Alert archive / Illinois / Flash Flood Warnings in 2009
Flash Flood Warning 62, NWS Paducah, KY
NWS Paducah, KY issued this flash flood warning at Sep 20, 2009, 10:02 PM CDT for Edwards County, Wabash County, Illinois. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 20, 2009, 10:02 PM CDT (03:02 UTC)
- Expired
- Sep 21, 2009, 2:00 AM CDT
- In force
- 4 hr
- Issued by
- NWS Paducah, KY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Edwards County, IL, Wabash County, IL
The radar
The Evansville,IN radar (KVWX), 27 km from the middle of the area, began a volume at 03:01 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 3.0 hours before the alert went out and 199 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 488 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
What forecasters said that day
The local office's own words before this flash flood warning went out, 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 this flash flood warning went out at Sep 20, 2:31 PM CDT, 7 hours 31 minutes earlier.
Area forecast discussion, Sep 20, 2:31 PM CDT, 7 hours 31 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 231 PM CDT SUN SEP 20 2009 .DISCUSSION... NICE FETCH OF TROPICAL MOISTURE AMPLY TAPPED AS SEEN ON 88D/MOSAIC...HIGHEST POPS/BEST COVERAGE EAST OF MS RIVER. BNA 12Z SOUNDING SHOWS PWS NEAR 2 INCHES. NAM MODELS ONGOING CONVECTION WELL...AND KEEPS ERN 1/3 FA WET THIS EVENING...BEFORE TAPERING OFF POPS WEST TO EAST OVERNIGHT. COINCIDING W/THIS TAPERING OFF WILL BE FORMATION OF AREAS OF FOG FROM WEST TO EAST...SO HAVE INCLUDED THIS TRENDING AS WELL. GIVEN DEPTH OF MOISTURE WILL HIT HWO AND SHORT FUSE PRODUCTS HARD ON HEAVY RAIN/POTENTIAL WATER ISSUES BUT GIVEN TIME SPREAD OF WHAT WILL BECOME GENERALLY LIGHT-MODERATE RAIN DO NOT ANTICIPATE WATCH NEEDED ATTM...NOT TO SAY MINOR FLOODING WONT OCCUR. RELATIVE LULL LATE TONIGHT-EARLY MONDAY LOOKS TO PULSE AGAIN MON NIGHT-TUESDAY AS SURFACE LOW EJECTS ACROSS AR/MO WITHIN DEEP/WET SSWLYS. THIS PULSEY TREND MORE OR LESS CONTINUES THRU MID WEEK WITH ON/OFF AGAIN POPS KEEPING A WET FORECAST...BUT NOT NECESSARILY A CONTINUALLY WET PERIOD. THE BIGGEST FORECAST CHALLENGE IS MID WEEK ON...WHERE THE GFS/DGEX SUGGEST A BUILDING SERN U.S. RIDGE WILL SHUNT THE UPPER LOW WELL TO THE WEST AND EFFECTIVELY END OUR POPS. MEANWHILE THE HPC AND COLLABORATIVELY PREFERRED GEFS/ECMWF SLOWLY TRANSLATE THE LOW/UPPER TROF AND EVENTUALLY AN ATTENDANT COLD FRONT ACROSS THE AREA BY NEXT WEEKEND...FINALLY ENDING POPS BY DAY 7-8. HOWEVER IT TOO BUILDS AN UPPER RIDGE INTO/ACROSS THE AREA...ONLY IT POWER DRIVES THE LOW ACROSS IT DURING THE WEEK. AT THIS POINT IN THE GAME WILL HAVE TO STICK W/CONSENSUS AND FORECAST CONTINUITY...MAINTAINING A POP MENTION BUT MUTING IT FROM ECMWF BULLSEYE POPS. NEW MOS IS CLOSE TO GOING TEMPS/FORECAST TEMPS AND SO ONLY MINOR TWEEKS NEEDED THIS PACKAGE. .AVIATION... AS A SFC AREA OF LOW PRESSURE MOVES NWD THROUGH THE REGION...SHWRS AND TSTMS AND MVFR CIGS WILL REMAIN MOST LIKELY EAST OF THE MS RIVER INTO THE EARLY EVE. AFTER THAT...PCPN COVERAGE SHOULD DECREASE. OVNGT...WITH PLENTY OF LOW LEVEL MOISTURE IN PLACE...VSBYS ARE EXPECTED TO DECREASE TO IFR IN SPOTS. IN ADDITION...IFR CIGS ARE MOST LIKELY IN THE EAST OVNGT. CONDITIONS SHOULD IMPROVE TEMPORARILY BY MIDDAY MON. && .PAH WATCHES/WARNINGS/ADVISORIES... KY...NONE. MO...NONE. IL...NONE. IN...NONE. &&
Hazardous weather outlook, Sep 20, 5:19 AM CDT, 16 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PADUCAH KY 519 AM CDT SUN SEP 20 2009 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-211030- 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- 519 AM CDT SUN SEP 20 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST MISSOURI. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS CROSS THE REGION TODAY AND TONIGHT AS LOW PRESSURE MOVES UP THE MISSISSIPPI RIVER VALLEY. LOCALLY HEAVY RAINFALL WILL BE POSSIBLE WITH SOME OF THESE STORMS. IN ADDITION...A FEW STORMS MAY APPROACH SEVERE LEVELS AS A WARM FRONT LIFTS NORTH ACROSS THE REGION. AN ISOLATED TORNADO CANNOT BE RULED OUT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY A RISK OF THUNDERSTORMS WILL ALSO CARRY INTO NEXT WEEK. AT THIS TIME...SEVERE STORMS ARE NOT ANTICIPATED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED...THOUGH SPOTTERS SHOULD RELAY ANY HEAVY RAINFALL OR FLOODING REPORTS TO THE NATIONAL WEATHER SERVICE.
In the hours before
Local storm report, Sep 20, 4:56 PM CDT, 5 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
456 PM CDT SUN SEP 20 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0450 PM FLASH FLOOD SANTA CLAUS 38.12N 86.93W
09/20/2009 SPENCER IN LAW ENFORCEMENT
STATE ROAD 245 WAS UNDER WATER AND CLOSED.
&&
KELLYHLocal storm report, Sep 20, 5:01 PM CDT, 5 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
501 PM CDT SUN SEP 20 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0440 PM FLASH FLOOD ROCKPORT 37.88N 87.05W
09/20/2009 SPENCER IN PUBLIC
3.8 INCES OF RAIN FALL. RAIN STILL IN PROGRESS
&&
KELLYHLocal storm report, Sep 20, 5:03 PM CDT, 4 hours 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
503 PM CDT SUN SEP 20 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0450 PM FLASH FLOOD CHRISNEY 38.01N 87.03W
09/20/2009 SPENCER IN LAW ENFORCEMENT
STATE ROAD 231 HAD ONE LANE FLOODED.
&&
KELLYHLocal storm report, Sep 20, 6:11 PM CDT, 3 hours 51 minutes before
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Flash Flood Warnings in Illinois, 2009Every flash flood warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.