Alert archive / Kentucky / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 167, NWS Paducah, KY

June 18, 2007Union County, Kentucky

NWS Paducah, KY issued this severe thunderstorm warning at Jun 18, 2007, 4:29 PM CDT for Union County, Kentucky. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 18, 2007, 4:29 PM CDT (21:29 UTC)
Expired
Jun 18, 2007, 5:15 PM CDT
In force
46 min
Issued by
NWS Paducah, KY
Area
Counties, with a storm outline in the text

County Union County, KY

The radar

The Evansville,IN radar (KVWX), 70 km from the middle of the area, began a volume at 21:29 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, 9.5 hours before the alert went out and 283 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 2007-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 202 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 2007-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
202 J/kg
Mixed-layer CIN
-96 J/kg
Mixed-layer LCL
1421 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
40 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 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 Jun 18, 1:12 PM CDT, 3 hours 17 minutes earlier.

Area forecast discussion, Jun 18, 1:12 PM CDT, 3 hours 17 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
112 PM CDT MON JUN 18 2007

.DISCUSSION...
SATELLITE AND RADAR REVEAL HEAT OF DAY CONVECTION FIRING IN
SOUPING ATMOS...AIDED SLIGHTLY BY WEAK RIPPLES IN THE UPPER
FLOW...OUT AHEAD OF AN APPROACHING COLD FRONT. NAM SEEMS TO BE
PICKING UP ON THIS DECENTLY WELL. IT HAS SIMILAR TO GFS APPROACH
WITH FRONT TONIGHT...BRINGING IT TO NR OH RIVER BY 12Z TUE. BEST
UPPER ENERGY STAYS WELL NORTH AND EAST SO AS TO PRECLUDE
WIDESPREAD SVR RISK BUT STILL RESULTS IN SIGNIFICANTLY INCREASED
POPS TONIGHT/EARLY TUE. ALL MOS PAINTING HIGH LIKELY-LOW
CATEGORICAL EVENT AND WEVE FOLLOWED SUIT OR VERY NEAR.

FRONT GOES AHEAD AND DRAGS THRU REMAINDER OF FA TOMORROW...SO
CONTINUED HIGH POPS HIGHEST SE TOMORROW AM...TAPERING OFF TO NW
BEHID FRONT. BY 00Z WED...ALL MODELS SHOW FRONT IS THRU AND DRIER
AIR HAS SUNKEN INTO LOWER OH VALLEY...SO WEVE NIPPED OFF EARLY
EVENING MENTION THAT WAS INHERITED. THEN IT LOOKS LIKE A FAIRLY
NICE MID TO LATE WEEK UNDER INFLUENCE OF COOLER/DRIER HIGH.

LATE IN THE WEEK/INTO THE WEEKEND...WE START TO SOUP UP AGAIN AS
UPPER HEIGHTS RISE AND AIR MASS IS MODIFIED BY EWARD SHIFTING
HIGH. NEXT SYSTEM OF INTEREST TAGS EXTENDED OUTLOOKED SLGT RISK...SO
WEVE ADDED SMALL CHC POPS SATURDAY FOR ITS PASSAGE...THIS HAVING
BEEN SIGNALLED NOW AT LEAST A COUPLE OR THREE RUNS. AFTER THAT
MORE AND BETTER HOT/HUMID WITH BROAD HIGH PRESSURE/UPPER RIDGING
STRENGTHENING OVER CNTL U.S.

MAYBE A NEAR TERM LEAN TOWARD NAM MET MOS BUT BLENDED REASONABLY
W/GFS MAV MOS...ESP OVER MID TO LONGER RANGE.

&&

.AVIATION...
EXPECTING SCATTERED THUNDERSTORMS TO CONTINUE ACROSS THE REGION THIS
AFTERNOON INTO EARLY THIS EVENING.  WENT WITH VCTS FOR TAF SITES FOR
NOW BUT WILL AMEND IF COVERAGE BECOMES MORE WIDESPREAD.  THERE
SHOULD BE A LULL IN CONVECTIVE ACTIVITY DURING THE LATE
EVENING/EARLY OVERNIGHT HOURS...THEN SCATTERED TO NUMEROUS THUNDERSTORMS
WILL BE POSSIBLE LATE TONIGHT INTO TUESDAY AS A COLD FRONT MOVES
ACROSS THE REGION. CU/SC AND MID LEVEL CLOUDS WILL PERSIST TODAY
INTO TOMORROW...WITH SOUTH TO SOUTHWEST WINDS SHIFTING TO THE
NORTHWEST DURING THE MORNING HOURS TUESDAY.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
KY...NONE.
MO...NONE.
IL...NONE.
IN...NONE.
&&
Hazardous weather outlook, Jun 18, 4:25 AM CDT, 12 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PADUCAH KY
425 AM CDT MON JUN 18 2007

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-190930-
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-
425 AM CDT MON JUN 18 2007

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

.DAY ONE...TODAY AND TONIGHT

SCATTERED THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN AND
DANGEROUS LIGHTNING. A FEW OF THE STRONGEST STORMS MAY PRODUCE
STRONG GUSTY WINDS AND SMALL HAIL. MOST OF THE ACTIVITY WILL OCCUR
DURING THE AFTERNOON AND EVENING HOURS. ANY SEVERE WEATHER
ACTIVITY IS EXPECTED TO BE ISOLATED AT MOST.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE EXPECTED AGAIN ON TUESDAY ALONG AND AHEAD OF A
COLD FRONT. THE STORMS WILL END FROM NORTHWEST TO SOUTHEAST DURING THE
AFTERNOON AS THE FRONT CROSSES OUR REGION. THESE STORMS ARE NOT
EXPECTED TO BE SEVERE.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTER ACTIVATION IS NOT ANTICIPATED.

MY

In the hours before

Special weather statement, Jun 18, 4:00 PM CDT, 29 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 6:35 PM CDTSevere Thunderstorm WarningPAHRipley40 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2007Every severe thunderstorm warning in 2007

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.