textproduct: Wilmington
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
WHAT HAS CHANGED
Made some minor adjustments to snow totals on Friday.
KEY MESSAGES
1) Snow on Friday.
2) Cold temperatures this weekend/warmer temperatures next week.
DISCUSSION
KEY MESSAGE 1)
A clipper system will drop down across the eastern Great Lakes during the day on Friday. Backing flow ahead of this will lead to some weak isentropic lift developing tonight. This could lead to a few flurries or light snow showers later tonight. More widespread snow will develop Friday morning and then move southeast across the area through the afternoon. The GFS is a little more aggressive bringing some warmer air in at the low levels compared the the NAM. Even with that though, forecast soundings keep pcpn mostly snow, but suppose it will be tough to rule out some mixed pcpn sneaking into our far southwest during the day. Snow accums generally look to be 1 to 2 inches for central Ohio with an inch or less elsewhere across our area.
KEY MESSAGE 2)
A reinforcing shot of colder air will move into the region behind the clipper system for the weekend. Highs on Saturday will range from the mid teens north to the lower 20s in our south. Lows Friday and Saturday night will be in the single digits and wind chill readings later Friday night into Saturday morning will be in the zero to 15 below range. Temperatures will then moderate heading into next week with highs near or slightly above normal through mid week.
AVIATION /06Z THURSDAY THROUGH MONDAY/
Mostly clear skies are in place across the area early this morning. Models are hinting at some fog and/or stratus development as we get toward daybreak. Will therefore allow for some MVFR vsby/IFR cigs to develop and then linger through much of the morning. Conditions should improve to VFR heading into the afternoon ahead of an approaching low pressure system. As the low drops down across the Great Lakes later tonight, a few light snow showers and MVFR cigs may develop.
OUTLOOK...Light snow is possible Friday along with MVFR conditions.
ILN WATCHES/WARNINGS/ADVISORIES
OH...None. KY...None. IN...None.
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