Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
000
FZUS63 KDTX 182011
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
311 PM EST Sat Jan 18 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...Low pressure, 29.40 inches, will track from central
Lake Huron this evening to upstate New York by Sunday morning.
This system will drive an associated cold front across Lake Huron
Sunday morning. High pressure, 30.8 inches, will move front the
northern Plains Monday to the Ohio Valley by Tuesday, weakening
to 30.50 inches.

LCZ460-190915-
Lake St Clair-
311 PM EST Sat Jan 18 2020

...GALE WARNING IN EFFECT THROUGH SUNDAY MORNING...

.TONIGHT...West winds 20 to 25 knots with gusts to 35 knot gales.
Scattered light snow showers and light rain in the evening...then
numerous light snow showers after midnight. Waves 2 to 4 feet.
.SUNDAY...West winds 20 to 25 knots...becoming northwest 15 to 20
knots in the afternoon. Gusts to 35 knot gales early. Mostly
cloudy. Scattered light snow showers in the morning...then
numerous light snow showers in the afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. Partly cloudy. Waves 1
to 3 feet.
.MONDAY...Northwest winds 10 to 15 knots diminishing to 5 to 10
knots early in the afternoon. Mostly sunny. Waves 2 feet or less.
.MONDAY NIGHT...Northwest winds 5 to 10 knots increasing to 10 to 15
knots in the late evening and overnight. Mostly clear. Waves 2 feet
or less.
.TUESDAY...West winds 5 to 10 knots increasing to 10 to 15 knots in
the afternoon and evening. Mostly sunny becoming partly sunny in the
afternoon becoming mostly clear. Waves 2 feet or less.
.WEDNESDAY...Southwest winds 10 to 15 knots. Partly cloudy. Waves 2
feet or less.
.THURSDAY...South winds 10 to 15 knots. Mostly 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



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.