Monday, October23, 2017 L-36.com


Marine Weather and Tides
Onancock, VA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:19AMSunset 6:14PM Monday October 23, 2017 2:11 AM EDT (06:11 UTC) Moonrise 9:43AMMoonset 8:04PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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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ANZ630 Chesapeake Bay From Smith Point To Windmill Point Va- 1240 Am Edt Mon Oct 23 2017
.small craft advisory in effect from this evening through Tuesday afternoon...
Rest of tonight..SE winds 10 kt. Waves 1 foot.
Mon..SE winds 10 kt...increasing to 15 kt late. Waves 1 to 2 ft...building to 2 to 3 ft late.
Mon night..S winds 15 to 20 kt with gusts to around 30 kt. Waves 2 to 3 ft...building to 3 to 4 ft in the late evening and overnight. A chance of showers late in the evening. Showers after midnight.
Tue..S winds 15 to 20 kt with gusts to around 30 kt. Waves 3 to 4 ft...subsiding to 2 to 3 ft in the afternoon. Showers.
Tue night..W winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers in the evening.
Wed..NW winds 10 kt. Waves 1 to 2 ft.
Wed night..NW winds 10 to 15 kt. Waves 2 to 3 ft.
Thu..NW winds 10 to 15 kt. Waves 2 to 3 ft.
Thu night..W winds 5 to 10 kt. Waves 1 to 2 ft.
Fri..SW winds 5 to 10 kt. Waves 1 to 2 ft.
ANZ600 1240 Am Edt Mon Oct 23 2017
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 exit the coast tonight. A cold front will approach from the west on Monday, and push through the waters Tuesday and Tuesday night. High pressure will slowly build into the area from the southwest Wednesday and Thursday.

7 Day Forecast for Marine Location Near Onancock, VA
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location: 37.72, -75.75     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 230535
afdakq
area forecast discussion
national weather service wakefield va
135 am edt Mon oct 23 2017

Synopsis
High pressure slides father off the mid atlantic coast tonight. A
cold front will approach from the west on Monday, then slowly
push through the local area on Tuesday. High pressure builds
across the gulf of mexico Wednesday and Thursday... As low
pressure lingers from the great lakes to new england.

Near term through today
The current surface analysis indicates ~1034 mb sfc high
pressure centered over nova scotia, with an upper level ridge
axis aligned n-s invof ERN seaboard. Another pleasant and mostly
clear evening across the region with thin high clouds.

Temperatures this evening range from the upper 50s to mid 60s
with a light ese wind. Mostly clear to partly cloudy overnight
with lows mainly in the 50s. Patchy fog is possible, mainly from
the WRN shore of the bay through the i-95 corridor, and the
interior lower md ERN shore. During mon, low pressure deepens
over the deep south lower ms valley while a strong upper ridge
remains in place slides just off the east coast. Still
warm mainly dry through mon... Increasing pops limited to (well)
w of I 95 toward late aftn early evening. Highs in the u70s E to
the l-m70s W (where clouds begin to thicken in the afternoon).

Short term tonight through Wednesday
Latest 12z 22 GFS nam ECMWF remain fairly similar W the
overall timing of the next cold front... Now depicting the best
lift forcing for likely to categorical pops (60-90%) from about
06z Tue through 16z Tue (lingering into Tue evening along the
ern shore). Strong low level jet and sfc dew pts in the
60s... Will allow for some locally heavy downpours and isolated
tstms late Mon night Tue morning... Mainly for southern SE va ne
nc. While a few strong storms gusty winds will be possible,
severe threat looks limited due to unfavorable timing. Partial
clearing expected Tue by late morning W and by late aftn e... And
have continued W lowering pop trend w-e. Still mild through
tue W lows Mon night in the 60s... Then highs tues in the 70s to
near 80 f SE as cold air lags well behind off to the NW of the
local area.

Cold front reaches the coast early Tue night and is expected
to exit the coast by daybreak Wed morning. Any ra tapers
pushes off the coast Tue evening. Temperatures falling from the
60s in the evening to 50f inland and upper 50s closer to the
coast by Wed morning. Dewpoints also fall from the lower 50s nw
to lower 60s SE in the evening to 40-45f inland and 45f to
around 50f by morning. On wed, area looks to remain in between
the sfc cold front well offshore and deeper moisture cold pool
aloft to our wnw. Enough instability present to keep skies
partly to mostly cloudy, but will keep the forecast dry attm.

Cooler with highs mainly from the mid to upper 60s.

Long term Wednesday night through Sunday
Dry conditions Wed night as exiting cold front moves well
offshore. Light showers possible (mainly delmarva) Thu morning
as upper trough swings through the region. Otherwise, dry
conditions prevail Thu through at least Sat as sfc high
pressure builds in from the SW Thu and shifts off the mid
atlantic coast during fri. The high then tracks up off the new
england coast for sat. Model consensus diverges Sat night into
sun. ECMWF has a coastal low developing near the area... While
the GFS not only has a coastal low developing near the area
but also a deepening sfc low over the great lakes region into
ontario. Incoming precip differs greatly between models,
therefore have leaned closer to climatology during this time.

Temperatures at to slightly below normal for Wed night with
lows in the 40s (upper 30s possible far NW counties). Temps
slow to rebound on Thu as upper trough swings through and more
stable NW flow aloft develops over the area. Highs 60-64f. High
pressure slides into the region Thu night and then temperatures
slowly moderate. Lows Thu night in the 40s (around 50f beaches).

Seasonal normal highs Fri in the upper 60s to around 70f. Lows
fri night in the upper 40s inland to 50-55f immediate coast.

Highs Sat in the lower 70s (upper 60s beaches). Lows Sat night
generally in the 50s (upper 40s eastern piedmont). Highs sun
generally in the upper 60s to around 70f (mid 60s eastern
piedmont).

Aviation 06z Monday through Friday
Sfc hi pres has shifted to off of ERN new england the past 12-18
hours... While lo pres and an associated cold front moves into
the oh tn valleys. Fg is once again a concern... Mainly at
sby phf ecg W another round of vrb CIGS vsbys... And will likely
persist through the early morning hours.VFR conditions and
increasing mid high clouds are expected to prevail after
13z 23... W a SE wind increasing to 10-12kt... Gusts up to 20 kt
possible during the aftn eve. A cold front is expected to track
through the region tonight into Tue morning. This front will
bring the potential for MVFR ifr conditions in ra and lo cigs.

MainlyVFR Tuesday aftn evening through fri.

Marine
High pressure will slide farther into the atlc tonight into mon
morning, allowing a frontal boundary with low pressure areas
riding nwrd along it to push ewrd thru the oh and tn valleys.

Expect ese then SE winds arnd 10 kt or less this evening into
mon morning. Waves 1 to 2 ft and seas 2 to 3 ft.

That frontal boundary and associated low pressure areas will
approach fm the west late Mon thru tue, then push acrs the
waters and offshore Tue night into Wed morning. The pressure
gradient will lead to increasing SE then S flow ahead of the
front later Mon thru Tue morning, then shifting to the wnw
behind the front Tue night into Wed morning. Have issued small
craft advisories for all the waters fm Mon night into at least
early Tue aftn (for the rivers), then lingering sca's thru tue
aftn early Tue evening for the ches bay and currituck snd. Will
have sca's for the coastal waters fm Mon night thru wed. S winds
of 15-25 kt with higher gusts will occur Mon night into tue
evening.

Seas will build to 5-9 ft with waves of 3-4 ft in the ches bay
likely. W to NW winds 10-15 kt expected Wed night thru thu, as
the front pushes out to sea and high pressure builds into the
area fm the west.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory from 10 pm this evening to 1 pm edt
Tuesday for anz635>638.

Small craft advisory from 8 pm this evening to 5 pm edt
Tuesday for anz630>632-634.

Small craft advisory from 10 pm this evening to 7 pm edt
Tuesday for anz633.

Small craft advisory from 10 pm this evening to 7 pm edt
Wednesday for anz650-652-654-656-658.

Synopsis... Lkb
near term... Lkb
short term... Alb lkb
long term... Bmd
aviation... Alb
marine... Tmg


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WAHV2 - 8631044 - Wachapreague, VA 8 mi42 min Calm G 1 67°F 68°F1025.8 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 19 mi42 min ESE 11 G 12 1025.9 hPa
44089 22 mi42 min 69°F2 ft
44058 - Stingray Point, VA 29 mi32 min SSE 9.7 G 12 69°F 1025.6 hPa
44042 - Potomac, MD 38 mi32 min SSE 9.7 G 12 69°F 1024.8 hPa
BISM2 - 8571421 - Bishops Head, MD 38 mi42 min ESE 8.9 G 11 67°F 67°F1025.9 hPa
KPTV2 - 8632200 - Kiptopeke, VA 40 mi42 min 69°F
LWTV2 - 8635750 - Lewisetta, VA 42 mi42 min S 1.9 G 2.9 65°F 67°F1025.4 hPa
44072 45 mi32 min SE 9.7 G 12 70°F
YKRV2 - 8637611 - York River East Rear Range Light, VA 45 mi42 min SSE 8.9 G 9.9 69°F 1025.7 hPa
44096 48 mi51 min 70°F2 ft

Wind History for Rappahannock Light, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Melfa / Accomack Airport, VA5 mi37 minESE 37.00 miPartly Cloudy62°F62°F100%1025.7 hPa
Wallops Flight Facility Airport, VA21 mi18 minSSE 410.00 miFair66°F66°F100%1025.6 hPa

Wind History from MFV (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmE3SE6SE7SE5SE4SE3SE3E3SE3CalmCalmSE4E3CalmE4SE3
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3NW3NW3SE5SE4CalmCalmCalmSE3SE3CalmSE4CalmCalm
2 days agoCalmCalmSW3W3W3NW3CalmNW3N6NW7NW8N5NW9NW7NW6N4N4CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Onancock, Onancock Creek, Chesapeake Bay, Virginia
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Onancock
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Mon -- 02:43 AM EDT     1.91 feet High Tide
Mon -- 07:19 AM EDT     Sunrise
Mon -- 09:01 AM EDT     0.28 feet Low Tide
Mon -- 10:42 AM EDT     Moonrise
Mon -- 03:03 PM EDT     2.20 feet High Tide
Mon -- 06:14 PM EDT     Sunset
Mon -- 09:04 PM EDT     Moonset
Mon -- 09:50 PM EDT     0.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.61.81.91.81.41.10.70.40.30.40.81.21.72.12.22.11.81.51.10.70.40.40.5

Tide / Current Tables for Pungoteague Creek, Chesapeake Bay, Virginia
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Pungoteague Creek
Click for Map
Mon -- 02:13 AM EDT     1.81 feet High Tide
Mon -- 07:19 AM EDT     Sunrise
Mon -- 08:29 AM EDT     0.25 feet Low Tide
Mon -- 10:42 AM EDT     Moonrise
Mon -- 02:33 PM EDT     2.08 feet High Tide
Mon -- 06:15 PM EDT     Sunset
Mon -- 09:04 PM EDT     Moonset
Mon -- 09:18 PM EDT     0.33 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.61.81.81.51.20.80.50.30.30.50.91.41.822.11.91.61.20.80.50.30.40.6

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Wakefield, VA (2,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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weather_mapweather_map weather_map

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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.