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
000
FZUS63 KDTX 170759 RRA
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
356 AM EDT SUN JUL 17 2016

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...AN AREA OF HIGH PRESSURE...AVERAGING 30.10
INCHES...WILL DRIFT SOUTHEAST AWAY FROM THE GREAT LAKES TODAY.
MEANWHILE...A LOW PRESSURE SYSTEM...AVERAGING 29.50 INCHES...WILL
TRACK THROUGH THE NORTHERN GREAT LAKES REACHING QUEBEC LATER
TONIGHT. THIS SYSTEM WILL PUSH A COLD FRONT SLOWLY THROUGH THE
REGION LATE TONIGHT INTO MONDAY MORNING. THE NEXT HIGH PRESSURE
SYSTEM WILL THEN BUILD ACROSS THE AREA THROUGH THE MIDDLE OF THE
WEEK.

LCZ460-172000-
LAKE ST CLAIR-
356 AM EDT SUN JUL 17 2016

.TODAY...SOUTH WINDS 5 TO 10 KNOTS...INCREASING TO 15 TO 20 KNOTS.
MOSTLY SUNNY. WAVES 2 FEET OR LESS.
.TONIGHT...SOUTH WINDS 15 TO 20 KNOTS...BECOMING SOUTHWEST 10 TO
15 KNOTS BY MIDNIGHT...THEN INCREASING TO 15 TO 20 KNOTS AFTER
MIDNIGHT...BECOMING WEST 10 TO 15 KNOTS LATE. PARTLY CLOUDY EARLY IN
THE EVENING...BECOMING MOSTLY CLOUDY OVERNIGHT. A CHANCE OF SHOWERS
AND THUNDERSTORMS BY MIDNIGHT. WAVES 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 15 KNOTS...BECOMING NORTHWEST 5 TO
10 KNOTS BY LATE MORNING. PARTLY SUNNY. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY. WAVES 2 FEET OR LESS.
.MONDAY NIGHT...NORTH WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
.TUESDAY...NORTH WINDS 10 TO 15 KNOTS...DIMINISHING TO 5 TO 10 KNOTS
BY MID AFTERNOON. MOSTLY SUNNY THROUGH MID AFTERNOON...BECOMING
CLEAR. WAVES 2 FEET OR LESS.
.WEDNESDAY...SOUTH WINDS 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES 2 FEET
OR LESS.
.THURSDAY...SOUTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLEAR. 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.