Thursday, July18, 2019 L-36.com


Marine Weather and Tides
Hollywood, SC

Version 3.4
NOTICE
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 6:23AMSunset 8:28PM Thursday July 18, 2019 5:35 PM EDT (21:35 UTC) Moonrise 8:56PMMoonset 6:50AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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
    EDIT      (on/off)   Help
AMZ330 Charleston Harbor- 335 Pm Edt Thu Jul 18 2019
Tonight..SW winds 10 to 15 kt with gusts to 20 kt. A slight chance of showers and tstms this evening.
Fri..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon.
Fri night..SW winds 10 to 15 kt with gusts to 20 kt, diminishing to 5 to 10 kt after midnight. A chance of showers and tstms.
Sat..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. A chance of showers and tstms.
Sat night..SW winds 10 to 15 kt. A chance of showers and tstms, mainly in the evening.
Sun..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. A slight chance of showers and tstms.
Sun night..SW winds 10 to 15 kt with gusts to 20 kt. A slight chance of showers and tstms.
Mon..SW winds 10 to 15 kt. A chance of showers and tstms.
Mon night..SW winds 10 to 15 kt. A chance of showers and tstms.
Tue..SW winds 10 to 15 kt. A chance of showers and tstms.
Tue night..SW winds 5 to 10 kt. A chance of showers and tstms. Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 87 degrees.
AMZ300 335 Pm Edt Thu Jul 18 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Into early next week, the area will remain hot and humid between an inland trough of low pressure and atlantic high pressure. A cold front is expected to stall over or close to the region by the middle of next week, bringing higher rain chances and somewhat cooler temperatures.


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


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kchs 181956
afdchs
area forecast discussion
national weather service charleston sc
356 pm edt Thu jul 18 2019

Synopsis
Into early next week, the area will remain hot and humid
between an inland trough of low pressure and atlantic high
pressure. A cold front is expected to stall over or close to
the region by the middle of next week, bringing higher rain
chances and somewhat cooler temperatures.

Near term until 6 am Friday morning
Until sunset: radar shows thunderstorms far inland and along
portions of the sea breeze. SPC mesoscale analysis continues to
show mlcapes getting up to 2,500-3,000 j kg and dcapes
approaching 1,200 j kg. This could lead to some marginally
severe pulse storms with damaging winds. Steering winds aloft
are fairly light, which is causing slow storm movements. With
deep moisture in place (pwats around 2"), very heavy rainfall is
a concern with local flooding possible in low-lying and poorly
drained areas. Cams continue to be in good agreement showing the
thunderstorms diminishing around sunset.

Tonight: our area will remain between atlantic high pressure
and troughing inland. Both the synoptic models and the cams are
in good agreement showing land areas relatively dry while there
is a small risk of late night showers over the coastal waters.

Temperatures will remain mild.

Short term 6 am Friday morning through Sunday
Friday through Sunday: outside any thunderstorms, heat index values
will top out in the 105-109f range at many locations, and heat index
values could briefly top out around 110f at some locations near the
coast just inland from the beaches as the sea breeze pushes inland.

Guidance depicts above normal pops Friday afternoon early evening,
especially across southeast ga, due in part to an enhanced weakness
in the upper ridge over the region. Capped maximum pops around 50
percent across SE ga, but locally greater pops could eventually be
required. In typical fashion for mid-july, a couple of pulse
thunderstorms could briefly become severe with damaging wind gusts.

Saturday and Sunday: per latest guidance, only subtle changes in the
configuration of the upper ridge and inland surface trough could
translate to reduced coverage of diurnal afternoon into evening
thunderstorms as compared with Friday afternoon evening. The risk
for brief isolated damaging wind gusts will continue each
afternoon evening.

Long term Sunday night through Thursday
Moderate confidence this period. The low-level lee-side trough looks
to persist early in the week before deeper troughing likely moves
into the area for mid week. This will mean increasing rain chances
and lower temperatures, although hesitate to be too aggressive with
rain chances so far out given the rarity of summertime cold fronts
in this part of the country. Heat indices could still be near 110
degrees through Monday but the risk for heat advisories will likely
be over starting Tuesday.

Aviation 20z Thursday through Tuesday
18z tafs:VFR for much of the afternoon. Thunderstorms are
expected across portions of the area from late this afternoon
through early this evening. The most likely times these will
occur near the TAF sites is covered by vcts. There is a high
level of difficulty determining precise flight restrictions and
timing. Amendments may be made later based on radar trends and
possibly to add tempo groups. The thunderstorms will dissipate
by later this evening, allowingVFR to prevail.

Extended aviation outlook:VFR much of this period. Brief flight
restrictions and gusty shifting winds could occur within near
thunderstorms, especially during the afternoon evening hours.

The chance for thunderstorms associated flight restrictions could be
greatest Friday afternoon evening and starting Tuesday as a cold
front approaches the region.

Marine
Tonight: the synoptic pattern will consist of high pressure in
the atlantic and a trough inland. The surface pressure gradient
will become elevated the first half of the night, causing the
low level jet to set up. Expect S to SW winds up to 15-20 kt
with higher gusts through midnight. Winds will gradually ease
during the second half of the night, as the gradient lowers
slightly. Seas will be in the 2-4 ft range.

Friday through Tuesday: a typical summer pattern featuring a trough
of low pressure inland and offshore high pressure will support a
continuation of south southwest winds through the period. Wind
speeds will be enhanced near the coast during the afternoon evening
from the sea breeze and across coastal waters during the overnight.

Through this weekend, winds should remain capped around 20 knots and
seas should;d average 2-4 feet, below small craft advisory levels.

Early next week, a cold front will approach the region, and the
probability for local SCA conditions could increase.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term...

long term... Rjb
aviation...

marine...



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHTS1 9 mi65 min S 11 G 15 89°F 88°F1016.1 hPa
FBIS1 - Folly Island, SC 10 mi35 min SSW 16 G 18 86°F 1016.5 hPa (-1.4)80°F
41029 - Capers Nearshore (CAP 2) 24 mi87 min SW 18 G 23 84°F 85°F1016.3 hPa
ACXS1 - ACE Basin Reserve, SC 24 mi110 min S 1.9 91°F 1016 hPa79°F
41033 36 mi87 min SSW 16 G 19 85°F 89°F1016.4 hPa
41004 - EDISTO - 41 NM Southeast of Charleston, SC 54 mi45 min SW 16 G 18 84°F 85°F3 ft1016.5 hPa80°F

Wind History for Charleston, SC
(wind in knots)    EDIT      (on/off)   Help
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
-12
PM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last
24hr
S9
G14
S10
G14
SW10
G16
S8
G11
SW7
G13
SW8
G14
SW5
G8
SW4
W4
G7
W5
W5
G9
W5
W2
G6
SW2
W3
W2
G6
NW2
G5
NW3
NW2
G6
S9
G12
S8
G14
S8
G11
S9
G14
1 day
ago
S7
S6
S7
S5
S6
S4
S4
SW4
S4
S4
SW3
G6
SW4
SW3
SW3
S2
G5
W4
SE3
SE6
S8
S10
S8
S9
S9
S9
2 days
ago
SW1
SW2
S2
W3
W2
S1
S2
S1
--
S1
SW3
SW2
SW3
W3
W2
SE3
S3
SE2
E5
SE7
SE8
SE7
S8
S4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC4 mi40 minSSW 119.00 miFair91°F78°F67%1015.9 hPa
Charleston, Charleston Air Force Base, SC13 mi1.7 hrsSW 910.00 miPartly Cloudy93°F75°F56%1015.6 hPa
Mount Pleasant Regional-Faison Field, SC19 mi40 minSSW 136.00 miFair with Haze91°F78°F67%1015.6 hPa

Wind History from JZI (wind in knots)
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last 24hrS11S10SW6
G15
S9S8SW6CalmCalmW5W5CalmSW6CalmSW3SW6SW5SW7SW7
G13
SW5S8S11S11S10S11
G16
1 day agoSE5SE5SE5CalmS3S5S4CalmCalmCalmCalmCalmCalmCalmCalmCalmSE6S8SE7SE8S7S8S5S11
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE5SE5SE6S6SE4Calm

Tide / Current Tables for Church Creek bridge, Wadmalaw River, South Carolina
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Church Creek bridge
Click for Map
Thu -- 04:42 AM EDT     0.23 feet Low Tide
Thu -- 06:24 AM EDT     Sunrise
Thu -- 07:50 AM EDT     Moonset
Thu -- 11:43 AM EDT     6.25 feet High Tide
Thu -- 04:41 PM EDT     0.19 feet Low Tide
Thu -- 08:27 PM EDT     Sunset
Thu -- 09:55 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
7.76.54.62.30.60.30.923.44.65.56.16.25.43.81.90.50.20.92.13.75.16.37.2

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
   EDIT      (on/off)   Help   One Week of Data
Charleston Harbor Entrance
Click for Map
Thu -- 01:14 AM EDT     -2.58 knots Max Ebb
Thu -- 04:20 AM EDT     0.00 knots Slack
Thu -- 06:22 AM EDT     1.46 knots Max Flood
Thu -- 06:23 AM EDT     Sunrise
Thu -- 07:49 AM EDT     Moonset
Thu -- 10:02 AM EDT     -0.00 knots Slack
Thu -- 01:20 PM EDT     -1.98 knots Max Ebb
Thu -- 04:21 PM EDT     0.00 knots Slack
Thu -- 06:46 PM EDT     1.56 knots Max Flood
Thu -- 08:27 PM EDT     Sunset
Thu -- 09:54 PM EDT     Moonrise
Thu -- 10:38 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-2-2.6-2.3-1.5-0.40.71.41.410.70-0.8-1.5-1.9-1.8-1.2-0.30.61.41.61.31.10.6-0.4

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

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

Ground Weather Radar Station Charleston, SC
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.