Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 230252
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
952 PM EST SUN FEB 22 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LARGE ARCTIC HIGH PRESSURE OF 30.9 INCHES CENTERED OVER
THE MINNESOTA AND NORTH DAKOTA BORDER WILL SLOWLY SLIDE SOUTHEAST
INTO THE MID MISSISSIPPI VALLEY THROUGH MONDAY WHILE WEAKENING TO
30.8 INCHES. AS THE HIGH SHIFTS EAST TO THE MID ATLANTIC STATES ON
MONDAY NIGHT...A 29.5 INCH LOW OVER WESTERN HUDSON BAY MONDAY
AFTERNOON WILL BEGIN TO DROP SOUTHEAST ACROSS ONTARIO. AS THE LOW
DEEPENS TO 29.3 INCHES TUESDAY MORNING...IT WILL SWEEP A TROUGH
ACROSS THE UPPER GREAT LAKES REGION BEFORE MOVING INTO SOUTHERN
QUEBEC TUESDAY NIGHT. BEHIND THE LOW...A 30.8 INCH HIGH IN NORTHERN
ALBERTA TUESDAY NIGHT WILL MOVE INTO THE DAKOTAS ON THURSDAY AND THE
OHIO RIVER VALLEY ON FRIDAY. THIS WILL KEEP A 30.5 INCH RIDGE OVER
THE UPPER GREAT LAKES REGION THROUGH FRIDAY...ALTHOUGH A WEAK 30.3
INCH TROUGH MAY BRUSH THE REGION THURSDAY NIGHT AS IT MOVES EAST
THROUGH NORTHERN ONTARIO.

LSZ162-231100-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
952 PM EST SUN FEB 22 2015

...GALE WARNING IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY
MORNING...

.REST OF TONIGHT...WEST WINDS 10 TO 20 KNOTS.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON.
.MONDAY NIGHT...SOUTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
10 TO 20 KNOTS AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 20 KNOTS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ263-231100-
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-
952 PM EST SUN FEB 22 2015

...GALE WARNING IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY
MORNING...

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON.
.MONDAY NIGHT...SOUTHWEST GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH
AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ264-231100-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
952 PM EST SUN FEB 22 2015

...GALE WARNING IN EFFECT FROM MONDAY AFTERNOON THROUGH TUESDAY
MORNING...

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT. ISOLATED SNOW SHOWERS.
.MONDAY...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST GALES TO 35
KNOTS BY LATE AFTERNOON. ISOLATED SNOW SHOWERS.
.MONDAY NIGHT...SOUTHWEST GALES TO 35 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ265-231100-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
952 PM EST SUN FEB 22 2015

.REST OF TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS THROUGH MIDNIGHT.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN
SNOW SHOWERS LIKELY.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ266-231100-
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-
952 PM EST SUN FEB 22 2015

...GALE WARNING IN EFFECT FROM MONDAY EVENING THROUGH TUESDAY
MORNING...

.REST OF TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS. WAVES CALM TO
2 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. ISOLATED SNOW SHOWERS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHWEST GALES TO 35 KNOTS. A CHANCE OF SNOW IN
THE EVENING...THEN SNOW LIKELY. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. SNOW LIKELY. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES CALM
TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST. WAVES
CALM TO 2 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES CALM
TO 2 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ267-231100-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
952 PM EST SUN FEB 22 2015

.REST OF TONIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS IN THE MORNING.
.MONDAY NIGHT...SOUTH WINDS 20 TO 30 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW IN THE EVENING...THEN SNOW.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. SNOW.
.TUESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$
LSZ261-231100-
MAFOR 2304/
SUPERIOR WEST...GALE WARNING IN EFFECT...12610 11620 12530 11540
12550. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...13620 11630
12540 12550. CHANCE OF SNOW MONDAY EVENING. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...14620 12520 11530 11540. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR EAST...GALE WARNING IN EFFECT...12720 12620 11630 11530
11440 11450. SCATTERED SNOW SHOWERS. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

$$

KLUBER



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