Tuesday, August20, 2019 L-36.com


Marine Weather and Tides
Gargatha, VA

Version 3.4
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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:19AMSunset 7:51PM Tuesday August 20, 2019 11:27 PM EDT (03:27 UTC) Moonrise 9:42PMMoonset 9:53AM Illumination 70% 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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ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 949 Pm Edt Tue Aug 20 2019
Overnight..SW winds 10 kt. Seas 2 to 3 ft. Mainly se swell with a dominant period of 10 seconds. Isolated showers late.
Wed..SW winds 10 to 15 kt, becoming S 15 to 20 kt late. Seas 3 to 4 ft with a dominant period of 10 seconds.
Wed night..SW winds 15 to 20 kt, diminishing to 10 to 15 kt late. Seas 4 to 5 ft with a dominant period of 6 seconds. A chance of showers and tstms.
Thu..SW winds 10 to 15 kt. Seas 3 to 4 ft with a dominant period of 10 seconds. A chance of showers and tstms in the afternoon.
Thu night..SW winds 10 to 15 kt. Seas around 3 ft. A chance of showers and tstms.
Fri..N winds 5 to 10 kt. Seas around 3 ft. A chance of showers. A chance of tstms in the afternoon.
Fri night..N winds 5 to 10 kt, increasing to 10 to 15 kt late. Seas 2 to 3 ft. A chance of showers and tstms.
Sat..NE winds 10 to 15 kt. Seas around 3 ft.
Sat night..NE winds 10 to 15 kt. Seas around 3 ft.
Sun..NE winds 10 to 15 kt. Seas around 3 ft.
Sun night..E winds 15 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms.
ANZ600 949 Pm Edt Tue Aug 20 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.. A cold front approaches from the west later this week and crosses the area on Friday.


7 Day Forecast for Marine Location Near Gargatha, VA
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location: 37.78, -75.56     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 210145
afdakq
area forecast discussion
national weather service wakefield va
945 pm edt Tue aug 20 2019

Synopsis
A weak trough of low pressure will persist across the area
through Wednesday. A strong cold front moves across the area
Thursday night then stalls across north carolina Friday. High
pressure builds into the area for the weekend.

Near term until 6 am Wednesday morning
As of 940 pm edt Tuesday...

sct (pulse type) tstms have been the rule since late this
afternoon W a couple of stms containing strong severe downburst
winds. There are lingering shras stms attm... Mainly NE of a
orf-ric-ofp line. Hanging onto pops 30-40% pops for those areas
to parts of the lower md ERN shore through about 04-06z 21
before waning. Locally heavy rain will be the main threat now w
the loss of heating. A weak S W will be approaching from
wrn central nc late tonight which may result in isold shras
across far SRN va interior NE nc. Lows mainly 70-75f.

Short term 6 am Wednesday morning through Thursday night
As of 335 pm edt Tuesday...

the above mentioned short wave will slowly move across the
forecast area on Wednesday. This disturbance combined with the
lee trough will allow for another day of widely scattered pop up
thunderstorms. Best activity may be in the east just ahead of
the short wave, but one could not rule out storms closer to the
lee trough in the piedmont either. As such, will go with chance
pops everywhere once again, but focus the highest pops to the
east and to the west during the afternoon.

A cold front approaches the area later Thu and slowly moves
through the area through Friday. Will need to maintain chance
pops Thu aftn through Thu night. Indications that the front
nearly stalls across the area on Friday, which may allow for
some training of storms Friday afternoon especially across the
southern half of the area. As such, will go with likely pops
across the south on Friday.

Temperatures will remain seasonable with low-mid 90s for highs
and upper 60s-mid 70s for lows. Temps do drop back into the mid
80s on Friday with the frontal passage and increased cloudiness.

Long term Friday through Tuesday
As of 335 pm edt Tuesday...

model consensus is slightly slower with the frontal passage than it
was yesterday, as the latest 12z 20 GFS has come into better
agreement with the ECMWF gem. The GFS is forecasting the front to be
invof SRN va NE nc by early Sat am. The latest ECMWF gem both have
the front positioned slightly further n. As a result, expect
showers tstms to continue across the CWA (mainly S of i-64) for much
of Fri night with the front nearby. The cold front very slowly moves
southward next weekend as high pressure over the great lakes slowly
builds toward the region. Shower TSTM chances continue this weekend
over S SW portions of the CWA as ridging aloft sets up off the sc ga
coast and our region GOES under moist wsw-sw flow aloft while sfc
ridging builds into the area. Have a mainly dry weekend forecast for
nrn zones W 30-40% pops for SRN va NE nc. Continued chances for
mainly aftn-evening showers tstms early next week as weak troughing
tries to re-establish itself from the great lakes to the deep south
and deep layer moisture continues to stream into the region from the
sw.

Highs mainly in the low-mid 80s through the weekend with lows in the
60s (except for some low 70s in coastal SE va NE nc). Slightly
warmer by next Tuesday with highs mainly in the mid 80s.&&

Aviation 02z Wednesday through Sunday
As of 718 pm edt Tuesday...

isold-sct tstms continue over the fa though avoiding the taf
sites. Still may a storm near any of the sites the rest of this
evening but expecting the coverage to lower. Models hint at a
weak upper level S W moving into across the fa by Wed afternoon
which may enhance TSTM coverage. Flight restrictions are
possible due to stms. A cold front will approach from the nw
late Thu and push across the fa Thu night into fri. Sct-numerous
shras and tstms are anticipated W (and lingering behind into
sat) that cold frontal passage.

Marine
As of 300 pm edt Tuesday...

no headlines through at least today and most of Wednesday. Early
this afternoon obs continue to show generally a S SW flow of 5-10
kts. Waves are 1-2 ft and seas 2-3 ft. Wednesday night winds and
seas will increase ahead of an approaching cold front. SW winds gust
15-20 kts, and seas build 3-5 ft. SCA may be needed late Wednesday
into Thursday. Latest model guidance continues to show the front
crossing through the area early on Friday, resulting in a N NW flow
behind the front. Winds will then shift to onshore flow this
weekend.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Mrd
near term... Alb
short term... Mrd
long term... Eri
aviation... Alb mrd
marine... Cmf


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44089 12 mi58 min 80°F2 ft
WAHV2 - 8631044 - Wachapreague, VA 14 mi58 min W 5.1 G 11 80°F 87°F1017.8 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 29 mi58 min 1019.9 hPa
BISM2 - 8571421 - Bishops Head, MD 40 mi64 min SW 6 G 6 80°F 87°F1018.3 hPa
OCIM2 - 8570283 - Ocean City Inlet, MD 45 mi64 min S 5.1 G 6 76°F 74°F1018.1 hPa
KPTV2 - 8632200 - Kiptopeke, VA 48 mi64 min WSW 9.9 G 14 82°F

Wind History for Rappahannock Light, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wallops Flight Facility Airport, VA12 mi34 minW 14 G 2910.00 miMostly Cloudy82°F73°F77%1017.4 hPa
Melfa / Accomack Airport, VA14 mi33 minWNW 12 G 2610.00 miThunderstorm in Vicinity77°F71°F83%1018.3 hPa

Link to 5 minute data for KWAL

Wind History from WAL (wind in knots)
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Last 24hrS9--------SW3W3--CalmW4W4--E4E5E7SE5S6S7----SE4SE4SE7S8
1 day ago----SW4--SW4----CalmSW5S4S4S9--S10S10S11S13--S11S11S13
G19
S12S12S8
2 days agoCalmCalmS7S7SW7--W3CalmS3S4----SE8SE11SE8SE10S7S8S8SE8SE6S6SE5S3

Tide / Current Tables for Gargathy Neck, Virginia
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Gargathy Neck
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Tue -- 12:23 AM EDT     3.00 feet High Tide
Tue -- 06:21 AM EDT     Sunrise
Tue -- 06:30 AM EDT     0.25 feet Low Tide
Tue -- 10:53 AM EDT     Moonset
Tue -- 12:50 PM EDT     2.92 feet High Tide
Tue -- 06:51 PM EDT     0.60 feet Low Tide
Tue -- 07:48 PM EDT     Sunset
Tue -- 10:41 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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32.92.61.91.20.60.30.30.71.32.12.62.82.92.72.21.610.70.60.81.31.92.4

Tide / Current Tables for Wallops Island, Virginia
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Wallops Island
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Tue -- 04:42 AM EDT     0.52 feet Low Tide
Tue -- 06:21 AM EDT     Sunrise
Tue -- 10:52 AM EDT     Moonset
Tue -- 11:07 AM EDT     3.82 feet High Tide
Tue -- 05:11 PM EDT     0.63 feet Low Tide
Tue -- 07:48 PM EDT     Sunset
Tue -- 10:40 PM EDT     Moonrise
Tue -- 11:22 PM EDT     3.51 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.42.71.81.10.60.50.81.42.22.93.63.83.73.12.31.50.90.60.71.11.82.53.13.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (23,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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.