Marine Weather and Tide Forecast for Hamilton, OH

KEY MESSAGES
1) As high pressure and light winds settle over the region Sunday night, temperatures will drop below freezing in the northern CWA

2) Behind the front, a much cooler airmass will move into the region through Tuesday morning. Warmer temperatures will return mid week.

DISCUSSION
KEY MESSAGE 1)
Behind the front, good CAA will develop tonight with a much cooler airmass settling into the region for Sunday and Monday. A freeze watch has been issued for this time in the northern 1/3 of forecast area.

KEY MESSAGE 2)
High temperatures for both Sunday and Monday will generally be in the 50s, some upper 40s north of a Delaware-Bellefontaine line.
Sunday night will be the coolest night with overnight lows in the low to mid 30s. This will lead to the potential for some frost for the northern half of the CWA and freezing temps in the watch area.
Monday night has a chance for frost across the CWA, but the threat for freezing temperatures will lie in central Ohio east of a Marysville-Washington Court House-Portsmouth line.

Mid level ridging will build into the Ohio Valley through mid week, leading to a warming trend Tuesday onward.

AVIATION /20Z SATURDAY THROUGH THURSDAY/

Discussion for 00Z TAFs...

Patchy light rain and drizzle will continue to move east across the area this evening. This will result in some precipitation continuing at the TAF sites, along with occasional MVFR visibilities. This should clear up after 04Z. MVFR ceilings are also in place, and a very brief IFR ceiling is possible. However, ceilings are also expected to become VFR after around 04Z. Dry and VFR conditions are expected through the rest of the TAF period.

The other item to discuss is the wind. Westerly wind gusts of 20-30 knots will continue this evening, before becoming lighter overnight.
Tomorrow, winds will increase again, with gusts of 20-30 knots out of the west from late morning through late afternoon.

OUTLOOK... MVFR conditions are possible on Wednesday.

ILN WATCHES/WARNINGS/ADVISORIES
OH...Frost Advisory from 2 AM to 9 AM EDT Sunday for OHZ034-035-042-043- 051-060-061-070.
Freeze Watch from late Sunday night through Monday morning for OHZ026-034-035-042>046-051>054-056-060-065.
KY...None.
IN...Frost Advisory from 2 AM to 9 AM EDT Sunday for INZ050-058-059-066- 073-074.
Freeze Watch from late Sunday night through Monday morning for INZ050.