Great Lakes Forecast
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000
FZUS63 KMQT 262113
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
413 PM EST FRI DEC 26 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.0 INCH TROUGH NEAR THE MACKINAC STRAITS WILL REMAIN
NEARLY STATIONARY TONIGHT...AS A 29.9 INCH LOW LIFTS NORTHEAST OUT
OF THE CENTRAL PLAINS. THIS LOW WILL CROSS THE MACKINAC STRAITS
SATURDAY AFTERNOON BEFORE MOVING INTO SOUTHERN QUEBEC AND
STRENGTHENING TO 29.7 INCHES ON SATURDAY NIGHT. BEHIND THE LOW...A
30.1 INCH RIDGE WILL MOVE OVER THE UPPER GREAT LAKES REGION. A WEAK
TROUGH OF 30.0 INCHES WILL QUICKLY MOVE ACROSS LAKE SUPERIOR ON
SUNDAY AHEAD OF A STRONG HIGH OF 31.2 INCHES BUILDING OVER ALBERTA.
THIS HIGH WILL DRIFT SOUTHEAST INTO THE NORTHERN AND CENTRAL PLAINS
BY TUESDAY AND STRETCH A 30.5 INCH RIDGE OVER THE UPPER GREAT LAKES.
ON WEDNESDAY...A 29.3 INCH LOW OVER HUDSON BAY WILL SWEEP A 29.6
INCH TROUGH ACROSS NORTHWEST ONTARIO AND INTO THE UPPER GREAT LAKES
REGION ON WEDNESDAY NIGHT.

LSZ162-270515-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
413 PM EST FRI DEC 26 2014 /313 PM CST FRI DEC 26 2014/

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO 25 KNOTS
IN THE AFTERNOON. WAVES 2 TO 4 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES 2 TO
4 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS. HEAVY FREEZING SPRAY. WAVES BUILDING TO 4 TO 7 FEET.
.WEDNESDAY...WEST WINDS 20 TO 30 KNOTS. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET...THEN
SUBSIDING TO 3 TO 5 FEET.

$$

LSZ263-270515-
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-
413 PM EST FRI DEC 26 2014

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW.
WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS VEERING NORTH IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO
4 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING
TO 3 TO 5 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES 3 TO 5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 3 TO 5 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS. A CHANCE OF SNOW SHOWERS. HEAVY FREEZING SPRAY. WAVES
BUILDING TO 6 TO 9 FEET.
.WEDNESDAY...WEST GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 10 TO 14 FEET...THEN
SUBSIDING TO 5 TO 8 FEET.

$$

LSZ264-270515-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
413 PM EST FRI DEC 26 2014

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF SNOW
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES
BUILDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KNOTS VEERING NORTH IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 3 TO
5 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST GALES TO
35 KNOTS. HEAVY FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 7 TO 10 FEET.
.WEDNESDAY...WEST GALES TO 40 KNOTS VEERING NORTHWEST. HEAVY
FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 10 TO
14 FEET...THEN SUBSIDING TO 6 TO 9 FEET.

$$

LSZ265-270515-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
413 PM EST FRI DEC 26 2014

.LATE THIS AFTERNOON...NORTH WINDS 10 TO 20 KNOTS. A SLIGHT
CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 15 TO 25 KNOTS. SNOW LIKELY IN THE
MORNING...THEN A CHANCE OF SNOW IN THE AFTERNOON. WAVES BUILDING
TO 3 TO 5 FEET.
.SATURDAY NIGHT...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 6
FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY IN
THE MORNING...THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON.
WAVES 3 TO 5 FEET.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY.
WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST GALES TO
35 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 8 FEET.
.WEDNESDAY...WEST GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 6 TO 9 FEET...THEN
SUBSIDING TO 4 TO 7 FEET.

$$

LSZ266-270515-
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-
413 PM EST FRI DEC 26 2014

.LATE THIS AFTERNOON...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF SNOW. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW. WAVES
BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW IN THE MORNING...THEN A CHANCE OF
SNOW IN THE AFTERNOON. WAVES BUILDING TO 3 TO 6 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY IN THE MORNING. A CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY.
WAVES 3 TO 5 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES 3 TO
5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS INCREASING TO
20 TO 30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES 3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST GALES TO
35 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES BUILDING TO
8 TO 11 FEET.
.WEDNESDAY...WEST GALES TO 40 KNOTS. FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS...THEN SNOW SHOWERS LIKELY. WAVES BUILDING TO 10 TO 14
FEET...THEN SUBSIDING TO 8 TO 11 FEET.

$$

LSZ267-270515-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
413 PM EST FRI DEC 26 2014

.LATE THIS AFTERNOON...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE
OF SNOW. WAVES CALM TO 2 FEET.
.TONIGHT...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF SNOW IN
THE EVENING...THEN SNOW AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. SNOW. WAVES BUILDING TO 3 TO 5 FEET.
.SATURDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS IN
THE EVENING...THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. WAVES
BUILDING TO 4 TO 8 FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS LIKELY IN
THE MORNING...THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON.
WAVES SUBSIDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 3 TO 5 FEET.
.MONDAY...NORTH WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES 3 TO 5 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. SNOW SHOWERS
LIKELY. WAVES 3 TO 6 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST GALES TO
35 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES BUILDING TO
7 TO 10 FEET.
.WEDNESDAY...WEST GALES TO 40 KNOTS. FREEZING SPRAY. SNOW SHOWERS
LIKELY. WAVES BUILDING TO 10 TO 14 FEET...THEN SUBSIDING TO 9 TO
12 FEET.

$$

LSZ261-270515-
MAFOR 2622/
SUPERIOR WEST 13810 14820 11710. SLIGHT CHANCE OF SNOW OVERNIGHT AND
SATURDAY. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 16820. SLIGHT CHANCE OF SNOW OVERNIGHT AND
SATURDAY. WAVES 2 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 13810 11820 12827 11837 11830. CHANCE OF SNOW
OVERNIGHT. WAVES 1 TO 5 FEET.

SUPERIOR EAST 13800 11810 12817 11827 11830. CHANCE OF SNOW TONIGHT AND
SATURDAY AFTERNOON. WAVES 1 TO 4 FEET.

$$

PETRO







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