-- Discussion containing changed information from previous version are highlighted. --
998
FXUS61 KCLE 301836
AFDCLE

Area Forecast Discussion
National Weather Service Cleveland OH
236 PM EDT Tue Apr 30 2024

.SYNOPSIS...
A cold front will continue east across the local area today.
High pressure will build in behind this front for tonight into
Wednesday. A trough will pass through the region on Wednesday
night. A warm front will lift across the area on Thursday. A
cold front will move through Friday into Saturday.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
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Showers have largely moved out of the area but could see an
isolated shower or two, mainly from Canton to Youngstown.
Otherwise raised temperatures by a couple degrees across
northwest Ohio where temperatures were recovering nicely in the
sun.

Previous Discussion... A band of rain continues to slowly
propagate eastward in a SSW to NNE orientation ahead of a cold
front, as a mid-level vorticity maximum moves northeast across
the region. Rain and perhaps some embedded thunder will move
across the area this morning and have retained high PoPs with an
additional up to one-quarter of an inch of rain expected. Rain
will push east of the area during the afternoon as the surface
front advances across the forecast area and have PoPs decreasing
to dry. High pressure will build in quickly behind the front
for tonight into Wednesday, as some upper level ridging builds
across the Great Lakes region. This will continue to promote a
dry forecast through the end of the near term period.
Temperatures are cooler already from 24 hours ago and will fall
slightly with the cold front, so high temperatures may occur
earlier in the day for eastern sites. With the aggression of the
high pressure coming back and the return flow across the
region, temperatures could recover back into the low-to-mid 70s
for Northwest and North Central Ohio. Clearing and high pressure
across the region tonight will allow for lows in the lower 50s
and perhaps upper 40s. Return flow on Wednesday will allow for
warm temperatures into the upper 70s to lower 80s.
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&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/...
An upper level ridge of high pressure will amplify over the Upper
Ohio Valley and eastern Great Lakes region Wednesday night into
Thursday. At the surface, a weak area of high pressure will stretch
from the Great Lakes region into Mid-Atlantic on Thursday. High
temperatures Thursday afternoon will continue to be above average for
early May with upper 70s closer to the lakeshore and lower 80s
inland. The low level surface winds will be relatively weak and
variable on Thursday which will allow for a lake breeze to develop
and drift inland from the lakeshore later Thursday afternoon and
evening.

The surface high will move towards the Northeast Region of the CONUS
by Friday. A southeast to southerly low level flow will return late
Thursday night into Friday. An upper level trough will swing through
the Upper Midwest into the western Great Lakes region on Friday. An
area of low pressure will track through the Upper Great Lakes region
Friday with a trailing weak cold front. This front will push through
the area Friday afternoon and evening with scattered rain showers
likely and embedded thunderstorms possible. The thermodynamics looks
relatively weak for any organized convection. High temperatures will
again be very warm ahead of the front Friday in the upper 70s to
lower 80s. The weak front will slow down and perhaps stall out near
the area Friday night keeping rain chances in the forecast through
this time period.

&&

.LONG TERM /SATURDAY THROUGH MONDAY/...
The forecast for this weekend has become a little more uncertain and
not clear cut with the forecast guidance showing a weak front
stalling out near by or just east of the area on Saturday. We have
bumped up POPs for Saturday with the slow moving or stalled front in
the region. High temperatures will be knocked down a little bit into
the lower and middle 70s this weekend due to added cloud cover and
rain chances. We will maintain scattered POPs for Sunday as well
with the frontal boundary drifting a little further eastward from
the area. We may be in between systems on Monday with a slight drier
trend and lower rain chances. Another weak front and weather system
may arrive by next Tuesday with slightly higher rain chances. Above
average temperatures are expected to continue into early next
week.

&&

.AVIATION /18Z Tuesday THROUGH Sunday/...
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MVFR remains at a few of the eastern terminals but will lift to
VFR through 20Z and then scatter out shortly after that. Can not
rule out an isolated shower but coverage will be low so did not
include in the TAFs. Once skies clear, conditions will be VFR
through the remainder of the TAF period. There will be some mid
or high cloud arriving by Wednesday morning in Northwest or
North Central Ohio by Wednesday morning.

Winds will range from southwest to northwest this afternoon,
with some gusts to 20 knots possible in NW Ohio or near the
lakeshore. Otherwise winds back to south/southwest tonight and
are generally light. Southwest winds increase towards the end of
the TAF period with gusts of 20-25 knots developing after 16Z.

Outlook...Non-VFR may return in showers and thunderstorms
Thursday night through Saturday.
-- End Changed Discussion --

&&

.MARINE...
Weather conditions regarding winds and waves on the lake look
relatively quiet for the rest of this week into the weekend. West to
southwest 5 to 12 knots are expected behind a weakening cold front
today. Southwest winds at 5 to 10 knots are expected tonight and
Wednesday with high pressure building over the lake. Light and
variable winds are expected Wednesday night underneath the surface
high pressure. Winds will shift from the East at 8 to 12 knots
Thursday briefly before a warm front lifts across the lake Thursday
night. Southwest winds 10 to 15 knots return Friday. A weak cold
front will push across the lake Friday night into early Saturday.
Variable winds will remain around 10 knots or less into the weekend.

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...None.
PA...None.
NY...None.
MARINE...None.

&&

$$

SYNOPSIS...Sefcovic
NEAR TERM...KEC/Sefcovic
SHORT TERM...Griffin
LONG TERM...Griffin
AVIATION...KEC
MARINE...Griffin