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 48 49 50
000
FZUS63 KMQT 250243
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
943 PM EST WED DEC 24 2014

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...29.1 INCH LOW PRESSURE NEAR GEORGIAN BAY WILL DEEPEN TO
28.7 INCHES AS IT REACHES CENTRAL QUEBEC BY THURSDAY AFTERNOON. A
BRIEF 29.7 INCH RIDGE WILL BUILD OVER SOUTHERN LAKE SUPERIOR
THURSDAY. 29.4 INCH LOW PRESSURE ACROSS EASTERN COLORADO THURSDAY
AFTERNOON WILL SWING A 29.9 INCH TROUGH UP ACROSS IOWA AND LAKE
SUPERIOR FRIDAY...WHICH WILL SLOWLY EXIT EASTERN LAKE SUPERIOR
THROUGH LAKE MICHIGAN FRIDAY NIGHT...AND SOUTHERN ONTARIO ON
SATURDAY. LOOK FOR A SMALL TROUGH AVERAGING 30.0 INCHES TO PUSH
ACROSS LAKE SUPERIOR SATURDAY NIGHT. THIS WILL BE QUICKLY REPLACED BY
A 30.4 INCH RIDGE BUILDING ACROSS LAKE SUPERIOR ON MONDAY...EXTENDING
FROM LARGE 31.0 INCH HIGH PRESSURE ACROSS MUCH OF SOUTHWESTERN
CANADA.

LSZ162-251045-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
943 PM EST WED DEC 24 2014 /843 PM CST WED DEC 24 2014/

.REST OF TONIGHT...WEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE AND SNOW
SHOWERS THROUGH MIDNIGHT. WAVES CALM TO 2 FEET BUILDING TO 1 TO 3
FEET.
.THURSDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. WAVES BUILDING TO 2 TO 4 FEET...THEN
SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW. WAVES
CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON. WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
2 TO 4 FEET...THEN SUBSIDING TO 1 TO 3 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO CALM TO 2 FEET...THEN BUILDING TO 1 TO 3 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.

$$

LSZ263-251045-
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-
943 PM EST WED DEC 24 2014

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KNOTS BACKING WEST AFTER
MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE...FREEZING DRIZZLE AND SNOW
SHOWERS. WAVES 2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE AND SNOW SHOWERS IN THE
MORNING. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.THURSDAY NIGHT...WEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS. A CHANCE OF SNOW. WAVES CALM
TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES CALM TO 2 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET...THEN SUBSIDING TO 2 TO
4 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW SHOWERS.
WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS INCREASING TO 15 TO
25 KNOTS. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET.

$$

LSZ264-251045-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
943 PM EST WED DEC 24 2014

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF DRIZZLE...
FREEZING DRIZZLE AND SNOW SHOWERS. WAVES 3 TO 5 FEET SUBSIDING TO
2 TO 4 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE OF DRIZZLE
AND SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS BECOMING NORTHWEST
5 TO 15 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW. WAVES
SUBSIDING TO CALM TO 2 FEET.
.FRIDAY...NORTH WINDS 5 TO 15 KNOTS INCREASING TO 10 TO 20 KNOTS
IN THE AFTERNOON. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. WAVES BUILDING TO
1 TO 3 FEET.
.SATURDAY...NORTHWEST WINDS 10 TO 20 KNOTS. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
10 TO 20 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 3 TO 5 FEET.
.SUNDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST. A CHANCE
OF SNOW SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING
TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ265-251045-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
943 PM EST WED DEC 24 2014

.REST OF TONIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS...A SLIGHT CHANCE OF DRIZZLE AND FREEZING DRIZZLE.
WAVES 3 TO 6 FEET.
.THURSDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST IN THE
AFTERNOON. A SLIGHT CHANCE OF DRIZZLE AND SNOW SHOWERS IN THE
MORNING. WAVES SUBSIDING TO 1 TO 3 FEET.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING TO
CALM TO 2 FEET.
.FRIDAY...NORTHWEST WINDS LESS THAN 10 KNOTS BECOMING NORTH 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES CALM TO
2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES 1 TO 3 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 2 TO 4 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 1 TO 3 FEET...THEN BUILDING TO 2 TO
4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES 2 TO 4 FEET.

$$

LSZ266-251045-
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-
943 PM EST WED DEC 24 2014

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS...A
SLIGHT CHANCE OF DRIZZLE AND FREEZING DRIZZLE. WAVES 3 TO 5 FEET
BUILDING TO 4 TO 7 FEET.
.THURSDAY...WEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF DRIZZLE AND SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS BECOMING WEST
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING
TO CALM TO 2 FEET.
.FRIDAY...WEST WINDS LESS THAN 10 KNOTS BECOMING NORTHWEST 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES CALM TO
2 FEET.
.FRIDAY NIGHT...NORTH WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.
WAVES BUILDING TO 1 TO 3 FEET.
.SATURDAY...NORTH WINDS 10 TO 20 KNOTS BACKING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 2 TO
4 FEET.
.SATURDAY NIGHT...WEST WINDS 15 TO 25 KNOTS VEERING NORTHWEST
AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 3 TO
5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$

LSZ267-251045-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
943 PM EST WED DEC 24 2014

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KNOTS BECOMING NORTHWEST
20 TO 30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS AND A SLIGHT
CHANCE OF DRIZZLE. A SLIGHT CHANCE OF FREEZING DRIZZLE AFTER
MIDNIGHT. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET.
.THURSDAY...NORTHWEST WINDS 20 TO 30 KNOTS BECOMING WEST 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS AND A SLIGHT
CHANCE OF DRIZZLE. WAVES SUBSIDING TO 3 TO 5 FEET.
.THURSDAY NIGHT...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW. WAVES SUBSIDING
TO 1 TO 3 FEET.
.FRIDAY...SOUTHWEST WINDS 5 TO 15 KNOTS VEERING WEST IN THE
AFTERNOON. A SLIGHT CHANCE OF SNOW. WAVES SUBSIDING TO CALM TO
2 FEET.
.FRIDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH AFTER
MIDNIGHT. A CHANCE OF SNOW. WAVES CALM TO 2 FEET.
.SATURDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS. WAVES
BUILDING TO 1 TO 3 FEET.
.SATURDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF
SNOW SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.
.SUNDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS. WAVES BUILDING TO 3 TO 5 FEET.

$$
LSZ261-251045-
MAFOR 2504/
SUPERIOR WEST 11720 12630 11530 12520 11620 11610. SLIGHT CHANCE OF
DRIZZLE AND SNOW SHOWERS OVERNIGHT. SLIGHT CHANCE OF LIGHT FREEZING
DRIZZLE THURSDAY MORNING. SLIGHT CHANCE OF SNOW THURSDAY EVENING.
WAVES 1 TO 4 FEET.

SUPERIOR NORTH CENTRAL 11830 12730 11620 12630 11620 11610. SLIGHT
CHANCE OF DRIZZLE LIGHT FREEZING DRIZZLE AND SNOW SHOWERS OVERNIGHT.
SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE IN THE MORNING. SLIGHT
CHANCE OF DRIZZLE AND SNOW SHOWERS THURSDAY. SLIGHT CHANCE OF SNOW
THURSDAY EVENING. WAVES 2 TO 5 FEET.

SUPERIOR SOUTH CENTRAL 13740 12630 12520 11510. CHANCE OF SNOW
SHOWERS SLIGHT CHANCE OF DRIZZLE AND LIGHT FREEZING DRIZZLE
OVERNIGHT. SLIGHT CHANCE OF DRIZZLE AND SNOW SHOWERS THURSDAY
MORNING. SLIGHT CHANCE OF SNOW THURSDAY EVENING. WAVES 1 TO 6 FEET.

SUPERIOR EAST 11830 13740 11630 11620 12520. CHANCE OF SNOW SHOWERS
AND SLIGHT CHANCE OF DRIZZLE. SLIGHT CHANCE OF LIGHT FREEZING
DRIZZLE OVERNIGHT. SLIGHT CHANCE OF LIGHT FREEZING DRIZZLE IN THE
MORNING. CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF DRIZZLE
THURSDAY. SLIGHT CHANCE OF SNOW THURSDAY EVENING. WAVES 2 TO 7 FEET.

$$

PETRO




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