Alert archive / Kentucky / Special Weather Statements in 2018

Special Weather Statement, NWS Jackson, KY

July 5, 2018Wayne County, Kentucky

NWS Jackson, KY issued this special weather statement at Jul 5, 2018, 4:49 PM EDT for Wayne County, Kentucky. It was in force for 41 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
Jul 5, 2018, 4:49 PM EDT (20:49 UTC)
Expired
Jul 5, 2018, 5:30 PM EDT
In force
41 min
Issued by
NWS Jackson, KY

County Wayne County, KY

The radar

The Louisville radar (KLVX), 149 km from the middle of the area, began a volume at 20:51 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

Nashville Metro, TN (KBNA), launched 12:00Z, 8.8 hours before the alert went out and 168 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, Nashville Metro, TN at 12:00Z on 2018-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 347 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, Nashville Metro, TN at 12:00Z on 2018-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
347 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1409 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
105 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 Jackson, KY wrote its last area forecast discussion before this special weather statement went out at Jul 5, 3:49 PM EDT, 1 hour earlier.

Area forecast discussion, Jul 5, 3:49 PM EDT, 1 hour before
AREA FORECAST DISCUSSION
National Weather Service Jackson KY
349 PM EDT Thu Jul 5 2018

.SHORT TERM...(This evening through Friday night)
Issued at 349 PM EDT THU JUL 5 2018

The afternoon surface analysis shows a cold front and surface high
pressure slowly pushing southward into the Upper Midwest, with
weaker surface high pressure placed in the Eastern US. The
convection has slowly started increasing this afternoon amid an
unstable and moist environment. The best POPs so far this
afternoon have generally been around Lake Cumberland and across
the Bluegrass. These will be primarily mesoscale dominated
processes through the afternoon and evening and therefore kept
POPs in the slight to chance range through the period.

The aforementioned cold front will slowly progress southward
toward the region late tonight into Friday. This along with slight
height falls will be the focus for convection for Friday and did
generally keep the better POPs along and south of I-64. This is
the area that stands to see the best potential for instability to
build ahead of the lifting associated with the boundary. This
boundary will slide southward and bring much drier airmass to
round out the period, with PWATs dropping below 1 inch through the
afternoon and evening hours Friday.

.LONG TERM...(Saturday through Thursday)
Issued at 349 PM EDT THU JUL 5 2018

High pressure will build south for the weekend allowing for dry
and cooler conditions to be seen. The upper level ridge may break
down a bit by Sunday afternoon allowing for a few showers or
storms to develop in the Cumberland plateau into central Kentucky.
The 12z GFS is looking much more active next week, at least with
regards to afternoon convection. Thus, at least low end pops will
be introduced into each period from Sunday through Thursday. A
frontal boundary may drop in and stall over the region by mid
week, allowing for better chances of organized convection. While
temperatures will rebound back into the mid to upper 80s by
Sunday, they should generally remain around that level through
next week. This will keep the heat from becoming an issue again
next week.

&&

.AVIATION...(For the 12Z TAFS through 12Z Friday morning)
ISSUED AT 741 AM EDT THU JUL 5 2018

Fog will bring sub-VFR conditions early this morning in many
valleys and where significant rain occurred late Wednesday.
Isolated showers and thunderstorms will also bring sub-VFR
conditions to some locations this afternoon and tonight. Fog could
also bring restrictions in valleys again late tonight. Otherwise,
VFR conditions are forecast. Winds will be light (except near
thunderstorms).

&&

.JKL WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SHORT TERM...DJ
LONG TERM...KAS
AVIATION...HAL
Hazardous weather outlook, Jul 5, 3:51 PM EDT, 58 minutes before
Hazardous Weather Outlook
National Weather Service Jackson KY
351 PM EDT Thu Jul 5 2018

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-062300-
Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Rockcastle-
Jackson-Pulaski-Laurel-Wayne-McCreary-Whitley-Knox-Bell-Harlan-
Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee-Breathitt-Knott-
Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike-
Including the cities of Flemingsburg, Camargo, Jeffersonville,
Mount Sterling, Owingsville, Morehead, Irvine, Ravenna,
Clay City, Stanton, Frenchburg, Brodhead, Mount Vernon, McKee,
Annville, Burnside, Somerset, London, Monticello, Stearns,
Whitley City, Corbin, Williamsburg, Barbourville, Middlesboro,
Pineville, Cumberland, Harlan, Sandy Hook, West Liberty,
Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright,
Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard,
Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run,
Elkhorn City, Pikeville, and South Williamson
351 PM EDT Thu Jul 5 2018

This hazardous weather outlook is for portions of eastern Kentucky.

.DAY ONE...This Afternoon and Tonight.

Thunderstorms are possible though this evening. Some of the
stronger storms could produce gusty winds and torrential rain.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Thunderstorms are possible at times Friday into early Friday
evening and again from Saturday through Wednesday during the
afternoons.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

DJ/KAS

In the hours before

Special weather statement, Jul 5, 4:43 PM EDT, 6 minutes before
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Special weather statement, Jul 5, 4:49 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 8:16 PM EDTSpecial Weather StatementJKLMagoffin29 min
Jul 4, 8:42 PM EDTSpecial Weather StatementJKLMagoffin33 min
Jul 4, 8:44 PM EDTSevere Thunderstorm WarningJKLBreathitt, Magoffin, Morgan, Wolfe29 min
Jul 5, 4:43 PM EDTSpecial Weather StatementJKLElliott47 min
Jul 5, 5:19 PM EDTSevere Thunderstorm WarningJKLElliott, Johnson, Magoffin, Morgan26 min
Jul 5, 5:38 PM EDTSpecial Weather StatementJKLNicholas37 min
Jul 5, 5:43 PM EDTSpecial Weather StatementJKLJohnson32 min
Jul 5, 6:13 PM EDTSpecial Weather StatementJKLMontgomery32 min
Jul 5, 6:21 PM EDTAreal Flood AdvisoryJKLMcCreary114 min
Jul 5, 6:21 PM EDTSpecial Weather StatementJKLLetcher24 min
Jul 5, 6:43 PM EDTSpecial Weather StatementJKLPowell47 min
Jul 5, 6:45 PM EDTSpecial Weather StatementJKLLetcher30 min
Jul 5, 6:52 PM EDTSevere Thunderstorm WarningJKLMenifee, Montgomery, Powell38 min
Jul 5, 7:01 PM EDTAreal Flood AdvisoryJKLHarlan3 hr
Jul 5, 7:16 PM EDTSpecial Weather StatementJKLHarlan29 min
Jul 5, 7:23 PM EDTAreal Flood AdvisoryJKLHarlan112 min
Jul 5, 7:27 PM EDTSpecial Weather StatementJKLPowell, Wolfe33 min
Jul 5, 7:57 PM EDTSpecial Weather StatementJKLWolfe33 min

Nearby

Special Weather Statements in Kentucky, 2018Every special weather statement in 2018

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.