Great Lakes Forecast
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000
FZUS63 KMQT 180909
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
409 AM EST TUE NOV 18 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.3 INCH LOW PRESSURE CENTER JUST TO THE SOUTH OF
JAMES BAY WILL LIFT NORTHEAST THROUGH QUEBEC TODAY WHILE DEEPENING
TO 28.9 INCHES. MEANWHILE...A 29.5 INCH TROUGH STRETCHING SOUTHWEST
OVER FAR EASTERN UPPER MICHIGAN WILL SLIDE EAST ACROSS LAKE HURON.
BEHIND THIS TROUGH...A 29.8 INCH RIDGE WILL BRIEFLY MOVE OVER LAKE
SUPERIOR LATE THIS AFTERNOON AND THIS EVENING. ANOTHER TROUGH OF LOW
PRESSURE AVERAGING 29.7 INCHES OVER NORTHERN MANITOBA TODAY WILL
SLIDE ACROSS THE UPPER GREAT LAKES LATE TONIGHT THROUGH
WEDNESDAY...BEFORE EXITING ACROSS THE ONTARIO AND QUEBEC BORDER AT
29.4 INCHES THURSDAY MORNING. 30.3 INCH HIGH PRESSURE OVER THE
NORTHERN PLAINS ON THURSDAY WILL DIVE ACROSS THE OHIO VALLEY LATE
FRIDAY...EXTENDING A 30.2 INCH RIDGE OVER THE UPPER GREAT LAKES ON
FRIDAY. A LOW PRESSURE SYSTEM AVERAGING 29.5 INCHES OVER MANITOBA ON
SATURDAY WILL SHIFT SLOWLY TO EAST ALLOWING THE RIDGE TO WEAKEN TO
29.9 INCHES ACROSS LAKE SUPERIOR.

LSZ162-181715-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
409 AM EST TUE NOV 18 2014 /309 AM CST TUE NOV 18 2014/

.EARLY THIS MORNING...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING
SPRAY. ISOLATED SNOW SHOWERS. WAVES 4 TO 8 FEET.
.TODAY...NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST IN THE
AFTERNOON. FREEZING SPRAY IN THE MORNING. ISOLATED SNOW SHOWERS.
WAVES SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING
SPRAY. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO
8 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES BUILDING TO 4 TO 7 FEET.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. WAVES
SUBSIDING TO 1 TO 3 FEET.

$$

LSZ263-181715-
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-
409 AM EST TUE NOV 18 2014

...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING...

.EARLY THIS MORNING...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES 8 TO 11 FEET.
.TODAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING.
SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO
7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY IN THE MORNING...
THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES SUBSIDING
TO 3 TO 5 FEET...THEN BUILDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING
SPRAY. SNOW SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 5 TO 9 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS IN THE MORNING. SNOW SHOWERS LIKELY IN THE AFTERNOON.
WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 5 TO
8 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ264-181715-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
409 AM EST TUE NOV 18 2014

...GALE WARNING IN EFFECT UNTIL 9 AM EST THIS MORNING...

.EARLY THIS MORNING...NORTHWEST GALES TO 40 KNOTS. FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES 10 TO 14 FEET SUBSIDING TO
9 TO 12 FEET.
.TODAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
BY LATE MORNING AND THEN TO 15 TO 25 KNOTS IN THE AFTERNOON. FREEZING
SPRAY. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET...THEN BUILDING TO 3 TO 6 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SNOW
SHOWERS LIKELY IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET...
THEN BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY
AFTER MIDNIGHT. WAVES BUILDING TO 7 TO 10 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES BUILDING TO 8 TO 11 FEET...THEN SUBSIDING TO 4 TO
7 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS
LIKELY IN THE EVENING. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT.
WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 2 TO
4 FEET...THEN BUILDING TO 5 TO 8 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ265-181715-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
409 AM EST TUE NOV 18 2014

...GALE WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.EARLY THIS MORNING...NORTHWEST GALES TO 40 KNOTS. FREEZING
SPRAY. NUMEROUS SNOW SHOWERS. WAVES 10 TO 14 FEET SUBSIDING TO
9 TO 12 FEET.
.TODAY...NORTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO 30 KNOTS
IN THE AFTERNOON. FREEZING SPRAY. NUMEROUS SNOW SHOWERS IN THE
MORNING. SCATTERED SNOW SHOWERS IN THE AFTERNOON. WAVES SUBSIDING
TO 4 TO 7 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING...THEN SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST
GALES TO 35 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY
AFTER MIDNIGHT. WAVES BUILDING TO 6 TO 9 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. FREEZING SPRAY.
SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING
TO 3 TO 6 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-181715-
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-
409 AM EST TUE NOV 18 2014

...GALE WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.EARLY THIS MORNING...NORTHWEST GALES TO 40 KNOTS. FREEZING
SPRAY. SNOW SHOWERS. WAVES 10 TO 14 FEET.
.TODAY...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS. WAVES
SUBSIDING TO 7 TO 10 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE EVENING...
THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. FREEZING SPRAY
AFTER MIDNIGHT. WAVES SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING...THEN SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 7 TO 10 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES BUILDING TO 8 TO 11 FEET...THEN SUBSIDING TO 6 TO
9 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY.
SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET...THEN BUILDING
TO 6 TO 9 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 2 TO 4 FEET.

$$

LSZ267-181715-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
409 AM EST TUE NOV 18 2014

...GALE WARNING IN EFFECT UNTIL 1 PM EST THIS AFTERNOON...

.EARLY THIS MORNING...NORTHWEST GALES TO 35 KNOTS. FREEZING
SPRAY. SNOW SHOWERS. WAVES 9 TO 12 FEET.
.TODAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS
IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW SHOWERS. WAVES
BUILDING TO 10 TO 14 FEET...THEN SUBSIDING TO 7 TO 10 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS BACKING SOUTHWEST AFTER
MIDNIGHT. SNOW SHOWERS IN THE EVENING...THEN A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. FREEZING SPRAY AFTER MIDNIGHT. WAVES
SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING...THEN SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO
1 TO 3 FEET...THEN BUILDING TO 6 TO 9 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES BUILDING TO 8 TO
11 FEET...THEN SUBSIDING TO 6 TO 9 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING.
SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. SNOW
SHOWERS LIKELY...THEN A CHANCE OF SNOW. WAVES SUBSIDING TO 3 TO
5 FEET...THEN BUILDING TO 5 TO 8 FEET.
.SATURDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 2 TO 4 FEET.

$$

LSZ261-181715-
MAFOR 1810/
SUPERIOR WEST 12740 11730 12630 11640 11540 11530. FREEZING SPRAY
THIS MORNING. ISOLATED SNOW SHOWERS TODAY. CHANCE OF SNOW SHOWERS
TONIGHT. WAVES 6 TO 9 FEET SUBSIDING TO 3 TO 6 FEET LATE TODAY AND
TONIGHT.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...12750 11740 11730
12630 11620 11630. FREEZING SPRAY TODAY. SCATTERED SNOW SHOWERS TODAY.
CHANCE OF SNOW SHOWERS TONIGHT. WAVES 9 TO 12 FEET SUBSIDING TO 3 TO
7 FEET LATE TODAY AND TONIGHT.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...12757 11747 11740
11647 12640 11530. FREEZING SPRAY THROUGH THIS EVENING. SNOW SHOWERS
TODAY. CHANCE OF SNOW SHOWERS TONIGHT. WAVES 10 TO 14 FEET TODAY
SUBSIDING TO 4 TO 8 FEET TONIGHT.

SUPERIOR EAST...GALE WARNING IN EFFECT...12757 13747 11637 11647
11547. FREEZING SPRAY THROUGH THIS MORNING AND AGAIN LATE TONIGHT.
SNOW SHOWERS. WAVES 10 TO 13 FEET TODAY SUBSIDING TO 5 TO 9 FEET
TONIGHT.

$$

KC





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