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North America


Real-Time Data
Human Forecasts - Daily Briefing
Watches/Warnings 
Other Resources 
Computer Forecasts
whus73 kapx 300746
mwwapx
lmz323-342-344>346-301600-
/o.ext.kapx.sc.y.0090.000000t0000z-161001t1200z/
grand traverse bay south of a line grand traverse light to
norwood mi-
norwood mi to 5nm west of mackinac bridge including little
traverse bay-sleeping bear point to grand traverse light mi-
point betsie to sleeping bear point mi-
manistee to point betsie mi-
346 am edt fri sep 30 2016
...small craft advisory now in effect until 8 am edt saturday...
the small craft advisory is now in effect until 8 am edt
saturday.
* please see the latest marine forecasts for more detailed
information.
precautionary/preparedness actions
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
$$
whus71 kbox 300808
mwwbox
anz230-301615-
/o.new.kbox.sc.y.0112.161001t0200z-161001t1200z/
boston harbor-
408 am edt fri sep 30 2016
...small craft advisory in effect from 10 pm this evening to 8 am
edt saturday...
the national weather service in taunton has issued a small craft
advisory...which is in effect from 10 pm this evening to 8 am edt
saturday.
* winds and seas...northeast winds 10 to 20 kt with gusts up to
25 kt. seas 2 to 4 feet.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus71 kbox 300808
mwwbox
anz236-301615-
/o.ext.kbox.sc.y.0111.000000t0000z-161001t1500z/
narragansett bay-
408 am edt fri sep 30 2016
...small craft advisory now in effect until 11 am edt saturday...
* winds and seas...northeast winds 10 to 20 kt with gusts up to
30 kt. seas 1 to 3 feet.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus71 kbuf 300213
mwwbuf
loz043-301015-
/o.con.kbuf.sc.y.0082.000000t0000z-161001t0600z/
lake ontario nearshore waters from hamlin beach to sodus bay-
1013 pm edt thu sep 29 2016
...small craft advisory remains in effect until 2 am edt
saturday...
* winds...east 20 to 25 knots.
* waves...3 to 6 feet.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 18 to 33 knots
and/or waves averaging 4 feet or more are expected to produce
hazardous wave conditions to small craft. inexperienced
mariners...especially those operating smaller vessels...should
avoid navigating in these conditions.
&&
$$
whus71 kcle 300744
mwwcle
lez142>146-301545-
/o.con.kcle.sc.y.0045.000000t0000z-161001t0200z/
lake erie nearshore waters from maumee bay to reno beach oh-
lake erie nearshore waters from reno beach to the islands oh-
lake erie nearshore waters from the islands to vermilion oh-
lake erie nearshore waters from vermilion to avon point oh-
lake erie nearshore waters from avon point to willowick oh-
344 am edt fri sep 30 2016
...small craft advisory remains in effect until 10 pm edt this
evening...
* winds...east winds 15 to 25 knots.
* waves...4 to 6 feet...decreasing to 2 to 4 feet friday night.
precautionary/preparedness actions...
a small craft advisory is issued when waves of 4 feet or more are
expected or wind speeds reach 21 to 33 knots which may produce
hazardous conditions to small craft. inexperienced mariners...
especially those operating smaller vessels...should stay in port
during these conditions.
&&
$$
whus73 kdtx 300746
mwwdtx
lcz460-lez444-302000-
/o.con.kdtx.sc.y.0055.000000t0000z-161001t0400z/
lake st. clair-
michigan waters of lake erie from detroit river to north cape mi-
346 am edt fri sep 30 2016
...small craft advisory remains in effect until midnight edt
tonight...
* wind and waves: during the small craft advisory...expect
sustained winds up to 25 knots from the east with gusts up to
31 knots. the largest expected significant waves will be 4
feet with a potential maximum wave height of 5 feet.
* timing: the maximum winds are expected around 6 am edt friday
with the largest waves expected around 6 am edt friday.
refer to the latest marine forecasts for greater detail.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus73 kgrb 300837
mwwgrb
682
urgent - marine weather message
national weather service green bay wi
337 am cdt fri sep 30 2016
...gusty northeast winds expected through friday night...
.a low pressure system that settled south of the region will
drift back north through tonight. the system will result in gusty
northeast winds. the prolonged northeast flow will result in
hazardous waves on the lake and bay.
lmz521-522-541>543-301645-
/o.con.kgrb.sc.y.0065.000000t0000z-161001t1100z/
green bay south of line from cedar river to rock island passage
and north of a line from oconto wi to little sturgeon bay wi-
green bay south of line from oconto wi to little sturgeon bay wi-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
337 am cdt fri sep 30 2016
...small craft advisory remains in effect until 6 am cdt
saturday...
* winds...northeast 15 to 25 knots.
* waves...3 to 5 feet on the bay. 4 to 6 ft on lake michigan.
precautionary/preparedness actions...
a small craft advisory means that wind speeds over 20 knots or
waves greater than 4 feet are expected to produce hazardous
conditions to small craft. inexperienced mariners...especially
those operating smaller vessels should avoid navigating in these
conditions.
&&
$$
whus73 kgrr 300659
mwwgrr
925
urgent - marine weather message
national weather service grand rapids mi
259 am edt fri sep 30 2016
lmz844>849-301500-
/o.con.kgrr.sc.y.0070.000000t0000z-160930t2200z/
st joseph to south haven mi-south haven to holland mi-
holland to grand haven mi-grand haven to whitehall mi-
whitehall to pentwater mi-pentwater to manistee mi-
259 am edt fri sep 30 2016
...small craft advisory remains in effect until 6 pm edt this
evening...
* winds...northeast 15 to 25 knots.
* waves...2 to 5 feet.
precautionary/preparedness actions...
a small craft advisory means that winds or waves are expected to
produce hazardous conditions to small craft. inexperienced
mariners...especially those operating smaller vessels should
avoid navigating in these conditions.
&&
$$
whus71 kgyx 300659
mwwgyx
anz150-152-302100-
/o.con.kgyx.sc.y.0078.000000t0000z-160930t2200z/
coastal waters from stonington, me to port clyde, me out 25 nm-
coastal waters from port clyde, me to cape elizabeth, me out
25 nm-
259 am edt fri sep 30 2016
...small craft advisory remains in effect until 6 pm edt this
evening...
* winds...east 10 to 15 kt with gusts up to 20 kt.
* seas...3 to 5 feet.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 25 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus73 kiwx 300840
mwwiwx
427
urgent - marine weather message
national weather service northern indiana
440 am edt fri sep 30 2016
lmz043-046-301645-
/o.con.kiwx.sc.y.0048.000000t0000z-160930t2200z/
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
440 am edt fri sep 30 2016
...small craft advisory remains in effect until 6 pm edt this
evening...
a small craft advisory remains in effect until 6 pm edt this
evening.
* winds: northeast 15 to 25 knots.
* waves: 3 to 7 feet.
precautionary/preparedness actions...
a small craft advisory means that sustained winds or frequent
gusts of 22 to 33 knots are likely...and/or waves greater than
4 feet are expected. inexperienced mariners...especially those
operating smaller vessels should avoid navigating in these
conditions.
&&
$$
whus73 klot 300801
mwwlot
342
urgent - marine weather message
national weather service chicago il
301 am cdt fri sep 30 2016
...continued strong winds and high waves...
lmz740>745-301615-
/o.con.klot.sc.y.0068.000000t0000z-161001t0900z/
winthrop harbor to wilmette harbor-
wilmette harbor to northerly island-
northerly island to calumet harbor-calumet harbor to gary-
gary to burns harbor-burns harbor to michigan city-
301 am cdt fri sep 30 2016
...small craft advisory remains in effect until 4 am cdt
saturday...
* winds...northeast to 30 kt...easing to 25 kt.
* significant waves...to 9 ft.
* occasional waves...to 11 ft.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus71 klwx 300828
mwwlwx
anz537-301630-
/o.con.klwx.sc.y.0179.000000t0000z-160930t2300z/
tidal potomac from cobb island md to smith point va-
428 am edt fri sep 30 2016
...small craft advisory remains in effect until 7 pm edt this
evening...
* winds...18 to 33 knots within the small craft advisory.
precautionary/preparedness actions...
a small craft advisory means winds of 18 to 33 knots are imminent
or occurring. boaters operating smaller vessels should avoid
navigating in these conditions.
&&
$$
whus72 kmhx 300726
mwwmhx
808
urgent - marine weather message
national weather service newport/morehead city nc
326 am edt fri sep 30 2016
...elevated seas are expected to impact the waters north of cape
hatteras through this afternoon...
.strong winds off the mid-atlantic coast is producing increased
northeast swell that is impacting the waters north of cape
hatteras. seas to around 6 ft will be possible through the day
today.
amz150-152-301930-
/o.con.kmhx.sw.y.0003.000000t0000z-160930t2200z/
s of currituck beach light to oregon inlet nc out 20 nm-
s of oregon inlet to cape hatteras nc out 20 nm-
326 am edt fri sep 30 2016
...small craft advisory for hazardous seas remains in effect
until 6 pm edt this evening...
* seas...4 to 6 feet.
precautionary/preparedness actions...
a small craft advisory for hazardous seas means that waves are
expected to be hazardous to small craft.
&&
$$
whus73 kmkx 300821
mwwmkx
788
urgent - marine weather message
national weather service milwaukee/sullivan wi
321 am cdt fri sep 30 2016
...brisk northeast winds and high waves to continue...
.brisk northeast winds will persist today with the resultant high
waves lingering into tonight. this is due to a stalled low
pressure area over the ohio river valley that will move back north
into the great lakes area.
lmz643>646-301630-
/o.con.kmkx.sc.y.0071.000000t0000z-161001t0900z/
sheboygan to port washington wi-
port washington to north point light wi-
north point light to wind point wi-
wind point wi to winthrop harbor il-
321 am cdt fri sep 30 2016
...small craft advisory remains in effect until 4 am cdt
saturday...
* winds: northeast 15 to 20 knots with a few gusts to 30 knots.
* waves: waves 4 to 6 feet today into tonight...then gradually
subsiding to 2 to 4 feet early saturday morning. .
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus73 kmqt 300801
mwwmqt
619
urgent - marine weather message
national weather service marquette mi
401 am edt fri sep 30 2016
lmz221-250-301615-
/o.ext.kmqt.sc.y.0105.000000t0000z-161001t1100z/
green bay north of line from cedar river mi to rock island
passage-
5nm east of a line from fairport mi to rock island passage-
401 am edt fri sep 30 2016
...small craft advisory now in effect until 7 am edt saturday...
the small craft advisory is now in effect until 7 am edt
saturday.
* wind and waves during the small craft advisory: expect
sustained winds of up to 23 knots from the east...with gusts
up to 26 knots. the largest expected significant waves will be
5 feet with a maximum wave height of up to 7 feet possible.
* timing: the maximum winds are expected around 10 pm edt friday
with the largest waves expected around 8 pm edt friday.
please see the latest marine forecasts for more detailed
information.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus76 kmtr 300304
mwwmtr
pzz535-301115-
/o.con.kmtr.sc.y.0211.160930t1600z-161001t0400z/
monterey bay-
804 pm pdt thu sep 29 2016
...small craft advisory remains in effect from 9 am to 9 pm pdt
friday...
a small craft advisory remains in effect from 9 am to 9 pm pdt
friday.
* winds and waves: see the coastal waters forecast (cwfmtr) or
our marine page at http://weather.gov/sanfrancisco/marine.php
for more details.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus76 kmtr 300304
mwwmtr
pzz565-301115-
/o.con.kmtr.sc.y.0210.160930t0400z-161001t1000z/
coastal waters from point pinos to point piedras blancas
california out to 10 nm-
804 pm pdt thu sep 29 2016
...small craft advisory remains in effect until 3 am pdt
saturday...
a small craft advisory remains in effect until 3 am pdt saturday.
* winds and waves: see the coastal waters forecast (cwfmtr) or
our marine page at http://weather.gov/sanfrancisco/marine.php
for more details.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$
whus71 kokx 300804
mwwokx
anz338-301615-
/o.ext.kokx.sc.y.0083.000000t0000z-161001t1200z/
new york harbor-
404 am edt fri sep 30 2016
...small craft advisory now in effect until 8 am edt saturday...
* winds...northeast 20 to 30 kt.
precautionary/preparedness actions...
a small craft advisory means that sustained wind speeds or
frequent gusts of 25 to 33 kt and/or seas of 5 ft or higher are
expected or occurring...and hazardous to small craft.
inexperienced mariners...especially those operating smaller
vessels...should avoid navigating in these conditions.
&&
$$
whus71 kphi 300743
mwwphi
anz454-455-301200-
/o.con.kphi.gl.w.0031.000000t0000z-160930t1200z/
coastal waters from cape may nj to cape henlopen de out 20 nm-
coastal waters from cape henlopen to fenwick island de out 20 nm-
343 am edt fri sep 30 2016
...gale warning remains in effect until 8 am edt this morning...
* location...the delaware atlantic coastal waters.
* winds...east 15 to 25 kt with gusts up to 35 kt.
* seas...6 to 11 feet.
* timing...winds should slowly diminish through the morning.
precautionary/preparedness actions...
a gale warning means winds of 34 to 47 knots are imminent or
occurring. operating a vessel in gale conditions requires
experience and properly equipped vessels. it is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.
&&
$$
whhw70 phfo 300152
mwwhfo
255
urgent - marine weather message
national weather service honolulu hi
352 pm hst thu sep 29 2016
phz119>121-123-124-301500-
/o.con.phfo.sc.y.0049.000000t0000z-161001t0400z/
maalaea bay-pailolo channel-alenuihaha channel-
big island leeward waters-big island southeast waters-
352 pm hst thu sep 29 2016
...small craft advisory remains in effect until 6 pm hst friday...
* winds and seas...north to northeast up to 25 kt in maalaea bay
and northeast to east winds up to 25 kt in the pailolo and
alenuihaha channels and waters south of the big island.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 25 to 33 knots
and/or seas 10 feet or greater are expected to produce conditions
hazardous to small craft. inexperienced mariners...especially
those operating smaller vessels...should avoid navigating in
these conditions.
&&
$$
whca72 tjsj 300825
mwwsju
amz745-301400-
/o.ext.tjsj.sc.y.0030.000000t0000z-160930t1400z/
coastal waters of southwestern puerto rico out 10 nm-
425 am ast fri sep 30 2016
...small craft advisory now in effect until 10 am ast this
morning...
* winds...east winds 15 to 20 knots.
* waves/seas...seas around 7 feet and subsiding.
precautionary/preparedness actions...
a small craft advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.
&&
$$

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