Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 121456
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
956 AM EST SUN FEB 12 2017

.SYNOPSIS...A 29.8 INCH LOW PRESSURE JUST NORTHEAST OF LAKE
SUPERIOR LATE THIS MORNING WILL REACH NEW ENGLAND THIS EVENING AS
30.5 INCH HIGH PRESSURE DRIFTS ACROSS THE CENTRAL PLAINS. THIS
HIGH PRESSURE WILL SEND A 30.2 INCH RIDGE ACROSS THE UPPER GREAT
LAKES TONIGHT INTO MONDAY. A TROUGH OF 29.7 INCHES WILL MOVE OVER
LAKE SUPERIOR MONDAY NIGHT AS A LOW OF 29.4 INCHES PASSES NEAR
HUDSON BAY. THIS LOW WILL CONTINUE TO MOVE SOUTHEAST TO WESTERN
LAKE ONTARIO BY WEDNESDAY MORNING. A HIGH PRESSURE RIDGE OF 30.2
INCHES WILL MOVE ACROSS THE UPPER GREAT LAKES WEDNESDAY NIGHT AND
THURSDAY.

LSZ162-122300-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
956 AM EST SUN FEB 12 2017 /856 AM CST SUN FEB 12 2017/

...GALE WARNING IN EFFECT UNTIL 7 PM EST /6 PM CST/ THIS
EVENING...

.REST OF TODAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST BY
EARLY AFTERNOON...THEN DIMINISHING TO 20 TO 30 KNOTS LATE IN THE
AFTERNOON. WAVES 4 TO 8 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.MONDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO
2 TO 4 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH
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 DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ263-122300-
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-
956 AM EST SUN FEB 12 2017

...GALE WARNING IN EFFECT UNTIL 7 PM EST THIS EVENING...

.REST OF TODAY...NORTHWEST GALES TO 35 KNOTS. A CHANCE OF SNOW.
WAVES 5 TO 8 FEET BUILDING TO 6 TO 10 FEET.
.TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS AFTER MIDNIGHT. ISOLATED SNOW SHOWERS IN THE EVENING.
WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 6 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
6 FEET.
.TUESDAY NIGHT...NORTH GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES 3 TO 6
FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ264-122300-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
956 AM EST SUN FEB 12 2017

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO 35
KNOTS LATE. A CHANCE OF SNOW. WAVES 4 TO 7 FEET BUILDING TO 7 TO
11 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. FREEZING SPRAY IN THE EVENING. ISOLATED
SNOW SHOWERS IN THE EVENING. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 20 TO
30 KNOTS IN THE AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET...THEN
BUILDING TO 3 TO 5 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FEET.
.TUESDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE
MORNING...THEN SNOW SHOWERS LIKELY IN THE AFTERNOON. WAVES
BUILDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...NORTH GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY. WAVES BUILDING TO 4 TO 7 FEET.
.WEDNESDAY...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY...THEN A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM
TO 2 FEET.

$$

LSZ265-122300-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
956 AM EST SUN FEB 12 2017

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.REST OF TODAY...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO 35
KNOTS LATE. A CHANCE OF SNOW. FREEZING SPRAY. WAVES CALM TO 2 FEET
BUILDING TO 7 TO 10 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED SNOW SHOWERS IN THE EVENING.
FREEZING SPRAY. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST
15 TO 25 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SNOW
SHOWERS LIKELY IN THE AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY NIGHT...NORTH GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES BUILDING TO 4 TO 8 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO
1 TO 3 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS VEERING SOUTH. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ266-122300-
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-
956 AM EST SUN FEB 12 2017

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...WEST GALES TO 35 KNOTS BECOMING NORTHWEST GALES
TO 45 KNOTS BY EARLY AFTERNOON. SNOW LIKELY LATE IN THE
MORNING...THEN A CHANCE OF SNOW SHOWERS IN THE AFTERNOON. WAVES 2
TO 4 FEET BUILDING TO 11 TO 16 FEET.
.TONIGHT...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SCATTERED SNOW SHOWERS.
WAVES SUBSIDING TO 4 TO 7 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO 25 KNOTS
IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 5 FEET.
.MONDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES BUILDING
TO 3 TO 6 FEET.
.TUESDAY...WEST GALES TO 35 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SNOW
SHOWERS LIKELY IN THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...NORTH GALES TO 35 KNOTS. FREEZING SPRAY. SNOW
SHOWERS. WAVES BUILDING TO 5 TO 9 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO
1 TO 3 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ267-122300-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
956 AM EST SUN FEB 12 2017

...GALE WARNING IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING
NORTHWEST GALES TO 45 KNOTS BY EARLY AFTERNOON. SNOW LIKELY.
WAVES 1 TO 3 FEET BUILDING TO 12 TO 17 FEET.
.TONIGHT...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. FREEZING SPRAY. SCATTERED SNOW SHOWERS.
WAVES SUBSIDING TO 4 TO 7 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. ISOLATED SNOW SHOWERS IN THE MORNING. WAVES SUBSIDING
TO 1 TO 3 FEET.
.MONDAY NIGHT...SOUTH WINDS 15 TO 25 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 3 TO 5 FEET.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SNOW
SHOWERS IN THE AFTERNOON. WAVES BUILDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...NORTHWEST GALES TO 35 KNOTS VEERING NORTH AFTER
MIDNIGHT. SNOW SHOWERS LIKELY. FREEZING SPRAY AFTER MIDNIGHT.
WAVES BUILDING TO 5 TO 8 FEET.
.WEDNESDAY...NORTH WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. SNOW SHOWERS LIKELY...THEN A CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS BACKING SOUTHWEST. A
CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.

$$
LSZ261-122300-
MAFOR 1216/
SUPERIOR WEST...GALE WARNING IN EFFECT...12750 11740 11730 11720
12620 11520. WAVES 5 TO 9 FEET THIS AFTERNOON SUBSIDING TO 1 TO 3
FEET TONIGHT AND MONDAY MORNING.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...13750 11751
11741 11730 11620 11520. FREEZING SPRAY AND SCATTERED SNOW
SHOWERS THROUGH THIS EVENING. WAVES 5 TO 7 FEET BUILDING TO 7 TO
10 FEET THIS AFTERNOON. WAVES SUBSIDING TO 2 TO 5 FEET TONIGHT
MONDAY MORNING.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11760 11761
12751 12741 11720 11610. FREEZING SPRAY AND SCATTERED SNOW
SHOWERS THROUGH THIS EVENING. WAVES 4 TO 6 FEET BUILDING TO 8 TO
12 FEET THIS AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET TONIGHT.
WAVES SUBSIDING TO 1 TO 3 FEET MONDAY MORNING.

SUPERIOR EAST...GALE WARNING IN EFFECT...11657 12760 12751 11741
11731 11710. SCATTERED SNOW SHOWERS LATE THIS AFTERNOON THROUGH
THIS EVENING. FREEZING SPRAY TONIGHT. WAVES 2 TO 4 FEET BUILDING
TO 11 TO 15 FEET THIS AFTERNOON. WAVES SUBSIDING TO 6 TO 9 FEET
TONIGHT. WAVES SUBSIDING TO 2 TO 4 FEET MONDAY MORNING.

$$

KLUBER



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