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Marine Weather and Tides
Version 3.4 |
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 6:25AM | Sunset 7:48PM | Thursday April 18, 2019 12:47 PM EDT (16:47 UTC) | Moonrise 6:00PM | Moonset 5:17AM | Illumination 99% |  |
ANZ537 Tidal Potomac From Cobb Island To Smith Point- 1101 Am Edt Thu Apr 18 2019
.small craft advisory in effect through Friday afternoon...
Rest of today..SE winds 5 to 10 kt with gusts to 20 kt...becoming S 15 kt with gusts to 25 kt late. Waves 1 to 2 ft...building to 3 ft late.
Tonight..S winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Fri..S winds 10 to 15 kt with gusts to 30 kt. Waves 3 ft. Showers and tstms likely.
Fri night..S winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. Showers and tstms.
Sat..S winds 10 to 15 kt with gusts to 30 kt. Waves 3 ft. A chance of showers.
Sat night..S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Sun..W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers through the day.
Mon..SW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
.small craft advisory in effect through Friday afternoon...
Rest of today..SE winds 5 to 10 kt with gusts to 20 kt...becoming S 15 kt with gusts to 25 kt late. Waves 1 to 2 ft...building to 3 ft late.
Tonight..S winds 10 to 15 kt with gusts to 25 kt. Waves 2 to 3 ft.
Fri..S winds 10 to 15 kt with gusts to 30 kt. Waves 3 ft. Showers and tstms likely.
Fri night..S winds 15 to 20 kt with gusts to 30 kt. Waves 3 ft. Showers and tstms.
Sat..S winds 10 to 15 kt with gusts to 30 kt. Waves 3 ft. A chance of showers.
Sat night..S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Sun..W winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers through the day.
Mon..SW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1101 Am Edt Thu Apr 18 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A warm front will cross the waters today. Strong low pressure and its cold front will likely impact the waters Friday and Friday night, with its effects lingering into the weekend. Small craft advisories will likely be needed Friday night through Saturday night, possibly continuing into Sunday. Gale warnings are possible Friday and Friday night.
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A warm front will cross the waters today. Strong low pressure and its cold front will likely impact the waters Friday and Friday night, with its effects lingering into the weekend. Small craft advisories will likely be needed Friday night through Saturday night, possibly continuing into Sunday. Gale warnings are possible Friday and Friday night.
7 Day Forecast for Marine Location Near Tall Timbers, MD
Hourly EDIT Helplocation: 38.15, -76.63 debug
Area Discussion for - Wakefield, VA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kakq 181450 afdakq area forecast discussion national weather service wakefield va 1050 am edt Thu apr 18 2019 Synopsis A warm front will lift well north of the area this afternoon. A strong cold front arrives late Friday. An upper level low will be slow to lift northeast over the weekend. Near term until 6 pm this evening As of 1045 am edt Thursday... late this morning, a warm front was still lingering acrs extrm nrn va, as sfc winds just about everywhere over the CWA were ssw genearlly 5-10 kt. That warm front will lift well north of the region this aftn. This will result in a warm day acrs the entire fcst area, esply near the coast in va-md, as compared to yesterday, even right near the waters of the bay ocean (though those areas will not be as warm as inland). Mainly sct-bkn ci this aftn, and sct high based cu, esply inland. Ssw winds will average 10-15 kt, with gusts to 20-25 kt. Highs in the upper 70s to mid 80s, except upper 60s to lower 70s right along the immediate coast. Short term 6 pm this evening through Saturday As of 410 am edt Thursday... the first slug of overrunning moisture pcpn in advance of a cold front will start to move into the area from the wsw late tonight Fri morning m the wsw late Thu night into Fri morning (mainly west of i-95). Remaining mild tonight W most lows 60-65f. Upper trough sharpens significant W of the mountains Fri and eventually closes off as it pushes into the tn valley fri. The attendant sfc lo lifts NE into the ERN oh valley Fri afternoon w its trailing cold front entering the mountains early fri evening. That front will be slow to push E to the coast fri night due to deep layered S flow sfc-aloft. Models continue to hone in on a narrow axis of moisture deep layered moisture. This influx of deep layer gulf moisture will once again support pw values of 1.5-1.75" (or +2 to +3 std dev) over the local area late Fri into Fri night, and cause a spike in sfc dew points. Expect periods of showers tstms with the potential for some locally heavy rainfall Fri aftn into Fri night. QPF of 1-1.5" W the potential for locally higher totals. SPC continues w a slight risk for the NRN portion of the fa Fri fri night and an enhanced risk over the SRN half (of va into NE nc). Additionally... Most of the fa is in a slight risk for excessive rainfall. Highs on Fri will range through the 70s... U60s right at the immediate coast. Regarding the convective threat, there remains some question as to how much instability can be generated given the forecasted cloud coverage, but that may be overtaken to some degree by the favorable dynamics the system will have. Strong forcing for ascent will exist W wind field aloft easily able to support damaging winds in any bowing line segments. Additionally, potential slight backing of near sfc low level winds across se va-ne nc will need to be watched very closely fri afternoon... ESP if any clearing can be realized. Aside from anticipated possible hydro issues, timing for any strong svr storms appear to be late aftn evening (4p-8p) west of i95, between 8p-midnight along and east of i95, and 12a-3a along the immediate coast. Rainfall convective wind potential will continue to be highlighted in the hwo, and will continue to mention for gusts even outside of convection due to tightening pressure gradient Fri morning. Appears our area may approach wind advisory criteria ahead of storms Fri morning afternoon along the coast... And will need to monitor that in future packages. The cold front pushes offshore late Fri night early Sat but lingering moisture combined an upper low to our W may lead to isold sct shras during the remainder of sat. Otw... Partly sunny to mostly cloudy on sat. Lows Fri night ranging from the m50s w to the l60s e. Highs on Sat in the m-u60s. Long term Saturday night through Wednesday As of 400 pm edt Wednesday... upper-level low will be over the area during the day on Sunday. 20- 40 pops were put in for Sunday with the greatest chance in the northern parts of the area. As the upper-level low moves off to the ne, a SW flow will begin ahead of a front that moves south out of the great lakes. With the upper-level flow out of the west early next week, the front will stall and a chance of showers will be around for tue-wed. Models are showing that a wedge may develop |
Tuesday night and into Wednesday with scattered showers around. Temperatures will be cool on Sunday with the upper-level low over the area. Highs will be in the upper 60s to near 70 and lows in the 40s inland to mid 50s along the coast and eastern shore. 80s will return for Monday all the way to the atlantic coast with a SW wind. Temps will remain mild for the remainder of the week as a front stalls across the area, with highs ranging from the 60s to near 70. Aviation 15z Thursday through Monday As of 635 am edt Thursday... other than sct-bkn st INVOF sby potentially until mid morning...VFR conditions expected through the 12z TAF forecast period. A warm front will lift northward across the area today with south and southwest winds 10-15 knots and gusts 20-25 knots this afternoon. The next storm system will begin to impact the area fri, with flight restrictions possible in showers tstms in advance of the next cold front. Mdt-hvy downpours along with strong gusty winds possible Fri afternoon into Fri night. Marine As of 300 am edt Thursday... weak sfc frontal boundary situated near the mouth of the ches bay ATTM W sfc hi pres exiting SE new england. The front will return N as a warm front this morning as the sfc hi pres sets up off the coast. Ese winds mainly AOB 10 kt to start... Then becoming S this morning... Increasing to generally 15 kt... Maybe to 20 kt late at the mouth of the bay and on the ocean waters. Seas expected to reach near 5 ft this evening CAPE charles va on n. Scas expected to start this evening on the NRN portion of the ocean waters then for the bay and the SRN ocean waters tonight. Solid 20-25 kt sse winds expected most of Fri or by fri afternoon as sfc pres gradient tightens ahead of a cold front approaching from the w. Concern shifts to Fri evening night as period of strong scas (sustained)... And possible gale gusts (esp S of CAPE charles va). Wind probs continuing to show near 50% prob for gale gusts over far SRN ocean waters... Though some of the model guidance has shown a bit of a weakening trend from past runs. Convection will also likely cross the waters Fri night accompanied by gusty winds. Won't extend SCA past 00z 20... But will add a gale watch from 00z-08z 20 S of parramore island va (to currituck beach light nc). Waves seas rise as well in response to the stronger s winds by Fri afternoon into Fri night. Slowly improving conditions are expected over the weekend as an upper level low is slow to exit to the ne. Tides coastal flooding As of 300 am edt Thursday... increased S winds Friday into Friday night will result in rising tidal departures to 1 to 1.5 ft above mllw on the lower md eastern shore along the ches bay (esp crisfield and bishops head md). Minor flooding is possible during the times of high tide Fri afternoon and Fri night. Akq watches warnings advisories Md... None. Nc... None. Va... None. Marine... Small craft advisory from 8 am to 8 pm edt Friday for anz633- 635>638. Small craft advisory from 4 pm this afternoon to 8 pm edt Friday for anz634-650. Small craft advisory from 7 pm this evening to 8 pm edt Friday for anz630>632-652-654. Gale watch from Friday evening through late Friday night for anz654-656-658. Small craft advisory from 1 am to 8 pm edt Friday for anz656- 658. Synopsis... Tmg near term... Alb tmg short term... Alb long term... Cp aviation... Alb marine... Alb mpr tides coastal flooding... Akq |
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 |
| PPTM2 - 8578240 - Piney Point, MD | 5 mi | 47 min | SE 6 G 6 | |||||
| LWTV2 - 8635750 - Lewisetta, VA | 14 mi | 47 min | WSW 8.9 G 13 | 73°F | 61°F | 1015.7 hPa (-0.6) | ||
| SLIM2 - 8577330 - Solomons Island, MD | 15 mi | 47 min | SSW 5.1 G 8 | 69°F | 57°F | 1015.1 hPa (-0.8) | ||
| COVM2 - 8577018 - Cove Point LNG Pier, MD | 22 mi | 47 min | S 13 G 13 | 58°F | 1016.4 hPa | |||
| NCDV2 | 25 mi | 47 min | E 5.1 G 7 | 62°F | 64°F | 1014.7 hPa (-1.1) | ||
| BISM2 - 8571421 - Bishops Head, MD | 32 mi | 47 min | S 12 G 16 | 65°F | 66°F | 1016.6 hPa (-0.3) | ||
| CA2 - 8571892 - Cambridge, MD | 42 mi | 47 min | 71°F | 60°F | 1015.6 hPa (-0.8) | |||
| 44058 - Stingray Point, VA | 45 mi | 47 min | S 7.8 G 7.8 | 62°F | 59°F | 1015.2 hPa (+0.0) |
Wind History for Piney Point, MD
(wind in knots) EDIT (on/off) Help| 1 PM | 2 PM | 3 PM | -12 PM | 5 PM | 6 PM | 7 PM | 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 | |
| Last 24hr | S | S G10 | SE | S | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | E | SE | SE | SE | SE | SE | E | SE | SE | |
| 1 day ago | NW | N | SW | S | SW | SW | SW | SW G16 | W G10 | W | NW | NW | NW | W | NE | SW | S | S | ||||||
| 2 days ago | N | NW | NW | NW | N | NW | NW G22 | W | W | W G15 | W G14 | NW | NW | W G12 | NW | NW | NW | NW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD | 11 mi | 54 min | S 9 | 10.00 mi | Fair | 72°F | 60°F | 66% | 1015.5 hPa |
| St Marys County Airport, MD | 12 mi | 64 min | SW 8 | 10.00 mi | Partly Cloudy | 72°F | 59°F | 65% | 1016.3 hPa |
| Patuxent River, Naval Air Station, MD | 16 mi | 55 min | SW 9 | 10.00 mi | A Few Clouds | 74°F | 59°F | 60% | 1015.6 hPa |
| Tappahannock-Essex County Airport, VA | 24 mi | 72 min | S 7 | 10.00 mi | Fair | 72°F | 59°F | 65% | 1016.6 hPa |
Wind History from NUI (wind in knots)
| 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 | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | |
| Last 24hr | E | E | E | NE | E | E | E G19 | E | E | E | E | E | E | E | Calm | NE | E | E | E | E | SE | S | S | S |
| 1 day ago | W | W | W | S | SE | SE | S | S | S | S | S | S | SW | SW | SW | SW | SW | W | N | Calm | NE | |||
| 2 days ago | W G32 | W G28 | W G31 | NW G30 | W G28 | NW G29 | W G30 | NW G24 | W G18 | W | NW G19 | W G18 | W G17 | W G17 | W | W | W | W | W | W | W | W | SW | W |
Tide / Current Tables for Coles Point, Virginia
EDIT Weekend mode (on/off) (on/off) Help One Week of DataColes Point
Click for Map
Thu -- 01:55 AM EDT 2.34 feet High Tide
Thu -- 06:16 AM EDT Moonset
Thu -- 06:27 AM EDT Sunrise
Thu -- 08:16 AM EDT -0.06 feet Low Tide
Thu -- 02:24 PM EDT 2.18 feet High Tide
Thu -- 07:00 PM EDT Moonrise
Thu -- 07:45 PM EDT Sunset
Thu -- 08:30 PM EDT 0.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 01:55 AM EDT 2.34 feet High Tide
Thu -- 06:16 AM EDT Moonset
Thu -- 06:27 AM EDT Sunrise
Thu -- 08:16 AM EDT -0.06 feet Low Tide
Thu -- 02:24 PM EDT 2.18 feet High Tide
Thu -- 07:00 PM EDT Moonrise
Thu -- 07:45 PM EDT Sunset
Thu -- 08:30 PM EDT 0.00 feet Low 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 |
| 1.9 | 2.2 | 2.3 | 2.1 | 1.6 | 1.1 | 0.6 | 0.2 | -0 | 0 | 0.4 | 1 | 1.5 | 1.9 | 2.2 | 2.1 | 1.7 | 1.2 | 0.7 | 0.3 | 0.1 | 0 | 0.4 | 0.9 |
Tide / Current Tables for Point Patience, 0.1 mile southwest of, Maryland Current
EDIT (on/off) Help One Week of DataPoint Patience
Click for MapFlood direction 315° true
Ebb direction 145° true
Thu -- 01:23 AM EDT -0.00 knots Slack
Thu -- 05:17 AM EDT -1.03 knots Max Ebb
Thu -- 06:16 AM EDT Moonset
Thu -- 06:26 AM EDT Sunrise
Thu -- 09:28 AM EDT 0.00 knots Slack
Thu -- 11:13 AM EDT 0.49 knots Max Flood
Thu -- 01:33 PM EDT -0.00 knots Slack
Thu -- 05:21 PM EDT -0.89 knots Max Ebb
Thu -- 06:59 PM EDT Moonrise
Thu -- 07:44 PM EDT Sunset
Thu -- 09:09 PM EDT 0.00 knots Slack
Thu -- 11:28 PM EDT 0.70 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for MapFlood direction 315° true
Ebb direction 145° true
Thu -- 01:23 AM EDT -0.00 knots Slack
Thu -- 05:17 AM EDT -1.03 knots Max Ebb
Thu -- 06:16 AM EDT Moonset
Thu -- 06:26 AM EDT Sunrise
Thu -- 09:28 AM EDT 0.00 knots Slack
Thu -- 11:13 AM EDT 0.49 knots Max Flood
Thu -- 01:33 PM EDT -0.00 knots Slack
Thu -- 05:21 PM EDT -0.89 knots Max Ebb
Thu -- 06:59 PM EDT Moonrise
Thu -- 07:44 PM EDT Sunset
Thu -- 09:09 PM EDT 0.00 knots Slack
Thu -- 11:28 PM EDT 0.70 knots Max Flood
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 |
| 0.5 | 0.1 | -0.3 | -0.6 | -0.9 | -1 | -1 | -0.8 | -0.5 | -0.2 | 0.2 | 0.5 | 0.4 | 0.2 | -0.2 | -0.5 | -0.8 | -0.9 | -0.9 | -0.7 | -0.4 | -0.1 | 0.4 | 0.7 |
Weather Map and Satellite Images
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GOES 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 Wakefield, VA (12,3,4,5)
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Ground Weather Radar Station Dover AFB, DE
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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. |