Wednesday, October16, 2019 L-36.com


Marine Weather and Tides
Kiawah Island, 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 7:23AMSunset 6:47PM Wednesday October 16, 2019 5:50 PM EDT (21:50 UTC) Moonrise 7:47PMMoonset 8:48AM Illumination 89% 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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AMZ330 Charleston Harbor- 324 Pm Edt Wed Oct 16 2019
Tonight..W winds 10 to 15 kt with gusts to 20 kt this evening, becoming nw.
Thu..NW winds 5 to 10 kt.
Thu night..NW winds 5 kt.
Fri..NE winds 5 to 10 kt.
Fri night..E winds 5 kt.
Sat..E winds 5 to 10 kt. A slight chance of showers in the morning, then a chance of showers in the afternoon.
Sat night..SE winds 10 kt. Showers likely with a slight chance of tstms.
Sun..S winds 5 to 10 kt. A chance of showers with a slight chance of tstms.
Sun night..S winds 5 to 10 kt. A chance of showers.
Mon..SW winds 5 to 10 kt. A chance of showers with a slight chance of tstms.
Mon night..S winds 10 kt. A chance of showers. Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 76 degrees.
AMZ300 324 Pm Edt Wed Oct 16 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A cold front will move through this evening, followed by dry high pressure Thursday and Friday. A storm system originating from the gulf of mexico should bring unsettled weather to the area this weekend, followed by another cold front during the first half of next week.


7 Day Forecast for Marine Location Near Kiawah Island, SC
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location: 32.59, -80.11     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 161952
afdchs
area forecast discussion
national weather service charleston sc
352 pm edt Wed oct 16 2019

Synopsis
A cold front will move through this evening, followed by dry
high pressure Thursday and Friday. A storm system originating
from the gulf of mexico should bring unsettled weather to the
area this weekend, followed by another cold front during the
first half of next week.

Near term until 6 am Thursday morning
A deepening low pressure system will shift into the northeast
u.S. Tonight. An associated cold front will cross through the
area and then push offshore this evening. Model soundings show
a vast drying through the atmospheric column and this should
preclude any additional rainfall. Skies will clear and much
cooler air will filter in behind the front. Low temperatures are
forecast to range from the upper 40s inland to mid 50s along
the coast.

Short term 6 am Thursday morning through Saturday
Thursday and Friday: weather conditions will be quite dry with
sfc high pressure building into the area behind a departing cold
front associated with a parent mid-upper lvl trough of low
pressure shifting off the northeast coast. Temps will start off
cooler (below normal) for this time of year as cold air
advection near the sfc offsets a full day of Sun and a
downsloping wind aloft. In general, temps should peak in the
lower 70s Thursday afternoon with perhaps a few locations
reaching the mid 70s near the altamaha river in southeast
georgia. Sfc winds will become light Thursday night, setting up
a favorable radiational cooling conditions under clear skies.

Conditions will support some of the coolest temps of the week,
with overnight lows dipping into the mid 40s well inland to
low mid 50s closer to the coast. On Friday, sfc winds will
eventually become onshore, favoring slightly warmer sfc temps
under mid upper lvl ridging, downsloping winds and another full
day of Sun during peak diurnal heating. In general, temps should
peak in the low mid 70s, warmest across southeast georgia.

Winds will once again be light, but onshore Friday night,
suggesting slightly warmer temps than the previous night.

However, temps should cool fairly quick before the onset of
increasing clouds late. In general, temps should dip into the
upper 40s well inland in southeast south carolina, but only to
the low mid 50s inland in southeast georgia. Temps should remain
warmer near the coast, in the lower 60s.

Saturday: warmer conditions and precip chances are likely to
increase during the second half of the weekend as an area of low
pressure develops across the gulf of mexico and lifts northeast
towards the area. Latest guidance shows some timing differences in
the arrival of the system, but the general consensus is that showers
will spread across the area from southwest to northeast as deep
moisture advects into the region along ahead of the approaching low
pressure system. Instability is not all that impressive, likely due
to cloud cover across the region, but should be sufficient for a few
thunderstorms during the day. Afternoon temps will also be warmer
than previous days despite clouds, peaking in the mid upper 70s
(warmest near the coast and across southeast georgia.)

Long term Saturday night through Wednesday
Focus will initially be on a storm system moving into or nearby
the fl panhandle Saturday night, then moving over or nearby our
area Sunday into Monday. Models are in pretty good agreement
showing a wide swath of rainfall during this time period across
the southeast. Though, they differ a bit on rainfall amounts and
locations with the highest amounts, which is to be expected
this far out. Once this system moves away later Monday a cold
front is forecasted to approach on Tuesday, bringing another
batch of rain. Overall, we should expect a wet long term. Pops
may need to be raised much more than we're currently showing.

Aviation 20z Wednesday through Monday
Any lingering MVFR ceilings early in the TAF cycle will lift
this afternoon, andVFR will then prevail through 18z Thursday.

Gusty west winds this afternoon will subside this evening.

Extended aviation outlook:VFR conditions will prevail Thursday and
Friday. Chances of showers and perhaps a few thunderstorms could
impact either terminal Saturday and Sunday, bringing periods of
flight restrictions during late weekend into early next week.

Marine
Tonight: a cold front will cross the waters tonight, turning
the winds from the west to northwest. While speeds have come
down a bit, conditions are still supportive of small craft
advisories in the nearshore charleston county waters and outer
georgia waters. Improvement is expected to continue, however
another uptick is expected around the time of frontal passage. A
few gusts near 25 knots are possible, but at this time appears
too marginal for additional advisories. Seas will be highest
this evening and then will subside through the night.

High pressure will bring tranquil conditions across coastal waters
Thursday and Friday, resulting in winds seas that remain well below
small craft advisory thresholds. A potentially strengthening low
pressure system originating in the gulf of mexico is expected to
shift over or near the area late weekend into early next week,
leading to increasing winds and building seas. Small craft
advisories could be needed across a portion of the waters Saturday
evening into Sunday when southerly winds approach 25 kts and seas
build as high as 5-7 ft. Conditions should then quickly improve
across all coastal waters as high pressure returns by Monday.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... Small craft advisory until 2 am edt Thursday for amz374.

Small craft advisory until 8 pm edt this evening for amz350.

Near term... Etm
short term... Dpb
long term... Ms
aviation... Dpb etm
marine... Dpb etm


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FBIS1 - Folly Island, SC 13 mi51 min W 7 G 8.9 79°F 1005.9 hPa (-0.6)67°F
CHTS1 16 mi57 min W 7 G 15 82°F 76°F1005.3 hPa
ACXS1 - ACE Basin Reserve, SC 18 mi66 min WSW 2.9 80°F 1006 hPa68°F
41033 27 mi43 min W 14 G 18 79°F 77°F1007.9 hPa
41029 - Capers Nearshore (CAP 2) 30 mi43 min W 16 G 23 79°F 76°F1005.3 hPa
41004 - EDISTO - 41 NM Southeast of Charleston, SC 54 mi41 min WSW 19 G 25 79°F1004.9 hPa

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC10 mi56 minW 89.00 miFair81°F68°F66%1005.4 hPa
Charleston, Charleston Air Force Base, SC23 mi55 minW 1010.00 miPartly Cloudy80°F64°F60%1005 hPa

Link to 5 minute data for KJZI

Wind History from JZI (wind in knots)
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Last 24hrCalmCalmCalmS5
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1 day agoS5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN4CalmNE4NE4NE4E5E7NE7S7Calm
2 days ago----S8S9S7S8S8S8SW4CalmNW4CalmCalmCalmCalmCalmW7NW7W73NW5CalmS7S5

Tide / Current Tables for Kiawah River Bridge, South Carolina
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Kiawah River Bridge
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Wed -- 04:04 AM EDT     0.54 feet Low Tide
Wed -- 07:25 AM EDT     Sunrise
Wed -- 09:48 AM EDT     Moonset
Wed -- 10:18 AM EDT     6.58 feet High Tide
Wed -- 04:33 PM EDT     0.82 feet Low Tide
Wed -- 06:46 PM EDT     Sunset
Wed -- 08:46 PM EDT     Moonrise
Wed -- 10:33 PM EDT     5.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.73.42.110.50.92.13.65.16.16.66.45.64.42.91.70.90.91.62.94.25.15.65.7

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
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Charleston Harbor Entrance
Click for Map
Wed -- 01:30 AM EDT     -2.24 knots Max Ebb
Wed -- 04:28 AM EDT     0.00 knots Slack
Wed -- 07:09 AM EDT     1.80 knots Max Flood
Wed -- 07:24 AM EDT     Sunrise
Wed -- 09:47 AM EDT     Moonset
Wed -- 10:45 AM EDT     -0.00 knots Slack
Wed -- 02:00 PM EDT     -2.35 knots Max Ebb
Wed -- 05:06 PM EDT     0.00 knots Slack
Wed -- 06:45 PM EDT     Sunset
Wed -- 07:32 PM EDT     1.52 knots Max Flood
Wed -- 08:45 PM EDT     Moonrise
Wed -- 10:50 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.6-2.2-2.2-1.5-0.50.51.41.81.61.10.6-0.2-1.3-2-2.3-2-1.1-0.10.81.41.410.5-0.1

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (17,4,5,8)
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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.