Great Lakes Forecast
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FZUS63 KMQT 211346
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
946 AM EDT TUE APR 21 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.1 INCH LOW PRESSURE SYSTEM NEAR JAMES BAY WILL REMAIN
NEARLY STATIONARY AND SLOWLY WEAKEN THROUGH WEDNESDAY...WHILE
SWEEPING A SERIES OF 29.6 INCH TROUGHS ACROSS THE UPPER GREAT LAKES.
THE LOW WILL SHIFT EAST WEDNESDAY NIGHT...REACHING MAINE AT 29.3
INCHES BY THURSDAY MORNING. MEANWHILE...A 30.3 INCH HIGH OVER
NORTHERN CANADA WILL PUSH A 30.1 INCH RIDGE SOUTH INTO THE NORTHERN
PLAINS ON THURSDAY BEFORE SHIFTING EAST ACROSS THE UPPER GREAT LAKES
FRIDAY THROUGH SATURDAY.

LSZ162-212200-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
946 AM EDT TUE APR 21 2015

.REST OF TODAY...NORTHWEST WINDS 15 TO 25 KNOTS. ISOLATED RAIN
AND SNOW SHOWERS. WAVES 1 TO 3 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. ISOLATED RAIN SHOWERS THROUGH MIDNIGHT.
ISOLATED SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-212200-
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-
946 AM EDT TUE APR 21 2015

.REST OF TODAY...NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. ISOLATED RAIN SHOWERS
THROUGH MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES 2 TO 4 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT AND FRIDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ264-212200-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
946 AM EDT TUE APR 21 2015

.REST OF TODAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS BY MID AFTERNOON. SCATTERED SNOW SHOWERS. WAVES
2 TO 4 FEET BUILDING TO 3 TO 5 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. SCATTERED SNOW SHOWERS.
WAVES BUILDING TO 4 TO 7 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO
3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH. WAVES CALM
TO 2 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST. WAVES
CALM TO 2 FEET.

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

$$

LSZ265-212200-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
946 AM EDT TUE APR 21 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS BY MID AFTERNOON. SCATTERED SNOW SHOWERS. ISOLATED
RAIN SHOWERS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. SCATTERED SNOW SHOWERS
THROUGH MIDNIGHT...THEN NUMEROUS SNOW SHOWERS AFTER MIDNIGHT.
WAVES BUILDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS LIKELY.
WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS
LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 3 TO
5 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ266-212200-
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-
946 AM EDT TUE APR 21 2015

.REST OF TODAY...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST BY
MID AFTERNOON. SCATTERED SNOW SHOWERS. ISOLATED RAIN SHOWERS BY
MID AFTERNOON. WAVES 2 TO 4 FEET BUILDING TO 3 TO 5 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. ISOLATED RAIN SHOWERS
THROUGH MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 5 TO
8 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS THROUGH EARLY AFTERNOON...THEN SNOW SHOWERS LIKELY BY MID
AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS THROUGH MIDNIGHT...THEN SNOW SHOWERS LIKELY AFTER
MIDNIGHT. WAVES SUBSIDING TO 3 TO 6 FEET...THEN BUILDING TO 4 TO
7 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY THROUGH SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES
CALM TO 2 FEET.

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

$$

LSZ267-212200-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
946 AM EDT TUE APR 21 2015

.REST OF TODAY...WEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES 2 TO 4 FEET SUBSIDING
TO 1 TO 3 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS THROUGH EARLY AFTERNOON...THEN SNOW SHOWERS LIKELY BY MID
AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 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...THEN BUILDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.

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

$$
LSZ261-212200-
MAFOR 2115/
SUPERIOR WEST 15730 11740 11730. SCATTERED SNOW SHOWERS WITH
ISOLATED RAIN SHOWERS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS
TONIGHT. CHANCE OF SNOW SHOWERS WEDNESDAY MORNING. WAVES 2 TO 5
FEET.

SUPERIOR NORTH CENTRAL 11720 11730 15740. SCATTERED SNOW SHOWERS
THIS AFTERNOON. SCATTERED SNOW SHOWERS AFTER MIDNIGHT TONIGHT.
CHANCE OF SNOW SHOWERS WEDNESDAY MORNING. WAVES 2 TO 7 FEET.

SUPERIOR SOUTH CENTRAL 11610 12720 11730 14747. SCATTERED SNOW
SHOWERS WITH ISOLATED RAIN SHOWERS THIS AFTERNOON. ISOLATED RAIN
SHOWERS AFTER MIDNIGHT TONIGHT. WAVES 1 TO 2 FEET THIS AFTERNOON.
WAVES 2 TO 3 FEET BUILDING TO 4 TO 7 FEET TONIGHT. WAVES 5 TO 8
FEET WEDNESDAY MORNING.

SUPERIOR EAST 12620 11630 11730 14740. SCATTERED SNOW SHOWERS
THIS AFTERNOON AND AFTER MIDNIGHT TONIGHT. WAVES 1 TO 3 FEET THIS
AFTERNOON. WAVES 3 TO 7 FEET TONIGHT AND WEDNESDAY MORNING.

$$

TITUS



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