Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
000
FZUS63 KMQT 170900
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
400 AM EST MON NOV 17 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 29.5 INCH LOW PRESSURE OVER FAR NORTHERN LAKE SUPERIOR
WILL MOVE EAST INTO FAR WESTERN QUEBEC THIS EVENING WHILE
STRENGTHENING TO 29.2 INCHES. BEHIND THE LOW...A 29.6 TROUGH WILL
LINGER ACROSS LAKE SUPERIOR THROUGH TUESDAY MORNING...BEFORE BRIEFLY
BEING REPLACED BY A 29.8 INCH RIDGE TUESDAY AFTERNOON AND EVENING.
ANOTHER TROUGH OF LOW PRESSURE AVERAGING 29.7 INCHES OVER NORTHERN
MANITOBA ON TUESDAY WILL SLIDE ACROSS THE UPPER GREAT LAKES LATE
TUESDAY NIGHT THROUGH WEDNESDAY...BEFORE EXITING ACROSS THE ONTARIO
AND QUEBEC BORDER AT 29.5 INCHES THURSDAY MORNING. 30.3 INCH HIGH
PRESSURE OVER THE NORTHERN PLAINS ON THURSDAY WILL DIVE ACROSS THE
OHIO VALLEY LATE FRIDAY...EXTENDING A 30.2 INCH RIDGE OVER THE UPPER
GREAT LAKES ON FRIDAY.

LSZ162-171700-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
400 AM EST MON NOV 17 2014 /300 AM CST MON NOV 17 2014/

...GALE WARNING IN EFFECT FROM 1 PM EST /NOON CST/ THIS AFTERNOON
THROUGH LATE TONIGHT...

.EARLY THIS MORNING...NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED
SNOW SHOWERS. WAVES 2 TO 4 FEET.
.TODAY...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SCATTERED SNOW
SHOWERS. WAVES BUILDING TO 5 TO 8 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. FREQUENT GALE FORCE
GUSTS UP TO 35 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS.
WAVES BUILDING TO 6 TO 9 FEET...THEN SUBSIDING TO 4 TO 7 FEET.
.TUESDAY...NORTHWEST WINDS 15 TO 25 KNOTS BACKING WEST IN THE
AFTERNOON. FREEZING SPRAY IN THE MORNING. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 3 TO
5 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. FREEZING SPRAY AFTER MIDNIGHT. WAVES BUILDING TO
4 TO 7 FEET...THEN SUBSIDING TO 3 TO 6 FEET.
.THURSDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.FRIDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. WAVES SUBSIDING TO 1 TO
3 FEET...THEN BUILDING TO 3 TO 5 FEET.

$$

LSZ263-171700-
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-
400 AM EST MON NOV 17 2014

...GALE WARNING IN EFFECT FROM 1 PM EST THIS AFTERNOON THROUGH
LATE TONIGHT...

.EARLY THIS MORNING...NORTHWEST WINDS 15 TO 25 KNOTS. SCATTERED
SNOW SHOWERS. WAVES 3 TO 6 FEET.
.TODAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING NORTH GALES TO
35 KNOTS IN THE AFTERNOON. NUMEROUS SNOW SHOWERS. FREEZING SPRAY
IN THE AFTERNOON. WAVES BUILDING TO 7 TO 10 FEET.
.TONIGHT...NORTHWEST GALES TO 40 KNOTS. FREEZING SPRAY. SNOW
SHOWERS LIKELY IN THE EVENING. A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. WAVES BUILDING TO 8 TO 12 FEET.
.TUESDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. A
CHANCE OF SNOW SHOWERS IN THE MORNING...THEN SNOW SHOWERS LIKELY
IN THE AFTERNOON. WAVES SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY IN THE EVENING...
THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. WAVES 3 TO 5 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 3 TO 5 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF
SNOW SHOWERS. FREEZING SPRAY AFTER MIDNIGHT. WAVES BUILDING TO
5 TO 8 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 5 FEET.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 15 TO
25 KNOTS. WAVES SUBSIDING TO 2 TO 4 FEET...THEN BUILDING TO 3 TO
6 FEET.

$$

LSZ264-171700-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
400 AM EST MON NOV 17 2014

...GALE WARNING IN EFFECT FROM 1 PM EST THIS AFTERNOON THROUGH
TUESDAY MORNING...

.EARLY THIS MORNING...WEST WINDS 15 TO 25 KNOTS. NUMEROUS SNOW
SHOWERS. WAVES 3 TO 6 FEET.
.TODAY...NORTHWEST WINDS 15 TO 25 KNOTS BECOMING NORTH GALES TO
35 KNOTS IN THE AFTERNOON. SNOW SHOWERS. FREEZING SPRAY IN THE
AFTERNOON. WAVES BUILDING TO 7 TO 10 FEET.
.TONIGHT...NORTH GALES TO 40 KNOTS BACKING NORTHWEST AFTER
MIDNIGHT. FREEZING SPRAY. SNOW SHOWERS. WAVES BUILDING TO 8 TO
12 FEET.
.TUESDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY. A CHANCE OF SNOW
SHOWERS IN THE MORNING. SNOW SHOWERS LIKELY IN THE AFTERNOON.
WAVES SUBSIDING TO 3 TO 6 FEET.
.TUESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES 3 TO 6 FEET.
.WEDNESDAY...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO
GALES TO 35 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. FREEZING
SPRAY AFTER MIDNIGHT. WAVES BUILDING TO 6 TO 9 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BECOMING SOUTHWEST 20 TO
30 KNOTS. WAVES 3 TO 6 FEET.

$$

LSZ265-171700-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
400 AM EST MON NOV 17 2014

...GALE WARNING IN EFFECT FROM THIS AFTERNOON THROUGH TUESDAY
AFTERNOON...

.EARLY THIS MORNING...WEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS. WAVES 3 TO 5 FEET SUBSIDING TO 2 TO 4 FEET.
.TODAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST GALES TO
35 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.TONIGHT...NORTHWEST GALES TO 40 KNOTS. SNOW SHOWERS. FREEZING
SPRAY AFTER MIDNIGHT. WAVES BUILDING TO 9 TO 12 FEET.
.TUESDAY...NORTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY IN THE MORNING. SNOW
SHOWERS LIKELY. WAVES SUBSIDING TO 4 TO 7 FEET.
.TUESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS BECOMING SOUTHWEST
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 2 TO 4 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO CALM TO
2 FEET.
.WEDNESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
GALES TO 35 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES
BUILDING TO 5 TO 8 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. FREEZING SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.

$$

LSZ266-171700-
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-
400 AM EST MON NOV 17 2014

...GALE WARNING IN EFFECT FROM THIS AFTERNOON THROUGH TUESDAY
AFTERNOON...

.EARLY THIS MORNING...WEST WINDS 15 TO 25 KNOTS. SCATTERED SNOW
SHOWERS. WAVES 3 TO 6 FEET.
.TODAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
5 FEET...THEN BUILDING TO 7 TO 10 FEET.
.TONIGHT...NORTHWEST GALES TO 35 KNOTS BECOMING NORTH GALES TO
40 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. FREEZING SPRAY AFTER
MIDNIGHT. WAVES BUILDING TO 10 TO 14 FEET.
.TUESDAY...NORTHWEST GALES TO 40 KNOTS DIMINISHING TO 20 TO
30 KNOTS IN THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS. WAVES
BUILDING TO 11 TO 15 FEET...THEN SUBSIDING TO 7 TO 10 FEET.
.TUESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS AFTER MIDNIGHT. SNOW SHOWERS LIKELY. WAVES SUBSIDING TO
4 TO 7 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS VEERING WEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO
3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES BUILDING TO
7 TO 10 FEET.
.THURSDAY...NORTHWEST GALES TO 35 KNOTS DIMINISHING TO 20 TO
30 KNOTS. FREEZING SPRAY. SNOW SHOWERS. WAVES SUBSIDING TO 3 TO
6 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES 3 TO 6 FEET.

$$

LSZ267-171700-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
400 AM EST MON NOV 17 2014

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

.EARLY THIS MORNING...SOUTHWEST WINDS 15 TO 25 KNOTS. ISOLATED
SNOW SHOWERS. WAVES 3 TO 5 FEET.
.TODAY...SOUTHWEST WINDS 15 TO 25 KNOTS VEERING WEST IN THE
AFTERNOON. SNOW SHOWERS. WAVES 3 TO 5 FEET.
.TONIGHT...NORTHWEST WINDS 20 TO 30 KNOTS INCREASING TO GALES TO
35 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES BUILDING TO 9 TO
12 FEET.
.TUESDAY...NORTHWEST GALES TO 35 KNOTS. SNOW SHOWERS. WAVES
BUILDING TO 11 TO 15 FEET...THEN SUBSIDING TO 7 TO 10 FEET.
.TUESDAY NIGHT...WEST WINDS 20 TO 30 KNOTS. SNOW SHOWERS. WAVES
SUBSIDING TO 4 TO 7 FEET.
.WEDNESDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
SUBSIDING TO 1 TO 3 FEET.
.WEDNESDAY NIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. SNOW SHOWERS. WAVES BUILDING TO 6 TO
9 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS. SNOW SHOWERS. WAVES BUILDING TO 7 TO 10 FEET...THEN
SUBSIDING TO 3 TO 6 FEET.
.FRIDAY...WEST WINDS 15 TO 25 KNOTS BACKING SOUTHWEST. SNOW
SHOWERS LIKELY IN THE MORNING...THEN A CHANCE OF SNOW SHOWERS.
WAVES 3 TO 6 FEET.

$$

LSZ261-171700-
MAFOR 1710/
SUPERIOR WEST...GALE WARNING IN EFFECT...12740 15740 19750. FREEZING
SPRAY. SCATTERED SNOW SHOWERS TODAY. CHANCE OF SNOW SHOWERS TONIGHT.
WAVES 3 TO 8 FEET TODAY. WAVES BUILDING TO 7 TO 10 FEET TONIGHT.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...11637 11737 11847
14857 11757. SNOW SHOWERS. FREEZING SPRAY THIS AFTERNOON AND TONIGHT.
WAVES 3 TO 6 FEET BUILDING TO 7 TO 10 FEET TODAY. WAVES BUILDING TO
9 TO 12 FEET TONIGHT.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11630 12637 11747
14757. SCATTERED SNOW SHOWERS EARLY THIS MORNING THEN SNOW SHOWERS
TODAY AND TONIGHT. WAVES 2 TO 7 FEET TODAY. WAVES BUILDING TO 10 TO
13 FEET TONIGHT.

SUPERIOR EAST...GALE WARNING IN EFFECT...11530 13637 13747 11857.
SCATTERED SNOW SHOWERS EARLY THIS MORNING THEN NUMEROUS SNOW SHOWERS
TODAY. SNOW SHOWERS TONIGHT. FREEZING SPRAY OVERNIGHT. WAVES 4 TO
6 FEET TODAY. WAVES BUILDING TO 10 TO 13 FEET TONIGHT.

$$

KC




USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.