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 49 50
000
FZUS63 KDTX 291953
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
353 PM EDT SUN MAR 29 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...LOW PRESSURE...DEEPENING TO 29.30 INCHES...WILL TRACK
ACROSS ONTARIO AND NORTHERN MICHIGAN TONIGHT. THIS WILL INCREASE
SOUTHERLY WINDS TO GALE FORCE OVER OF LAKE HURON INTO TONIGHT...WITH
NORTHWEST GALES THEN CONTINUING OVER THE NORTHERN THIRD OF THE LAKE
MONDAY. ANOTHER LOW PRESSURE SYSTEM WILL THEN TRACK ACROSS THE
SOUTHERN GREAT LAKES MONDAY NIGHT INTO TUESDAY...HOWEVER WINDS DO
NOT LOOK AS STRONG WITH THIS SECOND SYSTEM.

LCZ460-300815-
LAKE ST CLAIR-
353 PM EDT SUN MAR 29 2015

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

.TONIGHT...SOUTHWEST WINDS 20 TO 25 KNOTS...BECOMING WEST 15 TO
20 KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY THROUGH MIDNIGHT...BECOMING
PARTLY CLOUDY OVERNIGHT. LIGHT RAIN AND SNOW SHOWERS LIKELY EARLY
THIS EVENING...THEN A CHANCE OF LIGHT RAIN AND SNOW SHOWERS BY
MIDNIGHT. WAVES 2 FEET OR LESS.
.MONDAY...WEST WINDS 10 TO 15 KNOTS...INCREASING TO 15 TO 20 KNOTS
BY LATE MORNING...THEN DIMINISHING TO 10 TO 15 KNOTS LATE. PARTLY
SUNNY. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...NORTHWEST WINDS 5 TO 10 KNOTS...VEERING TO THE
NORTHEAST BY MIDNIGHT...THEN BECOMING LIGHT AND VARIABLE AFTER
MIDNIGHT. PARTLY CLOUDY THROUGH MIDNIGHT...THEN LIGHT RAIN AND SNOW
SHOWERS AFTER MIDNIGHT. WAVES 2 FEET OR LESS.
.TUESDAY...NORTHEAST WINDS 5 TO 10 KNOTS. CLOUDY WITH A CHANCE OF
LIGHT RAIN AND SNOW SHOWERS THROUGH EARLY AFTERNOON...THEN PARTLY
SUNNY WITH A CHANCE OF LIGHT SHOWERS BY MID AFTERNOON. WAVES 2 FEET
OR LESS.
.TUESDAY NIGHT...LIGHT AND VARIABLE WINDS...BECOMING NORTHEAST 5 TO
10 KNOTS AFTER MIDNIGHT...THEN BECOMING LIGHT AND VARIABLE LATE.
MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTHEAST WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO
15 KNOTS THROUGH MIDNIGHT. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. A CHANCE
OF LIGHT SHOWERS. WAVES 2 FEET OR LESS.
.FRIDAY...NORTH WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
LIGHT SHOWERS. WAVES 2 FEET OR LESS.

WAVE HEIGHTS ARE FOR ICE FREE AREAS.

$$

HLO

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.