Great Lakes Forecast
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FZUS63 KDTX 172031
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
331 PM EST Fri Jan 17 2020

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...A strong area of high pressure at 30.90 inches
centered over the Great Lakes will push east this evening as a
low pressure system lifts through the central Great Lakes on
Saturday. The low will deepen from 29.60 inches near southern Lake
Michigan Saturday morning to around 29.40 inches Saturday evening
over northern Lake Huron. Gusts to gale-force will be likely
across the central Great Lakes with Gale Warnings up for Lakes
Huron, St. Clair, and Michigan waters of Erie.

LCZ460-180915-
Lake St Clair-
331 PM EST Fri Jan 17 2020

...GALE WARNING IN EFFECT FROM SATURDAY AFTERNOON THROUGH LATE
SATURDAY NIGHT...

.TONIGHT...Southeast winds 10 to 15 knots increasing to 15 to 20
knots after midnight. Snow after midnight. Snow may be heavy at
times after midnight. Waves 1 to 3 feet.
.SATURDAY...South winds 20 to 25 knots with gusts to 30 knots
veering to the southwest with gusts to 35 knot gales late in the
afternoon. Snow in the morning...then light rain likely and snow
in the afternoon. A chance of drizzle. Waves 2 to 4 feet.
.SATURDAY NIGHT...West winds 20 to 25 knots with gusts to 35
knot gales. Cloudy. A chance of light rain and snow in the
evening...then a chance of light snow after midnight. Waves 2 to 4
feet.
.SUNDAY...West winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots early in the afternoon. Mostly cloudy
with a chance of light snow showers. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots. Mostly cloudy in the
evening becoming partly cloudy. Waves 1 to 3 feet.
.MONDAY...Northwest winds 10 to 15 knots. Partly cloudy. Waves 2
feet or less.
.TUESDAY...West winds 10 to 15 knots. Partly cloudy. Waves 2 feet or
less.
.WEDNESDAY...Southwest winds 10 to 15 knots. Partly cloudy. Waves 2
feet or less.

$$

SC

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes


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