Alert archive / Kentucky / Special Weather Statements in 2012

Special Weather Statement, NWS Louisville, KY

August 9, 2012Allen County, Kentucky

NWS Louisville, KY issued this special weather statement at Aug 9, 2012, 10:13 AM 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: Aug 9, 2012, 10:13 AM CDT (15:13 UTC)
Expired: Aug 9, 2012, 10:55 AM CDT
In force: 42 min
Issued by: NWS Louisville, KY

County Allen County, KY

The radar

The Nashville radar (KOHX), 59 km from the middle of the area, began a volume at 15:16 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 12:00Z, 3.2 hours before the alert went out and 72 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: 2387 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1138 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

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

426 
WWUS83 KLMK 091513
SPSLMK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1113 AM EDT THU AUG 9 2012

KYC003-009-171-213-091555-
MONROE KY-SIMPSON KY-ALLEN KY-BARREN KY-
1013 AM CDT THU AUG 9 2012

...A GUST FRONT ASSOCIATED WITH STORMS IN TENNESSEE WILL MOVE 
NORTHEAST ACROSS EASTERN SIMPSON...MONROE...AND ALLEN COUNTIES 
THROUGH 1030 AM CDT...

AT 1006 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING 
STRONG THUNDERSTORMS JUST SOUTHWEST OF ALLEN COUNTY. THESE STORMS 
HAVE INITIATED A GUST FRONT THAT WILL BRING WINDS UP TO 40 MPH TO 
EASTERN SIMPSON...ALLEN...AND EVENTUALLY MONROE COUNTIES. AREAS 
ALONG THE TENNESSEE BORDER WILL EXPERIENCE THE STRONGEST WINDS. 

* THESE STORMS WILL ALSO IMPACT...
  FRANKLIN...
  SCOTTSVILLE...
  MCELROY FORD AND MOUNT AERIAL...
  POPE AND BUTLERSVILLE...
  WEST FORK AND HALFWAY...
  HALIFAX AND RALEY FORD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE AWARE THAT THIS GUST FRONT WILL PRECEDE ANY RAINFALL.



&&

LAT...LON 3665 8636 3664 8653 3672 8663 3678 8639
      3689 8623 3663 8560 3661 8562
TIME...MOT...LOC 1508Z 231DEG 34KT 3667 8642 3636 8603

$$

JSD

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 12:05 PM CDT	Special Weather Statement	LMK	Hardin	30 min
Aug 9, 2:32 PM CDT	Severe Thunderstorm Warning	LMK	Madison	33 min
Aug 9, 2:35 PM CDT	Areal Flood Advisory	LMK	Lincoln	2 hr
Aug 9, 2:35 PM CDT	Severe Thunderstorm Warning	LMK	Fayette, Jessamine	28 min
Aug 9, 2:38 PM CDT	Flash Flood Warning	LMK	Madison	85 min
Aug 9, 2:55 PM CDT	Areal Flood Advisory	LMK	Fayette, Jessamine	3 hr
Aug 9, 3:06 PM CDT	Special Weather Statement	LMK	Fayette, Jessamine, Woodford	44 min
Aug 9, 3:15 PM CDT	Severe Thunderstorm Warning	LMK	Fayette, Woodford	30 min
Aug 9, 3:34 PM CDT	Special Weather Statement	LMK	Bourbon, Harrison, Nicholas, Scott	46 min
Aug 9, 3:50 PM CDT	Severe Thunderstorm Warning	LMK	Harrison	45 min
Aug 9, 4:04 PM CDT	Special Weather Statement	LMK	Henry	46 min
Aug 9, 4:23 PM CDT	Severe Thunderstorm Warning	LMK	Harrison	22 min
Aug 9, 4:25 PM CDT	Severe Thunderstorm Warning	LMK	Franklin, Henry, Shelby	40 min
Aug 9, 4:30 PM CDT	Special Weather Statement	LMK	Harrison	45 min
Aug 9, 4:46 PM CDT	Special Weather Statement	LMK	Harrison	44 min
Aug 9, 5:07 PM CDT	Special Weather Statement	LMK	Franklin	43 min
Aug 9, 5:11 PM CDT	Special Weather Statement	LMK	Bourbon, Scott	44 min
Aug 9, 5:17 PM CDT	Special Weather Statement	LMK	Harrison	43 min
Aug 9, 1:48 PM CDT	Special Weather Statement	LMK	Crawford	27 min
Aug 9, 2:00 PM CDT	Special Weather Statement	LMK	Orange, Washington	30 min
Aug 9, 2:18 PM CDT	Special Weather Statement	LMK	Floyd, Harrison	27 min
Aug 9, 2:30 PM CDT	Special Weather Statement	LMK	Orange, Scott, Washington	45 min
Aug 9, 2:43 PM CDT	Severe Thunderstorm Warning	LMK	Jefferson, Scott	32 min
Aug 9, 2:47 PM CDT	Areal Flood Advisory	LMK	Orange	118 min
Aug 9, 2:58 PM CDT	Areal Flood Advisory	LMK	Crawford, Harrison	2 hr
Aug 9, 2:58 PM CDT	Severe Thunderstorm Warning	LMK	Clark, Scott	32 min
Aug 9, 3:04 PM CDT	Special Weather Statement	LMK	Crawford	31 min
Aug 9, 3:33 PM CDT	Flash Flood Warning	LMK	Crawford, Orange	2 hr
Aug 9, 4:54 PM CDT	Special Weather Statement	LMK	Dubois	31 min

Nearby

Special Weather Statements in Kentucky, 2012 Every special weather statement in 2012

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.