Severe Thunderstorm Warning 85, NWS Jackson, KY

AREA FORECAST DISCUSSION
National Weather Service Jackson KY
427 PM EDT Thu Apr 10 2025

.KEY MESSAGES...

- A series of cold fronts will bring a potential of showers and
  thunderstorms, with precipitation from the first front
  affecting the area at times mainly today into Friday, and a
  possibility of more rain with a second front Monday and Monday
  night.

- Strong winds and hail can't be ruled out with the most intense
  storms late today into tonight.

- Temperature swings can be expected over the next week due to the
  quick moving nature of significant weather systems.

&&

.UPDATE...
Issued at 427 PM EDT THU APR 10 2025

Issued a quick update to raise PoPs area-wide in response to
radar trends over the last couple of hours. This trend continues
into the evening before blending back in to the previous PoPs.

&&

.SHORT TERM...(This evening through Friday night)
Issued at 308 PM EDT THU APR 10 2025

Current surface analysis is rather active as a surface low is
working out of the Central Plains toward the Eastern Seaboard. The
occluding low is currently centered over southern Iowa; however, the
quasi-stationary/warm front is extended eastward toward the Ohio
Valley. The showers this morning were associated with the warm front
lifting through the CWA. Behind the exiting warm front, the CWA has
shifted into the regime of the warm sector which will bring the
daytime highs into the low to mid-60s. Lastly, the cold front is
draped southwestward into Missouri and back toward the Colorado High
Plains.

The upper-level trough responsible for the surface low is forecast
to continue to dive southeast with the area situated under the left
exit region of the upper-level jet. As that upper-level jet moves
over the area overnight into early Friday morning the surface low
will dive southeast into the region with the trailing cold front.
The cold front is expected to stay to the south of the the CWA but
the surface low itself will cross into the CWA and as that occurs,
increasing showers and thunderstorms are expected overnight tonight
into Friday morning. The SPC has a Marginal Risk for the entire
forecast area but in the early afternoon update, the SPC introduced
a Slight Risk to portions of Wayne and McCreary Counties. Isolated
strong to severe storms will be possible as the area has largely
been able to clear out after this morning's shower activity but due
to the timing of the low moving through the area, the severe threat
should be limited. As the upper-level trough pivots eastward and the
forcing moves with it, the surface low will eject out of the area
slowly Friday morning/afternoon.

Surface high pressure will build into the region throughout the day
Friday but low-level moisture will keep cloud cover over the area.
The immense cloud cover and CAA, behind the exiting system, will
favor cooler temperatures on Friday; therefore, highs will only
climb into the low to mid-50s. Continued clearing skies are expected
for Friday night going into Saturday. However, the timing of the
clouds exiting and peak cooling can and will present an issue for
the development of frost overnight Friday into Saturday morning.
Current guidance and forecast grids represent the area mostly under
cloud cover, however, areas along and west of the I-75 corridor are
forecast to be cloud-free or have limited clouds and therefore,
frost development will be possible into Saturday morning. Otherwise,
after the system exits late Friday morning, surface high pressure
will build into the region and remain in place through the remainder
of the period.

.LONG TERM...(Saturday through Thursday)
Issued at 315 PM EDT THU APR 10 2025

A significant upper level trough will be over the far eastern CONUS
at the start of the long term period, with its axis to our east
along or near the Eastern Seaboard. Most precip should have also
advanced to our east with the trough. However, we should still be in
a cool, upslope low level flow will be diminishing Saturday morning.
This may keep low clouds and a few sprinkles lingering in our far
eastern counties. Surface high pressure building in from the west as
the upper trough shifts further east should bring dry weather area
wide by late Saturday.

The surface high is expected to pass over on Saturday night with
light winds. Decreasing clouds with the cool and dry air mass in
place will probably result in frost once again for much of the area
by dawn on Sunday. The eastward departure of the surface high on
Sunday combined with upper level ridging building in from the west
will result in a sizable daytime warm-up.

A progressive pattern will continue, and the next upper level trough
is forecast to deepen as it moves eastward from the northern and
central plains on Sunday night to the Great Lakes Monday night. An
associated surface low will send a cold front southeast toward our
area on Monday, and then passing through on Monday night. Moisture
return will be cut short by the fast moving system, but the system
itself may be strong enough to overcome the limited moisture and
bring showers/thunderstorms. The current forecast POP peaks in the
chance category Monday night.

Another chilly air mass by mid-April standards arrives behind the
system's cold front for midweek, with a potential for more frost by
dawn on Wednesday, and again on Thursday, for some places.

&&

.AVIATION...(For the 18Z TAFS through 18Z Friday afternoon)
ISSUED AT 143 PM EDT THU APR 10 2025

VFR conditions are prevailing across all TAF sites minus KSYM
(MVFR due to cumulus deck) and KSJS (where remaining low clouds
exist from this morning's rain) at this TAF issuance. Terminals
will remain VFR but little improvement to KSYM or KSJS is expected
as a surface low is forecast to move into the region. As
increasing and lowering clouds move into the area, terminals will
fall into MVFR after 06Z/Friday. Showers and storms are expected
to move into the region shortly after and will persist through the
remainder of the period. Terminals are forecast to fall into
IFR/LIFR toward 12Z but as the system begins to move off to the
east, gradual improvement is expected through the rest of the TAF
window. Lastly, light and variable winds are expected through the
period.

&&

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

UPDATE...CMC
SHORT TERM...VORST
LONG TERM...HAL/CMC
AVIATION...VORST

Hazardous Weather Outlook
National Weather Service Jackson KY
310 PM EDT Thu Apr 10 2025

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-111200-
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-
310 PM EDT Thu Apr 10 2025

This Hazardous Weather Outlook is for a portion of eastern Kentucky.

.DAY ONE...Tonight.

Thunderstorms will be possible tonight. Some storms could produce
strong to damaging winds and hail.

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

Thunderstorms are possible Monday evening.

Frost development is possible Friday and Saturday nights, and then
again Tuesday and Wednesday nights.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

VORST/CMC

Special Weather Statement
National Weather Service JACKSON KY
718 PM EDT Thu Apr 10 2025

KYZ113-115-117-118-110000-
Perry KY-Knott KY-Letcher KY-Leslie KY-
718 PM EDT Thu Apr 10 2025

...A STRONG THUNDERSTORM WILL IMPACT NORTHERN LESLIE...LETCHER...
SOUTHERN PERRY AND SOUTHWESTERN KNOTT COUNTIES THROUGH 800 PM EDT...

At 717 PM EDT, Doppler radar was tracking a strong thunderstorm over
Thousandsticks, or near Hyden, moving east at 20 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Elic, Cody, Van, Carr Creek, Letcher, Colly, Premium, Bath, Sergent,
Hyden, Redfox, Whitesburg, Avawam, Yeaddiss, Whitco, Southdown, Hot
Spot, Wiscoal, Daisy, and Wendover.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3711 8352 3720 8351 3729 8351 3726 8272
      3725 8270 3724 8270 3723 8269 3723 8266
      3701 8280
TIME...MOT...LOC 2317Z 273DEG 18KT 3720 8343

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

GREIF

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>