Alert archive / Illinois / Flash Flood Warnings in 2006

Flash Flood Warning 43, NWS Paducah, KY

July 21, 2006White County, Illinois

NWS Paducah, KY issued this flash flood warning at Jul 21, 2006, 2:40 PM CDT for White County, Illinois. It was in force for 2 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 21, 2006, 2:40 PM CDT (19:40 UTC)
Expired: Jul 21, 2006, 4:45 PM CDT
In force: 2 hr
Issued by: NWS Paducah, KY
Area: Counties, with a storm outline in the text

County White County, IL

The radar

The Evansville,IN radar (KVWX), 44 km from the middle of the area, began a volume at 19:41 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

Lincoln, IL (KILX), launched 12:00Z, 7.7 hours before the alert went out and 232 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 801 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 646 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

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 21, 2:18 PM CDT, 22 minutes earlier.

Area forecast discussion, Jul 21, 2:18 PM CDT, 22 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
218 PM CDT FRI JUL 21 2006

.DISCUSSION...

MAIN CONCERNS ARE CONVECTIVE POTENTIAL OVER THE FIRST 24 HOURS.

THE COLD FRONT IS CURRENTLY POSITIONED JUST NORTHWEST OF THE
CWA...WHILE MAIN MID-LEVEL TROUGH WAS LOCATED FURTHER NORTHWEST OVER
SOUTHEAST IOWA AND NORTHWEST MISSOURI.  ONGOING CONVECTION WILL RUN
ITS COURSE THIS AFTERNOON...WITH PRIMARY WIND DAMAGE THREAT ACROSS
THE EVANSVILLE TRI STATE AREA THIS AFTERNOON...WITH HEAVY RAIN MORE
OF A PROBLEM IN TRAILING BAND OF CONVECTION ACROSS THE SOUTHERN TIP
OF ILLINOIS.  LARGE OUTFLOW BOUNDARY FROM THIS CONVECTION WILL
LIKELY SCOUR OUT THE AIRMASS OVER ALL BUT FAR WESTERN COUNTIES IN
SOUTHEAST MISSOURI.

MODELS ARE OF LITTLE USE TODAY...SO WILL HAVE TO GO IT ALONE FOR
TONIGHT.  IN THE WAKE OF THIS AFTERNOONS CONVECTION THERE WILL BE A
WEDGE OF UNSTABLE SURFACE AIR LEFT OVER SOUTHEAST MISSOURI...AHEAD
OF THE COLD FRONT THAT IS EXPECTED TO CONTINUE SLOWLY SOUTHEAST.
SEEING NO SIGN OF NEW CONVECTION TO THE NORTHWEST OVER NORTHERN
MISSOURI...DO NOT THINK MUCH OF THE POTENTIAL FOR ANOTHER ROUND OF
CONVECTION DEVELOPING ON THE HEELS OF THE ONGOING STUFF.

WILL TRY TO FOCUS CONVECTIVE POTENTIAL OVER WESTERN ZONES
TONIGHT...WITH A MORE GENERAL PRECIPITATION THREAT OVER THE
REMAINDER OF THE AREA...SIMILAR TO WHAT IS GOING ON OVER NORTHERN
ILLINOIS RIGHT NOW.  MAY TWEAK POPS DOWN TO LIKELY FOR TONIGHT...BUT
WILL NOT MAKE ANY RADICAL CHANGES AT THIS TIME.  THERE WILL LIKELY
BE SEVERAL UPDATES THROUGH THE EVENING TO DEAL WITH THE WATCH AND
LATEST CONVECTIVE TRENDS.

THE PRIMARY AREA OF PRECIPITATION SHOULD BE OUT OF THE AREA BY 12Z
SATURDAY...BUT THERE WILL BE SOME POTENTIAL FOR AN ISOLATED SHOWER
OR THUNDERSTORM IN THE EASTERN HALF OF THE AREA...MAINLY EARLY
SATURDAY.  WILL LEAVE THE 20-30 POPS GOING FOR SATURDAY.

NO SIGNIFICANT CHANGES BEYOND SATURDAY.

&&

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

&&

DRS

Hazardous weather outlook, Jul 21, 11:25 AM CDT, 3 hours 15 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PADUCAH KY
1125 AM CDT FRI JUL 21 2006

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-221630-
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-
1125 AM CDT FRI JUL 21 2006

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS ACROSS THE ENTIRE
AREA TODAY. DAMAGING WINDS AND LARGE HAIL ARE THE MAIN
THREATS...WITH SIGNIFICANT WIND DAMAGE POSSIBLE DUE TO THE LARGE
AMOUNT OF INSTABILITY AND WIND SHEAR IN THE ATMOSPHERE.

SCATTERED SHOWERS AND THUNDERSTORMS WILL BEGIN MOVING INTO THE
AREA EARLY THIS AFTERNOON ACROSS PORTIONS OF SOUTHEAST
MISSOURI...SOUTHERN ILLINOIS AND SOUTHWEST INDIANA. THE THREAT FOR
THUNDERSTORMS WILL MOVE SOUTH ACROSS THE REST OF THE AREA LATER
THIS AFTERNOON AND THIS EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE IS A LINGERING CHANCE OF THUNDERSTORMS SATURDAY...
HOWEVER...NO WIDESPREAD SEVERE WEATHER IS ANTICIPATED AT THIS
TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVIATION WILL LIKELY BE NEEDED THIS AFTERNOON AND
TONIGHT.

In the hours before

Local storm report, Jul 21, 1:18 PM CDT, 1 hour 22 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
118 PM CDT FRI JUL 21 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0108 PM     TSTM WND DMG     MURPHYSBORO             37.77N 89.34W
07/21/2006                   JACKSON            IL   EMERGENCY MNGR

            POWER LINES DOWN

&&

JG

Local storm report, Jul 21, 1:42 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
142 PM CDT FRI JUL 21 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     TSTM WND DMG     DAISY                   37.52N 89.79W
07/21/2006                   CAPE GIRARDEAU     MO   DEPT OF HIGHWAYS

            3 INCH DIAMETER TREES DOWN

&&

JG

Local storm report, Jul 21, 1:44 PM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE
144 PM CDT FRI JUL 21 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     TSTM WND DMG     DAISY                   37.52N 89.79W
07/21/2006                   CAPE GIRARDEAU     MO   DEPT OF HIGHWAYS

            3 FOOT DIAMETER TREES DOWN

&&

JG

Local storm report, Jul 21, 1:51 PM CDT, 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
151 PM CDT FRI JUL 21 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0110 PM     TSTM WND DMG     MOUNT VERNON            38.32N 88.91W
07/21/2006                   JEFFERSON          IL   TRAINED SPOTTER

            SEMI-TRUCK BLOWN OVER ON I-57...TREES DOWN...MODULAR
            HOMES BLOWN ACROSS INTERSTATE

0130 PM     TSTM WND DMG     ELDORADO                37.81N 88.44W
07/21/2006                   SALINE             IL   LAW ENFORCEMENT

            TREES DOWN BETWEEN EL DORADO AND CARRIER MILLS AND
            RALIEGH

&&

JG

Local storm report, Jul 21, 2:39 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
239 PM CDT FRI JUL 21 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     TSTM WND DMG     3 S HENDERSON           37.80N 87.58W
07/21/2006                   HENDERSON          KY   LAW ENFORCEMENT

            POWERLINES DOWN NEAR CHANDLER SCHOOL ROAD AND HWY 60

&&

JG

Local storm report, Jul 21, 2:40 PM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE
240 PM CDT FRI JUL 21 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0213 PM     TSTM WND GST     UNIONTOWN               37.77N 87.93W
07/21/2006  E60 MPH          UNION              KY   TRAINED SPOTTER

            TREE LIMBS DOWN

&&

JG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 1:37 PM CDT	Severe Thunderstorm Warning	PAH	Union	38 min
Jul 21, 2:04 PM CDT	Severe Thunderstorm Warning	PAH	Henderson	56 min
Jul 21, 2:08 PM CDT	Severe Thunderstorm Warning	PAH	Webster	52 min
Jul 21, 2:31 PM CDT	Severe Thunderstorm Warning	PAH	Daviess, McLean	59 min
Jul 21, 2:39 PM CDT	Severe Thunderstorm Warning	PAH	Hopkins	51 min
Jul 21, 2:55 PM CDT	Severe Thunderstorm Warning	PAH	Livingston, Marshall	50 min
Jul 21, 2:59 PM CDT	Severe Thunderstorm Warning	PAH	Henderson	31 min
Jul 21, 3:15 PM CDT	Flash Flood Warning	PAH	Daviess, Henderson	3 hr
Jul 21, 3:27 PM CDT	Severe Thunderstorm Warning	PAH	Daviess	33 min
Jul 21, 12:08 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson, Perry	67 min
Jul 21, 12:22 PM CDT	Tornado Warning	PAH	Jefferson	38 min
Jul 21, 12:37 PM CDT	Severe Thunderstorm Warning	PAH	Franklin	53 min
Jul 21, 12:47 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, Wayne	58 min
Jul 21, 12:53 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	67 min
Jul 21, 1:14 PM CDT	Severe Thunderstorm Warning	PAH	Edwards, Saline, Union, Wabash, White, Williamson	76 min
Jul 21, 1:29 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin	61 min
Jul 21, 1:33 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Hardin, Johnson, Massac, Pope, Pulaski	72 min
Jul 21, 12:24 PM CDT	Severe Thunderstorm Warning	PAH	Perry	51 min
Jul 21, 12:49 PM CDT	Tornado Warning	PAH	Perry	26 min
Jul 21, 12:55 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger	65 min
Jul 21, 1:07 PM CDT	Severe Thunderstorm Warning	PAH	Cape Girardeau	53 min
Jul 21, 1:25 PM CDT	Severe Thunderstorm Warning	PAH	Perry	30 min
Jul 21, 5:43 PM CDT	Flash Flood Warning	PAH	Butler	2 hr
Jul 21, 5:55 PM CDT	Severe Thunderstorm Warning	PAH	Ripley	50 min
Jul 21, 5:57 PM CDT	Severe Thunderstorm Warning	PAH	Stoddard	63 min
Jul 21, 6:03 PM CDT	Severe Thunderstorm Warning	PAH	Butler	57 min

Nearby

Flash Flood Warnings in Illinois, 2006 Every 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.