Alert archive / Kentucky / Tornado Warnings in 2009

Tornado Warning 39, NWS Louisville, KY

July 31, 2009Green County, Hart County, Kentucky

NWS Louisville, KY issued this tornado warning at Jul 31, 2009, 12:41 AM CDT for Green County, Hart County, Kentucky. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 31, 2009, 12:41 AM CDT (05:41 UTC)
Expired
Jul 31, 2009, 1:15 AM CDT
In force
34 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon

Counties Green County, KY, Hart County, KY

The radar

The Louisville radar (KLVX), 76 km from the middle of the area, began a volume at 05:43 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

Nashville Metro, TN (KBNA), launched 00:00Z, 5.7 hours before the alert went out and 152 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 00:00Z on 2009-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1948 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2009-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 148 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
1948 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
148 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
1.5
Supercell composite
9.6

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KLMK 310541
TORLMK
KYC087-099-310615-
/O.NEW.KLMK.TO.W.0039.090731T0541Z-090731T0615Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
1241 AM CDT FRI JUL 31 2009

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN GREEN COUNTY IN SOUTH CENTRAL KENTUCKY...
  EASTERN HART COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 115 AM CDT...

* AT 1240 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR
  HARDYVILLE...MOVING NORTHEAST AT 25 MPH.

* THE TORNADO WILL BE NEAR...
  CANMER AND MONROE AROUND 1250 AM CDT...
  LINWOOD AROUND 100 AM CDT...
  SUMMERSVILLE AROUND 110 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES AT NIGHT CAN BE EXTREMELY DANGEROUS. DO NOT WAIT UNTIL YOU 
SEE OR HEAR THE TORNADO. IT MAY BE TOO LATE.

&&

LAT...LON 3741 8577 3735 8558 3717 8574 3721 8589
TIME...MOT...LOC 0541Z 214DEG 20KT 3721 8580

$$

AL
2 follow-up statements
000 
WWUS53 KLMK 310555
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1255 AM CDT FRI JUL 31 2009

KYC087-099-310615-
/O.CON.KLMK.TO.W.0039.000000T0000Z-090731T0615Z/
GREEN KY-HART KY-
1255 AM CDT FRI JUL 31 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 115 AM CDT FOR EASTERN
HART AND WESTERN GREEN COUNTIES...

AT 1255 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR CANMER...MOVING 
NORTHEAST AT 25 MPH.

THE TORNADO WILL BE NEAR...
  LINWOOD AROUND 100 AM CDT...
  SUMMERSVILLE AROUND 105 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY OBSCURE THIS TORNADO. TAKE COVER NOW IF YOU WAIT
TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.

&&

LAT...LON 3741 8577 3735 8558 3721 8571 3726 8580
TIME...MOT...LOC 0555Z 214DEG 23KT 3729 8572

$$

AL
000 
WWUS53 KLMK 310617
SVSLMK

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
117 AM CDT FRI JUL 31 2009

KYC087-099-310626-
/O.EXP.KLMK.TO.W.0039.000000T0000Z-090731T0615Z/
GREEN KY-HART KY-
117 AM CDT FRI JUL 31 2009

...THE TORNADO WARNING FOR EASTERN HART AND WESTERN GREEN COUNTIES
HAS EXPIRED...

THE STORM THAT PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF 
THE WARNED AREA AND IS NO LONGER SEVERE. HOWEVER THIS STRONG STORM 
REMAINS ACROSS NORTHERN GREEN COUNTY...AND COULD STILL BE CAPABLE OF 
PRODUCING HEAVY RAIN AND GUSTY WINDS.

IF YOU RECEIVED WIND DAMAGE...ESPECIALLY IN SOUTHEAST HART COUNTY 
NEAR HARDYVILLE...PLEASE REPORT THIS TO LOCAL LAW ENFORCEMENT.

LAT...LON 3741 8577 3735 8558 3721 8571 3726 8580
TIME...MOT...LOC 0555Z 214DEG 23KT 3729 8572

$$

AL

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 11:01 PM CDTFlash Flood WarningLMKAllen, Logan, Simpson3 hr
Jul 30, 11:17 PM CDTSevere Thunderstorm WarningLMKAllen28 min
Jul 30, 11:43 PM CDTSevere Thunderstorm WarningLMKAllen, Barren, Warren32 min
Jul 31, 1:23 PM CDTRiver Flood WarningLMKBourbon15 hr

Nearby

Tornado Warnings in Kentucky, 2009Every tornado warning in 2009Tornadoes in 2009

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.