Great Lakes Forecast
Issued by NWS

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000
FZUS63 KMQT 232007
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
407 PM EDT SAT JUL 23 2016

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.7 INCH TROUGH OF LOW PRESSURE WILL MOVE
EASTWARD FROM THE EASTERN DAKOTAS ACROSS LAKE SUPERIOR OVERNIGHT
TONIGHT AND THROUGH THE DAY SUNDAY. A HIGH PRESSURE RIDGE OF 30.0
INCHES WILL THEN SLIDE FROM THE NORTHERN PLAINS TO THE UPPER
MISSISSIPPI RIVER VALLEY SUNDAY NIGHT INTO MONDAY. EXPECT THIS RIDGE
TO SETTLE OVER THE UPPER GREAT LAKES FOR TUESDAY.  A LOW PRESSURE
TROUGH OF 29.9 INCHES WILL THEN DEVELOP FROM QUEBEC AND EXTEND
THROUGH THE UPPER GREAT LAKES INTO THE CENTRAL PLAINS TUESDAY NIGHT
AND WEDNESDAY.

LSZ162-240415-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
407 PM EDT SAT JUL 23 2016 /307 PM CDT SAT JUL 23 2016/

.LATE THIS AFTERNOON...NORTHEAST WINDS 10 TO 20 KNOTS. SCATTERED
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTH AFTER
MIDNIGHT. PATCHY FOG. PERIODS OF SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT. SCATTERED SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS BY MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...
THEN BUILDING TO 2 TO 4 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO 1 TO 3 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES 1 TO 3 FEET.
.MONDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. WAVES SUBSIDING TO CALM
TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS. A
CHANCE OF THUNDERSTORMS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY...EAST WINDS 5 TO 15 KNOTS BACKING NORTHEAST. WAVES
CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ263-240415-
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-
407 PM EDT SAT JUL 23 2016

.LATE THIS AFTERNOON...EAST WINDS 10 TO 20 KNOTS. SCATTERED
SHOWERS AND THUNDERSTORMS. WAVES 1 TO 3 FEET.
.TONIGHT...EAST WINDS 10 TO 20 KNOTS VEERING SOUTH AFTER
MIDNIGHT. PATCHY FOG. NUMEROUS SHOWERS AND THUNDERSTORMS. WAVES
BUILDING TO 2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS BY MID AFTERNOON. PATCHY FOG THROUGH EARLY AFTERNOON. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH EARLY
AFTERNOON. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
.MONDAY...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 2 TO
4 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS BY MID AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET...THEN
SUBSIDING TO CALM TO 2 FEET.
.TUESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS. A CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ264-240415-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
407 PM EDT SAT JUL 23 2016

.LATE THIS AFTERNOON...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. PATCHY FOG. SCATTERED SHOWERS AND
THUNDERSTORMS THROUGH MIDNIGHT. NUMEROUS SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST 15 TO
25 KNOTS BY MID AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS
THROUGH EARLY AFTERNOON. PATCHY FOG. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS. WAVES 3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS BY MID AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SHOWERS. A CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS VEERING NORTHEAST. WAVES
CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 5 TO 15 KNOTS BACKING NORTH. WAVES
CALM TO 2 FEET.

$$

LSZ265-240415-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
407 PM EDT SAT JUL 23 2016

.LATE THIS AFTERNOON...EAST WINDS 10 TO 20 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS VEERING SOUTH AFTER
MIDNIGHT. NUMEROUS SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO
1 TO 3 FEET.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST BY MID
AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH EARLY
AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO
1 TO 3 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES BUILDING TO 3 TO
5 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS. WAVES SUBSIDING TO CALM TO
2 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ266-240415-
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-
407 PM EDT SAT JUL 23 2016

.LATE THIS AFTERNOON...EAST WINDS 5 TO 15 KNOTS. WAVES CALM TO
2 FEET.
.TONIGHT...SOUTHEAST WINDS 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS AFTER MIDNIGHT. SCATTERED SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT...THEN PERIODS OF SHOWERS AND THUNDERSTORMS
AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES BUILDING TO 2 TO
4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 10 TO 20 KNOTS VEERING WEST BY MID
AFTERNOON. PATCHY FOG. A CHANCE OF SHOWERS AND THUNDERSTORMS.
WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO 20 KNOTS
BY MID AFTERNOON. WAVES 3 TO 5 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO
CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS BACKING SOUTHWEST BY MID
AFTERNOON. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST AFTER
MIDNIGHT. A CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES CALM TO
2 FEET.
.WEDNESDAY...NORTH WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTHEAST WINDS 10 TO 20 KNOTS BECOMING NORTH 5 TO
15 KNOTS. WAVES CALM TO 2 FEET.

$$

LSZ267-240415-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
407 PM EDT SAT JUL 23 2016

.LATE THIS AFTERNOON...NORTHEAST WINDS 5 TO 15 KNOTS. WAVES CALM
TO 2 FEET.
.TONIGHT...SOUTHEAST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. ISOLATED SHOWERS AND THUNDERSTORMS
THROUGH MIDNIGHT...THEN NUMEROUS SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. WAVES BUILDING TO 1 TO 3 FEET.
.SUNDAY...SOUTH WINDS 15 TO 25 KNOTS BECOMING WEST 10 TO 20 KNOTS
BY MID AFTERNOON. PATCHY FOG. SHOWERS AND THUNDERSTORMS LIKELY
THROUGH EARLY AFTERNOON. A CHANCE OF SHOWERS AND THUNDERSTORMS BY
MID AFTERNOON. WAVES SUBSIDING TO CALM TO 2 FEET.
.SUNDAY NIGHT...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS AFTER MIDNIGHT. WAVES BUILDING TO 3 TO 5 FEET.
.MONDAY...WEST WINDS 15 TO 25 KNOTS. WAVES 3 TO 6 FEET.
.MONDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. WAVES SUBSIDING TO CALM TO 2 FEET.
.TUESDAY...WEST WINDS 5 TO 15 KNOTS. WAVES CALM TO 2 FEET.
.TUESDAY NIGHT...SOUTH WINDS 5 TO 15 KNOTS VEERING SOUTHWEST
AFTER MIDNIGHT. A CHANCE OF SHOWERS. WAVES CALM TO 2 FEET.
.WEDNESDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST
10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.THURSDAY...NORTH WINDS 10 TO 20 KNOTS VEERING NORTHEAST. WAVES
CALM TO 2 FEET.

$$

LSZ261-240415-
MAFOR 2321/
SUPERIOR WEST 11220 11229 11329 11420 13520 11530. PATCHY FOG
FROM LATE EVENING TONIGHT THROUGH LATE SUNDAY MORNING. SCATTERED
SHOWERS AND THUNDERSTORMS EARLY THIS EVENING THROUGH LATE TONIGHT.
WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11210 12320 12329 11420 11520 11530.
PATCHY FOG OVERNIGHT THROUGH LATE SUNDAY AFTERNOON. CHANCE OF
SHOWERS AND THUNDERSTORMS LATE SUNDAY MORNING. WAVES 1 TO 4 FEET.

SUPERIOR SOUTH CENTRAL 11210 11220 11320 11329 11429 11420 11510
11620. SCATTERED SHOWERS AND THUNDERSTORMS LATE THIS EVENING THROUGH
LATE SUNDAY MORNING. WAVES 1 TO 3 FEET.

SUPERIOR EAST 11100 11200 11310 11320 12329 11420 11510. PATCHY
FOG LATE TONIGHT THROUGH EARLY SUNDAY AFTERNOON. CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY SUNDAY AFTERNOON. WAVES 1 TO 3 FEET.

$$

JS


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