Marine Weather and Tides
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
|Sunrise 7:12AM||Sunset 7:25PM||Tuesday March 20, 2018 9:26 AM EDT (13:26 UTC)||Moonrise 8:20AM||Moonset 9:42PM||Illumination 14%|
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|AMZ250 Coastal Waters From Surf City To Cape Fear Nc Out 20 Nm- 857 Am Edt Tue Mar 20 2018 |
.small craft advisory in effect from 5 pm edt this afternoon through Thursday afternoon...
Rest of today..S winds 10 to 15 kt, becoming sw 15 to 20 kt late this morning and afternoon. Gusts to 25 kt late. Seas 3 to 4 ft, building to 4 to 5 ft this afternoon. Isolated showers early this morning, then scattered showers with isolated tstms this afternoon.
Tonight..SW winds 15 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, building to 5 to 7 ft after midnight. Scattered showers with isolated tstms.
Wed..W winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Isolated showers.
Wed night..NW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, subsiding to 3 to 5 ft after midnight. A slight chance of rain.
Thu..NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft, subsiding to 2 to 4 ft in the afternoon.
Thu night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Fri..NW winds 10 to 15 kt, diminishing to 10 kt. Seas 2 to 3 ft.
Sat..W winds 10 to 15 kt, becoming sw 15 to 20 kt. Seas 2 to 4 ft. A chance of showers through the night. Winds and seas higher in and near tstms.
|AMZ200 857 Am Edt Tue Mar 20 2018 |
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. A series of weak lows will move across the area today through late Wednesday. Gusty offshore winds will develop mid-week in the wake of strengthening low pressure off the mid-atlantic coast. High pressure will build in Thursday through Friday. Low pressure will approach from the west on Saturday.
7 Day Forecast for Marine Location Near Carolina Beach, NCHourly EDIT Help
Area Discussion for - Wilmington, NC  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 kilm 201158|
area forecast discussion
national weather service wilmington nc
758 am edt Tue mar 20 2018
Low pressure moving eastward, will affect the carolinas today.
It's associated cold front will push across the local area
tonight as the intensifying low tracks off the nc coast and then
slowly northeastward while continuing to further deepen. Possible
strong to severe thunderstorms will occur ahead of the low early
this morning and potentially again this afternoon thru early
evening. Cold and dry high pressure will finally extend across
the carolinas Thursday and Friday with morning lows flirting
with 32 degrees. The weekend into early next week may become
unsettled while continuing on the cool side.
Near term through tonight
As of 3 am Tuesday... Line of convection being pushed east this
morning by shortwave low pressure combo is lifting a warm front
across the area. Widespread showers with embedded thunderstorms will
move off the coast around 12z. Boundary layer is somewhat stable
this morning and low level jet is not very impressive. Instability
is also lacking given the nocturnal timing. Cannot rule out an
isolated strong wind gust in the predawn hours but severe weather
Warm front pushes north of the area this morning with low level jet
of 45 to 55 kt helping spread warm, moist air over the region. Highs
today will climb into the mid to upper 70s with potential for low
80s with any peaks of sun. Dewpoints will rise into the low to mid
60s today. Aloft the progressive mid-level pattern becomes more
amplified as a shortwave moves into the tn valley and acquires a
negative tilt. Lapse rates steepen from late morning into early
afternoon, when CAPE values are forecast to be around 2k j kg. Low
pressure moving into the area this afternoon, along the front, will
be gaining strength as it slowly moves east. Low level convergence
along the cold front and dynamics associated with the developing low
should be enough to generate widespread deep convection. There
remains potential for strong to severe storms this afternoon,
possibly lingering into the first part of the evening, and spc
continues to carry an enhanced risk for the coastal areas and a
marginal for areas just inland from the coast.
Second round of convection pushes offshore this evening, ending any
severe threat and commencing a period of cold advection. Temps drop
below climo by the end of the period with lows in the upper 30s to
lower 40s possible. Although precip chances rapidly decrease this
evening and overnight, moisture from 2-4k ft will help low clouds
linger through the end of the period.
Short term Wednesday through Thursday night
As of 430 am Tuesday... The cold core upper closed low,
extending across the fa at it's furthest southward extent
on wed, will produce variably cloudy skies across the area
especially during the heating of the day on wed. At this point,
looking at cold and patchy to occasional liquid rain with the
possibility of graupel or pea size hail from the embedded
stronger showers. Temps Wed into Wed night will run a
conservative 10 to 15 degrees below normal. And there will be
the increased potential for min temps Thu morning dropping into
the 30-35 degree range and the same holds true for Friday
morning. Have been favoring the cooler nam MOS guidance of late
which has been consistent between model run times. The hwo
references the possibility of freezing and or frost issues come
thu and Fri mornings. The upper low is progged to pull away
Thursday, in it's wake the fa will remain under control of a
decent amplified longwave upper trof with NW flow thru the atm
column. The upper trof axis will remain primarily east of the fa
this period. Sfc winds will remain active thruout this period
due to a decent sfc pg across the fa due to deepening low
pressure moving into the canadian maritimes and a nearly 1030mb
high situated along the gulf coast states.
Long term Friday through Monday
As of 300 pm Sunday... Although I would not discount a few
flurries as potent shortwave swings through the back end of the
upper trough early in the period, the moisture will be very
limited. Therefore will not include any pcp in forecast early
thurs morning as upper trough swings off the coast. Caa
continues through thurs into Friday in strong NW flow as high
pressure builds in from the north. The 850 temps drop down
around -4c and do not return above 0c until sat. Temps will drop|
into the 30s most places with some frost or freeze potential in
spots again early Fri morning. Temps both thurs and Fri may not
reach above 60. Low pressure system will brush the carolinas
fri night into Sat as it moves toward the mid atlantic coast.
This will produce increase in clouds and greater chc of rain
across the area late Fri into early sat. The latest model runs
show a possible wedge type scenario setting up for the weekend
with clouds and periods of rain possible. Overall, the weather
may turn out to be cooler and more unsettled than originally
Aviation 12z Tuesday through Saturday
As of 12z... Through mid-morning generally MVFR cigs. There will be
a chance for ifr CIGS for the next hour or so, but cigs
generally improving overall this morning. Precipitation is
decreasing as an impulse exits the coast.
ExpectVFR and winds to become southwest and gusty around mid-
morning. Showers and thunderstorms will re-develop late morning
into the afternoon. The best chance for reduced flight
conditions with this activity will be the coastal terminals in
the afternoon. Strongest activity should exit the coast by 00z,
but other lighter areas of mainly light rain will persist
overnight. MVFR CIGS expected this evening and overnight, with
best confidence of ifr klbt kilm.
Extended outlook... Periods of MVFR ifr through Wednesday, otherwise
Near term through tonight ...
as of 3 am Tuesday... Southerly flow will develop and then
increase today as low pressure develops to the west. Gradient
will supports southwest winds of 15 to 20 kt into this
afternoon. Further strengthening of the low will push speeds
close to 25 kt with gusts in excess of 30 kt. Increasing
southerly flow will build seas across the waters today and
tonight. 6 ft will be possible in some areas as early as mid to
late afternoon and have decided to raise a small craft advisory
for all zones starting at 5 pm and lasting well beyond the end
of the period. There is potential for 10 ft seas in isolated
spots open to extended southerly fetch late tonight.
Short term Wednesday through Thursday night ...
as of 430 am Tuesday... Not one of your better 2 day fcst for
spending time on the open atlantic waters. A decent sfc pg will
basically keep a hold of the local waters thruout this 2 day
period. This a result of the upper low and associated sfc low
pulls away to the NE while a nearly 1030mb high moves along the
gulf coast states. This will result in a west but mainly NW flow
across the local waters with speeds of 15 to 25 kt with gusts to
30 kt. With mainly an offshore NW trajectory, the local waters
will see a decent range of significant seas with 1 to 4 ft
within 10 nm of the coast and 4 to 7 ft at 10 to 20 nm off the
coast. Dominating periods will run 4 to 6 seconds. Will need to
monitor for gales and won't take much for them to occur.
Long term Friday through Sunday ...
as of 300 pm Monday... Cold and dry high pressure will extend
down over the local waters Friday through Saturday. Strong off
shore flow up to 15 to 20 kts early thurs will weaken and become
more northerly through the period down to 10 kt or less by sat.
This will allow seas to subside from close to 3 to 5 ft early
Thursday down less than 3 ft by Fri aftn into sat.
Ilm watches warnings advisories
Marine... Small craft advisory from 5 pm this afternoon to 6 pm edt
Thursday for amz250-252-254-256.
near term... Iii
short term... Dch
long term... Rgz
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|41110 - Masonboro Inlet, NC||12 mi||26 min||55°F||4 ft|
|41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC||12 mi||78 min||WSW 5.8 G 14||60°F||56°F||1001.2 hPa|
|WLON7||14 mi||38 min||62°F||54°F||999.1 hPa|
|JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC||14 mi||38 min||SSW 8 G 11||61°F||57°F||999.5 hPa|
|41108||22 mi||26 min||57°F||4 ft|
|41037 - ILM3 - 27 miles SE of Wrightsville Beach, NC||29 mi||78 min||WSW 12 G 19||64°F||1001.7 hPa|
|SSBN7||33 mi||104 min||2 ft|
|41024 - Sunset Nearshore (SUN 2)||34 mi||78 min||SW 9.7 G 14||58°F||55°F||999.6 hPa|
|41013 - Frying Pan Shoals, NC Buoy||42 mi||26 min||SSW 23 G 29||70°F||68°F||1000.5 hPa (-0.9)||64°F|
Wind History for Wrightsville Beach, NC(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Brunswick County Airport, NC||11 mi||31 min||SW 10||7.00 mi||Fair||60°F||58°F||93%||1000.3 hPa|
|Wilmington International Airport, NC||17 mi||33 min||SSW 8||10.00 mi||Partly Cloudy||62°F||61°F||96%||999.5 hPa|
Wind History from SUT (wind in knots)
|1 day ago||NE||N||N||N||N|
|2 days ago||Calm||S||SW||SW||SW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Wilmington Beach |
Click for Map
Tue -- 04:10 AM EDT -0.36 feet Low Tide
Tue -- 07:15 AM EDT Sunrise
Tue -- 09:20 AM EDT Moonrise
Tue -- 10:21 AM EDT 4.23 feet High Tide
Tue -- 04:17 PM EDT -0.38 feet Low Tide
Tue -- 07:23 PM EDT Sunset
Tue -- 10:41 PM EDT Moonset
Tue -- 10:45 PM EDT 4.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Campbell Island |
Click for Map
Tue -- 06:32 AM EDT 0.04 feet Low Tide
Tue -- 07:15 AM EDT Sunrise
Tue -- 09:20 AM EDT Moonrise
Tue -- 11:31 AM EDT 4.13 feet High Tide
Tue -- 06:40 PM EDT 0.05 feet Low Tide
Tue -- 07:23 PM EDT Sunset
Tue -- 10:42 PM EDT Moonset
Tue -- 11:39 PM EDT 4.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES Local Image of Mid-Atlantic EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Wilmington, NC (9,2,3,4)(on/off)  Help
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