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 211505
GLFLET

Experimental Tabular Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
1105 AM EDT Tue May 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>164-212000-
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 AM EDT Tue May 21 2024

.This Afternoon...
Weather.............Sunny.
Sfc winds...........South 5 to 10 knots.
100-ft winds........South 10 to 15 knots.
Sig waves...........2 feet or less.

.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........Southeast 10 to 15 knots becoming south after
                              midnight.
100-ft winds........Southeast 15 to 20 knots becoming south after
                              midnight.
Sig waves...........2 to 4 feet.

.WEDNESDAY...
Weather.............Mostly sunny, then chance of showers and
                              thunderstorms in the afternoon.
Sfc winds...........South 15 to 20 knots.
100-ft winds........South 20 to 25 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with chance of showers and
                              thunderstorms.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...Chance of showers and slight chance of thunderstorms
in the morning, then slight chance of showers in the afternoon
and evening. Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.FRIDAY...Chance of thunderstorms in the afternoon and evening.
chance of showers. Southwest winds 10 to 15 knots. Waves 2 to
4 feet.
.SATURDAY...Chance of showers and thunderstorms in the afternoon
and evening. Northeast winds 10 to 15 knots. Waves 2 to 4 feet.

$$

LEZ165>167-212000-
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 AM EDT Tue May 21 2024

.This Afternoon...
Weather.............Mostly sunny.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........East 5 to 10 knots becoming south 10 to 15
                              knots after midnight.
100-ft winds........East 10 to 15 knots becoming south 15 to 20
                              knots after midnight.
Sig waves...........2 to 4 feet.

.WEDNESDAY...
Weather.............Mostly sunny, then chance of showers and
                              thunderstorms in the afternoon.
Sfc winds...........South 15 to 20 knots.
100-ft winds........South 20 to 25 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with chance of showers and
                              thunderstorms.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...Chance of showers and slight chance of thunderstorms
in the morning, then slight chance of showers in the afternoon
and evening. Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.FRIDAY...Chance of thunderstorms in the afternoon and evening.
chance of showers. Southwest winds 10 to 15 knots. Waves 2 to
4 feet.
.SATURDAY...Chance of showers and thunderstorms in the afternoon
and evening. Northeast winds 10 to 15 knots. Waves 2 to 4 feet.

$$

LEZ061-168-169-212000-
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 AM EDT Tue May 21 2024

.This Afternoon...
Weather.............Mostly sunny.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY...
Weather.............Mostly sunny, then chance of showers and
                              thunderstorms in the afternoon.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.

.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with chance of showers and
                              thunderstorms.
Sfc winds...........Southwest 10 to 15 knots becoming west after
                              midnight.
100-ft winds........Southwest 15 to 20 knots becoming west after
                              midnight.
Sig waves...........2 to 4 feet.


.FORECAST DAYS 3 THROUGH 5...

.THURSDAY...Chance of showers and slight chance of thunderstorms
in the morning, then slight chance of showers in the afternoon
and evening. Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.FRIDAY...Chance of thunderstorms in the afternoon and evening.
chance of showers. Southwest winds 10 to 15 knots. Waves 2 to
4 feet.
.SATURDAY...Chance of showers and thunderstorms in the afternoon
and evening. Northeast winds 10 to 15 knots. Waves 2 to 4 feet.

$$

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

 


000
FZUS61 KCLE 211315
GLFLE

Open Lake Forecast for Lake Erie
National Weather Service Cleveland OH
915 AM EDT Tue May 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 warm front will remain to the north of the lake today. Low
pressure 29.30 inches will lift northeast over Lake Superior
tonight into Wednesday morning, ejecting a cold front east towards
Lake Erie Wednesday afternoon. The front will cross the lake
Wednesday night with high pressure 29.70 inches arriving in its
wake on Thursday. A cold front may push south across the region
Friday before lifting north as a warm front Saturday.

LEZ162>164-212000-
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-
915 AM EDT Tue May 21 2024

.THIS AFTERNOON...Southwest winds 5 to 10 knots becoming east.
Waves 1 foot or less.
.TONIGHT...Southeast winds 5 to 15 knots becoming south. Waves
2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest. A
chance of showers and thunderstorms in the afternoon. Waves 1 to
2 feet.
.WEDNESDAY NIGHT...West winds 5 to 15 knots becoming northwest. A
chance of showers and thunderstorms. Waves 2 feet or less.
.THURSDAY...West winds 5 to 10 knots becoming southwest. A chance
of showers during the day. Waves around 1 foot.
.FRIDAY...South winds 10 to 15 knots becoming southeast. A chance
of showers and thunderstorms. Waves 1 to 2 feet.
.SATURDAY...Southeast winds 10 to 15 knots becoming south. A
chance of showers and thunderstorms. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LEZ165>167-212000-
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-
915 AM EDT Tue May 21 2024

.THIS AFTERNOON...Southwest winds 10 knots or less becoming south.
Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 15 knots becoming south. Waves
2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest. A
chance of showers and thunderstorms in the afternoon. Waves
around 2 feet.
.WEDNESDAY NIGHT...Southwest winds 5 to 15 knots becoming west. A
chance of showers and thunderstorms. Waves 1 to 2 feet.
.THURSDAY...West winds 5 to 10 knots becoming southwest. A chance
of showers during the day. Waves 1 to 2 feet.
.FRIDAY...Southwest winds 10 to 15 knots becoming southeast. A
chance of showers and thunderstorms Friday night. Waves 1 to
2 feet.
.SATURDAY...East winds 10 to 15 knots becoming south. A chance of
showers and thunderstorms. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LEZ061-168-169-212000-
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-
915 AM EDT Tue May 21 2024

.THIS AFTERNOON...Southwest winds 5 to 10 knots. Waves 1 to
2 feet.
.TONIGHT...South winds 5 to 10 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest.
Thunderstorms likely with a chance of showers in the afternoon.
Waves 1 to 2 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots becoming west.
A chance of showers and thunderstorms. Waves 1 to 2 feet.
.THURSDAY...Southwest winds 5 to 15 knots. A chance of showers
during the day. Waves 1 to 2 feet.
.FRIDAY...Southwest winds 5 to 15 knots becoming east. A chance
of showers Friday night. Waves 1 to 2 feet.
.SATURDAY...East winds 10 to 15 knots becoming south. A chance of
showers and thunderstorms during the day. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LEZ161-212000-
MAFOR 2115/
ERIE WEST 1/3 11500 11200 12300 13410 11510. Waves 2 feet or less
this afternoon and tonight. Waves 1 to 3 feet Wednesday morning.

ERIE CENTRAL 1/3 12500 11400 11300 14410. Waves 2 feet or less
this afternoon and tonight. Waves 2 to 3 feet Wednesday morning.

ERIE EAST 1/3 11500 11600 11500 13400 12410. Waves 2 feet or
less.

$$