Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 220848
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
348 AM EST SUN JAN 22 2017

.SYNOPSIS...EXPECT A LOW PRESSURE TROUGH AVERAGING 29.7 INCHES TO
LINGER OVER THE NORTHWEST GREAT LAKES INTO TUESDAY WHILE A 29.2 INCH
LOW PRESSURE SYSTEM TRACKS FROM THE SOUTHERN PLAINS TO THE MID
ATLANTIC STATES. ANOTHER 29.4 INCH LOW PRESSURE DEVELOPING OVER THE
CENTRAL PLAINS ON TUESDAY WILL REACH LOWER MICHIGAN ON WEDNESDAY
WHILE DEEPENING TO 29.3 INCHES. AS THIS LOW SHIFTS INTO THE CANADIAN
MARITIMES ON THURSDAY...A LOW PRESSURE TROUGH AVERAGING 29.7 INCHES
WILL LINGER OVER THE UPPER GREAT LAKES TO THE EAST OF A 30.3 INCH
HIGH PRESSURE BUILDING INTO THE WESTERN PLAINS.

LSZ162-221700-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
348 AM EST SUN JAN 22 2017 /248 AM CST SUN JAN 22 2017/

.EARLY THIS MORNING...NORTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG.
A CHANCE OF DRIZZLE. WAVES 1 TO 3 FEET.
.TODAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. PATCHY FOG. A CHANCE OF DRIZZLE. WAVES SUBSIDING TO
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.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. A
CHANCE OF SNOW SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES BUILDING
TO 1 TO 3 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$

LSZ263-221700-
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-
348 AM EST SUN JAN 22 2017

.EARLY THIS MORNING...NORTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG.
RAIN AND DRIZZLE LIKELY. WAVES 2 TO 4 FEET.
.TODAY...NORTH WINDS 5 TO 15 KNOTS. PATCHY FOG. RAIN LIKELY IN
THE MORNING. A CHANCE OF DRIZZLE. WAVES SUBSIDING TO CALM TO
2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING WEST AFTER MIDNIGHT.
A SLIGHT CHANCE OF DRIZZLE. PATCHY FOG AFTER MIDNIGHT. WAVES CALM
TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH 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 2 TO
4 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.

$$

LSZ264-221700-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
348 AM EST SUN JAN 22 2017

.EARLY THIS MORNING...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A
CHANCE OF RAIN AND DRIZZLE. WAVES 2 TO 4 FEET.
.TODAY...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. RAIN LIKELY IN THE
MORNING. A CHANCE OF DRIZZLE. WAVES SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. PATCHY FOG. A SLIGHT CHANCE OF DRIZZLE. WAVES CALM TO
2 FEET.
.MONDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES BUILDING TO 3 TO
5 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.

$$

LSZ265-221700-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
348 AM EST SUN JAN 22 2017

.EARLY THIS MORNING...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG. A
SLIGHT CHANCE OF DRIZZLE. WAVES 1 TO 3 FEET.
.TODAY...WEST WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. PATCHY FOG. A SLIGHT CHANCE OF
DRIZZLE. WAVES SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG. A SLIGHT
CHANCE OF DRIZZLE. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. SNOW SHOWERS...POSSIBLY MIXED WITH RAIN SHOWERS...THEN
A CHANCE OF SNOW SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES
BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.

$$

LSZ266-221700-
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-
348 AM EST SUN JAN 22 2017

.EARLY THIS MORNING...SOUTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG.
A CHANCE OF RAIN AND A SLIGHT CHANCE OF DRIZZLE. WAVES 2 TO
4 FEET SUBSIDING TO 1 TO 3 FEET.
.TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH IN THE
AFTERNOON. PATCHY FOG. A SLIGHT CHANCE OF DRIZZLE. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG. A SLIGHT CHANCE
OF DRIZZLE. WAVES CALM TO 2 FEET.
.MONDAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN SHOWERS.
WAVES CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. RAIN SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW
SHOWERS. A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. WAVES CALM TO
2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES BUILDING TO
3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES BUILDING TO 3 TO
6 FEET.

$$

LSZ267-221700-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
348 AM EST SUN JAN 22 2017

.EARLY THIS MORNING...SOUTHEAST WINDS 10 TO 20 KNOTS. PATCHY FOG.
A CHANCE OF DRIZZLE. WAVES 1 TO 3 FEET.
.TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A SLIGHT
CHANCE OF DRIZZLE. WAVES SUBSIDING TO CALM TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF DRIZZLE. WAVES CALM TO
2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS IN THE MORNING...THEN RAIN SHOWERS LIKELY...POSSIBLY
MIXED WITH SNOW SHOWERS AND SLEET IN THE AFTERNOON. WAVES CALM TO
2 FEET.
.MONDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. SNOW SHOWERS...
POSSIBLY MIXED WITH SLEET IN THE EVENING. RAIN SHOWERS LIKELY. A
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING NORTHWEST IN
THE AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN SHOWERS. A CHANCE OF SNOW
SHOWERS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS...POSSIBLY MIXED WITH RAIN.
WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 3 TO 5 FEET.

$$

LSZ261-221700-
MAFOR 2210/
SUPERIOR WEST 14810 12700 12600. PATCHY FOG. CHANCE OF DRIZZLE
TODAY. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 13210 11310 12300 11400 11500. PATCHY FOG.
CHANCE OF RAIN THIS MORNING...THEN A CHANCE OF DRIZZLE. WAVES 1
TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11400 15500 11500. PATCHY FOG. WAVES 1 TO
3 FEET.

SUPERIOR EAST 12310 14300 11310 11410. PATCHY FOG. CHANCE OF DRIZZLE.
WAVES 1 TO 3 FEET.


$$

JLB


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