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LMZ522 Expires:202312040900;;858737 Fzus53 Kgrb 040129 Nshgrb
nearshore marine forecast national weather service green bay wi 729 pm cst Sun dec 3 2023
for waters within five nautical miles of the shore on lake michigan
lmz521-522-040900- green bay south of line from cedar river to rock island passage and north of a line from oconto wi to little sturgeon bay wi- green bay south of line from oconto wi to little sturgeon bay wi- 729 pm cst Sun dec 3 2023
Tonight..NW wind 10 to 15 kts. A slight chance of snow showers in the evening. Waves 1 to 3 ft.
Monday..NW wind 5 to 10 kts backing W in the afternoon. Partly cloudy. Waves 2 ft or less.
Monday night..SW wind 5 to 10 kts veering nw after midnight. Mostly cloudy. Waves 2 ft or less.
Tuesday..N wind 5 to 10 kts. Mostly cloudy. Waves 2 ft or less.

LMZ500
No data

FXUS63 KGRB 032350 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 550 PM CST Sun Dec 3 2023

Updated aviation portion for 00Z TAF issuance

SHORT TERM
Tonight and Monday Issued at 236 PM CST Sun Dec 3 2023

Key Messages:

- Light snow will come to an end late this afternoon or early this evening.

- Temperatures falling well below freezing could cause roads to become icy tonight.

Forecast Discussion:

The low pressure system and upper level system will continue to move away from the area tonight. The accumulating snow will come to an end across eastern Wisconsin late this afternoon or early this evening. Will let the Winter Weather Advisory expire for Oconto County as the best accumulating snow will be east of them.
Decided to keep the Winter Weather Advisory going for Door County as it will continue to snow for a few more hours and temperatures across the northern portion of the county had already dropped below freezing. Think there could be a light coating of snow on roadways.

Later tonight, temperatures are expected to drop well below freezing leading to the potential for icy roads for the Monday morning commute. Will highlight this scenario with a Special Weather Statement. Did not stray far from guidance for lows tonight. Leaned toward the cooler guidance for highs across central and north-central Wisconsin where more clouds are expected, and a blend of the cooler MET and warmer MAV guidance across eastern Wisconsin where there should be a little more sunshine.

LONG TERM
Monday Night Through Sunday Issued at 236 PM CST Sun Dec 3 2023

Key Messages:

- A Clipper system may bring a dusting to an inch of snow to central Wisconsin Monday night.

- Mild and dry weather expected for most of the week.

Medium range models depict a mild week ahead with high upper heights and little chance of significant precipitation. An Alberta Clipper my bring a light snowfall to central Wisconsin Monday night as it passes by to our southwest, but then an upper ridge approaches from the Plains during the middle of the week and brings mild, dry weather.

It now appears that shortwaves moving through the Polar and Subtropical jet streams late in the week will be too far apart to phase and produce a significant synoptic scale weather system that would bring rain or snow to Wisconsin. There could be a system moving across the Ohio Valley which would be too far south to affect Wisconsin.

While there doesn't appear to be much opportunity for natural snow for the rest of this week, it will be cold enough at night for snowmaking on ski hills.

AVIATION
for 00Z TAF Issuance Issued at 541 PM CST Sun Dec 3 2023

Patchy light snow or flurries will come to an end in eastern WI by 02z-03z, with lingering IFR ceilings improving to MVFR.
Otherwise, expect an improving trend to VFR and partial clearing in northeast WI, while BKN-OVC MVFR conditions prevail farther west and south. Patchy fog may form in parts of NC/C WI late tonight into Monday morning, but will only mention MVFR vsbys at this time.

GRB WATCHES/WARNINGS/ADVISORIES
None.

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