Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 38, NWS Wilmington, OH

June 18, 20216 counties in Kentucky

NWS Wilmington, OH issued this severe thunderstorm warning at Jun 18, 2021, 9:23 PM EDT for 6 counties in Kentucky. It was in force for 52 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: Jun 18, 2021, 9:23 PM EDT (01:23 UTC)
Expired: Jun 18, 2021, 10:15 PM EDT
In force: 52 min
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Campbell County, KY, Gallatin County, KY, Grant County, KY, Kenton County, KY, Owen County, KY, Pendleton County, KY

The radar

The Cincinnati radar (KILN), 109 km from the middle of the area, began a volume at 01:22 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

Time	Report	Where	Remark
Jun 18, 9:53 PM EDT	TSTM WND DMG	2 Nw Falmouth, KY	NUMEROUS TREES REPORTED DOWN ACROSS THE COUNTY. TIME ESTIMATED USING RADAR DATA.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 18, 9:09 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.4 hours before the alert went out and 111 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: 2257 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 1236 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 17.6

Open this sounding in Storm Lab

The text

As transmitted.

071 
WUUS51 KILN 190123
SVRILN
KYC037-077-081-117-187-191-190215-
/O.NEW.KILN.SV.W.0038.210619T0123Z-210619T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wilmington OH
923 PM EDT Fri Jun 18 2021

The National Weather Service in Wilmington has issued a

* Severe Thunderstorm Warning for...
  Southern Kenton County in northern Kentucky...
  Southern Campbell County in northern Kentucky...
  Grant County in northern Kentucky...
  Central Owen County in northern Kentucky...
  Pendleton County in northern Kentucky...
  Eastern Gallatin County in northern Kentucky...

* Until 1015 PM EDT.

* At 922 PM EDT, severe thunderstorms were located along a line
  extending from Union to near Florence, moving southeast at 45 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Independence, Williamstown, Walton, Falmouth, Crittenden, Dry
  Ridge, Butler, Morgan, Glencoe, Corinth, Sparta, Browning Corner,
  Stewartsville, Elk Lake, Atwood, Northcutt, Natlee, Bracht,
  Gardnersville and Fiskburg.

This includes I-75 in Kentucky between mile markers 144 and 169.
 
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.

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

&&

LAT...LON 3840 8468 3866 8493 3870 8487 3871 8483
      3870 8481 3873 8478 3877 8478 3878 8466
      3880 8461 3887 8460 3896 8461 3875 8423
      3859 8420 3856 8441 3856 8442 3854 8442
      3853 8445 3854 8447 3851 8449 3849 8456
TIME...MOT...LOC 0122Z 317DEG 39KT 3895 8468 3881 8499 

HAIL...<.75IN
WIND...70MPH
 
$$

Franks

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 8:56 PM EDT	Severe Thunderstorm Warning	ILN	Boone, Gallatin	34 min
Jun 18, 9:11 PM EDT	Tornado Warning	ILN	Boone, Campbell, Kenton	34 min
Jun 18, 9:15 PM EDT	Severe Thunderstorm Warning	ILN	Campbell	45 min
Jun 18, 9:30 PM EDT	Severe Thunderstorm Warning	ILN	Boone, Gallatin	15 min
Jun 18, 9:39 PM EDT	Areal Flood Advisory	ILN	Boone, Campbell, Kenton	3 hr
Jun 18, 9:49 PM EDT	Severe Thunderstorm Warning	ILN	Bracken, Campbell, Lewis, Mason, Pendleton, Robertson	56 min
Jun 18, 10:34 PM EDT	Severe Thunderstorm Warning	ILN	Lewis, Mason, Robertson	41 min
Jun 18, 11:24 PM EDT	Special Weather Statement	ILN	Carroll	36 min
Jun 18, 11:59 PM EDT	Areal Flood Advisory	ILN	Carroll, Owen	3 hr
Jun 19, 12:05 AM EDT	Special Weather Statement	ILN	Carroll, Owen	40 min
Jun 19, 12:23 AM EDT	Flash Flood Warning	ILN	Carroll, Owen	4 hr
Jun 19, 12:47 AM EDT	Special Weather Statement	ILN	Owen	28 min
Jun 19, 1:28 AM EDT	Flash Flood Warning	ILN	Carroll, Gallatin, Grant, Owen	4 hr
Jun 19, 4:40 AM EDT	Areal Flood Advisory	ILN	Boone, Gallatin	5 hr
Jun 19, 4:47 AM EDT	Areal Flood Warning	ILN	Carroll, Owen	6 hr
Jun 19, 8:11 AM EDT	Special Weather Statement	ILN	Carroll, Gallatin	34 min
Jun 19, 8:16 AM EDT	Areal Flood Advisory	ILN	Campbell, Kenton, Pendleton	5 hr
Jun 19, 8:46 AM EDT	Special Weather Statement	ILN	Campbell, Grant, Kenton, Owen, Pendleton	44 min
Jun 19, 9:08 AM EDT	Areal Flood Advisory	ILN	Bracken, Campbell, Pendleton	3 hr
Jun 19, 10:02 AM EDT	Areal Flood Warning	ILN	Boone, Gallatin	6 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.