Great Lakes Forecast
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000
FZUS63 KMQT 190901
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
401 AM EST WED NOV 19 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A LOW PRESSURE TROUGH AVERAGING 29.7 INCHES WILL CROSS
THE UPPER GREAT LAKES THIS MORNING AND THEN MERGE WITH ANOTHER
DISTURBANCE TONIGHT...RESULTING IN A DEEPENING LOW PRESSURE TO 29.4
INCHES THAT WILL MOVE INTO SOUTHWEST QUEBEC ON THURSDAY MORNING. AS
THIS LOW TRACKS EAST THROUGH SOUTHERN QUEBEC...A 30.2 INCH HIGH
PRESSURE RIDGE IN THE PLAINS TODAY WILL DRIFT INTO THE MIDDLE
MISSISSIPPI RIVER VALLEY LATE THURSDAY AND THEN INTO THE MID ATLANTIC
STATES ON FRIDAY. A 29.4 INCH LOW PRESSURE SYSTEM IN SOUTH CENTRAL
CANADA ON SATURDAY WILL MOVE INTO QUEBEC ON SUNDAY TO THE NORTH OF A
29.3 INCH LOW PRESSURE SYSTEM DEVELOPING IN THE CENTRAL PLAINS.
EXPECT THIS LOW TO DEEPEN TO 29.1 INCHES AND MOVE NEAR LAKE MICHIGAN
BY LATE SUNDAY.

LSZ162-191715-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
401 AM EST WED NOV 19 2014 /301 AM CST WED NOV 19 2014/

.EARLY THIS MORNING...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW. WAVES 2 TO 4 FEET.
.TODAY...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO
4 TO 7 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. FREEZING SPRAY. A CHANCE
OF SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET...THEN SUBSIDING TO 4
TO 7 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.FRIDAY...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. WAVES 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES BUILDING TO 4 TO 7 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 15 TO
25 KNOTS. A CHANCE OF RAIN...POSSIBLY MIXED WITH SNOW. WAVES
BUILDING TO 2 TO 4 FEET.

$$

LSZ263-191715-
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-
401 AM EST WED NOV 19 2014

...GALE WARNING IN EFFECT FROM THIS AFTERNOON THROUGH LATE
TONIGHT...

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 4 TO 7 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. FREQUENT GALE FORCE GUSTS TO 35 KNOTS LATE
THIS AFTERNOON. SNOW LIKELY. WAVES SUBSIDING TO 2 TO 4 FEET...THEN
BUILDING TO 5 TO 8 FEET.
.TONIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 6 TO 10 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO
4 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 5 TO 8 FEET.
.SATURDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES BUILDING TO 6 TO 9 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 15 TO
25 KNOTS. A CHANCE OF RAIN. WAVES 2 TO 4 FEET.

$$

LSZ264-191715-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
401 AM EST WED NOV 19 2014

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW. WAVES 4 TO 7 FEET.
.TODAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN SNOW IN THE
AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 3 TO
5 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS BY MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS. WAVES BUILDING TO
9 TO 12 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY.
WAVES SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. FREEZING SPRAY
IN THE EVENING. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 5 TO 8 FEET.
.SATURDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW AND RAIN. WAVES BUILDING TO 6 TO 9
FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS. A CHANCE OF RAIN EARLY...THEN RAIN LIKELY. WAVES BUILDING
TO 3 TO 5 FEET.

$$

LSZ265-191715-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
401 AM EST WED NOV 19 2014

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES 3 TO
5 FEET.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN
SNOW LIKELY IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.TONIGHT...NORTHWEST GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES BUILDING TO 7 TO 10 FEET.
.THURSDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. FREEZING SPRAY.
SNOW SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.FRIDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS. A CHANCE OF RAIN...THEN RAIN LIKELY. WAVES BUILDING TO
2 TO 4 FEET.

$$

LSZ266-191715-
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-
401 AM EST WED NOV 19 2014

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. FREEZING
SPRAY. A SLIGHT CHANCE OF SNOW. WAVES 5 TO 8 FEET.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW IN THE MORNING...THEN
SNOW IN THE AFTERNOON. WAVES SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS BY MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY AFTER MIDNIGHT.
WAVES BUILDING TO 10 TO 14 FEET.
.THURSDAY...NORTH GALES TO 35 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS. WAVES
SUBSIDING TO 5 TO 8 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS.
WAVES SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY IN THE
MORNING...THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES
SUBSIDING TO 2 TO 4 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTH
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 5 TO 8 FEET.
.SATURDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW AND RAIN. WAVES BUILDING TO 7 TO 10
FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS. A CHANCE OF RAIN...THEN RAIN LIKELY. WAVES BUILDING TO 3
TO 5 FEET.

$$

LSZ267-191715-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
401 AM EST WED NOV 19 2014

.EARLY THIS MORNING...SOUTHWEST WINDS 20 TO 30 KNOTS. FREEZING
SPRAY. A SLIGHT CHANCE OF SNOW. WAVES 6 TO 9 FEET.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTH 10 TO
20 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW IN THE MORNING...THEN SNOW IN THE AFTERNOON. WAVES
SUBSIDING TO 2 TO 4 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 9 TO 12 FEET.
.THURSDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES SUBSIDING TO 6 TO
9 FEET.
.THURSDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES SUBSIDING TO
3 TO 6 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. SNOW SHOWERS IN THE MORNING...THEN A CHANCE OF SNOW
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.FRIDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING SOUTH
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES BUILDING
TO 5 TO 8 FEET.
.SATURDAY...SOUTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SNOW AND RAIN. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 15 TO
25 KNOTS. A CHANCE OF RAIN...THEN RAIN LIKELY. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.

$$

LSZ261-191715-
MAFOR 1910/
SUPERIOR WEST...GALE WARNING IN EFFECT...12527 11630 11740 12750
12740. CHANCE OF SNOW THIS AFTERNOON AND TONIGHT. FREEZING SPRAY
TONIGHT. WAVES 2 TO 6 FEET TODAY...THEN BUILDING TO 5 TO 9 FEET
TONIGHT.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...12530 11537 11517
14757. CHANCE OF SNOW THIS MORNING. FREEZING SPRAY TONIGHT. WAVES 5
TO 7 FEET SUBSIDING TO 2 TO 4 FEET TODAY...THEN BUILDING TO 8 TO 11
FEET TONIGHT.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11530 12520 11527
11647 11747 12757. CHANCE OF SNOW THIS MORNING. FREEZING SPRAY
OVERNIGHT. WAVES 1 TO 5 FEET TODAY BUILDING TO 8 TO 11 FEET TONIGHT.

SUPERIOR EAST...GALE WARNING IN EFFECT...11540 11530 11520 11427
11517 11637 12747 19757. FREEZING SPRAY THIS MORNING. CHANCE OF SNOW THIS
MORNING. WAVES 7 TO 10 FEET SUBSIDING TO 3 TO 5 FEET TODAY. WAVES 2
TO 4 FEET BUILDING TO 8 TO 11 FEET TONIGHT.

$$

SRF






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