Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

000
FZUS63 KMQT 252009
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
409 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 THIS
EVENING 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.

LSZ162-260415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
409 PM EDT MON APR 25 2016 /309 PM CDT MON APR 25 2016/

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

.LATE THIS AFTERNOON...NORTHEAST GALES TO 40 KNOTS. NUMEROUS RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW. WAVES 9 TO 12 FEET.
.TONIGHT...NORTHEAST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF RAIN AND SNOW. WAVES
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.

$$

LSZ263-260415-
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-
409 PM EDT MON APR 25 2016

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

.LATE THIS AFTERNOON...EAST GALES TO 35 KNOTS. NUMEROUS RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW. WAVES 7 TO 11 FEET.
.TONIGHT...EAST GALES TO 35 KNOTS BACKING NORTHEAST 20 TO 30 KNOTS
AFTER MIDNIGHT. RAIN LIKELY...POSSIBLY MIXED WITH SNOW THROUGH
MIDNIGHT...THEN A CHANCE OF SNOW. WAVES 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.

$$

LSZ264-260415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
409 PM EDT MON APR 25 2016

.LATE THIS AFTERNOON...EAST WINDS 20 TO 30 KNOTS. NUMEROUS RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW. WAVES 4 TO 8 FEET.
.TONIGHT...EAST WINDS 20 TO 30 KNOTS BECOMING NORTHEAST 15 TO
25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW...POSSIBLY MIXED WITH RAIN
THROUGH MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO
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.

$$

LSZ265-260415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
409 PM EDT MON APR 25 2016

.LATE THIS AFTERNOON...EAST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE
GUSTS TO 35 KNOTS. RAIN SHOWERS...POSSIBLY MIXED WITH SNOW. WAVES 6
TO 9 FEET.
.TONIGHT...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. RAIN AND SNOW LIKELY THIS EVENING...THEN A
CHANCE OF SNOW. WAVES 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.

$$

LSZ266-260415-
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-
409 PM EDT MON APR 25 2016

.LATE THIS AFTERNOON...EAST WINDS 20 TO 30 KNOTS. A FEW GALE FORCE
GUSTS TO 35 KNOTS. NUMEROUS RAIN SHOWERS...POSSIBLY MIXED WITH SNOW.
WAVES 5 TO 8 FEET.
.TONIGHT...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW LIKELY...POSSIBLY MIXED WITH RAIN
THROUGH MIDNIGHT...THEN A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO
2 TO 4 FEET...THEN BUILDING TO 3 TO 5 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.

$$

LSZ267-260415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
409 PM EDT MON APR 25 2016

.LATE THIS AFTERNOON...EAST WINDS 15 TO 25 KNOTS. NUMEROUS RAIN
SHOWERS...POSSIBLY MIXED WITH SNOW. WAVES 3 TO 5 FEET SUBSIDING
TO 2 TO 4 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST AFTER
MIDNIGHT. SNOW...POSSIBLY MIXED WITH RAIN THROUGH MIDNIGHT...THEN
A CHANCE OF SNOW. WAVES SUBSIDING TO 1 TO 3 FEET...THEN 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.

$$

LSZ261-260415-
MAFOR 2521/
SUPERIOR WEST...GALE WARNING IN EFFECT...11156 11256 11150 11140
14130. CHANCE OF RAIN AND SNOW LATE THIS EVENING. WAVES 8 TO 12
FEET SUBSIDING TO 3 TO 7 FEET TONIGHT AND TUESDAY.

SUPERIOR NORTH CENTRAL 12240 14130 12120. CHANCE RAIN AND SNOW THIS
EVENING. WAVES 2 TO 7 FEET.

SUPERIOR SOUTH CENTRAL 11246 11247 11237 12220 12120 11110.
CHANCE OF SNOW AFTER MIDNIGHT TONIGHT. WAVES 3 TO 8 FEET.

SUPERIOR EAST 11236 11227 11230 13130 11120 11810. SLIGHT CHANCE
OF SNOW THROUGH EARLY EVENING. CHANCE OF SNOW AFTER MIDNIGHT
TONIGHT. WAVES 1 TO 5 FEET.

$$

KEC



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.