Sunday, May26, 2019 L-36.com


Marine Weather and Tides
Charleston, 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 6:13AMSunset 8:20PM Sunday May 26, 2019 11:16 AM EDT (15:16 UTC) Moonrise 12:58AMMoonset 12:03PM Illumination 49% Phase: Third Quarter Moon; Moon at 22 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- 1006 Am Edt Sun May 26 2019
Rest of today..SW winds 10 to 15 kt, increasing to 15 kt with gusts to 20 kt late. Waves building to 1 to 2 ft late.
Tonight..SW winds 15 kt with gusts to 20 kt, diminishing to 10 kt after midnight. Waves 1 to 2 ft early.
Mon..W winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon.
Mon night..SW winds 10 to 15 kt, diminishing to 5 kt after midnight.
Tue..W winds 5 kt, becoming sw 10 to 15 kt in the afternoon.
Tue night..S winds 10 kt.
Wed..SW winds 5 to 10 kt.
Wed night..SW winds 10 kt.
Thu..SW winds 10 to 15 kt.
Thu night..S winds 10 to 15 kt. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 81 degrees.
AMZ300 1006 Am Edt Sun May 26 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure and unseasonably hot conditions will persist most of this week.


7 Day Forecast for Marine Location Near Charleston, SC
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location: 32.78, -79.93     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 261437
afdchs
area forecast discussion
national weather service charleston sc
1037 am edt Sun may 26 2019

Synopsis
High pressure and unseasonably hot conditions will persist most
of this week. Some relief from the oppressive heat is expected
by next weekend.

Near term until 6 pm this evening
No significant changes were made to the previous forecast.

It will be another hot day as the stagnant synoptic pattern
featuring anomalously strong deep-layered high pressure will
remain largely unchanged across the area. A warm start combined
with slightly rising 850 mb temperatures near 21-22c and
pinned sea breeze will yield unseasonably hot temperatures
across the area. The warmest conditions look to occur the
metter- reidsville- savannah- springfield- beaufort corridor,
mainly in the lower 100s. Even the beaches should reach near 90
degrees. It appears the record highs for may could be
challenged at both kchs and ksav.

Dewpoints are expected to mix out in the lower 60s inland from
the sea breeze, then pool back into the lower-mid 70s across the
coastal counties as the sea breeze moves inland. Heat indices
are expected to peak near 105 degrees for most of the area with
lower 100s farther inland. This will support a heat advisory
from late morning through the afternoon.

No appreciable rain chances are expected although we can't
completely rule out an isolated shower thunderstorm as we saw
yesterday.

Short term 6 pm this evening through Wednesday
Tonight: warm and humid with lows in the lower 70s well inland
to around 80 at the beaches and downtown charleston.

Memorial day through Wednesday: the mid-levels will consist of
strong high pressure centered over the fl panhandle Monday
morning. The center of the high is forecasted to drift into the
northeastern gulf of mexico late Monday, then remain there
through Wednesday. Heights over our area will slowly drop
through Tuesday. But then they may rise a bit Wednesday as the
periphery of the high tries to build back into the southeast.

Naefs still shows 500 mb heights peaking at about 2 standard
deviations above normal Monday and above normal temperatures at
almost all levels of the atmosphere at that time. At the
surface, areas of high pressure will stretch from the western
atlantic into the southeast states through Wednesday. Each
afternoon weak thermal troughing will develop either over or
nearby our inland areas each day. But strong subsidence and a
very dry atmosphere will stop any convection from forming. The
only moisture will be fair weather clouds each afternoon. The
heat wave will continue with temperatures forecasted to reach or
exceed record values throughout the short term. For the high
temperatures, we continued the blend of models, thickness
values, and accounted for the location of the sea breeze. Monday
appears to be the hottest day in the short term because the sea
breeze may be pinned to the coast for most of the day, allowing
most temperatures away from the beaches to reach at least 100
degrees. Tuesday highs may be a degree or two cooler. What helps
is the sea breeze may make it farther inland earlier in the
day. This same trend is expected again on Wednesday. Lows each
night will only cool down into the 70s. Dew points will
initially mix out each afternoon, then increase along the
coastal corridor as the sea breeze moves inland. Heat indices
will be close to 105 degrees on Monday and Tuesday, which is
heat advisory criteria.

Long term Wednesday night through Saturday
The mid-level ridge will remain in place Wednesday night, then
finally flatten out Thursday night followed by zonal flow Friday and
Saturday. Surface high pressure will continue to dominate our
weather pattern through Thursday. The models still show a cold front
approaching our area Friday or Saturday. They have trended wetter,
which seems a little suspicious considering the front will be
running into our very dry airmass. We opted to only introduce slight
chance pops Friday and Saturday. But early indications are rainfall
amounts won't put much of a dent in our drought. Temperatures will
trend downwards each day. However, they are still forecasted to
remain above normal.

Aviation 14z Sunday through Thursday
Vfr.

Extended aviation outlook:VFR.

Marine
Through tonight: south to southwest winds will prevail through
the period. Directions will locally back to the southeast along
parts of the georgia coast with the formation of the sea breeze.

Speeds will average about 15 kt with gusts to 20 kt through the
period. Seas will average 1-3 ft, highest to the east.

Monday through Thursday: atlantic high pressure will remain the
dominant synoptic feature. Winds will mostly be from the sw,
backing a bit during the day with the sea breeze and veering a
bit at night with the the nocturnal low level jet. Away from the
gusty sea breeze, winds will mainly stay at or below 15 kt
through midweek. Seas will peak at 3-4 ft.

Climate
The ongoing heat wave will challenge or break many of these records:
earliest 100 degree temperatures:
kchs: june 2, 1985.

Ksav: may 25, 2019 and 1953.

Kcxm: june 1, 1985.

All time record highs for may:
kchs: 99 set may 21, 1938.

Ksav: 101 set may 30, 1898 and may 31, 1945.

Kcxm: 99 set may 21, 1938 and may 26, 1953.

Records for Sun 05 26...

station record high year(s)
------- ----------- -------
kchs 98 1953
ksav 100 1953
station record high min year(s)
------- --------------- -------
kchs 75 1998
kcxm 79 1998
records for Mon 05 27...

station record high year(s)
------- ----------- -------
kchs 98 1989
ksav 98 1989, 1962
kcxm 95 1962, 1926
station record high min year(s)
------- --------------- -------
kchs 76 1991
ksav 77 1878
kcxm 78 1991
records for Tue 05 28...

station record high year(s)
------- ----------- -------
kchs 97 1967, 1964
ksav 96 1964, 1898
kcxm 93 2000
station record high min year(s)
------- --------------- -------
kchs 76 2000
ksav 76 1885
kcxm 80 2000
records for Wed 05 29...

station record high year(s)
------- ----------- -------
kchs 95 1945
ksav 98 1945, 1898
station record high min year(s)
------- --------------- -------
kchs 76 2018
ksav 75 1885
kcxm 77 1998
records for Thu 05 30...

station record high year(s)
------- ----------- -------
kchs 95 2004
ksav 101 1898
station record high min year(s)
------- --------------- -------
kchs 75 1982
ksav 75 1924
kcxm 78 1998
records for Fri 05 31...

station record high year(s)
------- ----------- -------
kchs 98 1953
station record high min year(s)
------- --------------- -------
kchs 77 2004
ksav 75 2004
records for Sat 06 01...

station record high min year(s)
------- --------------- -------
kchs 77 1974
ksav 76 1880

Equipment
The downtown charleston (kcxm) observation will be unavailable
until further notice. The cause of the outage is unknown.

Technicians will address the outage on Tuesday.

Wfo charleston will only conduct upper-air soundings at 12z until
further notice due to a shortage of helium.

Chs watches warnings advisories
Ga... Heat advisory until 8 pm edt this evening for gaz099>101-
114>119-137-138-140.

Sc... Heat advisory until 8 pm edt this evening for scz042>045-
047>052.

Marine... None.

Near term... Rjb
short term...

long term...

aviation...

marine...

climate...

equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHTS1 0 mi35 min SW 8 G 11 90°F 82°F1020 hPa
FBIS1 - Folly Island, SC 7 mi77 min SW 8.9 G 12 85°F 1020.9 hPa (+0.4)71°F
41029 - Capers Nearshore (CAP 2) 16 mi69 min WSW 9.7 G 16 81°F 79°F1020 hPa
ACXS1 - ACE Basin Reserve, SC 32 mi92 min WSW 2.9 86°F 1021 hPa69°F
41033 43 mi129 min WSW 14 G 18 81°F 81°F1020.9 hPa
41004 - EDISTO - 41 NM Southeast of Charleston, SC 48 mi27 min SW 9.7 G 12 79°F2 ft1021 hPa

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC7 mi22 minSW 89.00 miFair90°F69°F52%1020 hPa
Charleston, Charleston Air Force Base, SC10 mi21 minWNW 410.00 miFair90°F69°F50%1019.8 hPa
Mount Pleasant Regional-Faison Field, SC11 mi22 minVar 3 G 108.00 miFair90°F71°F55%1019.6 hPa

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Last 24hrNE4CalmNE6SE10S14SE13SE11SE9SE9SE4SE6S6S4S3S4S5S4SW5SW5SW6SW8W11W12W4
1 day agoW8W9NW9NW4N7N10W6W7NW4S7S4SW5W5SW6SW4W3W3W5W4W3W4N6NE5NE6
2 days agoCalm3SE8SE12S86S10S11S9S10S8S7S4S5SW5CalmW4W6W5W6W8W10W10W8

Tide / Current Tables for Charleston, South Carolina
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Charleston
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Sun -- 01:57 AM EDT     Moonrise
Sun -- 02:11 AM EDT     4.95 feet High Tide
Sun -- 06:14 AM EDT     Sunrise
Sun -- 08:29 AM EDT     0.81 feet Low Tide
Sun -- 12:34 PM EDT     Last Quarter
Sun -- 01:03 PM EDT     Moonset
Sun -- 02:39 PM EDT     4.43 feet High Tide
Sun -- 08:19 PM EDT     Sunset
Sun -- 08:41 PM EDT     1.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.14.74.94.84.23.32.31.40.90.91.52.43.23.94.34.443.32.51.81.31.21.62.5

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
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Charleston Harbor Entrance
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Sun -- 01:57 AM EDT     Moonrise
Sun -- 02:30 AM EDT     -0.00 knots Slack
Sun -- 06:02 AM EDT     -1.72 knots Max Ebb
Sun -- 06:14 AM EDT     Sunrise
Sun -- 09:14 AM EDT     0.00 knots Slack
Sun -- 11:22 AM EDT     1.23 knots Max Flood
Sun -- 12:34 PM EDT     Last Quarter
Sun -- 01:03 PM EDT     Moonset
Sun -- 02:51 PM EDT     -0.00 knots Slack
Sun -- 06:17 PM EDT     -1.31 knots Max Ebb
Sun -- 08:18 PM EDT     Sunset
Sun -- 09:34 PM EDT     0.00 knots Slack
Sun -- 11:47 PM EDT     1.06 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.60.3-0.3-1-1.5-1.7-1.5-0.9-0.20.61.21.10.80.4-0.1-0.7-1.1-1.3-1.2-0.8-0.30.30.9

Weather Map and Satellite Images
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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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Wind Forecast for Charleston, SC (11,2,3,4)
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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.