Sunday, December8, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
North Charleston, 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 7:08AMSunset 5:14PM Sunday December 8, 2019 3:07 AM EST (08:07 UTC) Moonrise 3:10PMMoonset 3:31AM Illumination 87% Phase: Waxing Gibbous; Moon at 11 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- 1247 Am Est Sun Dec 8 2019
Rest of tonight..NE winds 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Sun..NE winds 10 to 15 kt. A slight chance of showers in the afternoon.
Sun night..NE winds 5 to 10 kt, becoming N after midnight. A slight chance of showers.
Mon..W winds 5 kt, becoming sw in the afternoon.
Mon night..SW winds 10 kt. Patchy fog after midnight.
Tue..SW winds 10 kt.
Tue night..SW winds 10 kt, becoming W after midnight. A chance of showers.
Wed..N winds 10 to 15 kt. A chance of showers.
Wed night..N winds 15 to 20 kt. Waves 1 to 2 ft.
Thu..NE winds 15 to 20 kt. Waves 1 to 2 ft.
Thu night..NE winds 15 to 20 kt. Waves 1 to 2 ft. A slight chance of showers. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 58 degrees.
AMZ300 1247 Am Est Sun Dec 8 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail through Sunday while a coastal trough develops offshore. A warm front will lift north of the region Monday, before a cold front sweeps through Tuesday night. Strong high pressure will return Wednesday, before giving way to a storm system late next week.


7 Day Forecast for Marine Location Near North Charleston, SC
   Hourly   EDIT   Help
location: 32.85, -80.05     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS62 KCHS 080559 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1259 AM EST Sun Dec 8 2019

SYNOPSIS. High pressure will prevail through Sunday while a coastal trough develops offshore. A warm front will lift north of the region Monday, before a cold front sweeps through Tuesday night. Strong high pressure will return Wednesday, before giving way to a storm system late next week.

NEAR TERM /UNTIL 6 AM THIS MORNING/. Mid-level heights will continue to slowly rise overnight. At the surface, high pressure will be centered to our north. The southern edge of this high is forecasted to wedge to the lee of the Appalachians, causing northeast winds, strongest along the coast and along Lake Moultrie. Meanwhile, a weak trough is expected to form offshore. Dry air associated with the high is expected to remain entrenched over our areas, keeping us rain- free. Though, low-level clouds are expected to increase closer to the coast with the formation of the trough. It's not out of the question we could have partly to mostly clouds skies along portions of the GA coast towards daybreak. No changes in temps that will average close to normal for lows.

SHORT TERM /6 AM THIS MORNING THROUGH TUESDAY/. Sunday and Sunday night: The day will start with the center of surface high pressure over New England. The high will steadily slip off to the east during the day, allowing a coastal trough to develop just offshore. Later in the day, the trough will sharpen and move closer to the coast. Models show varying degrees of shower activity within the trough pushing onshore near the Santee River and eastern portions of Charleston and Berkeley counties. The ECMWF keeps land areas dry, the GFS catches just the eastern tip of Charleston County, and the NAM brings showers far enough west to reach the I-26 corridor. The forecast follows a blend of these solutions, keeping rain chances in the 20-30 percent range. Shower activity in this area could go through the late evening hours, but we don't anticipate much in the way of measurable rainfall. Highs should range around 60 in the Tri-County region, to the mid 60's south of I- 16. Forecast lows are in the upper 40s to low 50s.

Monday through Tuesday: The coastal trough will lift north of the forecast area as a warm front Monday morning. This will place the forecast area solidly in the warm sector ahead of an approaching cold front through the day on Tuesday. Little to no forcing is progged across the area, so the forecast is dry, other than a small area of 20 percent rain chances will inland late Tuesday. The main forecast change will be the arrival of very warm temperatures. Monday highs are expected to reach the low to mid 70s before surging to near 80 for Tuesday. Such highs for Tuesday could be within a few degrees of daily records (see Climate section below). The other main forecast challenge will be the potential for sea fog to develop across the nearby coastal waters and spread inland Monday night into Tuesday. This could impact temperatures across coastal areas.

LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/. The mid and late week period looks to be volatile and potentially wet.

The cold front will pass through early in the extended period, bringing with it showers and maybe a few t-storms Tuesday night into early Wednesday. A strengthening and robust arctic high will be plunging through the upper Mississippi Valley Wednesday, then slides into the Northeast Thursday, and off New England thereafter. The southern part of this high wedges into the area for a part of the latter half of the week, as cyclogenesis occurs in the northern Gulf of Mexico Thursday and Friday. The resulting low tracks over the Southeast next Saturday, likely passing near or just inland from the local area. Over-running rains will spread in during the late week timeframe, with the potential for heavy rainfall and even a few t- storms to to occur with strong dynamics available. In addition, windy weather is expected over the coastal counties with a tight gradient in place.

The core of arctic air will stay to our north, but even so, temps will be below normal through late in the week.

AVIATION /06Z SUNDAY THROUGH THURSDAY/. KCHS: A high pressure wedge will strengthen inland and a coastal trough forms over the Atlantic through the 06Z TAF cycle. VFR will prevail through Sunday evening, with flight restrictions to quickly develop Sunday night as a strong inversion develops and traps moisture underneath. There could also be -SHRA at or near the airfield between about 20Z and 01Z. But since no impacts would occur and the better chances stay off to the east and northeast, there is no mention with the latest TAF.

KSAV: Stratocumulus will continue to develop over the ocean overnight and Sunday, with local trajectories suggesting that these clouds will brush the terminal with low-end VFR ceilings during Sunday. With the formation of the nocturnal inversion Sunday night, there could be flight restrictions developing late in the 06Z TAF cycle. We have more time to address this concern in future forecasts.

Extended Aviation Outlook: Flight restrictions possible in night time and morning fog/stratus Sunday night through Tuesday. Additional flight restrictions can occur due to showers in association with a cold front Tuesday night.

MARINE. Overnight: High pressure will be centered to our north. The southern edge of the high is forecasted to wedge to the lee of the Appalachians, causing the surface pressure gradient to increase. The result will be strong winds across the coastal waters, worst conditions after midnight. Small Craft Advisories are in effect for all of the marine zones, except the Charleston Harbor where gusts should be just short of 25 kt. Expect wind gusts 25 kt within 20 nm, and 30 kt beyond 20 nm. Seas are expected to build, reaching 4-6 ft within 20 nm, and 6-8 ft beyond 20 nm after midnight.

Sunday through Thursday: Strong northeast winds will start the period on Sunday as high pressure sits over New England. Small Craft Advisories will be in effect for all waters outside Charleston Harbor. Conditions will improve through the day and overnight and the advisories will all be down by Monday morning. Southerly flow will arrive for Monday through Tuesday, and speeds should top out in the 15 knot range most of the time. A cold front will sweep through Tuesday night and winds and seas will be on the increase again as a 1035-1040 mb arctic high builds to the north Wednesday through Thursday. The gradient could increase to as much as 3-4 mb from north to south over the local waters, leading to solid Small Craft Advisories and even the potential for Gale Warnings.

Sea Fog: An abnormally warm and humid air mass will move in Monday and Tuesday, with a S-SW flow to occur. Provided that winds aren't too strong, sea fog formation will be possible across at least the 0- 20 nm waters and at times even into Charleston Harbor, primarily beginning Monday night.

TIDES/COASTAL FLOODING. Astronomical high tides will already be in effect during the middle and latter part of next week, with the full moon on Thursday. With strong northeasterly winds, we anticipate that coastal flooding and beach erosion will become a problem. Details will be worked out as we draw closer to the event.

CLIMATE. Record Max Temps December 10th . KCHS . 82F set in 1972. KCXM . 79F set in 1943. KSAV . 82F set in 1972.

EQUIPMENT. KCLX is operating, but power output is low. As a result, radar returns will generally remain weak. A technician will troubleshoot the problem on Sunday.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . None. MARINE . Small Craft Advisory until 7 PM EST this evening for AMZ350- 352-354. Small Craft Advisory until 5 AM EST Monday for AMZ374.

NEAR TERM . SHORT TERM . LONG TERM . AVIATION . MARINE . TIDES/COASTAL FLOODING . CLIMATE . EQUIPMENT .


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 8 mi68 min N 12 G 14 49°F 57°F1027.2 hPa (+0.0)
FBIS1 - Folly Island, SC 14 mi68 min NNE 20 G 23 51°F 1027.2 hPa (+0.0)48°F
41029 - Capers Nearshore (CAP 2) 23 mi60 min E 21 G 29 54°F 58°F1027.6 hPa
ACXS1 - ACE Basin Reserve, SC 29 mi83 min NNE 2.9 47°F 1027 hPa45°F
41033 44 mi60 min ENE 19 G 25 54°F 57°F1026.2 hPa

Wind History for Charleston, SC
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
Last
24hr
NW6
G9
NW6
NW5
N5
G8
N5
N5
G8
N6
G9
N11
N7
N7
NE7
NE9
E11
NE14
NE11
NE10
NE9
NE8
N8
G11
N8
N11
N10
G13
N11
G14
N12
1 day
ago
N2
NW3
NW3
NW1
NW3
N2
N5
N2
E5
SE4
G7
E7
E4
NW2
NE4
E2
N4
NW2
NW5
NW2
G6
N4
G7
N3
G7
NW2
N2
NW4
G7
2 days
ago
W8
G12
NW6
G11
NW4
G8
NW4
G8
NW8
G12
NW9
G13
N10
G15
NW6
G10
N6
N4
G7
E6
SE5
SE4
SE1
S1
S1
S1
--
--
--
NE3
--

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston, Charleston Air Force Base, SC4 mi72 minNE 910.00 miFair45°F39°F83%1027.2 hPa
Charleston Executive Airport, SC11 mi13 minNNE 810.00 miFair48°F42°F82%1027.1 hPa
Mount Pleasant Regional-Faison Field, SC15 mi13 minN 010.00 miA Few Clouds45°F42°F93%1027.4 hPa
Summerville Airport, SC19 mi13 minVar 4 G 1010.00 miFair45°F39°F81%1027.4 hPa
Moncks Corner Berkeley County, SC23 mi13 minENE 67.00 miFair41°F37°F87%1028.1 hPa

Link to 5 minute data for KCHS

Wind History from CHS (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
Last 24hrN6N5N5N4N5N6N9NE9NE7E9E7NE8E8E7E6E7NE5NE4NE7NE8NE9NE8NE9NE8
1 day agoNW3CalmCalmN3N3E4E3E8S8S10SE6W9NE4E5N4CalmCalmNW5N5NE6N3NW5N6N3
2 days agoW6NW9NW8NW7N4NW7N8N10N10NE7N8NW4NW3N4SE5S4CalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Drayton, Bee's Ferry, Ashley River, South Carolina
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Drayton
Click for Map
Sun -- 03:31 AM EST     Moonset
Sun -- 05:29 AM EST     5.77 feet High Tide
Sun -- 07:10 AM EST     Sunrise
Sun -- 11:46 AM EST     0.84 feet Low Tide
Sun -- 03:09 PM EST     Moonrise
Sun -- 05:13 PM EST     Sunset
Sun -- 05:49 PM EST     5.32 feet High Tide
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
0.81.734.25.25.75.75.14.131.91.10.91.42.43.54.55.15.34.942.91.70.7

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
   EDIT      (on/off)   Help   One Week of Data
Charleston Harbor Entrance
Click for Map
Sun -- 01:30 AM EST     1.49 knots Max Flood
Sun -- 03:30 AM EST     Moonset
Sun -- 05:18 AM EST     -0.00 knots Slack
Sun -- 07:09 AM EST     Sunrise
Sun -- 08:39 AM EST     -1.93 knots Max Ebb
Sun -- 11:48 AM EST     0.00 knots Slack
Sun -- 01:54 PM EST     1.29 knots Max Flood
Sun -- 03:09 PM EST     Moonrise
Sun -- 05:13 PM EST     Sunset
Sun -- 05:28 PM EST     -0.00 knots Slack
Sun -- 08:53 PM EST     -1.97 knots Max Ebb
Sun -- 11:55 PM EST     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
0.71.41.41.20.80.2-0.6-1.3-1.8-1.9-1.5-0.70.211.31.10.80.3-0.4-1.2-1.8-2-1.6-0.9

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    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 (3,6,7,8)
      (on/off)   Help

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

Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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.