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Marine Weather and Tides
Version 3.4 |
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 7:11AM | Sunset 5:19PM | Tuesday December 10, 2019 7:21 PM EST (00:21 UTC) | Moonrise 4:24PM | Moonset 5:29AM | Illumination 99% |  |
AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 633 Pm Est Tue Dec 10 2019
.small craft advisory in effect from Wednesday afternoon through Friday afternoon...
Tonight..SW winds 10 kt, becoming nw late. Seas 3 to 4 ft. A chance of showers. Patchy fog after midnight.
Wed..N winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. A chance of showers in the morning.
Wed night..NE winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 6 ft, building to 5 to 7 ft after midnight.
Thu..NE winds 25 kt with gusts to 35 kt. Seas 6 to 8 ft. A chance of showers in the afternoon.
Thu night..NE winds 20 to 25 kt with gusts to 35 kt. Seas 6 to 8 ft. A chance of showers.
Fri..NE winds 15 to 20 kt, becoming E 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Showers.
Fri night..S winds 10 kt, becoming W after midnight. Seas 4 to 5 ft. Showers likely.
Sat..W winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Sat night..W winds 10 to 15 kt. Seas 3 to 4 ft.
Sun..W winds 5 to 10 kt. Seas 2 to 3 ft.
Sun night..N winds 5 to 10 kt. Seas 2 ft.
.small craft advisory in effect from Wednesday afternoon through Friday afternoon...
Tonight..SW winds 10 kt, becoming nw late. Seas 3 to 4 ft. A chance of showers. Patchy fog after midnight.
Wed..N winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. A chance of showers in the morning.
Wed night..NE winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 6 ft, building to 5 to 7 ft after midnight.
Thu..NE winds 25 kt with gusts to 35 kt. Seas 6 to 8 ft. A chance of showers in the afternoon.
Thu night..NE winds 20 to 25 kt with gusts to 35 kt. Seas 6 to 8 ft. A chance of showers.
Fri..NE winds 15 to 20 kt, becoming E 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Showers.
Fri night..S winds 10 kt, becoming W after midnight. Seas 4 to 5 ft. Showers likely.
Sat..W winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Sat night..W winds 10 to 15 kt. Seas 3 to 4 ft.
Sun..W winds 5 to 10 kt. Seas 2 to 3 ft.
Sun night..N winds 5 to 10 kt. Seas 2 ft.
AMZ300 633 Pm Est Tue Dec 10 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A cold front will push through the region tonight, with strong high pressure to build over the area Wednesday through Thursday. A low pressure system will impact the area late week, followed by a return to high pressure over the weekend into early next week.
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A cold front will push through the region tonight, with strong high pressure to build over the area Wednesday through Thursday. A low pressure system will impact the area late week, followed by a return to high pressure over the weekend into early next week.
7 Day Forecast for Marine Location Near Hilton Head Island, SC
Hourly EDIT Helplocation: 32.22, -80.77 debug
Area Discussion for - Charleston, SC
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS62 KCHS 102345 AFDCHS
Area Forecast Discussion National Weather Service Charleston SC 645 PM EST Tue Dec 10 2019
SYNOPSIS. A cold front will push through the region tonight, with strong high pressure to build over the area Wednesday through Thursday. A low pressure system will impact the area late week, followed by a return to high pressure over the weekend into early next week.
NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/. As of 645 AM: Regional radar images indicated a fine line of showers, associated with a cold front, across the middle Carolinas southwest to the FL Panhandle, tracking east around 15 kts. Until the showers arrive, temperatures should remain nearly steady in the mid 60s. I will update the forecast to refine hourly temperature trends, sky, and weather.
Previous Discussion: Tonight: A cold front will advance into the region this evening and should be offshore by the early morning hours. Models have been consistent for several days now showing mainly scattered shower activity along and just behind the front, with the best coverage further north across the southeast South Carolina zones. Don't expect much measurable rainfall, generally less than a tenth of a inch before shower activity comes to an end late tonight. Immediately ahead of the front, winds will diminish and we could have a narrow window of time where fog could form, mainly along and near the coast. Given that guidance hasn't handle the fog very well over the past few days, the forecast features just patchy fog. Any fog that does develop will diminish quickly as winds turn offshore and drier low level air moves in. Temperatures will remain quite warm this evening, with most places holding in the mid to upper 60s. Cooler air will filter in late tonight, supporting lows in the low to mid 50s by sunrise Wednesday.
SHORT TERM /6 AM WEDNESDAY MORNING THROUGH FRIDAY/. Strong high pressure will build over the area from the northwest Wednesday, then shift east toward New England on Thursday. Much cooler air will move into the area with high temps only in the 50s both days.
A developing upper trough over the eastern United States late Thursday will bring several upper shortwaves through the area late Thursday through Friday. Meanwhile, an inverted trough will develop off the SC/GA coast, gradually developing into a closed low pressure system before moving up the coast late Friday. Moisture will begin to overspread the cool surface wedge late Thursday afternoon, potentially bringing a few showers to the area.
More significant moisture and forcing will affect the area late Thursday night through Friday evening, resulting in widespread showers. Given uncertainty in track of the low, temperature forecast is a bit tricky. Current forecast shows highs ranging from the mid 50s inland to low 60s at the coast.
LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/. Models are in decent agreement through the long term period. Low pressure and associated rainfall is expected to be exiting the area Friday night into Saturday. High pressure will return in its wake, with dry conditions expected for the latter half of the weekend and early next week. Temperatures will generally be above normal.
AVIATION /00Z WEDNESDAY THROUGH SUNDAY/. Prior to the 0Z TAFs, regional radar images indicated a fine line of showers, associated with a cold front, across the middle Carolinas southwest to the FL Panhandle, tracking east around 15 kts. Conditions at KCHS and KSAV should remain VFR ahead of the line. The line of showers is timed to reach the terminals late this evening. In the wake of the showers, ceilings should lower to MVFR, close to IFR levels. Based on MOS and forecast soundings, the restrictive ceilings are expected to remain until VFR conditions return during the mid-morning hours on Wednesday. Steady SW winds are forecast ahead of the front, veering from the NW by the pre-dawn hours, then turning from the NE by mid-morning.
Extended Aviation Outlook: Flight restrictions are likely Thursday night through Friday night as a low pressure system impacts the area. VFR is expected to return on Saturday.
MARINE. Tonight: Southerly winds will be in the 10-15 knot range this evening ahead of an approaching cold front. The front should move off the coast in the early morning hours and winds will shift around to northwesterly by sunrise Wednesday. Speeds will be increasing, but should generally be around 15 knots late tonight. Seas will average 3-5 feet. There is still a narrow window of time where sea/marine fog could develop this evening immediately ahead of the front. The forecast mentions patchy fog across the nearshore waters beginning late this evening.
Strong high pressure building in from the northwest will result in strengthening north to northeast winds Wednesday through Thursday, along with building seas. Solid Small Craft Advisory conditions are expected everywhere except Charleston Harbor starting at varying times Wednesday. An Advisory is likely for the Charleston Harbor at some point as well, however it appears winds will not reach criteria until Wednesday night, so have held off on issuing for now.
The worst conditions across the waters will occur late Wednesday night through Thursday, when gale-force gusts will be possible. Gale Watches and/or Warnings could be needed for at least portions of the waters. Conditions will improve on Friday, although advisories will persist as seas take a bit longer to subside.
Low pressure will pass over or near the waters late week into early weekend, followed by a return to high pressure. No additional concerns are expected at this time.
TIDES/COASTAL FLOODING. Elevated tide cycles are expected late week due to increasing astronomical influences with the full moon on Thursday and strong northeasterly winds. Minor to moderate coastal flooding will be possible with the morning high tides Thursday through Saturday. Coastal Flood Advisories could be required. Also of note, if significant rainfall occurs around the morning high tides Friday and Saturday, the potential for flooding of poor drainage areas could increase along the coast.
EQUIPMENT. KCLX will remain down until further notice.
CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . None. MARINE . Small Craft Advisory from noon Wednesday to 4 PM EST Friday for AMZ352-354. Small Craft Advisory from 7 AM Wednesday to 4 PM EST Saturday for AMZ374. Small Craft Advisory from 7 AM Wednesday to 4 AM EST Saturday for AMZ350.
NEAR TERM . NED SHORT TERM . JRL LONG TERM . ETM AVIATION . NED MARINE . BSH/JRL 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 Temp | Water Temp | Waves | Pressure | DewPt |
| FPKG1 - 8670870 - Fort Pulaski, GA | 15 mi | 58 min | SSW 6 G 9.9 | 65°F | 59°F | 1017.8 hPa | ||
| 41033 | 20 mi | 74 min | SSW 9.7 G 14 | 62°F | 59°F | 1017.8 hPa | ||
| ACXS1 - ACE Basin Reserve, SC | 29 mi | 97 min | S 1 | 66°F | 1017 hPa | 63°F | ||
| 41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA | 57 mi | 32 min | S 12 G 14 | 67°F | 62°F | 3 ft | 1017.6 hPa (+1.4) | 66°F |
Wind History for Fort Pulaski, GA
(wind in knots) EDIT (on/off) Help| 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 | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
| Last 24hr | SW G11 | SW G8 | SW G12 | SW G14 | SW G9 | SW | S | SW | SW | SW | SW | SW | SW | SW | SW G10 | SW G11 | S G11 | S G12 | SW G14 | S G11 | SW G12 | SW G11 | S G9 | SW G11 |
| 1 day ago | E | NE G10 | NE | NE | E G14 | E | E | E G14 | E | E | E | NE | NE | NE | E | E | S | E | S G10 | S G9 | S G11 | SW G8 | SW | SW |
| 2 days ago | E | E G15 | NE G15 | NE G18 | NE G14 | NE G18 | NE G18 | NE G20 | NE G19 | NE G19 | NE G18 | NE G19 | NE G17 | NE G17 | NE | NE G17 | NE G13 | NE | E | E | E | E | E G11 | E |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Hilton Head Island, Hilton Head Airport, SC | 4 mi | 92 min | S 8 | 10.00 mi | Fair | 66°F | 64°F | 94% | 1017.3 hPa |
| Beaufort County Airport, SC | 15 mi | 27 min | SSW 5 | 5.00 mi | Fog/Mist | 64°F | 62°F | 94% | 1017.6 hPa |
| Beaufort, Marine Corps Air Station, SC | 18 mi | 26 min | S 8 | 10.00 mi | A Few Clouds | 69°F | 64°F | 87% | 1017.4 hPa |
| Savannah-Hilton Head International Airport, GA | 23 mi | 29 min | S 6 | 10.00 mi | Overcast | 72°F | 64°F | 79% | 1017.3 hPa |
| Hunter U. S. Army Airfield, GA | 24 mi | 86 min | SSE 5 | 10.00 mi | A Few Clouds | 71°F | 63°F | 78% | 1016.2 hPa |
Link to 5 minute data for KHXD
Wind History from HXD (wind in knots)
| 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 | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
| Last 24hr | S | S | S G18 | S | S G18 | S | S | S | S | S | S | S | S | S | S | SW G14 | S G15 | SW | SW G16 | S G13 | S G13 | S G14 | S | S |
| 1 day ago | NE | NE | NE | N | NE | G12 | NE | NE | NE | NE | NE | Calm | Calm | S | S | S | S | S | S | |||||
| 2 days ago | NE | NE | NE | NE | N | N | NE | G16 | NE | NE | N | N | N | N | N | NE | N | N | N | N | NE | Calm | Calm | Calm |
Tide / Current Tables for Skull Creek, south entrance, Hilton Head Island, South Carolina
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSkull Creek
Click for Map
Tue -- 12:35 AM EST 0.13 feet Low Tide
Tue -- 05:29 AM EST Moonset
Tue -- 06:54 AM EST 8.11 feet High Tide
Tue -- 07:13 AM EST Sunrise
Tue -- 01:11 PM EST 0.52 feet Low Tide
Tue -- 04:24 PM EST Moonrise
Tue -- 05:18 PM EST Sunset
Tue -- 07:18 PM EST 7.14 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 12:35 AM EST 0.13 feet Low Tide
Tue -- 05:29 AM EST Moonset
Tue -- 06:54 AM EST 8.11 feet High Tide
Tue -- 07:13 AM EST Sunrise
Tue -- 01:11 PM EST 0.52 feet Low Tide
Tue -- 04:24 PM EST Moonrise
Tue -- 05:18 PM EST Sunset
Tue -- 07:18 PM EST 7.14 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 0.3 | 0.2 | 1.2 | 2.9 | 4.8 | 6.6 | 7.8 | 8.1 | 7.5 | 6.3 | 4.6 | 2.8 | 1.3 | 0.5 | 0.8 | 2 | 3.6 | 5.2 | 6.5 | 7.1 | 6.9 | 5.9 | 4.4 | 2.6 |
Tide / Current Tables for Savannah River Entrance, Georgia Current
EDIT (on/off) Help One Week of DataSavannah River Entrance
Click for Map
Tue -- 01:03 AM EST 0.00 knots Slack
Tue -- 03:45 AM EST 2.28 knots Max Flood
Tue -- 05:29 AM EST Moonset
Tue -- 07:13 AM EST Sunrise
Tue -- 07:22 AM EST -0.00 knots Slack
Tue -- 10:23 AM EST -2.04 knots Max Ebb
Tue -- 01:48 PM EST 0.00 knots Slack
Tue -- 04:17 PM EST 1.84 knots Max Flood
Tue -- 04:24 PM EST Moonrise
Tue -- 05:19 PM EST Sunset
Tue -- 07:52 PM EST -0.00 knots Slack
Tue -- 10:41 PM EST -1.80 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 01:03 AM EST 0.00 knots Slack
Tue -- 03:45 AM EST 2.28 knots Max Flood
Tue -- 05:29 AM EST Moonset
Tue -- 07:13 AM EST Sunrise
Tue -- 07:22 AM EST -0.00 knots Slack
Tue -- 10:23 AM EST -2.04 knots Max Ebb
Tue -- 01:48 PM EST 0.00 knots Slack
Tue -- 04:17 PM EST 1.84 knots Max Flood
Tue -- 04:24 PM EST Moonrise
Tue -- 05:19 PM EST Sunset
Tue -- 07:52 PM EST -0.00 knots Slack
Tue -- 10:41 PM EST -1.80 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| -1.1 | -0.1 | 1.2 | 2.1 | 2.3 | 1.9 | 1.2 | 0.4 | -0.7 | -1.6 | -2 | -2 | -1.7 | -0.9 | 0.2 | 1.3 | 1.8 | 1.7 | 1.3 | 0.7 | -0.1 | -1.1 | -1.7 | -1.8 |
Weather Map
(on/off) Help Weather Map
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 (19,4,5,8)
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Ground Weather Radar Station Charleston, SC
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