Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Louisville, KY

July 25, 2021Butler County, Logan County, Kentucky

NWS Louisville, KY issued this special weather statement at Jul 25, 2021, 2:25 PM CDT for Butler County, Logan County, Kentucky. It was in force for 35 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 25, 2021, 2:25 PM CDT (19:25 UTC)
Expired
Jul 25, 2021, 3:00 PM CDT
In force
35 min
Issued by
NWS Louisville, KY

Counties Butler County, KY, Logan County, KY

The radar

The Ft Campbell radar (KHPX), 56 km from the middle of the area, began a volume at 19:26 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, 7.4 hours before the alert went out and 116 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 12:00Z on 2021-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 961 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2021-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939Sfc1 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
961 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1017 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

976 
WWUS83 KLMK 251925
SPSLMK

Special Weather Statement
National Weather Service Louisville KY
225 PM CDT Sun Jul 25 2021

KYZ026-061-070-071-252000-
Warren-Logan-Butler-Ohio-
225 PM CDT Sun Jul 25 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN LOGAN...WESTERN
BUTLER...NORTHWESTERN WARREN AND SOUTH CENTRAL OHIO COUNTIES...

At 224 PM CDT, a cluster of strong thunderstorms was located 8 miles 
east of Dunmor, moving southeast at 20 mph.

Winds in excess of 40 mph are possible with these storms. 

Locations impacted include...
Russellville, Morgantown, Anderson, Lewisburg, Rochester, Woodbury,
Insco, Mining City, Dimple and Spa.

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3706 8705 3707 8694 3709 8690 3710 8690
      3711 8689 3714 8693 3718 8692 3718 8689
      3719 8691 3722 8690 3723 8692 3724 8691
      3724 8694 3726 8696 3726 8697 3728 8698
      3736 8688 3712 8650 3675 8692 3689 8706
TIME...MOT...LOC 1924Z 307DEG 17KT 3714 8686 

$$

EBW

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 1:33 PM CDTSpecial Weather StatementLMKMetcalfe27 min
Jul 25, 1:35 PM CDTSpecial Weather StatementLMKEdmonson25 min
Jul 25, 2:02 PM CDTSpecial Weather StatementLMKButler13 min
Jul 25, 2:17 PM CDTSpecial Weather StatementLMKGreen28 min

Nearby

Special Weather Statements in Kentucky, 2021Every special weather statement in 2021

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.