Great Lakes Forecast
Issued by NWS

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FZUS63 KMQT 260125
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
925 PM EDT MON APR 25 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...LOW PRESSURE OF 29.6 INCHES OVER SOUTHERN WISCONSIN WILL
WEAKEN TO 29.7 INCHES AS IT REACHES LOWER MICHIGAN TONIGHT WHILE HIGH
PRESSURE OF 30.4 INCHES PERSISTS ACROSS HUDSON BAY. AS THE LOW MOVES
TO THE MID ATLANTIC COAST BY TUESDAY AFTERNOON...THE HIGH OVER HUDSON
BAY WILL PUSH A RIDGE AVERAGING 30.2 INCHES OVER THE UPPER GREAT
LAKES REGION. AS THE HIGH BUILDS TO 30.5 INCHES OVER HUDSON BAY
THROUGH FRIDAY...EXPECT THE RIDGE TO REMAIN NEARLY STATIONARY OVER
THE UPPER GREAT LAKES AND STRENGTHEN TO 30.4 INCHES ON SATURDAY
AFTERNOON. A 29.5 INCH LOW WILL THEN DEVELOP OVER THE SOUTHERN PLAINS
ON SUNDAY.

LSZ162-260930-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
925 PM EDT MON APR 25 2016 /825 PM CDT MON APR 25 2016/

...GALE WARNING IN EFFECT UNTIL 1 AM EDT /MIDNIGHT CDT/ TUESDAY...

.REST OF TONIGHT...NORTHEAST GALES TO 35 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW...POSSIBLY MIXED
WITH RAIN. WAVES 8 TO 11 FEET SUBSIDING TO 3 TO 6 FEET.
.TUESDAY...NORTHEAST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES 3 TO 6 FEET.
.TUESDAY NIGHT...EAST WINDS 10 TO 20 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.

$$

LSZ263-260930-
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-
925 PM EDT MON APR 25 2016

...GALE WARNING IN EFFECT UNTIL 1 AM EDT TUESDAY...

.REST OF TONIGHT...EAST GALES TO 35 KNOTS BECOMING NORTHEAST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF THROUGH MIDNIGHT...THEN A
CHANCE OF SNOW. WAVES 7 TO 10 FEET SUBSIDING TO 3 TO 6 FEET.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES 3 TO 6 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.

$$

LSZ264-260930-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
925 PM EDT MON APR 25 2016

.REST OF TONIGHT...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES 3 TO 6 FEET.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.

$$

LSZ265-260930-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
925 PM EDT MON APR 25 2016

.REST OF TONIGHT...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. A FEW GALE FORCE GUSTS TO 35 KNOTS THROUGH
MIDNIGHT. PATCHY FOG THROUGH MIDNIGHT. SNOW LIKELY...POSSIBLY MIXED
WITH RAIN THROUGH MIDNIGHT...THEN A CHANCE OF SNOW. WAVES 4 TO 7 FEET
SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. WAVES CALM
TO 2 FEET.
.SATURDAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ266-260930-
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-
925 PM EDT MON APR 25 2016

.REST OF TONIGHT...EAST WINDS 20 TO 30 KNOTS DIMINISHING 15 TO 25
KNOTS OVERNIGHT. PATCHY FOG THROUGH MIDNIGHT. A CHANCE OF
SNOW...POSSIBLY MIXED WITH RAIN THROUGH MIDNIGHT. WAVES 3 TO 6 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.

$$

LSZ267-260930-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
925 PM EDT MON APR 25 2016

.REST OF TONIGHT...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. PATCHY FOG. SNOW LIKELY...POSSIBLY MIXED WITH
RAIN THROUGH MIDNIGHT...THEN A CHANCE OF SNOW. WAVES 1 TO 3 FEET
BUILDING TO 3 TO 5 FEET.
.TUESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING
TO 1 TO 3 FEET.
.WEDNESDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING EAST. WAVES
BUILDING TO 1 TO 3 FEET.

$$
LSZ261-260930-
MAFOR 2603/
SUPERIOR WEST...GALE WARNING IN EFFECT...11150 11140 14130 11120
11220. CHANCE OF SNOW AND SLIGHT CHANCE OF RAIN THROUGH MIDNIGHT.
WAVES 7 TO 11 FEET SUBSIDING TO 3 TO 7 FEET OVERNIGHT THROUGH TUESDAY
EVENING.

SUPERIOR NORTH CENTRAL 14130 12120 11110 11810. PATCHY FOG THROUGH
MIDNIGHT. CHANCE OF SNOW THROUGH MIDNIGHT. WAVES 1 TO 6 FEET.

SUPERIOR SOUTH CENTRAL 11237 12220 12120 11110 12810. PATCHY FOG
THROUGH MIDNIGHT. CHANCE OF SNOW OVERNIGHT. WAVES 2 TO 6 FEET.

SUPERIOR EAST 11230 13130 11120 13810. PATCHY FOG THROUGH MIDNIGHT.
CHANCE OF SNOW THROUGH MIDNIGHT. WAVES 1 TO 5 FEET.

$$

KEC



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