Alert archive / Kentucky / Tornado Watches in 2008

Tornado Watch 26

January 29, 20086 counties in Indiana; 15 counties in Kentucky

The Storm Prediction Center issued this tornado watch at Jan 29, 2008, 5:07 PM CST for 6 counties in Indiana; 15 counties in Kentucky. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
Jan 29, 2008, 5:07 PM CST (23:07 UTC)
Expired
Jan 29, 2008, 7:00 PM CST
In force
113 min
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
60 kt
All 21 counties

Gibson County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Caldwell County, KY, Calloway County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Henderson County, KY, Hopkins County, KY, Lyon County, KY, Marshall County, KY, McLean County, KY, Muhlenberg County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Webster County, KY

The radar

The Evansville,IN radar (KVWX), 61 km from the middle of the area, began a volume at 23:09 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
80%
One or more gusts of 65 knots or more
50%
Ten or more severe hail reports
5%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jan 29, 5:07 PM CSTSevere Thunderstorm WarningPAHGibson, Posey38 min
Jan 29, 5:11 PM CSTTornado WarningPAHGibson19 min
Jan 29, 5:14 PM CSTSevere Thunderstorm WarningPAHPosey, Vanderburgh, Warrick46 min
Jan 29, 5:14 PM CSTSevere Thunderstorm WarningPAHCaldwell, Crittenden, Hopkins, Livingston, Lyon, Marshall and 2 more46 min
Jan 29, 5:18 PM CSTSevere Thunderstorm WarningPAHCaldwell, Calloway, Lyon, Marshall, Trigg42 min
Jan 29, 5:24 PM CSTTornado WarningPAHVanderburgh, Warrick24 min
Jan 29, 5:30 PM CSTSevere Thunderstorm WarningPAHGibson, Pike, Warrick30 min
Jan 29, 5:40 PM CSTSevere Thunderstorm WarningPAHSpencer, Warrick50 min
Jan 29, 5:50 PM CSTSevere Thunderstorm WarningPAHChristian, Hopkins, McLean, Muhlenberg, Webster55 min
Jan 29, 5:56 PM CSTSevere Thunderstorm WarningPAHChristian, Todd, Trigg49 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 11.1 hours before the alert went out and 199 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, Nashville Metro, TN at 12:00Z on 2008-01-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Nashville Metro, TN at 12:00Z on 2008-01-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 366 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1331 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
366 m²/s²
0-3 km storm-relative helicity
395 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000
WWUS20 KWNS 292250
SEL6  
SPC WW 292250
INZ000-KYZ000-300100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 26
NWS STORM PREDICTION CENTER NORMAN OK
450 PM CST TUE JAN 29 2008

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       SOUTHERN INDIANA
       WESTERN KENTUCKY

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 450 PM UNTIL
700 PM CST.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 30 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHEAST OF
EVANSVILLE INDIANA TO 25 MILES WEST SOUTHWEST OF FORT CAMPBELL
KENTUCKY.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 24...WW 25...

DISCUSSION...EXTENSION OF TORNADO WATCH 24.  INCREASING STORMS WILL
CONTINUE EWD ACROSS WW IN FORM OF SMALL LINES/SUPERCELLS WITH
WIDESPREAD DAMAGING WINDS AND ISOLATED EXTREME WIND DAMAGE AND/OR
TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
350. MEAN STORM MOTION VECTOR 27035.


...EVANS

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 29, 10:21 AM CSTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more54 min
Jan 29, 10:54 AM CSTMesoscale DiscussionSPCAlexander66 min
Jan 29, 11:32 AM CSTTornado WatchSPCAlexander, Bond, Calhoun, Clinton, Edwards, Fayette and 27 more7 hr
Jan 29, 12:19 PM CSTMesoscale DiscussionSPCBoone, Carroll, Henderson, Henry, Jo Daviess, Lee and 8 more4 hr
Jan 29, 1:24 PM CSTMesoscale DiscussionSPCChampaign, Christian, Coles, DeWitt, Douglas, Edgar and 11 more66 min
Jan 29, 3:56 PM CSTMesoscale DiscussionSPCAlexander, Clay, Clinton, Crawford, Cumberland, Edwards and 24 more64 min
Jan 29, 4:40 PM CSTSevere Thunderstorm WatchSPCBartholomew, Boone, Brown, Clark, Clay, Clinton and 46 more3 hr
Jan 29, 5:38 PM CSTMesoscale DiscussionSPCAdams, Allen, DeKalb, Huntington, Kosciusko, LaGrange and 6 more97 min

Nearby

Tornado Watches in Kentucky, 2008Tornado Watches in Indiana, 2008Every tornado watch 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.