Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 051427
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
927 AM EST THU MAR 5 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.6 INCH HIGH PRESSURE OVER IOWA WILL SHIFT SOUTHEAST
THROUGH THE OHIO RIVER VALLEY TONIGHT AND INTO THE SOUTHEAST STATES
BY EARLY SATURDAY. MEANWHILE...A 29.9 INCH LOW PRESSURE IN
SASKATCHEWAN ON FRIDAY WILL SLIDE QUICKLY ACROSS THE UPPER GREAT
LAKES ON EARLY SATURDAY AND THEN INTO NEW ENGLAND EARLY SUNDAY.
EXPECT A TRAILING 30.1 INCH HIGH PRESSURE RIDGE TO CROSS THE UPPER
LAKES LATE SATURDAY IN ADVANCE OF 29.7 INCH LOW PRESSURE THAT WILL
CROSS NORTHERN ONTARIO ON SUNDAY AND DRAG A COLD FRONT OVER LAKE
SUPERIOR LATE IN THE DAY. ANOTHER QUICK MOVING WEAK HIGH PRESSURE
RIDGE AVERAGING 30.0 INCHES WILL CROSS THE REGION LATE SUNDAY INTO
MONDAY.

LSZ162-052230-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
927 AM EST THU MAR 5 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS IN THE AFTERNOON.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS.

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

$$

LSZ263-052230-
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-
927 AM EST THU MAR 5 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST
AFTER MIDNIGHT.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS.
A CHANCE OF SNOW.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS.

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

$$

LSZ264-052230-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
927 AM EST THU MAR 5 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST IN THE
AFTERNOON. A CHANCE OF SNOW.
.SATURDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS.

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

$$

LSZ265-052230-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
927 AM EST THU MAR 5 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED SNOW
SHOWERS.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH IN THE
AFTERNOON. A CHANCE OF SNOW.
.SATURDAY NIGHT...WEST WINDS LESS THAN 10 KNOTS BECOMING
SOUTHWEST 10 TO 20 KNOTS AFTER MIDNIGHT.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS.
A CHANCE OF SNOW.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS.

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

$$

LSZ266-052230-
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-
927 AM EST THU MAR 5 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED SNOW
SHOWERS.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. FLURRIES.
.FRIDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS.

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

$$

LSZ267-052230-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
927 AM EST THU MAR 5 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS. ISOLATED SNOW
SHOWERS.
.TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. FLURRIES IN THE
MORNING...THEN A CHANCE OF SNOW IN THE AFTERNOON.
.FRIDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.SATURDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW.
.SATURDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST
AFTER MIDNIGHT.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. A CHANCE OF
SNOW.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS.

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

$$
LSZ261-052230-
MAFOR 0516/
SUPERIOR WEST 14530 13520 11530. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

SUPERIOR NORTH CENTRAL 12630 14530 11530 11540. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL 11630 11620 14510 12520. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 12620 11520 12510 11520 11420 11530. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

$$

KEC


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