Somerset, Kentucky 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

422
FXUS63 KJKL 201450
AFDJKL

AREA FORECAST DISCUSSION
National Weather Service Jackson KY
1050 AM EDT Mon Apr 20 2026

.KEY MESSAGES...

- Frost or light freeze conditions are expected across most of
  eastern Kentucky late tonight into early Tuesday morning.

- Below normal temperature will last through early Tuesday,
  followed by warmer weather to last into the weekend.

- The next expectation of area wide rain is not until the weekend.

&&

.UPDATE...
Issued at 1050 AM EDT MON APR 20 2026

Secondary cold front is settling across eastern Kentucky late this
morning with a period of mid-level cloud cover and even a few
sprinkles over far eastern counties. The lingering sprinkles
should depart into southwest Virginia within the next 30 minutes.
Thereafter, remaining cloud cover should shift southeast and
clear the JKL CWA by 2 PM. In the wake of the front, anticipate a
dry northwesterly breeze at 5 to 10 mph through the afternoon.
Afternoon high temperatures are forecast to range from mid 50s
northern foothills to mid 60s in deeper valleys near the KY-TN
border while dew points drop back into the 10s and 20s.

&&

.SHORT TERM...(Today through Tuesday)
Issued at 745 AM EDT MON APR 20 2026

An impulse is dropping into the base of a longwave trough
departing to our east this morning. An associated weak cold front
is dropping south through the JKL forecast area, accompanied by
clouds. There are some weak returns on radar, but it looks like
it`s virga. Have included only a mention of sprinkles in the
forecast for this morning. The clouds and any sprinkles should be
on the decline as they exit to the south and southeast today.

Skies will be clear tonight as surface high pressure passes by to
our northeast. Low level flow will turn out of the south tonight
and begin warm air advection. However, most locations should
decouple this evening, which will allow for cold temperatures.
Will expect valleys to bottom out around 30 east of I-75 by dawn
on Tuesday, and a Frost Advisory was issued for those counties.

Warm air advection tonight will result in a steep inversion by
Tuesday morning. With nothing more than high/thin clouds expected
during the day Tuesday, insolation should result in a significant
warm-up as we mix upward through the inversion.

.LONG TERM...(Tuesday night through Sunday)
Issued at 745 AM EDT MON APR 20 2026

The long term period will start with WNW flow aloft while ridging
approaches from the west. A cold front will be struggling to make
southward progress through IL/IN/OH as it loses momentum ahead of
the approaching ridge. Moisture advection will occur ahead of the
front, and will probably allow for shower/thunderstorm development
near the front. Won`t rule out some of these making it into our
northeast counties, but they are more likely closer to the front.
The front doesn`t make it here and mild and dry weather should
last from Wednesday night into Friday as the upper ridge arrives.

The ridge aloft is expected to weaken as a couple of shortwaves
coming out of a western CONUS trough ripple through it. This
should finally allow for some rain during the weekend, but the
details of how it unfolds are likely to change.

&&

.AVIATION...(For the 12Z TAFS through 12Z Tuesday morning)
ISSUED AT 745 AM EDT MON APR 20 2026

VFR conditions are forecast through the period. A cloud deck in
the 5-9K ft AGL range is currently dropping south through the
area. A few sprinkles may occur beneath the clouds. Skies will
clear as the clouds depart to the south and dry up during the day.

&&

.JKL WATCHES/WARNINGS/ADVISORIES...
Frost Advisory from 11 PM this evening to 9 AM EDT Tuesday for
KYZ044-050>052-058>060-069-086>088-104-106>120.

&&

$$

UPDATE...GEERTSON
SHORT TERM...HAL
LONG TERM...HAL
AVIATION...HAL