Thursday, April9, 2020
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Marine Weather and Tides
North Topsail Beach, NC

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:43AMSunset 7:38PM Thursday April 9, 2020 10:40 PM EDT (02:40 UTC) Moonrise 8:42PMMoonset 7:00AM Illumination 95% Phase: Waning Gibbous; Moon at 17 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ158 S Of Cape Lookout To N Of Surf City Nc Out 20 Nm- 956 Pm Edt Thu Apr 9 2020
.small craft advisory in effect through late Friday night...
Overnight..NW winds 15 to 20 kt with gusts up to 30 kt, increasing to 20 to 25 kt with gusts up to 30 kt, then diminishing to 15 to 20 kt late. Seas 4 to 6 ft, except 2 to 4 ft near shore. Dominant period 6 seconds. Adjacent sounds and rivers choppy, increasing to rough, then diminishing to choppy late.
Fri..NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Dominant period 4 seconds. Adjacent sounds and rivers choppy.
Fri night..NW winds 15 to 20 kt. Seas 3 to 5 ft, except 2 to 4 ft near shore. Dominant period 4 seconds. Adjacent sounds and rivers choppy.
Sat..NW winds 15 to 20 kt, becoming sw 5 to 10 kt in the afternoon. Seas 2 to 4 ft. NEar shore, seas 2 to 3 ft in the morning, then 1 ft. Dominant period 4 seconds. Adjacent sounds and rivers choppy, diminishing to light chop in the afternoon.
Sat night..S winds around 10 kt. Seas 1 to 2 ft. Adjacent sounds and rivers light chop.
Sun..S winds 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Adjacent sounds and rivers choppy. A chance of showers in the afternoon.
Sun night..S winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Seas 5 to 8 ft, building to 8 to 11 ft after midnight. Adjacent sounds and rivers rough, increasing to very rough after midnight. A chance of showers in the evening, then showers likely after midnight.
Mon..S winds 25 to 30 kt, becoming sw 15 to 20 kt. Seas 9 to 14 ft, subsiding to 7 to 10 ft. Adjacent sounds and rivers very rough, diminishing to choppy. Showers likely.
Tue..NE winds 10 to 15 kt. Seas 4 to 6 ft. Adjacent sounds and rivers a moderate chop.


7 Day Forecast for Marine Location Near North Topsail Beach, NC
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location: 34.42, -77.34     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 092310 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 710 PM EDT Thu Apr 9 2020

SYNOPSIS. High pressure will build in with cooler and drier conditions through early Saturday. A storm system will bring a good chance of showers and thunderstorms Sunday into the day Monday. Unsettled conditions may persist beyond Monday as well.

NEAR TERM /THROUGH FRIDAY NIGHT/. After a very warm afternoon aided by adiabatically compressed air traveling down the mountains, air temperatures will fall off 30 degrees fahrenheit in wake of a cold front, for most interior locations by the first light of Friday, min-T mainly 48-54 degrees, coolest well inland.

Partially RH recovery overnight, but not much higher than 55%, will lead to another exceptionally parched day Friday, accompanied by gusty afternoon winds, and another fire danger statement will be needed, coordinated/ok'd with SC and NC Forestry.

If you enjoy upper 30s to lower 40s in the mornings during April, you should stick around for a crisp early Saturday morning.

SHORT TERM /SATURDAY/. Quiet weather for the short term period as surface high pressure will be in charge with the mid level flow mostly zonal. There will be some increase in clouds late in the period with the next system taking shape to the west but overall measurable precipitation is not expected. Highs Saturday will be in the middle to upper 60s. Lows on the cool side Saturday morning in the upper 30s to lower 40s will warm substantially to around 50 or so.

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/. Dynamic storm system still expected to affect the region Sunday through about Monday morning. An initial round of warm front precipitation will be followed (after a lull in activity) by a more strongly forced convective band late Sunday night into Monday morning. Guidance seems to have slowed down a bit but will wait and see if this is a trend or more spurious. Not much of a break beyond this initial system as pops remain the forecast via possible southern stream energy. The "net"of temperatures will probably be around normal with warmer than climatology early and cooler by the end of the period.

AVIATION /00Z FRIDAY THROUGH WEDNESDAY/. VFR for the next 24 hours for area terminals. Wind gusts will quickly diminish after sunset, but should ramp up again by the mid- morning hours on Friday. Low level wind shear possible over the next 3-6 hours around 2000 feet AGL out of the west between 40 to 45 kts, diminishing after 6z.

Extended Outlook . VFR conditions continue through the end of the week. Flight restrictions possible Sunday and Monday with an approaching low pressure system. VFR for mid next week.

MARINE. An 'Advisory' to remain posted, for 25 kt gusts offshore, while seas hold in a 3-5 foot range this period, composed almost entirely of NW waves every 4-5 seconds as cold air spreads over the waters. Unrestricted visibility with no TSTMs expected for the 0-20 NM waters this period. Easing NW winds Saturday will allow the advisory to drop.

Modest conditions early on with a southerly flow of 10-15 knots or less and seas of 1-3 feet will deteriorate in time as a storm system approaches and moves across Sunday into Monday morning. Winds and seas will increase markedly reaching a peak into Monday with southwest winds of 25-30 knots and seas of 8-10 feet. Small craft conditions are almost a given. Gusts to Gale are also possible. Winds and seas drop off somewhat dramatically in the wake of the system as cold air advection is very modest.

ILM WATCHES/WARNINGS/ADVISORIES.

SC . None. NC . Coastal Flood Advisory from 9 PM this evening to 11 PM EDT Friday for NCZ106-108. Coastal Flood Advisory until 3 AM EDT Friday for NCZ107.

MARINE . Small Craft Advisory until 8 PM EDT Friday for AMZ250-252- 254-256.

SYNOPSIS . SHK NEAR TERM . MJC SHORT TERM . SHK LONG TERM . SHK AVIATION . MK MARINE . MJC/SHK


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41064 25 mi92 min WSW 19 G 23 69°F 66°F998.5 hPa
41159 25 mi40 min 65°F5 ft
41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC 28 mi92 min WSW 9.7 G 14 68°F 65°F998.9 hPa
41110 - Masonboro Inlet, NC 28 mi60 min 65°F4 ft
JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC 28 mi52 min WSW 11 G 13 77°F 63°F998.7 hPa
41037 - ILM3 - 27 miles SE of Wrightsville Beach, NC 30 mi92 min WSW 18 G 23 67°F998.1 hPa
WLON7 35 mi52 min 77°F 70°F999.6 hPa
BFTN7 - 8656483 - Beaufort, NC 41 mi52 min WSW 7 G 15 67°F 66°F998.6 hPa
CLKN7 - Cape Lookout, NC 45 mi40 min WSW 12 G 16 67°F 998.7 hPa (+1.0)67°F

Wind History for Wrightsville Beach, NC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
MCAS New River, NC21 mi44 minWSW 510.00 miFair72°F52°F50%998.9 hPa

Link to 5 minute data for KNCA

Wind History from NCA (wind in knots)
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Last 24hrN5S6S6NW6W3SW4W5SW4SW6W6NW18
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2 days agoS4S4CalmS3CalmCalmCalmW4W4SW3SW5W7W6W4W5SE336S9S6S7S5S6SW6

Tide / Current Tables for New River Inlet, North Carolina
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New River Inlet
Click for Map
Thu -- 03:21 AM EDT     -0.53 feet Low Tide
Thu -- 06:45 AM EDT     Sunrise
Thu -- 07:59 AM EDT     Moonset
Thu -- 09:28 AM EDT     3.51 feet High Tide
Thu -- 03:29 PM EDT     -0.45 feet Low Tide
Thu -- 07:37 PM EDT     Sunset
Thu -- 09:42 PM EDT     Moonrise
Thu -- 09:51 PM EDT     3.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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20.9-0-0.5-0.40.21.12.133.53.42.9210.1-0.4-0.40.11.12.13.13.843.6

Tide / Current Tables for New Topsail Inlet, North Carolina
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New Topsail Inlet
Click for Map
Thu -- 04:04 AM EDT     -0.53 feet Low Tide
Thu -- 06:46 AM EDT     Sunrise
Thu -- 08:01 AM EDT     Moonset
Thu -- 09:32 AM EDT     3.51 feet High Tide
Thu -- 04:12 PM EDT     -0.45 feet Low Tide
Thu -- 07:38 PM EDT     Sunset
Thu -- 09:43 PM EDT     Moonrise
Thu -- 09:55 PM EDT     3.99 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.31.30.4-0.3-0.5-0.20.61.72.83.43.53.12.31.40.5-0.1-0.4-0.20.61.72.93.743.7

Weather Map
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wmap_A
GEOS Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wilmington, NC (22,6,7,8)
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Ground Weather Radar Station Morehead City, NC
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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.