Monday, July13, 2020
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Marine Weather and Tides
Palmyra, 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 6:00AMSunset 8:38PM Monday July 13, 2020 10:01 AM EDT (14:01 UTC) Moonrise 12:08AMMoonset 1:07PM Illumination 43% Phase: Third Quarter Moon; Moon at 23 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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ANZ536 Tidal Potomac From Indian Head To Cobb Island- 739 Am Edt Mon Jul 13 2020
Today..NW winds 5 kt. Waves less than 1 ft. Scattered showers, mainly this morning.
Tonight..N winds around 5 kt. Waves 1 ft.
Tue..NW winds around 5 kt. Waves 1 ft.
Tue night..NE winds around 5 kt. Waves 1 ft or less.
Wed..SE winds around 5 kt. Waves 1 ft or less.
Wed night..SE winds 5 kt. Waves less than 1 ft.
Thu..S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Fri..SW 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 739 Am Edt Mon Jul 13 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A weak front along the atlantic seaboard will push offshore by tonight. High pressure will then build across the area Tuesday and Wednesday before moving offshore. A front may approach from the north late in the week.


7 Day Forecast for Marine Location Near Palmyra, VA
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location: 37.83, -78.33     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 131058 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 658 AM EDT Mon Jul 13 2020

SYNOPSIS. A weak cold front will meanders over the area today before pushing offshore this evening. Otherwise, high pressure will then rebuild and bring increasingly hot and humid conditions to the region through much of next week.

NEAR TERM /THROUGH TUESDAY/. As of 400 AM EDT Monday .

Shortwave trough and weak cold front is moving east across the Appalachian Mountains early this morning. The trough and attendant cold front will slowly track east towards the coast today. Chance of Pops remain around 30% for showers and thunderstorms Monday morning as the system moves across the VA Piedmont. Greatest chance for showers and thunderstorms will be across southeast VA and northeast NC (Pop ~60%) as the front moves into these area during the afternoon. SPC has placed these areas in a marginal risk for strong to severe storms. Main threat will be isolated damaging winds. High temperatures will be around 90. However, mid-90s are possible across Hampton Roads where there will be more daytime heating before showers and storms develop. Cold front will be moving off the coast this evening with clearing from NW to SE. It looks like most of the afternoon will be dry for areas along and west of I-95 and MD Eastern Shore.

There won't be a real airmass change behind the cold front. Low temperatures Monday night will range from the mid-60s in the Piedmont to mid-70s along the coast. Dew point won't drop overnight much either, expecting dew points in the 60s to around 70 still.

SHORT TERM /TUESDAY NIGHT THROUGH WEDNESDAY/. As of 430 AM EDT Monday .

A ridge aloft will build northeast in the southern Mid-Atlantic as the trough moves off the east coast. At the surface, high pressure will be located off the Northeast U.S. coast. This will keep us in an onshore flow through Wednesday. As a result, high temperatures along the coast were lowered for Tuesday and Wednesday where highs will be in the mid to upper 80s. However farther inland, highs will be able to climb into the low to mid 90s. Overnight low temperatures will be in the 70s. There will be only be a slight chance of afternoon showers and thunderstorms, mainly across the VA Piedmont, with the ridge aloft over the region.

LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/. As of 345 PM EDT Sunday .

Low pressure passes well to our N Thursday. The trailing cold front should stall well to our W. However, diurnal heating and subsequent instability will still provide a chance for a few showers/storms in the western piedmont Thurs afternoon. The cold front moves into the region Fri and becomes nearly stationary, resulting in an increased chance for showers/storms Fri afternoon. The front dissipates as it slowly meanders E Fri night into Sat. Diurnal heating/instability once again provides a chance for showers/storms Sat afternoon. A shortwave moves through Sunday and will provide a ample forcing for more widespread showers/storms. Highs in the low to mid 90s. Lows will range from the upper 60s to low 70s on Wed night and from the low to mid 70s Thurs, Fri, Sat, and Sun nights.

AVIATION /12Z MONDAY THROUGH FRIDAY/. As of 700 AM EDT Monday .

Mainly VFR through the period. Scattered showers/storms are moving across the area this morning. Additional convection is expected on Monday afternoon with the highest chances over the SE. VCTS entered at ORF/ECG/PHF. Brief flight restrictions possible if convection passes over or near a terminal. Winds will remain light and variable, except near thunderstorms.

OUTLOOK . VFR conditions persist through Mid Week with just a slight chance of a shower/storm both Tuesday and Wednesday.

MARINE. As of 400 AM EDT Monday .

A weak trough will slide off the coast early this morning, and then dissipate offshore. Meanwhile, high pressure will remain anchored well offshore. The wind will become W or NW 5-10kt across the nrn half of the marine in the wake of the trough, but remain SW 5-10kt across the srn half of the area. The wind will become sea- breeze dominant late morning through mid-aftn, and then become SW 5- 10kt this evening ahead of a cold front. There is a chc of tstms across the srn half of the area this aftn, which will be capable of producing strong wind gusts. The cold front is expected to push across the coast later tonight into early Tuesday. The wind shifts to NNW 10-15kt late tonight then shifting to NNE Tuesday morning. High pressure then builds N of the region Tuesday aftn into Wednesday with the wind shifting to NE then SE with speeds of 5- 10kt. High pressure slides offshore Thursday into Friday with the wind becoming southerly with speeds aob 15kt. Seas are generally 2- 3ft early this morning, with up to 4ft out near 20nm, and this is expected to continue today. Seas then range from 2-3ft through much of the forecast period, with 1-2ft waves in the Bay.

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

SYNOPSIS . MAM NEAR TERM . CP SHORT TERM . CP LONG TERM . RMM AVIATION . CMF/CP MARINE . AJZ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YRSV2 - Chesapeake Bay,VA 90 mi92 min SSW 1 71°F 1012 hPa69°F
PPTM2 - 8578240 - Piney Point, MD 98 mi44 min NW 8 G 8.9

Wind History for Piney Point, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charlottesville-Albemarle Airport, VA22 mi69 minN 010.00 miA Few Clouds75°F68°F79%1011.3 hPa
Louisa, Louisa County Airport/Freeman Field, VA22 mi67 minN 010.00 miFair74°F66°F78%1013.5 hPa

Link to 5 minute data for KCHO

Wind History from CHO (wind in knots)
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S9S74NE4NW4CalmNW4CalmNW4CalmCalmCalmW3CalmCalmCalmNW4CalmSW3
1 day ago65W76
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SW8SW7NW7NW756W3NW4CalmCalmCalmCalmCalmCalmCalmSW3SW3Calm3SW5
2 days ago4NE744S55S5S4Calm34SW6S7SW4SW43S3SW4SW3CalmSW3Calm35

Tide / Current Tables for Richmond (river locks), James River, Virginia
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Richmond (river locks)
Click for Map
Mon -- 01:04 AM EDT     Moonrise
Mon -- 05:59 AM EDT     Sunrise
Mon -- 06:27 AM EDT     0.80 feet Low Tide
Mon -- 11:43 AM EDT     3.12 feet High Tide
Mon -- 02:02 PM EDT     Moonset
Mon -- 06:16 PM EDT     0.54 feet Low Tide
Mon -- 08:31 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.432.51.91.410.80.91.32.12.733.12.92.31.71.10.70.50.61.122.83.3

Tide / Current Tables for Lower Rocketts, James River, Virginia
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Lower Rocketts
Click for Map
Mon -- 01:04 AM EDT     Moonrise
Mon -- 05:59 AM EDT     Sunrise
Mon -- 06:20 AM EDT     0.80 feet Low Tide
Mon -- 11:40 AM EDT     3.12 feet High Tide
Mon -- 02:02 PM EDT     Moonset
Mon -- 06:10 PM EDT     0.54 feet Low Tide
Mon -- 08:31 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.432.41.81.310.80.91.42.12.73.13.12.82.31.71.10.70.50.61.222.83.3

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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (10,2,3,4)
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Ground Weather Radar Station Wakefield, VA
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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 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.