Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 190214
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
1014 PM EDT MON AUG 18 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...HIGH PRESSURE OF 29.9 INCHES OVER QUEBEC WILL SLOWLY
MOVE EASTWARD THROUGH TONIGHT. 29.7 INCH LOW PRESSURE CENTERED OVER
MINNESOTA WILL GRADUALLY MOVE SOUTHEAST TO LOWER MICHIGAN BY
WEDNESDAY AFTERNOON...PASSING JUST SOUTH OF LAKE SUPERIOR ON TUESDAY.
IT WILL SLOWLY DISSIPATE OVER THE LOWER GREAT LAKES ON THURSDAY.
BROAD LOW PRESSURE OF 29.6 INCHES WILL THEN DEVELOP OVER THE CENTRAL
AND NORTHERN HIGH PLAINS WEDNESDAY WHILE 30.2 INCH HIGH PRESSURE
SETTLES OVER QUEBEC. THIS GENERAL PATTERN WILL PERSIST INTO THE END
OF THE WEEK WHILE A PORTION OF THE TROUGH EXTENDS EASTWARD ACROSS THE
MIDDLE MISSISSIPPI VALLEY ON FRIDAY. THE TROUGH WILL THEN SHIFT
EASTWARD TO THE UPPER MISSISSIPPI VALLEY AS THE HIGH SETTLES OVER THE
MARITIME PROVINCES ON SATURDAY.

LSZ162-191015-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
1014 PM EDT MON AUG 18 2014 /914 PM CDT MON AUG 18 2014/

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. SCATTERED SHOWERS. ISOLATED
THUNDERSTORMS THROUGH MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 1
TO 3 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH
LESS THAN 10 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...EAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST
AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING EAST 10 TO
20 KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A
CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ263-191015-
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-
1014 PM EDT MON AUG 18 2014

.REST OF TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. SCATTERED
SHOWERS. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TUESDAY...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES 1 TO
3 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH
AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY AFTERNOON.
WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS.
A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A
CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ264-191015-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
1014 PM EDT MON AUG 18 2014

.REST OF TONIGHT...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG.
SCATTERED SHOWERS. WAVES 1 TO 3 FEET SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 10 TO
20 KNOTS BY MID AFTERNOON. PATCHY FOG. A CHANCE OF SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS THROUGH EARLY AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A
CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ265-191015-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
1014 PM EDT MON AUG 18 2014

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG.
SCATTERED SHOWERS BECOMING NUMEROUS AFTER MIDNIGHT. WAVES CALM TO 2
FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. AREAS OF FOG. SHOWERS LIKELY THROUGH EARLY AFTERNOON.
A CHANCE OF SHOWERS BY MID AFTERNOON. WAVES BUILDING TO 1 TO
3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS THROUGH EARLY AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS BECOMING
SOUTHEAST 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY...EAST WINDS 10 TO 20 KNOTS VEERING SOUTHEAST. A CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ266-191015-
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-
1014 PM EDT MON AUG 18 2014

.REST OF TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. AREAS OF FOG.
SCATTERED SHOWERS. WAVES 1 TO 3 FEET.
.TUESDAY...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG. SHOWERS LIKELY
THROUGH EARLY AFTERNOON. A CHANCE OF SHOWERS AND A SLIGHT CHANCE
OF THUNDERSTORMS BY MID AFTERNOON. WAVES 1 TO 3 FEET.
.TUESDAY NIGHT...NORTHEAST WINDS 5 TO 15 KNOTS. A CHANCE OF
SHOWERS. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS THROUGH EARLY AFTERNOON. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...EAST WINDS LESS THAN 10 KNOTS INCREASING TO
5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A
CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ267-191015-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
1014 PM EDT MON AUG 18 2014

.REST OF TONIGHT...SOUTHEAST WINDS 15 TO 25 KNOTS. SCATTERED
SHOWERS BECOMING NUMEROUS AFTER MIDNIGHT. WAVES CALM TO 2 FEET
BUILDING TO 1 TO 3 FEET.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY MID
AFTERNOON. PATCHY FOG. SHOWERS LIKELY. WAVES SUBSIDING TO CALM TO
2 FEET.
.TUESDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. SHOWERS LIKELY THROUGH
MIDNIGHT. A SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS. A SLIGHT CHANCE OF
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES
CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTHEAST WINDS LESS THAN 10 KNOTS BECOMING
EAST 5 TO 15 KNOTS AFTER MIDNIGHT. WAVES CALM TO 2 FEET.
.THURSDAY...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS.
WAVES CALM TO 2 FEET.

$$
LSZ261-191015-
MAFOR 1903/

SUPERIOR WEST 14120 11120 13110. SCATTERED RAIN SHOWERS OVERNIGHT
AND TUESDAY. SLIGHT CHANCE OF RAIN SHOWERS TUESDAY EVENING. WAVES
1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 12313 11213 11210 11213 13110. PATCHY FOG
LATE TUESDAY AFTERNOON. SCATTERED RAIN SHOWERS OVERNIGHT. CHANCE OF
RAIN SHOWERS TUESDAY AND TUESDAY EVENING. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 11320 12316 12216 11106 11110 11810. PATCHY
FOG THROUGH MIDNIGHT...THEN AREAS OF FOG THROUGH LATE TUESDAY
AFTERNOON. ISOLATED RAIN SHOWERS THROUGH MIDNIGHT. CHANCE OF RAIN
SHOWERS TUESDAY EVENING. WAVES 1 TO 2 FEET.

SUPERIOR EAST 13330 11336 11326 11216 12226. PATCHY FOG OVERNIGHT.
AREAS OF FOG TUESDAY. SCATTERED RAIN SHOWERS OVERNIGHT. WAVES 3 FEET
OR LESS.

$$

MCD







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