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 KMQT 150753
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
353 AM EDT WED OCT 15 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE OF 29.5 INCHES...WITH A BROAD CENTER
EXTENDING FROM ILLINOIS TO NORTHERN LOWER MICHIGAN...WILL DRIFT INTO
LOWER MICHIGAN THIS EVENING WHILE GRADUALLY WEAKENING TO 29.7 INCHES.
MEANWHILE...A HIGH PRESSURE RIDGE OF 30.0 INCHES EXTENDING FROM THE
NORTHERN PLAINS TO NORTHERN ONTARIO WILL SHIFT EAST...REACHING
WESTERN LAKE SUPERIOR THIS AFTERNOON. ANOTHER LOW PRESSURE SYSTEM OF
29.5 INCHES TRACKING EAST ACROSS FAR SOUTH CENTRAL CANADA ON THURSDAY
WILL THEN MERGE WITH THE REMNANT GREAT LAKES LOW ON FRIDAY AND DEEPEN
TO 29.1 INCHES NEAR JAMES BAY. THE LOW WILL REMAIN NEARLY STATIONARY
THROUGH SATURDAY...BEFORE MOVING INTO NORTHERN QUEBEC ON SUNDAY.
IN ITS WAKE...A HIGH PRESSURE RIDGE OF 30.1 INCHES BUILDING ACROSS
THE PLAINS SATURDAY WILL REACH THE WESTERN GREAT LAKES EARLY SUNDAY.

LSZ162-151600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
353 AM EDT WED OCT 15 2014 /253 AM CDT WED OCT 15 2014/

.EARLY THIS MORNING...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM
TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TODAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO
3 FEET.
.TONIGHT...EAST WINDS LESS THAN 10 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY
AFTERNOON...THEN SHOWERS LIKELY BY MID AFTERNOON. WAVES BUILDING
TO 3 TO 5 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING EAST. WAVES CALM
TO 2 FEET.

$$

LSZ263-151600-
LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE
CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE
ROYALE NATIONAL PARK-
353 AM EDT WED OCT 15 2014

.EARLY THIS MORNING...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES 1 TO
3 FEET BUILDING TO 2 TO 4 FEET.
.TODAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHEAST LESS THAN
10 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON...THEN RAIN SHOWERS LIKELY BY MID AFTERNOON. WAVES
BUILDING TO 3 TO 5 FEET.
.FRIDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING
TO 5 TO 9 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES SUBSIDING
TO CALM TO 2 FEET.

$$

LSZ264-151600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
353 AM EDT WED OCT 15 2014

.EARLY THIS MORNING...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES 2 TO
4 FEET.
.TODAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS LESS THAN 10 KNOTS INCREASING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON...THEN RAIN SHOWERS LIKELY BY MID AFTERNOON. WAVES
BUILDING TO 3 TO 5 FEET.
.FRIDAY NIGHT...NORTH GALES TO 40 KNOTS. A CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT...THEN RAIN SHOWERS LIKELY...POSSIBLY MIXED WITH
SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 7 TO 10 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS BACKING EAST. WAVES SUBSIDING
TO CALM TO 2 FEET.

$$

LSZ265-151600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
353 AM EDT WED OCT 15 2014

.EARLY THIS MORNING...NORTHEAST WINDS 15 TO 25 KNOTS. ISOLATED
SHOWERS. WAVES 4 TO 7 FEET.
.TODAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.THURSDAY...NORTHWEST WINDS LESS THAN 10 KNOTS BECOMING EAST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO
3 TO 5 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY. WAVES
BUILDING TO 7 TO 10 FEET.
.SATURDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-151600-
LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI
AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER
BEYOND 5NM FROM SHORE-
353 AM EDT WED OCT 15 2014

.EARLY THIS MORNING...NORTHEAST WINDS 15 TO 25 KNOTS. SCATTERED
RAIN SHOWERS. WAVES 5 TO 8 FEET.
.TODAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. ISOLATED RAIN SHOWERS. WAVES SUBSIDING
TO 3 TO 5 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS LESS THAN 10 KNOTS VEERING EAST BY
MID AFTERNOON. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH EARLY
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.FRIDAY NIGHT...NORTHWEST GALES TO 35 KNOTS BECOMING NORTH GALES
TO 40 KNOTS AFTER MIDNIGHT. RAIN SHOWERS LIKELY THROUGH
MIDNIGHT...THEN A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 9 TO 12 FEET.
.SATURDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF RAIN SHOWERS...POSSIBLY MIXED WITH SNOW.
WAVES SUBSIDING TO 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-151600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
353 AM EDT WED OCT 15 2014

.EARLY THIS MORNING...NORTHEAST WINDS 10 TO 20 KNOTS. NUMEROUS
SHOWERS. WAVES 3 TO 6 FEET.
.TODAY...NORTHEAST WINDS 10 TO 20 KNOTS. SCATTERED SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH LESS
THAN 10 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS
THROUGH EARLY AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS LESS THAN 10 KNOTS INCREASING
TO 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES BUILDING TO
3 TO 5 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT...THEN RAIN SHOWERS LIKELY AFTER MIDNIGHT. WAVES
BUILDING TO 9 TO 12 FEET.
.SATURDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS.
RAIN SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ261-151600-
MAFOR 1509/
SUPERIOR WEST 12120 12110 12200 12300. WAVES 4 FEET OR LESS.

SUPERIOR NORTH CENTRAL 13120 12110 13100. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 12130 11120 11820 12810 12800. ISOLATED RAIN
SHOWERS EARLY THIS MORNING. WAVES 4 TO 7 FEET TODAY SUBSIDING TO
1 TO 5 FEET TONIGHT.

SUPERIOR EAST 13130 11120 14110. SCATTERED RAIN SHOWERS TODAY.
SLIGHT CHANCE OF RAIN SHOWERS TONIGHT. WAVES 1 TO 6 FEET.

$$

KC




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