Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 171957
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
357 PM EDT SUN MAY 17 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE OF 29.5 INCHES NEAR FARGO WILL MOVE
NORTHEAST TO THE MINNESOTA ARROWHEAD TONIGHT WHILE WEAKENING TO
29.6 INCHES. THE LOW WILL MOVE EAST ACROSS NORTHERN LAKE SUPERIOR
ON MONDAY BEFORE QUICKLY MOVING INTO QUEBEC AT 29.8 INCHES ON
MONDAY EVENING. A COLD FRONT TRAILING THIS LOW WILL MOVE ACROSS
LAKE SUPERIOR LATE MONDAY AFTERNOON INTO MONDAY NIGHT. BEHIND THE
COLD FRONT...HIGH PRESSURE OVER 30.4 INCHES OVER CENTRAL CANADA WILL
BUILD SOUTH ACROSS THE NORTHERN PLAINS AND UPPER MISSISSIPPI VALLEY
TUESDAY...THEN ACROSS THE GREAT LAKES WEDNESDAY. A WEAK TROUGH OF
LOW PRESSURE AVERAGING 30.1 INCHES WILL PASS ACROSS LAKE SUPERIOR
FROM THE NORTH THURSDAY INTO THURSDAY NIGHT. A 30.3 INCH HIGH WILL
THEN DROP SOUTH OUT OF ONTARIO AND OVER LAKE SUPERIOR ON FRIDAY.

LSZ162-180400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
357 PM EDT SUN MAY 17 2015

.LATE THIS AFTERNOON...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST.
AREAS OF FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4
FEET SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...EAST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 2 TO 4 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF
RAIN SHOWERS THROUGH MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS THROUGH EARLY AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING NORTHEAST.
WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES CALM
TO 2 FEET.

$$

LSZ263-180400-
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-
357 PM EDT SUN MAY 17 2015

.LATE THIS AFTERNOON...NORTHEAST WINDS 15 TO 25 KNOTS...EXCEPT
SOUTHEAST CLOSER TO THE UPPER MICHIGAN MAINLAND. AREAS OF FOG. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. WIDESPREAD FOG...BECOMING PATCHY AFTER MIDNIGHT. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.MONDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS THROUGH MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS...POSSIBLY
MIXED WITH RAIN. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST. WAVES
CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM TO
2 FEET.

$$

LSZ264-180400-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
357 PM EDT SUN MAY 17 2015

.LATE THIS AFTERNOON...SOUTHEAST WINDS 20 TO 30 KNOTS. WIDESPREAD
FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO
20 KNOTS AFTER MIDNIGHT. WIDESPREAD FOG. A CHANCE OF
THUNDERSTORMS THROUGH MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. PATCHY FOG THROUGH EARLY
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.MONDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS THROUGH
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO
8 FEET.
.TUESDAY...NORTH GALES TO 35 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. A SLIGHT
CHANCE OF RAIN SHOWERS BY MID AFTERNOON. WAVES SUBSIDING TO 2 TO
4 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST.
WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES CALM
TO 2 FEET.

$$

LSZ265-180400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
357 PM EDT SUN MAY 17 2015

.LATE THIS AFTERNOON...SOUTHEAST WINDS 15 TO 25 KNOTS. AREAS OF
FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FEET
SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WIDESPREAD FOG THROUGH MIDNIGHT. AREAS OF FOG AFTER
MIDNIGHT. A CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A
SLIGHT CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS
THROUGH MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO
5 TO 8 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. A SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON. WAVES
SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM TO
2 FEET.

$$

LSZ266-180400-
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-
357 PM EDT SUN MAY 17 2015

.LATE THIS AFTERNOON...SOUTHEAST WINDS 20 TO 30 KNOTS. AREAS OF FOG.
A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. PATCHY DRIZZLE. WAVES
2 TO 4 FEET BUILDING TO 3 TO 5 FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WIDESPREAD FOG. A CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. PATCHY FOG. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. WAVES BUILDING TO 5 TO 9 FEET.
.TUESDAY...NORTH GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. A SLIGHT
CHANCE OF RAIN SHOWERS BY MID AFTERNOON. WAVES 5 TO 8 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH. WAVES
CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM TO
2 FEET.

$$

LSZ267-180400-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
357 PM EDT SUN MAY 17 2015

.LATE THIS AFTERNOON...SOUTHEAST WINDS 20 TO 30 KNOTS. AREAS OF
FOG. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5
FEET.
.TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING SOUTH AFTER
MIDNIGHT. WIDESPREAD FOG. A CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.MONDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING NORTHWEST BY MID
AFTERNOON. AREAS OF FOG. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO
5 TO 8 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. A
SLIGHT CHANCE OF RAIN SHOWERS BY MID AFTERNOON. WAVES 4 TO 8 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-180400-
MAFOR 1721/
SUPERIOR WEST 11223 11323 11313 11423 13530 11520. CHANCE OF SHOWERS
AND THUNDERSTORMS THIS EVENING. CHANCE OF RAIN SHOWERS LATE MONDAY.
WAVES 2 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11343 12333 12423 13620. CHANCE OF SHOWERS
AND THUNDERSTORMS THIS EVENING. CHANCE OF RAIN SHOWERS LATE MONDAY.
WAVES 2 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 12333 11323 12423 11513 11710 11810.
CHANCE OF SHOWERS AND THUNDERSTORMS THIS EVENING. WAVES 1 TO 4
FEET.

SUPERIOR EAST 11343 12333 12423 11523 11613 11720. PATCHY DRIZZLE
EARLY THIS EVENING. CHANCE OF SHOWERS AND THUNDERSTORMS THIS
EVENING. CHANCE OF RAIN SHOWERS LATE MONDAY. WAVES 1 TO 5 FEET.

$$

KLUBER


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