Great Lakes Forecast
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077
FZUS63 KMQT 042105
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
405 PM EST THU FEB 4 2016

.SYNOPSIS...A 30.2 INCH HIGH PRESSURE RIDGE EXTENDING FROM CENTRAL
ILLINOIS TO FAR EASTERN LAKE SUPERIOR WILL MOVE ACROSS THE LOWER
GREAT LAKES TONIGHT AS A 30.2 INCH LOW PRESSURE TROUGH TRACKS ACROSS
LAKE SUPERIOR. ANOTHER 30.3 INCH RIDGE WILL CROSS LAKE SUPERIOR ON
FRIDAY AHEAD OF ANOTHER LOW PRESSURE TROUGH OF 30.0 INCHES THAT WILL
DROP SOUTH ACROSS LAKE SUPERIOR FRIDAY NIGHT AND SATURDAY MORNING.
IN ITS WAKE...HIGH PRESSURE OF 30.3 INCHES WILL BUILD OVER NORTHERN
ONTARIO SATURDAY. AS THE HIGH SHIFTS TO QUEBEC SUNDAY...LOW PRESSURE
OF 29.8 INCHES WILL DROP INTO THE UPPER GREAT LAKES...CROSSING
WISCONSIN ON SUNDAY NIGHT BEFORE DRIFTING ACROSS LOWER MICHIGAN ON
MONDAY...AND THE LOWER GREAT LAKES ON TUESDAY. A HIGH PRESSURE RIDGE
OF 30.4 INCHES WILL BUILD INTO THE PLAINS STATES ON TUESDAY.

LSZ162-050515-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
405 PM EST THU FEB 4 2016 /305 PM CST THU FEB 4 2016/

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS IN THE
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SATURDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES 2 TO 4 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 3 TO
5 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ263-050515-
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-
405 PM EST THU FEB 4 2016

.LATE THIS AFTERNOON...WEST WINDS 10 TO 20 KNOTS. SCATTERED SNOW
SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS IN THE AFTERNOON. ISOLATED SNOW SHOWERS. WAVES SUBSIDING
TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 2 TO 4 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. SNOW LIKELY. WAVES BUILDING TO 4 TO
7 FEET.
.SUNDAY NIGHT...EAST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW.
WAVES SUBSIDING TO 3 TO 6 FEET.
.MONDAY...NORTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH GALES TO
35 KNOTS. A CHANCE OF SNOW SHOWERS. FREEZING SPRAY. WAVES
3 TO 6 FEET.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 2 TO 4 FEET.

NOTE...WAVE HEIGHT FORECASTS ARE FOR ICE FREE AREAS.

$$

LSZ264-050515-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
405 PM EST THU FEB 4 2016

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. SCATTERED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. NUMEROUS SNOW SHOWERS IN THE EVENING...
THEN SCATTERED SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO
3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE EVENING...THEN A
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO
4 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 3 TO 5 FEET.
.SUNDAY...SOUTHEAST WINDS 20 TO 30 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 6 TO 9 FEET.
.SUNDAY NIGHT...EAST WINDS 20 TO 30 KNOTS. SNOW LIKELY. WAVES
SUBSIDING TO 3 TO 6 FEET.
.MONDAY...NORTHEAST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES TO
35 KNOTS. SNOW SHOWERS. FREEZING SPRAY. WAVES 3 TO 5 FEET...THEN
BUILDING TO 5 TO 8 FEET.
.TUESDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS.
HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.

$$

LSZ265-050515-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
405 PM EST THU FEB 4 2016

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. ISOLATED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. SCATTERED SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 1 TO
3 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY IN THE MORNING...
THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.SATURDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BECOMING SOUTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 15 TO 25 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS BACKING EAST AFTER
MIDNIGHT. SNOW LIKELY. WAVES BUILDING TO 5 TO 8 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.MONDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. SNOW SHOWERS. FREEZING SPRAY. WAVES 3 TO 5 FEET...THEN
BUILDING TO 5 TO 8 FEET.
.TUESDAY...NORTH WINDS 20 TO 30 KNOTS. HEAVY FREEZING SPRAY. SNOW
SHOWERS. WAVES SUBSIDING TO 3 TO 5 FEET.

$$

LSZ266-050515-
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-
405 PM EST THU FEB 4 2016

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS. SCATTERED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS IN THE
EVENING...THEN NUMEROUS SNOW SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING.
SCATTERED SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE EVENING...THEN SNOW
SHOWERS LIKELY AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHEAST WINDS 20 TO 30 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 6 TO 9 FEET.
.SUNDAY NIGHT...SOUTHEAST WINDS 20 TO 30 KNOTS BACKING EAST AFTER
MIDNIGHT. SNOW LIKELY. WAVES SUBSIDING TO 4 TO 7 FEET.
.MONDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTH 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS. FREEZING
SPRAY. WAVES SUBSIDING TO 3 TO 5 FEET...THEN BUILDING TO 5 TO
8 FEET.
.TUESDAY...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO 30 KNOTS.
FREEZING SPRAY. SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET...
THEN SUBSIDING TO 3 TO 6 FEET.

$$

LSZ267-050515-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
405 PM EST THU FEB 4 2016

.LATE THIS AFTERNOON...SOUTHEAST WINDS 10 TO 20 KNOTS. SCATTERED
SNOW SHOWERS. WAVES CALM TO 2 FEET.
.TONIGHT...SOUTH WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS IN THE EVENING...
THEN NUMEROUS SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO
6 FEET.
.FRIDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. NUMEROUS SNOW SHOWERS IN THE MORNING...
THEN SCATTERED SNOW SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO
1 TO 3 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS WITH A FEW GALE FORCE
GUSTS TO 35 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS IN THE
EVENING...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 3 TO 5 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW SHOWERS IN THE MORNING...THEN A
CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO
4 FEET.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO
CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. SNOW LIKELY. WAVES BUILDING TO 4 TO
7 FEET.
.SUNDAY NIGHT...SOUTHEAST GALES TO 35 KNOTS. SNOW LIKELY. WAVES
BUILDING TO 5 TO 8 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.MONDAY...EAST WINDS 15 TO 25 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. A CHANCE OF SNOW SHOWERS...THEN SNOW SHOWERS LIKELY.
WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 3 TO 6 FEET.
.TUESDAY...NORTH WINDS 15 TO 25 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO
5 FEET.

$$

LSZ261-050515-
MAFOR 0422/
SUPERIOR WEST 11630 12730 12720 11710 11620 11520. SCATTERED
SNOW SHOWERS THIS EVENING. WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11527 11637 11737 13730 11720 11620.
SCATTERED SNOW SHOWERS EARLY THIS EVENING THROUGH OVERNIGHT.
WAVES 1 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 11520 11530 11640 12740 12730 11620.
SCATTERED SNOW SHOWERS FROM LATE EVENING ON TONIGHT THROUGH
FRIDAY MORNING. WAVES 1 TO 4 FEET.

SUPERIOR EAST 11410 11520 11537 11647 12747 11730 11720.
SCATTERED SNOW SHOWERS THIS EVENING AND FRIDAY AFTERNOON.
FREEZING SPRAY LATE IN THE MORNING. WAVES 1 TO 6 FEET.

$$

JS



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