Somerset, Kentucky 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

489
FXUS63 KJKL 121130
AFDJKL

AREA FORECAST DISCUSSION
National Weather Service Jackson KY
730 AM EDT Thu Mar 12 2026

.KEY MESSAGES...

- After a sharp cooldown behind a cold front today, mild
  temperatures return for Friday into the weekend.

- Wind gusts of 30 to 40 mph are expected Friday, and this could
  combine with drying conditions to result in a threat of
  wildfires.

- Warm conditions return Sunday with thunderstorm chances
  returning in the afternoon and evening.

- A cold front passage Sunday night will bring chilly conditions
  to begin next week.

&&

.UPDATE...
Issued at 629 AM EDT THU MAR 12 2026

A few snowflakes are flying on the back edge of the solid band of
precipitation moving out of the area, with a few weak cold
advection bands developing just behind this. The forecast is
mainly on track, but did broaden the back end of the PoPs over
southeastern Kentucky this morning to reflect these trends. By
this afternoon sunny skies are expected everywhere.

&&

.SHORT TERM...(Today through Friday)
Issued at 350 AM EDT THU MAR 12 2026

An upper trough moving across the eastern US will cross eastern
Kentucky around midday today, with the forecast area residing on the
southern side of a highly energetic zonal pattern thereafter through
early Friday evening. A strong mid-level jet streak is poised to
cross the northern Ohio Valley Region during the day Friday.

At the surface, a strong cold front continues to move across the
Appalachians and away from our area, with surface high pressure
building in from the west today. However, a strong, compact surface
low will move east across the Great Lakes along the north side of
the aforementioned strong mid-level jet stream Friday, significantly
increasing the pressure gradient across the northern and central
Ohio Valley Region.

Northwesterly winds will gradually diminish through the day today,
though there may be a slight uptick as clearing skies and daytime
mixing commence around midday through the afternoon hours.
Nevertheless, temperatures will be much lower than what we have seen
recently, with upper 40s to lower 50s for highs.

Good radiational cooling conditions develop this evening, allowing
for lows to drop to near or below freezing in many sheltered
valleys, but the aforementioned increasing pressure gradient will
begin to increase winds through the pre-dawn hours, especially
outside of the sheltered valleys. Winds significantly increase
Friday morning, peaking late morning before gradually diminishing
through the afternoon. Widespread southwesterly wind gusts of 30 to
40 mph look probable, with many CAMS, including the HREF, suggesting
near 100 percent probabilities for reaching Wind Advisory criteria
of 40 mph or higher gusts for much of the CWA, especially for all
but far southeast Kentucky. However, NBM probabilities are much
lower, though still above 50 percent, toward the Morehead area, with
lower probabilities otherwise. While a Wind Advisory may be needed
tomorrow for parts of our north and/or northeast counties for
Friday, confidence is not quite high enough to issue such with this
morning`s forecast package.

Regardless of if a Wind Advisory is needed, breezy to windy
conditions are expected Friday, which when combined with a dry air
mass may bring elevated fire weather concerns to the area. Highs
will rebound into the 60s under thin mid- and high-level clouds from
the passing low pressure system to the north.

.LONG TERM...(Friday night through Wednesday)
Issued at 534 AM EDT THU MAR 12 2026

Earlier Friday, an upper level low will work through the Great Lakes
region and into the New England area. Friday evening, a trailing dry
cold front will move through Eastern Kentucky. Winds will veer from
southwesterly ahead of the front to northeasterly by Saturday
morning. Temperatures will cool into the mid 30s in valleys and upper
30s to low 40s along ridge tops.

High pressure briefly builds into the area for Saturday. Afternoon
dew points were adjusted down by blending the NBM using the 10th
percentile. This yields dew points in the upper 30s to low 40s
across the southwest, becoming drier, in the upper 20s across the
northeast. Northeasterly winds in the wake of the departing cold
front will lead to some dry air mixing downward ahead of an
approaching warm front from the southwest. Temperatures will range
from the lower 60s across the north, to upper 60s further south.

Elsewhere, across the Northern Rockies an upper level low is progged
to dig south and phase with another low in the Central Plains. A
warm front is expected to be positioned across the Ohio Valley,
north of the forecast area, by Sunday morning. Through Sunday, this
trough deepens over the Ozarks, with many models and ensembles are
in fairly good agreement of this trough having a slight negative
tilt. A LLJ will pass through the area, with 12Z LREF Grand Ensemble
showing a 80-85% chance of seeing wind gusts of at least 35 mph.
BUFKIT model soundings show momentum transfer of 30-33 kts (34-38
mph). As such, wind gusts were blended up with a 60/40 blend toward
the 90th percentile of the NBM. Winds could gust as high as 25-35
mph Sunday afternoon ahead of an approaching cold front. Stern
southerly winds will advect warmer air into the region, leading to
temperature climbing into the 70s across the area. Heading into the
overnight Sunday into Monday, widespread showers will occur ahead of
a cold frontal passage. Temperatures are expected to drop sharply
behind the front, likely going from lower 60s around midnight, to
the mid to upper 30s for most by Monday morning.

Monday, rain-snow showers will slowly taper off from southwest to
northeast as the system moves off to the northeast. Being on the
backside of the trough, CAA may lead to temperatures either
leveling out or falling slightly through the day. Highs in the low
40s to low 50s from west to east will likely occur near or just
after sunrise, before falling into the teens to low 20s Monday
night. Snow showers may lead to minor accumulations.

Tuesday, in the wake of the departing trough, cold-dry air continues
to work into the area. Temperatures "warm" into the mid to upper 30s
through the day. Dew points in the single digits will lead to RH`s
in the 20s. Ahead of an approaching shortwave from Alberta, lows
will range in the low to mid 20. As mentioned, a shortwave will ride
the high amplitude ridge-trough flow and bring a chance of rain and
snow to portions of Eastern Kentucky on Wednesday. Cold air remains
for one last day, with temperatures in the mid 40s to lower 50s and
lows in the 30s.

&&

.AVIATION...(For the 12Z TAFS through 12Z Friday morning)
ISSUED AT 730 AM EDT THU MAR 12 2026

Rain and snow will gradually exit the area through the remainder
of this morning, with the TAF period beginning with a mix of MVFR
and IFR conditions. Skies will improve/clear through the late
morning into midday period, with generally clear skies across the
area expected no later than ~16z.

North to northwest winds will remain gusty this morning, with
speeds diminishing somewhat during the late morning hours before
skies clear and mixing commences around 16z, which may result in
an uptick in winds and wind gusts through the late afternoon
before winds decouple around or shortly after sunset.

A low pressure system moving across the Great Lakes region Friday
will push a dry cold front toward the area late in the day. By the
end of the TAF period, generally after 09z, a low-level jet will
begin to move over the area, bringing gusty south to southwest
winds to exposed TAF sites and LLWS to more sheltered sites.

&&

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

&&

$$

UPDATE...CMC
SHORT TERM...CMC
LONG TERM...GINNICK
AVIATION...CMC