Great Lakes Forecast
Issued by NWS

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258
FZUS63 KMQT 232054
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
354 PM EST MON JAN 23 2017

.SYNOPSIS...EXPECT A LOW PRESSURE TROUGH AVERAGING 29.8 INCHES TO
LINGER OVER THE NORTHWEST GREAT LAKES INTO TUESDAY MORNING. A 29.3
INCH LOW PRESSURE DEVELOPING OVER THE CENTRAL PLAINS THIS EVENING
WILL THEN REACH LOWER MICHIGAN ON WEDNESDAY. ALTHOUGH THIS LOW WILL
DISSIPATE ON THURSDAY AS IT MOVES INTO QUEBEC...A LOW PRESSURE
TROUGH AVERAGING 29.8 INCHES WILL LINGER OVER THE UPPER GREAT LAKES
TO THE EAST OF A 30.4 INCH HIGH PRESSURE RIDGE BUILDING INTO THE
WESTERN PLAINS. THE TROUGH OVER THE UPPER GREAT LAKES ON FRIDAY AND
SATURDAY WILL WEAKEN TO 29.9 INCHES AS THE PLAINS HIGH PRESSURE
SHIFTS TOWARD THE LOWER MISSISSIPPI RIVER VALLEY ON SUNDAY.

LSZ162-240500-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
354 PM EST MON JAN 23 2017 /254 PM CST MON JAN 23 2017/

.LATE THIS AFTERNOON...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW
SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES BUILDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. A 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 VEERING NORTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES 2 TO 4 FEET.
.SATURDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH. A
CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FEET.

$$

LSZ263-240500-
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-
354 PM EST MON JAN 23 2017

.LATE THIS AFTERNOON...WEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF DRIZZLE. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF DRIZZLE
IN THE EVENING. PATCHY FOG. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW
SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. RAIN SHOWERS LIKELY IN THE MORNING. A
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
SHOWERS IN THE EVENING. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET...THEN SUBSIDING 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 SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY.
WAVES 2 TO 4 FEET.

$$

LSZ264-240500-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
354 PM EST MON JAN 23 2017

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

$$

LSZ265-240500-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
354 PM EST MON JAN 23 2017

.LATE THIS AFTERNOON...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE IN THE EVENING. PATCHY FOG.
WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG IN THE
MORNING. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS IN THE AFTERNOON. RAIN SHOWERS AND SNOW SHOWERS LIKELY.
WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. RAIN SHOWERS AND SNOW SHOWERS LIKELY IN THE
EVENING...THEN A CHANCE OF SNOW SHOWERS...POSSIBLY MIXED WITH
RAIN AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 3 TO 5 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES 3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 2 TO
4 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.

$$

LSZ266-240500-
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-
354 PM EST MON JAN 23 2017

.LATE THIS AFTERNOON...VARIABLE WINDS LESS THAN 10 KNOTS. PATCHY
FOG. A CHANCE OF DRIZZLE. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. PATCHY FOG. A CHANCE OF DRIZZLE AND RAIN. WAVES CALM TO
2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. A SLIGHT CHANCE OF DRIZZLE
IN THE MORNING. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS IN THE AFTERNOON. SNOW SHOWERS...POSSIBLY MIXED WITH
RAIN IN THE MORNING...THEN A CHANCE OF RAIN AND SNOW SHOWERS IN
THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. A CHANCE OF RAIN
AND SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 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 DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES 3 TO 5 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY.
WAVES 3 TO 5 FEET.

$$

LSZ267-240500-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
354 PM EST MON JAN 23 2017

.LATE THIS AFTERNOON...SOUTHEAST WINDS 10 TO 20 KNOTS. PATCHY
FOG. A CHANCE OF RAIN AND DRIZZLE. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. PATCHY FOG. SNOW LIKELY IN THE EVENING.
A CHANCE OF SNOW AFTER MIDNIGHT. A CHANCE OF RAIN. WAVES CALM TO
2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG IN THE MORNING. A
CHANCE OF RAIN IN THE MORNING. A CHANCE OF DRIZZLE. WAVES CALM TO
2 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS...POSSIBLY MIXED WITH RAIN.
WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 10 TO 20 KNOTS BACKING NORTH IN THE
AFTERNOON. SNOW SHOWERS LIKELY IN THE MORNING...THEN A CHANCE OF
SNOW SHOWERS...POSSIBLY MIXED WITH RAIN IN THE AFTERNOON. WAVES
CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN
AND SNOW SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 3 TO
6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES SUBSIDING TO 2 TO 4 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY.
WAVES 2 TO 4 FEET.

$$

LSZ261-240500-
MAFOR 2322/
SUPERIOR WEST 15600 11600 11800. WAVES 1 FOOT OR LESS.

SUPERIOR NORTH CENTRAL 14600 14700. PATCHY FOG TONIGHT AND
TUESDAY MORNING. WAVES 1 FOOT OR LESS.

SUPERIOR SOUTH CENTRAL 16700. PATCHY FOG TONIGHT AND TUESDAY
MORNING. WAVES 1 FOOT OR LESS.

SUPERIOR EAST 12300 11310 11300 12200 12100. PATCHY FOG THROUGH
TUESDAY MORNING. CHANCE OF DRIZZLE AND RAIN THROUGH TUESDAY
MORNING. WAVES 1 FOOT OR LESS.

$$

KLUBER



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