Wednesday, July17, 2019 L-36.com


Marine Weather and Tides
Calabash, NC

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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 6:16AMSunset 8:27PM Wednesday July 17, 2019 6:19 AM EDT (10:19 UTC) Moonrise 8:13PMMoonset 5:47AM Illumination 100% Phase: Full Moon; Moon at 15 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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AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 309 Am Edt Wed Jul 17 2019
Today..SW winds 10 kt, becoming S 10 to 15 kt this afternoon. Seas 2 to 3 ft.
Tonight..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Thu..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. A slight chance of showers and tstms.
Thu night..SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. A chance of showers and tstms.
Fri..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sat..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms.
AMZ200 309 Am Edt Wed Jul 17 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Weak high pressure offshore and weak troughing across the central carolinas will result in light S to sw winds and benign seas today. For late tonight into Saturday, a boundary will slowly approach the waters from the mainland resulting in an increase in winds and seas respectively.


7 Day Forecast for Marine Location Near Calabash, NC
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location: 33.86, -78.57     debug


Area Discussion for - Wilmington, NC
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Fxus62 kilm 170626
afdilm
area forecast discussion
national weather service wilmington nc
226 am edt Wed jul 17 2019

Synopsis
Heat and humidity will continue into early next week as ridging
from high pressure anchored well offshore from the southeast
u.S. Coast, extends inland across florida. Showers and
thunderstorms will be isolated at first but they will become
more widespread next week. A cold front will arrive and break
the heat Tuesday or Wednesday.

Near term through Thursday
As of 300 am Wednesday... Main concern for the next 36 hours is
afternoon high heat indices that could result in heat illnesses.

Building high pressure aloft and southerly wind flow at ground level
will allow afternoon temperatures to rise into the mid to upper 90s
inland, with values closer to the coast in the upper 80s to lower
90s. Regardless of how high afternoon temperatures actually reach,
the combination with dew points in the mid to upper 70s will result
in afternoon heat indices up to 106+ for many locations. Heat
illnesses are possible for those spending time outdoors during the
hours of 12 pm to 7 pm this evening.

Afternoon instability remains across the area today with plenty of
afternoon heating, which will likely lead to another round of
isolated showers and thunderstorms during the peak afternoon
heating. Latest short term high resolution guidance also hints at
precipitation development, but with lack of upper level wind, storms
are not expected to be severe.

Heat and chances for afternoon showers and thunderstorms continue to
be the headlines in the forecast for Thursday.

Short term Thursday night through Friday night
As of 300 am Wednesday... Mid level ridging will be broad and
expansive through the period across a good part of the country. It
will not be strong enough to cap all convection however and there
may even be some weak shortwave energy that drops in from the
northwest. The seabreeze shouldn't progress too far inland but will
serve as a convective initiation mechanism as will the well defined
inland piedmont trough. Pops will thus be fairly uniform across the
area and as usual will have a diurnal afternoon maximum (though
there may be enough shortwave energy Thursday night for a less than
normal diurnal decrease in storms, at least compared to Friday
night). Temperatures will be elevated a few degrees above
climatology but high dewpoints will once again offer up advisory-
worthy heat indices.

Long term Saturday through Tuesday
As of 300 am Wednesday... Mid level ridge surface piedmont trough
will be in place over the weekend, though the former weakens on
Sunday. Interestingly guidance is not suggesting any increase in qpf
on Sunday. The inherited forecast didn't either and so no tweaks to
pops have been made. Afternoon heat advisories seem likely once
again both days. Monday and Tuesday will bring about a gradual
pattern change as a trough tries to get established in the eastern
us. Thunderstorm coverage should increase on Monday as the
suppressing effects of the mid level ridge wanes but temperatures
will remain hot enough that yet another heat advisory appears
likely. Even higher rain chances slated for Tuesday as cold front
approaches while increased cloud cover should finally preclude a
heat advisory.

Aviation 06z Wednesday through Sunday
As of 06z...VFR for area terminals for the next 24 hours.

Showers and thunderstorms expected to develop in the afternoon
hours in the vicinity of airports with moderate confidence in
development, but low confidence on actual locations of afternoon
storms.

Extended outlook...VFR conditions are expected outside any isolated
to widely scattered convection the first part of the upcoming
week.

Marine
Light southerly winds with afternoon gusts up to 20-25 kts as sea
breeze circulation develops for the next 36 hours. Wave heights
between 2 to 4 feet expected out of the southwest around 4 to 6
seconds with swell from the southeast around 10 seconds.

Winds will remain out of the southwest Thursday night through Friday
night as high pressure remains well offshore. A well defined
piedmont trough will bolster wind speeds by about a category, which
should maintain the offshore 4 ft wave. The mainly wind driven seas
will coexist with a 2 ft 9 second southeasterly swell. Previous
forecasts had very slightly weaker winds Saturday and Sunday but now
this is less certain. The trough may maintain its strength and so
winds may as well. Have trended the forecast accordingly. Weekend
seas will remain similar to those during the week.

Ilm watches warnings advisories
Sc... Heat advisory from 11 am this morning to 7 pm edt this evening
for scz017-023-024-032-033-039-054>056-058-059.

Beach hazards statement from 6 am edt this morning through
this evening for scz054-056.

Nc... Heat advisory from 11 am this morning to 7 pm edt this evening
for ncz087-096-099-105>110.

Beach hazards statement from 6 am edt this morning through
this evening for ncz106-108.

Marine... None.

Near term... Mck
short term... mbb
long term... mbb
aviation... Mck


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
41024 - Sunset Nearshore (SUN 2) 5 mi72 min SW 12 G 16 83°F 85°F1018.4 hPa
41119 5 mi30 min 85°F2 ft
MROS1 - 8661070 - Springmaid Pier, SC 23 mi50 min 81°F
41108 31 mi50 min 84°F2 ft
WLON7 41 mi56 min 81°F 86°F1018.6 hPa
JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC 48 mi50 min SSE 2.9 G 4.1 80°F 79°F1018.2 hPa
NIWS1 - North Inlet-Winyah Bay Reserve, SC 48 mi95 min Calm 80°F 1018 hPa80°F
41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC 49 mi72 min SW 7.8 G 9.7 81°F 82°F1018.4 hPa
41110 - Masonboro Inlet, NC 49 mi40 min 82°F2 ft

Wind History for Springmaid Pier, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
North Myrtle Beach Grand Strand Airport, SC9 mi27 minSW 410.00 miFair80°F79°F97%1018.5 hPa
Myrtle Beach Air Force Base, SC22 mi24 minSW 310.00 miFair80°F78°F94%1018.7 hPa

Wind History from CRE (wind in knots)
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Last 24hrCalmW4SW3S3S4S5S7S9S11S11S11S8SW9S9S7S7S8S7S8SW8SW6SW7SW5SW4
1 day agoN3N4N5N3S4S9S8S6S7S8S9S8SW10SW10SW7SW3CalmCalmCalmCalmCalmCalmCalmSW3
2 days agoW4W6W9NW4NW3W3SW6S5S6S7S8SW7SW5SW5W4W3W3CalmW4W4CalmW3CalmNW3

Tide / Current Tables for Dunn Sound, Little River Inlet, South Carolina
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Dunn Sound
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Wed -- 03:22 AM EDT     0.16 feet Low Tide
Wed -- 06:15 AM EDT     Sunrise
Wed -- 06:46 AM EDT     Moonset
Wed -- 08:54 AM EDT     4.25 feet High Tide
Wed -- 03:21 PM EDT     0.04 feet Low Tide
Wed -- 08:24 PM EDT     Sunset
Wed -- 09:12 PM EDT     Moonrise
Wed -- 09:25 PM EDT     5.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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31.80.80.20.31.22.33.344.243.32.41.40.60.10.21.12.43.74.65.25.24.6

Tide / Current Tables for Myrtle Beach Airport, South Carolina
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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wmap_A
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 (6,6,7,8)
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Ground Weather Radar Station Wilmington, NC
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Disclaimer:
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.