Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 191952
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
352 PM EDT TUE AUG 19 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...29.7 INCH LOW PRESSURE CENTERED OVER THE WISCONSIN AND
UPPER MICHIGAN BORDER WILL SLOWLY MOVE SOUTHEAST TO LOWER MICHIGAN
THROUGH 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 AT 29.7 INCHES AS THE HIGH SETTLES OVER
THE MARITIME PROVINCES ON SATURDAY. THE LOW WILL CONTINUE EASTWARD
REACHING TH UPPER GREAT LAKES DURING THE DAY SUNDAY AT 29.8 INCHES.

LSZ162-200400-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
352 PM EDT TUE AUG 19 2014 /252 PM CDT TUE AUG 19 2014/

.LATE THIS AFTERNOON...NORTHEAST WINDS 5 TO 15 KNOTS. NUMEROUS SHOWERS.
WAVES CALM TO 2 FEET BUILDING TO 1 TO 3 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BECOMING NORTH LESS THAN
10 KNOTS AFTER MIDNIGHT. SCATTERED SHOWERS BECOMING ISOLATED BY LATE
EVENING. WAVES SUBSIDING TO CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS LESS THAN 10 KNOTS VEERING EAST BY MID
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 INCREASING TO 10 TO 20 KNOTS
BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES
BUILDING TO 2 TO 4 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...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS 5 TO 15 KNOTS. 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.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ263-264-200400-
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-
352 PM EDT TUE AUG 19 2014

.LATE THIS AFTERNOON...NORTHEAST WINDS 10 TO 20 KNOTS. AREAS OF
FOG. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO
3 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH AFTER
MIDNIGHT. PATCHY FOG. ISOLATED 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 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 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 VEERING SOUTHEAST
AFTER MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO
3 FEET.
.FRIDAY...EAST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...EAST WINDS 5 TO 15 KNOTS VEERING SOUTHEAST AFTER
MIDNIGHT. 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.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS VEERING NORTHWEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.

$$

LSZ265-200400-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
352 PM EDT TUE AUG 19 2014

.LATE THIS AFTERNOON...NORTHEAST WINDS 10 TO 20 KNOTS. AREAS OF
FOG. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. WAVES CALM TO
2 FEET.
.TONIGHT...NORTH WINDS 10 TO 20 KNOTS. PATCHY FOG. SCATTERED
SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS BACKING NORTHWEST BY MID
AFTERNOON. A SLIGHT CHANCE OF SHOWERS THROUGH EARLY AFTERNOON.
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. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS BY
MID AFTERNOON. WAVES CALM TO 2 FEET.
.THURSDAY NIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS BACKING EAST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.FRIDAY NIGHT...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.
.SUNDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES CALM TO 2 FEET.

$$

LSZ266-267-200400-
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-
352 PM EDT TUE AUG 19 2014

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. AREAS OF FOG.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS. WAVES 1 TO 3 FEET.
.TONIGHT...NORTHEAST WINDS 5 TO 15 KNOTS VEERING EAST AFTER
MIDNIGHT. PATCHY FOG. ISOLATED THUNDERSTORMS THROUGH MIDNIGHT.
SCATTERED 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 AND
THUNDERSTORMS. WAVES BUILDING TO 1 TO 3 FEET.
.FRIDAY...SOUTHEAST WINDS 10 TO 20 KNOTS. A CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES SUBSIDING TO CALM TO 2 FEET.
.FRIDAY NIGHT...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.
.SUNDAY...WEST WINDS 5 TO 15 KNOTS VEERING NORTHWEST. A CHANCE OF
SHOWERS. A CHANCE OF THUNDERSTORMS. WAVES BUILDING TO 1 TO
3 FEET.

$$

LSZ261-200400-
MAFOR 1921/

SUPERIOR WEST 11116 12110 12800 12700 11200. SCATTERED RAIN SHOWERS
BECOMING ISOLATED BY LATE EVENING. WAVES 3 FEET OR LESS.

SUPERIOR NORTH CENTRAL 15110 12800. PATCHY FOG TONIGHT AND WEDNESDAY
MORNING. SCATTERED RAIN SHOWERS THIS AFTERNOON AND TONIGHT. ISOLATED
THUNDERSTORMS LATE THIS AFTERNOON. SLIGHT CHANCE OF RAIN SHOWERS
WEDNESDAY. WAVES 1 TO 3 FEET.

SUPERIOR SOUTH CENTRAL 11113 11110 12810 12800 11700 11710. NUMEROUS
RAIN SHOWERS BECOMING SCATTERED TONIGHT. ISOLATED THUNDERSTORMS THIS
EVENING. PATCHY FOG OVERNIGHT AND WEDNESDAY MORNING. SLIGHT CHANCE OF
RAIN SHOWERS WEDNESDAY. WAVES 1 TO 2 FEET.

SUPERIOR EAST 11226 11220 14210 12200. PATCHY FOG OVERNIGHT AND
WEDNESDAY MORNING. SCATTERED RAIN SHOWERS WITH ISOLATED
THUNDERSTORMS OVERNIGHT. SLIGHT CHANCE OF RAIN SHOWERS WEDNESDAY.
WAVES 2 FEET OR LESS.

$$

MCD










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