Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 96, NWS Louisville, KY

August 13, 2021Marion County, Washington County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Aug 13, 2021, 5:39 PM EDT for Marion County, Washington 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
Aug 13, 2021, 5:39 PM EDT (21:39 UTC)
Expired
Aug 13, 2021, 6:15 PM EDT
In force
36 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Marion County, KY, Washington County, KY

The radar

The Louisville radar (KLVX), 72 km from the middle of the area, began a volume at 21:38 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

TimeReportWhereRemark
Aug 13, 5:49 PM EDTTSTM WND DMG1 Ese Springfield, KYTHREE SMALL TREES DOWN.

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

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 9.7 hours before the alert went out and 207 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 2021-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1072 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 2021-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
1072 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
1013 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
54 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

732 
WUUS53 KLMK 132139
SVRLMK
KYC155-229-132215-
/O.NEW.KLMK.SV.W.0096.210813T2139Z-210813T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
539 PM EDT Fri Aug 13 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Central Marion County in central Kentucky...
  Southern Washington County in central Kentucky...

* Until 615 PM EDT.

* At 539 PM EDT, a severe thunderstorm was located near Springfield,
  moving northeast at 10 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Springfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Louisville.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3755 8526 3762 8537 3781 8527 3769 8504
TIME...MOT...LOC 2139Z 212DEG 10KT 3764 8528 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

EBW
1 follow-up statement
340 
WWUS53 KLMK 132207
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
607 PM EDT Fri Aug 13 2021

KYC155-229-132217-
/O.EXP.KLMK.SV.W.0096.000000T0000Z-210813T2215Z/
Marion KY-Washington KY-
607 PM EDT Fri Aug 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MARION AND SOUTHERN
WASHINGTON COUNTIES WILL EXPIRE AT 615 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 3755 8526 3762 8537 3781 8527 3769 8504
TIME...MOT...LOC 2207Z 212DEG 10KT 3770 8523 

$$

EBW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 8:31 PM EDTSpecial Weather StatementLMKMeade29 min
Aug 12, 9:03 PM EDTSpecial Weather StatementLMKHenry27 min
Aug 12, 9:26 PM EDTSpecial Weather StatementLMKSpencer19 min
Aug 12, 9:45 PM EDTSpecial Weather StatementLMKShelby30 min
Aug 12, 9:52 PM EDTSpecial Weather StatementLMKSpencer23 min
Aug 12, 10:04 PM EDTSevere Thunderstorm WarningLMKShelby, Spencer14 min
Aug 12, 10:14 PM EDTSpecial Weather StatementLMKFranklin31 min
Aug 12, 10:32 PM EDTSpecial Weather StatementLMKAnderson, Harrison, Scott, Woodford28 min
Aug 12, 11:08 PM EDTSpecial Weather StatementLMKScott22 min
Aug 12, 11:53 PM EDTSpecial Weather StatementLMKGrayson37 min
Aug 13, 1:49 PM EDTSpecial Weather StatementLMKNicholas26 min
Aug 13, 2:17 PM EDTSpecial Weather StatementLMKScott28 min
Aug 13, 3:07 PM EDTSpecial Weather StatementLMKMetcalfe23 min
Aug 13, 3:28 PM EDTAreal Flood AdvisoryLMKMetcalfe, Monroe2 hr
Aug 13, 3:51 PM EDTFlash Flood WarningLMKMetcalfe, Monroe3 hr
Aug 13, 4:15 PM EDTSpecial Weather StatementLMKMetcalfe15 min
Aug 13, 4:49 PM EDTAreal Flood AdvisoryLMKBarren, Metcalfe, Monroe3 hr
Aug 13, 5:16 PM EDTSpecial Weather StatementLMKWashington29 min
Aug 13, 5:21 PM EDTSpecial Weather StatementLMKMarion24 min
Aug 13, 5:46 PM EDTSpecial Weather StatementLMKBourbon29 min
Aug 13, 5:51 PM EDTSpecial Weather StatementLMKScott24 min
Aug 13, 5:56 PM EDTSpecial Weather StatementLMKHarrison19 min
Aug 13, 5:59 PM EDTSpecial Weather StatementLMKFayette31 min
Aug 13, 6:04 PM EDTSpecial Weather StatementLMKAnderson26 min
Aug 13, 6:11 PM EDTSpecial Weather StatementLMKJessamine34 min
Aug 13, 6:13 PM EDTSpecial Weather StatementLMKNelson32 min
Aug 13, 6:21 PM EDTAreal Flood AdvisoryLMKFayette, Jessamine3 hr
Aug 13, 6:24 PM EDTSpecial Weather StatementLMKEdmonson36 min
Aug 13, 6:25 PM EDTAreal Flood AdvisoryLMKScott, Woodford3 hr
Aug 13, 6:27 PM EDTSpecial Weather StatementLMKNicholas33 min
Aug 13, 6:33 PM EDTSpecial Weather StatementLMKAnderson27 min
Aug 13, 6:36 PM EDTSpecial Weather StatementLMKBullitt24 min
Aug 13, 6:48 PM EDTSpecial Weather StatementLMKNelson27 min
Aug 13, 7:11 PM EDTSpecial Weather StatementLMKNelson19 min
Aug 13, 7:49 PM EDTSpecial Weather StatementLMKShelby11 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.