Alert archive / Kentucky / Special Weather Statements in 2017

Special Weather Statement, NWS Louisville, KY

August 3, 2017Hardin County, Kentucky

NWS Louisville, KY issued this special weather statement at Aug 3, 2017, 3:20 PM EDT for Hardin County, Kentucky. It was in force for 25 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 3, 2017, 3:20 PM EDT (19:20 UTC)
Expired: Aug 3, 2017, 3:45 PM EDT
In force: 25 min
Issued by: NWS Louisville, KY

County Hardin County, KY

The radar

The Louisville radar (KLVX), 50 km from the middle of the area, began a volume at 19:19 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.3 hours before the alert went out and 285 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: 338 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 839 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 3, 1:24 PM EDT, 1 hour 56 minutes earlier.

Area forecast discussion, Aug 3, 1:24 PM EDT, 1 hour 56 minutes before

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Hazardous weather outlook, Aug 3, 3:49 AM EDT, 11 hours 31 minutes before

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In the hours before

Special weather statement, Aug 3, 3:20 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Louisville KY
320 PM EDT THU AUG 3 2017

KYZ028-053-031945-
Hardin-Larue-
320 PM EDT THU AUG 3 2017

...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL LARUE AND
SOUTHEASTERN HARDIN COUNTIES...

At 320 PM EDT, a strong thunderstorm was located 14 miles east of
Leitchfield, moving northeast at 20 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Elizabethtown, Sonora, Spurrier, Seven Corners, White Mills, Flint
Hill, White Mills Junction, Glendale, Nolin and Harcourt.

LAT...LON 3768 8587 3753 8574 3745 8605 3747 8606
      3748 8605 3749 8605 3749 8606 3750 8605
      3750 8606 3751 8607 3755 8610
TIME...MOT...LOC 1920Z 246DEG 16KT 3751 8604

DM

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 3:36 PM EDT	Special Weather Statement	LMK	Oldham	24 min
Aug 3, 3:44 PM EDT	Special Weather Statement	LMK	Hardin	16 min
Aug 3, 4:04 PM EDT	Special Weather Statement	LMK	Henry	26 min
Aug 3, 4:28 PM EDT	Areal Flood Advisory	LMK	Bullitt	62 min
Aug 3, 4:33 PM EDT	Areal Flood Advisory	LMK	Henry, Oldham	57 min
Aug 3, 4:36 PM EDT	Special Weather Statement	LMK	Oldham	24 min
Aug 3, 4:45 PM EDT	Flash Flood Warning	LMK	Henry, Oldham	2 hr
Aug 3, 4:58 PM EDT	Special Weather Statement	LMK	Henry	17 min
Aug 3, 5:47 PM EDT	Special Weather Statement	LMK	Trimble	28 min
Aug 3, 6:02 PM EDT	Areal Flood Advisory	LMK	Oldham, Trimble	118 min
Aug 3, 6:28 PM EDT	Special Weather Statement	LMK	Scott	32 min

Nearby

Special Weather Statements in Kentucky, 2017 Every special weather statement in 2017

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.