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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 6:43AM | Sunset 7:51PM | Sunday August 25, 2019 1:35 AM EDT (05:35 UTC) | Moonrise 12:25AM | Moonset 2:58PM | Illumination 28% |  |
AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 844 Pm Edt Sat Aug 24 2019
.small craft advisory in effect from Sunday afternoon through Monday morning...
Overnight..NE winds 10 kt, increasing to 10 to 15 kt. Seas 3 ft. Showers and tstms likely early this evening, then a chance of showers late.
Sun..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers with isolated tstms.
Sun night..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Isolated tstms in the evening. A chance of showers.
Mon..N winds 15 to 20 kt, becoming ne 10 to 15 kt in the afternoon. Seas 3 to 4 ft.
Mon night..N winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms after midnight.
Tue..N winds 10 kt, becoming sw. Seas 2 to 3 ft.
Wed..E winds 10 kt, becoming sw. Seas 2 ft. A chance of showers and tstms.
Thu..E winds 10 kt. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
.small craft advisory in effect from Sunday afternoon through Monday morning...
Overnight..NE winds 10 kt, increasing to 10 to 15 kt. Seas 3 ft. Showers and tstms likely early this evening, then a chance of showers late.
Sun..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of showers with isolated tstms.
Sun night..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Isolated tstms in the evening. A chance of showers.
Mon..N winds 15 to 20 kt, becoming ne 10 to 15 kt in the afternoon. Seas 3 to 4 ft.
Mon night..N winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers and tstms after midnight.
Tue..N winds 10 kt, becoming sw. Seas 2 to 3 ft.
Wed..E winds 10 kt, becoming sw. Seas 2 ft. A chance of showers and tstms.
Thu..E winds 10 kt. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
AMZ200 844 Pm Edt Sat Aug 24 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. A cold front will slowly move just offshore Sunday and Monday. Meanwhile, some gradual development is still possible with an area of low pressure to move ne from the bahamas and florida Sunday and Monday. Mariners should Monitor the forecast closely for potential changes. A weaker pressure pattern is expected to develop over the area by midweek.
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. A cold front will slowly move just offshore Sunday and Monday. Meanwhile, some gradual development is still possible with an area of low pressure to move ne from the bahamas and florida Sunday and Monday. Mariners should Monitor the forecast closely for potential changes. A weaker pressure pattern is expected to develop over the area by midweek.
7 Day Forecast for Marine Location Near Little River, SC
Hourly EDIT Helplocation: 33.86, -78.64 debug
Area Discussion for - Wilmington, NC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kilm 250049 afdilm area forecast discussion national weather service wilmington nc 849 pm edt Sat aug 24 2019 Synopsis High pressure will nose down the east coast this weekend into mon. Mainly cloudy skies are expected with scattered showers and thunderstorms possible as a stalled front remains just south and east of the area. A tropical low over southern florida tonight will slowly push off the florida east coast and track northeastward Sun thru the mid-week period of next week. It's closest approach will occur late Sun thru mon, and will remain well offshore as it passes by. Near term through Sunday night A cold front resides offshore although it has most likely become distorted as a modest sea breeze has formed. There is an east west 850mb front which the area just off CAPE fear seems to like from a convection standpoint. And for good measure there is some upper level jet dynamics that is or will be moving across the area shortly. For all of these features, not a lot happening with some thunder along the sea breeze and light showers elsewhere. There is just little instability to work with. I have trimmed back pops considerably for the overnight hours and through Sunday as the forcing exits and drier air pushes in. There is really no high resolution or global guidance showing much (if anything) after the late afternoon hours. Little change with the temperature forecast although I think upper 60s is a bit low for tonight with all the cloud cover lingering. Short term Monday through Tuesday night Models have come to a better agreement in the slow development of a tropical subtropical system, well offshore from the ga and sc coasts at the start of this period. It hooks up with the old frontal boundary or baroclinic zone during Mon and tracks ne along it, and gaining some speed as it begins to come in contact with the westerlies aloft. By Tue morning it's progged to be well offshore from CAPE hatteras, and even further offshore from norfolk by Wed daybreak. The bulk of the pcpn should stay off the ilm CWA coast even at it's closest approach directly from this is progged to early this period. Synoptically, models have dry sfc high pressure wedging down the east coast of the u.S Monday into tue, with the pressure pattern quite similar to winter-time pattern. Dry air is noted in the mid-levels thru Monday, with low levels having ne winds and moisture from off the atlantic, thus more clouds than sun. Low chance pops will be advertised for both days for mainly showers with possible thunder during daylights hrs. An eastward moving sfc cold front will reach the western carolinas late Tue night. Low chance pops ahead of the cold front will be advertised with moderate chance east of the i-95 corridor. Temps this period will run at or below climo thruout this period. Long term Wednesday through Saturday The start of this period will feature the tropical subtropical entity well offshore from the mid-atlantic states and tracking off to the ne. The main concern for Wed thru Fri will be the amplifying upper trof and the actual passage of a sfc cold front thru the entire ilm cwa. The main upper trof axis will either lie overhead or remain just west of the fa. With the latter likely to occur, resulting in the sfc front stalling across portions of the fa rather than pushing it entirely |
across the fa and off the carolina coasts. Still too early for a clean cfp at this time of the year. Will indicate pops in the low chance except moderate chance in the vicinity of the cold front. Over land areas, will indicate showers at night with daytime heating supporting thunder. And the adjacent atl waters where thunder will be advertised thruout the day. Temps thru this period will run near normal for daytime highs and at or slightly above normal for daily lows. Aviation 01z Sunday through Thursday As of 00z... A challenging period for aviation concerns as a cold front and wedging high pressure will be the main players. For tonight expect ifr CIGS to develop via the abundant moisture and overrunning setup. Expect a slow mixing out of ifr conditions Sunday morning as the Sun angle creeps ever lower with the passing days. A few passing showers are possible at terminals tonight and isolated thunder is possible aft 18z depending on how much insolation can get through cigs. Extended... Front will likely move just off the coast into Sunday but lingering moisture likely to lead to additional restrictions. Also watching potential tropical system moving ne just off the coast into early next week. Confidence low on related specifics at this time. Marine Tonight thru Sun night: kind of a lazy northeast flow across the waters this afternoon as high pressure pushes in from the northeast. I havn't seen much more than ten knots or so. This will gradually change as the flow becomes better defined in time as troughing offshore and the high team up. This sets the stage for sustained winds of 15-20 knots and embedded higher surges especially late Sunday into Sunday night. These winds could spawn a small craft advisory later Sunday into Sunday night. Will go ahead and issue the advisory mon thru thu: all eyes will be on the tropical subtropical entity moving off to the ne, and remaining over the adjacent offshore waters at it's closest approach to the local waters early mon. Will be partially under the isobaric pattern associated with the "entity" early this period. NE winds will peak late Sun night into mon, possibly reaching SCA levels, mainly in gusts. In addition, seas will have already built to SCA levels of 6+ ft at the start of this period. Seas will be dominated by NE wind driven waves at 5 to 6 second periods... With an underlying 7 to possibly 8 second period SE "pseudo" or "fresh" swell. For mon night thru wed, looking at diminishing winds and subsiding seas in the wake of the departing "entity" and ahead of a slowly approaching cold front from the west. Modest chance for convection will occur early on this period with diminishing pops there-after. Will see diurnally induced convection over the warm waters at night, adding to the convection already along that baroclinic zone early on this period. Ilm watches warnings advisories Sc... None. Nc... None. Marine... Small craft advisory from 2 pm Sunday to noon edt Monday for amz250-252-254-256. Synopsis... Dch near term... Shk short term... Dch long term... Dch aviation... 31 marine... Dch shk |
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 |
| 41119 | 8 mi | 46 min | 84°F | 2 ft | ||||
| 41024 - Sunset Nearshore (SUN 2) | 9 mi | 88 min | NE 14 G 18 | 74°F | 84°F | 1017.3 hPa | ||
| MROS1 - 8661070 - Springmaid Pier, SC | 20 mi | 48 min | 72°F | |||||
| 41108 | 34 mi | 36 min | 83°F | 4 ft | ||||
| WLON7 | 44 mi | 54 min | 73°F | 85°F | 1018.4 hPa | |||
| NIWS1 - North Inlet-Winyah Bay Reserve, SC | 46 mi | 111 min | N 6 | 74°F | 1017 hPa | 74°F |
Wind History for Springmaid Pier, SC
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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 |
| North Myrtle Beach Grand Strand Airport, SC | 5 mi | 3.7 hrs | N 7 | 8.00 mi | Light Rain | 75°F | 72°F | 90% | 1017.6 hPa |
| Myrtle Beach Air Force Base, SC | 19 mi | 4.7 hrs | N 7 | 10.00 mi | Overcast | 76°F | 73°F | 94% | 1017.3 hPa |
Link to 5 minute data for KCRE
Wind History from CRE (wind in knots)
| 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 | 12 AM | 1 AM | |
| Last 24hr | N | N | NE | N | N | Calm | NE | E | E | E | E | SE | E | NE | N | N | N | NE | N | N | ||||
| 1 day ago | SW | SW | SW | W | S | S | S | S | SW | SW | W | W | Calm | |||||||||||
| 2 days ago | SW | SW | W | W | S | S | SW | S | S | S | SW |
Tide / Current Tables for Nixon Crossroads, South Carolina
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Tide / Current Tables for Sunset Beach Pier, Atlantic Ocean, North Carolina
EDIT (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images
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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 Wilmington, NC (1,6,7,8)
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Ground Weather Radar Station Wilmington, 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. |