Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | 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 49 50
000
FZUS63 KDTX 220159 RRA
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
956 PM EDT FRI JUL 21 2017

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...High pressure, 29.90 inches, will reside over the
eastern Great Lakes tonight This high will drift east of the region
on Saturday as a low pressure system and frontal boundary, 29.70
inches, moves into the southern Great Lakes region. Weak low
pressure will then expand across the entrie Great Lakes region on
Sunday. This system will exit to the east on Monday, allowing high
pressure to expand into the region from the west.

LCZ460-220800-
Lake St Clair-
956 PM EDT FRI JUL 21 2017

.REST OF TONIGHT...Light and variable winds becoming southeast 5 to
10 knots after midnight. Partly cloudy this evening...then a chance
of showers and thunderstorms after midnight. Mostly cloudy with
light showers likely and a chance of thunderstorms early in the
morning. Waves 2 feet or less.
.SATURDAY...Southwest winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and afternoon. Mostly cloudy. Light
showers likely and a chance of thunderstorms in the morning. Waves 2
feet or less.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots. Partly cloudy. A
chance of showers and thunderstorms until early morning. Waves 2
feet or less.
.SUNDAY...East winds 5 to 10 knots in the morning becoming light and
variable. Partly sunny with a chance of showers and thunderstorms.
Waves 2 feet or less.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots. Partly cloudy. A
chance of showers and thunderstorms until early morning. Waves 2
feet or less.
.MONDAY...North winds 5 to 10 knots increasing to 10 to 15 knots in
the afternoon and evening. Partly cloudy then clearing. Waves 2 feet
or less.
.TUESDAY...Southeast winds 5 to 10 knots. Clear. Waves 2 feet or
less.
.WEDNESDAY...West winds 5 to 10 knots. Mostly clear. Waves 2 feet or
less.

$$

MR

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.