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Marine Weather and Tides
Version 3.4 |
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 6:42AM | Sunset 7:59PM | Thursday August 22, 2019 10:57 PM EDT (02:57 UTC) | Moonrise 11:03PM | Moonset 12:01PM | Illumination 50% |  |
AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 1044 Pm Edt Thu Aug 22 2019
Overnight..SW winds 10 to 15 kt. Seas 3 ft.
Fri..SW winds 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft. A slight chance of showers and tstms.
Fri night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.
Sat..SW winds 10 kt, becoming se in the afternoon. Seas 2 ft. Showers and tstms likely.
Sat night..NE winds 10 kt. Seas 2 ft. Showers and tstms.
Sun..NE winds 10 kt. Seas 2 to 3 ft. Showers and tstms likely through the day, then a chance of showers and tstms through the night.
Mon..NE winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Tue..E winds 10 kt, becoming s. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
Overnight..SW winds 10 to 15 kt. Seas 3 ft.
Fri..SW winds 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft. A slight chance of showers and tstms.
Fri night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.
Sat..SW winds 10 kt, becoming se in the afternoon. Seas 2 ft. Showers and tstms likely.
Sat night..NE winds 10 kt. Seas 2 ft. Showers and tstms.
Sun..NE winds 10 kt. Seas 2 to 3 ft. Showers and tstms likely through the day, then a chance of showers and tstms through the night.
Mon..NE winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Tue..E winds 10 kt, becoming s. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
AMZ200 1044 Pm Edt Thu Aug 22 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Bermuda high pressure will remain offshore through the end of the week. A cold front will drop southward into the area Saturday before stalling just offshore Sunday and Monday. Meanwhile, some slow tropical development is possible with a system expected to move ne from the bahamas and florida Sunday. Mariners should Monitor the forecast closely for potential changes.
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Bermuda high pressure will remain offshore through the end of the week. A cold front will drop southward into the area Saturday before stalling just offshore Sunday and Monday. Meanwhile, some slow tropical development is possible with a system expected to move ne from the bahamas and florida Sunday. Mariners should Monitor the forecast closely for potential changes.
7 Day Forecast for Marine Location Near Red Springs, NC
Hourly EDIT Helplocation: 34.83, -79.21 debug
Area Discussion for - Raleigh, NC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 krah 230232 afdrah area forecast discussion national weather service raleigh nc 1032 pm edt Thu aug 22 2019 Synopsis On the western periphery of high pressure centered east of bermuda, a lee low will develop over the carolinas fri. A cold front will then settle south across the region late Fri and Fri night, with following cool high pressure for the weekend. Near term tonight As of 1030 pm Thursday... generally light weak and unperturbed, wly to swly flow mid-upr lvl flow remains over the carolinas this evening, between a subtropical ridge over the w-cntl and swrn n. Atlantic and a trough amplifying across the great lakes. At the surface, an outflow boundary was draped at 02z from near iso swwd to ctz then wwd across NRN sc to near gsp, with a large area of rain-cooled and stable air (with respect to surface boundary layer- based convection) over the SRN middle atlantic (va nc). An area of widely scattered, elevated convection has recently developed from near gsp newd to clt and rcz hff. This activity appears to be occurring in a regime of isentropic ascent along and north of the intersection of a modest 15-20 kt LLJ in the 925-850 mb layer, per 00z upr air and regional VWP data, with the foregoing outflow boundary. Given little expected overall change in the strength and orientation of the LLJ overnight, these elevated showers and storms may continue at times over the sandhills and piedmont (especially the SRN wrn) tonight. The LLJ may also allow the convective cluster now crossing the blue ridge to be maintained into the WRN piedmont late tonight, though even MUCAPE decreases with NRN extent toward va, so overall intensity of that convection should continue to decrease with time and ewd extent across the foothills piedmont. Persistence lows in the lwr-mid 70s, with some patchy stratus possible mainly over the piedmont late. Short term Friday through Saturday night As of 330 pm Thursday... Friday and Friday night: a cold front associated with an unseasonably strong positively-tilted northern stream trough diving se through the NE us and mid-atlantic states will provide the focus for widespread showers and storms Friday afternoon and into Friday night. Low-level frontal convergence underneath the right entrance region of a ~90 kt upper jet streak associated with the upper trough moving through the region will result in deep strong ascent across the area. Precipitable waters of 2.0-2.25", MLCAPE of 2000-3000 j kg and a belt of strong westerlies of 25 to 35 kts of effective south dropping south into the area will support the threat for an organized line or cluster of strong to severe storms Friday afternoon and evening. Cams support the above scenario, advancing a well-organized cold pool dominated convective line segment into the area between 4 pm to midnight, with damaging thunderstorm wind gusts the primary threat, especially from us highway 64 north. Convection should weaken and the severe threat should diminish from loss of daytime heating Friday evening as the line progresses into southern half of the forecast. If the cold front slows down briefly stalls across the area Friday night early Saturday as indicated by the gfs, pockets of heavy rainfall could lead to some localized flash flooding, especially in low-lying or poor drainage area. Average rainfall amounts are expected to range between 1 to 2 inches. It will be another warm and humid day ahead of the front. Highs Friday afternoon ranging from mid to upper 90s north to lower 90s south. Min temps across the area Friday night will depend on how far south the cold front progresses. But the airmass will feel noticeably cooler across the north with lows ranging from mid 60s north to lower 70s south. Saturday and Saturday night: a shallow of wedge of cooler and stable air will attempt to advect south through the day on Saturday as the cold front progresses south |
into sc and ga. While convection should remained anchored to the front, models suggest a a period of ana-frontal precip lingering across at least southern portions of the forecast area INVOF of the h8 trough axis Saturday afternoon and evening, possibly lingering into Saturday evening night. What a difference day makes wrt temperatures on Saturday with expectations of a wedge regime setting up north of the front. Weak overrunning atop the low-level nely flow will lock in the low clouds and produce spotty rain showers and or drizzle. Have lowered forecast highs on Saturday. Highs ranging from lower 70s(a 15 f degree difference from Friday) to lower 80s south. Lows Saturday night in the lower to mid 60s Long term Sunday through Wednesday As of 255 pm Thursday... extended portion of the forecast remains relatively on-track, with uncertainty remaining high, especially early next week. Have adjusted pops slightly upward Sun - Tue as the front lingers drifts north and hints of some tropical sub-tropical influences begin to appear. Models continue to trend wildly with these features, so thought it best to linger chc schc pops into the middle of next week, with a gradual warming trend likely. Previous valid discussion... meanwhile, it's worth noting as mentioned in the latest twoat, the trough of low pressure located over the central bahamas is progged by several models, including the latest ecmwf, to lift north and merge with the aforementioned cold front remnants off the SE coast on Sunday. Fortunately these models keep any low pres development well off the coast, but should this happen, central nc may actually benefit from this pattern by way of increased N NE flow which would advect drier air into our area from the north. On the other hand, a front that stalls closer to the immediate coast would warrant pops across our eastern zones for Sunday. But the trends have tended to favor the drier option. Finally, such vigorous NE flow would keep temps below normal for daytime highs. That system will exit to our NE on Monday, with mainly dry weather continuing for our area. The next short wave will then approach from the west Monday night and Tuesday, with climo or higher pops needed for Tuesday and perhaps into Wednesday with the passage of this short wave. .Aviation 01z Friday through Wednesday as of 900 pm Thursday... storms will linger around rwi through 02z. Patches of stratus will then likely develop after 08-09z; and some may result in short- lived, broken ifr-MVFR ceilings in the several hours centered around 11-12z - most likely where rain earlier occurred at piedmont sites and rwi. Patches of morning stratus, should some indeed develop late tonight, will lift and disperse toVFR by 14z. While isolated pulse-type airmass storms will be possible areawide Fri afternoon, storms will likely focus along a cold front and immediately-preceding pre- frontal trough lee low over the piedmont between 21z fri-00z sat, before subsequently spreading swd across fay just after the 00z taf period. Outlook: showers may linger at fay Fri night-sat, while ifr-MVFR ceilings otherwise develop in cooler nely post-frontal flow during the same time. Those ifr-MVFR ceilings, more the former overnight and latter during the day, will then linger through at least the weekend, with some scattering toVFR most likely at int gso by sun afternoon. Sub-vfr conditions may then linger at times all the way through early to mid next week, as a prevailing moist ely flow is maintained in the low lvls. Rah watches warnings advisories None. Synopsis... Mws near term... Mws short term... Cbl long term... Jjm np aviation... Mws |
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 |
| MROS1 - 8661070 - Springmaid Pier, SC | 83 mi | 58 min | 83°F | |||||
| WATS1 - Lake Wateree, SC | 86 mi | 68 min | SSE 1.9 G 2.9 | 78°F |
Wind History for Springmaid Pier, SC
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
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 |
| Laurinburg Maxton Airport, NC | 9 mi | 66 min | SSE 6 | 10.00 mi | Fair | 79°F | 73°F | 82% | 1017 hPa |
| Fayetteville, Fayetteville Regional Airport, NC | 21 mi | 65 min | WSW 4 | 10.00 mi | Mostly Cloudy | 81°F | 75°F | 82% | 1016.4 hPa |
| Mackall U. S. Army Airfield, NC | 21 mi | 62 min | N 0 | 10.00 mi | Mostly Cloudy | 77°F | 74°F | 93% | 1018.1 hPa |
Link to 5 minute data for KMEB
Wind History from MEB (wind in knots)
| 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 | 8 PM | 9 PM | |
| Last 24hr | N | SE | SW | SW | SW | W | SW | W | NW | W | SW | W | S | |||||||||||
| 1 day ago | Calm | SW | S | SW | SW | W G18 | W G18 | W | SW | SW | SW | SW | S | |||||||||||
| 2 days ago | Calm | Calm | Calm | SW | SW | SW | SW | SW | SW | S | S | SE |
Tide / Current Tables for Conway, RR. bridge, Waccamaw River, South Carolina
EDIT Weekend mode (on/off) (on/off) Help One Week of DataConway
Click for Map
Thu -- 02:06 AM EDT 0.88 feet Low Tide
Thu -- 06:42 AM EDT Sunrise
Thu -- 07:50 AM EDT 1.24 feet High Tide
Thu -- 12:58 PM EDT Moonset
Thu -- 02:28 PM EDT 0.57 feet Low Tide
Thu -- 07:54 PM EDT Sunset
Thu -- 08:28 PM EDT 1.34 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 02:06 AM EDT 0.88 feet Low Tide
Thu -- 06:42 AM EDT Sunrise
Thu -- 07:50 AM EDT 1.24 feet High Tide
Thu -- 12:58 PM EDT Moonset
Thu -- 02:28 PM EDT 0.57 feet Low Tide
Thu -- 07:54 PM EDT Sunset
Thu -- 08:28 PM EDT 1.34 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 |
| 1 | 0.9 | 0.9 | 0.9 | 1 | 1.1 | 1.2 | 1.2 | 1.2 | 1.2 | 1.1 | 0.9 | 0.8 | 0.7 | 0.6 | 0.6 | 0.7 | 0.9 | 1.1 | 1.3 | 1.3 | 1.3 | 1.3 | 1.2 |
Tide / Current Tables for Grahamville, Waccamaw River, South Carolina
EDIT (on/off) Help One Week of DataGrahamville
Click for Map
Thu -- 03:10 AM EDT 0.69 feet Low Tide
Thu -- 06:42 AM EDT Sunrise
Thu -- 08:48 AM EDT 0.99 feet High Tide
Thu -- 12:58 PM EDT Moonset
Thu -- 03:32 PM EDT 0.45 feet Low Tide
Thu -- 07:54 PM EDT Sunset
Thu -- 09:26 PM EDT 1.07 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 03:10 AM EDT 0.69 feet Low Tide
Thu -- 06:42 AM EDT Sunrise
Thu -- 08:48 AM EDT 0.99 feet High Tide
Thu -- 12:58 PM EDT Moonset
Thu -- 03:32 PM EDT 0.45 feet Low Tide
Thu -- 07:54 PM EDT Sunset
Thu -- 09:26 PM EDT 1.07 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 |
| 0.9 | 0.8 | 0.7 | 0.7 | 0.7 | 0.8 | 0.9 | 0.9 | 1 | 1 | 1 | 0.9 | 0.8 | 0.6 | 0.5 | 0.5 | 0.5 | 0.5 | 0.7 | 0.9 | 1 | 1.1 | 1.1 | 1 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES Local Image of Mid-Atlantic 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 Raleigh, NC (22,6,7,8)
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Ground Weather Radar Station Raleigh/Durham, NC
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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. |