Alert archive / Illinois / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 1, NWS Paducah, KY

January 2, 2006Crittenden County, Livingston County, Kentucky; 5 counties in Illinois; Perry County, Missouri

NWS Paducah, KY issued this severe thunderstorm warning at Jan 2, 2006, 7:08 AM CST for Crittenden County, Livingston County, Kentucky; 5 counties in Illinois; Perry County, Missouri. 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
Jan 2, 2006, 7:08 AM CST (13:08 UTC)
Expired
Jan 2, 2006, 11:00 AM CST
In force
4 hr
Issued by
NWS Paducah, KY
Area
Counties, with a storm outline in the text

Counties Edwards County, IL, Jackson County, IL, Saline County, IL, Wayne County, IL, White County, IL, Crittenden County, KY, Livingston County, KY, Perry County, MO

The radar

The Paducah radar (KPAH), 87 km from the middle of the area, began a volume at 13:09 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 2, 5:38 AM CSTTornado WatchSPC6 hr
Jan 2, 2:15 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 1.1 hours before the alert went out and 257 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 12:00Z on 2006-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 775 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 12:00Z on 2006-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 253 square meters per square second.19395878Sfc1 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
775 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
841 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
253 m²/s²
0-3 km storm-relative helicity
239 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jan 2, 5:50 AM CST, 1 hour 18 minutes earlier.

Area forecast discussion, Jan 2, 5:50 AM CST, 1 hour 18 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
550 AM CST MON JAN 2 2006

.UPDATED...
UPDATED ZONES TO REFLECT LATEST TRENDS...AND TO INCLUDE THE
LATEST TORNADO WATCH NUMBER 4 WHICH IS VALID UNTIL NOON
TODAY. STILL VERY UNSTABLE ACROSS THE REGION EARLY THIS
MORNING. LINE OF SCATTERED THUNDERSTORMS EXTENDED FROM
ST. LOUIS TO JUST WEST OF GREENVILLE MISSOURI. FINE LINE
ON RADAR SEEN SOUTH INTO NE ARKANSAS. THIS CONVECTION WAS
RIGHT ALONG THE SURFACE COLD FRONTAL BOUNDARY...WHICH IS
FORECAST BY THE RUC TO BE THROUGH MOST OF THE FA BY 18Z.
AROUND 18Z...IT SHOULD EXTEND FROM SW INDIANA...SOUTH
ACROSS THE PENNYRILE REGION OF WRN KY. SOME ENHANCEMENT IN
THE CONVECTION IS POSSIBLE THIS MORNING AS BREAKS IN
THE CLOUDS ALLOW FOR SOME MORNING SUN...AND WARM
TEMPERATURES INTO THE MID 60S TO NEAR 70.

&&

.PREVIOUS DISCUSSION...
CURRENT ANALYSIS SHOWS LOW AND FRONT STILL WELL WEST OF THE AREA
OVER MO. ISODROSOTHERMS RANGE FROM LOW 60S SOUTH TO THE MID 50S
NORTH. INSTABILITY PARAMETERS REMAIN FAVORABLE FOR TS THROUGH THE
MORNING WITH LIS -7 OVER THE EAST EVEN AT 18Z. WIND PROFILES REMAIN
CONDUCIVE FOR SVR AND POSSIBLY TOR. IN ADDITION THE MODELS HAVE
CONTINUALLY INDICATED A SLOWER EVOLUTION WITH THE CURRENT SYSTEM.
WITH ALL THIS IN MIND AND THE UPPER LOW PROGGED TO MOVE OVERHEAD
WILL KEEP A CHC OF TS IN ALL DAY FOR INITIAL ISSUANCE OF ZONES. WILL
MONITOR TOR#2 AREA CLOSELY FOR DEVELOPMENT IF NOTHING IS HAPPENING
UPSTREAM AT PRESS TIME WILL CONSIDER DROPPING SOUTHERN WATCH BUT
MAINTAIN STRONG WORDING. OTHERWISE VERY FEW CHANGES TO GRIDS
ALTHOUGH OPTED TO REMOVE PRECIP WED AS PER COORD WITH LMK AND WILL
MONITOR SUCCESSIVE MODEL RUNS FOR POSSIBLE REMOVAL OF PRECIP WED NGT.

AS FOR TEMPS LEANED TOWARD THE MAV/MET SOLUTION MORE SO THAN THE
FWC. MAINLY AS RESULT OF GOOD RUN TO RUN CONTINUITY.

&&

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

KH/CN
Hazardous weather outlook, Jan 2, 5:54 AM CST, 1 hour 14 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PADUCAH KY
554 AM CST MON JAN 2 2006

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-031200-
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-
554 AM CST MON JAN 2 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 SLIGHT RISK OF SEVERE WEATHER THROUGHOUT THE REGION
TODAY. THE MAIN THREAT WILL BE FOR TORNADOES...LARGE HAIL...AND
DAMAGING WINDS. THERE IS A TORNADO WATCH IN EFFECT FOR THE ENTIRE
AREA THROUGH NOON TODAY.

LOW PRESSURE WITH AN ASSOCIATED COLD FRONT WILL TRAVERSE THE QUAD
STATE TODAY. MODERATE INSTABILITY AND A RELATIVELY LOW ALTITUDE FREEZING
LEVEL WILL COMBINE WITH STRONG WIND SHEAR AS THIS SYSTEM MOVES
THROUGH. THIS WILL RESULT IN AN ATMOSPHERE CONDUCIVE FOR SEVERE
STORMS CAPABLE OF PRODUCING DAMAGING WINDS...LARGE HAIL...AND
ISOLATED TORNADOES.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO SEVERE WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUESTED TODAY.

In the hours before

Special weather statement, Jan 2, 2:18 AM CST, 4 hours 50 minutes before
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Nearby

Severe Thunderstorm Warnings in Illinois, 2006Severe Thunderstorm Warnings in Kentucky, 2006Severe Thunderstorm Warnings in Missouri, 2006Every severe thunderstorm 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.