. Local standard time, as filed.
Minor flooding of the St. Francis River occurred near Patterson. Low-lying fields and bottomlands were flooded near the river. At the Patterson gage, where flood stage is 16 feet, the river crested at 16.29 feet around 2:45 A.M. on the 21st.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Missouri in 2009Every state in 2009This day in weather historyWarnings in Missouri, April 2009
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: 160111.