Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
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 232047
GLFLS

OPEN LAKE FORECAST FOR LAKE SUPERIOR
NATIONAL WEATHER SERVICE MARQUETTE MI
347 PM EST MON FEB 23 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE SUPERIOR

.SYNOPSIS...A 30.7 INCH HIGH PRESSURE CENTERED OVER CENTRAL ILLINOIS
THIS AFTERNOON WILL REACH THE OHIO VALLEY TONIGHT AND MOVE OFF THE
EAST COAST TUESDAY WHILE WEAKENING TO 30.3 INCHES. A 29.2 INCH LOW
PRESSURE CENTER OVER HUDSON BAY TONIGHT WILL MOVE OVER NORTHERN
QUEBEC WEDNESDAY MORNING WHILE DRAGGING A COLD FRONT ACROSS LAKE
SUPERIOR ON TUESDAY. A 30.7 INCH HIGH PRESSURE OVER SASKATCHEWAN
WEDNESDAY EVENING WILL MOVE OVER IOWA FRIDAY MORNING AND REACH THE
EASTERN GREAT LAKES SATURDAY.

LSZ162-240500-
LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND
PORTAGE MN BEYOND 5NM-
347 PM EST MON FEB 23 2015

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.TONIGHT...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO
30 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.TUESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A SLIGHT CHANCE
OF SNOW SHOWERS AFTER MIDNIGHT.
.WEDNESDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTH WINDS 5 TO 15 KNOTS.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ263-240500-
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-
347 PM EST MON FEB 23 2015

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS.
.TONIGHT...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.TUESDAY...WEST WINDS 15 TO 25 KNOTS BECOMING NORTHWEST 20 TO
30 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO
10 TO 20 KNOTS AFTER MIDNIGHT. A SLIGHT CHANCE OF SNOW SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 5 TO 15 KNOTS VEERING NORTH
AFTER MIDNIGHT.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ264-240500-
LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU
ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER-
347 PM EST MON FEB 23 2015

...GALE WARNING IN EFFECT THROUGH TUESDAY MORNING...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 20 TO 30 KNOTS.
.TONIGHT...SOUTHWEST GALES TO 35 KNOTS BECOMING WEST 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. A CHANCE OF SNOW.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A SLIGHT CHANCE
OF SNOW SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A SLIGHT CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS BACKING WEST IN THE
AFTERNOON.
.THURSDAY NIGHT AND FRIDAY...WEST WINDS 10 TO 20 KNOTS.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ265-240500-
LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI
BEYOND 5NM FROM SHORE-
347 PM EST MON FEB 23 2015

.LATE THIS AFTERNOON...SOUTHWEST WINDS 10 TO 20 KNOTS.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KNOTS INCREASING TO 20 TO
30 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. SNOW LIKELY IN THE MORNING...THEN A CHANCE OF SNOW SHOWERS
IN THE AFTERNOON.
.TUESDAY NIGHT...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS DIMINISHING TO 10 TO
20 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS DIMINISHING TO
5 TO 15 KNOTS AFTER MIDNIGHT.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS BECOMING WEST 10 TO
20 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT AND FRIDAY...WEST WINDS 10 TO 20 KNOTS.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ266-240500-
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-
347 PM EST MON FEB 23 2015

...GALE WARNING IN EFFECT FROM 7 PM EST THIS EVENING THROUGH
TUESDAY MORNING...

.LATE THIS AFTERNOON...SOUTHWEST WINDS 15 TO 25 KNOTS.
.TONIGHT...SOUTHWEST GALES TO 35 KNOTS. A CHANCE OF SNOW.
.TUESDAY...WEST WINDS 20 TO 30 KNOTS BECOMING NORTHWEST IN THE
AFTERNOON. A FEW GALE FORCE GUSTS TO 35 KNOTS IN THE AFTERNOON. SNOW
LIKELY.
.TUESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO
15 TO 25 KNOTS AFTER MIDNIGHT. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KNOTS. A CHANCE OF SNOW
SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF
SNOW SHOWERS.
.THURSDAY...NORTHWEST WINDS 10 TO 20 KNOTS.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BACKING SOUTHWEST.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS. A CHANCE OF SNOW
SHOWERS.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ267-240500-
LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF
SHORE TO THE US/CANADIAN BORDER-
347 PM EST MON FEB 23 2015

.LATE THIS AFTERNOON...SOUTH WINDS 15 TO 25 KNOTS.
.TONIGHT...SOUTH WINDS 20 TO 30 KNOTS VEERING SOUTHWEST AFTER
MIDNIGHT. SNOW AFTER MIDNIGHT.
.TUESDAY...SOUTHWEST WINDS 20 TO 30 KNOTS VEERING NORTHWEST IN
THE AFTERNOON. SNOW.
.TUESDAY NIGHT...NORTHWEST WINDS 20 TO 30 KNOTS. A CHANCE OF SNOW
SHOWERS.
.WEDNESDAY...NORTHWEST WINDS 20 TO 30 KNOTS DIMINISHING TO 15 TO
25 KNOTS IN THE AFTERNOON. A CHANCE OF SNOW SHOWERS.
.WEDNESDAY NIGHT...NORTHWEST WINDS 10 TO 20 KNOTS BECOMING NORTH
5 TO 15 KNOTS AFTER MIDNIGHT.
.THURSDAY...NORTHWEST WINDS 5 TO 15 KNOTS INCREASING TO 10 TO
20 KNOTS IN THE AFTERNOON.
.THURSDAY NIGHT...WEST WINDS 10 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS AFTER MIDNIGHT.
.FRIDAY...WEST WINDS 10 TO 20 KNOTS BECOMING SOUTHWEST 5 TO
15 KNOTS.
.SATURDAY...SOUTHWEST WINDS 10 TO 20 KNOTS BACKING SOUTH. A
CHANCE OF SNOW.

NOTE...WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

$$

LSZ261-240500-
MAFOR 2322/
SUPERIOR WEST...GALE WARNING IN EFFECT...13550 11650 11640 11630
12740. A CHANCE OF SNOW OVERNIGHT AND EARLY TUESDAY AFTERNOON. WAVES
OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR NORTH CENTRAL...GALE WARNING IN EFFECT...14550 12647
12740. A CHANCE OF SNOW TONIGHT. A CHANCE OF SNOW SHOWERS LATE
TUESDAY. WAVES OMITTED FOR MOSTLY ICE COVERED AREAS.

SUPERIOR SOUTH CENTRAL...GALE WARNING IN EFFECT...11530 13550 11547
11637 12740. A CHANCE OF SNOW SHOWERS LATE TUESDAY. WAVES OMITTED
FOR MOSTLY ICE COVERED AREAS.

SUPERIOR EAST...11530 11440 11540 13547 12747. WAVES OMITTED FOR
MOSTLY ICE COVERED AREAS.

$$

07



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