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fzus61 kcle 230759
glfle 
265 

open lake forecast for lake erie
national weather service cleveland oh
359 am edt mon oct 23 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...low pressure 29.80 inches across southern indiana will
track north-northeast across michigan, deepening to 29.20 inches
by midnight. this will take a cold front across lake erie this
evening. the low will linger across the great lakes through
wednesday as it slowly fills. a ridge averaging 29.90 inches will
build over the lake wednesday night with a warm front lifting
northeast across the lake thursday. low pressure 29.40 inches 
will track across the northern lakes and take a cold front east 
across the lake sometime on friday.

lez162>165-231430-
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-
lake erie open waters from vermilion to avon point oh-
359 am edt mon oct 23 2017

.today...south winds 15 to 25 knots becoming southeast. a slight
chance of showers early, then a chance of showers late this
morning. rain this afternoon. waves 1 to 3 feet building to 3 to
5 feet. 
.tonight...south winds to 30 knots becoming southwest. rain in
the evening, then showers likely after midnight. a chance of
showers late. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.tuesday...southwest winds 15 to 25 knots. a chance of showers.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.tuesday night...southwest winds to 30 knots. a chance of
showers. waves 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west. a
chance of showers. waves 4 to 7 feet subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 
.thursday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.friday...south winds 15 to 20 knots becoming west. a chance of
showers. waves 2 to 4 feet. 

$$
fzus63 kdtx 230745
glflh 

lhz462>464-232015-
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-
345 am edt mon oct 23 2017

...gale warning in effect from this evening through wednesday
morning...

.today...south winds 10 to 15 knots becoming southeast 15 to
20 knots late in the afternoon. a chance of rain late in the
morning. rain in the afternoon. waves 2 to 4 feet. 
.tonight...southeast winds 20 to 25 knots with gusts to 30 knots
becoming south at 35 knot gales with gusts to 40 knot gales.
rain. waves 6 to 9 feet building to 10 to 14 feet after midnight.
waves occasionally around 18 feet. 
.tuesday...south winds to 30 knots with gusts to 40 knot gales. a
chance of showers in the morning...then showers likely in the
afternoon. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tuesday night...south winds to 30 knots decreasing to 20 to
25 knots after midnight. gusts to 40 knot gales. showers likely
early in the evening...then a chance of showers late in the
evening. rain showers likely after midnight. waves 10 to 14 feet.
waves occasionally around 18 feet. 
.wednesday...southwest winds 20 to 25 knots with gusts to 35 knot
gales becoming west 15 to 20 knots with gusts to 30 knots late in
the morning...then decreasing to 10 to 15 knots late in the
evening. showers likely until late afternoon...then a chance of
showers early in the afternoon. waves 5 to 7 feet subsiding to
2 to 4 feet late in the evening. waves occasionally around
10 feet. 
.thursday...southwest winds 10 to 15 knots becoming south 15 to
20 knots with gusts to 30 knots. waves 1 to 3 feet building to
4 to 6 feet. waves occasionally around 8 feet. 
.friday...southwest winds 20 to 25 knots with gusts to 30 knots
becoming west 15 to 20 knots. a chance of showers in the late
evening and early morning. waves 5 to 7 feet. waves occasionally
around 10 feet. 


$$
fzus63 kdtx 230744
glfsc 
821 

lake st clair forecast
national weather service detroit/pontiac mi
344 am edt mon oct 23 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, 29.70 inches, over the ohio valley this 
morning will deepen to 29.50 inches as it lifts into southern 
michigan this evening. the low is then forecast to rapidly deepen to 
29.10 inches as lifts into the straits region late tonight. there 
will then be a slow but steady weakening of the low across the 
northern great lakes on tuesday before it lifts north of the region 
tuesday night into wednesday.

lcz460-232015-
lake st clair-
344 am edt mon oct 23 2017

...small craft advisory in effect from this evening through
tuesday morning...
...gale watch in effect from tuesday afternoon through late
tuesday night...

.today...southeast winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. a chance of light rain late in the morning.
rain in the afternoon. waves 1 to 3 feet.
.tonight...south winds 20 to 25 knots with gusts to 30 knots. rain.
waves 2 to 4 feet.
.tuesday...southwest winds 20 to 25 knots increasing to 30 knots
late in the afternoon. gusts to 35 knot gales in the afternoon. 
mostly cloudy. light showers likely until late afternoon...then a 
chance of light showers late in the afternoon. waves 2 to 4 feet. 
a gale warning may be needed.
.tuesday night...southwest winds to 30 knots with gusts to 35 knot
gales diminishing to 20 to 25 knots after midnight. cloudy with a
chance of light showers. waves 2 to 4 feet.
.wednesday...west winds 15 to 20 knots diminishing to 10 to 15 knots
in the evening. mostly cloudy becoming partly cloudy. a chance of
light showers. waves 1 to 3 feet.
.thursday...south winds 15 to 20 knots. partly cloudy. waves 2 feet
or less.
.friday...west winds 15 to 20 knots. partly cloudy. a chance of
showers. waves 1 to 3 feet.

$$
fzus63 klot 230747
glflm 
040 

open lake forecast for lake michigan
national weather service chicago/romeoville il
247 am cdt mon oct 23 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...low pressure of 29.9 inches is centered over the lower 
ohio valley and another low of 29.5 inches is centered over 
southern manitoba. these lows will merge over michigan today and 
deepen to 29.1 inches early tuesday. the low will meander over 
northern michigan tuesday then lift to quebec wednesday and 
weaken. low pressure of 29.4 inches will move into the dakotas 
wednesday and across lake superior thursday.


lmz261-362-364-366-563-565-567-868-231530-
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-
247 am cdt mon oct 23 2017

sheboygan wi to pentwater mi north...

...gale warning in effect from this evening through wednesday
morning...

.today...west winds 10 to 15 kt early this morning backing to
southeast around 10 kt by late morning...then north 10 to 20 kt
this afternoon. chance of rain. waves 1 to 3 ft building to 2 to 
4 ft. 
.tonight...north winds to 30 kt becoming northwest gales to
45 kt. showers. waves 4 to 6 ft occasionally to 8 ft building to
8 to 12 ft occasionally to 16 ft. 
.tuesday...northwest gales to 45 kt becoming north. rain showers.
waves 10 to 14 ft occasionally to 18 ft. 
.tuesday night...north gales to 45 kt becoming northwest gales to
40 kt overnight. rain showers likely in the evening...then chance
of rain showers overnight. waves 10 to 14 ft occasionally to 18 
ft. 
.wednesday...northwest winds to 30 kt becoming west 10 to 20 kt
in the afternoon. waves 8 to 11 ft occasionally to 14 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.wednesday night...west winds 10 to 20 kt becoming south 15 to
25 kt. waves 2 to 4 ft. 
.thursday...south winds to 30 kt becoming southwest. waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft. 
.friday...northwest gales to 35 kt diminishing to 30 kt. chance
of rain showers. waves 5 to 8 ft occasionally to 10 ft.  

$$
fzus63 klot 230747
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-231530-
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-
247 am cdt mon oct 23 2017

sheboygan wi to pentwater mi south...

...gale watch in effect from tuesday morning through wednesday
morning...

.today...north winds 10 to 20 kt becoming northwest to 30 kt late
this afternoon. rain. waves 4 to 6 ft occasionally to 8 ft 
building to 5 to 8 ft occasionally to 10 ft. 
.tonight...northwest winds to 30 kt becoming west. showers likely.
waves 6 to 9 ft occasionally to 12 ft. 
.tuesday...west gales to 40 kt becoming northwest gales to 45 kt.
rain showers. waves 8 to 11 ft occasionally to 14 ft building to
10 to 14 ft occasionally to 18 ft. 
.tuesday night...northwest gales to 45 kt diminishing to gales to
40 kt. rain showers likely in the evening...then chance of rain
showers overnight. waves 12 to 16 ft occasionally to 21 ft. 
.wednesday...northwest winds to 30 kt becoming west 15 to 25 kt.
waves 8 to 12 ft occasionally to 16 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.wednesday night...west winds 10 to 20 kt becoming southwest
15 to 25 kt. waves 3 to 5 ft. 
.thursday...southwest winds to 30 kt. waves 4 to 7 ft
occasionally to 9 ft building to 6 to 9 ft occasionally to 12 ft.
.friday...west gales to 35 kt diminishing to 30 kt. chance of
rain showers. waves 6 to 9 ft occasionally to 12 ft.  

$$

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