Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 83, NWS Wilmington, OH

July 29, 2021Lewis County, Kentucky

NWS Wilmington, OH issued this severe thunderstorm warning at Jul 29, 2021, 9:42 PM EDT for Lewis County, Kentucky. It was in force for 48 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 29, 2021, 9:42 PM EDT (01:42 UTC)
Expired: Jul 29, 2021, 10:30 PM EDT
In force: 48 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lewis County, KY

The radar

The Jackson,KY radar (KJKL), 92 km from the middle of the area, began a volume at 01:42 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 29, 3:13 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.7 hours before the alert went out and 119 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: 2113 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 691 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 137 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 9.2

Open this sounding in Storm Lab

The text

As transmitted.

119 
WUUS51 KILN 300142
SVRILN
KYC135-300230-
/O.NEW.KILN.SV.W.0083.210730T0142Z-210730T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
942 PM EDT Thu Jul 29 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Central Lewis County in northeastern Kentucky...

* Until 1030 PM EDT.

* At 942 PM EDT, a severe thunderstorm was located 4 miles south of 
  Vanceburg, moving southeast at 35 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor hail damage to vehicles is possible. Expect wind 
           damage to trees and power lines.

* Locations impacted include...
  Vanceburg, Head of Grassy, Camp Dix, Harris, Kinniconick, Tannery,
  Emerson, Ribolt, Charters, Petersville, Stricklett, Glen Springs
  and Herron Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 3840 8341 3838 8345 3840 8348 3840 8350
      3841 8351 3841 8353 3859 8357 3860 8326
      3851 8316 3849 8319 3847 8319 3845 8321
      3844 8321 3843 8324 3835 8324 3834 8323
      3832 8328 3833 8332 3832 8335
TIME...MOT...LOC 0142Z 317DEG 32KT 3852 8335 

HAIL...1.00IN
WIND...60MPH
 
$$

Hatzos

4 follow-up statements

540 
WWUS51 KILN 300151
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
951 PM EDT Thu Jul 29 2021

KYC135-300230-
/O.CON.KILN.SV.W.0083.000000T0000Z-210730T0230Z/
Lewis KY-
951 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR CENTRAL LEWIS COUNTY...

At 951 PM EDT, a severe thunderstorm was located near Camp Dix,
moving southeast at 40 mph.

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

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vehicles is possible. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Vanceburg, Head of Grassy, Camp Dix, Charters, Petersville,
Stricklett, Glen Springs, Harris, Kinniconick, Tannery, Emerson and
Ribolt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 3840 8341 3838 8345 3840 8348 3840 8350
      3841 8351 3841 8353 3858 8357 3859 8325
      3851 8316 3849 8319 3847 8319 3845 8321
      3844 8321 3843 8324 3835 8324 3834 8323
      3832 8328 3833 8332 3832 8335
TIME...MOT...LOC 0151Z 320DEG 33KT 3845 8333 

HAIL...1.00IN
WIND...60MPH
 
$$

Hatzos

525 
WWUS51 KILN 300158
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
958 PM EDT Thu Jul 29 2021

KYC135-300230-
/O.CON.KILN.SV.W.0083.000000T0000Z-210730T0230Z/
Lewis KY-
958 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR SOUTHERN LEWIS COUNTY...

At 958 PM EDT, a severe thunderstorm was located over Head of Grassy,
moving southeast at 35 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Head of Grassy, Camp Dix, Petersville, Stricklett, Glen Springs,
Harris, Kinniconick, Tannery and Emerson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 3840 8341 3838 8345 3840 8348 3840 8350
      3841 8351 3841 8353 3853 8356 3856 8321
      3851 8316 3849 8319 3847 8319 3845 8321
      3844 8321 3843 8324 3835 8324 3834 8323
      3832 8328 3833 8332 3832 8335
TIME...MOT...LOC 0158Z 316DEG 29KT 3840 8328 

HAIL...1.50IN
WIND...60MPH
 
$$

Hatzos

982 
WWUS51 KILN 300205
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
1005 PM EDT Thu Jul 29 2021

KYC135-300230-
/O.CON.KILN.SV.W.0083.000000T0000Z-210730T0230Z/
Lewis KY-
1005 PM EDT Thu Jul 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR SOUTHERN LEWIS COUNTY...

At 1005 PM EDT, a severe thunderstorm was located near Head of
Grassy, moving southeast at 35 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to trees and power lines.

Locations impacted include...
Head of Grassy, Camp Dix, Harris, Petersville, Emerson and
Stricklett.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, go to our website at weather.gov/iln and
submit your report via social media, when you can do so safely.

&&

LAT...LON 3840 8341 3838 8345 3840 8348 3840 8350
      3841 8351 3841 8353 3847 8351 3851 8316
      3849 8319 3847 8319 3845 8321 3844 8321
      3843 8324 3835 8324 3834 8323 3832 8328
      3833 8332 3832 8335
TIME...MOT...LOC 0205Z 317DEG 32KT 3835 8322 

HAIL...1.75IN
WIND...60MPH
 
$$

Hatzos

879 
WWUS51 KILN 300222
SVSILN

Severe Weather Statement
National Weather Service Wilmington OH
1022 PM EDT Thu Jul 29 2021

KYC135-300232-
/O.EXP.KILN.SV.W.0083.000000T0000Z-210730T0230Z/
Lewis KY-
1022 PM EDT Thu Jul 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LEWIS COUNTY WILL
EXPIRE AT 1030 PM EDT...
        
A flash flood warning remains in effect for Lewis County.

Please report previous wind damage or hail to the National Weather
Service by going to our website at weather.gov/iln and submitting
your report via social media.

LAT...LON 3840 8341 3838 8345 3840 8348 3840 8350
      3841 8351 3841 8353 3847 8351 3851 8316
      3849 8319 3847 8319 3845 8321 3844 8321
      3843 8324 3835 8324 3834 8323 3832 8328
      3833 8332 3832 8335
TIME...MOT...LOC 0222Z 317DEG 32KT 3824 8309 

$$

Hatzos

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 29, 8:11 PM EDT	Flash Flood Warning	ILN	Lewis	4 hr
Jul 29, 8:36 PM EDT	Severe Thunderstorm Warning	ILN	Lewis	28 min
Jul 29, 8:45 PM EDT	Areal Flood Advisory	ILN	Lewis	3 hr
Jul 29, 9:29 PM EDT	Flash Flood Warning	ILN	Lewis, Mason	4 hr
Jul 29, 9:47 PM EDT	Areal Flood Advisory	ILN	Bracken, Mason	3 hr
Jul 30, 1:18 AM EDT	Areal Flood Warning	ILN	Lewis, Mason	7 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.