FZUS63 KMQT 200754
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
354 AM EDT MON MAY 20 2013

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...EXPECT A 30.3 INCH RIDGE OF HIGH PRESSURE OVER NORTHERN
MANITOBA TO SLIDE ACROSS JAMES BAY TONIGHT...AND EXIT EASTWARD
ACROSS QUEBEC TUESDAY NIGHT. IN THE MEANTIME...29.5 INCH LOW
PRESSURE OVER THE EASTERN DAKOTAS AND WESTERN MINNESOTA TODAY AND
TONIGHT SHOULD FILL TO 29.7 INCHES ACROSS SOUTHERN MINNESOTA AND
CENTRAL WISCONSIN ON TUESDAY...AND SLOWLY STRETCH FROM SOUTHERN
WISCONSIN TO LOWER MICHIGAN DURING THE DAY WEDNESDAY. THE LOW
PRESSURE SYSTEM WILL FINALLY EXIT EASTWARD ACROSS THE LOWER GREAT
LAKES WEDNESDAY NIGHT. BEHIND THE LOW...STRONG AND COOL 30.7 INCH
HIGH PRESSURE ACROSS NORTH CENTRAL CANADA WILL EXTEND A RIDGE
AVERAGING 30.4 INCHES ACROSS LAKE SUPERIOR LATE THURSDAY AFTERNOON
THROUGH AT LEAST FRIDAY.

LSZ162-201600-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
354 AM EDT MON MAY 20 2013 /254 AM CDT MON MAY 20 2013/

.EARLY THIS MORNING...EAST WINDS 20 TO 30 KNOTS. WIDESPREAD FOG.
RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 4 TO 8 FEET.
.TODAY...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. WIDESPREAD FOG. RAIN SHOWERS AND SCATTERED
THUNDERSTORMS. WAVES 4 TO 8 FEET.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. WIDESPREAD FOG.
NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS. WAVES 4 TO
7 FEET.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS. AREAS OF FOG THROUGH
EARLY AFTERNOON. A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. WAVES BUILDING TO 5 TO 8 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. RAIN SHOWERS
LIKELY. WAVES SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. RAIN SHOWERS LIKELY THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO 1 TO 3 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 5 TO 15 KNOTS VEERING EAST. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-201600-
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-
354 AM EDT MON MAY 20 2013

.EARLY THIS MORNING...EAST WINDS 15 TO 25 KNOTS. AREAS OF FOG.
RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 4 TO 7 FEET.
.TODAY...EAST WINDS 15 TO 25 KNOTS. AREAS OF FOG. RAIN SHOWERS
AND SCATTERED THUNDERSTORMS. WAVES BUILDING TO 7 TO 10 FEET.
.TONIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. WIDESPREAD FOG.
NUMEROUS RAIN SHOWERS AND SCATTERED THUNDERSTORMS. WAVES
SUBSIDING TO 4 TO 7 FEET.
.TUESDAY...NORTHEAST WINDS 15 TO 25 KNOTS. AREAS OF FOG. A CHANCE
OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES
4 TO 7 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. AREAS OF FOG
THROUGH MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO
3 TO 5 FEET.
.WEDNESDAY...NORTHEAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES
SUBSIDING TO 1 TO 3 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 2 TO 4 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH LESS
THAN 10 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING SOUTH LESS THAN
10 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-201600-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
354 AM EDT MON MAY 20 2013

.EARLY THIS MORNING...EAST WINDS 20 TO 30 KNOTS. NUMEROUS RAIN
SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 4 TO 7 FEET.
.TODAY...EAST WINDS 20 TO 30 KNOTS. WIDESPREAD FOG THROUGH EARLY
AFTERNOON. AREAS OF FOG BY MID AFTERNOON. RAIN SHOWERS AND
SCATTERED THUNDERSTORMS. WAVES BUILDING TO 7 TO 10 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS. WIDESPREAD FOG. NUMEROUS
RAIN SHOWERS AND SCATTERED THUNDERSTORMS. WAVES SUBSIDING TO 4 TO
7 FEET.
.TUESDAY...EAST WINDS 15 TO 25 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS. WAVES SUBSIDING TO 3 TO 5 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG
THROUGH MIDNIGHT. A CHANCE OF RAIN SHOWERS. WAVES 3 TO 5 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS BECOMING NORTHEAST
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO
2 FEET...THEN BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...SOUTHWEST WINDS LESS THAN 10 KNOTS. WAVES CALM TO
2 FEET.

$$

LSZ265-201600-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
354 AM EDT MON MAY 20 2013

.EARLY THIS MORNING...EAST WINDS 15 TO 25 KNOTS. PATCHY FOG.
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 4 TO
7 FEET.
.TODAY...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WIDESPREAD FOG THROUGH EARLY AFTERNOON. AREAS
OF FOG BY MID AFTERNOON. NUMEROUS RAIN SHOWERS AND SCATTERED
THUNDERSTORMS. WAVES BUILDING TO 4 TO 8 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS. WIDESPREAD FOG. NUMEROUS
RAIN SHOWERS AND SCATTERED THUNDERSTORMS. WAVES SUBSIDING TO 4 TO
7 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS BECOMING NORTHEAST 5 TO
15 KNOTS BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF RAIN SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES SUBSIDING TO 2 TO
4 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. AREAS OF FOG. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST
AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.FRIDAY...NORTH WINDS LESS THAN 10 KNOTS VEERING SOUTH. WAVES
CALM TO 2 FEET.

$$

LSZ266-201600-
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-
354 AM EDT MON MAY 20 2013

.EARLY THIS MORNING...EAST WINDS 20 TO 30 KNOTS. PATCHY FOG.
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 4 TO
7 FEET.
.TODAY...EAST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO 25 KNOTS
BY MID AFTERNOON. WIDESPREAD FOG THROUGH EARLY AFTERNOON. AREAS
OF FOG BY MID AFTERNOON. RAIN SHOWERS AND SCATTERED
THUNDERSTORMS. WAVES BUILDING TO 4 TO 8 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WIDESPREAD FOG. NUMEROUS RAIN SHOWERS
AND SCATTERED THUNDERSTORMS. WAVES SUBSIDING TO 4 TO 7 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO 15 KNOTS
BY MID AFTERNOON. AREAS OF FOG. A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. WAVES SUBSIDING TO 2 TO 4 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF FOG THROUGH MIDNIGHT. A
SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. A CHANCE OF RAIN
SHOWERS. WAVES 2 TO 4 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS BACKING NORTH BY MID
AFTERNOON. A CHANCE OF RAIN SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. WAVES BUILDING
TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO CALM
TO 2 FEET.
.FRIDAY...NORTH WINDS LESS THAN 10 KNOTS BACKING SOUTHWEST. WAVES
CALM TO 2 FEET.

$$

LSZ267-201600-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
354 AM EDT MON MAY 20 2013

.EARLY THIS MORNING...EAST WINDS 20 TO 30 KNOTS. ISOLATED SHOWERS
AND THUNDERSTORMS. WAVES 2 TO 4 FEET.
.TODAY...EAST WINDS 15 TO 25 KNOTS. AREAS OF FOG. SCATTERED SHOWERS
THROUGH EARLY AFTERNOON...THEN SHOWERS. SCATTERED THUNDERSTORMS.
WAVES 2 TO 4 FEET.
.TONIGHT...EAST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WIDESPREAD FOG. NUMEROUS RAIN SHOWERS
AND SCATTERED THUNDERSTORMS. WAVES 2 TO 4 FEET.
.TUESDAY...EAST WINDS 10 TO 20 KNOTS. AREAS OF FOG. A CHANCE OF
RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. WAVES
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. AREAS OF FOG THROUGH MIDNIGHT. A
SLIGHT CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT. A CHANCE OF RAIN
SHOWERS. WAVES BUILDING TO 1 TO 3 FEET.
.WEDNESDAY...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF RAIN
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS INCREASING TO
15 TO 25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ261-201600-
MAFOR 2009/
SUPERIOR WEST 13246 14146 11146. AREAS OF FOG THIS MORNING AND
WIDESPREAD FOG THIS AFTERNOON THROUGH TONIGHT. SCATTERED
THUNDERSTORMS TODAY THROUGH TONIGHT. WAVES 5 TO 9 FEET.

SUPERIOR NORTH CENTRAL 15246 11246 11236. WIDESPREAD FOG. SCATTERED
THUNDERSTORMS TODAY THROUGH TONIGHT. WAVES 4 TO 6 FEET BUILDING TO 7
TO 10 FEET TODAY THROUGH TONIGHT.

SUPERIOR SOUTH CENTRAL 11240 12246 12236 13226. PATCHY FOG EARLY
THIS MORNING...THEN WIDESPREAD FOG THROUGH TONIGHT. SCATTERED RAIN
SHOWERS THIS MORNING. SCATTERED THUNDERSTORMS THROUGH TONIGHT.
WAVES 4 TO 8 FEET.

SUPERIOR EAST 11240 11243 11246 14236 11236. SCATTERED RAIN SHOWERS
THIS MORNING. SCATTERED THUNDERSTORMS THROUGH TONIGHT. WIDESPREAD
FOG TONIGHT. WAVES 2 TO 5 FEET.

$$

07