NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION. Privacy and Cookie policy

LMZ878 Expires:202312081015;;088085 Fzus63 Kmkx 080312 Glflm
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 912 pm cst Thu dec 7 2023
for waters beyond five nautical miles of shore on lake michigan.
waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered.
Synopsis..
following some modest southerly gusts to around 20 knots over most of the lake through midnight central standard time, south to southwest winds with gusts up to 30 kts will gradually rebuild going into early Friday morning and last into the mid afternoon hours as low pressure of 29.3 inches moves eastward into southern ontario. Another area of low pressure will develop over illinois Friday night and move northeastward across lake michigan on Saturday. South winds will shift to the west Saturday afternoon and to the northwest on Sunday as the low exits to the northeast. Wind gusts may reach gale force for the southern half of lake michigan Saturday morning.
lmz080-669-671-673-675-777-779-870-872-874-876-878-081015- lake michigan from michigan city in to st. Joseph mi 5 nm offshore to mid lake- lake michigan from sheboygan to port washington wi 5 nm offshore to mid lake- lake michigan from port washington to north point light wi 5 nm offshore to mid lake- lake michigan from north point light to wind point wi 5 nm offshore to mid lake- lake michigan from wind point wi to winthrop harbor il 5 nm offshore to mid lake- lake michigan from winthrop harbor to wilmette harbor il 5 nm offshore to mid lake- lake michigan from wilmette harbor il to michigan city in 5 nm offshore to mid lake- lake michigan from whitehall to pentwater mi 5 nm offshore to mid lake- lake michigan from grand haven to whitehall mi 5 nm offshore to mid lake- lake michigan from holland to grand haven mi 5 nm offshore to mid lake- lake michigan from south haven to holland mi 5 nm offshore to mid lake- lake michigan from st. Joseph to south haven mi 5 nm offshore to mid lake- 912 pm cst Thu dec 7 2023
sheboygan wi to pentwater mi south...
Rest of tonight..South winds 15 to 25 kt increasing to 30 kt. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
Friday..South winds to 30 kt diminishing to 15 to 25 kt. Waves 5 to 8 ft occasionally to 10 ft.
Friday night..South winds 10 to 20 kt increasing to 30 kt. Rain overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
Saturday..Southwest gales to 35 kt becoming west to 30 kt. Chance of rain in the morning. Waves 4 to 7 ft occasionally to 9 ft.
Saturday night..West winds 10 to 20 kt becoming northwest. Waves 4 to 7 ft occasionally to 9 ft.
Sunday..Northwest winds 15 to 25 kt. Waves 5 to 8 ft occasionally to 10 ft.
Sunday night..Northwest winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Monday..West winds 10 to 20 kt becoming southwest. Waves 3 to 5 ft.
Tuesday..West winds to 30 kt diminishing to 15 to 25 kt. Waves 4 to 7 ft occasionally to 9 ft.

LMZ800
No data

FXUS63 KIWX 072319 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 619 PM EST Thu Dec 7 2023

SYNOPSIS
Issued at 105 PM EST Thu Dec 7 2023

Sunny and mild conditions are expected through Friday with highs in the 50s. Light rain showers are possible Friday night into Saturday with some light lake effect snow late Sunday. Next week will be dry with seasonable temperatures.

SHORT TERM
(Tonight and Friday)
Issued at 105 PM EST Thu Dec 7 2023

Mild this period beneath expanding mid-upper ridge ewd of splitting wrn US longwave trough. Deepening swrly flow will yield an uptick in mixing with highs tomorrow aftn well into the 50s.

LONG TERM
(Friday night through Wednesday)
Issued at 105 PM EST Thu Dec 7 2023

Leading shortwave disturbance emanating out of broader wrn longwave quite progressive and based on tight consensus track taking this sys well west of the area Fri, any associated prefrontal rainfall will be spotty and light late Fri into early Sat as primary wave lifts out well south through the TN valley this weekend.

Thereafter brief post frontal cold advection with brief lake effect expect Sun over nw IN followed by an extended period of dry and seasonable weather into next weekend.

AVIATION
(For the 00Z TAFS through 00Z Friday Evening)
Issued at 615 PM EST Thu Dec 7 2023

Strong surface based inversion developing this evening will decouple surface winds from increasing LLJ above leading to LLWS overnight into Friday morning. Despite very shallow mixing depth still expecting gusty S/SW flow Friday afternoon. Otherwise expect VFR conditions through the period.

IWX WATCHES/WARNINGS/ADVISORIES
IN...NONE.
MI...NONE.
OH...NONE.
LM...Small Craft Advisory from 5 AM to 4 PM EST Friday for LMZ043-046.

toggle option: (graph/table)

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Grand Rapids/Muskegon, MI,