Scattered thunderstorms persisted through the early morning hours along an axis of increasing moisture and confluence associated with a west-southwesterly low level jet. The activity was located on the southern fringe of a moderately strong east-west mid-level jet.
Every event with a place to put it. 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 episode as NWS PAH wrote it up.
Scattered thunderstorms persisted through the early morning hours along an axis of increasing moisture and confluence associated with a west-southwesterly low level jet. The activity was located on the southern fringe of a moderately strong east-west mid-level jet. There was an isolated occurrence of wind damage in Perry County.
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 May 8, 12:15 AM CST, 30 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 115 AM CDT FRI MAY 8 2009 .UPDATE... WILL BE UPDATING PRODUCTS TO EXPAND SEVERE WATCH 262 EASTWARD THROUGH REMAINING COUNTIES IN WEST KENTUCKY. THE WCN HAS ALREADY BEEN SENT. MAIN CONCERN WAS TO KEEP THE WATCH AHEAD OF THE ELEVATED SUPERCELL MOVING INTO THE SHAWNEE FOREST OF SOUTHERN ILLINOIS. WILL BE INCREASING POPS FOR THE REMAINDER OF THE NIGHT...AS MORE WIDESPREAD CONVECTION ENTERS THE FORECAST AREA. && .PREV DISCUSSION... /ISSUED 246 PM CDT THU MAY 7 2009/ DISCUSSION / TONIGHT THROUGH SUNDAY... LATEST SURFACE ANALYSIS SHOWS WEAK SURFACE BOUNDARY STALLED OVER THE FA. THE BOUNDARY WAS MAINLY EVIDENT VIA PRESSURE GRADIENT AND STREAMLINE WINDS. VIS SAT LOOP DEPICTS AREA OF CLOUDS ASSOCIATED WITH A WEAK VORT MAX ABOUT TO EXIT TO THE EAST OF THE AREA. THIS WAS ALSO SUPPORTED WELL WITH THE REGIONAL RADAR LOOP. SLIGHT PLACEMENT AND QPF DISCREPANCIES AMONG THE 12Z THU MODEL RUNS AND THE 00Z THU ECMWF RUN INCLUDED. OPTED TO GO WITH A HYBRID QPF BETWEEN THE 12Z GFS...00Z THU ECMWF...HPCQPF...AND COLLABORATION. AT THIS POINT AM EXPECTING AN MCS TO DEVELOP OVER SW MO OVERNIGHT AND MAKE ITS WAY INTO PAH FA AROUND SUNRISE AND RESULT IN ONE TO TWO INCHES OVER MOST OF THE FA FRIDAY. WITH SOME LINGERING QPF INTO THE EVENING HOURS. CURRENTLY CONSIDERING A FLASH FLOOD WATCH. WILL WAIT FOR THE 12Z ECMWF AND POSSIBLY THE 18Z MODEL RUNS WHICH WILL BE MORE FOR THE EVENING SHIFT. HOWEVER WILL MONITOR AND MAKE CALL CLOSER TO PRESS TIME. AS FOR TEMPS AND WINDS NOT MANY CHANGES JUST MINOR TWEAKS FOR MAINLY COLLABORATION PURPOSES. DISCUSSION / SUNDAY NIGHT THROUGH THURSDAY... NOT MUCH REST FOR THE WEARY IN THE EXTENDED PERIODS. RW/TRW MAY LINGER INTO SUNDAY NIGHT AS RIPPLES OF UPPER LEVEL ENERGY TAP INTO DECENT POST FRONTAL MOISTURE. HIGH PRESSURE OVERSPREADING THE REGION SHOULD KEEP THE REGION DRY MONDAY AND MONDAY NIGHT. ON TUESDAY AFTERNOON MODELS PUSH PRECIP CHANCES INTO OUR FAR WESTERN COUNTIES AS THE NEXT STORM SYSTEM BEGINS TO MOVE OUT OF THE CENTRAL PLAINS. TUESDAY NIGHT PRECIP (SCHC/CHC POPS) WILL BE POSSIBLE ACROSS ALL OF THE CWA...BUT WITH THE FRINGES OF AN UPPER LEVEL RIDGE PUSHING NORTHWARD INTO THE REGION...THE BETTER CHANCES SHOULD BE ACROSS THE NORTHERN HALF OF THE CWA. ON WEDNESDAY THE UPPER RIDGE GET SUPPRESSED SOMEWHAT AS THE SYSTEM APPROACHES...WHICH SHOULD ALLOW FOR SLIGHTLY BETTER CHANCES FOR PRECIP. FLOW ALOFT REMAINS NEARLY PARALLEL TO THE FRONT SO THIS SYSTEM WILL ALSO BE VERY SLOW MOVING. PRECIP CHANCES INCREASE WEDNESDAY NIGHT INTO THURSDAY AS THE SYSTEM SLOWLY DRAGS ACROSS THE REGION. AVIATION... IFR CIGS AND VSBY WERE LIFTING AT KEVV AND KOWB. EXPECT VFR CIGS AND VSBY TO PERSIST WITH THE EXCEPTION OF POSSIBLE TSRA NEAR KEVV AND KOWB THIS AFTN. BRING IN LOW DECK OVNGT BUT KEEP IT MAINLY VFR AGAIN WITH THE EXCEPTION OF TSRA/SHRA AFTER MIDNIGHT. BROUGHT IN PREDOMINANT TSRA AFTER 12Z ALL SITES. && .AVIATION... NUMEROUS THUNDERSTORMS MOVING SOUTHEASTWARD FROM SOUTHERN ILLINOIS INTO SOUTHWESTERN INDIANA WILL BEGIN TO AFFECT NORTHWESTERN KENTUCKY AND KOWB/KEVV OVER THE NEXT COUPLE OF HOURS. ADDITIONAL STORMS OVER CENTRAL MISSOURI MOVING SE WILL IMPACT KCGI/KPAH MAINLY AFTER 4 TO 5AM. IFR VIS AND MVFR CIGS LIKELY FOR ABOUT AN HOUR PERIOD WITH THE HEAVIEST STORMS. APPEARS TO BE A LULL BETWEEN 12Z AND 18Z WITH JUST SHRA/TSRA IN THE VICINITY BEFORE ADDITIONAL STORMS MOVE IN FROM THE WEST AHEAD OF THE FRONT WHICH WILL MOVE THROUGH BETWEEN 22Z AND 04Z FRIDAY EVENING FROM NORTH TO SOUTH. WINDS WILL SHIFT FROM THE SOUTH-SOUTHWEST TO THE WEST IN ITS WAKE...MAINLY UNDER 10KTS OUTSIDE OF STORMS. && .PAH WATCHES/WARNINGS/ADVISORIES... KY...NONE. MO...NONE. IL...NONE. IN...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PADUCAH KY 323 PM CDT THU MAY 7 2009 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-082030- 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- 323 PM CDT THU MAY 7 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST MISSOURI. .DAY ONE...THIS AFTERNOON AND TONIGHT SCATTERED THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND INTO THE EARLY EVENING HOURS. LATE TONIGHT A COMPLEX OF THUNDERSTORMS IS EXPECTED TO PUSH EASTWARD INTO PARTS OF SOUTHEAST MISSOURI...WITH THE POTENTIAL FOR DAMAGING WIND GUSTS AND LOCALLY HEAVY RAINFALL. MANY AREA RIVERS WILL CONTINUE TO EXPERIENCE MINOR TO MODERATE FLOODING. PLEASE REFER TO THE LATEST FLOOD WARNINGS AND STATEMENTS FOR DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY ON FRIDAY A COMPLEX OF THUNDERSTORMS IS EXPECTED TO PUSH EASTWARD ACROSS MUCH OF THE AREA...WITH THE POTENTIAL FOR DAMAGING WIND GUSTS AND WIDESPREAD HEAVY RAINFALL. WITH THE EXCEPTION OF SATURDAY NIGHT...MONDAY...AND MONDAY NIGHT...THUNDERSTORMS ARE POSSIBLE EACH DAY AS TWO SLOW MOVING FRONTAL SYSTEMS AFFECT THE REGION. MANY AREA RIVERS WILL CONTINUE TO EXPERIENCE MINOR TO MODERATE FLOODING. PLEASE REFER TO THE LATEST FLOOD WARNINGS AND STATEMENTS FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED LATE TONIGHT INTO FRIDAY. JP
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
1235 AM CDT FRI MAY 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1233 AM HAIL HERRIN 37.80N 89.03W
05/08/2009 E1.75 INCH WILLIAMSON IL TRAINED SPOTTER
&&
WIELGOSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
1243 AM CDT FRI MAY 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1239 AM HAIL 3 W MARION 37.73N 89.00W
05/08/2009 E1.00 INCH WILLIAMSON IL EMERGENCY MNGR
&&
WIELGOSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
1244 AM CDT FRI MAY 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 AM HAIL CARTERVILLE 37.76N 89.08W
05/08/2009 E1.75 INCH WILLIAMSON IL LAW ENFORCEMENT
SEVERAL REPORTS OF GOLF BALL SIZED HAIL ACROSS WESTERN
HALF OF COUNTY FROM HURST TO CARTERVILLE.
&&
ADPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
1248 AM CDT FRI MAY 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1246 AM HAIL 3 W MARION 37.73N 89.00W
05/08/2009 M2.00 INCH WILLIAMSON IL EMERGENCY MNGR
MEASURED 2 INCH HAIL 1.5 MILES SOUTH OF OLD HWY 13 ON
ROUTE 148 3 MILES WEST OF MARION.
&&
WIELGOSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
101 AM CDT FRI MAY 08 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1246 AM TSTM WND DMG MURPHYSBORO 37.77N 89.34W
05/08/2009 JACKSON IL EMERGENCY MNGR
POWER LINES DOWN IN MURPHYSBORO.
&&
WIELGOSSPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PADUCAH KY 114 AM CDT FRI MAY 8 2009 ILZ084-080715- JACKSON- INCLUDING THE CITIES OF...CARBONDALE AND MURPHYSBORO 114 AM CDT FRI MAY 8 2009 ...SIGNIFICANT WEATHER ADVISORY... AT 113 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM WITH UP TO NICKEL SIZE HAIL. THIS STORM WAS LOCATED 4 MILES NORTH OF GORHAM...OR 5 MILES WEST OF MURPHYSBORO... MOVING SOUTHEAST AT 35 MPH. MURPHYSBORO AND CARBONDALE ARE IN THE PATH OF THIS STORM. HAIL IS EXPECTED...SO MOVE INDOORS TO A PLACE OF SAFETY. STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
The St Louis radar (KLSX), 118 km away, was scanning. The volume nearest the first event began at 06:46 UTC.
1 thunderstorm wind. Local standard time, as filed.
Power lines were down on County Road 928.
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, May 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: 165928.