Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | 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 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

000
FZUS63 KMQT 270135
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
935 PM EDT SAT JUL 26 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A TROUGH OF LOW PRESSURE AVERAGING 29.7 INCHES ACROSS
THE UPPER GREAT LAKES WILL REACH THE EASTERN GREAT LAKES ON SUNDAY
EVENING AT 29.6 INCHES...BEFORE DEEPENING TO 29.5 INCHES MONDAY NIGHT
ACROSS NEW ENGLAND. IN THE MEANTIME...LOOK FOR 30.2 INCH HIGH
PRESSURE ACROSS SOUTH CENTRAL CANADA AND THE NORTHERN PLAINS SUNDAY
NIGHT. IT WILL WEAKEN TO 30.1 INCHES TUESDAY THROUGH THURSDAY WHILE A
WEAK 29.9 INCH TROUGH OF LOW PRESSURE DIPS ACROSS ONTARIO MONDAY
NIGHT...AND LAKE SUPERIOR ON TUESDAY. A BROAD LOW PRESSURE OF 29.8
INCHES WILL REMAIN CENTERED NEAR JAMES BAY THROUGH THURSDAY.

LSZ162-270945-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
935 PM EDT SAT JUL 26 2014 /835 PM CDT SAT JUL 26 2014/

.REST OF TONIGHT...SOUTH WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. SCATTERED SHOWERS AND THUNDERSTORMS. PATCHY FOG
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON.
SCATTERED SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO
2 TO 4 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-270945-
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-
935 PM EDT SAT JUL 26 2014

.REST OF TONIGHT...EAST WINDS LESS THAN 10 KNOTS INCREASING TO
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. SCATTERED SHOWERS
BECOMING NUMEROUS AFTER MIDNIGHT. SCATTERED THUNDERSTORMS. WAVES
CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON.
NUMEROUS SHOWERS THROUGH EARLY AFTERNOON....THEN ISOLATED SHOWERS.
WAVES BUILDING TO 3 TO 6 FEET...THEN SUBSIDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST. WAVES
CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ264-270945-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
935 PM EDT SAT JUL 26 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT SUNDAY...

.REST OF TONIGHT...EAST WINDS LESS THAN 10 KNOTS INCREASING TO
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF DENSE FOG. SCATTERED
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. NUMEROUS RAIN
SHOWERS AND ISOLATED THUNDERSTORMS THROUGH EARLY AFTERNOON...THEN
ISOLATED RAIN SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...SOUTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ265-270945-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
935 PM EDT SAT JUL 26 2014

.REST OF TONIGHT...EAST WINDS LESS THAN 10 KNOTS INCREASING TO
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF FOG. SCATTERED SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO 20 KNOTS
BY MID AFTERNOON. AREAS OF DENSE FOG THROUGH EARLY AFTERNOON.
NUMEROUS SHOWERS THROUGH EARLY AFTERNOON. SCATTERED THUNDERSTORMS.
SCATTERED SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES CALM
TO 2 FEET.
.THURSDAY...SOUTHEAST WINDS 5 TO 15 KNOTS VEERING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ266-270945-
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-
935 PM EDT SAT JUL 26 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT SUNDAY...

.REST OF TONIGHT...NORTHWEST WINDS LESS THAN 10 KNOTS BECOMING
EAST 5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF DENSE FOG. SCATTERED
RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. AREAS OF DENSE FOG THROUGH EARLY
AFTERNOON. SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES
BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...NORTH WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES 2 TO 4 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST.
WAVES CALM TO 2 FEET.
.THURSDAY...SOUTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ267-270945-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
935 PM EDT SAT JUL 26 2014

...DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EDT SUNDAY...

.REST OF TONIGHT...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH
LESS THAN 10 KNOTS AFTER MIDNIGHT. AREAS OF DENSE FOG. ISOLATED
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.SUNDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY DENSE FOG THROUGH EARLY AFTERNOON.
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES CALM TO
2 FEET.
.SUNDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.MONDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING WEST. WAVES
CALM TO 2 FEET.
.THURSDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTH. WAVES CALM TO
2 FEET.

$$
LSZ261-270945-
MAFOR 2703/
SUPERIOR WEST 11300 11213 11110 11120 12130 11810 11600. NUMEROUS
RAIN SHOWERS AND THUNDERSTORMS LATE THIS EVENING THEN SCATTERED RAIN
SHOWERS AND THUNDERSTORMS OVERNIGHT. PATCHY FOG IN THE MORNING.
CHANCE OF THUNDERSTORMS SUNDAY MORNING. CHANCE OF RAIN SHOWERS
SUNDAY. WAVES 2 FEET OR LESS OVERNIGHT...BUILDING TO 1 TO 5 FEET
SUNDAY.

SUPERIOR NORTH CENTRAL...DENSE FOG ADVISORY IN EFFECT...11204 11214
11216 11126 11130 13820. SCATTERED RAIN SHOWERS AND THUNDERSTORMS
OVERNIGHT. AREAS OF DENSE FOG SUNDAY MORNING. CHANCE OF RAIN SHOWERS
SUNDAY AFTERNOON. WAVES CALM TO 4 FEET.

SUPERIOR SOUTH CENTRAL...DENSE FOG ADVISORY IN EFFECT...11200 12204
11206 11116 11120 12820. SCATTERED RAIN SHOWERS AND THUNDERSTORMS
OVERNIGHT. AREAS OF DENSE FOG SUNDAY MORNING. SLIGHT CHANCE OF
THUNDERSTORMS SUNDAY. ISOLATED RAIN SHOWERS SUNDAY EVENING. WAVES
CALM TO 4 FEET.

SUPERIOR EAST...DENSE FOG ADVISORY IN EFFECT...11704 11804 12104
11110 11120 11820 11830. ISOLATED RAIN SHOWERS AND THUNDERSTORMS
OVERNIGHT. PATCHY DENSE FOG SUNDAY MORNING. CHANCE OF RAIN SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS SUNDAY. ISOLATED RAIN SHOWERS
SUNDAY EVENING. WAVES CALM TO 3 FEET.

$$

PETRO




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