Alert archive / Illinois / Flash Flood Warnings in 2008
Flash Flood Warning 1, NWS Paducah, KY
NWS Paducah, KY issued this flash flood warning at Feb 5, 2008, 8:42 AM CST for Gallatin County, Saline County, White County, Illinois; Henderson County, Union County, Kentucky. 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
- Feb 5, 2008, 8:42 AM CST (14:42 UTC)
- Expired
- Feb 5, 2008, 12:45 PM CST
- In force
- 4 hr
- Issued by
- NWS Paducah, KY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Gallatin County, IL, Saline County, IL, White County, IL, Henderson County, KY, Union County, KY
The radar
The Evansville,IN radar (KVWX), 59 km from the middle of the area, began a volume at 14:41 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
Nashville Metro, TN (KBNA), launched 12:00Z, 2.7 hours before the alert went out and 229 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
- 146 J/kg
- Mixed-layer CIN
- -124 J/kg
- Mixed-layer LCL
- 600 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 355 m²/s²
- 0-3 km storm-relative helicity
- 361 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 Feb 5, 3:19 AM CST, 5 hours 23 minutes earlier.
Area forecast discussion, Feb 5, 3:19 AM CST, 5 hours 23 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PADUCAH KY
319 AM CST TUE FEB 5 2008
.DISCUSSION...
SO MUCH TO TALK ABOUT...SO LITTLE TIME. MAIN CONCERN WITH THIS
PACKAGE WILL BE THE THREAT FOR FLOODING AND SEVERE WEATHER OVER THE
NEXT 24 HOURS OR SO.
AT 08Z A QUASI-STATIONARY FRONT EXTENDED SOUTHWESTWARD FROM NEAR
CHICAGO IL TO ST LOUIS MO TO SPRINGFIELD IL. RADAR/SAT PIX SHOWING A
LINE OF CONVECTION GENERALLY ALONG AND NORTH OF THE BOUNDARY. WITH
SOUTHWEST FLOW ALOFT...THE BOUNDARY AND ASSOCIATED CONVECTION IS
MAKING VERY SLOW PROGRESS TO THE SOUTH AND EAST.
CURRENT INDICATIONS ARE THAT IT WILL DRIFT INTO THE EXTREME NORTHERN
AND WESTERN SECTIONS OF OUR CWA THIS MORNING AND BECOME STATIONARY
AS A SURFACE LOW DEVELOPS OVER THE SOUTHERN PLAINS. IN THE MEANTIME
...DEEP MOISTURE WILL CONTINUE TO BE ADVECTED ACROSS THE AREA. THE
COMBINATION OF THE MOISTURE AND ITS INTERACTION WITH THE FRONT WILL
SET THE STAGE FOR TRAINING CONVECTION...ESPECIALLY ACROSS THE
AFOREMENTIONED AREA. HAVE ISSUED AN FFA THERE...IN EFFECT FROM 12Z
THIS MORNING UNTIL MIDNIGHT (06Z WEDNESDAY). AN FFA MAY HAVE TO BE
ISSUED FOR AREAS FURTHER SOUTH AND EAST...BUT WILL LET THE DAY SHIFT
DEAL WITH THAT. CURRENT THINKING IS THAT AS THE SURFACE LOW DEVELOPS
AND LIFTS NORTHEAST IT WILL PREVENT ANY SOUTHWARD MOVEMENT OF THE
FRONT THUS LIMITING THE BEST CHANCES FOR HEAVY PRECIP TO THE SAME
AREAS.
OF GREATER IMPORTANCE IS THE THREAT OF SEVERE WEATHER FROM LATE THIS
AFTERNOON THROUGH THE EARLY MORNING HOURS ON WEDNESDAY. STARTING
LATE THIS AFTERNOON THE AFOREMENTIONED DEEPENING SURFACE LOW AND
ATTENDANT COLD FRONT WILL CROSS OUR CWA. THIS COMBINED WITH
IMPRESSIVE WIND FIELDS INCLUDING BOTH DIRECTIONAL AND SPEED
SHEAR...ABOVE NORMAL TEMPERATURES/DEWPOINTS...MID LEVEL LAPSE RATES
OF >7 C/KM...CAPE OF >1000 J/KG..AND LIFTED INDICES OF -3 TO -4...A
SIGNIFICANT SEVERE WEATHER OUTBREAK IS A GOOD BET. THE EVOLUTION OF
THIS CONVECTIVE EVENT IS STILL A BIT UNCERTAIN...BUT DAMAGING WINDS
AND LARGE HAIL APPEAR TO BE THE GREATEST THREATS...BUT THERE IS A
DISTINCT POSSIBILITY OF TORNADIC STORMS CAPABLE OF PRODUCING LONG
TRACK TORNADOES. THIS IS A SERIOUS SEVERE WEATHER SITUATION AND
BEARS CLOSE MONITORING.
CONVECTION SHUTS DOWN OVERNIGHT FROM WEST TO EAST AS THE SYSTEM
MOVES QUICKLY OFF TO THE EAST. OVER ALL BUT OUR SOUTHEAST MISSOURI
COUNTIES THERE IS A DECENT CHANCE FOR LIGHT PRECIP ON WEDNESDAY IN
THE WRAP AROUND MOISTURE. AS COLDER AIR POURS IN...WENT WITH A
SPRINKLE/FLURRY MIX OVER ALL BUT THE EXTREME EASTERN SECTIONS WHERE
WE KEPT IT ALL LIQUID -RA/-DZ.
WEAK SYSTEM CROSSES THE REGION ON THURSDAY IN FAST FLOW BUT WITH
LACK OF MOISTURE AND DYNAMICS...JUST KEPT POPS (-RA) OVER THE FAR
NORTHERN AND WESTERN COUNTIES...BUT NOT THAT CONFIDENT IT WILL
HAPPEN.
MADE NO CHANGES BEYOND THURSDAY NIGHT. EXPECT TO BREAK RECORD HIGH
TEMPERATURES ALL OVER THE CWA TODAY.
.AVIATION...
GUSTY SOUTH WINDS AND THUNDERSTORMS WILL BE THE PRIMARY CONCERNS.
SURFACE COLD FRONT WILL SAG SOUTH...THEN BECOME STATIONARY JUST TO
THE NORTH OF THE TAF SITES. AS THE FRONT APPROACHES...SHOWERS AND
STORMS WILL INCREASE THIS MORNING. A LOW PRESSURE WAVE WILL MOVE
NORTHEAST ALONG THE FRONT THIS EVENING...BRINGING WIDESPREAD STRONG
TO SEVERE STORMS. DAMAGING WINDS ARE POSSIBLE WITH STORMS LATE THIS
AFTERNOON AND EVENING. MAIN CONCERN WITH STORMS THIS MORNING WILL BE
IFR/MVFR CONDITIONS IN HEAVY RAIN.
&&
PAH WATCHES/WARNINGS/ADVISORIES...
KY...NONE.
MO...FLOOD WATCH IN EFFECT FROM 6 AM CST UNTIL MIDNIGHT FOR
PERRY...CAPE GIRARDEAU...BOLLINGER...WAYNE...AND CARTER
COUNTIES.
IL...FLOOD WATCH IN EFFECT FROM 6 AM CST UNTIL MIDNIGHT FOR
JACKSON...PERRY...JEFFERSON...FRANKLIN...WAYNE...HAMILTON...
EDWARDS...AND WABASH COUNTIES.
IN...NONE.
PUBLIC...JP
AVIATION...MYHazardous weather outlook, Feb 5, 6:11 AM CST, 2 hours 31 minutes before
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Special weather statement, Feb 5, 5:33 AM CST, 3 hours 9 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE PADUCAH KY 533 AM CST TUE FEB 5 2008 ILZ076>078-083-087-091-INZ081-082-085>088-KYZ014-015-018-019-051230- DAVIESS KY-EDWARDS IL-GALLATIN IL-GIBSON IN-HARDIN IL-HENDERSON KY- PIKE IN-POSEY IN-SPENCER IN-UNION KY-VANDERBURGH IN-WABASH IL- WARRICK IN-WAYNE IL-WEBSTER KY-WHITE IL- 533 AM CST TUE FEB 5 2008 ...STRONG THUNDERSTORMS MOVING THROUGH THE EVANSVILLE TRI STATE AREA... AT 530 AM...STRONG THUNDERSTORMS EXTENDED FROM EVANSVILLE SOUTHWEST ALONG THE OHIO RIVER TO POPE COUNTY ILLINOIS. SOME OF THESE STORMS CONTAINED SMALL HAIL AND GUSTY WINDS. VERY HEAVY RAIN IN SOME OF THESE STORMS WAS LIKELY CAUSING MINOR FLOODING OF ROADS. THE STORMS WERE MOVING RAPIDLY EAST AT 40 MPH. THE STORMS WILL AFFECT HENDERSON AND OWENSBORO THROUGH 8 AM. BE PREPARED FOR TORRENTIAL RAIN...SMALL HAIL...AND GUSTY WINDS IN THE PATH OF THESE STORMS. MY
Local storm report, Feb 5, 6:16 AM CST, 2 hours 26 minutes before
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</html>The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 3:56 AM CST | Flash Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Jackson and 10 more | 20 hr |
| Feb 5, 11:47 AM CST | River Flood Warning | PAH | Wayne, White | 22 hr |
| Feb 5, 5:45 AM CST | Severe Thunderstorm Warning | PAH | Daviess, Henderson | 45 min |
| Feb 5, 5:17 PM CST | Severe Thunderstorm Warning | PAH | Calloway, Graves | 43 min |
| Feb 5, 5:47 PM CST | Severe Thunderstorm Warning | PAH | Calloway, Graves, Marshall | 43 min |
| Feb 5, 5:56 PM CST | Tornado Warning | PAH | Calloway, Graves | 49 min |
Nearby
Flash Flood Warnings in Illinois, 2008Flash Flood Warnings in Kentucky, 2008Every flash flood warning in 2008
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.