Alert archive / Kentucky / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 217, NWS Louisville, KY

July 9, 2003Allen County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 9, 2003, 5:18 PM CDT for Allen County, Kentucky. It was in force for 42 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 9, 2003, 5:18 PM CDT (22:18 UTC)
Expired: Jul 9, 2003, 6:00 PM CDT
In force: 42 min
Issued by: NWS Louisville, KY
Area: Counties, with a storm outline in the text

County Allen County, KY

The radar

The Nashville radar (KOHX), 64 km from the middle of the area, began a volume at 22:19 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.3 hours before the alert went out and 77 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: 1987 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 615 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 53 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.

179 
WUUS53 KLMK 092218
SVRLMK
KYC003-092300-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LOUISVILLE KY
517 PM CDT WED JUL 9 2003

THE NATIONAL WEATHER SERVICE IN LOUISVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ALLEN COUNTY IN SOUTH CENTRAL KENTUCKY

* UNTIL 600 PM CDT

* AT 513 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM MAYNARD TO MT. ARIEAL...OR FROM
  26 MILES SOUTHEAST OF BOWLING GREEN TO 19 MILES SOUTHEAST OF
  BOWLING GREEN...MOVING EAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SCOTTSVILLE AROUND 525 PM CDT
  MAYNARD AROUND 525 PM CDT
  HOLLAND AROUND 540 PM CDT

HAIL...DAMAGING WINDS...TORRENTIAL RAIN...AND INTENSE AND DANGEROUS 
LIGHTNING ARE LIKELY WITH THESE STORMS. TAKE COVER IN A STURDY 
BUILDING UNTIL THIS LINE OF STORMS HAS PASSED. STAY AWAY FROM 
WINDOWS AND ANY DOWNED POWER LINES.

LAT...LON 3665 8608 3665 8641 3678 8641 3686 8612
          3674 8599 3667 8597 3664 8592 3664 8606

$$
FUNK

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 9, 2:17 PM CDT, 3 hours 1 minute earlier.

Area forecast discussion, Jul 9, 2:17 PM CDT, 3 hours 1 minute before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOUISVILLE KY
317 PM EDT WED JUL 9 2003

BOUNDARY LOCATED ACROSS CENTRAL KENTUCKY THIS AFTERNOON RELATED TO
OUTFLOW FROM EARLY MORNING CONVECTIVE SYSTEM TO THE NORTH. SMALL
SWATH OF HEAVY RAIN...BEGINNING TO TAPER OFF...ACROSS EASTERN
PORTION OF OUR FA IN RELATION TO BOUNDARY...WHICH STRETCHES INTO
PORTIONS OF WEST VA AND SRN OH.

AFOREMENTIONED BOUNDARY WILL MOVE LITTLE INTO THE EVENING. EXPECT
SCATTERED DIURNALLY DRIVEN CONVECTION TO CONTINUE THEN TAPER OFF
BEFORE MIDNIGHT. HOWEVER 06Z GFS HAD A GOOD PROG ON MINOR SHORTWAVE
TO ADVECT INTO CENTRAL KENTUCKY LATE TONIGHT...AROUND 08 TO 12Z.
THUS SOME NOCTURNAL CONVECTION SHOULD FIRE DURING THAT TIMEFRAME AND
HIGHEST COVERAGE SHOULD BE IN PROXIMITY TO SAID BOUNDARY...SOUTH OF
THE I/64 CORRIDOR AND ESPECIALLY IN EAST CENTRAL KENTUCKY. 12Z
SOUNDINGS FROM BNA/ILN INDICATE PWS AROUND 1.80 INCHES. ETA MODEL
SOUNDINGS INCREASE PWS LATE TNGT TO 2 INCHES OR SLIGHTLY BETTER
UNDER INCREASING SWLY 850MB FLOW. CONVERGENCE ALONG BOUNDARIES IN
CONJUNCTION WITH MINOR BUT INCREASING MASS UPPER LEVEL DIVERGENCE
COULD SUPPORT HEAVY RAINFALL IN SAID PROXIMITY LATE TONIGHT. WILL
HOLD OFF ON FLOOD WATCH DUE TO MAINLY LOCALIZED COVERAGE...BUT WILL
MENTION HWVR RAINFALL POSSIBLE IN E CTRL KY AGAIN LATE TNGT.

A LULL IN CONVECTION SHOULD COME FROM ABOUT MID MORNING THROUGH MID
AFTERNOON UNDER BIT OF NVA. THEN AS COLD FRONT APPROACHES AND STRONG
SHORTWAVE SHARPENS UP LATE AFTERNOON...EXPECT ENOUGH COVERAGE TO
WARRANT LIKELY POPS AS CURRENT FCST ALREADY ADVERTISES BUT WILL
EXTEND LIKELY FURTHER INTO THU NIGHT PERIOD THEN TAPER OFF FROM NW
TO SE AFTER MIDNIGHT. FRIDAY...ISLTD PCPN POSSIBLE IN NWLY FLOW
COMBINED WITH SOME REMNANT LOW LEVEL MOISTURE. WILL HAVE 14 GRID
POPS BUT NO MENTION IN THE FORECAST. SATURDAY WILL FORECAST MAINLY
CLEAR SKIES AND SOME ADDITIONAL WARMING BACK TO NEAR SEASONAL NORMS
UNDER SOME BRIEF SATURDAY MORNING U/L RIDGING BEFORE EASTERN RIDGE
REINFORCES.

.EXTENDED...SATURDAY THROUGH WEDNESDAY.

TROUGHING OVER THE EASTERN STATES WILL CONTINUE THROUGH THE WEEKEND
INTO EARLY NEXT WEEK. PARTLY CLOUDY CONDITIONS AND TEMPS JUST BELOW
NORMAL THIS WEEKEND. MODELS SHOW SOME PRECIP POSSIBLE...ESPECIALLY
SUNDAY ASSOCIATED WITH A RIPPLE ALONG THE BACK EDGE OF THE
TROUGH...IT MAY BRING SOME CLOUDS BUT LACK OF MOISTURE WILL KEEP
RAIN AWAY. DRY PATTERN WILL EXIST UNTIL MID WEEK AS THE NEXT FRONT
WILL APPROACH ON WEDNESDAY. TEMPS WILL CLIMB ABOVE NORMAL ON MONDAY
THRU WEDNESDAY...AND HUMID CONDITIONS WILL RETURN AS WEAK SOUTHERLY
FLOW KICKS IN ON MONDAY.

.LMK...NONE.

JB - SCHOTT

Hazardous weather outlook, Jul 9, 11:44 AM CDT, 5 hours 34 minutes before

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-100930-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LOUISVILLE KY
1244 PM EDT WED JUL 9 2003

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED THUNDERSTORMS ARE FORECAST THIS AFTERNOON AND TONIGHT
ACROSS THE OUTLOOK AREA. SOME OF THE STORMS MAY PRODUCE GUSTY WINDS
UP TO 50 MPH AND FREQUENT LIGHTNING...AS WELL AS LOCALIZED HEAVY
RAIN. THE STORM PREDICTION CENTER HAS INDICATED A SLIGHT RISK OF
SEVERE WEATHER WITH THE SCATTERED THUNDERSTORMS THIS AFTERNOON AND
THIS EVENING. IN ADDITION...SOME LOCALIZED FLOODING PROBLEMS MAY
RESULT FROM THE HEAVY RAINS.

AFTERNOON HEAT INDICES WILL WARM TO BETWEEN 95 AND 100 DEGREES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS WILL BE LIKELY THURSDAY AS A COOL FRONT APPROACHES THE
LOWER OHIO VALLEY. SOME OF THESE STORMS WILL BE CAPABLE OF PRODUCING
STRONG WINDS AND VERY HEAVY RAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS AND LAW ENFORCEMENT OFFICIALS ARE ENCOURAGED TO CONTACT THE
NATIONAL WEATHER SERVICE SHOULD THEY OBSERVE ANY SEVERE WEATHER OR
FLOODING.

JB

In the hours before

Local storm report, Jul 9, 4:30 PM CDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
0530 PM EDT WED JUL 09 2003

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0524 PM    SCOTTSVILLE               KY   0.75 IN HAIL
07/09/03   ALLEN

0524 PM    SCOTTSVILLE               KY   0.75 IN HAIL
07/09/03   ALLEN                          REPORTED BY RESCUE SQUAD.

PKW

Local storm report, Jul 9, 4:30 PM CDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTION...
NATIONAL WEATHER SERVICE LOUISVILLE KY
0530 PM EDT WED JUL 09 2003

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0524 PM    SCOTTSVILLE               KY   0.75 IN HAIL
07/09/03   ALLEN                          REPORTED BY RESCUE SQUAD.

PKW...CORRECTED TO ONE REPORT

Local storm report, Jul 9, 5:07 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
0607 PM EDT WED JUL 09 2003

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0550 PM    GLASGOW                   KY   0.75 IN HAIL
07/09/03   BARREN                         REPORTED BY LAW
                                          ENFORCEMENT

PKW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 11:49 AM CDT	Flash Flood Warning	LMK	Casey, Lincoln	3 hr
Jul 9, 3:55 PM CDT	Severe Thunderstorm Warning	LMK	Hart	40 min
Jul 9, 4:38 PM CDT	Severe Thunderstorm Warning	LMK	Barren	42 min
Jul 9, 4:55 PM CDT	Severe Thunderstorm Warning	LMK	Metcalfe	35 min
Jul 9, 5:33 PM CDT	Severe Thunderstorm Warning	LMK	Simpson	27 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2003 Every severe thunderstorm warning in 2003

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.