Area Forecast Discussion
Issued by NWS Grand Rapids, MI

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297
FXUS63 KGRR 081926
AFDGRR

Area Forecast Discussion
National Weather Service Grand Rapids MI
226 PM EST Sun Dec 8 2019

LATEST UPDATE...
Synopsis/Discussion/Marine

.SYNOPSIS...
Issued at 225 PM EST Sun Dec 8 2019

- light rain tonight and Monday

- rain changes to snow Monday night

- lake effect snow showers Tuesday

&&

.DISCUSSION...(This evening through next Sunday)
Issued at 225 PM EST Sun Dec 8 2019

No big storms this week but there could be some travel impacts
Tuesday morning as cold air rushes in Monday night causing
residual moisture to freeze and adding a coasting of snow on top
of it. The rain transitions to snow and temperatures drop below
freezing by the morning commute, so an advisory may be needed.

Lake effect snow showers continue through Wednesday evening but
are limited by inversion height at or below 5 kft during that
time, so amounts are expected to be light, generally a couple
inches or less across the western third of the forecast area.
Skies should at least partially clear on Wednesday night allowing
temperatures to drop to the 5 to 15 degree range for Thursday
morning.

A weak clipper could bring some light snow across the northern
zones later Thursday, then we will have to watch a southern
stream low moving north at the end of the week that could
eventually spread some rain or snow Friday and Saturday.

&&

.AVIATION...(For the 18Z TAFS through 18Z Monday afternoon)
Issued at 1241 PM EST Sun Dec 8 2019

Areas of MVFR will persist across southern and central Lower
Michigan this afternoon but some clearing of the lower clouds is
expected by this evening before they return later tonight. IFR is
expected to prevail after midnight into Monday morning. Southwest
winds will gust to over 20 knots at times through this afternoon.


&&

.MARINE...
Issued at 225 PM EST Sun Dec 8 2019

Gale Warning was replaced with a SCA for the marine zones north of
Holland. Winds and waves will continue to diminish this afternoon
and evening.

&&

.GRR WATCHES/WARNINGS/ADVISORIES...
MI...None.
LM...Small Craft Advisory until 7 PM EST this evening for LMZ844>849.

&&

$$

SYNOPSIS...Ostuno
DISCUSSION...Ostuno
AVIATION...Ostuno
MARINE...Ostuno



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