Marine Weather Forecast from Environment Canada

Winds Issued 03:00 AM EDT 03 September 2010		Today Tonight and Saturday Gale warning in effect. Wind southeast 15 knots increasing to southwest 20 early this morning and to north 40 this afternoon. Wind diminishing to northwest 30 Saturday morning.		Extended Forecast Issued 03:00 AM EDT 03 September 2010 Sunday Wind northwest 25 knots diminishing to light late in the day. Monday Wind light. Tuesday Wind east 15 knots increasing to west 25 late in the day.
Waves Issued 03:00 AM EDT 03 September 2010		Today Tonight and Saturday Waves 1 metre building to 2 late this morning and to 3 to 5 late this afternoon. Waves subsiding to 2 Saturday afternoon.

 

Lake Superior Mafor Forecast and Weather Conditions
From NOAA National Weather Service Weather Forecast Office

000
FZUS63 KMQT 030110
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
910 PM EDT THU SEP 2 2010

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...DEVELOPING LOW PRESSURE OF 29.6 INCHES OVER THE
MINNESOTA ARROWHEAD WILL CROSS LAKE SUPERIOR TONIGHT AND
FRIDAY...DEEPENING TO 29.3 INCHES IN THE PROCESS. ON SATURDAY THIS
LOW WILL MOVE TOWARD THE CANADIAN MARITIMES AND CONSOLIDATE WITH THE
REMNANTS OF HURRICANE EARL. THIS BROAD AREA OF LOW PRESSURE WILL
LINGER OVER THE NORTHERN CANADIAN MARITIMES INTO SUNDAY. BY SUNDAY
NIGHT A HIGH PRESSURE RIDGE OF 29.9 INCHES WILL SETTLE IN OVER THE
UPPER GREAT LAKES AND PERSIST INTO MONDAY. ON TUESDAY...A SECOND LOW
AT 29.70 INCHES WILL BRUSH JUST NORTHWEST OF LAKE SUPERIOR.

LSZ162-030915-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
910 PM EDT THU SEP 2 2010 /810 PM CDT THU SEP 2 2010/

...GALE WARNING IN EFFECT FROM 5 AM EDT /4 AM CDT/ FRIDAY THROUGH
LATE FRIDAY NIGHT...

.REST OF TONIGHT...WEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. SHOWERS LIKELY. WAVES CALM TO 2 FEET BUILDING TO 4 TO
7 FEET.
.FRIDAY...NORTHWEST GALES TO 35 KNOTS. A CHANCE OF SHOWERS. WAVES
BUILDING TO 9 TO 12 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A SLIGHT CHANCE
OF SHOWERS. WAVES SUBSIDING TO 5 TO 8 FEET.
.SATURDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES 2 TO
4 FEET.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTHEAST AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.MONDAY...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING
TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO 4 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO CALM TO 2 FEET.

$$

LSZ263-030915-
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-
910 PM EDT THU SEP 2 2010

...GALE WARNING IN EFFECT FROM 5 AM EDT FRIDAY THROUGH LATE
FRIDAY NIGHT...

.REST OF TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST
20 TO 30 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES 2 TO 4 FEET BUILDING TO 5 TO 8 FEET.
.FRIDAY...WEST GALES TO 35 KNOTS BECOMING NORTH GALES TO 45 KNOTS
BY MID AFTERNOON. SHOWERS LIKELY THROUGH EARLY AFTERNOON...THEN A
CHANCE OF SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 10 TO
14 FEET.
.FRIDAY NIGHT...NORTHWEST GALES TO 40 KNOTS. A CHANCE OF SHOWERS.
WAVES BUILDING TO 12 TO 17 FEET...THEN SUBSIDING TO 10 TO
14 FEET.
.SATURDAY...NORTHWEST WINDS TO 30 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 5 TO 8 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING
TO 4 TO 7 FEET.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO
20 KNOTS BY MID AFTERNOON. WAVES 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...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES BUILDING TO 3 TO 5 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A
CHANCE OF SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING
TO 1 TO 3 FEET.

$$

LSZ264-030915-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
910 PM EDT THU SEP 2 2010

...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH SATURDAY...

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
15 TO 25 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES 3 TO 5 FEET BUILDING TO 4 TO 7 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES TO
40 KNOTS BY MID AFTERNOON. SHOWERS LIKELY. WAVES BUILDING TO
11 TO 15 FEET.
.FRIDAY NIGHT...NORTHWEST GALES TO 40 KNOTS WITH STORM FORCE GUSTS UP TO
50 KNOTS. SHOWERS LIKELY THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 15 TO 20 FEET...THEN SUBSIDING TO
11 TO 15 FEET.
.SATURDAY...NORTHWEST GALES TO 35 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 8 TO 11 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. WAVES SUBSIDING
TO 5 TO 8 FEET.
.SUNDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTH AFTER
MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING EAST 15 TO 25 KNOTS.
A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 3 TO 5 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS BECOMING NORTH 10 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...
THEN SUBSIDING TO 1 TO 3 FEET.

$$

LSZ265-030915-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
910 PM EDT THU SEP 2 2010

...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY...

.REST OF TONIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS AFTER
MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET.
.FRIDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST GALES TO
40 KNOTS BY MID AFTERNOON. SHOWERS. WAVES BUILDING TO 7 TO 10 FEET.
.FRIDAY NIGHT...NORTHWEST GALES TO 45 KNOTS. SHOWERS LIKELY
THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS AFTER MIDNIGHT. WAVES
BUILDING TO 15 TO 20 FEET...THEN SUBSIDING TO 12 TO 17 FEET.
.SATURDAY...NORTHWEST GALES TO 40 KNOTS. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 8 TO 11 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. WAVES SUBSIDING
TO 5 TO 8 FEET.
.SUNDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST AFTER
MIDNIGHT. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 1 TO 3 FEET.
.TUESDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS. A CHANCE OF SHOWERS. WAVES BUILDING TO 4 TO 7 FEET.

$$

LSZ266-030915-
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-
910 PM EDT THU SEP 2 2010

...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
EVENING...

.REST OF TONIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
15 TO 25 KNOTS AFTER MIDNIGHT. SHOWERS LIKELY AND A SLIGHT CHANCE
OF THUNDERSTORMS THROUGH MIDNIGHT...THEN A CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES 2 TO 4 FEET BUILDING TO 4 TO 7 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS INCREASING TO GALES TO
35 KNOTS BY MID AFTERNOON. SHOWERS LIKELY. WAVES BUILDING TO 9 TO
12 FEET.
.FRIDAY NIGHT...NORTHWEST GALES 45 KNOTS WITH STORM FORCE GUSTS UP TO
55 KNOTS. SHOWERS LIKELY. WAVES BUILDING TO 17 TO 22 FEET.
.SATURDAY...NORTHWEST GALES TO 40 KNOTS. SHOWERS LIKELY. WAVES
SUBSIDING TO 12 TO 17 FEET.
.SATURDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO 30
KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES SUBSIDING TO 8 TO 11 FEET.
.SUNDAY...NORTHWEST WINDS 20 TO 30 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES SUBSIDING TO 6 TO 9 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 4 TO 7 FEET.
.MONDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO 20 KNOTS.
A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO 3 TO 5 FEET.
.TUESDAY...SOUTHEAST WINDS 15 TO 25 KNOTS VEERING NORTHWEST. A
CHANCE OF SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING
TO 2 TO 4 FEET.

$$

LSZ267-030915-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
910 PM EDT THU SEP 2 2010

...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY
EVENING...

.REST OF TONIGHT...SOUTH WINDS 10 TO 20 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS THROUGH
MIDNIGHT. SHOWERS LIKELY. WAVES 1 TO 3 FEET BUILDING TO 3 TO
5 FEET.
.FRIDAY...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS BY MID AFTERNOON. FREQUENT GALE FORCE GUSTS TO 35 KNOTS IN
THE AFTERNOON. A CHANCE OF SHOWERS THROUGH EARLY AFTERNOON...THEN
SHOWERS LIKELY BY MID AFTERNOON. WAVES BUILDING TO 5 TO 8 FEET.
.FRIDAY NIGHT...NORTHWEST GALES TO 40 KNOTS VEERING NORTH AFTER
MIDNIGHT. SHOWERS LIKELY. WAVES BUILDING TO 17 TO 22 FEET.
.SATURDAY...NORTHWEST GALES TO 40 KNOTS. SHOWERS LIKELY. WAVES
SUBSIDING TO 12 TO 17 FEET.
.SATURDAY NIGHT...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES
SUBSIDING TO 8 TO 11 FEET.
.SUNDAY...NORTHWEST WINDS 20 TO 30 KNOTS BACKING WEST BY MID
AFTERNOON. WAVES SUBSIDING TO 7 TO 10 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 4 TO 7 FEET.
.MONDAY...NORTHWEST WINDS 5 TO 15 KNOTS BACKING SOUTHEAST. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY...SOUTHEAST WINDS 20 TO 30 KNOTS VEERING NORTHWEST. A
CHANCE OF SHOWERS. WAVES BUILDING TO 4 TO 7 FEET...THEN SUBSIDING
TO 1 TO 3 FEET.

$$
LSZ261-030915-
MAFOR 0303/
SUPERIOR WEST...GALE WARNING IN EFFECT...
11636 11646 11640 11650 13760 11750. CHANCE OF SHOWERS FRIDAY
EVENING. WAVES 2 TO 6 FEET BUILDING TO 7 TO 12 FEET FRIDAY. 210204
210406.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...
11526 11530 11640 11646 11746 11866 12866 19876. CHANCE OF SHOWERS
FRIDAY MORNING. WAVES 2 TO 5 FEET BUILDING TO 10 TO 18 FEET.
220204.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...
11626 11630 11640 13646 12766 19776. WAVES 1 TO 6 FEET BUILDING TO
13 TO 17 FEET FRIDAY EVENING. 220103.

SUPERIOR EAST...GALE WARNING IN EFFECT...
12536 12540 11530 11546 11666 11766 19776. CHANCE OF SHOWERS IN THE
MORNING. WAVES 2 TO 7 FEET BUILDING TO 9 TO 12 FEET FRIDAY EVENING.
220204.

$$

MCB

 

Hourly Water Level Data

Daily Water Surface Temperature Data