Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 170205
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1005 PM EDT WED APR 16 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE OF 29.9 INCHES OVER CENTRAL IOWA THIS
EVENING WILL MAKE ITS WAY INTO CENTRAL WISCONSIN OVERNIGHT. THE LOW
WILL MOVE ACROSS UPPER MICHIGAN THURSDAY AND REACH ONTARIO FRIDAY
MORNING...WEAKENING TO 30.2 INCHES. MEANWHILE...HIGH PRESSURE OF 30.4
INCHES WILL MOVE FROM THE LOWER GREAT LAKES INTO THE NEW ENGLAND
STATES...STRENGTHENING TO 30.8 INCHES. FRIDAY AFTERNOON ANOTHER HIGH
PRESSURE SYSTEM OF 30.4 INCHES OVER MANITOBA WILL MOVE EASTWARD INTO
JAMES BAY...EXPANDING A 30.3 INCH RIDGE OVER THE GREAT LAKES THROUGH
SATURDAY NIGHT. LOW PRESSURE OF 29.9 INCHES OVER MANITOBA ON SUNDAY
WILL CROSS INTO QUEBEC BY MONDAY...AND A LOW PRESSURE TROUGH
AVERAGING 30.0 INCHES WILL DROP ACROSS THE GREAT LAKES.

LSZ162-171015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1005 PM EDT WED APR 16 2014 /905 PM CDT WED APR 16 2014/

...GALE WARNING IN EFFECT UNTIL 6 AM EDT /5 AM CDT/ THURSDAY...

.REST OF TONIGHT...EAST WINDS 20 TO 30 KNOTS. FREQUENT GALE FORCE
GUSTS TO 35 KNOTS. SNOW. WAVES 5 TO 9 FEET.
.THURSDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.FRIDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS BACKING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST
LESS THAN 10 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES CALM
TO 2 FEET.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ263-264-171015-
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-
1005 PM EDT WED APR 16 2014

.REST OF TONIGHT...EAST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE GUSTS
TO 35 KNOTS ARE POSSIBLE. SNOW. WAVES 2 TO 4 FEET BUILDING TO 4 TO 7
FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. SNOW SHOWERS LIKELY THROUGH EARLY
AFTERNOON...THEN A CHANCE OF SNOW SHOWERS BY MID AFTERNOON. WAVES
SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF FREEZING DRIZZLE AND SNOW SHOWERS THROUGH MIDNIGHT. WAVES
SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS THROUGH EARLY
AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO
3 FEET.
.FRIDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.SATURDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW THROUGH
EARLY AFTERNOON...THEN SNOW LIKELY BY MID AFTERNOON. WAVES CALM
TO 2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. SNOW LIKELY THROUGH MIDNIGHT. A
CHANCE OF RAIN. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST. WAVES
SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

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

$$

LSZ265-171015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1005 PM EDT WED APR 16 2014

.REST OF TONIGHT...EAST WINDS 20 TO 30 KNOTS. SNOW.
.THURSDAY...SOUTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. SNOW SHOWERS LIKELY.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF FREEZING
DRIZZLE AND SNOW SHOWERS THROUGH MIDNIGHT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF SNOW.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. SNOW LIKELY THROUGH MIDNIGHT...THEN RAIN LIKELY
AFTER MIDNIGHT.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS.

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

$$

LSZ266-267-171015-
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-
1005 PM EDT WED APR 16 2014

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW.
.THURSDAY...SOUTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. A SLIGHT
CHANCE OF RAIN SHOWERS BY MID AFTERNOON.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE AND SNOW SHOWERS THROUGH
MIDNIGHT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
SHOWERS THROUGH EARLY AFTERNOON.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF SNOW.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. SNOW LIKELY
THROUGH MIDNIGHT...THEN RAIN LIKELY AFTER MIDNIGHT.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO 15 KNOTS.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO 20 KNOTS.

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

$$
LSZ261-171015-
MAFOR 1703/
SUPERIOR WEST...GALE WARNING IN EFFECT...14247 19257 11130 11120 12810.
CHANCE OF SNOW SHOWERS THURSDAY AFTERNOON. WAVES 5 TO 9 FEET OVERNIGHT
SUBSIDING TO 2 TO 4 FEET THURSDAY. WAVES 1 TO 3 FEET THURSDAY
EVENING.

SUPERIOR NORTH CENTRAL 13237 13337 11320 11300. CHANCE OF SNOW
SHOWERS AND SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE THURSDAY EVENING.
WAVES 1 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 12237 13337 11327 11310 11400. CHANCE OF SNOW
SHOWERS THURSDAY EVENING. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST 12237 14340 11330 11320. SLIGHT CHANCE OF LIGHT
FREEZING DRIZZLE THURSDAY EVENING. WAVES OMITTED FOR MOSTLY ICE
COVERED AREAS.

$$

JS




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