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 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FZUS63 KDTX 220756
GLFSC

LAKE ST CLAIR FORECAST
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
356 AM EDT MON MAY 22 2017

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 LOW PRESSURE SYSTEM...AVERAGING 29.70 INCHES..
POSITIONED JUST NORTH OF LAKE SUPERIOR THIS MORNING WILL LIFT SLOWLY
NORTHEASTWARD INTO ONTARIO THROUGH THE DAY.  THIS LOW WILL THEN
SETTLE INTO WESTERN QUEBEC BY TONIGHT.  MEANWHILE HIGH
PRESSURE...AVERAGING 30.00 INCHES...OVER THE OHIO VALLEY WILL BUILD
INTO THE EASTERN GREAT LAKES THROUGH TONIGHT. A SECOND LOW WILL THEN
DEVELOP OVER LAKE MICHIGAN ON TUESDAY.

LCZ460-222015-
LAKE ST CLAIR-
356 AM EDT MON MAY 22 2017

.TODAY...WEST WINDS 10 TO 15 KNOTS. PARTLY SUNNY. WAVES 2 FEET OR
LESS.
.TONIGHT...SOUTHWEST WINDS 10 TO 15 KNOTS DIMINISHING TO 5 TO 10
KNOTS IN THE LATE EVENING AND OVERNIGHT. PARTLY CLOUDY. WAVES 2 FEET
OR LESS.
.TUESDAY...SOUTH WINDS 5 TO 10 KNOTS. PARTLY SUNNY. WAVES 2 FEET OR
LESS.
.TUESDAY NIGHT...LIGHT AND VARIABLE WINDS BECOMING NORTHEAST 5 TO 10
KNOTS AFTER MIDNIGHT. MOSTLY CLOUDY. WAVES 2 FEET OR LESS.
.WEDNESDAY...EAST WINDS 5 TO 10 KNOTS INCREASING TO 10 TO 15 KNOTS
IN THE EVENING. MOSTLY CLOUDY. A CHANCE OF UNTIL LATE AFTERNOON. A
CHANCE OF SHOWERS...THEN SHOWERS LIKELY IN THE EVENING. WAVES 2 FEET
OR LESS.
.THURSDAY...NORTHWEST WINDS 10 TO 15 KNOTS. MOSTLY CLOUDY WITH
SHOWERS LIKELY. WAVES 2 FEET OR LESS.
.FRIDAY...NORTHEAST WINDS 5 TO 10 KNOTS. PARTLY CLOUDY. A CHANCE OF
SHOWERS. WAVES 2 FEET OR LESS.

$$

DRK

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/DTX/GLFTABLESC

GRAPHICAL MARINE FORECASTS ARE AVAILABLE AT WEATHER.GOV/GREATLAKES


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