Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 220249
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
949 PM EST SAT JAN 21 2017

.SYNOPSIS...A BROAD 29.7 INCH TROUGH WILL REMAIN OVER THE
NORTHERN PLAINS AND UPPER MISSISSIPPI VALLEY TONIGHT AS 30.4 INCH
HIGH PRESSURE BUILDS ACROSS HUDSON BAY AND FAR NORTHERN QUEBEC. A
WEAK TROUGH OF 29.6 INCHES WILL LIFT NORTH AHEAD OF THE MAIN
TROUGH ACROSS THE UPPER GREAT LAKES THROUGH TONIGHT. THE TROUGH
WILL LINGER ACROSS THE REGION INTO TUESDAY AS A 29.2 INCH LOW
TRACKS FROM THE SOUTHERN PLAINS TO THE MID ATLANTIC. A 29.4 INCH
LOW ORGANIZING OVER THE CENTRAL PLAINS ON TUESDAY WILL REACH
LOWER MICHIGAN AT 29.2 INCHES WEDNESDAY MORNING. THE LOW WILL
CONTINUE NORTHEASTWARD ACROSS SOUTHERN ONTARIO ON WEDNESDAY
AFTERNOON. AN ASSOCIATED TROUGH AVERAGING 29.8 INCHES WILL LINGER
OVER THE UPPER GREAT LAKES ON THURSDAY AS A 30.2 INCH RIDGE BUILDS
OVER THE NORTHERN PLAINS.

LSZ162-221100-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
949 PM EST SAT JAN 21 2017 /849 PM CST SAT JAN 21 2017/

.REST OF TONIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. PATCHY FOG.
SCATTERED RAIN SHOWERS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET.
.SUNDAY...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST AFTER
MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM TO
2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM
TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH IN THE
AFTERNOON. PATCHY FOG. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS...POSSIBLY MIXED WITH RAIN. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. 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 1 TO 3 FEET.

$$

LSZ263-221100-
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-
949 PM EST SAT JAN 21 2017

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. PATCHY FOG. NUMEROUS RAIN SHOWERS THROUGH MIDNIGHT.
SCATTERED RAIN SHOWERS AFTER MIDNIGHT. WAVES 1 TO 3 FEET BUILDING
TO 2 TO 4 FEET.
.SUNDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH IN THE
AFTERNOON. A CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE. PATCHY FOG AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF RAIN
SHOWERS IN THE MORNING. PATCHY FOG. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT. PATCHY FOG. WAVES CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 5 TO 15 KNOTS. PATCHY FOG. WAVES CALM
TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN AND
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF RAIN AND
SNOW SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST. A
CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FEET.

$$

LSZ264-221100-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
949 PM EST SAT JAN 21 2017

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS. PATCHY FOG.
NUMEROUS RAIN SHOWERS THROUGH MIDNIGHT. SCATTERED RAIN SHOWERS
AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A
SLIGHT CHANCE OF DRIZZLE. WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS BACKING EAST IN THE AFTERNOON.
PATCHY FOG. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES CALM TO
2 FEET.
.MONDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT. PATCHY FOG IN THE EVENING. WAVES CALM TO 2 FEET.
.TUESDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY...
THEN A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ265-221100-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
949 PM EST SAT JAN 21 2017

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. PATCHY FOG. SCATTERED RAIN SHOWERS.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 5 TO 15 KNOTS. PATCHY FOG IN THE MORNING. A
SLIGHT CHANCE OF RAIN. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE IN THE EVENING. PATCHY FOG.
WAVES CALM TO 2 FEET.
.MONDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTH IN THE
AFTERNOON. PATCHY FOG. A SLIGHT CHANCE OF RAIN SHOWERS. WAVES
CALM TO 2 FEET.
.MONDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTHWEST
AFTER MIDNIGHT. PATCHY FOG. A CHANCE OF RAIN SHOWERS. WAVES CALM
TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. RAIN SHOWERS AND SNOW SHOWERS LIKELY. WAVES BUILDING TO
2 TO 4 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY.
WAVES 2 TO 4 FEET.

$$

LSZ266-221100-
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-
949 PM EST SAT JAN 21 2017

.REST OF TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. PATCHY FOG. SCATTERED RAIN SHOWERS. WAVES 3 TO
5 FEET SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF RAIN. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS. PATCHY FOG. A
SLIGHT CHANCE OF DRIZZLE. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS IN THE AFTERNOON. PATCHY FOG IN THE MORNING. A CHANCE OF
RAIN SHOWERS. A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES
CALM TO 2 FEET.
.MONDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST 5 TO
15 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE EVENING. RAIN
SHOWERS LIKELY. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
CALM TO 2 FEET.
.TUESDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW IN THE MORNING. WAVES CALM TO
2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH
AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. A CHANCE OF RAIN SHOWERS.
SNOW SHOWERS LIKELY. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTH WINDS 20 TO 30 KNOTS BACKING NORTHWEST. SNOW
SHOWERS LIKELY. WAVES 3 TO 6 FEET.

$$

LSZ267-221100-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
949 PM EST SAT JAN 21 2017

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG.
SCATTERED RAIN SHOWERS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO
3 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
DRIZZLE. A CHANCE OF RAIN AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST IN THE
AFTERNOON. A CHANCE OF RAIN SHOWERS IN THE MORNING...THEN RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW AND SLEET. WAVES CALM TO 2
FEET.
.MONDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. A CHANCE OF SLEET IN THE EVENING. RAIN SHOWERS LIKELY...
POSSIBLY MIXED WITH SNOW. WAVES CALM TO 2 FEET.
.TUESDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. PATCHY FOG IN THE MORNING. A CHANCE OF SNOW SHOWERS IN
THE MORNING. A CHANCE OF RAIN SHOWERS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT.
WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN AND
SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. SNOW SHOWERS LIKELY. WAVES 3 TO 6 FEET.

$$
LSZ261-221100-
MAFOR 2204/
SUPERIOR WEST 13120 11110 12810 11800 11700. SCATTERED RAIN
SHOWERS. PATCHY FOG THROUGH SUNDAY AFTERNOON. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 12226 12220 13210 11300. PATCHY FOG.
SCATTERED RAIN SHOWERS. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 12210 11300 14400 11400. PATCHY FOG.
SCATTERED RAIN SHOWERS LATE THIS EVENING. WAVES 1 TO 4 FEET.

SUPERIOR EAST 11220 12320 14310 11310. PATCHY FOG. SCATTERED RAIN
SHOWERS. WAVES 1 TO 4 FEET.

$$

KLUBER


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