Saturday, August8, 2020
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Marine Weather and Tides
Tappahannock, VA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:18AMSunset 8:11PM Saturday August 8, 2020 4:48 AM EDT (08:48 UTC) Moonrise 10:04PMMoonset 9:53AM Illumination 81% Phase: Waning Gibbous; Moon at 19 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ537 Tidal Potomac From Cobb Island To Smith Point- 437 Am Edt Sat Aug 8 2020
Rest of the overnight..SW winds 5 kt. Waves less than 1 ft. Showers likely. Vsby 1 to 3 nm.
Today..NE winds 5 kt. Waves less than 1 ft. Scattered showers.
Tonight..W winds around 5 kt. Waves flat.
Sun..SE winds around 5 kt. Waves flat.
Sun night..S winds 5 kt. Waves less than 1 ft.
Mon..S winds 5 to 10 kt. Waves 1 ft or less.
Mon night..S winds 5 to 10 kt. Waves 1 ft.
Tue..S winds 5 to 10 kt. Waves 1 ft.
Wed..S winds 5 to 10 kt. Waves 1 ft. A chance of tstms. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 437 Am Edt Sat Aug 8 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A stationary front will remain just south of the area through Saturday before dissipating Sunday. High pressure will then build over the region over the second half of the weekend.


7 Day Forecast for Marine Location Near Tappahannock, VA
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location: 37.93, -76.86     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 080643 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 243 AM EDT Sat Aug 8 2020

SYNOPSIS. A weak surface boundary will remain near the local area through Saturday. This boundary will allow for additional showers and thunderstorms with locally heavy rainfall possible. High pressure settles over the area late in the weekend. Widely scattered afternoon thunderstorms will again be possible early next week.

NEAR TERM /THROUGH TONIGHT/. As of 240 AM EDT Saturday .

Latest analysis shows a nearly stalled frontal boundary in the vicinity of northern VA over to the MD eastern shore. This has been the focus for much of the precip early this morning. Overall coverage should diminish over the next several hours but will maintain slight chance to chance pops over the entire area. The front will slide a little further south today, thus the focus of scattered convection this afternoon and evening should be over the southern half of the area, however will keep at least chance pops in for the entire area. Isolated flash flooding threat will continue as soils remain saturated and flash flood guidance in the urban areas are under 1 inch per hour. Convection diminishes after 06Z Sunday, with just slight chance pops over the eastern half of the area through sunrise Sunday. High temps this afternoon in the mid to upper 80s and low temps Sunday morning in the upper 60s to lower 70s.

SHORT TERM /SUNDAY THROUGH MONDAY/. As of 240 AM EDT Saturday .

The front lingers in the vicinity of the area on Sunday, which will keep the chance of afternoon/evening showers and storms in the forecast, mainly over southern VA and NE NC. High temps will be a bit warmer ranging from the upper 80s to lower 90s. Low temps Sunday night in the upper 60s to lower 70s.

High pressure builds into the area from the west on Monday, and will help keep much of the area dry, however a weak front to our south will keep slight chance to chance pops in during the afternoon and early evening over the southern half of the area. High temps a couple degrees warmer on Monday generally in the lower 90s, with upper 80s close to the coast. Low temps Monday night in the upper 60s to lower 70s.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/. As of 345 PM EDT Friday .

Still looking like a more typical summertime pattern for the medium range period (Mon night through Fri). The large scale pattern through much of the period will feature high pressure (at the surface and aloft) offshore of the SE CONUS coast. At the beginning of next week, weak upper troughing is progged to be centered in the vicinity of the Mississippi River Valley. The main upper level flow will remain well to our north (mainly near or just north of the US/Canada border). The area of upper troughing will slowly approach the area from the west next week. This will allow for diurnal (mainly aftn-evening) tstm chances to continue from Tue-Fri. Will generally trend PoPs slowly upward from Tue-late next week as the weak upper trough nears the area. Will cap PoPs at 50% in the grids for now, while noting that the blends have likely PoPs for much of the forecast area during the aftn-evening on Thu/Fri. Highs Tuesday in the low-mid 90s, falling back into the low 90s on Wed. Highs around 90F on Thu/Fri with increased cloud cover/tstm chances. Lows mainly between 70-75F through the medium range period.

AVIATION /07Z SATURDAY THROUGH WEDNESDAY/. As of 110 AM EDT Saturday .

Brief flight restrictions early this morning due to scattered convection across the area. Sub VFR ceilings and visbys possible early this morning, especially at SBY where heavy rain has occurred over the past couple hours. Outside of convection, winds will be light and variable. Ceilings/visbys improve across all terminals by late this morning. Additional scattered storms expected this afternoon and evening, but chances are too low to mention in this TAF cycle.

Outlook . Mostly VFR conditions expected Sunday into early next week outside of isolated afternoon/evening storms which could result in brief flight restrictions.

MARINE. As of 240 AM EDT Saturday .

Quiet marine conditions expected this weekend despite a stalled frontal boundary lingering across the area. The boundary dissipates across the region allowing high pressure to return early next week. Variable winds aob 10 kts across the north with SSE winds aob 10 kts across the south thru Sun. South winds return thru the middle of next week. Waves 1-2 ft. Seas around 2 ft.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . None.

SYNOPSIS . JDM/RMM NEAR TERM . CMF SHORT TERM . CMF LONG TERM . ERI AVIATION . CMF MARINE . MPR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LWTV2 - 8635750 - Lewisetta, VA 21 mi48 min S 6 G 7 76°F 81°F1018.9 hPa (-0.3)
PPTM2 - 8578240 - Piney Point, MD 22 mi48 min SSE 9.9 G 12
NCDV2 29 mi48 min ESE 7 G 8 76°F 83°F1018.4 hPa (+0.0)
SLIM2 - 8577330 - Solomons Island, MD 35 mi48 min SE 6 G 7 76°F 83°F1018.9 hPa (-0.4)
YRSV2 - Chesapeake Bay,VA 37 mi78 min Calm 76°F 1020 hPa74°F
44058 - Stingray Point, VA 41 mi18 min ESE 12 G 14 77°F 83°F1021.7 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 41 mi66 min SSE 6 G 7 1019.3 hPa
BISM2 - 8571421 - Bishops Head, MD 48 mi48 min SSE 8.9 G 12 75°F 82°F1018.8 hPa (-0.5)
44062 - Gooses Reef, MD 49 mi18 min 76°F 82°F

Wind History for Lewisetta, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tappahannock-Essex County Airport, VA5 mi93 minNNE 610.00 mi73°F73°F100%1019.3 hPa

Link to 5 minute data for KXSA

Wind History from XSA (wind in knots)
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Last 24hr--------------S4S5W4S5S4SW4S3--CalmCalmCalm--CalmCalmN6--Calm
1 day agoCalmCalmCalm------------------------------------------
2 days ago--------------------------------------------SW3Calm

Tide / Current Tables for Tappahannock, Rappahannock River, Virginia
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Tappahannock
Click for Map
Sat -- 05:18 AM EDT     1.79 feet High Tide
Sat -- 06:17 AM EDT     Sunrise
Sat -- 10:53 AM EDT     Moonset
Sat -- 12:12 PM EDT     0.21 feet Low Tide
Sat -- 05:46 PM EDT     1.81 feet High Tide
Sat -- 08:08 PM EDT     Sunset
Sat -- 11:03 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.40.81.21.61.81.71.61.30.90.60.30.20.30.611.51.71.81.71.51.10.80.5

Tide / Current Tables for Wares Wharf, Rappahannock River, Virginia
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Wares Wharf
Click for Map
Sat -- 04:45 AM EDT     1.89 feet High Tide
Sat -- 06:16 AM EDT     Sunrise
Sat -- 10:53 AM EDT     Moonset
Sat -- 11:27 AM EDT     0.23 feet Low Tide
Sat -- 05:13 PM EDT     1.91 feet High Tide
Sat -- 08:07 PM EDT     Sunset
Sat -- 11:03 PM EDT     Moonrise
Sat -- 11:53 PM EDT     0.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.71.11.51.81.91.81.51.10.70.40.20.30.50.91.41.71.91.91.71.310.70.4

Weather Map
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wmap_A
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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (4,6,7,8)
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Ground Weather Radar Station Wakefield, VA
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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 numerous 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.