Alert archive / Kentucky / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 21, NWS Jackson, KY

March 27, 20175 counties in Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Mar 27, 2017, 8:06 PM EDT for 5 counties in Kentucky. It was in force for 24 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
Mar 27, 2017, 8:06 PM EDT (00:06 UTC)
Expired
Mar 27, 2017, 8:30 PM EDT
In force
24 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clay County, KY, Jackson County, KY, Laurel County, KY, Pulaski County, KY, Rockcastle County, KY

The radar

The Jackson,KY radar (KJKL), 69 km from the middle of the area, began a volume at 00:09 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.

IssuedProductOfficeLasted
Mar 27, 3:24 PM EDTSevere Thunderstorm WatchSPC8 hr
Mar 27, 6:02 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.1 hours before the alert went out and 239 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 2017-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 63 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, Cncnati-Daytn, OH at 00:00Z on 2017-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
63 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
1020 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

643 
WUUS53 KJKL 280006
SVRJKL
KYC051-109-125-199-203-280030-
/O.NEW.KJKL.SV.W.0021.170328T0006Z-170328T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service JACKSON KY
806 PM EDT MON MAR 27 2017

The National Weather Service in JACKSON KY has issued a

* Severe Thunderstorm Warning for...
  Central Laurel County in south central Kentucky...
  Southern Jackson County in southeastern Kentucky...
  East central Pulaski County in south central Kentucky...
  Southeastern Rockcastle County in south central Kentucky...
  Northwestern Clay County in southeastern Kentucky...

* Until 830 PM EDT

* At 806 PM EDT, severe thunderstorms were located along a line
  extending from Collingsworth to Hazel Patch to near Billows, moving
  northeast at 55 mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  London, McKee, Carico, Donaro, Grace, Robinet, Pittsburg, Zekes
  Point, Shop Branch, Maulden, Fogertown, Mummie, Treadway, Tyner,
  Privett, Bradshaw, Horse Lick, Hurley, Settle Store and Mershons.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3710 8442 3719 8427 3739 8423 3744 8389
      3744 8384 3737 8381 3735 8379 3735 8377
      3728 8373 3711 8381
TIME...MOT...LOC 0006Z 234DEG 49KT 3747 8409 3725 8417 3713 8431 

HAIL...<.75IN
WIND...60MPH
 
$$

SHALLENBERGER
1 follow-up statement
045 
WWUS53 KJKL 280030
SVSJKL

Severe Weather Statement
National Weather Service JACKSON KY
830 PM EDT MON MAR 27 2017

KYC051-109-125-199-203-280039-
/O.EXP.KJKL.SV.W.0021.000000T0000Z-170328T0030Z/
Laurel KY-Jackson KY-Pulaski KY-Rockcastle KY-Clay KY-
830 PM EDT MON MAR 27 2017

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LAUREL...SOUTHERN
JACKSON...EAST CENTRAL PULASKI...SOUTHEASTERN ROCKCASTLE AND
NORTHWESTERN CLAY COUNTIES WILL EXPIRE AT 830 PM EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore the warning will be allowed to expire.  However heavy rain
is still possible with these thunderstorms.

A severe thunderstorm watch remains in effect until 1100 PM EDT for
south central and southeastern Kentucky.

LAT...LON 3710 8442 3719 8427 3739 8423 3744 8389
      3744 8384 3737 8381 3735 8379 3735 8377
      3728 8373 3711 8381
TIME...MOT...LOC 0029Z 234DEG 49KT 3764 8380 3742 8388 3730 8402 

$$

KAS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 8:13 PM EDTAreal Flood AdvisoryJKLBreathitt, Clay, Jackson, Lee, Owsley, Perry2 hr
Mar 27, 8:23 PM EDTSevere Thunderstorm WarningJKLBreathitt, Clay, Estill, Jackson, Lee, Owsley and 2 more52 min
Mar 27, 8:25 PM EDTSpecial Weather StatementJKLBath, Fleming, Menifee, Powell, Rowan35 min
Mar 27, 8:29 PM EDTSevere Thunderstorm WarningJKLBreathitt, Owsley, Perry46 min
Mar 27, 8:51 PM EDTSpecial Weather StatementJKLLetcher24 min
Mar 27, 8:58 PM EDTSpecial Weather StatementJKLMagoffin32 min
Mar 27, 9:11 PM EDTSpecial Weather StatementJKLMagoffin34 min
Mar 27, 9:38 PM EDTSpecial Weather StatementJKLFloyd37 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2017Every severe thunderstorm warning in 2017

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.