Great Lakes Forecast
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000
FZUS63 KMQT 132048
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
348 PM EST MON FEB 13 2017

.SYNOPSIS...A TROUGH OF 29.6 INCHES WILL SPREAD SOUTHWARD ACROSS
LAKE SUPERIOR TONIGHT AS A 29.5 INCH LOW CONTINUES TO DROP SOUTH
INTO SOUTHERN ONTARIO. THIS LOW WILL DEEPEN TO 29.4 INCHES ON
TUESDAY AS IT TRACKS JUST EAST OF LAKE SUPERIOR...AS A 30.3 INCH
RIDGE DRIFTS EAST OF THE NORTHERN ROCKIES. TUESDAY NIGHT INTO
WEDNESDAY...THE LOW WILL TRACK OVER EASTERN PORTIONS OF THE GREAT
LAKES AS A 30.1 INCH RIDGE TRAVERSES THE NORTHERN PLAINS. THIS
RIDGE WILL WEAKEN TO 30.0 INCHES AND SHIFT OVER THE THE NORTHERN
GREAT LAKES REGION ON WEDNESDAY AS THE SURFACE LOW CONTINUES TO
TRACK OVER THE NORTHEAST. THIS RIDGE OF 30.0 INCHES WILL LINGER
ACROSS THE NORTHERN GREAT LAKES THURSDAY...THEN A TROUGH OF 29.7
INCHES WILL DROP SOUTH ON FRIDAY AHEAD OF A 29.1 INCH LOW TRACKING
ACROSS CENTRAL CANADA.

LSZ162-140500-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
348 PM EST MON FEB 13 2017 /248 PM CST MON FEB 13 2017/

.LATE THIS AFTERNOON...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES 3 TO
5 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO 2 TO
4 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. WAVES
CALM TO 2 FEET.
.SATURDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-140500-
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-
348 PM EST MON FEB 13 2017

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS. WAVES 4 TO
7 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. ISOLATED SNOW SHOWERS AFTER MIDNIGHT. WAVES
SUBSIDING TO 3 TO 6 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. OCCASIONAL GALE FORCE GUSTS TO 35 KNOTS IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO 7
FEET.
.TUESDAY NIGHT...NORTH WINDS 20 TO 30 KNOTS. OCCASIONAL GALE FORCE
GUSTS TO 35 KNOTS THROUGH MIDNIGHT. FREEZING SPRAY. A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. WAVES
CALM TO 2 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ264-140500-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
348 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY
MORNING...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS. WAVES 4 TO
7 FEET.
.TONIGHT...WEST WINDS 20 TO 30 KNOTS. SCATTERED SNOW SHOWERS.
WAVES SUBSIDING TO 3 TO 6 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. FREEZING
SPRAY IN THE AFTERNOON. WAVES BUILDING TO 7 TO 10 FEET.
.TUESDAY NIGHT...NORTH GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 5 TO 8 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS. WAVES 1 TO 3 FEET.

$$

LSZ265-140500-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
348 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY
MORNING...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO 30 KNOTS
AFTER MIDNIGHT. SCATTERED SNOW SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 3 TO 5 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. SNOW SHOWERS LIKELY. WAVES BUILDING TO 5 TO 8 FEET.
.TUESDAY NIGHT...NORTHWEST GALES TO 35 KNOTS VEERING NORTH AFTER
MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES
BUILDING TO 6 TO 10 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY IN THE MORNING.
SNOW SHOWERS LIKELY IN THE MORNING...THEN A CHANCE OF SNOW
SHOWERS IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST. WAVES
CALM TO 2 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-140500-
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-
348 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES 3 TO
6 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 20 TO
30 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING
TO 4 TO 7 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY. WAVES BUILDING TO
7 TO 10 FEET.
.TUESDAY NIGHT...NORTH GALES TO 40 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 9 TO 12 FEET...THEN SUBSIDING TO
7 TO 10 FEET.
.WEDNESDAY...NORTH GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTHEAST IN THE
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY...SOUTH WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.

$$

LSZ267-140500-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
348 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY
AFTERNOON...

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS. WAVES 2 TO
4 FEET.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. SCATTERED SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...
THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY. WAVES BUILDING TO
6 TO 9 FEET.
.TUESDAY NIGHT...NORTH GALES TO 40 KNOTS. FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 8 TO 11 FEET...THEN
SUBSIDING TO 6 TO 9 FEET.
.WEDNESDAY...NORTH GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 3 TO 6 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTH WINDS 15 TO 25 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 2 TO
4 FEET.

$$

LSZ261-140500-
MAFOR 1322/
SUPERIOR WEST 11530 13630 12640 12740. CHANCE OF SNOW SHOWERS
LATE TUESDAY. WAVES 3 TO 6 FEET.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11530 14640
11640 12750. SCATTERED SNOW SHOWERS LATE TONIGHT...THEN CHANCE OF
SNOW SHOWERS FROM LATE MORNING ON TUESDAY. FREEZING SPRAY LATE
TONIGHT. WAVES 5 TO 8 FEET.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11520 11530
12630 11650 11640 12757. SCATTERED SNOW SHOWERS LATE TONIGHT...
THEN A CHANCE OF SNOW SHOWERS TUESDAY MORNING. WAVES 1 TO 5 FEET
TONIGHT BUILDING TO 6 TO 9 FEET TUESDAY.

SUPERIOR EAST...GALE WARNING IN EFFECT...13530 11630 12647 12757.
SCATTERED SNOW SHOWERS OVERNIGHT. WAVES 3 TO 8 FEET.

$$

RJT


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