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000
FXUS61 KILN 191959
AFDILN

AREA FORECAST DISCUSSION
National Weather Service Wilmington OH
359 PM EDT Fri Apr 19 2024

.SYNOPSIS...
High pressure will build into the area through the weekend and
persist into early next week. Temperatures will be below normal
over the weekend and then start to moderate on Monday.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
Low clouds south and east of I-71 will continue to clear through
the afternoon into the early evening. A fast-moving disturbance
is spreading mid level clouds into the region. There are some
echoes associated with this, so even with rather dry low levels,
cannot rule out a few sprinkles. This will pass this evening
with clearing after midnight. A much cooler night with lows in
the upper 30s to lower 40s.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/...
High pressure will continue to slowly build into the area.
Gradient on the front edge of this ridge will allow for winds to
pick up again during the day but diminish again at night. There
will be some diurnal cumulus later in the day with some mid and
high clouds overnight.

Highs will be in the 50s, with a few lower 60s in far southern
counties. Lows will fall into the 30s areawide. There is the
potential for some areas in central Ohio outside of the
Columbus metro to fall to freezing. Frost is a bit of a question
with some clouds and some wind persisting as well as fairly
large dewpoint depressions. But have continued mention patchy
frost.

&&

.LONG TERM /SUNDAY THROUGH FRIDAY/...
Broad area of strong high pressure resides in the Central Plains on
Sunday, with a central pressure of around 1030mb. The influence of
this surface high stretches across the Midwest region towards the
Atlantic coast. Bufkit soundings show persistent northwesterly flow
with saturation developing around 5000ft AGL on Sunday, which will
lead to reasonable cloud coverage across our CWA to start the day.
This moisture gradually erodes from NW to SE through the day. The
combination of northwesterly flow and ample cloud coverage will keep
daytime highs in the mid to upper 50s for most - about 10 degrees
below climatological normals. Given favorable radiative cooling
conditions Sunday night, have another mention of frost in the grids.

High pressure influence holds through Monday and through at least
the start of the day Tuesday. As it shifts eastward, return flow on
the back side of the high will provide slightly warmer temperatures
each day. However, a shortwave H5 trough and associated surface cold
front will slide through the Ohio Valley Tuesday night. This will
increase rain coverage through the overnight hours and leave behind
seasonably cooler temperatures once again for Wednesday and
Thursday.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
VFR will prevail with just mid to high clouds. Northwest winds
10 to 15 kt will diminish towards 00Z and back to more westerly.
Winds will increase again late in the period.

OUTLOOK...Wind gusts at or above 25 kt possible Tuesday.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.

&&

$$
SYNOPSIS...
NEAR TERM...
SHORT TERM...
LONG TERM...Clark
AVIATION...