Great Lakes Forecast
Issued by NWS

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FZUS63 KDTX 261952
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
352 PM EDT TUE MAY 26 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 OF 29.60 INCHES WILL LIFT NORTHWARD THROUGH
WISCONSIN AND THE UPPER PENINSULA OF MICHIGAN THIS EVENING THROUGH
TONIGHT. AS THIS LOW CONTINUES INTO ONTARIO WEDNESDAY...A WEAK COLD
FRONT WILL BE DRAGGED EAST THROUGH THE AREA. HIGH PRESSURE OF 30.10
INCHES WILL THEN BUILD INTO THE REGION FROM WEDNESDAY NIGHT INTO
THURSDAY.

LCZ460-270815-
LAKE ST CLAIR-
352 PM EDT TUE MAY 26 2015

...SEVERE THUNDERSTORM WATCH 221 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

.TONIGHT...SOUTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY. SHOWERS AND
THUNDERSTORMS LIKELY EARLY THIS EVENING...THEN A CHANCE OF SHOWERS
AND THUNDERSTORMS BY MIDNIGHT. SOME THUNDERSTORMS MAY BE SEVERE WITH
DAMAGING WINDS AND LARGE HAIL EARLY THIS EVENING. WAVES 2 FEET OR
LESS.
.WEDNESDAY...SOUTH WINDS 10 TO 15 KNOTS...BECOMING SOUTHWEST 15 TO
20 KNOTS BY LATE MORNING. PARTLY SUNNY. A CHANCE OF SHOWERS AND
THUNDERSTORMS BY LATE MORNING. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 15 KNOTS...BECOMING NORTHWEST
5 TO 10 KNOTS BY MIDNIGHT...THEN BECOMING LIGHT AND VARIABLE AFTER
MIDNIGHT. PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS EARLY
IN THE EVENING. WAVES 2 FEET OR LESS.
.THURSDAY...EAST WINDS 5 TO 10 KNOTS...VEERING TO THE SOUTHEAST BY
LATE MORNING. MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 10 KNOTS EARLY IN THE
EVENING...BECOMING LIGHT AND VARIABLE OVERNIGHT. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.FRIDAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 10 TO 15 KNOTS
THROUGH MIDNIGHT. PARTLY SUNNY...THEN PARTLY CLOUDY WITH A CHANCE OF
SHOWERS AND THUNDERSTORMS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.
.SATURDAY...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH SHOWERS
AND THUNDERSTORMS LIKELY. WAVES 2 FEET OR LESS.
.SUNDAY...NORTHEAST WINDS 10 TO 15 KNOTS. PARTLY CLOUDY. WAVES
2 FEET OR LESS.

$$

BT

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


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