Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 242051
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
351 PM EST TUE JAN 24 2017

.SYNOPSIS...A 29.4 INCH LOW PRESSURE SYSTEM OVER THE CENTRAL
PLAINS WILL MOVE OVER LOWER MICHIGAN ON WEDNESDAY. THIS LOW WILL
MERGE WITH A SECOND AREA OF LOW PRESSURE OVER QUEBEC ON THURSDAY
WHILE DEEPENING TO 29.2 INCHES. THIS WILL KEEP A LOW PRESSURE
TROUGH AVERAGING 29.8 INCHES OVER THE UPPER GREAT LAKES THURSDAY
NIGHT. THE TROUGH WILL WEAKEN ON FRIDAY AS A WEAK RIDGE AXIS
PUSHES INTO THE AREA TO THE EAST OF A SPRAWLING 30.7 INCH HIGH
PRESSURE OVER THE NORTHERN ROCKIES. THEN ANOTHER 29.7 INCH TROUGH
WILL MOVE ACROSS THE UPPER GREAT LAKES ON FRIDAY NIGHT INTO
SATURDAY. SUNDAY...A BRIEF 30.1 INCH RIDGE WILL SLIDE ACROSS THE
UPPER GREAT LAKES.

LSZ162-250500-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
351 PM EST TUE JAN 24 2017 /251 PM CST TUE JAN 24 2017/

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

$$

LSZ263-250500-
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-
351 PM EST TUE JAN 24 2017

.LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF DRIZZLE
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE OF
FREEZING DRIZZLE IN THE MORNING. A CHANCE OF DRIZZLE. A CHANCE OF
SNOW SHOWERS IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
2 TO 4 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 3 TO 5 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 3 TO 5 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO
3 TO 5 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ264-250500-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
351 PM EST TUE JAN 24 2017

.LATE THIS AFTERNOON...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2
FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF DRIZZLE
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF DRIZZLE. A CHANCE OF SNOW
SHOWERS IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
EVENING. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 3 TO
5 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS IN THE EVENING...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT.
WAVES 3 TO 6 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH. SNOW
SHOWERS LIKELY. FREEZING SPRAY. WAVES 3 TO 6 FEET.
.SUNDAY...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY...THEN A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ265-250500-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
351 PM EST TUE JAN 24 2017

.LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF DRIZZLE AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF DRIZZLE AND A SLIGHT
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS IN THE EVENING.
A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 3 TO 6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES 3 TO 5 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES 3 TO 5 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS IN THE EVENING...THEN SNOW SHOWERS LIKELY. WAVES 3 TO 6
FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH 15 TO
25 KNOTS. SNOW SHOWERS. FREEZING SPRAY. WAVES 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS...THEN A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.


$$

LSZ266-250500-
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-
351 PM EST TUE JAN 24 2017

.LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO 20
KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF DRIZZLE AND SNOW SHOWERS.
WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES
TO 35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO
7 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS
LIKELY. WAVES 4 TO 7 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS VEERING NORTH. SNOW
SHOWERS. FREEZING SPRAY. WAVES SUBSIDING TO 3 TO 6 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. FREEZING
SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.

$$

LSZ267-250500-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
351 PM EST TUE JAN 24 2017

.LATE THIS AFTERNOON...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF DRIZZLE. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF DRIZZLE. A
CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES
TO 35 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS BACKING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SNOW
SHOWERS LIKELY. WAVES 3 TO 6 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS
LIKELY IN THE EVENING...THEN A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. SNOW
SHOWERS LIKELY. WAVES 3 TO 5 FEET.
.SUNDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. SNOW
SHOWERS LIKELY...THEN A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING
TO 2 TO 4 FEET.

$$

LSZ261-250500-
MAFOR 2422/
SUPERIOR WEST 11700 11810 12110 12120 12820. WAVES 3 FEET OR
LESS.

SUPERIOR NORTH CENTRAL 11700 11810 11800 11810 13820 11830.
CHANCE OF DRIZZLE WEDNESDAY. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 13700 13810 12820. CHANCE OF DRIZZLE LATE
TONIGHT AND WEDNESDAY. WAVES 3 FEET OR LESS.

SUPERIOR EAST 11700 11710 12800 12810 11110 11820. CHANCE OF
DRIZZLE WEDNESDAY. WAVES 2 FEET OR LESS.

$$

KLUBER



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