Alert archive / Illinois / Flash Flood Warnings in 2006

Flash Flood Warning 40, NWS Paducah, KY

July 13, 2006Jackson County, Illinois

NWS Paducah, KY issued this flash flood warning at Jul 13, 2006, 12:44 AM CDT for Jackson County, Illinois. It was in force for 3 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
Jul 13, 2006, 12:44 AM CDT (05:44 UTC)
Expired
Jul 13, 2006, 3:30 AM CDT
In force
3 hr
Issued by
NWS Paducah, KY
Area
Counties, with a storm outline in the text

County Jackson County, IL

The radar

The Paducah radar (KPAH), 96 km from the middle of the area, began a volume at 05:45 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, 5.7 hours before the alert went out and 272 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.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 00:00Z on 2006-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1170 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2006-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1170 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
592 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jul 12, 3:30 PM CDT, 9 hours 14 minutes earlier.

Area forecast discussion, Jul 12, 3:30 PM CDT, 9 hours 14 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
330 PM CDT WED JUL 12 2006

.SHORT TERM DISCUSSION...
AREAS OF SCATTERED CONVECTION CONTINUED TODAY...AS MID LEVEL
SHORTWAVES CONTINUED TO MOVE FROM WEST TO EAST ACROSS THE PAH FCST
AREA AND TAPPED INTO AN UNSTABLE...WARM...AND VERY MOIST AIRMASS. NO
DISCERNIBLE SFC BOUNDARY WAS PRESENT IN OUR AREA. SOME FLOODING DUE
TO COPIOUS RAINFALL OCCURRED IN PARTS OF SWRN IND TODAY. THE
POTENTIAL FOR VERY HEAVY RAIN WILL CONTINUE FOR THE NEXT COUPLE OF
DAYS...HOWEVER THE POPS ARE EXPECTED TO DECREASE A BIT AFTER
TONIGHT. THIS WILL BE DUE TO THE MID LEVEL PATTERN OVERHEAD BECOMING
A LITTLE LESS ACTIVE AND THE NRN STREAM PATTERN BECOMING A BIT MORE
ZONAL. STILL...SOME MID LEVEL SHORTWAVE ENERGY ROUNDING THE EDGE OF
A RIDGE COULD BE A FACTOR EVEN INTO THE FIRST PART OF THE WEEKEND.
WE WILL CONTINUE THAT TREND FROM THE PREVIOUS PACKAGE. GUIDANCE IS
SHOWING AFTN DEWPOINTS WELL INTO THE MID 70S FOR MUCH OF THE WEEK.
ATTM...THE FCST WILL CONTINUE WITH MAINLY LOWER 70S DEWPOINTS INTO
THE WEEKEND. WE COULD EASILY SEE SOME HEAT INDICIES ABOVE 100 BY MON
AHEAD OF AN APPROACHING SFC BOUNDARY.

.LONG TERM DISCUSSION...
THE SUN THRU WED /DAY4 THRU 7/ TIME FRAME APPEARS TO BE MOSTLY DRY
AS ATMOSPHERIC MOISTURE WANES. THE MED RANGE MODELS INDICATE THAT
THE PAH FCST AREA WILL REMAIN ON THE PERIPHERY OF A HIGH PRESSURE
RIDGE SITUATED OVER THE WRN STATES. THIS WILL TEND TO LEAVE OUR AREA
OPEN FOR A SOMEWHAT COOLER/DRIER AIR MASS TO MOVE IN FROM THE NW
EARLY NEXT WEEK AS THE NRN STREAM PATTERN BECOMES MORE AMPLIFIED.
THE FCST IS BASED ON THE ASSUMPTION THAT A WEAK COLD FRONT WILL MAKE
IT INTO THE AREA AROUND TUE /DAY6/. AT THIS POINT...WE WERE NOT
WILLING TO ADD A PCPN CHANCE TO THE FCST ASSOCIATED WITH THE FRONT.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
KY...NONE.
MO...NONE.
IL...NONE.
IN...NONE.
&&

DB
Hazardous weather outlook, Jul 12, 4:31 AM CDT, 20 hours 13 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PADUCAH KY
431 AM CDT WED JUL 12 2006

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-130945-
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-
431 AM CDT WED JUL 12 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN
ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST
MISSOURI.

.DAY ONE...TODAY AND TONIGHT

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS AREA EXPECTED
OVER THE ENTIRE QUAD STATE REGION TODAY. HOWEVER...MOST OF THE
ACTIVITY IS EXPECTED TO REMAIN BELOW SEVERE LEVELS.

LOCALIZED FLOODING WILL BE A CONCERN TODAY WHERE THUNDERSTORMS
REPEAT OVER THE SAME LOCATION...AND IN AREAS THAT RECEIVED HEAVY
RAINFALL ON TUESDAY. THUNDERSTORMS TODAY WILL BE CAPABLE OF
PRODUCING RAINFALL RATES OF 2 TO 3 INCHES AN HOUR.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS CAN BE EXPECTED
ACROSS THE ENTIRE QUAD STATE REGION THROUGH THE UPCOMING WEEKEND.
THOUGH A FEW STORMS MAY REACH SEVERE LEVELS...ORGANIZED SEVERE
THUNDERSTORM ACTIVITY IS NOT ANTICIPATED AT THIS TIME.

FROM FRIDAY INTO THE WEEKEND...HIGH TEMPERATURES WILL REACH FROM
90 TO 95 DEGREES. COMBINED WITH THE HUMID CONDITIONS...AFTERNOON HEAT
INDICES OF AROUND 100 DEGREES ARE EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. HOWEVER...ANY
REPORTS OF VERY HEAVY RAIN OR FLOODING SHOULD BE FORWARDED
IMMEDIATELY TO THE NATIONAL WEATHER SERVICE.

In the hours before

Local storm report, Jul 12, 11:43 PM CDT, 1 hour 1 minute before
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The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 12, 9:45 PM CDTFlash Flood WarningPAHJackson3 hr
Jul 12, 10:15 PM CDTFlash Flood WarningPAHWilliamson4 hr
Jul 13, 4:24 PM CDTSevere Thunderstorm WarningPAHCape Girardeau51 min

Nearby

Flash Flood Warnings in Illinois, 2006Every flash flood warning in 2006

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.