Sunday, February23, 2020
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L-36.com


Marine Weather and Tides
Gwynn, 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 6:43AMSunset 5:54PM Sunday February 23, 2020 9:02 AM EST (14:02 UTC) Moonrise 7:04AMMoonset 5:57PM Illumination 0% Phase: New Moon; Moon at 29 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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ANZ631 Chesapeake Bay From Windmill Point To New Point Comfort Va- 704 Am Est Sun Feb 23 2020
Today..SW winds 5 to 10 kt, becoming S in the afternoon. Waves 1 foot.
Tonight..S winds 10 kt. Waves 1 foot.
Mon..S winds 10 kt. Waves 1 foot. A chance of showers in the afternoon.
Mon night..S winds 5 to 10 kt. Waves 1 to 2 ft. Showers.
Tue..S winds 10 kt. Waves 1 foot. Showers likely, mainly in the morning.
Tue night..S winds 5 to 10 kt. Waves 1 foot. A chance of showers.
Wed..SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Waves 2 to 3 ft. A chance of showers.
Wed night..SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Waves 2 to 3 ft. A chance of rain.
Thu..W winds 15 to 20 kt. Waves around 3 ft.
Thu night..W winds 15 to 20 kt. Waves around 3 ft.
ANZ600 704 Am Est Sun Feb 23 2020
Synopsis for fenwick island de to currituck beach light nc out 20 nautical miles including virginia portion of the chesapeake bay currituck sound and portions of the james, york, and rappahannock rivers.. High pressure will move offshore today through Monday. Low pressure will affect the area Monday night into Tuesday. A cold front will approach from the west Wednesday.


7 Day Forecast for Marine Location Near Gwynn, VA
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location: 37.56, -76.13     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 231113 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 613 AM EST Sun Feb 23 2020

SYNOPSIS. High pressure will remain over the area through tonight. The next system will impact the area late Monday and Tuesday.

NEAR TERM /THROUGH TONIGHT/. As of 345 AM EST Sunday .

The center of high pressure will shift east and offshore of the Carolinas today, with return flow from the S-SW helping to moderate temperatures further. It will be another sunny day other than some passing high clouds in the afternoon. Highs from the mid and upper 50s to low 60s. Mainly clear the first part of tonight then increasing/thickening high clouds from SW to NE after midnight. Lows in the mid to upper 30s.

SHORT TERM /MONDAY THROUGH TUESDAY/. As of 345 AM EST Sunday .

Low pressure moves across OK/AR/MO Monday morning then into the TN/OH Valleys Monday through early Tuesday. The system then stalls and strengthens over the Great Lakes late Tuesday into Wednesday. For the local area, this means a prolonged period of scattered showers from Monday afternoon through Wednesday. Will have highest PoPs Monday night into Tuesday morning (70-90%) as a warm front lifts north across the area, then chc PoPs later Tuesday into Tuesday night (30-50%). PoPs then ramp back up again on Wednesday (50-70%), especially in the afternoon, as the Great Lakes low forces a cold front toward the local area late. That being said, total precipitation amounts through Tuesday night appear to be light with total QPFs of only 0.25-0.50". Generally light QPF amounts expected even into Wednesday with the fropa.

High temperatures are expected to be relatively mild and will range from the mid-upper 50s on Monday, mid-upr 50s N to the mid-60s S on Tuesday, and low 60s N to the upper 60s S on Wednesday. Low temps will be mild Mon-Tue nights, ranging in the 40s on Monday night to the mid-40s N to the mid-50s S Tuesday night.

LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/. As of 245 PM EST Saturday .

Medium range period begins with surface low pressure sliding north of the local area Wednesday night, with the trailing sfc cold front crossing the area. Rain chances quickly get scoured out into Thu morning with post-frontal CAA. Becoming breezy across the region on Thursday, as pressure gradient tightens between the deepening surface low over New England and high pressure building east over the southern plains/Gulf coast region.

Temperatures begin on a mild note to begin the period, only to settle back near or below normal for the late week period into next weekend. Probabilistic models and ensembles each seem to favor persistent upper troughing over the east, with a developing upper ridge over the western CONUS. Expect temperatures to drop off sharply, settling near or below normal for Thu-Sun.

Low temps Wed night will range from the mid 30s in the NW to the low 40s in the SE. Low temps on Thurs night will range from the mid-20s in the NW and low 30s in the SE. Low temps on Fri/Sat nights will be the coldest, with lows each night ranging from the low 20s in the NW to the low 30s in the SE. High temps Thu will range from the upper 40s in the NW to the mid- 50s in the SE, before maxima drop to 40-45 in the NW . 45-50 in the SE both Fri and Sat.

AVIATION /11Z SUNDAY THROUGH THURSDAY/. As of 610 AM EST Sunday .

VFR conditions across area terminals will persist through the 12z TAF period. A clear sky this morning with winds light SW or light/variable. Winds will pick up to about 7-10kt this afternoon with just a few high clouds. Light S winds tonight with increasing high clouds into Monday morning.

OUTLOOK . High pressure will slide off the coast Mon AM. VFR conditions persist through Monday morning on SSW winds 5-10 kt. Increasing chances for rain showers, as well as thickening/lowering clouds Monday aftn into Monday night. Sub- VFR CIGs/VSBYs will be possible late Mon aftn through Wed morning, as a warm front lifts across the region, with a pair of trailing cold fronts crossing the area later Tuesday though Wednesday aftn. Periods of rain/patchy fog can be expected during this time frame . with VFR conditions returning for the latter half of the week.

MARINE. As of 345 AM EST Sunday .

High pressure is centered from GA to the NC coast early this morning. The wind is SW 6-12kt with seas generally ~3ft and near 4ft out near 20nm. High pressure slides offshore today into tonight. The wind will become S today, then SW tonight with speeds generally 5-8kt S and 8-12kt N. Seas will subside to 2-3ft today into tonight. Low pressure tracks ENE through the mid-Mississippi Valley and into the Ohio Valley Monday into Monday night, then NE to the Great Lakes Tuesday. The wind is expected to be SSW 5-10kt S to 10-15kt Monday, then S to SSE 8-12kt Monday night into Tuesday. Seas are forecast to remain 2-3ft. Weak low pressure crosses the area Tuesday night, then a strong cold front crosses the coast Wednesday aftn and evening. The wind will shift to W behind the cold front and this will bring the next chc of SCA conditions. A cold upper trough will push over the east coast Thursday/Friday, with periodic SCA conditions expected with CAA.

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

SYNOPSIS . JDM NEAR TERM . JDM SHORT TERM . JDM LONG TERM . MAM AVIATION . JDM MARINE . AJZ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RPLV2 - 8632837 - Rappahannock Light, VA 6 mi45 min W 4.1 G 5.1 1027 hPa
44058 - Stingray Point, VA 7 mi33 min W 3.9 G 5.8 44°F1029.3 hPa
YKRV2 - 8637611 - York River East Rear Range Light, VA 24 mi45 min NNW 1.9 G 4.1 40°F 1026.7 hPa
WAHV2 - 8631044 - Wachapreague, VA 24 mi45 min Calm G 1 1026 hPa
44072 26 mi33 min NNW 3.9 G 3.9 40°F
KPTV2 - 8632200 - Kiptopeke, VA 28 mi51 min W 6 G 7 44°F
YKTV2 - 8637689 - Yorktown, VA 30 mi51 min WNW 2.9 G 5.1 39°F 45°F1025.8 hPa
YRSV2 - Chesapeake Bay,VA 32 mi33 min W 1.9 33°F 1027 hPa28°F
44042 - Potomac, MD 34 mi27 min S 18 G 29 38°F 42°F1026.1 hPa
LWTV2 - 8635750 - Lewisetta, VA 35 mi51 min SW 2.9 G 4.1 37°F 43°F1026 hPa
CHBV2 37 mi51 min WSW 8 G 8.9 1024.9 hPa
44087 37 mi33 min 44°F2 ft
44064 39 mi33 min W 5.8 G 7.8 1025.9 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 41 mi51 min SW 8 G 9.9 38°F 1025.6 hPa
DOMV2 - 8638511 - Dominion Terminal Association, VA 44 mi45 min WSW 2.9 G 6 40°F 1026.5 hPa
CHYV2 - 8638999 - Cape Henry, VA 44 mi45 min SW 8.9 G 11 40°F 1026.1 hPa
SWPV2 - 8638610 - Sewells Point, VA 44 mi51 min 45°F1026 hPa
PPTM2 - 8578240 - Piney Point, MD 45 mi51 min SSE 1 G 1.9
BISM2 - 8571421 - Bishops Head, MD 46 mi45 min WSW 1.9 G 1.9 1025.8 hPa
CRYV2 - 8638595 - South Craney Island, VA 48 mi45 min SSW 4.1 G 5.1 39°F 1026 hPa

Wind History for Rappahannock Light, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Melfa / Accomack Airport, VA20 mi68 minN 010.00 miFair32°F29°F93%1026.1 hPa

Link to 5 minute data for KMFV

Wind History from MFV (wind in knots)
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Last 24hrW8W9SW6SW5SW4SW7W7SW5SW6CalmS6S8SW5SW4SW5SW6SW4SW5SW4S3S4CalmCalmW3
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N7NW9NW4N4CalmCalmCalmCalmCalmCalmCalmCalmCalmW3W4W3W6
2 days agoNE4E6NE6N4NE4N5N4N6NE5--NE3N3N4NE5N4N4N6N7N8N9N6N6N8NE11
G14

Tide / Current Tables for Windmill Point Light, Chesapeake Bay, Virginia
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Windmill Point Light
Click for Map
Sun -- 04:54 AM EST     -0.08 feet Low Tide
Sun -- 06:45 AM EST     Sunrise
Sun -- 07:04 AM EST     Moonrise
Sun -- 10:33 AM EST     New Moon
Sun -- 10:57 AM EST     1.09 feet High Tide
Sun -- 05:31 PM EST     -0.04 feet Low Tide
Sun -- 05:52 PM EST     Sunset
Sun -- 05:57 PM EST     Moonset
Sun -- 11:11 PM EST     0.98 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.60.40.1-0-0.100.20.50.811.110.80.60.30.1-0-00.10.40.70.91

Tide / Current Tables for Windmill Point, Rappahannock River, Virginia
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Windmill Point
Click for Map
Sun -- 04:52 AM EST     -0.20 feet Low Tide
Sun -- 06:45 AM EST     Sunrise
Sun -- 07:04 AM EST     Moonrise
Sun -- 10:33 AM EST     New Moon
Sun -- 10:53 AM EST     1.07 feet High Tide
Sun -- 05:26 PM EST     -0.23 feet Low Tide
Sun -- 05:52 PM EST     Sunset
Sun -- 05:57 PM EST     Moonset
Sun -- 11:14 PM EST     0.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.50.30-0.1-0.2-0.10.20.50.811.110.80.50.2-0.1-0.2-0.2-00.30.60.80.9

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 (9,2,3,4)
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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.