Alert archive / Kentucky / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 256, NWS Louisville, KY

July 6, 2004Trimble County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 6, 2004, 5:34 PM EDT for Trimble County, Kentucky. It was in force for 36 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 6, 2004, 5:34 PM EDT (21:34 UTC)
Expired: Jul 6, 2004, 6:10 PM EDT
In force: 36 min
Issued by: NWS Louisville, KY
Area: Counties, with a storm outline in the text

County Trimble County, KY

The radar

The Louisville radar (KLVX), 90 km from the middle of the area, began a volume at 21:37 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 was reported inside it

Time	Report	Where	Remark
Jul 6, 5:50 PM EDT	TSTM WND DMG	Bedford, KY	NUMEROUS LARGE TREE LIMBS WERE BLOWN DOWN.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 16 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 6, 2:50 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 9.6 hours before the alert went out and 161 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: 54 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 41 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 
WUUS53 KLMK 062134
SVRLMK
KYC223-062210-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
533 PM EDT TUE JUL 6 2004

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TRIMBLE COUNTY IN NORTH CENTRAL KENTUCKY

* UNTIL 610 PM EDT

* AT 529 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  BEDFORD...OR ABOUT 30 MILES NORTHEAST OF LOUISVILLE...AND MOVING
  NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BEDFORD BY 540 PM EDT

LAT...LON 3872 8545 3859 8543 3850 8533 3858 8520
      3874 8534

$$

DK

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 Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 6, 1:25 PM EDT, 4 hours 9 minutes earlier.

Area forecast discussion, Jul 6, 1:25 PM EDT, 4 hours 9 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOUISVILLE KY
125 PM EDT TUE JUL 6 2004

.SHORT RANGE (DAYS 0-3)...
SCT TSRA DEVELOPING QUICKLY IN VERY UNSTABLE AIRMASS OVER MID MS
RIVER VLY ATTM MVG NEWD TOWARD LMK FA. ADDITIONAL SCT ACTIVITY
POSSIBLE OVER PARTS OF FA IN ASSOC WITH OUTFLOW BDY THAT SETTLED
INTO CEN KY, BUT 700MB RIDGE AXIS IN VICINITY SEEMS TO BE
SUPPRESSING CELLS FOR TIME BEING. OVERALL CONVECTION HAS POTL TO
ORGANIZE INTO LINEAR SYSTEM, WITH MODEST VERTICAL SPEED SHEAR
OBSERVED ON KLVX VWP. SVR POTL SHOULD INCR INTO AFTERNOON AND EARLY
EVENING HOURS, PER SPC DAY ONE MDT RISK OVER NEARLY 1/2 OF THE FA,
WITH WIND DMG AND HAIL THE PRIMARY THREATS. CLUSTERS OF TSRA LOOK TO
CONTINUE INTO OVERNIGHT HOURS, MORE IN ASSOC WITH APPROACHING SFC
COLD FRONT. THIS FEATURE DROPS INTO SRN/ERN KY WED AFTERNOON,
FOCUSING BEST PCPN CHCS THERE, WITH DRYING TREND IN STORE FOR
THU/FRI AS UPPER TROPOSPHERIC RIDGING BUILDS IN. XXV

.LONG RANGE (DAYS 4-7)...
EXTENDED MODELS CONTINUE TO BE IN GOOD AGREEMENT TODAY WITH
TRANSLATING THE UPPER LEVEL FLOW PATTERN FROM AN AMPLIFIED SOLUTION
TO A ZONAL SOLUTION OVER MUCH OF NORTH AMERICA.  AT THE
SURFACE...HIGH PRESSURE WILL HOLD SWAY ACROSS MUCH OF THE
MID-ATLANTIC AND NORTHEAST U.S. INCLUDING THE OHIO VALLEY.  WITH
RIDGING ALOFT AND AT THE SFC...MOSTLY SUNNY DAYS AND MOSTLY CLEAR
NIGHTS ARE EXPECTED FOR SATURDAY AND SUNDAY.  MAIN FORECAST PROBLEM
WILL BE TIMING OF WEAK PERTURBATIONS IN THE FAST H5 FLOW.  THE 00Z
GFS BRINGS THE FIRST OF TWO WEAK WAVES INTO THE REGION ON MONDAY
FOLLOWED BY ANOTHER ON TUESDAY.  WITH SUCH GOOD CONSISTENCY IN THE
RUNS...WE PLAN ON MAKING LITTLE CHANGE TO THE EXTENDED FCST FOR
NOW.  WILL KEEP A CHC OF AFTERNOON/EVE SHOWERS AND THUNDERSTORMS IN
FOR MONDAY AND TUESDAY.  TEMPERATURES DO NOT APPEAR TO BE MUCH OF A
PROBLEM AS THE OPERATIONAL NUMBERS ARE IN GOOD AGREEMENT WITH THE
ENSEMBLE MEMBERS.  -JARVIS

&&

.LMK WATCHES/WARNINGS/ADVISORIES...
IN...NONE.
KY...NONE.

&&

Hazardous weather outlook, Jul 6, 12:45 PM EDT, 4 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
1245 PM EDT TUE JUL 6 2004

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-070800-
ADAIR KY-ALLEN KY-ANDERSON KY-BARREN KY-BOURBON KY-BOYLE KY-
BRECKINRIDGE KY-BULLITT KY-BUTLER KY-CASEY KY-CLARK IN-CLARK KY-
CLINTON KY-CRAWFORD IN-CUMBERLAND KY-DUBOIS IN-EDMONSON KY-
FAYETTE KY-FLOYD IN-FRANKLIN KY-GARRARD KY-GRAYSON KY-GREEN KY-
HANCOCK KY-HARDIN KY-HARRISON IN-HARRISON KY-HART KY-HENRY KY-
JEFFERSON IN-JEFFERSON KY-JESSAMINE KY-LARUE KY-LINCOLN KY-LOGAN KY-
MADISON KY-MARION KY-MEADE KY-MERCER KY-METCALFE KY-MONROE KY-
NELSON KY-NICHOLAS KY-OHIO KY-OLDHAM KY-ORANGE IN-PERRY IN-
RUSSELL KY-SCOTT IN-SCOTT KY-SHELBY KY-SIMPSON KY-SPENCER KY-
TAYLOR KY-TRIMBLE KY-WARREN KY-WASHINGTON IN-WASHINGTON KY-
WOODFORD KY-
INCLUDING THE CITIES OF...BARDSTOWN...BOWLING GREEN...
CAMPBELLSVILLE...COLUMBIA...CORYDON...CYNTHIANA...DANVILLE...
ELIZABETHTOWN...FRANKFORT...FRANKLIN...GLASGOW...HARDINSBURG...
HARRODSBURG...JASPER...LEITCHFIELD...LEXINGTON...LOUISVILLE...
NEW ALBANY...RICHMOND...RUSSELLVILLE...SHELBYVILLE...STANFORD...
VERSAILLES...WINCHESTER
1245 PM EDT (1145 AM CDT) TUE JUL 6 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL INDIANA AND
CENTRAL KENTUCKY.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER PARTS OF THE
OUTLOOK AREA THIS AFTERNOON. A MORE ORGANIZED AREA OF THUNDERSTORMS,
ASSOCIATED WITH A COLD FRONT, IS FORECAST TO MOVE ACROSS THE AREA
SOMETIME TONIGHT. THE STORM PREDICTION CENTER HAS INDICATED A
MODERATE RISK OF SEVERE STORMS THIS AFTERNOON AND TONIGHT, MAINLY
FOR NORTH CENTRAL KENTUCKY AND SOUTHERN INDIANA. A SLIGHT RISK
EXISTS ELSEWHERE. THE PRIMARY THREATS WOULD BE FROM VERY HIGH WIND
GUSTS AND LARGE HAIL, ALONG WITH FREQUENT CLOUD TO GROUND LIGHTNING
AND BRIEF PERIODS OF HEAVY RAIN.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP ONCE
AGAIN DURING THE DAY WEDNESDAY...AS A FRONTAL BOUNDARY PASSES
THROUGH THE FORECAST AREA. SCATTERED THUNDERSTORMS WILL ALSO BE
POSSIBLE SUNDAY AFTERNOON AND EVENING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND TONIGHT.

XXV

In the hours before

Local storm report, Jul 6, 4:50 PM EDT, 44 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
450 PM EDT TUE JUL 06 2004

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

0434 PM     TSTM WND DMG     CORYDON                  38.24N 86.12W
07/06/2004                   HARRISON            IN   LAW ENFORCEMENT

            TREES DOWNED

&&

LD

Local storm report, Jul 6, 5:11 PM EDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
511 PM EDT TUE JUL 06 2004

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

0500 PM     TSTM WND DMG     NEW ALBANY               38.27N 85.85W
07/06/2004                   FLOYD               IN   LAW ENFORCEMENT

            POWER LINES DOWNED

&&

LD

Local storm report, Jul 6, 5:25 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
525 PM EDT TUE JUL 06 2004

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

0520 PM     TSTM WND DMG     CAMPBELLSVILLE           38.27N 85.85W
07/06/2004                   TAYLOR              KY   LAW ENFORCEMENT

            POWER LINES 3W CAMPBELLSVILLE AND .88 HAIL

&&

LD

Local storm report, Jul 6, 5:25 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE LOUISVILLE KY
525 PM EDT TUE JUL 06 2004

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

0520 PM     TSTM WND DMG     CAMPBELLSVILLE           37.35N 85.33W
07/06/2004                   TAYLOR              KY   LAW ENFORCEMENT

            POWER LINES 3W CAMPBELLSVILLE AND .88 HAIL

&&

LD

Local storm report, Jul 6, 5:27 PM EDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
527 PM EDT TUE JUL 06 2004

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

0515 PM     HAIL             LOUISVILLE               38.22N 85.74W
07/06/2004                   JEFFERSON           KY   LAW ENFORCEMENT

            1.00 HAIL

&&

LD

Local storm report, Jul 6, 5:31 PM EDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
531 PM EDT TUE JUL 06 2004

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

0530 PM     HAIL             ST MATTHEWS              38.22N 85.74W
07/06/2004                   JEFFERSON           KY   TRAINED SPOTTER

            1.00 HAIL FALLING AT MALL ST MATTHEWS.

&&

MRC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 3:25 PM EDT	Severe Thunderstorm Warning	LMK	Hancock	35 min
Jul 6, 3:43 PM EDT	Severe Thunderstorm Warning	LMK	Ohio	62 min
Jul 6, 4:40 PM EDT	Severe Thunderstorm Warning	LMK	Butler	20 min
Jul 6, 4:52 PM EDT	Severe Thunderstorm Warning	LMK	Grayson	38 min
Jul 6, 4:56 PM EDT	Severe Thunderstorm Warning	LMK	Jefferson	39 min
Jul 6, 5:20 PM EDT	Severe Thunderstorm Warning	LMK	Logan	25 min
Jul 6, 5:21 PM EDT	Severe Thunderstorm Warning	LMK	Oldham	34 min
Jul 6, 5:28 PM EDT	Severe Thunderstorm Warning	LMK	Taylor	17 min
Jul 6, 5:35 PM EDT	Severe Thunderstorm Warning	LMK	Hardin	40 min
Jul 6, 5:41 PM EDT	Severe Thunderstorm Warning	LMK	Henry, Shelby	39 min
Jul 6, 5:43 PM EDT	Severe Thunderstorm Warning	LMK	Washington	47 min
Jul 6, 5:47 PM EDT	Severe Thunderstorm Warning	LMK	Simpson	28 min
Jul 6, 5:49 PM EDT	Severe Thunderstorm Warning	LMK	Larue	26 min
Jul 6, 5:59 PM EDT	Severe Thunderstorm Warning	LMK	Hart	31 min
Jul 6, 6:05 PM EDT	Severe Thunderstorm Warning	LMK	Allen	40 min
Jul 6, 6:06 PM EDT	Severe Thunderstorm Warning	LMK	Cumberland	39 min
Jul 6, 6:13 PM EDT	Severe Thunderstorm Warning	LMK	Marion	47 min
Jul 6, 6:21 PM EDT	Severe Thunderstorm Warning	LMK	Franklin, Shelby	29 min
Jul 6, 6:23 PM EDT	Severe Thunderstorm Warning	LMK	Boyle	37 min
Jul 6, 6:24 PM EDT	Severe Thunderstorm Warning	LMK	Green	36 min
Jul 6, 6:32 PM EDT	Severe Thunderstorm Warning	LMK	Taylor	43 min
Jul 6, 6:45 PM EDT	Severe Thunderstorm Warning	LMK	Clinton, Woodford	30 min
Jul 6, 6:54 PM EDT	Severe Thunderstorm Warning	LMK	Scott	36 min
Jul 6, 6:58 PM EDT	Severe Thunderstorm Warning	LMK	Lincoln	32 min
Jul 6, 6:59 PM EDT	Severe Thunderstorm Warning	LMK	Garrard	31 min
Jul 6, 7:11 PM EDT	Severe Thunderstorm Warning	LMK	Adair	34 min
Jul 6, 7:13 PM EDT	Severe Thunderstorm Warning	LMK	Harrison	47 min
Jul 6, 7:17 PM EDT	Severe Thunderstorm Warning	LMK	Casey	43 min
Jul 6, 7:21 PM EDT	Severe Thunderstorm Warning	LMK	Madison	39 min
Jul 6, 7:24 PM EDT	Tornado Warning	LMK	Lincoln	36 min
Jul 6, 7:33 PM EDT	Severe Thunderstorm Warning	LMK	Bourbon	27 min
Jul 6, 7:34 PM EDT	Severe Thunderstorm Warning	LMK	Garrard	41 min
Jul 6, 7:38 PM EDT	Tornado Warning	LMK	Bourbon	22 min
Jul 6, 7:38 PM EDT	Tornado Warning	LMK	Bourbon	37 min
Jul 6, 7:42 PM EDT	Severe Thunderstorm Warning	LMK	Nicholas	43 min
Jul 6, 7:43 PM EDT	Tornado Warning	LMK	Casey	32 min
Jul 6, 7:46 PM EDT	Severe Thunderstorm Warning	LMK	Fayette	29 min
Jul 6, 7:50 PM EDT	Flash Flood Warning	LMK	Bourbon, Harrison, Nicholas	2 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2004 Every severe thunderstorm warning in 2004

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.