Tuesday, May21, 2019 L-36.com


Marine Weather and Tides
Hilton Head Island, SC

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:20AMSunset 8:19PM Tuesday May 21, 2019 2:27 AM EDT (06:27 UTC) Moonrise 10:10PMMoonset 7:39AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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- 1244 Am Edt Tue May 21 2019
Tonight..SW winds 10 to 15 kt. Seas 2 to 3 ft.
Tue..SW winds 10 kt. Seas 2 to 3 ft.
Tue night..S winds 5 to 10 kt. Seas 2 ft.
Wed..SE winds 5 to 10 kt. Seas 2 ft.
Wed night..E winds 10 to 15 kt, becoming se 5 to 10 kt after midnight. Seas 3 ft.
Thu..SE winds 5 to 10 kt. Seas 2 to 3 ft.
Thu night..S winds 10 kt. Seas 2 ft.
Fri..SW winds 10 to 15 kt. Seas 2 ft.
Fri night..SW winds 10 to 15 kt. Seas 2 ft.
Sat..SW winds 5 to 10 kt. Seas 2 ft.
Sat night..SE winds 5 to 10 kt. Seas 2 to 3 ft.
AMZ300 1244 Am Edt Tue May 21 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will build over the region this week and will linger into early next week.


7 Day Forecast for Marine Location Near Hilton Head Island, SC
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location: 32.22, -80.77     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 210532
afdchs
area forecast discussion
national weather service charleston sc
132 am edt Tue may 21 2019

Synopsis
High pressure will build over the region this week and will
linger into early next week.

Near term until 6 am this morning
Overnight: the mid-level ridge will remain over the region while
high pressure is in the atlantic. A poorly defined cold front
just to the west-northwest of the forecast area will move little
the rest of the night and the weather should remain dry. There
are mixed signals regarding fog for late tonight, with the best
chances to occur in the charleston tri-county. Probabilities are
too low, so no inclusion in the latest forecast.

Temps have been averaging near or a few degrees warmer than
this time last night, so lows tonight will be near or even a bit
warmer than last night.

Short term 6 am this morning through Thursday
Short term guidance indicates that a h5 ridge axis will ripple over
the region on Tuesday, with heights around 585 dm. The ridge will
gradually build to 595 dm by Thursday. At the sfc, high pressure
centered over new england on Tuesday, track south off the carolina
coast by Wednesday and Thursday. H85 temperatures under the ridge
are forecast to gradually warm to 16-18c through the period. High
temperatures on Tuesday are forecast to range from the mid 80s along
the coast to the mid 90s inland, warming by 1-2 degrees on Wednesday
and Thursday. By Thursday, mid 90s will be common west of i-95.

Dry weather is expected under the ridge on Tuesday and Thursday.

However, on Wednesday a ridge of sfc high pressure will begin to
build off the coast, veer flow from the southeast. The warm
temperatures and sfc winds should support a well developed sea
breeze Wednesday afternoon. I will add schc pops for the inland
counties for showers.

Long term Thursday night through Monday
Hot and dry conditions should prevail this weekend as deep layered
high pressure remains across the region. Friday afternoon temps
should top out in the mid upper 90s away from the coast. However,
warmest conditions should occur late weekend into early next week as
the mid upper lvl ridge makes a slight shift south, setting up a
northwest downslope flow across the region. This includes warmer
conditions along the beaches given the potential for a pinned
seabreeze each day. In general, Saturday and Sunday afternoon highs
should peak in the mid upper 90s away from the coast and upper 80s
along near the beaches. Temps could reach 100 degrees well inland
Saturday and Sunday, mainly along a corridor extending from
allendale hampton counties in southeast south carolina to tattnall
county in southeast georgia. The combination of heat and sfc dewpts
mixing out to the low mid 60s suggests heat index values around 100
degrees, mainly along and west of the i-95 corridor. Overnight lows
will likely be mild, generally in the low mid 70s each night.

Aviation 06z Tuesday through Saturday
Vfr at kchs ksav through 06z Wednesday.

Extended aviation outlook:VFR.

Marine
Overnight: atlantic high pressure will bring south to southwest
winds less than 15 kt. Seas will average 2-3 ft.

While conditions are not ideal, there are some indications that
as a convergence line forms off the coast there could be a
chance of waterspouts on the south carolina waters between
about 6 am and 11 am Tuesday.

Tuesday through Saturday: high pressure will remain over the marine
zones through late week. Conditions are forecast to remain below
small craft advisory criteria. Seas Tuesday through Thursday should
range from 1-3 feet, with 1-2 feet common Friday and Saturday. Winds
are expected to remain generally from the south around 10 kts.

Climate
Records for 05-27
station record high year(s)
------- ----------- -------
kchs 98 1989
kcxm 95 1962, 1926
ksav 98 1989, 1962

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term...

long term...

aviation...

marine...

climate...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 15 mi45 min SW 6 G 8 78°F1014.4 hPa
41033 20 mi79 min SSW 14 G 18 77°F 78°F1014 hPa
ACXS1 - ACE Basin Reserve, SC 29 mi102 min Calm 76°F 1015 hPa72°F
FBIS1 - Folly Island, SC 57 mi87 min SSW 9.9 G 12 77°F 1014.7 hPa (-0.6)74°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, SC4 mi32 minVar 610.00 miOvercast77°F71°F83%1014.2 hPa
Beaufort County Airport, SC15 mi32 minSSW 47.00 miPartly Cloudy75°F71°F89%1013.9 hPa
Savannah-Hilton Head International Airport, GA23 mi34 minSW 410.00 miMostly Cloudy75°F71°F88%1013.9 hPa
Hunter U. S. Army Airfield, GA24 mi31 minS 410.00 miMostly Cloudy76°F70°F82%1013.5 hPa

Wind History from HXD (wind in knots)
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Last 24hrS76S5S4W5S9SW9SW9S9S9S9SE9SE9SE11SE11S11S8S8S9S7
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2 days agoSW77SW5SW6SW7SW6SW5SW3SE6S5S6S6S6S6S10S6S6S6S7
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Tide / Current Tables for Skull Creek, south entrance, Hilton Head Island, South Carolina
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Skull Creek
Click for Map
Tue -- 05:11 AM EDT     -0.25 feet Low Tide
Tue -- 06:21 AM EDT     Sunrise
Tue -- 08:38 AM EDT     Moonset
Tue -- 11:07 AM EDT     7.20 feet High Tide
Tue -- 05:09 PM EDT     0.09 feet Low Tide
Tue -- 08:17 PM EDT     Sunset
Tue -- 11:09 PM EDT     Moonrise
Tue -- 11:34 PM EDT     8.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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86.64.72.60.7-0.20.11.63.55.36.77.26.85.74.22.40.90.10.51.93.85.77.28.1

Tide / Current Tables for Savannah River Entrance, Georgia Current
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Savannah River Entrance
Click for Map
Tue -- 03:19 AM EDT     -2.37 knots Max Ebb
Tue -- 05:54 AM EDT     0.01 knots Slack
Tue -- 06:22 AM EDT     Sunrise
Tue -- 08:17 AM EDT     1.96 knots Max Flood
Tue -- 08:39 AM EDT     Moonset
Tue -- 11:53 AM EDT     -0.00 knots Slack
Tue -- 03:16 PM EDT     -1.87 knots Max Ebb
Tue -- 05:54 PM EDT     0.00 knots Slack
Tue -- 08:17 PM EDT     Sunset
Tue -- 08:32 PM EDT     2.15 knots Max Flood
Tue -- 11:09 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-1.3-2-2.3-2.2-1.30.11.41.91.81.40.8-0.1-1.1-1.7-1.9-1.8-1.10.11.42.12.11.81.3

Weather Map and Satellite Images
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wmap_A
GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (2,6,7,8)
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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.