Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 210158
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
958 PM EDT SUN JUL 20 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.0 INCH HIGH PRESSURE RIDGE WILL LINGER ALONG THE
EAST COAST THROUGH TUESDAY. A 29.3 INCH LOW PRESSURE OVER NORTHERN
MANITOBA WILL TRACK EAST...REACHING HUDSON BAY MONDAY WHILE WEAKENING
TO 29.4 INCHES. LOW PRESSURE OF 29.5 INCHES WILL DEVELOP OVER SOUTH
DAKOTA MONDAY NIGHT AND WILL TRACK EAST...PASSING ACROSS THE UPPER
GREAT LAKES TUESDAY WHILE WEAKENING TO 29.7 INCHES. IN ITS
WAKE...HIGH PRESSURE OF 30.2 INCHES OVER LAKE WINNIPEG TUESDAY NIGHT
WILL BUILD SOUTHEAST AND SETTLE OVER THE UPPER GREAT LAKES THURSDAY
AND WEAKEN TO 30.1 INCHES FRIDAY.

LSZ162-211000-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
958 PM EDT SUN JUL 20 2014 /858 PM CDT SUN JUL 20 2014/

.REST OF TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. ISOLATED SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID
AFTERNOON. AREAS OF FOG. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT. SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH BY MID
AFTERNOON. AREAS OF FOG. SHOWERS AND THUNDERSTORMS THROUGH EARLY
AFTERNOON. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH. A CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ263-264-211000-
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-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
958 PM EDT SUN JUL 20 2014

.REST OF TONIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. AREAS OF FOG. SCATTERED SHOWERS AND THUNDERSTORMS.
WAVES 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. AREAS OF FOG. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH EARLY AFTERNOON. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. AREAS OF FOG. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT. SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTH BY MID AFTERNOON.
AREAS OF FOG. SHOWERS AND THUNDERSTORMS THROUGH EARLY AFTERNOON. A
CHANCE OF SHOWERS AND THUNDERSTORMS BY MID AFTERNOON. WAVES CALM TO 2
FEET.
.TUESDAY NIGHT AND WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ265-211000-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
958 PM EDT SUN JUL 20 2014

.REST OF TONIGHT...SOUTH WINDS 10 TO 20 KNOTS. PATCHY FOG.
ISOLATED SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES CALM TO 2
FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH BY MID AFTERNOON.
PATCHY FOG. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM
TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS. AREAS OF FOG. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. AREAS OF FOG. SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. AREAS OF FOG. WAVES
CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST.
WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ266-267-211000-
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-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
958 PM EDT SUN JUL 20 2014

.REST OF TONIGHT...SOUTH WINDS 15 TO 25 KNOTS. AREAS OF FOG.
ISOLATED SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES 1 TO 3
FEET.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS. AREAS OF FOG. A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST BY MID
AFTERNOON. AREAS OF FOG. SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. AREAS OF FOG. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST.
WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$
LSZ261-211000-
MAFOR 2103/
SUPERIOR WEST 14523 11513 11503 12403. ISOLATED RAIN SHOWERS AND
THUNDERSTORMS OVERNIGHT THROUGH MONDAY AFTERNOON. CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS MONDAY EVENING. WAVES 2 FEET OR LESS.

SUPERIOR NORTH CENTRAL 11423 13523 12513 11413 11403. SCATTERED
RAIN SHOWERS AND THUNDERSTORMS OVERNIGHT THROUGH MONDAY. SLIGHT
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS MONDAY EVENING. WAVES 1 TO
3 FEET OVERNIGHT AND MONDAY. WAVES 1 FOOT OR LESS MONDAY EVENING.

SUPERIOR SOUTH CENTRAL 12420 12520 12410 12310. PATCHY FOG. ISOLATED
RAIN SHOWERS AND THUNDERSTORMS OVERNIGHT THROUGH MONDAY AFTERNOON.
WAVES 2 FEET OR LESS.

SUPERIOR EAST 11430 14423 13413. ISOLATED RAIN SHOWERS AND THUNDERSTORMS
OVERNIGHT. SCATTERED RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
MONDAY. SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS MONDAY EVENING.
WAVES 1 TO 3 FEET OVERNIGHT AND MONDAY. WAVES AROUND 1 FOOT MONDAY EVENING.

$$

JLA






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