Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | 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
FZUS61 KBUF 301137
GLFLO

GLFLO

OPEN LAKE FORECAST FOR LAKE ONTARIO
NATIONAL WEATHER SERVICE BUFFALO NY
730 AM EDT SAT MAY 30 2015

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON LAKE ONTARIO

.SYNOPSIS...A 29.5 INCH AREA OF LOW PRESSURE WILL EXIT EASTWARD
ACROSS QUEBEC TODAY...WHILE DRAGGING A COLD FRONT ACROSS THE LAKE
THIS EVENING. THIS COLD FRONT WILL EVENTUALLY STALL ACROSS
PENNSYLVANIA...WITH A WEAK WAVE AVERAGING 29.8 INCHES RIDING ALONG
IT. THIS WAVE WILL PASS ACROSS THE OHIO VALLEY TONIGHT...TO WESTERN
PENNSYLVANIA SUNDAY AND JUST TO THE SOUTHEAST OF THE LAKE MONDAY.
FOLLOWING THIS FRONTAL PASSAGE A 30.2 INCH AREA OF HIGH PRESSURE
WILL DROP ACROSS THE CENTRAL GREAT LAKES TUESDAY...REACHING LAKE
ONTARIO WEDNESDAY AND THURSDAY.

LOZ062-301500-
LAKE ONTARIO OPEN WATERS FROM THE NIAGARA RIVER TO HAMLIN BEACH-
730 AM EDT SAT MAY 30 2015

.TODAY...SOUTHWEST WINDS 10 TO 15 KNOTS INCREASING TO 15 TO 20
KNOTS. A CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES 2 FEET OR
LESS.
.TONIGHT...WEST WINDS 5 TO 15 KNOTS BECOMING NORTHEAST 15 TO
20 KNOTS. SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE EVENING...
THEN SHOWERS AFTER MIDNIGHT. PATCHY FOG AFTER MIDNIGHT. WAVES
1 TO 3 FEET.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KNOTS INCREASING TO 30 KNOTS.
PATCHY FOG IN THE MORNING. SHOWERS IN THE MORNING...THEN RAIN IN
THE AFTERNOON. WAVES 1 TO 3 FEET BUILDING TO 4 TO 7 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS TO 30 KNOTS BECOMING NORTH AND
DIMINISHING TO 15 TO 20 KNOTS. RAIN IN THE EVENING...THEN SHOWERS
LIKELY OVERNIGHT. WAVES 4 TO 7 FEET SUBSIDING TO 3 TO 5 FEET.
.MONDAY...NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. SHOWERS LIKELY DURING THE DAY...THEN A CHANCE OF
SHOWERS MONDAY NIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 2 FEET OR
LESS.
.TUESDAY...NORTH WINDS 5 TO 10 KNOTS BECOMING NORTHWEST. WAVES
1 FOOT OR LESS.
.WEDNESDAY...WEST WINDS 10 KNOTS OR LESS BECOMING SOUTHWEST.
WAVES 1 FOOT OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ063>065-301500-
LAKE ONTARIO OPEN WATERS FROM HAMLIN BEACH TO THE SAINT LAWRENCE
RIVER-
730 AM EDT SAT MAY 30 2015

.TODAY...SOUTH WINDS 5 TO 15 KNOTS BECOMING SOUTHWEST. A CHANCE
OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES 2 FEET OR
LESS.
.TONIGHT...SOUTHWEST WINDS 5 TO 15 KNOTS BECOMING NORTH AND
INCREASING TO 15 TO 25 KNOTS. SHOWERS WITH A CHANCE OF
THUNDERSTORMS IN THE EVENING...THEN SHOWERS AFTER MIDNIGHT.
PATCHY FOG AFTER MIDNIGHT. WAVES 1 FOOT OR LESS BUILDING TO 2 TO
4 FEET.
.SUNDAY...NORTHEAST WINDS 15 TO 25 KNOTS. PATCHY FOG IN THE
MORNING. SHOWERS IN THE MORNING...THEN RAIN IN THE AFTERNOON.
WAVES 3 TO 5 FEET.
.SUNDAY NIGHT...NORTHEAST WINDS 15 TO 25 KNOTS. RAIN IN THE
EVENING...THEN SHOWERS LIKELY OVERNIGHT. WAVES 3 TO 5 FEET
SUBSIDING TO 2 TO 4 FEET.
.MONDAY...NORTH WINDS 15 TO 20 KNOTS DIMINISHING TO 5 TO
15 KNOTS. SHOWERS LIKELY DURING THE DAY...THEN A CHANCE OF
SHOWERS MONDAY NIGHT. WAVES 2 TO 4 FEET SUBSIDING TO 1 FOOT OR
LESS.
.TUESDAY...NORTH WINDS 5 TO 15 KNOTS BECOMING NORTHWEST. A CHANCE
OF SHOWERS DURING THE DAY. WAVES 1 FOOT OR LESS.
.WEDNESDAY...NORTHWEST WINDS 5 TO 10 KNOTS BECOMING SOUTHWEST.
WAVES 1 FOOT OR LESS.

WINDS AND WAVES HIGHER IN AND NEAR THUNDERSTORMS.

$$

LOZ061-301400-
MAFOR 3012 AMD/
ONTARIO WEST 1/2 11510 12520 11616 11606 11716 11826. A CHANCE OF
SHOWERS AND THUNDERSTORMS THIS AFTERNOON. A CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT TONIGHT. WAVES 2 FEET OR LESS TODAY.
WAVES 1 TO 3 FEET TONIGHT.

ONTARIO EAST 1/2 12510 11500 12516 11716 11826. A CHANCE OF
SHOWERS AND THUNDERSTORMS THIS AFTERNOON. A CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT TONIGHT. WAVES 2 FEET OR LESS TODAY.
WAVES 1 FOOT OR LESS BUILDING TO 1 TO 3 FEET TONIGHT.

$$



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