Somerset, Kentucky 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

665
FXUS63 KJKL 070829
AFDJKL

AREA FORECAST DISCUSSION
National Weather Service Jackson KY
329 AM EST Sat Mar 7 2026

.KEY MESSAGES...

- A cold front will cross through the area today and tonight;
  bringing showers and thunderstorms. Strong to severe storms are
  possible with damaging winds being the primary threat.

- Unseasonably warm weather will last through today, but above
  normal temperatures to varying extent will also persist through
  the middle of next week.

- Showers and thunderstorms are also expected around the middle of
  next week.

&&

.SHORT TERM...(Today through Sunday)
Issued at 330 AM EST SAT MAR 7 2026

Latest surface analysis reveals a series of mesoscale low pressure
centers migrating along a baroclinic zone with upper-level trough
support. The most robust of these features is a 1001 mb low tracking
east-northeast from Iowa into western Wisconsin. A cold front
extends southwestward from the cyclone center toward the Big Bend of
Texas. Simultaneously, a warm front is draped west to east from the
center across Wisconsin, Michigan, southern Ontario, and into
eastern New York. In addition to these low pressure centers, a 1028
mb high centered near Bermuda exerts a broad influence over much of
the eastern CONUS. Locally, the area remains under the influence of
the Bermuda high while positioned within the warm sector behind the
warm front advancing across the Great Lakes. Due to the positioning
between these synoptic features, mostly clear skies persist across
the region with mild temperatures ranging from the lower 50s to mid
70s.

Through the remainder of the early morning and throughout the day,
surface high pressure will continue to dominate. However, as the
Iowa-Wisconsin surface low tracks eastward, a strong cold front will
approach the region. Ahead of the front, the downward mixing of the
LLJ will promote breezy conditions starting later this morning and
continuing through the afternoon. Surface gusts of 25 to 30 mph are
possible. The primary forecast challenge remains the uncertainty
surrounding organized convection. Two distinct scenarios are
currently being analyzed and the solutions are quite the opposite of
each other. In the first case, a dry morning with clear skies would
facilitate diurnal destabilization by the early afternoon.
Deterministic forecast soundings supporting this clearing indicate
MUCAPE values near 1500 J/kg, effective bulk shear around 30 to 35
knots, surface dew points in the upper 50s to lower 60s. While low-
level and mid-level lapse rates are expected to steepen alongside
increasing ESRH. However, the limiting factor is the strongest LLJ
forcing remains displaced to the northeast and this displacement
separates the strongest kinematics from the peak thermodynamic
environment, potentially limiting overall severe potential.

Conversely, a second scenario involving pre-frontal showers and
persistent cloud cover would significantly stabilize the boundary
layer, effectively mitigating the severe weather threat. High-
resolution CAMs continue to trend toward this more stable solution,
showing extensive cloud debris well ahead of the front which could
greatly inhibit surface heating and destabilization. Regardless,
this remains a strong cold front, and a strong to severe storm
cannot be ruled out this afternoon as frontal forcing may overcome
marginal near-storm environmental factors. The SPC mentions this
stable solution in the 0600Z discussion but maintains a Slight Risk
for the northeastern Commonwealth and a Marginal Risk elsewhere.
Damaging wind gusts remain the primary hazard, with an isolated
tornado threat in the far northern portions of the CWA. Attention
should be paid to future outlooks for possible expansion or
contraction of the Slight Risk depending on which solution pans out.
Regardless of convective evolution, the cold front is expected to
cross the region today, bringing widespread showers and
thunderstorms through the end of the period.

The forecast period will be characterized by the approaching cold
front that will bring the threat of strong to severe storms and
continued anomalous temperatures through Saturday afternoon. This
slow frontal passage will result in showers and isolated
thunderstorms continuing through Saturday night and lingering for
much of Sunday. Post-frontal temperatures will be approximately 10
to 15 degrees cooler than the highs experienced on Saturday.
Lingering showers and storms will be possible on Sunday before
surface high pressure builds into the region for the end of the
period.

.LONG TERM...(Sunday night through Friday)
Issued at 205 AM EST SAT MAR 7 2026

The period starts Sunday evening with a zonal mid-level pattern with
a decaying front just south of the area in the Tennessee Valley.
With radiational cooling conditions looking promising, ridge-valley
splits were introduced for the Sunday night period, along with a
reduction in dew points by several degrees from the NBM.

A warm front begins to lift north toward the area Monday into Monday
night, slowly introducing clouds and rain chances from the south.
However, the bulk of the guidance suggests most of the area will
remain under less than full cloud cover along with weak warm
advection, which is again a good setup for at least some ridge-
valley splits in temperatures, especially in the evening before
clouds and shower chances increase from the south.

PoPs continue to increase into Tuesday as the area becomes
entrenched within a robust warm sector to the south of a
warm/stationary front over the southern Great Lakes Region and an
upper low and cold front ejecting from northwestern Mexico into the
southern CONUS. A potentially strong cold front then moves east
through the area Wednesday as a digging upper trough absorbs the
southern stream disturbance or phases with it over the Eastern US.
While the progressive nature of this system precludes any widespread
excessive rainfall threat from heavy rain, at least at this time,
the strong dynamics (forcing) and wind shear would suggest the
potential for strong to severe storms potentially should sufficient
instability is present as the cold front passes.

Regardless of how this evolves, the models all suggest a cooler air
mass behind the cold front within broad cyclonically-curved zonal
flow for Thursday into Friday, with the low potential for some light
snow showers in the north for those solutions favoring a deeper
phasing system over the Eastern US Thursday and/or Thursday night.

The manual edits in the long-term period were to introduce ridge-
valley splits for both Sunday night and to a lesser degree Monday
night, and to lower dew point temperatures from Sunday night through
Monday night.

&&

.AVIATION...(For the 06Z TAFS through 06Z Sunday night)
ISSUED AT 1155 PM EST FRI MAR 6 2026

VFR conditions will hold through the majority of the aviation
forecast period, with pre-frontal showers/thunderstorms likely
holding off until after 18Z on Saturday. Some MVRF to IFR
conditions will be possible with this line of showers and storms.
After a night of light winds, they will increase out of the
southwest on Saturday, with gusts of up to 25 kts expected in most
places that afternoon and into the start of the evening. Prior to
that, some LLWS - from the southwest at up to 40 kts - will be
possible for a time pre-dawn.

&&

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

&&

$$

SHORT TERM...VORST
LONG TERM...CMC
AVIATION...GREIF