Marine Weather and Tide Forecast for Springfield, OH

KEY MESSAGES
1) Mid and upper level low will track from the Great Lakes into New England today. This will offer cooler temperatures, including freezing temperatures overnight tonight.

2) Temperatures will make a return to above normal for high temperatures for the first half of next week, returning to near normal for the second half. A chance of rain Thursday.

DISCUSSION
KEY MESSAGE 1)

Mid and upper level low to track thru the Great Lakes tonight and into New England today. This will place the Ohio Valley in a northwest flow pattern. Surface high pressure builds over MO today and tonight. Considerable cloud cover is expected in the cold advection, along with a decent nw wind 10-15 mph. This is particularly true in central OH closer to the cold pool.

Decreasing winds combined with clear skies will lead to cool overnight temperatures. Expect lows to be in the upper 20s to low 30s.

KEY MESSAGE 2)
High pressure will build to the south of the Ohio Valley and extend a ridge into the western Appalachians, bringing a southwest flow to the region. As a result, a dry forecast is expected through mid week with highs moderating to a few degrees on either side of 60 Monday and Wednesday, peaking in the mid-upper 60s Tuesday.

The high will shift ewd and a cold front will cross the region later Wednesday, ushering in high temperatures in the lower 50s for Thursday, upper 40s Friday, and near 50 on Saturday.

In the wake of the cold front, there is a lifting mechanism with a strong low pressure lobe rotating around a strong swd diving low in the Midwest. This initial low and subsequent broad low pressure center will bring a chance of rain to the region, primarily Thursday but possibly starting Wed night in the srn and sern CWA

AVIATION /06Z SATURDAY THROUGH WEDNESDAY/
Northwest wind will be a little stronger than the overnight winds tonight, but sct sc over CVG/LUK, sct-bkn sc at DAY/ILN, and bkn-ovc sc at CMH will persist overnight. The sc at a generally same level will become thicker in the morning and I blended the winds to account for the stronger timing in the late morning/afternoon.

Skies will clear in the late day at CVG/LUK, by sunset at DAY/ILN, and after sunset at CMH/LCK. Wind will eventually go light from the west as a ridge of high pressure extends ewd into the area from a strong high pressure center in MO.

OUTLOOK...Significant weather is not expected.

ILN WATCHES/WARNINGS/ADVISORIES
OH...Frost Advisory until 9 AM EST this morning for OHZ073-077>082-088.
Freeze Warning from midnight tonight to 10 AM EST Sunday for OHZ073- 077>082-088.
KY...Frost Advisory until 9 AM EST this morning for KYZ089>100.
Freeze Warning from midnight tonight to 10 AM EST Sunday for KYZ089>100.
IN...Frost Advisory until 9 AM EST this morning for INZ073>075-080.
Freeze Warning from midnight tonight to 10 AM EST Sunday for INZ073>075-080.