Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | 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

410
FZUS63 KDTX 220142
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
942 PM EDT THU MAY 21 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 COLD FRONT...AVERAGING 29.90 INCHES...WILL DROP SOUTH
THROUGH THE CENTRAL GREAT LAKES TONIGHT. HIGH PRESSURE...30.30
INCHES...WILL AGGRESSIVELY REBUILD TOMORROW AND PERSIST THROUGH
SATURDAY. A WARM FRONT WILL LIFT NORTH OVER THE SECOND HALF OF THE
WEEKEND.

LCZ460-220815-
LAKE ST CLAIR-
942 PM EDT THU MAY 21 2015

.REST OF TONIGHT...WEST WINDS 10 TO 15 KNOTS...BECOMING NORTHWEST
5 TO 10 KNOTS AFTER MIDNIGHT...THEN INCREASING TO 10 TO 15 KNOTS
LATE. PARTLY CLOUDY. SCATTERED LIGHT SHOWERS. WAVES 2 FEET OR
LESS.
.FRIDAY...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO 10 KNOTS
LATE. SUNNY. WAVES 2 FEET OR LESS.
.FRIDAY NIGHT...NORTHEAST WINDS 5 TO 10 KNOTS...VEERING TO THE
SOUTHEAST AFTER MIDNIGHT. CLEAR. WAVES 2 FEET OR LESS.
.SATURDAY...SOUTH WINDS 5 TO 10 KNOTS. SUNNY. WAVES 2 FEET OR LESS.
.SATURDAY NIGHT...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.SUNDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY SUNNY THROUGH MID
AFTERNOON...BECOMING MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. WAVES 2 FEET OR LESS.
.MONDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.
.TUESDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 FEET OR LESS.

$$

SC

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.