Friday, October18, 2019 L-36.com


Marine Weather and Tides
Hollywood, 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 7:24AMSunset 6:44PM Friday October 18, 2019 7:57 PM EDT (23:57 UTC) Moonrise 9:12PMMoonset 10:46AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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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AMZ330 Charleston Harbor- 710 Pm Edt Fri Oct 18 2019
.gale watch in effect from Saturday morning through late Saturday night...
Tonight..E winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt late. A slight chance of showers after midnight.
Sat..E winds 15 to 20 kt with gusts to 25 kt, becoming se 25 to 30 kt with gusts to 40 kt in the afternoon. Waves 2 to 4 ft. Showers in the morning, then showers with a slight chance of tstms in the afternoon. Locally heavy rainfall possible in the afternoon.
Sat night..SE winds 25 to 30 kt with gusts to 40 kt, becoming S 15 to 20 kt with gusts to 30 kt after midnight. Waves 2 to 4 ft. Showers with a slight chance of tstms in the evening, then showers after midnight. Locally heavy rainfall possible in the evening.
Sun..W winds 15 to 20 kt, becoming nw 10 kt in the afternoon. Waves 1 to 2 ft. A chance of showers in the morning.
Sun night..N winds 5 to 10 kt.
Mon..E winds 5 to 10 kt.
Mon night..SE winds 5 to 10 kt. A chance of showers.
Tue..SW winds 10 to 15 kt. A chance of showers.
Tue night..NW winds 10 kt. A chance of showers.
Wed..N winds 5 to 10 kt.
Wed night..NE winds 5 to 10 kt. Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 75 degrees.
AMZ300 710 Pm Edt Fri Oct 18 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A storm system in the gulf of mexico will move northeast over or near the area Saturday bringing unsettled weather through Saturday night. A cold front will then move through Tuesday, followed by dry high pressure.


7 Day Forecast for Marine Location Near Hollywood, SC
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location: 32.73, -80.07     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 182341
afdchs
area forecast discussion
national weather service charleston sc
741 pm edt Fri oct 18 2019

Synopsis
A storm system in the gulf of mexico will move northeast over
or near the area Saturday bringing unsettled weather through
Saturday night. A cold front will then move through Tuesday,
followed by dry high pressure.

Near term until 6 am Saturday morning
High pressure will lose influence tonight as a low pressure
system, which is tropical storm nestor as of the 5 pm edt
advisory from the nhc, tracks northeast toward the central fl
panhandle. Increasing deep moisture and forcing ahead of nestor
will spread into northern portions of southeast ga toward
midnight and then southeast sc toward daybreak with showers
developing as well. Most of the rain should remain south of
charleston however, mainly totaling a quarter of an inch or
less, mainly south of i-16. Low temperatures will be near to
above normal, likely occurring earlier in the night than usual
(especially in ga) as cloud cover and winds begin to ramp up,
generally ranging from near 50 north of lake moultrie to the
mid-upper 60s near the ga coast.

Short term 6 am Saturday morning through Monday
Tropical storm nestor is forecast to make a quick transition to a
post extra tropical entity after making landfall along the florida
panhandle prior to 12z Saturday. While just about all of the
convective and non-convective rains have been in the eastern semi-
circle of the system prior to landfall, we expect transition to a
more mature non-tropical low later Saturday with a developing
dry slot wrapping into the system. Categorical pops are in
order for all areas as rains spread north through the morning
hours. Winds will also be increasing as the low moves northeast
through southern ga in the afternoon. We may need a wind
advisory for coastal areas during the afternoon hours as the
gradient tightens. Low level instability is in question as
heavier rains may tend to keep surface temps in the 60s to the
west of i-95 through much of the day. Latest guidance suggests
the tornado potential could be confined to immediate coastal
areas of SE ga during the afternoon and shift to the sc coast in
the evening. Mucapes over 500 j kg are generally progged
offshore by both the GFS ecmwf.

The surface low is forecast to move quickly northeast of the
forecast area after midnight to a position along the nc coast by 12z
Sunday. Rains will end from SW to NE Saturday night with the flow
veering to offshore around daybreak on Sunday.

High pressure will return during Sunday into Monday with dry weather
with highs in the mid upper 70s on Sunday and upper 70s to lower 80s
on Tuesday.

Long term Monday night through Friday
A cold front will sweep through Tuesday accompanied by
scattered to numerous showers. Dry high pressure will then build
in from the west through Thursday night. A strong cold front
could bring another chance for rain late Friday.

Aviation 00z Saturday through Wednesday
Vfr will prevail until about 12z at ksav and 18z at kchs as
deeper moisture and some heavier rains spread north across the
area in association with what is currently tropical storm
nestor. We trended a bit slower on the timing of restrictions
per the latest guidance but do so ifr toward 15z at ksav and 18z
at kchs. In addition, wind gusts near 30 kt are expected. There
may even be a period of low-level wind shear around daybreak at
ksav as surface winds remain about 10 kt or less and 2k ft winds
increase to near 30-35 kt but confidence is too low to mention
at this point.

Extended aviation outlook: flight restrictions are likely
through midday Sunday as wrap-around low clouds will begin the
day before clearing out in the afternoon. Brief flight
restrictions possible again on Tuesday with a cold front and
scattered showers.

Marine
Tonight: a low pressure system currently over the gulf of mexico
will lift northeast into the florida panhandle tonight. As this
occurs, the pressure gradient will tighten and conditions will
deteriorate from south to north. Late tonight, easterly winds
are expected to be gusting in the 25-30 knot range south of
edisto beach, especially across the georgia waters, and a small
craft advisory is in place until 8 am when the risk of gale
force wind gusts begin.

Saturday through Wednesday: hazardous conditions with develop
with the approach of post extra tropical storm nestor on
Saturday. Strong low pressure will quickly shift northeast
through SE ga and southern sc into Saturday evening. The low
will move northeast of the waters by early Sunday. Gale watches
will likely be upgraded to gale warnings tonight as strong gusty
winds expected to impact the waters with gusts up to 35-40 kt.

Seas will build to 6 to 9 ft near shore and up to 11 ft offshore
by late Saturday. We think a high surf advisory will likely be
needed as seas build during the day Saturday.

Conditions will improve on Sunday as low pressure continues to move
away and winds shift more offshore. Seas will also gradually subside.

A cold front will approach the waters late Monday night and move off
the coast late Tuesday. Cooler and drier air in the wake of the
front will result in another decent surge and possible small craft
advisories.

Hydrology
Deep tropical moisture W pwats near 2.25 inches will spread
into the region from florida and the eastern gulf of mexico
later tonight and Saturday. The increasing forward speed of the
low pressure system will tend to keep storm total rainfall
amounts below 4 inches across the region, although isolated
amounts could be higher. On this package we raised total storm
qpf amounts to 2.5-3.5 inches. We expect a good possibility for
localized minor flooding, and flood advisories will likely be
needed Saturday afternoon and evening.

Tides coastal flooding
Increasing onshore flow will result in building tidal departures and
the risk for minor moderate coastal flooding around the midday
Saturday high tide along the entire coast. Flooding could be
worsened by ongoing rainfall.

Chs watches warnings advisories
Ga... High rip current risk from Saturday morning through Saturday
evening for gaz117-119-139-141.

Sc... High rip current risk from Saturday morning through Saturday
evening for scz048>051.

Marine... Gale watch from Saturday morning through late Saturday night
for amz330-350-352-354-374.

Small craft advisory from 5 am to 8 am edt Saturday for amz352.

Small craft advisory from 2 am to 8 am edt Saturday for amz354-
374.

Near term... Rjb
short term...

long term... Jrl
aviation... Rjb
marine... Etm
hydrology...

tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHTS1 9 mi58 min ENE 6 G 7 67°F 75°F1016.2 hPa (+0.0)
FBIS1 - Folly Island, SC 10 mi58 min ENE 5.1 G 7 67°F 1016.6 hPa (+0.0)49°F
41029 - Capers Nearshore (CAP 2) 24 mi50 min ENE 3.9 G 5.8 67°F 74°F1016.8 hPa
ACXS1 - ACE Basin Reserve, SC 24 mi73 min E 1 65°F 1016 hPa56°F
41033 36 mi50 min E 12 G 18 68°F 75°F1015.3 hPa
41004 - EDISTO - 41 NM Southeast of Charleston, SC 54 mi38 min NE 7.8 G 9.7 79°F1016 hPa

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC4 mi63 minN 08.00 miFair63°F53°F73%1016.3 hPa
Charleston, Charleston Air Force Base, SC13 mi62 minENE 310.00 miOvercast60°F50°F70%1016 hPa
Mount Pleasant Regional-Faison Field, SC19 mi63 minN 010.00 miFair59°F53°F82%1016.3 hPa

Link to 5 minute data for KJZI

Wind History from JZI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmN5N9N6N6N9
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1 day agoCalmCalmW5W8W8W5W5W4W5W6NW6NW5CalmNW4N75Calm4CalmNW56NW3CalmCalm
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Tide / Current Tables for Church Creek bridge, Wadmalaw River, South Carolina
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Church Creek bridge
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Fri -- 12:53 AM EDT     6.73 feet High Tide
Fri -- 06:12 AM EDT     0.73 feet Low Tide
Fri -- 07:26 AM EDT     Sunrise
Fri -- 11:46 AM EDT     Moonset
Fri -- 01:22 PM EDT     7.94 feet High Tide
Fri -- 06:44 PM EDT     Sunset
Fri -- 06:52 PM EDT     1.15 feet Low Tide
Fri -- 10:11 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.66.76.24.93.11.50.80.91.93.356.57.47.97.76.64.82.91.61.21.62.63.95.1

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
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Charleston Harbor Entrance
Click for Map
Fri -- 02:45 AM EDT     -2.01 knots Max Ebb
Fri -- 05:40 AM EDT     0.00 knots Slack
Fri -- 07:25 AM EDT     Sunrise
Fri -- 08:35 AM EDT     1.69 knots Max Flood
Fri -- 11:45 AM EDT     Moonset
Fri -- 12:08 PM EDT     -0.00 knots Slack
Fri -- 03:27 PM EDT     -2.17 knots Max Ebb
Fri -- 06:36 PM EDT     0.00 knots Slack
Fri -- 06:43 PM EDT     Sunset
Fri -- 09:03 PM EDT     1.32 knots Max Flood
Fri -- 10:10 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.4-1.3-1.9-2-1.6-0.70.31.11.61.61.20.70.1-0.8-1.6-2.1-2.1-1.5-0.50.311.31.10.5

Weather Map
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wmap_A
GEOS Local Image of Southeast    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 (19,4,5,8)
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Ground Weather Radar Station Charleston, SC
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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.