Tuesday, July7, 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 5:53AMSunset 8:35PM Tuesday July 7, 2020 5:07 AM EDT (09:07 UTC) Moonrise 9:44PMMoonset 7:07AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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- 436 Am Edt Tue Jul 7 2020
Rest of the overnight..SW winds 10 kt. Waves 1 ft. Numerous showers and tstms.
Today..S winds 10 to 15 kt. Waves 1 to 2 ft. Scattered showers and tstms.
Tonight..S winds 10 to 15 kt. Gusts up to 20 kt until early morning. Waves 1 to 2 ft.
Wed..SE winds 5 to 10 kt. Waves 1 ft.
Wed night..SE winds 5 to 10 kt. Waves 1 ft.
Thu..E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers.
Thu night..E winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A chance of showers.
Fri..W winds 5 to 10 kt. Waves 1 to 2 ft. Showers likely with a chance of tstms, then a chance of showers after midnight.
Sat..W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 436 Am Edt Tue Jul 7 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure over the atlantic will control the weather pattern through Tuesday. Low pressure will develop to the south Wednesday and it may impact the waters late in the week.


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 070847 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 447 AM EDT Tue Jul 7 2020

SYNOPSIS. High pressure pushes off the coast today. Low pressure slowly drifts northeast along the Carolina coast Wednesday and Thursday before lifting northeast along the mid Atlantic coast Friday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. As of 340 AM EDT Tuesday .

Convective complex along the ern shore still going strong despite slowly weakening. High res data indcts this systm conts to weaken but lingers across the ern shore thru 12Z (and even a bit longer from SBY-OXB). Thus, will keep PoPs going there this morning.

Models show the trof moving offshore later this morning with the offshore high dominating. Daytime heating will combine with left over bndrys (including sea-breeze) for isltd-sct convection to dvlp aftr 18Z. Best coverage will be across the lwr Md ern shore west of I95. Will keep 30-40 PoP there with slght chc PoPs elsewhere. No svr storms expected today, just typical summer-time ones. Otw, pt sunny with highs in the upr 80s-lwr 90s, a bit cooler at the beaches. HI values mid-upr 90s.

SHORT TERM /6 PM THIS EVENING THROUGH THURSDAY NIGHT/. As of 340 AM EDT Tuesday .

Mstly clr/pt cldy tonite as any lingering convection across the sw dissipates after ss. Attn then turns to the moisture from the systm to the south. Latest data suggests this moisture a bit slower to move n north. Will limit late nite PoP to the NC zones. Lows 70-75.

Low pres progged to slowly drift ne across the coastal Carolinas late Wed thru Thurs nite with a sfc trof dvlpng along the coast. Abundant tropical moisture overspreads the region (PW's 1.5 - 2 inches) with the steadiest and heaviest pcpn progged to hug the coast ivof the trof. Thus, PoPs increase Wed aftrn and cont thru Thurs nite with the highest PoPs across sern VA/ne NC (likely for now). WPC has this area outlooked in a marginal day 2 ERO risk with a Wed nite time frame. The marginal ERO risk area expands across most of the local area on Thurs mainly for localized flash flooding. Highs Wed 85-90. Lows 70-75. Highs Thurs in the mid 80s. QPF's have been raised to btwn 1-2 inches with lclly higher amts especially along the sern coastal areas.

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

After the coastal low moves northeast of the area, expect a broad upper trough to settle in across the eastern part of the United States through the weekend. This will keep a residual surface trough across the area as well leading to the typical summertime scattered afternoon/evening showers and storms. Best chances for this would be Friday and again Saturday with a little more upper moisture but each day will have chances for showers/storms. Temperatures seasonable generally in the upper 80s and lower 90s. Lows in the upper 60s/lower 70s.

AVIATION /09Z TUESDAY THROUGH SATURDAY/. As of 120 AM EDT Tuesday .

Based off the current radar trends, will keep convection going at SBY for the next svrl hrs as the convective complex slowly weakens along the ern shore. Otw, VFR conditions expctd thru the forecast period as high pressure moves off the coast. Any convection will be sct in coverage aftr 18Z and not included in the forecast attm. South winds at 10 kts or less.

OUTLOOK . Increased coverage of showers/tstms is expected Wed through Sat as low pressure is expected to lift NE along the coastal Carolinas and Mid Atlantic coast. Patchy morning stratus is also possible Thurs through Sat as low-level moisture increases.

MARINE. As of 430 AM EDT Tuesday .

Generally south winds tonight through Wednesday with the broad area of high pressure off the coast and weak trough of low pressure inland. The southerly winds will increase Tuesday evening (especially across the Chesapeake Bay) to around 15 kt with gusts up to 20 kt. Winds will decrease Tuesday night and remain SE around 10 kt through Wednesday night.

A low pressure will be developing across the southeast state this week and is expected to track up to Atlantic coast. The exact track of the center of low pressure is still uncertain. However, winds will likely increase Thursday morning as the low pressure moves north across eastern NC and the pressure gradient tightens across the VA and NC coast. E to ENE winds will increase throughout the day on Thursday to 15-20 kt as the low pressure tracks along the VA/NC coast. As the low tracks northeast away our coastline on Friday, winds will turn NE to N and decrease.

On Tuesday and Wednesday, waves in the bay will remain around 1 ft and seas will be 1-2 ft. Waves and seas will increase Thursday as the low pressure tracks over the area. Waves in the bay (and lower James Rivers) are expected to be 2-3 ft and seas will increase to 4-6 ft.

TIDES/COASTAL FLOODING. As of 345 PM EDT Monday .

Will be issuing another Coastal Flood Statement for Bayside of the MD eastern shore for marginal/nuisance tidal flooding with the upcoming high tide later tonight/early Tue AM due to the persistent southerly flow.

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

SYNOPSIS . MPR NEAR TERM . AJZ/MPR SHORT TERM . MPR LONG TERM . MRD AVIATION . MPR MARINE . CP TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LWTV2 - 8635750 - Lewisetta, VA 21 mi50 min S 6 G 7 76°F 80°F1018 hPa
PPTM2 - 8578240 - Piney Point, MD 22 mi50 min SSE 7 G 9.9
NCDV2 29 mi56 min N 2.9 G 5.1 72°F 83°F1017.6 hPa
SLIM2 - 8577330 - Solomons Island, MD 35 mi50 min SSE 4.1 G 5.1 73°F 81°F1017.2 hPa
YRSV2 - Chesapeake Bay,VA 37 mi83 min Calm 76°F 1019 hPa73°F
44058 - Stingray Point, VA 41 mi32 min E 12 G 12 82°F1022 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 41 mi68 min WSW 8 G 11 1018.1 hPa (-1.7)
BISM2 - 8571421 - Bishops Head, MD 48 mi50 min S 9.9 G 12 76°F 81°F1017.3 hPa
44062 - Gooses Reef, MD 49 mi38 min WNW 18 G 19 76°F 80°F

Wind History for Lewisetta, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tappahannock-Essex County Airport, VA5 mi73 minN 010.00 miFair71°F70°F100%1018.6 hPa

Link to 5 minute data for KXSA

Wind History from XSA (wind in knots)
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Last 24hrS3S3S4S4S4S4CalmS6SW6S6S9
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1 day agoCalmCalmCalmCalmSW3S5S4E7SE3E4E6SE6SE3CalmCalmS3CalmCalmS3S3S4S3CalmS3
2 days agoCalmCalmCalmNW3N5N5N4N5N5N5NE5NE5NE5E5NE3CalmE3S3SE3CalmCalmCalmCalmCalm

Tide / Current Tables for Tappahannock, Rappahannock River, Virginia
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Tappahannock
Click for Map
Tue -- 03:48 AM EDT     2.03 feet High Tide
Tue -- 05:52 AM EDT     Sunrise
Tue -- 08:07 AM EDT     Moonset
Tue -- 10:53 AM EDT     -0.07 feet Low Tide
Tue -- 04:13 PM EDT     1.68 feet High Tide
Tue -- 08:32 PM EDT     Sunset
Tue -- 10:43 PM EDT     Moonrise
Tue -- 10:50 PM EDT     0.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.511.61.921.91.61.20.70.30-0.10.10.511.51.71.61.41.10.70.30.10

Tide / Current Tables for Wares Wharf, Rappahannock River, Virginia
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Wares Wharf
Click for Map
Tue -- 03:15 AM EDT     2.15 feet High Tide
Tue -- 05:52 AM EDT     Sunrise
Tue -- 08:07 AM EDT     Moonset
Tue -- 10:08 AM EDT     -0.07 feet Low Tide
Tue -- 03:40 PM EDT     1.78 feet High Tide
Tue -- 08:31 PM EDT     Sunset
Tue -- 10:05 PM EDT     0.00 feet Low Tide
Tue -- 10:43 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.51.92.12.11.81.40.90.40.1-0.100.40.91.41.71.81.61.30.80.40.100.1

Weather Map
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wmap_A
GEOS 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (5,6,7,8)
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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.