Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 242024
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
324 PM EST WED DEC 24 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...29.2 INCH LOW PRESSURE OVER SOUTHERN LAKE HURON WILL
PUSH NORTH-NORTHEAST AS IT DEEPENS TO 28.7 INCHES ACROSS CENTRAL
QUEBEC BY THURSDAY AFTERNOON. A BRIEF 29.7 INCH RIDGE WILL BUILD
OVER SOUTHERN LAKE SUPERIOR THURSDAY. 29.4 INCH LOW PRESSURE ACROSS
EASTERN COLORADO THURSDAY AFTERNOON WILL SWING A 29.9 INCH TROUGH UP
ACROSS IOWA AND LAKE SUPERIOR FRIDAY...WHICH WILL SLOWLY EXIT
EASTERN LAKE SUPERIOR THROUGH LAKE MICHIGAN FRIDAY NIGHT...AND
SOUTHERN ONTARIO ON SATURDAY. LOOK FOR A SMALL TROUGH AVERAGING 30.0
INCHES TO PUSH ACROSS LAKE SUPERIOR SATURDAY NIGHT. THIS WILL BE
QUICKLY REPLACED BY A 30.4 INCH RIDGE BUILDING ACROSS LAKE SUPERIOR
ON MONDAY...EXTENDING FROM LARGE 31.0 INCH HIGH PRESSURE ACROSS MUCH
OF SOUTHWESTERN CANADA.

LSZ162-250430-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
324 PM EST WED DEC 24 2014 /224 PM CST WED DEC 24 2014/

.LATE THIS AFTERNOON...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF DRIZZLE AND SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE AND SNOW
SHOWERS IN THE EVENING. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.

$$

LSZ263-250430-
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-
324 PM EST WED DEC 24 2014

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF DRIZZLE AND SNOW SHOWERS. WAVES 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE IN THE EVENING. A SLIGHT
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE AND SNOW SHOWERS IN THE
MORNING. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW. WAVES CALM
TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET.

$$

LSZ264-250430-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
324 PM EST WED DEC 24 2014

.LATE THIS AFTERNOON...NORTH WINDS 15 TO 25 KNOTS. A SLIGHT
CHANCE OF DRIZZLE...SNOW SHOWERS AND FREEZING DRIZZLE. WAVES 2 TO
4 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE AND SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF DRIZZLE
AND SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING
TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ265-250430-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
324 PM EST WED DEC 24 2014

.LATE THIS AFTERNOON...NORTH WINDS 15 TO 25 KNOTS. A SLIGHT
CHANCE OF DRIZZLE AND SNOW SHOWERS. WAVES 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS AND A SLIGHT CHANCE OF
DRIZZLE. WAVES BUILDING TO 3 TO 6 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE AND SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS LESS THAN 10 KNOTS BECOMING NORTH 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES CALM TO
2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO
4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 2 TO 4 FEET.

$$

LSZ266-250430-
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-
324 PM EST WED DEC 24 2014

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF DRIZZLE AND SNOW SHOWERS...POSSIBLY MIXED WITH RAIN.
WAVES 2 TO 4 FEET.
.TONIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS AND A SLIGHT
CHANCE OF DRIZZLE. WAVES BUILDING TO 4 TO 7 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF DRIZZLE AND SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS LESS THAN 10 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES CALM TO
2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ267-250430-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
324 PM EST WED DEC 24 2014

.LATE THIS AFTERNOON...NORTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF
SNOW SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN IN THE EVENING.
A CHANCE OF SNOW SHOWERS AND A SLIGHT CHANCE OF DRIZZLE. WAVES
BUILDING TO 4 TO 7 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS AND A SLIGHT
CHANCE OF DRIZZLE. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING
TO 1 TO 3 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ261-250430-
MAFOR 2422/
SUPERIOR WEST 12810 11710 11620 11630 11530 12520. SLIGHT CHANCE OF
SNOW SHOWERS TONIGHT. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 12830 11820 12730 11620 12630. SLIGHT CHANCE
OF DRIZZLE...SNOW SHOWERS AND LIGHT FREEZING DRIZZLE TONIGHT. SLIGHT
CHANCE OF DRIZZLE AND SNOW SHOWERS THURSDAY. WAVES 2 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 12830 13730 12630 11520. CHANCE OF SNOW
SHOWERS AND SLIGHT CHANCE OF DRIZZLE TONIGHT. SLIGHT CHANCE OF DRIZZLE AND
SNOW SHOWERS THURSDAY MORNING. WAVES 2 TO 6 FEET.

SUPERIOR EAST 11120 11820 11830 13740 11630 11620. SLIGHT CHANCE OF
RAIN LATE THIS AFTERNOON. CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE
OF DRIZZLE TONIGHT THROUGH THURSDAY. WAVES 1 TO 6 FEET TONIGHT. WAVES 4
TO 7 FEET THURSDAY.

$$

KF





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