Wednesday, December11, 2019
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Marine Weather and Tides
Shell Point, SC

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 7:12AMSunset 5:19PM Wednesday December 11, 2019 3:45 AM EST (08:45 UTC) Moonrise 5:07PMMoonset 6:30AM Illumination 100% Phase: Full Moon; Moon at 14 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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AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 313 Am Est Wed Dec 11 2019
.small craft advisory in effect from noon est today through Friday afternoon...
Today..N winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft this afternoon. A slight chance of showers this morning.
Tonight..NE winds 25 to 30 kt. Seas 4 to 6 ft, building to 5 to 7 ft after midnight.
Thu..NE winds 25 to 30 kt. Seas 6 to 8 ft. A slight chance of showers in the afternoon.
Thu night..NE winds 20 to 25 kt with gusts to 35 kt, diminishing to 15 to 20 kt with gusts to 25 kt after midnight. Seas 6 to 8 ft, subsiding to 5 to 7 ft after midnight. A chance of showers.
Fri..NE winds 10 to 15 kt with gusts to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 4 to 6 ft. Showers.
Fri night..S winds 5 to 10 kt, becoming sw after midnight. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. A chance of showers.
Sat..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Sat night..W winds 10 to 15 kt. Seas 3 to 4 ft.
Sun..NW winds 5 to 10 kt. Seas 2 to 3 ft.
Sun night..S winds 5 kt. Seas 2 ft.
AMZ300 313 Am Est Wed Dec 11 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Strong high pressure will build north of the area through Thursday. A low pressure system will impact the area late week, followed by a return to high pressure during the latter half of the weekend. A cold front will cross the area by the middle of next week.


7 Day Forecast for Marine Location Near Shell Point, SC
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location: 32.29, -80.8     debug


Area Discussion for - Charleston, SC
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FXUS62 KCHS 110604 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 104 AM EST Wed Dec 11 2019

SYNOPSIS. A cold front will push through the region tonight, with strong high pressure to build over the area Wednesday through Thursday. A low pressure system will impact the area late week, followed by a return to high pressure over the weekend into early next week.

NEAR TERM /UNTIL 6 AM THIS MORNING/. Overnight: Cold front was moving through the coastal corridor since midnight and temps were starting to descend in the wake of the wind shift. Most of the post frontal showers were across the CSRA and SC Midlands and 00Z models indicate any overnight showers should be sporadic and mainly brief. We held onto chance POPs. Mostly initialization tweaks on the midnight update.

SHORT TERM /6 AM THIS MORNING THROUGH FRIDAY/. Strong high pressure will build over the area from the northwest Wednesday, then shift east toward New England on Thursday. Much cooler air will move into the area with high temps only in the 50s both days.

A developing upper trough over the eastern United States late Thursday will bring several upper shortwaves through the area late Thursday through Friday. Meanwhile, an inverted trough will develop off the SC/GA coast, gradually developing into a closed low pressure system before moving up the coast late Friday. Moisture will begin to overspread the cool surface wedge late Thursday afternoon, potentially bringing a few showers to the area.

More significant moisture and forcing will affect the area late Thursday night through Friday evening, resulting in widespread showers. Given uncertainty in track of the low, temperature forecast is a bit tricky. Current forecast shows highs ranging from the mid 50s inland to low 60s at the coast.

LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/. Models are in decent agreement through the long term period. Low pressure and associated rainfall is expected to be exiting the area Friday night into Saturday. High pressure will return in its wake, with dry conditions expected for the latter half of the weekend and early next week. Temperatures will generally be above normal.

AVIATION /06Z WEDNESDAY THROUGH SUNDAY/. MVFR cigs expected for the overnight into mid morning with a potential for some cigs below 1 kft at times in the wake of a cold front. Cigs should lift to VFR late morning and early afternoon as much drier air moves over the region. Winds will shift to N and NNE and gust to near 20 kt at times today.

Extended Aviation Outlook: Flight restrictions are likely Thursday night through Friday night as a low pressure system impacts the area. VFR is expected to return on Saturday.

MARINE. Overnight: The front was moving off the coast early this morning and winds will shift around to NW and N by sunrise Wednesday. Speeds will be increasing, but should generally be around 15 knots late tonight. Seas will average 3-5 feet.

Strong high pressure building in from the northwest will result in strengthening north to northeast winds Wednesday through Thursday, along with building seas. Solid Small Craft Advisory conditions are expected everywhere except Charleston Harbor starting at varying times Wednesday. An Advisory is likely for the Charleston Harbor at some point as well, however it appears winds will not reach criteria until Wednesday night, so have held off on issuing for now.

The worst conditions across the waters will occur late Wednesday night through Thursday, when gale-force gusts will be possible. Gale Watches and/or Warnings could be needed for at least portions of the waters. Conditions will improve on Friday, although advisories will persist as seas take a bit longer to subside.

Low pressure will pass over or near the waters late week into early weekend, followed by a return to high pressure. No additional concerns are expected at this time.

TIDES/COASTAL FLOODING. Elevated tide cycles are expected late week due to increasing astronomical influences with the full moon on Thursday and strong northeasterly winds. Minor to moderate coastal flooding will be possible with the morning high tides Thursday through Saturday. Coastal Flood Advisories could be required. Also of note, if significant rainfall occurs around the morning high tides Friday and Saturday, the potential for flooding of poor drainage areas could increase along the coast.

EQUIPMENT. KCLX will remain down until further notice.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . None. MARINE . Small Craft Advisory from noon today to 4 PM EST Friday for AMZ352-354. Small Craft Advisory from 7 AM this morning to 4 PM EST Saturday for AMZ374. Small Craft Advisory from 7 AM this morning to 4 AM EST Saturday for AMZ350.

NEAR TERM . NED SHORT TERM . JRL LONG TERM . ETM AVIATION . NED MARINE . BSH/JRL TIDES/COASTAL FLOODING . EQUIPMENT .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 18 mi52 min NW 8.9 G 11 63°F 59°F1020.2 hPa
41033 21 mi38 min NNW 5.8 G 7.8 60°F 58°F1020.3 hPa
ACXS1 - ACE Basin Reserve, SC 26 mi61 min Calm 62°F 1019 hPa61°F
FBIS1 - Folly Island, SC 56 mi46 min N 8 G 8.9 62°F 1019.5 hPa (+0.5)62°F

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hilton Head Island, Hilton Head Airport, SC7 mi51 minVar 510.00 miOvercast63°F62°F100%1020.3 hPa
Beaufort County Airport, SC12 mi51 minWNW 77.00 miOvercast61°F60°F100%1019.6 hPa
Beaufort, Marine Corps Air Station, SC14 mi50 minWNW 710.00 miOvercast65°F63°F93%1019.9 hPa
Savannah-Hilton Head International Airport, GA24 mi53 minWNW 1010.00 miOvercast64°F60°F87%1020.4 hPa

Link to 5 minute data for KHXD

Wind History from HXD (wind in knots)
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1 day ago65NE4NE6NE5NE3Calm3CalmS6S7S7S7S7S7S8S8S11
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2 days agoNE11N11N8N8N12N12NE11N11N9N8N8NE4CalmCalmCalmNE5NE5NE4N3NE6365
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Tide / Current Tables for Victoria Bluff, South Carolina
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Victoria Bluff
Click for Map
Wed -- 01:39 AM EST     -0.29 feet Low Tide
Wed -- 06:30 AM EST     Moonset
Wed -- 07:14 AM EST     Sunrise
Wed -- 08:05 AM EST     8.53 feet High Tide
Wed -- 02:13 PM EST     0.09 feet Low Tide
Wed -- 05:07 PM EST     Moonrise
Wed -- 05:18 PM EST     Sunset
Wed -- 08:24 PM EST     7.20 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.2-0-0.20.72.54.66.588.58.16.84.82.60.90.10.41.63.356.47.176.14.4

Tide / Current Tables for Savannah River Entrance, Georgia Current (2) (expired 1999-12-31)
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Savannah River Entrance
Click for Map
Wed -- 02:30 AM EST     0.00 knots Slack
Wed -- 04:58 AM EST     1.78 knots Max Flood
Wed -- 06:30 AM EST     Moonset
Wed -- 07:13 AM EST     Sunrise
Wed -- 08:04 AM EST     -0.00 knots Slack
Wed -- 11:46 AM EST     -2.66 knots Max Ebb
Wed -- 03:16 PM EST     0.00 knots Slack
Wed -- 05:07 PM EST     Moonrise
Wed -- 05:19 PM EST     Sunset
Wed -- 05:25 PM EST     1.42 knots Max Flood
Wed -- 08:11 PM EST     -0.00 knots Slack
Wed -- 11:58 PM EST     -2.42 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.2-1.5-0.60.51.51.81.50.80.1-0.8-1.7-2.5-2.6-2.2-1.4-0.30.71.41.30.80.1-0.6-1.4-2.1

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 Charleston, SC (3,6,7,8)
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Ground Weather Radar Station Charleston, SC
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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.