Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 124, NWS Charleston, WV

December 6, 2021Greenup County, Kentucky

NWS Charleston, WV issued this severe thunderstorm warning at Dec 6, 2021, 5:54 AM EST for Greenup County, Kentucky. It was in force for 36 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
Dec 6, 2021, 5:54 AM EST (10:54 UTC)
Expired
Dec 6, 2021, 6:30 AM EST
In force
36 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

County Greenup County, KY

The radar

The Cincinnati radar (KILN), 112 km from the middle of the area, began a volume at 10:54 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 00:00Z, 10.9 hours before the alert went out and 112 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, Cncnati-Daytn, OH at 00:00Z on 2021-12-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Cncnati-Daytn, OH at 00:00Z on 2021-12-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 432 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
934 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
432 m²/s²
0-3 km storm-relative helicity
509 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

654 
WUUS51 KRLX 061054
SVRRLX
KYC089-061130-
/O.NEW.KRLX.SV.W.0124.211206T1054Z-211206T1130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Charleston WV
554 AM EST Mon Dec 6 2021

The National Weather Service in Charleston West Virginia has issued a

* Severe Thunderstorm Warning for...
  Northwestern Greenup County in northeastern Kentucky...

* Until 630 AM EST.

* At 553 AM EST, a severe thunderstorm was located near Vanceburg, or
  18 miles northwest of Carter Caves State Park, moving northeast at
  35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Greenup, Letitia, South Shore, Grays Branch and South Portsmouth. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3859 8307 3863 8308 3865 8305 3866 8305
      3868 8303 3872 8303 3873 8297 3875 8293
      3875 8288 3874 8287 3869 8288 3866 8286
      3860 8285 3857 8281 3854 8311
TIME...MOT...LOC 1053Z 247DEG 32KT 3861 8327 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

11
1 follow-up statement
925 
WWUS51 KRLX 061134
SVSRLX

Severe Weather Statement
National Weather Service Charleston WV
634 AM EST Mon Dec 6 2021

KYC089-061144-
/O.EXP.KRLX.SV.W.0124.000000T0000Z-211206T1130Z/
Greenup KY-
634 AM EST Mon Dec 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GREENUP COUNTY
HAS EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.

LAT...LON 3859 8307 3863 8308 3865 8305 3866 8305
      3868 8303 3872 8303 3873 8297 3875 8293
      3875 8288 3874 8287 3869 8288 3866 8286
      3860 8285 3857 8281 3854 8311
TIME...MOT...LOC 1134Z 247DEG 32KT 3873 8290 

$$

11

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 6, 6:12 AM ESTSpecial Weather StatementRLXBoyd, Carter48 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.