Great Lakes Forecast
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FZUS63 KMQT 212050
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
350 PM EST WED JAN 21 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A WEAK 30.2 INCH TROUGH OF LOW PRESSURE ACROSS EASTERN
LAKE SUPERIOR WILL SLOWLY ERODE AS 30.5 INCH HIGH PRESSURE OVER THE
NORTHERN PLAINS SINKS TO THE OHIO VALLEY THURSDAY AFTERNOON. 29.4
INCH LOW PRESSURE ACROSS NORTHERN MANITOBA LATE THURSDAY WILL SWING
ACROSS NORTHERN ONTARIO AND INTO QUEBEC FRIDAY AND FRIDAY
NIGHT...WHILE DRAGGING A TROUGH AVERAGING 29.7 INCHES ACROSS LAKE
SUPERIOR. LOOK FOR A 30.1 INCH HIGH PRESSURE SYSTEM OVER NORTH
CENTRAL CANADA FRIDAY NIGHT PUSH ACROSS ONTARIO AT 30.0 INCHES
SATURDAY NIGHT AND SUNDAY...BEFORE EXITING INTO QUEBEC SUNDAY NIGHT.
AT THE SAME TIME A 29.4 INCH LOW PRESSURE SYSTEM ACROSS NORTHERN
SASKATCHEWAN SATURDAY SHOULD BE ABLE TO SINK ACROSS MINNESOTA AND
WISCONSIN SUNDAY MORNING AT 29.5 INCHES...AND THE OHIO VALLEY BY
LATE SUNDAY AFTERNOON. THIS WILL BE FOLLOWED BY A 30.3 INCH HIGH
PRESSURE SYSTEM SETTLING INTO ONTARIO AND LAKE SUPERIOR MONDAY.

LSZ162-220500-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
350 PM EST WED JAN 21 2015

.LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. ISOLATED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. ISOLATED SNOW SHOWERS.
WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...SOUTHWEST GALES TO 35 KNOTS. FREEZING SPRAY IN
THE EVENING. WAVES BUILDING TO 6 TO 9 FEET.
.FRIDAY...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-220500-
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-
350 PM EST WED JAN 21 2015

...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...

.LATE THIS AFTERNOON...NORTH WINDS 5 TO 15 KNOTS. ISOLATED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS. WAVES CALM TO
2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE AFTERNOON. WAVES
BUILDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...SOUTHWEST GALES TO 40 KNOTS. FREEZING SPRAY IN
THE EVENING. WAVES BUILDING TO 9 TO 12 FEET.
.FRIDAY...WEST GALES TO 35 KNOTS DIMINISHING TO 15 TO 25 KNOTS IN
THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH IN THE
AFTERNOON. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO 20 KNOTS.
WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ264-220500-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
350 PM EST WED JAN 21 2015

...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...

.LATE THIS AFTERNOON...NORTH WINDS 5 TO 15 KNOTS. ISOLATED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT. ISOLATED SNOW SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...SOUTHWEST GALES TO 40 KNOTS VEERING WEST AFTER
MIDNIGHT. FREEZING SPRAY IN THE EVENING. WAVES BUILDING TO 9 TO
12 FEET.
.FRIDAY...WEST GALES TO 35 KNOTS DIMINISHING TO 15 TO 25 KNOTS IN
THE AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET.
.FRIDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH IN THE
AFTERNOON. WAVES 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO 20 KNOTS.
WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ265-220500-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
350 PM EST WED JAN 21 2015

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING.
WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS. GALE FORCE GUSTS
TO 35 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH IN THE
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS VEERING SOUTH. WAVES BUILDING
TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-220500-
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-
350 PM EST WED JAN 21 2015

.LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. ISOLATED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
3 TO 6 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS. GALE FORCE GUSTS
TO 35 KNOTS. WAVES BUILDING TO 9 TO 12 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS TO 15 TO 25 KNOTS IN THE
AFTERNOON. GALE FORCE GUSTS TO 35 KNOTS IN THE MORNING. WAVES
SUBSIDING TO 4 TO 7 FEET.
.FRIDAY NIGHT...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET...THEN
SUBSIDING TO 3 TO 5 FEET.
.SATURDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS VEERING EAST
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO
3 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ267-220500-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
350 PM EST WED JAN 21 2015

.LATE THIS AFTERNOON...SOUTHWEST WINDS 5 TO 15 KNOTS. SCATTERED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING
TO 2 TO 4 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING. WAVES SUBSIDING
TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS. GALE FORCE GUSTS TO
35 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 5 TO 8 FEET.
.FRIDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH IN THE
AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 3 TO
5 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING EAST AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.MONDAY...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ261-220500-
MAFOR 2122/
SUPERIOR WEST 11710 11720 11820 11710 11600 11620 11520 11540.
WAVES 1 TO 5 FEET.

SUPERIOR NORTH CENTRAL 11820 11720 11820 12720 11610 11620 11540.
WAVES 1 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 11810 14720 11720 11610 11510. SCATTERED
SNOW SHOWERS TONIGHT. WAVES 1 TO 3 FEET.

SUPERIOR EAST 11710 11720 12730 12720 11710 11620. SCATTERED SNOW
SHOWERS TONIGHT. WAVES 1 TO 4 FEET.

$$

KF


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