Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 190722
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
322 AM EDT TUE AUG 19 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...29.7 INCH LOW PRESSURE CENTERED OVER WESTERN WISCONSIN
WILL SLOWLY MOVE SOUTHEAST TO LOWER MICHIGAN BY WEDNESDAY
AFTERNOON WHILE WEAKENING TO 29.9 INCHES. 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 AND UPPER GREAT LAKES AS THE HIGH SETTLES OVER THE
MARITIME PROVINCES ON SATURDAY.

LSZ162-191530-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
322 AM EDT TUE AUG 19 2014 /222 AM CDT TUE AUG 19 2014/

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

$$

LSZ263-264-191530-
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-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
322 AM EDT TUE AUG 19 2014

.TODAY...NORTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. AREAS OF FOG. SCATTERED SHOWERS. WAVES 2 TO 4 FEET
SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS DIMINISHING TO LESS THAN
10 KNOTS BY MID AFTERNOON. A SLIGHT CHANCE OF SHOWERS. 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 INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
BUILDING TO 1 TO 3 FEET...THEN SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING WEST. A CHANCE
OF SHOWERS. WAVES CALM TO 2 FEET.

$$

LSZ265-191530-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
322 AM EDT TUE AUG 19 2014

.EARLY THIS MORNING...SOUTHEAST WINDS 5 TO 15 KNOTS. AREAS OF
FOG. NUMEROUS SHOWERS. WAVES 1 TO 3 FEET.
.TODAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST BY MID
AFTERNOON. AREAS OF FOG. NUMEROUS SHOWERS THROUGH EARLY AFTERNOON
BECOMING SCATTERED BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2
FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS. PATCHY FOG. A CHANCE OF
SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS LESS THAN 10 KNOTS VEERING EAST
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 AND FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.SATURDAY...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH. A
CHANCE OF THUNDERSTORMS. A CHANCE OF SHOWERS. WAVES CALM TO
2 FEET.

$$

LSZ266-267-191530-
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-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
322 AM EDT TUE AUG 19 2014

.TODAY...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING EAST 5 TO 15 KNOTS
BY MID AFTERNOON. AREAS OF FOG. SCATTERED SHOWERS BECOMING NUMEROUS.
WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. PATCHY FOG. A CHANCE OF SHOWERS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY NIGHT...NORTH WINDS LESS THAN 10 KNOTS VEERING
NORTHEAST AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS THROUGH
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. A CHANCE OF SHOWERS AND
THUNDERSTORMS. 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.

$$

LSZ261-191530-
MAFOR 1909/
SUPERIOR WEST 15110 11110 11800. SCATTERED SHOWERS TODAY AND A
SLIGHT CHANCE OF SHOWERS TONIGHT. WAVES 1 TO 3 FEET.

SUPERIOR NORTH CENTRAL 11313 12213 11213 14110. SCATTERED SHOWERS
TODAY AND A CHANCE OF SHOWERS TONIGHT. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 12316 12216 11113 11110 12810. AREAS OF FOG.
SCATTERED SHOWERS EARLY THIS MORNING AND TONIGHT. WAVES 1 TO 3 FEET.

SUPERIOR EAST 11320 11326 11226 11216 12226 12210. AREAS OF FOG.
SCATTERED SHOWERS EARLY THIS MORNING. A CHANCE OF SHOWERS OVERNIGHT.
WAVES 2 TO 3 FEET.

$$

07




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