Alert archive / Kentucky / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 66, NWS Jackson, KY

July 10, 2013Bath County, Menifee County, Montgomery County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Jul 10, 2013, 4:50 PM EDT for Bath County, Menifee County, Montgomery 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 counties it named.

The facts

Issued
Jul 10, 2013, 4:50 PM EDT (20:50 UTC)
Expired
Jul 10, 2013, 5:30 PM EDT
In force
40 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Bath County, KY, Menifee County, KY, Montgomery County, KY

The radar

The Jackson,KY radar (KJKL), 63 km from the middle of the area, began a volume at 20:52 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
Jul 10, 3:15 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.8 hours before the alert went out and 155 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 12:00Z on 2013-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1493 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, Cncnati-Daytn, OH at 12:00Z on 2013-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
1493 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1009 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Jackson, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 10, 3:34 PM EDT, 1 hour 16 minutes earlier.

Area forecast discussion, Jul 10, 3:34 PM EDT, 1 hour 16 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSON KY
334 PM EDT WED JUL 10 2013

.SHORT TERM...(THIS EVENING THROUGH THURSDAY NIGHT)
ISSUED AT 304 PM EDT WED JUL 10 2013

WILL ADD PIKE...LETCHER AND HARLAN COUNTY TO FLASH FLOOD WATCH.
WITH CONVECTION IN THESE AREAS ALREADY OCCURRING TODAY...THEY WILL BE
PRIMED FOR POTENTIAL FLASH FLOODING WITH ADDITIONAL ACTIVITY THIS
EVENING AND OVERNIGHT. COLD FRONT CURRENTLY IN NORTHWEST INDIANA WILL
BE ONLY SLOWLY PRESSING SOUTHEAST OVERNIGHT AND NOT CLEARING
SOUTHEAST KY UNTIL THURSDAY AFTERNOON. LATEST MODEL GUIDANCE AND
ESPECIALLY CURRENT RADAR TRENDS POINTING TOWARDS MULTIPLE ROUNDS OF
SHOWERS AND THUNDERSTORMS FROM LATE THIS AFTERNOON INTO TONIGHT.
PRECIPITABLE WATER AROUND 1.8 THIS AFTERNOON AND WILL NOT SEE MUCH
DECREASE UNTIL AFTER FRONTAL PASSAGE ON THURSDAY...AND THUNDERSTORMS
WILL CONTINUE TO BE CAPABLE OF PRODUCING VERY HEAVY RAIN.
CONSIDERABLE DESTABILIZATION HAS OCCURRED THIS AFTERNOON AND SEVERE
THREAT ALSO INCREASING...WITH SEVERE REPORTS ALREADY OCCURRING IN
CENTRAL KY. HRRR IS POINTING TOWARDS ACTIVITY OVER CENTRAL KY MERGING
INTO A BOWING LINE WHICH WOULD INCREASE SEVERE THREAT OVER SE KY
EARLY THIS EVENING.

.LONG TERM...(FRIDAY THROUGH WEDNESDAY)
ISSUED AT 334 PM EDT WED JUL 10 2013

THERE IS DECENT AGREEMENT WITH THE VARIOUS MODELS HOWEVER THERE IS
SOME CONCERN WITH THE RESIDUAL UPPER TROUGH THAT DOES NOT WANT TO GO
AWAY. THE MODELS ARE SHOWING THE UPPER TROUGH INITIALLY MOVING TO
THE EAST. THIS WILL BRING SOME DRIER AND COOLER AIR TO THE AREA FOR
A WHILE...BUT THEN THE MODELS SHOW THE REMNANTS OF THE UPPER LOW OVER
OHIO ON SUNDAY. THE LOW THEN MEANDERS SOUTH OVER TIME. WITH ALL THE
SOLUTIONS...ALL THE FRONTS WILL STAY NORTH OF THE AREA AND EASTERN
KENTUCKY WILL JUST BE GENERAL AIR MASS CONVECTIVE ACTIVITY AND WILL
BE FAIRLY WARM AND HUMID. THE CONFIDENCE TENDS TO GO DOWN AFTER
SUNDAY FOR THE REST OF THE PERIOD BECAUSE IT WILL BE SO HARD TO TELL
WHERE THE AREAS OF ORGANIZED CONVECTION WILL BE. IN GENERAL WENT WITH
A MODEL BLEND...HOWEVER DID AN EXTRA NUDGE TOWARD THE ECMWF. FOR
TEMPERATURES...WENT A BIT COOLER THAN THE MODEL BLEND FOR THE SUNDAY
THROUGH WEDNESDAY TIME FRAME STAYING CLOSER TO THE ECMWF RAW OUTPUT.

&&

.AVIATION...(FOR THE 18Z TAFS THROUGH 18Z THURSDAY AFTERNOON)
ISSUED AT 131 PM EDT WED JUL 10 2013

COLD FRONT CURRENTLY OVER FAR NORTHWEST INDIANA WILL SLOWLY PRESS
SOUTHEAST OVER THE NEXT 24 HOURS...CLEARING SOUTHEAST KY THURSDAY
AFTERNOON. NUMEROUS SHOWERS AND THUNDERSTORMS WILL OCCUR AHEAD OF THE
COLD FRONT...WITH ALL TAF SITES EXPECTED TO BE AFFECTED LATE THIS
AFTERNOON AND INTO THE OVERNIGHT PERIOD. OUTSIDE OF THUNDERSTORMS
MOST AREAS WILL SEE VFR CONDITIONS THIS AFTERNOON...BUT AFTER MORE
WIDESPREAD PRECIPITATION MOVES IN LATER DO EXPECT CONDITIONS TO
DETERIORATE TONIGHT TO MVFR TO IFR. CONDITIONS SHOULD IMPROVE BACK TO
VFR BEFORE 18Z ON THURSDAY.

&&

.JKL WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH THROUGH LATE TONIGHT FOR KYZ044-050>052-
058>060-068-069-079-080-083>088-104-106>120.

&&

SHORT TERM...SBH
LONG TERM...JJ
AVIATION...SBH
Hazardous weather outlook, Jul 10, 4:13 PM EDT, 37 minutes before
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In the hours before

Special weather statement, Jul 10, 3:28 PM EDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
328 PM EDT WED JUL 10 2013

KYZ113-115-117-118-102000-
KNOTT-LESLIE-LETCHER-PERRY-
328 PM EDT WED JUL 10 2013

...A STRONG THUNDERSTORM TO AFFECT THE FOLLOWING COUNTIES THROUGH 400
PM EDT WEDNESDAY AFTERNOON...

   SOUTHWESTERN KNOTT...
   EAST CENTRAL LESLIE...
   WEST CENTRAL LETCHER AND
   EASTERN PERRY.

AT 328 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR FREW...OR 6
MILES EAST OF HYDEN...MOVING NORTHEAST AT 30 MPH.

RESIDENTS SHOULD EXPECT HEAVY RAIN...WITH RAINFALL RATES OF UP TO ONE
INCH PER HOUR...GUSTY WINDS OF 30 TO 40 MPH...FREQUENT LIGHTNING AND
SMALL HAIL IN THESE AREAS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR EASTERN KENTUCKY.

KAS
Special weather statement, Jul 10, 4:14 PM EDT, 36 minutes before
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Special weather statement, Jul 10, 4:14 PM EDT, 36 minutes before
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Special weather statement, Jul 10, 4:17 PM EDT, 33 minutes before
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Special weather statement, Jul 10, 4:29 PM EDT, 21 minutes before
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Special weather statement, Jul 10, 4:46 PM EDT, 4 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 11:32 AM EDTFlash Flood WatchJKLBath, Bell, Breathitt, Clay, Elliott, Estill and 27 more8 hr
Jul 10, 2:08 PM EDTAreal Flood AdvisoryJKLBell3 hr
Jul 10, 2:16 PM EDTSevere Thunderstorm WarningJKLKnott, Letcher44 min
Jul 10, 4:28 PM EDTAreal Flood AdvisoryJKLMcCreary, Pulaski, Wayne3 hr
Jul 10, 4:51 PM EDTAreal Flood AdvisoryJKLEstill, Jackson, Rockcastle3 hr
Jul 10, 4:54 PM EDTAreal Flood AdvisoryJKLBath, Fleming, Menifee, Montgomery, Powell3 hr
Jul 10, 4:59 PM EDTAreal Flood AdvisoryJKLLaurel, Whitley4 hr
Jul 10, 5:20 PM EDTSevere Thunderstorm WarningJKLBreathitt, Lee, Magoffin, Menifee, Morgan, Powell and 1 more25 min
Jul 10, 5:37 PM EDTAreal Flood AdvisoryJKLClay, Knox3 hr
Jul 10, 5:41 PM EDTAreal Flood AdvisoryJKLBath, Elliott, Morgan, Rowan2 hr
Jul 10, 6:40 PM EDTAreal Flood AdvisoryJKLBell, Harlan, Leslie, Letcher, Perry2 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2013Every severe thunderstorm warning in 2013

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.