Alert archive / Kentucky / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 113, NWS Jackson, KY

April 27, 2011Laurel County, McCreary County, Whitley County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Apr 27, 2011, 9:24 AM EDT for Laurel County, McCreary County, Whitley County, Kentucky. It was in force for 51 min. 5 reports 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: Apr 27, 2011, 9:24 AM EDT (13:24 UTC)
Expired: Apr 27, 2011, 10:15 AM EDT
In force: 51 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Hail: 0.5 in
Wind: 70.0 mph

Counties Laurel County, KY, McCreary County, KY, Whitley County, KY

The radar

The Knoxville radar (KMRX), 118 km from the middle of the area, began a volume at 13:25 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
Apr 27, 9:26 AM EDT	TSTM WND DMG	9 W Whitley City, KY	TREE DOWN ON HIGHWAY 92 BETWEEN MILE MARKER 9 AND 10.
Apr 27, 9:34 AM EDT	TSTM WND DMG	3 S Pine Knot, KY	ROOF BLOWN OFF BARN. BOARD PUT THROUGH THE WINDOW OF A TRUCK. TOP SNAPPED OUT OF A 20 INCH DIAMETER TREE.
Apr 27, 9:36 AM EDT	TSTM WND DMG	3 Ene Pine Knot, KY	DAMAGE TO A MOBILE HOME AND SOME 3 TO 4 INCH DIAMETER TREE LIMBS DOWN ON HIGHWAY 92.
Apr 27, 9:40 AM EDT	TSTM WND DMG	Beulah Heights, KY	TREE DOWN ACROSS BEULAH HEIGHTS ROAD. TIME ESTIMATED OFF OF RADAR.
Apr 27, 9:50 AM EDT	TSTM WND DMG	2 E Cumberland Falls S., KY	TREE DOWN OVER HIGHWY 90 NEAR MILLS OLD RIDING STATION.

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
Apr 27, 8:34 AM EDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 1.4 hours before the alert went out and 210 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 714 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: -84 m²/s²
0-3 km storm-relative helicity: -38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

524 
WUUS53 KJKL 271324
SVRJKL
KYC125-147-235-271415-
/O.NEW.KJKL.SV.W.0113.110427T1324Z-110427T1415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON KY
924 AM EDT WED APR 27 2011

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN LAUREL COUNTY IN SOUTH CENTRAL KENTUCKY...
  MCCREARY COUNTY IN SOUTH CENTRAL KENTUCKY...
  NORTHWESTERN WHITLEY COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 1015 AM EDT

* AT 921 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN
  EXCESS OF 70 MPH.  THIS STORM WAS LOCATED 5 MILES EAST OF GREAT
  MEADOWS CAMPSITES...OR 9 MILES NORTHWEST OF ONEIDA...AND MOVING
  NORTHEAST AT 65 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHITLEY CITY...WILLIAMSBURG...CO-OPERATIVE...BLUE HERON...STRUNK...
  PINE KNOT...STEARNS...MARSHES SIDING...HOLLYHILL...WIBORG...BEULAH
  HEIGHTS...PARKERS LAKE...DUCKRUN...JELLICO CREEK...GREENWOOD...
  BOUNTY...HONEYBEE...BON...CUMBERLAND FALLS S.P. AND REDBIRD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

TO REPORT DAMAGING WINDS...LARGE HAIL OR FLOODING TO THE NATIONAL
WEATHER SERVICE...CALL TOLL FREE AT...1...8 7 7...6 3 3...6 7 7 2...
WHEN YOU CAN DO SO SAFELY.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 PM EDT WEDNESDAY
AFTERNOON FOR SOUTHEASTERN KENTUCKY.

LAT...LON 3660 8474 3662 8476 3686 8455 3696 8439
      3696 8437 3698 8436 3700 8432 3702 8432
      3711 8422 3681 8403 3659 8430
TIME...MOT...LOC 1324Z 221DEG 56KT 3664 8460
WIND...HAIL 70MPH <.50IN

$$

ABE

2 follow-up statements

329 
WWUS53 KJKL 271354
SVSJKL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
954 AM EDT WED APR 27 2011

KYC125-147-235-271415-
/O.CON.KJKL.SV.W.0113.000000T0000Z-110427T1415Z/
LAUREL KY-WHITLEY KY-MCCREARY KY-
954 AM EDT WED APR 27 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
MCCREARY...NORTHWESTERN WHITLEY AND SOUTHWESTERN LAUREL COUNTIES
UNTIL 1015 AM EDT...

AT 951 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR HOLLY BAY REC. AREA...OR 15
MILES SOUTHWEST OF LONDON...MOVING NORTHEAST AT 65 MPH.

LOCATIONS IMPACTED INCLUDE...
  KEAVY AND HIGHTOP.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER 
HOUR...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION 
MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR 
BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS 
WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3659 8430 3666 8437 3677 8445 3688 8450
      3696 8436 3698 8436 3700 8432 3702 8432
      3711 8422 3681 8403
TIME...MOT...LOC 1354Z 221DEG 56KT 3699 8421
WIND...HAIL 60MPH <.50IN

$$

GEOGERIAN

951 
WWUS53 KJKL 271411
SVSJKL

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
1011 AM EDT WED APR 27 2011

KYC125-147-235-271421-
/O.EXP.KJKL.SV.W.0113.000000T0000Z-110427T1415Z/
LAUREL KY-WHITLEY KY-MCCREARY KY-
1011 AM EDT WED APR 27 2011

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MCCREARY...
NORTHWESTERN WHITLEY AND SOUTHWESTERN LAUREL COUNTIES WILL EXPIRE AT
1015 AM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA. THE REMAINDER OF LAUREL COUNTY REMAINS UNDER A SEVERE 
THUNDERSTORM WARNING UNTIL 1045 AM EDT.

LAT...LON 3659 8430 3666 8437 3677 8445 3688 8450
      3696 8436 3698 8436 3700 8432 3702 8432
      3711 8422 3681 8403
TIME...MOT...LOC 1411Z 221DEG 56KT 3719 8399

$$

ABE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 8:27 AM EDT	Severe Thunderstorm Warning	JKL	Pulaski, Wayne	33 min
Apr 27, 8:36 AM EDT	Tornado Warning	JKL	Wayne	24 min
Apr 27, 8:53 AM EDT	Tornado Warning	JKL	Pulaski, Wayne	38 min
Apr 27, 9:16 AM EDT	Severe Thunderstorm Warning	JKL	Estill, Jackson, Laurel, Pulaski, Rockcastle	44 min
Apr 27, 10:02 AM EDT	Severe Thunderstorm Warning	JKL	Clay, Jackson, Laurel	43 min
Apr 27, 5:23 PM EDT	Severe Thunderstorm Warning	JKL	Knox, Laurel, McCreary, Whitley	37 min
Apr 27, 5:44 PM EDT	Tornado Warning	JKL	Bell, Knox, McCreary, Whitley	46 min
Apr 27, 6:37 PM EDT	Tornado Warning	JKL	Bell, Knox, McCreary, Whitley	38 min
Apr 27, 7:03 PM EDT	Flash Flood Warning	JKL	Bell, Knox, McCreary, Whitley	6 hr
Apr 27, 7:07 PM EDT	Tornado Warning	JKL	Bell, Harlan, Leslie	38 min
Apr 27, 7:22 PM EDT	Severe Thunderstorm Warning	JKL	McCreary, Pulaski, Wayne, Whitley	38 min
Apr 27, 7:29 PM EDT	Areal Flood Advisory	JKL	Bath, Clay, Estill, Fleming, Jackson, Knox and 13 more	6 hr
Apr 27, 7:42 PM EDT	Tornado Warning	JKL	Bell, Harlan, Leslie, Letcher, Perry	48 min
Apr 27, 7:51 PM EDT	Flash Flood Warning	JKL	Knox, Laurel, McCreary, Whitley	6 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2011 Every severe thunderstorm warning in 2011

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.