Alert archive / Kentucky / Special Weather Statements in 2020

Special Weather Statement, NWS Charleston, WV

June 20, 2020Carter County, Greenup County, Kentucky

NWS Charleston, WV issued this special weather statement at Jun 20, 2020, 12:50 AM EDT for Carter County, Greenup County, Kentucky. It was in force for 40 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
Jun 20, 2020, 12:50 AM EDT (04:50 UTC)
Expired
Jun 20, 2020, 1:30 AM EDT
In force
40 min
Issued by
NWS Charleston, WV

Counties Carter County, KY, Greenup County, KY

The radar

The Jackson,KY radar (KJKL), 79 km from the middle of the area, began a volume at 04:53 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

Roanoke, VA (KRNK), launched 00:00Z, 4.8 hours before the alert went out and 330 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, Roanoke, VA at 00:00Z on 2020-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 155 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2020-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
155 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
866 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, WV wrote its last area forecast discussion before this special weather statement went out at Jun 19, 10:47 PM EDT, 2 hours 3 minutes earlier.

Area forecast discussion, Jun 19, 10:47 PM EDT, 2 hours 3 minutes before
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Hazardous weather outlook, Jun 19, 10:53 PM EDT, 1 hour 57 minutes before
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In the hours before

Special weather statement, Jun 19, 7:22 PM EDT, 5 hours 28 minutes before
Special Weather Statement
National Weather Service Charleston WV
722 PM EDT Fri Jun 19 2020

WVZ521>523-525-526-192345-
Southeast Webster-Northwest Randolph-Northwest Pocahontas-Northwest
Webster-Southeast Randolph-
722 PM EDT Fri Jun 19 2020

...A HEAVY THUNDERSTORM WILL AFFECT SOUTHWESTERN RANDOLPH...WEST
CENTRAL POCAHONTAS AND CENTRAL WEBSTER COUNTIES...

At 720 PM EDT, a heavy thunderstorm was located near Holly River
State, or near Webster Springs, moving southeast at 15 mph.

Torrential rainfall is occurring with this and other heavy
thunderstorms in the area. One or two inches are possible within 30
minutes, which may cause localized flooding. Do not drive your
vehicle through flooded roadways. Watch for a quick drop in
visibility, ponding and hydroplaning.

Wind gusts of 40 mph and pea size hail are possible with this storm.

Locations impacted include...
Webster Springs, Addison (Webster Springs), Mill Creek, Holly River
State, Huttonsville, Diana, Monterville, Slaty Fork, Helvetia,
Pickens, Waneta, Hacker Valley and Bergoo.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to travel across
flooded roads. Find alternate routes. It takes only a few inches of
swiftly flowing water to carry vehicles away.

LAT...LON 3874 7993 3833 8018 3853 8061 3871 8036
      3871 8033 3869 8032 3869 8030 3872 8026
TIME...MOT...LOC 2320Z 299DEG 14KT 3857 8037

19
Local storm report, Jun 19, 9:23 PM EDT, 3 hours 27 minutes before
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Special weather statement, Jun 20, 12:50 AM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:05 PM EDTFlash Flood WarningRLXRandolph, Webster3 hr
Jun 20, 1:30 AM EDTSpecial Weather StatementRLXCarter45 min

Nearby

Special Weather Statements in Kentucky, 2020Every special weather statement in 2020

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.