Great Lakes Forecast
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000
FZUS63 KMQT 140301
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1001 PM EST MON FEB 13 2017

.SYNOPSIS...A 29.6 INCH TROUGH WILL CONTINUE MOVING ACROSS LAKE
SUPERIOR OVERNIGHT AS A 29.5 INCH LOW DROPS SOUTH INTO NORTHERN
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.

LSZ162-141115-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1001 PM EST MON FEB 13 2017 /901 PM CST MON FEB 13 2017/

.REST OF TONIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES 2 TO 4 FEET
BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 4 TO 7
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. A SLIGHT CHANCE OF SNOW SHOWERS IN THE EVENING. 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.

$$

LSZ263-141115-
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-
1001 PM EST MON FEB 13 2017

.REST OF TONIGHT...WEST WINDS 15 TO 25 KNOTS. SPRINKLES AND
FLURRIES THROUGH LATE EVENING...THEN ISOLATED SNOW SHOWERS AFTER
MIDNIGHT. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 3 TO 5 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 5 TO 8
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. A SLIGHT CHANCE OF SNOW SHOWERS IN THE EVENING.
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.

$$

LSZ264-141115-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1001 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM 7 AM EST TUESDAY THROUGH WEDNESDAY
MORNING...

.REST OF TONIGHT...WEST WINDS 20 TO 30 KNOTS. SPRINKLES LATE IN
THE EVENING...THEN SCATTERED SNOW SHOWERS. WAVES 3 TO 6 FEET
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...NORTH GALES TO 40 KNOTS. HEAVY FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 9 TO 12 FEET...THEN
SUBSIDING TO 6 TO 9 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. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
EVENING. 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.

$$

LSZ265-141115-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1001 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM 7 AM EST TUESDAY THROUGH WEDNESDAY
MORNING...

.REST OF TONIGHT...WEST WINDS 15 TO 25 KNOTS. SPRINKLES LATE IN
THE EVENING. SCATTERED SNOW SHOWERS. WAVES CALM TO 2 FEET
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS BY AFTERNOON. SNOW SHOWERS LIKELY. WAVES BUILDING TO 6
TO 9 FEET.
.TUESDAY NIGHT...NORTHWEST GALES TO 35 KNOTS VEERING NORTH AFTER
MIDNIGHT. HEAVY FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES
BUILDING TO 9 TO 12 FEET...THEN SUBSIDING TO 6 TO 9 FEET.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. HEAVY FREEZING SPRAY. SNOW SHOWERS
LIKELY IN THE MORNING. 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.

$$

LSZ266-141115-
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-
1001 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM 7 AM EST TUESDAY THROUGH WEDNESDAY
AFTERNOON...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST
AFTER MIDNIGHT. SPRINKLES LATE IN THE EVENING...THEN SCATTERED
SNOW SHOWERS. WAVES 3 TO 6 FEET BUILDING TO 4 TO 7 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY. WAVES BUILDING TO
8 TO 11 FEET.
.TUESDAY NIGHT...NORTH GALES TO 40 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 10 TO 14 FEET...THEN SUBSIDING
TO 8 TO 11 FEET.
.WEDNESDAY...NORTH GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 4 TO 7 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 1 TO 3 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.

$$

LSZ267-141115-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1001 PM EST MON FEB 13 2017

...GALE WARNING IN EFFECT FROM 7 AM EST TUESDAY THROUGH WEDNESDAY
AFTERNOON...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST
AFTER MIDNIGHT. SCATTERED RAIN SHOWERS LATE IN THE EVENING.
SCATTERED SNOW SHOWERS AFTER MIDNIGHT. WAVES 3 TO 6 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. SNOW SHOWERS LIKELY. WAVES BUILDING TO
7 TO 10 FEET.
.TUESDAY NIGHT...NORTH GALES TO 40 KNOTS. FREEZING SPRAY. A
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 10 TO 14 FEET...THEN
SUBSIDING TO 7 TO 10 FEET.
.WEDNESDAY...NORTH GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 4 TO 7 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 1 TO 3 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.

$$
LSZ261-141115-
MAFOR 1404/
SUPERIOR WEST 12630 12640 13740 11840. CHANCE OF SNOW SHOWERS
LATE TUESDAY AND TUESDAY EVENING. FREEZING SPRAY. WAVES 3 TO 7
FEET.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11640 11630
12640 12750 11851 11850. SCATTERED SNOW SHOWERS LATE OVERNIGHT
THROUGH TUESDAY EVENING. FREEZING SPRAY. WAVES 3 TO 7 FEET
OVERNIGHT BUILDING TO 7 TO 10 FEET TUESDAY. WAVES 8 TO 11 FEET
TUESDAY EVENING.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...12630 12640
11657 13757. SCATTERED SNOW SHOWERS LATE OVERNIGHT AND TUESDAY
MORNING. FREEZING SPRAY TUESDAY EVENING. WAVES 2 TO 5 FEET OVERNIGHT
BUILDING TO 6 TO 9 FEET TUESDAY. WAVES 10 TO 13 FEET TUESDAY
EVENING.

SUPERIOR EAST...GALE WARNING IN EFFECT...11530 11630 11637 12647
12757 11850. SCATTERED SNOW SHOWERS OVERNIGHT AND TUESDAY
EVENING. WAVES 3 TO 6 FEET OVERNIGHT BUILDING TO 6 TO 9 FEET
TUESDAY. WAVES 8 TO 12 FEET TUESDAY EVENING.

$$

RJT



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