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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 6:45AM | Sunset 5:47PM | Wednesday February 20, 2019 2:36 AM EST (07:36 UTC) | Moonrise 7:12PM | Moonset 7:39AM | Illumination 99% |  |
ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island- 1237 Am Est Wed Feb 20 2019
.small craft advisory in effect from 10 am est this morning through this evening...
Overnight..NE winds 5 kt. Waves less than 1 ft. Snow likely. Vsby 1 to 3 nm.
Wed..E winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Snow or rain or sleet. Vsby 1 nm or less.
Wed night..SE winds 10 to 15 kt with gusts to 25 kt...becoming sw 5 to 10 kt after midnight. Waves 1 to 2 ft. Rain.
Thu..W winds 10 kt. Waves 1 ft. Rain likely.
Thu night..N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Fri..N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Fri night..E winds around 5 kt. Waves 1 ft or less. A chance of rain.
Sat..S winds 5 to 10 kt. Waves 1 to 2 ft. Rain.
Sun..SW winds 15 to 20 kt...becoming w. Waves 3 ft. Showers likely through the day.
.small craft advisory in effect from 10 am est this morning through this evening...
Overnight..NE winds 5 kt. Waves less than 1 ft. Snow likely. Vsby 1 to 3 nm.
Wed..E winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Snow or rain or sleet. Vsby 1 nm or less.
Wed night..SE winds 10 to 15 kt with gusts to 25 kt...becoming sw 5 to 10 kt after midnight. Waves 1 to 2 ft. Rain.
Thu..W winds 10 kt. Waves 1 ft. Rain likely.
Thu night..N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Fri..N winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Fri night..E winds around 5 kt. Waves 1 ft or less. A chance of rain.
Sat..S winds 5 to 10 kt. Waves 1 to 2 ft. Rain.
Sun..SW winds 15 to 20 kt...becoming w. Waves 3 ft. Showers likely through the day.
ANZ500 1237 Am Est Wed Feb 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A strong low pressure system will impact the region late tonight through Wednesday night. Low pressure will then push off to the north and east on Thursday as a frontal boundary passes through the waters. High pressure will build to the north through week's end. Small craft conditions will be possible on Thursday.
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A strong low pressure system will impact the region late tonight through Wednesday night. Low pressure will then push off to the north and east on Thursday as a frontal boundary passes through the waters. High pressure will build to the north through week's end. Small craft conditions will be possible on Thursday.
7 Day Forecast for Marine Location Near Sanford, VA
Hourly EDIT Helplocation: 37.98, -75.63 debug
Area Discussion for - Wakefield, VA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kakq 200552 afdakq area forecast discussion national weather service wakefield va 1252 am est Wed feb 20 2019 Synopsis Unsettled conditions return tonight into Wednesday as the next storm system moves northeast from the gulf of mexico. A frontal boundary then stalls over the southeast and mid atlantic states through Friday. Near term through today As of 840 pm Tuesday... latest msas has high prs over ny extending south along the delmarva. Meanwhile a trof was located over the mts. Sfc obs and radar trends support the current gridded forecast as the high to the north is keeping the lower levels dry this evening with the closest pcpn reaching the ground (rain mixed with sleet) noted across central and ERN nc. Appears we have a few more hours of virga before enuf moistening occurs to allow pcpn to reach the ground. Most high res data supports pcpn spreading north after 03z from the SW and not until after 06z north of i64. Sfc temps are slow to drop into the mid-upr 30s this eve with the coldest readings and lowest dew point temps along the coast. Expect the first batch of overrunning pcpn (rain sleet) to break out first across the south and east. As it gets farther north and we start to wet bulb out, thermal profiles support snow and sleet with pcpn not expected to break out until after 09z across the lwr md ERN shore. So, expect for minor tweeks given the current conditions, not much change needed to the ongoing forecast and headlines attm. May need adjustments once pcpn develops. Waa from the south after 09z will begin the process of slowly changing p-types to mainly rain across the se, mixed pcpn over most of the fa except remaining snow across the far north. Lows 30-35. Pvs dscn: overall, forecast rationale is very similar to past couple of packages. Did make a minor adjustment down with snow to account for a quicker mix to sleet ice pellets courtesy of strong h7-85 warm nose which will work in after 09z tonight. At the same time, 1000-850mb thickness values will be slow to increase as surface high pressure remains in vicinity of SRN new england. Thus, expect a quick transition from frozen to freezing precipitation after 12z 7am wed. Again... Given this quick progression, snowfall totals came down slightly for all but far northern zones. Did add a row to the winter weather advisory from brunswick, va to eastern henrico. These areas will experience a brief glaze of fzra pl which coincides with the morning rush hour window (10z-14z). Points just east of this area will bear watching, but should be just warm enough for a cold, albeit briefly sleety... Rain per forecast soundings. For that reason, will hold out of advisory for the time being and monitor. Warm air aloft will continue to deepen through the aftn Wednesday, while the cool surface layer slowly thins out. Most areas will hover just above 32f, and rise slowly by mid-late aftn, with the exception of the far NW where some pockets of freezing rain should persist, bringing at least a glazing of trees and elevated surfaces. Snow accum is forecast to range from a t-0.5" from the SW piedmont to the va ERN shore, with ~1" (greater sleet concentration given previously referenced h7 waa) from the central piedmont toward the ric metro and most of the md ERN shore, and 2-3" for the NW piedmont, n-central va, and dorchester md. Ice accum is forecast to range from a few hundredths of an inch for the i-95 corridor and ~0.1-0.15" over the piedmont. Forecast highs Wednesday range from the low 30s nw to the upper 30s low 40s central, and low 50s far se. Mostly rain by Wednesday night (albeit a cold rain nw) with temperatures remaining rather steady through the night. A cold front aloft slowly pushes through the area Thursday with the highest rain chances shifting se. Temperatures will be challenging Thursday and will largely be dictated by whether or not any clearing can occur by aftn. Temperatures aloft will be quite warm (6-10f) at 850mb, but the low-level cool airmass my not completely scour out if clouds hold strong. For now, forecast highs are mainly in the 50s. Total liquid QPF for the event ranges from 0.75" S to 1.25" n. Short term tonight through Friday As of 410 pm est Tuesday... gradually clearing Wed night, though rain chances linger across remnant frontal zone Wednesday night. Cool air wedge slowly breaks down Thursday morning, with models indicating quick return to warm sector mixing Thu aftn. GFS mav guidance remains most optimistic with the NAM predictably slowest to break down the wedge. Based on similar events over the past few weeks, truth is likely somewhere in the middle, with weakening wedge likely allowing for clearing and some warming into the late morning thu. For that reason, have nudged up closer to the ecs numbers. This yields highs in the u50s-low 60s inland with temps in the 50s across the east with lingering clouds. Weak boundary will linger across the southern tier of the cwa into Friday. Could see some lingering showers light rain across the SE with shallow overrunning moisture on Friday. However, should just portend to more clouds than Sun and a short-lived lull in precipitation Friday. Slightly cooler with highs mainly in the 50s. Long term Friday night through Tuesday As of 340 pm Tuesday... high pressure slowly moves from ny to new england Fri as a cad wedge pattern remains in place over the cwa. An area of steady light-moderate rain will quickly overspread the entire region (from SW to ne) late Fri evening through Sat am as a potent upper shortwave (along W sfc low pressure) moves from the rockies to the plains midwest. Rain continues throughout the region during the day on sat. A warm front lifts N toward the region late Sat (and crosses the region Sat night) in response |
to a deepening area of sfc low pressure tracking from the plains to the midwest. Temperatures remain in the 40s in most areas on sat as the rain falls. The steady rain departs to the N NE sat night as the warm front crosses the region. Temperatures will slowly rise Sat night (forecast temps at 12z Sun range from the upper 40s nw-upper 50s se) as winds veer to the S then ssw behind the front. Shower chances continue on Sun before the trailing cold front crosses the region during the aftn as the aforementioned sfc low tracks into SE canada. Not much in the way of QPF W the cold FROPA on sun. Expect it to be a warm day throughout the region on Sun as temperatures rise into the low- mid 70s in most areas (w 60s on the ERN shore). Drier (but not that cold) Mon mon night as sfc high pressure briefly settles into the region. Our next chance of rain is late tue-wed, as low pressure approaches from the west. Highs on Mon will be in the upper 50s-low 60s in most areas (except for mid 50s on the ern shore). Lows mainly in the 30s Mon night W highs rising into the upper 40s n-mid 50s in SE va NE nc on tue. Aviation 06z Wednesday through Sunday As of 1250 am est Wednesday... high pressure is centered over the mid-atlantic coast as of 06z, with low pressure over the lower mississippi valley. Moisture is increasing from the wsw aloft with mid and high clouds thickening across the region. Pcpn will overspread the region, mainly after 08z for most sites, but after 12z for sby. Pcpn likely begins as sn or sn pl at ric sby phf, with a brief period of of ra pl at orf and mainly ra at ecg. PrimarilyVFR MVFR through 12z, although occasional ifr vsby in sn is possible at ric after 09z. CIGS fall to MVFR after 12z, and ifr generally between 15-18z. Pcpn quickly changes to ra at phf after 12z, to fzra pl at ric through about 15z before changing to ra, with sn or sn pl at sby through 18-20z. Low pressure lifts off the mid- atlantic coast tonight, with ifr CIGS and occasional ra dz br persisting. The chc of rain gradually ends from nw-se Thursday with conditions slowly improving. High pressure builds N of the region Thursday night into Friday. However, moisture will continue to spread over the region with clouds and a minimal chc of light rain continuing. Low pressure, and more rain and flight restrictions are expected Friday night into Saturday. A cold front crosses the region Saturday. Marine As of 250 pm est Tuesday... in the near term, high pressure has built northwest of the waters which has allowed for winds to diminish through the afternoon hours. Winds are N to NE and range from 5 to 15 knots with seas of 2 to 4 feet and waves of 1 to 2 feet in the bay. The next storm system approaches the region from the SW later this evening and overnight leading to the next period of unsettled conditions. East winds increase from south to north over the waters tomorrow morning as the system approaches and lifts across the region. Winds increase to 15 to 25 knots over the coastal waters with gusts to 30 knots over the coastal waters and 15 to 20 knots over the bay lower james during the day on Wednesday. Seas will also be on the increase due to onshore flow, expect seas to build to 4 to 6 feet by Wednesday evening night. As a result, small craft advisories are in effect for all water minus the upper rivers through much of the day Wednesday. The SCA for the coastal waters lasts through early Thursday morning and may need to be extended due to continued elevated seas. Finally, visibilities may be diminished to 1 nm or less at times late tonight into Wednesday, particularly over the northern coastal waters and chesapeake bay, due to snow and sleet. Winds diminish and become SW over the waters by Wednesday night, and w to NW Thursday as a frontal boundary settles south of the waters. Seas may linger to 5 feet over the coastal waters, but sub-sca conditions are expected over the bay during this period. High pressure builds into the region late Thursday into Friday before another system approaches the region late Friday into Saturday. A stronger cold front likely impacts the region by the second half of the weekend. Akq watches warnings advisories Md... Winter weather advisory from 6 am this morning to noon est today for mdz022>024. Winter weather advisory from 6 am this morning to 3 pm est this afternoon for mdz021. Nc... None. Va... Winter weather advisory until 9 pm est this evening for vaz048- 509-510. Winter weather advisory until 6 pm est this evening for vaz061- 062-069-511-512-515-516. Winter weather advisory until 3 pm est this afternoon for vaz060-065>068-079-080-513-514. Winter weather advisory until 6 pm est this evening for vaz064- 075>078-517-519-521-522. Marine... Small craft advisory from 10 am this morning to 6 am est Thursday for anz650-652-654. Small craft advisory from 7 am this morning to 6 am est Thursday for anz656-658. Small craft advisory from 7 am this morning to 7 pm est this evening for anz632-634. Small craft advisory from 4 am early this morning to 4 pm est this afternoon for anz633. Small craft advisory from 10 am this morning to 7 pm est this evening for anz630-631. Small craft advisory from 7 am this morning to 4 pm est this afternoon for anz638. Synopsis... Mam near term... Ajz mpr mam short term... Mam long term... Eri aviation... Ajz marine... Ajb |
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 |
| 44089 | 22 mi | 36 min | 42°F | 2 ft | ||||
| WAHV2 - 8631044 - Wachapreague, VA | 26 mi | 36 min | Calm G 2.9 | 36°F | 45°F | 1035.4 hPa (-0.7) | ||
| BISM2 - 8571421 - Bishops Head, MD | 27 mi | 36 min | NE 8.9 G 11 | 35°F | 42°F | 1036.1 hPa (-1.2) | ||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 37 mi | 36 min | NNW 4.1 G 5.1 | 35°F | 41°F | 1037 hPa (+0.0) | ||
| RPLV2 - 8632837 - Rappahannock Light, VA | 37 mi | 36 min | ENE 7 G 8 | 1036.5 hPa (-1.2) | ||||
| LWTV2 - 8635750 - Lewisetta, VA | 44 mi | 36 min | E 5.1 G 6 | 38°F | 41°F | 1035.6 hPa (-1.4) | ||
| CA2 - 8571892 - Cambridge, MD | 47 mi | 36 min | 35°F | 40°F | 1036.2 hPa (-0.7) | |||
| PPTM2 - 8578240 - Piney Point, MD | 49 mi | 42 min | E 2.9 G 4.1 |
Wind History for Bishops Head, MD
(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 | NW G13 | N G11 | NW | NW | NW | N G12 | NW G13 | N G13 | NW G13 | NW G12 | NW G18 | NW G16 | N G13 | N | N G7 | N | N | N | N | NE | NE | E | NE | NE |
| 1 day ago | S | S | SE | SW | NW | NW | W | W | W | W | W | W | NW G19 | NW G22 | NW G20 | NW G21 | NW G17 | NW G19 | NW G21 | NW G17 | N G13 | NW | N G12 | |
| 2 days ago | NE G12 | NE G14 | NE G12 | NE G9 | NE | E | E G6 | W | W | SE | SE | W | S | NE | SE | SE | SE | SE | S | SW | S | S G9 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wallops Flight Facility Airport, VA | 9 mi | 42 min | NNE 4 | 10.00 mi | Mostly Cloudy | 37°F | 17°F | 44% | 1035.9 hPa |
| Melfa / Accomack Airport, VA | 24 mi | 41 min | N 0 | 10.00 mi | Mostly Cloudy | 36°F | 27°F | 72% | 1036.2 hPa |
Wind History from WAL (wind in knots)
| 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 | NW | NW | N | NW | NW | N | NW | NW | W | NW | N | E | E | SE | Calm | Calm | Calm | Calm | Calm | Calm | N | NE | ||
| 1 day ago | S | Calm | W | S | SW | W G17 | W | W | NW G17 | NW G16 | NW G23 | NW G19 | NW G23 | NW G20 | NW G24 | NW G18 | NW G23 | NW G28 | N G24 | NW G19 | NW | N | N | NW |
| 2 days ago | N | N | N | N | N | N | NE | NE | NE | NE | NE | E | E | E | E | E | NE | NE | E | Calm | Calm | Calm | Calm | S |
Tide / Current Tables for Shelltown, Pocomoke River, Chesapeake Bay, Maryland
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataShelltown
Click for Map
Wed -- 12:42 AM EST 2.65 feet High Tide
Wed -- 06:46 AM EST Sunrise
Wed -- 07:29 AM EST -0.73 feet Low Tide
Wed -- 07:38 AM EST Moonset
Wed -- 01:09 PM EST 2.99 feet High Tide
Wed -- 05:46 PM EST Sunset
Wed -- 07:11 PM EST Moonrise
Wed -- 08:06 PM EST -0.66 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:42 AM EST 2.65 feet High Tide
Wed -- 06:46 AM EST Sunrise
Wed -- 07:29 AM EST -0.73 feet Low Tide
Wed -- 07:38 AM EST Moonset
Wed -- 01:09 PM EST 2.99 feet High Tide
Wed -- 05:46 PM EST Sunset
Wed -- 07:11 PM EST Moonrise
Wed -- 08:06 PM EST -0.66 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 |
| 2.5 | 2.6 | 2.4 | 1.8 | 1.1 | 0.3 | -0.3 | -0.7 | -0.7 | -0.1 | 0.8 | 1.8 | 2.6 | 3 | 2.9 | 2.4 | 1.7 | 0.9 | 0.1 | -0.4 | -0.7 | -0.4 | 0.3 | 1.2 |
Tide / Current Tables for Pocomoke City, Pocomoke River, Chesapeake Bay, Maryland
EDIT (on/off) Help One Week of DataPocomoke City
Click for Map
Wed -- 02:59 AM EST 1.80 feet High Tide
Wed -- 06:46 AM EST Sunrise
Wed -- 07:38 AM EST Moonset
Wed -- 09:28 AM EST -0.60 feet Low Tide
Wed -- 03:26 PM EST 2.04 feet High Tide
Wed -- 05:46 PM EST Sunset
Wed -- 07:11 PM EST Moonrise
Wed -- 10:05 PM EST -0.54 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:59 AM EST 1.80 feet High Tide
Wed -- 06:46 AM EST Sunrise
Wed -- 07:38 AM EST Moonset
Wed -- 09:28 AM EST -0.60 feet Low Tide
Wed -- 03:26 PM EST 2.04 feet High Tide
Wed -- 05:46 PM EST Sunset
Wed -- 07:11 PM EST Moonrise
Wed -- 10:05 PM EST -0.54 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 |
| 0.6 | 1.2 | 1.6 | 1.8 | 1.7 | 1.3 | 0.7 | 0.2 | -0.3 | -0.6 | -0.6 | -0.2 | 0.4 | 1.1 | 1.7 | 2 | 2 | 1.7 | 1.2 | 0.6 | 0 | -0.4 | -0.5 | -0.4 |
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 (2,6,7,8)
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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. |