fzus61 kcle 191359
glfle 
592 

open lake forecast for lake erie
national weather service cleveland oh
959 am edt sat aug 19 2017

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...trough averaging 29.80 inches will move across lake 
erie today. high pressure 30.10 inches will move across the lower 
lakes saturday night into sunday before shifting eastward across 
ny state on monday. the next cold front will move southeast across
lake erie tuesday evening and then east of the lake on wednesday.

lez162>164-192015-
lake erie open waters from maumee bay to reno beach oh-
lake erie open waters from reno beach to the islands oh-
lake erie open waters from the islands to vermilion oh-
959 am edt sat aug 19 2017

.rest of today...west winds 5 to 10 knots. a slight chance of
showers and thunderstorms this afternoon. waves 2 feet or less. 
.tonight...west winds 10 knots or less. waves 2 feet or less. 
.sunday...southwest winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.sunday night...southeast winds 5 to 10 knots becoming south.
waves 1 foot or less. 
.monday...south winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.tuesday...southwest winds 10 to 15 knots becoming northwest.
showers and thunderstorms likely. waves 1 to 3 feet. 
.wednesday...northwest winds 10 to 15 knots becoming north. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 191338
glfsc 
477 

lake st clair forecast
national weather service detroit/pontiac mi
938 am edt sat aug 19 2017

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...low pressure, 29.50 inches will lift into central 
quebec today. high pressure, 30.10 inches will then build into the 
upper ohio river valley tonight into sunday.

lcz460-192015-
lake st clair-
938 am edt sat aug 19 2017

.rest of today...northwest winds 5 to 10 knots. partly sunny. waves
2 feet or less.
.tonight...northwest winds 5 to 10 knots this evening becoming light
and variable. mostly clear. waves 2 feet or less.
.sunday...light and variable winds becoming south 5 to 10 knots in
the afternoon. sunny. waves 2 feet or less.
.sunday night...south winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.monday...southwest winds 5 to 10 knots. partly cloudy...then a
chance of showers and thunderstorms late in the evening. waves 2
feet or less.
.tuesday...northwest winds 10 to 15 knots. mostly cloudy with
showers and thunderstorms likely. waves 2 feet or less.
.wednesday...north winds 10 to 15 knots. mostly clear. a chance of
light showers. waves 2 feet or less.

$$

fzus63 kdtx 191335
glflh 

lhz462>464-192015-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
935 am edt sat aug 19 2017

.rest of today...west winds 10 to 15 knots in the late morning
and early afternoon becoming light and variable. waves 3 to
5 feet subsiding to 2 to 4 feet late in the afternoon. 
.tonight...light and variable winds becoming southwest 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.sunday...southwest winds 5 to 10 knots. waves 1 to 3 feet. 
.sunday night...south winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.monday...south winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then veering
to the west early in the evening becoming northwest 15 to
20 knots in the late evening and early morning. a chance of
showers and thunderstorms early in the morning...then
thunderstorms likely until late afternoon. rain showers likely.
waves 1 to 3 feet building to 4 to 6 feet. waves occasionally
around 8 feet. 
.wednesday...north winds 10 to 15 knots. waves 3 to 5 feet. 


$$

fzus63 klot 191345
glflm 
137 

open lake forecast for lake michigan
national weather service chicago/romeoville il
845 am cdt sat aug 19 2017

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...weak high pressure of 29.9 inches will spread across
the mid-mississippi valley to the southern great lakes this
afternoon, then will expand across the ohio valley and mid-
atlantic region sunday while strengthening to 30.1 inches. a low
pressure trough and an associated cold front averaging 29.9 
inches will slowly sag south over the northern part of the lake 
late monday night into tuesday. as low pressure of 29.6 inches 
develops across the eastern lakes tuesday afternoon, the cold 
front will accelerate down the lake. high pressure of 30.2 inches 
will then build over the lake later next week.

lmz261-362-364-366-563-565-567-868-192145-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
845 am cdt sat aug 19 2017

sheboygan wi to pentwater mi north...

.rest of today...west winds 10 to 15 kt becoming southwest 10 to
20 kt. slight chance of showers this afternoon. waves 1 to 3 ft. 
.tonight...southwest winds 10 to 20 kt diminishing to 10 to
15 kt after midnight. slight chance of showers in the evening. 
waves subsiding to 1 to 3 ft by midnight.
.sunday...southwest winds 10 to 15 kt becoming south 10 to 20 kt
by late morning, and increasing to 15 to 25 kt in the afternoon. 
waves building to 3 to 5 ft.
.sunday night...southwest winds 10 to 20 kt. chance of showers
overnight. waves 2 to 4 ft. 
.monday...southwest winds 10 to 15 kt. chance of showers. waves
1 to 3 ft. 
.monday night...south winds 10 to 15 kt becoming east. chance of 
showers. waves 1 to 2 ft. 
.tuesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
chance of thunderstorms. waves building to 3 to 5 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 klot 191345
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-192145-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
845 am cdt sat aug 19 2017

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 15 kt backing to southwest
this afternoon. waves 2 to 3 ft subsiding to 1 to 2 ft in the 
afternoon.
.tonight...south winds 10 to 15 kt becoming southwest after
midnight. waves 1 to 3 ft. 
.sunday...south winds 10 to 15 kt increasing to 10 to 20 kt by
early afternoon. waves 1 to 3 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest.
chance of showers overnight. waves 1 to 3 ft. 
.monday...southwest winds 10 to 15 kt becoming south. chance of
showers in the morning. waves 1 to 3 ft. 
.monday night...southwest winds 10 to 20 kt. showers likely with
a chance of thunderstorms. waves building to 2 to 4 ft. 
.tuesday...west winds 10 to 20 kt becoming northwest 20 to 25 kt.
showers likely with a chance of thunderstorms. waves building to
4 to 6 ft occasionally to 8 ft in the afternoon. 
.wednesday...north winds 15 to 20 kt. waves 3 to 5 ft.  

$$