Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 221427
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
927 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.
MEANWHILE...A 30.3 INCH HIGH PRESSURE BUILDING INTO THE WESTERN
PLAINS.

LSZ162-222230-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
927 AM EST SUN JAN 22 2017 /827 AM CST SUN JAN 22 2017/

.REST OF TODAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST IN
THE AFTERNOON. A SLIGHT CHANCE OF RAIN IN THE AFTERNOON. WAVES
1 TO 3 FEET 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.

$$

LSZ263-222230-
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-
927 AM EST SUN JAN 22 2017

.REST OF TODAY...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN.
WAVES 1 TO 3 FEET 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.

$$

LSZ264-222230-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
927 AM EST SUN JAN 22 2017

.REST OF TODAY...EAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A CHANCE
OF RAIN. WAVES 2 TO 4 FEET 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.

$$

LSZ265-222230-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
927 AM EST SUN JAN 22 2017

.REST OF TODAY...WEST WINDS LESS THAN 10 KNOTS BECOMING SOUTHWEST
5 TO 15 KNOTS IN THE AFTERNOON. PATCHY FOG. A SLIGHT CHANCE OF
RAIN IN THE AFTERNOON. WAVES 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.

$$

LSZ266-222230-
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-
927 AM EST SUN JAN 22 2017

.REST OF TODAY...SOUTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN.
PATCHY FOG IN THE AFTERNOON. WAVES 1 TO 3 FEET 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 3 TO 6 FEET.


$$

LSZ267-222230-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
927 AM EST SUN JAN 22 2017

.REST OF TODAY...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN.
WAVES 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.

$$
LSZ261-222230-
MAFOR 2216/
SUPERIOR WEST 12810 12700 14600. PATCHY FOG OVERNIGHT. WAVES 1 TO
3 FEET.

SUPERIOR NORTH CENTRAL 11210 11310 12300 11400 13500. PATCHY FOG
THIS AFTERNOON THROUGH MID MONDAY MORNING. CHANCE OF RAIN THIS
AFTERNOON. WAVES 1 TO 3 FEET.


SUPERIOR SOUTH CENTRAL 15500 12600. PATCHY FOG LATE THIS MORNING
THROUGH MID MONDAY MORNING. WAVES 2 FEET OR LESS.


SUPERIOR EAST 14300 11310 11410 12310. CHANCE OF RAIN AND DRIZZLE
THROUGH MID MONDAY MORNING...THEN CHANCE OF RAIN SHOWERS LATE
MONDAY MORNING. WAVES 1 TO 2 FEET.

$$

JS


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