National Weather Service United States Department of Commerce

Modernized Open Waters Forecast for the Great Lakes

Feedback requested on this experimental format - Survey Link

 

Full Product Description Document

 

Please compare the new proposed/experimental version of the Open Waters Forecast with the current format.  The modernized open waters forecast will be presented in a tabular form and open up the opportunity for inclusion of extra marine variables.  The current version has a text format and includes the coded MAFOR/Maritime Forecast.  These are some of the notable differences, but please compare the products below and provide comments with this survey.

 

 

NZUS99 KCLE 220305
GLFLET

Experimental Tabular Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
1105 PM EDT Sun Jul 21 2024

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...

LEZ162>164-220800-
Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM
offshoreline to US-Canadian border-
Reno Beach to The Islands OH beyond 5NM off shoreline to US-
Canadian border-
The Islands to Vermilion OH beyond 5 nm off shoreline to US-
Canadian border-
1105 PM EDT Sun Jul 21 2024

.Overnight...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 5 to 10 knots.
100-ft winds........Northeast 10 to 15 knots.
Sig waves...........2 feet or less.

.MONDAY...
Weather.............Mostly cloudy with a slight chance of showers,
                              then partly sunny with a slight chance of
                              showers and thunderstorms in the afternoon.
Sfc winds...........Northeast 5 to 10 knots.
100-ft winds........Northeast 10 to 15 knots.
Sig waves...........2 feet or less.

.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........East 5 to 10 knots in the evening becoming
                              light and variable.
100-ft winds........East 10 to 15 knots in the evening becoming
                              light and variable.
Sig waves...........2 feet or less.

.TUESDAY...
Weather.............Mostly sunny.
Sfc winds...........South 5 to 10 knots becoming southwest in the
                              afternoon.
100-ft winds........South 10 to 15 knots becoming southwest in the
                              afternoon.
Sig waves...........2 feet or less.

.TUESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Southeast 5 to 10 knots becoming south after
                              midnight.
100-ft winds........Southeast 10 to 15 knots becoming south after
                              midnight.
Sig waves...........1 to 3 feet.


.FORECAST DAYS 3 THROUGH 5...

.WEDNESDAY...Slight chance of thunderstorms. chance of showers.
chance of thunderstorms. South winds 10 to 15 knots. Waves 2 to
4 feet.
.THURSDAY...Chance of thunderstorms in the morning. chance of
showers. Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.FRIDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.

$$

LEZ165>167-220800-
Vermilion to Avon Point OH beyond 5 nm off shoreline to US-
Canadian border-
Avon Point to Willowick OH beyond 5 nm off shoreline to US-
Canadian border-Willowick to Geneva-on-the-
Lake OH beyond 5NM off shoreline to US-Canadian border-
1105 PM EDT Sun Jul 21 2024

.Overnight...
Weather.............Partly cloudy.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........2 feet or less.

.MONDAY...
Weather.............Mostly cloudy, then slight chance of showers
                              and thunderstorms in the afternoon.
Sfc winds...........Northeast 5 to 10 knots.
100-ft winds........Northeast 10 to 15 knots.
Sig waves...........2 feet or less.

.MONDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northeast 5 to 10 knots.
100-ft winds........Northeast 10 to 15 knots.
Sig waves...........2 feet or less.

.TUESDAY...
Weather.............Mostly sunny.
Sfc winds...........East 5 to 10 knots becoming southwest in the
                              afternoon.
100-ft winds........East 10 to 15 knots becoming southwest in the
                              afternoon.
Sig waves...........2 feet or less.

.TUESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Southeast 5 to 10 knots.
100-ft winds........Southeast 10 to 15 knots.
Sig waves...........1 to 3 feet.


.FORECAST DAYS 3 THROUGH 5...

.WEDNESDAY...Slight chance of thunderstorms. chance of showers.
chance of thunderstorms. South winds 10 to 15 knots. Waves 2 to
4 feet.
.THURSDAY...Chance of thunderstorms in the morning. chance of
showers. Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.FRIDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.

$$

LEZ061-168-169-220800-
Ripley to Buffalo NY extending from 5NM off shoreline to US-
Canadian border-Geneva-on-the-
Lake to Conneaut OH beyond 5 nm off shoreline to US-
Canadian border-
Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-
Canadian border-
1105 PM EDT Sun Jul 21 2024

.Overnight...
Weather.............Partly cloudy.
Sfc winds...........Light and variable winds.
100-ft winds........Light and variable winds.
Sig waves...........1 to 3 feet.

.MONDAY...
Weather.............Partly sunny, then slight chance of showers in
                              the afternoon.
Sfc winds...........Northeast 5 to 10 knots.
100-ft winds........Northeast 10 to 15 knots.
Sig waves...........2 feet or less.

.MONDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........2 feet or less.

.TUESDAY...
Weather.............Mostly sunny.
Sfc winds...........North 5 to 10 knots becoming southwest in the
                              afternoon.
100-ft winds........North 10 to 15 knots becoming southwest in the
                              afternoon.
Sig waves...........2 feet or less.

.TUESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........North 5 to 10 knots becoming south after
                              midnight.
100-ft winds........North 10 to 15 knots becoming south after
                              midnight.
Sig waves...........2 feet or less.


.FORECAST DAYS 3 THROUGH 5...

.WEDNESDAY...Slight chance of thunderstorms. chance of showers.
chance of thunderstorms. South winds 10 to 15 knots. Waves 2 to
4 feet.
.THURSDAY...Chance of thunderstorms in the morning. chance of
showers. Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.FRIDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.

$$

|* MAFOR NOT GENERATED DUE TO FORMATTER ERRORS. *|

 


293
FZUS61 KCLE 220120
GLFLE

Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
920 PM EDT Sun Jul 21 2024

For waters beyond five nautical miles of shore on Lake Erie

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...
A weak trough averaging 30.00 inches will remain draped over Lake
Erie through mid-week. Low pressure 30.00 inches will drag a cold
front east across the lake Wednesday night into Thursday.

LEZ162>164-220815-
Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM
offshoreline to US-Canadian border-
Reno Beach to The Islands OH beyond 5NM off shoreline to US-
Canadian border-
The Islands to Vermilion OH beyond 5 nm off shoreline to US-
Canadian border-
920 PM EDT Sun Jul 21 2024

.OVERNIGHT...East winds 5 to 10 knots. Waves 1 foot or
less.
.MONDAY...East winds 5 to 10 knots. A slight chance of showers
late in the morning. A slight chance of showers and thunderstorms
in the afternoon. Waves 1 foot or less.
.MONDAY NIGHT...East winds 10 knots or less becoming south. Waves
1 foot or less.
.TUESDAY...Southwest winds 10 knots or less becoming south. Waves
1 foot or less.
.TUESDAY NIGHT...South winds 5 to 10 knots becoming southwest.
Waves 1 foot or less.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west. A
chance of thunderstorms during the day, then a chance of showers
and thunderstorms Wednesday night. Waves 1 foot or less.
.THURSDAY...Northwest winds 5 to 10 knots becoming northeast.
Waves 1 foot or less.
.FRIDAY...Northeast winds 5 to 10 knots becoming east. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LEZ165>167-220815-
Vermilion to Avon Point OH beyond 5 nm off shoreline to US-
Canadian border-
Avon Point to Willowick OH beyond 5 nm off shoreline to US-
Canadian border-Willowick to Geneva-on-the-
Lake OH beyond 5NM off shoreline to US-Canadian border-
920 PM EDT Sun Jul 21 2024

.OVERNIGHT...Northeast winds 10 knots or less becoming
east. Waves 1 foot or less.
.MONDAY...East winds 10 knots or less becoming northeast. A
slight chance of showers early in the afternoon. A slight chance
of showers and thunderstorms late. Waves 1 foot or less.
.MONDAY NIGHT...Northeast winds 10 knots or less. Waves 1 foot or
less.
.TUESDAY...West winds 5 to 10 knots. Waves 1 foot or less.
.TUESDAY NIGHT...South winds 5 to 10 knots becoming southwest.
Waves 1 foot or less.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming west. A
chance of showers and thunderstorms during the day, then showers
likely with a chance of thunderstorms Wednesday night. Waves
2 feet or less.
.THURSDAY...Northwest winds 5 to 10 knots becoming north. A
chance of showers and thunderstorms during the day. Waves 1 foot
or less.
.FRIDAY...North winds 5 to 10 knots becoming east. Waves 1 foot
or less.

Winds and waves higher in and near thunderstorms.

$$

LEZ061-168-169-220815-
Ripley to Buffalo NY extending from 5NM off shoreline to US-
Canadian border-Geneva-on-the-
Lake to Conneaut OH beyond 5 nm off shoreline to US-
Canadian border-
Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-
Canadian border-
920 PM EDT Sun Jul 21 2024

.OVERNIGHT...North winds 10 knots or less becoming east.
Waves 1 foot or less.
.MONDAY...East winds less than 10 knots becoming northeast. A
slight chance of showers early in the afternoon. A chance of
showers with a slight chance of thunderstorms late. Waves 1 foot
or less.
.MONDAY NIGHT...Northeast winds 10 knots or less becoming north.
Waves 1 foot or less.
.TUESDAY...West winds 10 knots or less. Waves 1 foot or less.
.TUESDAY NIGHT...Southwest winds 10 knots or less becoming south.
Waves 1 foot or less.
.WEDNESDAY...Southwest winds 5 to 10 knots. A chance of showers
during the day, then a chance of showers and thunderstorms
Wednesday night. Waves 2 feet or less.
.THURSDAY...West winds 5 to 10 knots becoming north. A chance of
showers and thunderstorms during the day. Waves 1 to 2 feet.
.FRIDAY...North winds 10 knots or less becoming east. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LEZ161-220815-
MAFOR 2203/
ERIE WEST 1/3 11100 13200 12100 12200. Waves 1 foot or less.

ERIE CENTRAL 1/3 11100 13200 14100. Waves 1 foot or less.

ERIE EAST 1/3 13200 14100 11100. Waves 1 foot or less.

$$