Somerset, Kentucky 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

520
FXUS63 KJKL 010545 AAA
AFDJKL

AREA FORECAST DISCUSSION...UPDATED
National Weather Service Jackson KY
145 AM EDT Mon Jun 1 2026

.KEY MESSAGES...

- Showers and storms remain possible in areas mainly south of the
  Hal Rogers Parkway/Highway 80 today.

- Temperatures will average within a few degrees of normal over
  the next week.

&&

.UPDATE...
Issued at 130 AM EDT MON JUN 1 2026

No significant changes were made to the forecast with mainly just
the inclusion of the latest obs and trends for the T/Td/Sky grids.
Did also include the current radar and CAMs guidance for some
small PoPs into dawn. These minor adjustments have been sent to
the NDFD and web servers along with a freshening of the HWO, SAFS,
and zones.

UPDATE Issued at 1200 AM EDT MON JUN 1 2026

Updates were made to hourly grids mainly to account for
observation, satellite, radar, and high resolution model trends.
This generally resulted in lower pops for much of the area outside
of the VA border into the day on Monday.

UPDATE Issued at 805 PM EDT SUN MAY 31 2026

Convection near the TN border has waned to a few passing sprinkles
fall from what is left. Several hours of dry weather should follow
though some convection may tend to redevelop overnight. Hourly
temperatures and pops were freshened up based on radar,
satellite, and observation trends.

&&

.SHORT TERM...(This evening through Monday night)
Issued at 342 PM EDT SUN MAY 31 2026

Eastern Kentucky finds itself on the eastern periphery of a 500-mb
weakening ridge in an overall larger omega block pattern. In the
Southeast, A stationary boundary has been sitting in the Tennessee
Valley. This boundary will lift back north later this afternoon and
evening, bringing shower and thunderstorm chances to southern parts
of the forecast area. Any thunderstorms that do form are not
expected to be severe in nature, though could produce locally heavy
rain, which could lead to minor flooding in poor drainage areas. At
12Z this morning, the BNA sounding  measured PWAT of 1.56 inches. As
of 18Z this afternoon, dew points in the counties bordering Tennessee
range from the mid to upper 60s. The Weather Prediction Center has
highlighted an area extending from Somerset east to Corbin,
Barbourville, to Pineville and areas south, in a marginal risk
(level 1 of 4) for Excessive Rainfall through 12Z Monday morning. At
18Z temperatures are in the upper 70s to low 80s across Eastern
Kentucky, and are expected to top out in the lower 80s under a few
more hours of peak heating. Later tonight, temperatures are expected
to cool into the mid to upper 50s for most, and to the lower 60s
across those southern most counties. Some along with some isolated
to scattered shower and storm chances, some patchy fog may also
develop. However, with models such as the NAM and the RAP showing
elevated winds towards morning, the decision was made to keep fog to
the sheltered valley locations.

Monday, models continue to depict an upper level low (the eastern
low in the omega pattern), retrograding a bit southwest towards
Kentucky. This will lead to falling heights across the area, and a
embedded shortwave in the trough approaching from the northeast. The
day will start with a mix of sun and clouds before shower and storm
chances peak in the afternoon hours Monday. Most shower activity
should stay south of the Mountain Parkway, with the greatest chances
further south across the Cumberland River Basin. Temperatures warm
into the upper 70s to low 80s across the area under light northerly
winds. Towards the evening the trough digs further into the area
effectively pushing the stationary front from the Southeast, further
south. This leads to some clearing skies Monday evening. With light
northeasterly winds, and clearing skies, valley locations are
expected to decouple heading into the evening and overnight hours.
Low temperatures may range from the upper 40s in the sheltered
hollows and valleys, to the mid to upper 50s along ridge tops.
Patchy areas of fog may develop, mainly in mainstem river valleys,
though some could also form outside the valleys.

.LONG TERM...(Tuesday through Sunday)
Issued at 342 PM EDT SUN MAY 31 2026

Tuesday, as patchy fog mixes out, high pressure over the Upper
Midwest strengthens as the trough axis from the upper low in the
Northeast continues to drop heights across the area. Slightly cooler
conditions are expected ranging from the mid to upper 70s.
Conditions will generally be dry with mostly sunny skies across the
area except the Big Sandy, where the retrograding low could produce
isolated showers and thunderstorms in the far east during the
afternoon. As high pressure settles southeast in to the area out of
the northwest, height rises will occur, leading to clear skies,
calm winds and dry weather starting Tuesday night. Valleys could
decouple heading into the evening leading to valley temperatures
dropping into the upper 40s; while ridge tops remain elevated in the
low to mid 50s. Patchy fog may develop, mostly in river valleys, but
not necessarily confined to them.

High pressure continues to build into the region Wednesday through
Friday. Through these days, dry weather can be expected, under light
winds and mostly sunny skies. With height rises, temperatures will
warm through Friday. Upper 70s on Wednesday will warm into the low
to mid 80s by Friday. Lows in the evening will also warm, from the
low to mid 50s Wednesday night to the upper 50s to low 60s both
Thursday and Friday night.

An upper level low will traverse the Northern Plains and Southern
Canada starting Tuesday afternoon. By late Thursday this upper low
will be over the Great Lakes, breaking the ridge of high pressure
down. Gulf moisture will creep north around an area of high pressure
through the lower Mississippi Valley, into the Mid-Mississippi
Valley by Saturday afternoon. This will lead to showers and
thunderstorm chances across much of the area Saturday afternoon, and
again on Sunday. Temperatures look to range from the low to mid 80s.

&&

.AVIATION...(For the 06Z TAFS through 06Z Monday night)
ISSUED AT 145 AM EDT MON JUN 1 2026

An approaching wave aloft and a boundary lingering across the
region could result in isolated to scattered showers early this
morning generally for locations south of a KJKL to KLOZ line -
with some sprinkles possible for the rest of the area. This
convective potential continues after dawn with a thunderstorm
possible into early afternoon in the far southwest. Otherwise,
areas of fog will develop in the valleys generally south of the
Mtn Parkway through the morning commute, though this is not
expected to affect any of the TAF sites. Winds will generally
remain less than 10 kts through the period, outside of any
thunderstorms.

&&

.JKL WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

UPDATE...GREIF
SHORT TERM...GINNICK
LONG TERM...GINNICK
AVIATION...JP/GREIF