Sunday, December15, 2019
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Marine Weather and Tides
Hampstead, NC

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:08AMSunset 5:04PM Sunday December 15, 2019 1:55 PM EST (18:55 UTC) Moonrise 8:41PMMoonset 10:14AM Illumination 83% Phase: Waning Gibbous; Moon at 19 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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AMZ250 Coastal Waters From Surf City To Cape Fear Nc Out 20 Nm- 1253 Pm Est Sun Dec 15 2019
This afternoon..SW winds 10 kt. Seas 3 ft.
Tonight..SW winds 10 kt, becoming S after midnight. Seas 2 to 3 ft.
Mon..S winds 10 kt, becoming sw 10 to 15 kt in the afternoon. Seas 2 to 3 ft.
Mon night..S winds 10 to 15 kt, becoming sw 20 to 25 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. A slight chance of showers.
Tue..SW winds 15 to 20 kt, becoming nw. Seas 4 to 6 ft. Isolated tstms through the day. Showers likely.
Wed..N winds 15 to 20 kt. Seas 4 to 5 ft.
Thu..N winds 15 to 20 kt, becoming ne 10 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms.
AMZ200 1253 Pm Est Sun Dec 15 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles. Marine conditions will continue to improve through Monday. An increase in winds and seas will come Tuesday through Wednesday ahead of and following a cold front. High pressure then builds in late Wednesday through Friday.


7 Day Forecast for Marine Location Near Hampstead, NC
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location: 34.37, -77.71     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 151503 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 1005 AM EST Sun Dec 15 2019

SYNOPSIS. Dry high pressure will build in from the northwest today. Southerly winds will bring warmer temperatures Monday and Tuesday, followed by increasing rain chances as another cold front crosses the area late Tuesday. Cold and dry weather will follow through the end of the week.

UPDATE. Updated to show some streaming mid to high clouds in an otherwise sunny day. Jet streak and minor perturbation in mid level flow will shift north through the day as ridge nudges up from the south. Therefore expect any high AC or cirrus to shift north and leave a mainly sunny sky across the area. Temps on target to reach the lower 60s most places helped out by downslope westerly flow.

NEAR TERM /THROUGH MONDAY/. Latest sfc analysis shows 1018 mb high pressure centered over FL with a cold front pushing well offshore. The local area will remain under the influence of the high to the south today, leading to a dry and sunny day with little moisture throughout then entire column. Temps will be close to climatological norms for mid December . highs in the lwr 60s most areas.

Little change in the overall pattern into tonight, with light southerly flow and low temps mainly in the lwr 40s inland under a mostly clear sky. Included mention of patchy fog as well due to very high RH at the sfc and very light/calm winds. Any fog will dissipate into the day Mon as SW flow increases well ahead of an approaching low pressure system. Continued dry into Mon with decent WAA allowing temps to climb into the low (mid?) 70s.

SHORT TERM /MONDAY NIGHT THROUGH TUESDAY NIGHT/. Expect an active short term period as a cold front will be crossing the region from west to east. The boundary should move across the area swiftly late in the afternoon. Likely to in some cases categorical pops are in place. Some instability warrants isolated thunder in the afternoon as well. Temperatures surge once again ahead of the front and depending on cloud cover readings eclipsing 70 are certainly in play buoyed by a warm start with lows Tuesday morning in the 50s. A bit of a different story Wednesday morning as 850mb temperature drop below freezing leading to surface lows in the middle 30s or so.

LONG TERM /WEDNESDAY THROUGH SATURDAY/. Quiet weather for the first couple of days of the extended period as surface high pressure settles over the area. Temperatures will be quite cold during this time but not necessarily an epic arctic outbreak. HIghs will be in the upper 40s to lower 50s Wednesday and Thursday with lows mostly below freezing. Some moderation in temperatures is expected Friday. The forecast challenge is at the end of the work week into the weekend. The GFS has been back and forth with a coastal system while other guidance has kept a more southern track. The latest ECMWF however has trended wetter albeit much weaker as opposed to the GFS. Trended pops slightly upward citing this trend but confidence is low.

AVIATION /18Z SUNDAY THROUGH FRIDAY/. VFR conditions through this evening with zonal flow. Light west winds with pleasant temperatures this afternoon. Tonight, good radiational cooling will aid in fog formation at the end of the forecast period. The inland terminals will have stronger winds just off the deck which may hinder fog formation. Monday, a warm day with warm air advection.

Extended Outlook . Small chance of fog Monday morning. Otherwise, VFR on Monday. Sub-VFR conditions could return Tuesday with a cold front passage. VFR mid-to-late week.

MARINE. A Small Craft Advisory continues until 5am due to seas still running around 6 ft over the outer portions of the marine area, and all guidance continues to run too low with wave heights. Improving marine conditions then for the remainder of the day as sfc high pressure builds in from the S. Expect 10-15 kt SW winds this aftn with 3-4 ft seas. This includes a 1-2 ft SE 9-10 second swell component. Similar sub-Small Craft Advisory conditions continue into the day Mon well ahead of an approaching low pressure system.

Expect a somewhat brisk south to southwest flow overnight Monday through much of the day Tuesday as a cold front moves across the area. Wind speeds will be 15-20 knots for the most part possibly a little higher for brief periods. Seas are highlighting small craft conditions mainly for the outer waters. An offshore flow develops late Tuesday night and continues through late Thursday. Speeds during this time will once again be 15-20 knots initially but steadily decreasing as well. Finally a lot of uncertainty for the end of week elements as low pressure may develop offshore.

ILM WATCHES/WARNINGS/ADVISORIES. SC . None. NC . None. MARINE . None.

SYNOPSIS . SHK UPDATE . RGZ NEAR TERM . MAS SHORT TERM . SHK LONG TERM . SHK AVIATION . 43 MARINE . MAS/SHK


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC 12 mi62 min S 12 G 13 55°F 56°F1019.2 hPa
41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC 16 mi48 min SSW 9.7 G 12 55°F 56°F1019.9 hPa
41110 - Masonboro Inlet, NC 16 mi46 min 56°F2 ft
WLON7 16 mi62 min 62°F 53°F1019.7 hPa
41037 - ILM3 - 27 miles SE of Wrightsville Beach, NC 32 mi48 min W 12 G 16 55°F 66°F1020.3 hPa
41064 42 mi48 min W 12 G 18 59°F 66°F1019.8 hPa
41159 42 mi56 min 66°F4 ft
41108 48 mi56 min 56°F3 ft

Wind History for Wrightsville Beach, NC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wilmington International Airport, NC13 mi63 minWSW 510.00 miFair61°F39°F46%1019.8 hPa

Link to 5 minute data for KILM

Wind History from ILM (wind in knots)
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1 day agoNE9NE4N4W8N5NE7NE5NE5NE3NE3CalmCalmW4SW9SW8SW10SW12SW9S5SW9W10W12W14
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2 days agoNE12N13NE11NE9NE9NE11NE9NE10NE7NE6NE6N6NE6N4NE6NE6NE6N4N4N6NE7N8N8NE9

Tide / Current Tables for New Topsail Inlet, North Carolina
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New Topsail Inlet
Click for Map
Sun -- 03:53 AM EST     -0.15 feet Low Tide
Sun -- 07:09 AM EST     Sunrise
Sun -- 09:40 AM EST     3.55 feet High Tide
Sun -- 10:13 AM EST     Moonset
Sun -- 04:49 PM EST     -0.12 feet Low Tide
Sun -- 05:01 PM EST     Sunset
Sun -- 08:40 PM EST     Moonrise
Sun -- 10:10 PM EST     2.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.10.4-0-0.10.20.91.92.83.43.53.22.71.91.10.4-0-0.10.20.91.82.52.82.7

Tide / Current Tables for Castle Hayne, Northeast River, North Carolina
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Castle Hayne
Click for Map
Sun -- 01:51 AM EST     1.68 feet High Tide
Sun -- 07:10 AM EST     Sunrise
Sun -- 09:03 AM EST     -0.08 feet Low Tide
Sun -- 10:14 AM EST     Moonset
Sun -- 02:03 PM EST     2.03 feet High Tide
Sun -- 05:03 PM EST     Sunset
Sun -- 08:41 PM EST     Moonrise
Sun -- 09:56 PM EST     0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.61.71.61.410.60.30.1-0.10.10.71.41.9221.81.51.10.80.50.200.3

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 (13,3,4,5)
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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 numerious 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.