Tuesday, July27, 2021
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Marine Weather and Tides
Myrtle Grove, NC

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:18AMSunset 8:18PM Tuesday July 27, 2021 1:46 AM EDT (05:46 UTC) Moonrise 9:58PMMoonset 8:52AM Illumination 92% Phase: Waning Gibbous; Moon at 18 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- 133 Am Edt Tue Jul 27 2021
Rest of tonight..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Tue..SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 3 ft. A chance of showers and tstms.
Tue night..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. Vsby 1 to 3 nm after midnight.
Wed..SW winds 5 to 10 kt, becoming S in the afternoon. Seas 3 ft. A chance of showers and tstms.
Wed night..S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the evening.
Thu..W winds 5 kt, becoming S in the afternoon. Seas 2 to 3 ft.
Thu night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft.
Fri..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms through the night.
Sat..S winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
AMZ200 133 Am Edt Tue Jul 27 2021
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Weak tropical low will move into georgia through tonight. Bermuda high pressure and the approach of a front will maintain southerly winds with increasing showers and Thunderstorms Tuesday into Wednesday.


7 Day Forecast for Marine Location Near Myrtle Grove, NC
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location: 34.11, -77.83     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 270527 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 127 AM EDT Tue Jul 27 2021

SYNOPSIS. Shower and thunderstorm chances will increase through Wednesday ahead of a front. Dry weather briefly returns Thursday before rain chances increase into the weekend. Hot temperatures on Friday with high humidity, could result in heat advisories.

UPDATE. No big edits or earth-shaking changes. Fog could raise its head into pre-dawn inland, while marine showers attempt to clip Cape Fear. Minor tidal flooding on the lower Cape Fear will abate by 3 am.

NEAR TERM /THROUGH WEDNESDAY/. For the overnight hours, will maintain chance PoPs for showers or a possible tstm that advect northward off the ocean and may impact coastal counties. Similar to last night, inland locations will likely see patchy, dense fog develop after midnight, as dewpoints have surged into the mid 70s.

Tuesday appears to be shaping up much like today, although areal coverage of showers/tstms should be a little greater than today. This would be the result of increasing 1000-500 mb mean RH, which will be encroaching on the area from the north, ahead of a dissipating front, as well as from the south in the circulation around the SE GA surface low. Expect chance for morning convection to be highest near the coast, slowly transitioning inland through the afternoon. Shower/tstm activity should become more organized to the west of the forecast area during the day, closer to the dissipating frontal boundary. A shortwave is expected to shove this activity eastward to the coast overnight Tuesday night.

Plan on raising a Coastal Flood Advisory for the lower Cape Fear River for the overnight high tide, which will occur at downtown ILM around 12:45 AM. Along the coast zones, it appears we will remain below minor flooding thresholds.

SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/. Mid-level trough axis over much of the East Coast Wed morning will shift offshore during the day. This will setup an extended period of northwest flow aloft. Troughing aloft will persist through Thu night, but the flow will result in deep dry air spreading over the area for Thu. Deep moisture and surface trough/low combo Wed morning will keep elevated chance for showers and thunderstorms into midday before drier air aloft starts spreading in from the northwest. Thu looks dry with environment unfavorable and forecast soundings depicting healthy mid-level inversion. Region will be on the southeast periphery of an elongated mid-level ridge, accounting for some of the subsidence. Temperatures near to below climo Wed will jump above climo Thu with potential for triple digit heat in a few locations. Westerly flow will try to keep the sea breeze pinned on Thu, but flow at 900mb is on the light side, under 10 kt. Sea breeze will likely be able to overcome this, but it could take a bit longer to develop and move inland at a slower rate.

LONG TERM /FRIDAY THROUGH MONDAY/. Pattern aloft will consist of broad troughing into next week. The trough is strengthened early next week by strong shortwave moving over the Great Lakes. Trough on Fri pushes a surface boundary into the region which then stalls in the area, keeping weather unsettled. A stronger front is pushed into the region Mon by the next shortwave, giving a boost to rainfall chances. Some discrepancy on whether the second front ends up stalled Mon or pushes off the coast. Something to watch for now.

- Limited rainfall chances Fri with increasing rain chances each day Sat through Mon

- Highs 5-10 degrees above climo Fri drop back near climo Sat-Mon

- Lows above climo Fri night then near climo Sat night on

AVIATION /05Z TUESDAY THROUGH SATURDAY/. VFR, except MVFR ceilings and IFR VSBY possible between 8z-12z, fog favored inland where a little less wind is to reside. Winds becoming S today 7-12 knots, highest at the coast with a bit of afternoon gustiness as is normal in a sea breeze. Showers possible at coast 15z-17z, then VCTS inland aft 18z. Rain may be heavy and VSBY will decline in TSTMs, erratic surface winds in vicinity of TSTMs. Diminishing showers and storms between 0z-6z.

Extended Outlook . Thunderstorm coverage should remain a bit more widespread through Wednesday with potential for MVFR and brief IFR visibility then. VFR expected Thurs and Fri with return of possible MVFR with another front into the weekend.

MARINE. Through Tuesday night: Surface winds will remain generally out of the SSW tonight through Tuesday night, between Bermuda high pressure and the remnant low pressure that is currently making its way into coastal GA. That feature will dissipate, but will be a source of moisture that will contribute to an increase in areal coverage of showers and tstms over the next couple of days.

Wednesday through Saturday: High pressure will remain off the Southeast coast into the weekend with southwest flow the dominant regime. May see a brief period of offshore Thu and Sat mornings, as weak surface boundaries try to move offshore. Weak gradient Wed and Sat will keep southwest flow closer to 10 kt. Thu and Fri gradient tightens with surface boundary approaching. On Thu 10 to 15 kt will be possible with 15 to 20 kt expected Fri. Seas 2 to 3 ft Wed and Thu build to around 4 ft Fri and Fri night before dropping to 3 to 4 ft Sat. Southeast swell will be dominant on Wed before the southerly wind wave becomes more pronounced Thu and then dominant on Fri and Sat.

ILM WATCHES/WARNINGS/ADVISORIES. SC . None. NC . Coastal Flood Advisory until 3 AM EDT early this morning for NCZ107. MARINE . None.



SYNOPSIS . ILM UPDATE . Colby NEAR TERM . CRM SHORT TERM . III LONG TERM . III AVIATION . 8 MARINE . III/CRM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MBIN7 2 mi47 min SW 6 G 9.9 82°F 1014.8 hPa (-0.4)
MBNN7 4 mi47 min SSW 6 G 12 82°F 1015.3 hPa (+0.0)
41110 - Masonboro Inlet, NC 6 mi40 min 83°F3 ft
41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC 6 mi99 min SW 12 G 16 83°F 83°F1015.9 hPa
JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC 7 mi137 min SSW 12 G 14 82°F 82°F1015.4 hPa
WLON7 10 mi137 min 80°F 83°F1015.8 hPa
41037 - ILM3 - 27 miles SE of Wrightsville Beach, NC 26 mi39 min S 12 G 18 82°F 82°F1015.4 hPa
41108 29 mi47 min 82°F3 ft
41024 - Sunset Nearshore (SUN 2) 39 mi39 min SW 14 G 18 82°F 85°F1016.4 hPa
SSBN7 39 mi30 min 84°F3 ft
41013 - Frying Pan Shoals, NC Buoy 46 mi37 min SSW 12 G 14 82°F 83°F1015.8 hPa78°F
41064 47 mi39 min SSW 12 G 16 82°F 1015.8 hPa
41159 47 mi51 min 82°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 mi54 minS 610.00 miFair81°F77°F88%1015.4 hPa
Brunswick County Airport, NC18 mi52 minSSW 410.00 miPartly Cloudy81°F76°F83%1015.9 hPa

Link to 5 minute data for KILM

Wind History from ILM (wind in knots)
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Last 24hrCalmNE3CalmCalmCalmCalmW4CalmS3SW6SW6S9S11
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S11S8S8S9S10S7S6S4S5S4S6
1 day agoCalmCalmCalmCalmCalmCalmNE3CalmE4SE5SE3SE6SE7SE9E8SE8S7SE5S6S4S4CalmCalmCalm
2 days agoN3CalmNE4CalmNE3CalmNE3NE4E7E10NE9E9E8E7SE8
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Tide / Current Tables for Masonboro Inlet, North Carolina
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Masonboro Inlet
Click for Map
Tue -- 05:21 AM EDT     -0.03 feet Low Tide
Tue -- 06:18 AM EDT     Sunrise
Tue -- 09:52 AM EDT     Moonset
Tue -- 11:18 AM EDT     3.80 feet High Tide
Tue -- 05:31 PM EDT     0.17 feet Low Tide
Tue -- 08:16 PM EDT     Sunset
Tue -- 10:58 PM EDT     Moonrise
Tue -- 11:43 PM EDT     4.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.23.52.51.40.500.10.81.82.73.43.83.73.22.41.50.70.20.20.81.72.73.54.1

Tide / Current Tables for Wilmington Beach, North Carolina
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Wilmington Beach
Click for Map
Tue -- 04:38 AM EDT     -0.03 feet Low Tide
Tue -- 06:19 AM EDT     Sunrise
Tue -- 09:53 AM EDT     Moonset
Tue -- 10:44 AM EDT     3.96 feet High Tide
Tue -- 04:48 PM EDT     0.18 feet Low Tide
Tue -- 08:16 PM EDT     Sunset
Tue -- 10:58 PM EDT     Moonrise
Tue -- 11:09 PM EDT     4.36 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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431.90.80.100.61.52.43.33.83.93.62.91.910.40.20.61.52.53.444.4

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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