Thursday, September23, 2021
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Marine Weather and Tides
Matoaca, 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 6:57AMSunset 7:06PM Thursday September 23, 2021 11:18 PM EDT (03:18 UTC) Moonrise 7:42PMMoonset 8:23AM Illumination 92% 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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ANZ637 James River From Jamestown To The James River Bridge- 1014 Pm Edt Thu Sep 23 2021
Overnight..NW winds 5 kt, becoming N 10 to 15 kt. Waves less than 1 foot and light chop.
Fri..N winds 10 to 15 kt. Waves 1 to 2 ft.
Fri night..N winds 5 to 10 kt. Waves less than 1 foot and light chop.
Sat..N winds 5 to 10 kt. Waves less than 1 foot and light chop.
Sat night..W winds 5 to 10 kt. Waves less than 1 foot and light chop.
Sun..NW winds 5 to 10 kt. Waves less than 1 foot and light chop.
Sun night..NW winds 5 to 10 kt. Waves less than 1 foot and light chop.
Mon..W winds 5 to 10 kt. Waves less than 1 foot and light chop.
Mon night..SW winds 5 to 10 kt. Waves less than 1 foot and light chop.
ANZ600 1014 Pm Edt Thu Sep 23 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.. A cold front will move to the southeast of the local waters by Friday morning. Canadian high pressure builds in this weekend.


7 Day Forecast for Marine Location Near Matoaca, VA
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location: 37.22, -77.53     debug


Area Discussion for - Wakefield, VA
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FXUS61 KAKQ 240218 AFDAKQ

AREA FORECAST DISCUSSION National Weather Service Wakefield VA 1018 PM EDT Thu Sep 23 2021

SYNOPSIS. A cold front will gradually push off the coast early this evening. Cool high pressure builds in from the west Friday into Saturday. A dry cold front crosses the area Saturday night, with high pressure returning Sunday and Monday.

NEAR TERM /THROUGH FRIDAY/. As of 1005 PM EDT Thursday .

The latest analysis indicates strong sfc low pressure occluded over Lake Huron, with a sfc cold front now located just off the immediate coast and expected to gradually move east overnight. Meanwhile, a post-frontal boundary is nearly stationary in eastern Virginia and marks the edge of the cloud shield. Temps as of 1000 PM ranged from the mid 50s NW to the upper 60s SE.

Clouds and some light showers/drizzle will linger into the evening near the coast and across the Eastern Shore through tonight, but otherwise clear and cool conditions will prevail inland. Post- frontal CAA brings cool lows in the mid-upper 40s/near 50F in the Piedmont under a clear sky. It will remain much warmer closer to the coast due to clouds and better mixing, with lows generally 60-65F.

Mostly sunny Fri other than some morning clouds near the coast (as the front and a trough of low pressure lingers offshore). A northerly wind of 5-10 mph is expected inland, with 10-15 mph at the coast. Highs will be mainly in the mid 70s CWA- wide as sfc high pressure expand NE into the local area from the Tn Valley.

SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/. As of 330 PM EDT Thursday .

Clear/cool Fri night as sfc high pressure settles over the local area. Have continued to go on cool side of guidance for most areas given a dry airmass and sfc high pressure over the region. Expect lows in the mid/upper 40s to lower 50s across the inland 2/3 of the CWA (low- mid 50s urban areas). Near the coast lows will be 55-60F. Mostly sunny and pleasant Sat with highs in the mid to upper 70s. A bit more in the way of clouds as the next shortwave aloft moves across at least northern sections of the CWA Sat night. Lows mainly in the 50s. This pushes a reinforcing but dry cold front through the area by Sun morning. Mostly sunny on Sunday with highs in the mid to upper 70s

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. As of 300 PM EDT Thursday .

The extended continues to look fairly quiet and seasonable. Early next week, the models are in good agreement in showing a trough across the east and ridging to the west. By the end of the week, the pattern across North America becomes very blocky with a 2-3 sigma ridge extending northward into central Canada and a upper low over/near the east coast. Exact placement of this upper low will be critical in the precip and temperature forecast for Thu/Friday. The 12z GFS is significantly different from the previous run and shows the upper low moving southward along the east coast. Meanwhile, the ECMWF shows the upper low further west and becoming cut off from the main flow over the Ohio Valley by the end of the week. With all of this said, will continue with the warmest temps of the week on Tuesday and Wednesday ahead of a weak cold front. Lower to mid 80s expected. Temperature forecast becomes a little more problematic for Thu depending on the exact placement of the upper low. Will cool off temps back to mid-upper 70s for now, but I could certainly see cooler temps if the upper low is further east. Overall most of the area will stay dry next week, although there is a small chance for rain ahead of a weak cold front Tue night.

AVIATION /02Z FRIDAY THROUGH TUESDAY/. As of 740 PM EDT Thursday .

A cold front moved through earlier this afternoon with lingering showers behind the front and ahead of a weak boundary. Primarily VFR CIGs except borderline MVFR CIGs at ECG (3000-3100 ft) this evening. Prevailing VFR CIGs are expected with occasional drops to MVFR at ECG/ORF/SBY through tonight. Expect the post-frontal boundary with cloud cover and light showers/drizzle to gradually drift east tonight into Friday. Behind the boundary, clear skies will prevail. Winds are generally NW/N (<5 kt) and will become NNW/N 5-10 kt late tonight/early Friday morning. Winds on Fri will be N 5-10kt (except 10-15kt through ~18-20Z near the coast). Mainly sunny, though partly cloudy/variably cloudy at the coast with clearing expected to continue to push east through the day.

Outlook: Dry with VFR conditions are to persist over the weekend and through Mon/Tue as high pressure builds into the area and then slides offshore.

MARINE. As of 1015 PM EDT Thursday .

A well defined area of low pressure at the surface and aloft is located over the Great Lakes/Michigan this afternoon. Its trailing cold front has just about crossed the waters, with winds now NW at 5- 15 kt. Seas are still 5-7 ft, and did approach 8 ft off the VA/MD coast earlier. Have dropped the SCAs for the rivers and Currituck Sound. Winds will generally be NW at 5-15 kt through the first part of tonight. A secondary CAA surge arrives from the NNW during the latter part of the night . and winds become NNW with speeds increasing to 15-20 kt on the bay/ocean as cooler/drier air arrives (wind speeds are expected to be slightly less on the rivers). Have extended the SCAs for the Ches Bay until 14-17z Fri, and SCA flags have been added to the Currituck Sound from 09z tonight through 20z Friday afternoon. In addition, seas will likely remain elevated through much of Fri, so have extended the SCAs for the ocean until 17-20z for now (these may need to be extended further for the srn coastal waters). Seas will diminish to ~5 ft by late tonight, but will remain 4-5 ft through much of Fri (especially south) thanks to the increasing NNW winds.

Sub-SCA conditions are expected from Fri evening through at least Sat evening as high pressure builds into the area. Could see a brief uptick in NW winds (to near 15 kt) Sat night-Sun AM as a second cold front crosses the waters. Sub-SCA conditions are expected early next week. Seas will diminish to 3-4 ft Saturday and 2-3 ft Sunday into next week.

TIDES/COASTAL FLOODING. As of 1015 PM EDT Thursday .

Tidal anomalies continue to fall this evening as high tide has passed and a robust ebb tide has developed. All Coastal Flood hazards have expired. With the increasing NNW winds overnight, no additional coastal flooding is expected after this evening's high tide.

A moderate rip current risk is forecast for Friday.

AKQ WATCHES/WARNINGS/ADVISORIES. MD . None. NC . None. VA . None. MARINE . Small Craft Advisory until 1 PM EDT Friday for ANZ632-634-650- 652-654. Small Craft Advisory from 4 AM to 4 PM EDT Friday for ANZ633. Small Craft Advisory until 10 AM EDT Friday for ANZ630-631. Small Craft Advisory until 4 PM EDT Friday for ANZ656-658.

SYNOPSIS . LKB NEAR TERM . LKB/RMM SHORT TERM . LKB/MAM LONG TERM . MRD AVIATION . LKB/RMM MARINE . ERI/AJZ TIDES/COASTAL FLOODING . AKQ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YRSV2 - Chesapeake Bay,VA 45 mi49 min WSW 1 63°F 1016 hPa62°F
YKTV2 - 8637689 - Yorktown, VA 56 mi49 min W 5.1 G 7 68°F 78°F1014.5 hPa

Wind History for Yorktown USCG Training Center, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Petersburg, Dinwiddie County Airport, VA2 mi24 minWNW 310.00 miFair59°F55°F86%1016.6 hPa
Chesterfield County Airport, VA13 mi23 minWNW 710.00 miFair57°F55°F93%1017.5 hPa
Richmond, Richmond International Airport, VA23 mi25 minN 810.00 miPartly Cloudy63°F55°F76%1016.6 hPa

Link to 5 minute data for KPTB

Wind History from PTB (wind in knots)
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Tide / Current Tables for Petersburg, Appomattox River, James River, Virginia
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Petersburg
Click for Map
Thu -- 01:17 AM EDT     0.29 feet Low Tide
Thu -- 06:17 AM EDT     3.31 feet High Tide
Thu -- 06:58 AM EDT     Sunrise
Thu -- 09:23 AM EDT     Moonset
Thu -- 01:21 PM EDT     0.30 feet Low Tide
Thu -- 06:33 PM EDT     3.52 feet High Tide
Thu -- 07:04 PM EDT     Sunset
Thu -- 08:40 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.30.41.22.22.93.33.22.82.11.510.60.30.41.12.133.43.53.12.61.91.4

Tide / Current Tables for Chester, James River, Virginia
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Chester
Click for Map
Thu -- 01:18 AM EDT     0.22 feet Low Tide
Thu -- 06:30 AM EDT     3.22 feet High Tide
Thu -- 06:58 AM EDT     Sunrise
Thu -- 09:23 AM EDT     Moonset
Thu -- 01:22 PM EDT     0.23 feet Low Tide
Thu -- 06:46 PM EDT     3.42 feet High Tide
Thu -- 07:04 PM EDT     Sunset
Thu -- 08:40 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.20.4122.73.23.22.82.11.50.90.50.30.30.91.92.83.33.43.12.61.91.3

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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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