Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
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 250754
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
354 AM EDT MON MAY 25 2015

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 WEAK SURFACE TROUGH OF 29.70 INCHES WILL LIFT INTO THE
WESTERN GREAT LAKES TODAY...BEFORE LIFTING INTO QUEBEC ON TUESDAY.
ANOTHER WEAK SURFACE TROUGH...29.80 INCHES...WILL DIVE INTO LOWER
MICHIGAN TUESDAY NIGHT. SURFACE RIDGING AT 30.10 INCHES WILL EXPAND
INTO THE GREAT LAKES REGION BY WEDNESDAY NIGHT.

LCZ460-252015-
LAKE ST CLAIR-
354 AM EDT MON MAY 25 2015

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...SOUTHWEST WINDS 15 TO 20 KNOTS...INCREASING TO 20 TO
25 KNOTS BY MID AFTERNOON. PARTLY SUNNY. A CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES 2 TO 3 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 20 KNOTS...DIMINISHING TO 10 TO
15 KNOTS BY MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHWEST WINDS 5 TO 10 KNOTS...BECOMING SOUTH 10 TO
15 KNOTS BY LATE MORNING. MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS BY MID AFTERNOON. WAVES 2 FEET OR LESS.
.TUESDAY NIGHT...SOUTH WINDS 15 TO 20 KNOTS...BECOMING SOUTHWEST 20
TO 25 KNOTS BY MIDNIGHT...THEN DIMINISHING TO 10 TO 15 KNOTS AFTER
MIDNIGHT. MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY THROUGH
MIDNIGHT...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT.
WAVES 1 TO 3 FEET. A SMALL CRAFT ADVISORY MAY BE NEEDED.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO
10 KNOTS THROUGH MIDNIGHT. PARTLY SUNNY THROUGH EARLY AFTERNOON...
THEN A CHANCE OF SHOWERS AND THUNDERSTORMS BY MID AFTERNOON. PARTLY
CLOUDY THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.
.THURSDAY...EAST WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET OR
LESS.
.FRIDAY...SOUTHWEST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.

$$

CB

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)


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