Thursday, July29, 2021
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Marine Weather and Tides
Gwynn, VA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:07AMSunset 8:16PM Thursday July 29, 2021 9:04 PM EDT (01:04 UTC) Moonrise 10:44PMMoonset 10:44AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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- 715 Pm Edt Thu Jul 29 2021
.small craft advisory in effect until 7 am edt Friday...
Tonight..S winds 10 to 15 kt, becoming sw 15 to 20 kt late this evening and overnight. Waves 2 to 3 ft. Scattered tstms this evening. A chance of showers. A chance of tstms after midnight.
Fri..W winds 10 to 15 kt, becoming N in the afternoon. Waves 1 to 2 ft. A chance of showers and tstms early in the morning.
Fri night..N winds 10 to 15 kt. Waves 1 to 2 ft.
Sat..NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Waves 1 to 2 ft.
Sat night..SE winds 5 to 10 kt. Waves 1 foot.
Sun..S winds 10 kt. Waves 1 to 2 ft. Showers likely, mainly in the morning.
Sun night..S winds 10 kt, becoming nw after midnight. Waves 1 to 2 ft. A chance of showers.
Mon..N winds 5 to 10 kt. Waves 1 to 2 ft.
Mon night..E winds 5 to 10 kt. Waves 1 foot. A chance of showers.
Tue..E winds 5 to 10 kt. Waves 1 foot. A chance of showers.
Tue night..SE winds 5 to 10 kt. Waves 1 foot. A chance of showers. Winds and waves higher in and near tstms.
ANZ600 715 Pm Edt Thu Jul 29 2021
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.. Low pressure will track well north of the region later tonight. The trailing cold front will cross the area Friday morning, then stall across the carolinas through the weekend.


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 292346 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 746 PM EDT Thu Jul 29 2021

SYNOPSIS. Low pressure will track by north of the local area tonight to be followed by its trailing cold front during Fri. The front stalls across the Carolinas by Saturday. Low pressure moves east along the front Sunday.

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/. As of 745 PM EDT Thursday .

Isolated supercell continues to drop SSE east of the Richmond metro. This long-lived cell has a history of wind damage and has shown impressive hail signatures on radar. If the cell can manage to hold together it could impact the Williamsburg area and areas to the south and southeast. The environment across the region remains supportive of strong to severe storms but will little forcing to trigger any new convection. Severe Thunderstorm Watch 402 is in effect until 9pm.

Additional showers with a chance of thunder could impact the NE portion of the area including the MD eastern shore and Northern Neck after midnight tonight. Lows tonight in the low 70s N to the mid and upper 70s S.

SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/. As of 310 PM EDT Thursday .

The cold front progresses into/through srn/SE portions of the FA Fri Right now. SPC has MRGL along/S of the Albemarle Sound . still will carry 20-30% far srn/SE VA across NE NC before the frontal passage. Will be another hot/humid day (heat indices topping out around 100F one last day in this stretch) across srn/SE VA and NE NC (pre-frontal passage) while drying/lowering dew points occurs over central/nrn portions. Highs in the u80s-l90s.

Any lingering SHRAs/tstms Fri evening likely to diminish/end early. Period of NNE winds (gusty at the coast) and cold/dry air advection Fri night into Sat ends the recent period of high humidity heading into the weekend. Low Fri night in the l60s N to around 70F far SE.

The front stalls across the Carolinas by Sat. Expecting mostly sunny conditions N and partly sunny S and very comfy for the last day of July Highs in the l80s. u70s right along the coast/beaches.

This time of year . hard to keep the dry/cooler wx here. Hi pres shifts off the SE coast of New England Sat night leading to a quick return of moisture from the SSW. A series of lo pres systems forecast to moves along the stalled front (across NC). Increasing PoPs to 50-70% (mainly SHRAs) for late Sat night into Sun afternoon along w/ widespread clouds. Lows Sat night mainly in the m-u60s. Highs Sun in the 70s to l80s.

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. As of 100 PM EDT Thursday .

Unsettled wx conditions expected early/mid next week as trough aloft amplifies through Great Lakes and OH/TN Valleys. Initially a frontal boundary is forecast to push just offshore Sun night/Mon then due to the trough digging in to the W of the FA . the front would likely back WNW into the local area through mid week. The overall pattern setting up is fairly typical for mid Summer (and fits an MJO forecast of a transition from phase 6 to phases 8 and 1 - favoring BLO normal temps and near-ABV normal pcpn) and usually leads to a few/several days of high potential for SHRAs/tstms and psbl heavy rainfall. Have capped PoPs at 50% through the period.

Nighttime lows through the period mainly from the m60s to around 70F. Highs Mon 80-85F. Highs Tue in the l80s. Highs Wed and Thu in the l-m80s.

AVIATION /00Z FRIDAY THROUGH TUESDAY/. As of 745 PM EDT Thursday .

Will show prevailing VFR at all sites through the 00z TAF period. One exception could be PHF where a long-lived supercell continues to drop SSE toward the terminal. Current trajectory would keep the core of the cell a bit to the west of PHF. Will include VCTS at PHF and VCSH at ORF for lingering precip this evening. Elsewhere, mostly dry tonight with SCT/BKN mid level cloud debris. A few showers or storms could impact SBY after midnight so have included VCSH for this period. SW winds 10-15 kt become NW 5-10 by mid morning Friday behind a weak cold front. Additional storms are possible at ECG once heating gets underway on Friday. Confidence in coverage and placement is too low to include in the forecast at this time.

Generally VFR Fri night/Sat though NNE winds become gusty near the coast. Lo pres tracking across NC Sun may result in IFR/MVFR conditions and psbl SHRAs.

MARINE. As of 320 PM EDT Thursday .

A cold front moves over the local waters late tonight into Friday. Ahead of the front, winds are S/SW 10-15 kt, becoming SW 15-20 kt late this evening into tonight. A Small Craft Advisory remains in effect for the Chesapeake Bay, Lower James, and Currituck Sound from 8 PM through most of the night. As the cold front moves through late tonight through Fri morning, winds shift to NW/N 10-15 kt, remaining N 10-15 kt through Fri night. Winds may approach SCA criteria with the CAA surge late Fri night into early Sat, but for now, expect winds to remain around 15 kt. Winds switch from NE 5-10 kt to SE Sat into Sat night, remaining SE 10-15 kt through Sun. Another cold front comes through Sun night with winds shifting back to N Mon.

Waves of 1-2 ft and seas of 2-3 ft build to 2-3 ft and 3-4 ft respectively overnight before subsiding back to 1-2 ft and 2-3 ft by Fri afternoon through early next week. Seas may approach or briefly touch 5 ft tonight, but confidence is too low to issue a SCA at this time.

Moderate rips expected Sat.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . Small Craft Advisory until 7 AM EDT Friday for ANZ631>634-638. Small Craft Advisory until 4 AM EDT Friday for ANZ630.

SYNOPSIS . MPR NEAR TERM . RHR SHORT TERM . ALB LONG TERM . ALB AVIATION . RHR MARINE . RMM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RPLV2 - 8632837 - Rappahannock Light, VA 6 mi46 min SSW 13 G 14 1011 hPa
44058 - Stingray Point, VA 7 mi34 min WSW 9.7 G 14 82°F 83°F1 ft1011.3 hPa
YKRV2 - 8637611 - York River East Rear Range Light, VA 24 mi46 min SW 15 G 16 85°F
WAHV2 - 8631044 - Wachapreague, VA 24 mi46 min SW 6 G 8.9 80°F 86°F1010.6 hPa
44072 26 mi34 min SW 12 G 12 83°F 82°F2 ft
KPTV2 - 8632200 - Kiptopeke, VA 28 mi46 min SW 12 G 14 76°F
YKTV2 - 8637689 - Yorktown, VA 30 mi46 min SW 8 G 11 85°F 83°F1010.6 hPa
LWTV2 - 8635750 - Lewisetta, VA 35 mi46 min WSW 8 G 9.9 82°F 83°F1010.2 hPa
44087 37 mi38 min 82°F1 ft
CHBV2 37 mi46 min SW 9.9 G 16 86°F 1010.4 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 41 mi46 min SW 15 G 18 85°F 1011.1 hPa
44041 - Jamestown, VA 42 mi34 min NNW 7.8 G 9.7 83°F 1011.7 hPa
SWPV2 - 8638610 - Sewells Point, VA 44 mi46 min 82°F1011.5 hPa
CHYV2 - 8638999 - Cape Henry, VA 44 mi46 min S 5.1 G 8.9 85°F 1011.7 hPa
DOMV2 - 8638511 - Dominion Terminal Association, VA 44 mi46 min SW 8.9 G 11 85°F 1011.7 hPa
PPTM2 - 8578240 - Piney Point, MD 45 mi46 min WSW 5.1 G 8.9
44089 45 mi38 min 74°F3 ft
BISM2 - 8571421 - Bishops Head, MD 46 mi52 min SW 15 G 16 84°F 84°F1009.7 hPa
CRYV2 - 8638595 - South Craney Island, VA 48 mi46 min SSW 6 G 9.9 87°F 1011.5 hPa

Wind History for Rappahannock Light, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Melfa / Accomack Airport, VA20 mi1.8 hrsS 610.00 miLight Rain80°F75°F85%1011.2 hPa

Link to 5 minute data for KMFV

Wind History from MFV (wind in knots)
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Last 24hrE5--E3Calm----E4CalmCalmSE4--S3--SE7S6S11
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1 day agoS3S4S3S3--Calm--Calm--W3W3W3N4N5N4--E4--SW5SE4SE4SE4--Calm
2 days agoSW8--NW3----W3--CalmW3SW3W5W7------S3----SE6S6S6--S6--

Tide / Current Tables for Windmill Point Light, Chesapeake Bay, Virginia
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Windmill Point Light
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Thu -- 03:22 AM EDT     1.06 feet High Tide
Thu -- 06:06 AM EDT     Sunrise
Thu -- 09:54 AM EDT     0.07 feet Low Tide
Thu -- 11:45 AM EDT     Moonset
Thu -- 03:53 PM EDT     1.10 feet High Tide
Thu -- 08:15 PM EDT     Sunset
Thu -- 10:28 PM EDT     0.16 feet Low Tide
Thu -- 11:43 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.70.91.110.90.70.50.30.10.10.20.40.60.911.110.90.70.50.30.20.2

Tide / Current Tables for Windmill Point, Rappahannock River, Virginia
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Windmill Point
Click for Map
Thu -- 03:21 AM EDT     1.43 feet High Tide
Thu -- 06:06 AM EDT     Sunrise
Thu -- 10:02 AM EDT     0.32 feet Low Tide
Thu -- 11:45 AM EDT     Moonset
Thu -- 03:55 PM EDT     1.43 feet High Tide
Thu -- 08:16 PM EDT     Sunset
Thu -- 10:32 PM EDT     0.42 feet Low Tide
Thu -- 11:43 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.11.31.41.41.310.80.60.40.30.40.60.91.21.41.41.41.210.70.50.40.4

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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