Saturday, March23, 2019 L-36.com


Marine Weather and Tides
Gwynn, VA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:03AMSunset 7:20PM Saturday March 23, 2019 4:26 PM EDT (20:26 UTC) Moonrise 9:30PMMoonset 7:56AM Illumination 92% Phase: Waning Gibbous; Moon at 18 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- 401 Pm Edt Sat Mar 23 2019
Through 7 pm..NW winds 15 kt. Waves around 2 ft.
Tonight..NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves 1 to 2 ft.
Sun..W winds 5 kt, becoming S in the afternoon. Waves 1 foot.
Sun night..SW winds 10 to 15 kt. Waves 1 to 2 ft.
Mon..SW winds 10 to 15 kt, diminishing to 5 to 10 kt early in the afternoon, then becoming W late. Waves around 2 ft. Rain likely in the afternoon.
Mon night..N winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Waves 2 to 3 ft. Rain likely.
Tue..NE winds 20 kt. Waves 3 to 4 ft. A chance of rain in the morning.
Tue night..NE winds 15 to 20 kt. Waves 2 to 3 ft.
Wed..NE winds 10 to 15 kt. Waves around 2 ft.
Wed night..NE winds 10 to 15 kt. Waves around 2 ft.
ANZ600 401 Pm Edt Sat Mar 23 2019
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 build over the area for the weekend. Low pressure approaches from the west Monday, with a cold front crossing the area Monday night.


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 231940
afdakq
area forecast discussion
national weather service wakefield va
340 pm edt Sat mar 23 2019

Synopsis
High pressure will be over the area for the weekend. Low
pressure approaches from the west Monday, with a trailing cold
front crossing the area Monday night. Cool high pressure builds
across the area from the north on Tuesday and Wednesday.

Near term until 6 am Sunday morning
As of 245 pm edt Saturday...

high pressure building into the region will keep sensible weather
quiet tonight under clear skies. Very good mixing today have yielded
dew points in the single digits across the piedmont and teens
elsewhere. As the high moves overhead expect winds to diminish
tonight, and combined with the low dew points and clear skies, temps
should drop into the upper 20, except low-mid 30s closer to the
coast and in the metro areas.

Short term 6 am Sunday morning through Tuesday
As of 245 pm edt Saturday...

another quiet day on Sunday, although the high will shift offshore
in response to the next system moving eastward from the great lakes.

With SW flow developing and rising heights, expect highs to warm
well into the 60s and approaching 70 despite some high clouds moving
in late. Another day of strong mixing so it will be another day with
low relative humidities as low as 20 pct across the piedmont.

The surface cold front approaches the area later Sunday night and
passes through the region late Monday into Monday evening.

Meanwhile, a surface low forms along the front in the tn valley
Monday morning. Isentropic lift WAA associated with this low
will allow for pcpn to spread into the area mainly Monday
afternoon, but the strong push from the north should allow the
front to quickly pass through the area by Monday evening, with
the rain also quickly ending across the north Monday evening.

With the front stalling out initially Monday night as the low
moves along it, will need to maintain pops through the night
across the south with the best chances Mon evening. Will go with
likely pops Monday afternoon across much of the area expect the
se where chance pops will be maintained. Likely pops Monday
evening south, but drying out from N to S overnight as the high
builds southward. Another fairly mild day ahead of the front
Monday despite clouds and increasing chances for rain, with
temps in the 60s.

Areas near the coast will also become a little windy Monday night
with the low to the south and the strong high to the north yielding
a tight pres gradient. Could not rule out some gusts to 30-35 mph
Monday night especially close to the coast in n-nw flow.

Tuesday looks to be generally dry with the high building to the
north of the area. However, it will be quiet chilly despite partly-
mostly sunny skies with highs generally in the upper 40s in n-ne
flow.

Long term Tuesday night through Saturday
As of 245 pm edt Saturday...

the extended looks quiet as canadian high pressure will build
across much of the eastern 1 3 of the country Wednesday-Friday.

With the continued trough over the east coast, it will start out
cool Wednesday with highs only in the low 50s. However, this
trough will gradually shift offshore by the end of the week as
the next deep trough develops over the plains. This will allow
for broad southwesterly flow to develop by Friday Saturday
yielding above normal temps in the upper 60s to mid 70s. Will
keep a dry forecast through Saturday, although it should be
noted that the GFS is a little faster with the system next
weekend compared to the gem and ecmwf.

Aviation 20z Saturday through Thursday
As of 130 pm edt Saturday...

vfr conditions expected through Sunday with high pressure in
control. Gusty w-nw winds will continue this afternoon with some
gusts of 25kt especially at ric and sby. Winds decrease to less
than 5 kt this evening as the high builds overhead. Winds turn
sw on Sunday.

Outlook:
low pressure along with a strong trailing cold front approaches
from the NW Monday, and crosses the area Monday aftn and night,
with high pressure building in from the N Tuesday. There is a
likelihood for degraded flight conditions Monday night into the
day on Tuesday, withVFR returning later Tue through the middle
of next week.

Marine
As of 340 pm edt Saturday...

winds waves seas will continue to trend downward through the
late afternoon and early evening so that all scas can be dropped
at 4 pm (except north of parramore island where scas will
continue thru 6 pm). Will issue an mws for lingering gusts
around 20 kt through 5-6 pm for the rivers and bay.

Generally expecting quiet marine conditions tonight and Sunday as
northwesterly winds veer around to southwesterly ahead of the next
area of low pressure approaching from the west. Winds become
southwest 10-15 knots Monday morning before a strong cold front
crosses the waters Monday afternoon and early evening, turning
winds to the nne. Strong north and northeast flow will follow
the frontal passage with scas likely Monday night and Tuesday
and probably lingering into Wednesday. Confidence is also
increasing for gale conditions on Tuesday from parramore island
south, including the mouth of the bay and currituck sound. Seas
will build considerably (5-7 feet N and 7-10 feet s) with stout
ne winds on Tuesday.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 4 pm edt this afternoon for
anz630>632-634-654-656-658.

Small craft advisory until 7 pm edt this evening for anz650-
652.

Synopsis... Mam mrd
near term... Mrd
short term... Mrd
long term... Mrd
aviation... Mrd
marine... Jdm


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RPLV2 - 8632837 - Rappahannock Light, VA 6 mi38 min 1020.6 hPa
44058 - Stingray Point, VA 7 mi32 min NNW 14 G 18 52°F 48°F1018.2 hPa
YKRV2 - 8637611 - York River East Rear Range Light, VA 24 mi38 min 55°F 1020.4 hPa
WAHV2 - 8631044 - Wachapreague, VA 24 mi38 min 52°F 52°F1019 hPa
44072 26 mi36 min 53°F
KPTV2 - 8632200 - Kiptopeke, VA 28 mi44 min 49°F
YKTV2 - 8637689 - Yorktown, VA 30 mi38 min 55°F 49°F1019.5 hPa
YRSV2 - Chesapeake Bay,VA 32 mi56 min NW 5.1 58°F 1021 hPa22°F
44042 - Potomac, MD 34 mi32 min WNW 18 G 21 48°F 46°F1020.8 hPa
LWTV2 - 8635750 - Lewisetta, VA 35 mi44 min 52°F 48°F1020.2 hPa
CHBV2 37 mi44 min 52°F 1018.8 hPa
44087 37 mi56 min 48°F2 ft
44064 39 mi36 min NW 14 G 19 53°F 1019.7 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 41 mi44 min 55°F 1019 hPa
CHYV2 - 8638999 - Cape Henry, VA 44 mi38 min 54°F 1018.3 hPa
SWPV2 - 8638610 - Sewells Point, VA 44 mi44 min 51°F1019.9 hPa
44089 44 mi56 min 45°F3 ft
DOMV2 - 8638511 - Dominion Terminal Association, VA 44 mi44 min 54°F 1020.2 hPa
PPTM2 - 8578240 - Piney Point, MD 45 mi86 min NNW 21 G 25
BISM2 - 8571421 - Bishops Head, MD 46 mi38 min 48°F 49°F1020.6 hPa
CRYV2 - 8638595 - South Craney Island, VA 48 mi38 min 56°F 1019.8 hPa

Wind History for Rappahannock Light, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Melfa / Accomack Airport, VA20 mi31 minNNW 15 G 2810.00 miFair51°F25°F36%1019.6 hPa

Wind History from MFV (wind in knots)
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2 days agoNE12E9NE8E7E6E7E7E9E5E5E7E4E6E6SE4E4E3E7E10
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Tide / Current Tables for Windmill Point Light, Chesapeake Bay, Virginia
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Windmill Point Light
Click for Map
Sat -- 01:16 AM EDT     1.31 feet High Tide
Sat -- 07:04 AM EDT     Sunrise
Sat -- 07:54 AM EDT     -0.21 feet Low Tide
Sat -- 08:56 AM EDT     Moonset
Sat -- 01:40 PM EDT     1.18 feet High Tide
Sat -- 07:19 PM EDT     Sunset
Sat -- 08:05 PM EDT     -0.17 feet Low Tide
Sat -- 10:30 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.31.31.10.80.40.1-0.1-0.2-0.10.20.60.91.11.210.80.50.2-0.1-0.2-0.10.20.5

Tide / Current Tables for Windmill Point, Rappahannock River, Virginia
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Windmill Point
Click for Map
Sat -- 01:14 AM EDT     1.40 feet High Tide
Sat -- 07:04 AM EDT     Sunrise
Sat -- 07:52 AM EDT     -0.30 feet Low Tide
Sat -- 08:56 AM EDT     Moonset
Sat -- 01:33 PM EDT     1.19 feet High Tide
Sat -- 07:19 PM EDT     Sunset
Sat -- 08:02 PM EDT     -0.29 feet Low Tide
Sat -- 10:30 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.41.31.10.80.40-0.2-0.3-0.20.20.611.21.210.70.40.1-0.2-0.3-0.20.10.6

Weather Map and Satellite Images
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GOES 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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Wind Forecast for Wakefield, VA (16,3,4,5)
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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 numerious 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.