Saturday, September23, 2017 L-36.com


Marine Weather and Tides
Urbanna, 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 6:57AMSunset 7:04PM Saturday September 23, 2017 5:48 PM EDT (21:48 UTC) Moonrise 9:08AMMoonset 8:18PM Illumination 11% 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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ANZ635 Rappahannock River From Urbanna To Windmill Point- 359 Pm Edt Sat Sep 23 2017
Through 7 pm..NE winds 5 kt. Waves 1 foot.
Tonight..NE winds 5 kt...becoming se late in the evening, then becoming W after midnight. Waves 1 foot. Patchy fog after midnight.
Sun..NE winds 5 to 10 kt. Waves 1 foot. Patchy fog early in the morning.
Sun night..NE winds 5 kt. Waves 1 foot.
Mon..NE winds 5 kt...increasing to 10 kt in the late morning and afternoon. Waves 1 foot.
Mon night..NE winds 10 kt. Waves 1 foot.
Tue..NE winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers and tstms.
Tue night..NE winds 15 kt. Waves 2 ft. A chance of tstms in the evening. A chance of showers.
Wed..NE winds 15 to 20 kt. Waves 2 to 3 ft. A chance of showers.
Wed night..NE winds 15 kt. Waves 1 to 2 ft. A chance of showers.
Thu..N winds 15 kt. Waves around 2 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ600 359 Pm Edt Sat Sep 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 remains centered northwest of the area through the weekend, while the remnants of jose lift northeastward away from the area. Hurricane maria will move slowly northward or north- northwestward off the southeast coast through the middle of next week. SEe the national hurricane center advisories for details. SWells from hurricane maria will begin to impact coastal area by late this weekend.

7 Day Forecast for Marine Location Near Urbanna, VA
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location: 37.65, -76.58     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 232034
afdakq
area forecast discussion
national weather service wakefield va
434 pm edt Sat sep 23 2017

Synopsis
High pressure will continue to influence the weather pattern
through Sunday night. Hurricane maria is forecast to move
northward between the offshore atlantic waters and bermuda
through most of the upcoming week. A cold front is expected to
cross the area by mid week and push maria east of the region.

Near term through Sunday
Not much of a pattern change anticipated for tonight with
stacked high pressure to the north and a weak upper low over the
gulf coast states west of fl. Kept low temperatures similar to
those experienced this morning and added patchy fog mainly for
inland va NE nc areas late this evening to just after sunrise.

Expect mostly clear skies and lows in the upper 50s to lower
60s.

The stacked high slowly slides eastward on sun... Preventing
hurricane maria from moving too far northward. Skies remain
mostly sunny with temperatures warming nicely to highs in the
mid-upper 80s inland (low-mid 80s beaches due to breezy ne
winds). Afternoon dewpoints falling into the upper 50s to
mid 60s will create ambient conditions that should feel
comfortable rather than humid.

Short term Sunday night through Tuesday
Southern end of the stacked high begins to break down Sun night
as hurricane maria drifts northward but remaining well off the
southeast coast. Biggest change will be slightly warmer
overnight lows in the mid 60s (upper 60s to around 70f beaches)
as onshore NE winds remain breezy in response to the pressure
gradient tightening between the sfc high to the north and maria
to the south.

Maria continues to move northward on Monday with gradient winds
remaining persistently breezy from the ne. Gusts around
20-25 mph should be anticipated along coastal areas of
se va NE nc... Where farther inland, gusts should range from
15-20 mph. Clouds from the outer bands of maria will start to
rotate into areas along the coast from NE nc to md... Especially
as the afternoon progresses. This should impact temperatures
near SE coastal areas with highs in the upper 70s to lower 80s.

Farther inland, less clouds present should allow temps to warm
into the mid- upper 80s. Isolated thunderstorms may be possible
mon afternoon if the outer bands can make it far enough north to
rotate into far SE va NE nc coastal areas. Per 12z data, models
in fair agreement in showing maria's center located an average
of 320 miles SE of CAPE hatteras by Monday evening with
variations in precip coverage, thus the reason why precip is
limited to isolated for mon.

From Mon night into tue, model consensus begins to fall apart.

The general trend among all models is for maria to continue
pushing northward. However, the GFS is more progressive in
shifting its track nnw and closer to CAPE hatteras (around
160 miles ese), whereas the ECMWF shows a slower northward track
and keeping the center around 225 miles SE of CAPE hatteras.

Despite model differences, the overall trend is for maria to
approach the mid atlantic region Mon night and Tue with precip
chances increasing during this time. Have broad-brushed pops
into 6 hour segments in an effort to show the upward trend while
not putting too much detail into the forecast until models get a
better handle on how close maria can get to the coast before
being pushed out to sea by a cold front and incoming upper
trough with stronger westerly steering winds aloft. Given model
differences, temperatures will be tricky... However dewpoints
will be on the rise into the upper 60s to lower 70s. Expect
increasing low temperatures Mon night (upper 60s to lower 70s),
and lower high temperatures on Tue due to more clouds precip
across the area. Highs in the mid-upper 70s near the coast to
around 80f generally along west of interstate 95.

Long term Tuesday night through Saturday
First part of the extended, Tuesday night through Thursday,
will be predicated on future track of hurricane maria. Latest
nhc track is a bit further west than 24 hours ago, which
increases the potential for some rainfall near the bay ocean,
somewhat stronger winds, higher seas, and some coastal
flooding. Have utilized superblend for tangible weather during
this period, given potential uncertainty in the track.

Models quite consistent after the daytime hours Thursday in
taking maria fairly quickly northeastward away from the area. In
advance of upper trof dropping southeastward from canada. This
trof and associated cold front move into the region next
Saturday day 7 .

Above normal temperatures continue through Thursday, with highs
from the upper 70s to mid 80s. Temperatures cool into the 70s
Friday Saturday in the wake of hurricane maria. Lows Tuesday
night through Wednesday night range from the mid 60s to around
70f, then mid 50s NW to mid 60s SE Thursday night, and in the
50s Friday night.

Aviation 20z Saturday through Thursday
Vfr conditions prevail for the most part through the 18z taf
period, as high pressure remains in control over the area. Have
maintained some MVFR overnight at kric ksby per 12z taf
issuance. This seems reasonable given little overall pattern
change, and dew points are about the same as Friday. Have kept
korfVFR through the period, as that terminal is generally not
prone to nocturnal fog development.

However, have opted to forecast similar conditions to Friday
night at kphf kecg. Both these locations had at least
intermittent ifr lifr Friday night. Since the overall pattern is
unchanged from the last 24 hours, both of these sites should
again see intermittent ifr lifr conditions after 02z.

Outlook: generallyVFR dry conditions, with the exception of
patchy morning fog, are anticipated through the Monday due to
the influence of high pressure over the region. Sub-vfr
conditions will be possible Tuesday through mid next week,
primarily at eastern TAF sites, as moist northerly flow from
tropical cyclone maria overspreads the region.

Marine
Long period swell continues to propagate toward the coast with
seas generally 4-6 ft and the current small craft for hazardous
seas will continue in effect through Sun night (after that winds
will increase and the headlines will likely be converted to the
more usual small craft advsy). Overall, expect seas of 4-6 ft
to persist Sunday Sunday night, then build more significantly
mon- Wed as ese swell and some increasing winds arrive from slow
moving maria. The bulk of the forecast guidance (as well as the
official NHC forecast) still keeps maria offshore of the
carolinas Tue into thu, before it gets kicked quickly ene out
to sea Thu night into Fri night. Based on the latest guidance,
have increased winds and seas fcst for tue-thu, with at least
sca conditions expected all areas and the potential for gales
over the lower bay coastal waters (or tropical headlines).

Either way, seas over the coastal waters should easily reach 10
ft or greater from tue-thu. Monitor the NHC forecast for the
official forecast track of maria.

Tides coastal flooding
Tidal departures this aftn avg 1.0 to 1.5 ft across the entire
area. Minor flooding continues mainly across the upper bay from
lewisetta to bishops head through this evening. The following
high tide overnight early Sunday will tend to be slightly lower
than the one this evening but will be close enough to just
extend the coastal flood advisory through Sun morning. Elsewhere
over the mid lower bay, the water levels peaked a few tenths
below minor flood thresholds earlier today, with the overnight
tide expected to be slightly lower so did not issue any
headlines for these areas. Water levels will tend to remain
elevated sun-mon, but overall most places should remain below
any minor flood thresholds. Will need to watch for additional
flooding next week, especially by later Tue and Wed (and
perhaps thu). This will depend on the exact track of maria, but
the potential for significant tidal flooding exists (especially
over locations adjacent to the lower bay and southern va NE nc
waters. High surf advisories likely will be needed by late mon
or Tue as well.

High risk for rip currents for all beaches adjacent to coastal
waters continues through Sunday, as 3-5 ft nearshore waves and
13-15 second swell persists.

Akq watches warnings advisories
Md... Coastal flood advisory until 9 am edt Sunday for mdz021>023.

Nc... None.

Va... Coastal flood advisory until 7 am edt Sunday for vaz075-077.

Marine... Small craft advisory for hazardous seas until 6 am edt Monday
for anz650-652-654-656-658.

Synopsis... Bmd
near term... Bmd
short term... Bmd
long term... Ajz alb wrs
aviation... Ajz wrs
marine... Lkb tmg
tides coastal flooding... Akq


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YRSV2 - Chesapeake Bay,VA 18 mi78 min NNE 2.9 82°F 1018 hPa69°F
44058 - Stingray Point, VA 18 mi28 min NNE 5.8 G 7.8 78°F 1017.5 hPa
LWTV2 - 8635750 - Lewisetta, VA 25 mi48 min N 7 G 9.9 81°F 77°F1017.2 hPa (-0.5)
44042 - Potomac, MD 29 mi28 min N 9.7 G 14 81°F 1016.5 hPa
YKTV2 - 8637689 - Yorktown, VA 30 mi48 min E 1.9 G 2.9 78°F 77°F1016.8 hPa (-0.5)
YKRV2 - 8637611 - York River East Rear Range Light, VA 30 mi48 min NNE 5.1 G 6 77°F 1017.6 hPa (-0.6)
RPLV2 - 8632837 - Rappahannock Light, VA 31 mi48 min NNW 9.9 G 11 1017.7 hPa (-0.8)
44041 - Jamestown, VA 32 mi28 min NE 5.8 G 9.7
PPTM2 - 8578240 - Piney Point, MD 34 mi48 min NNE 8 G 8.9
44072 35 mi28 min NE 7.8 G 7.8 78°F
KPTV2 - 8632200 - Kiptopeke, VA 46 mi48 min NNW 11 G 12 76°F
WAHV2 - 8631044 - Wachapreague, VA 47 mi48 min ENE 5.1 G 7 76°F 80°F1017.3 hPa (+0.0)
SLIM2 - 8577330 - Solomons Island, MD 47 mi48 min NNW 7 G 8.9 81°F 77°F1016.9 hPa (-0.6)
DOMV2 - 8638511 - Dominion Terminal Association, VA 48 mi48 min SE 1.9 G 8 80°F 1017.2 hPa (-0.6)
BISM2 - 8571421 - Bishops Head, MD 49 mi48 min NW 7 G 16 81°F 79°F1017 hPa (-0.9)
WDSV2 - 8638614 - Willoughby Deguassing , VA 49 mi48 min NE 8 G 8.9 77°F 1017.2 hPa (-0.5)

Wind History for Lewisetta, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
West Point, Middle Peninsula Regional Airport, VA13 mi52 minN 410.00 miPartly Cloudy84°F64°F51%1017.9 hPa
Tappahannock-Essex County Airport, VA22 mi53 minN 410.00 miFair84°F52°F34%1017.9 hPa

Wind History from FYJ (wind in knots)
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Last 24hrNW5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3NW4NW3N5N3N5NE5N4
1 day agoNE3CalmCalmCalmCalmCalmCalmCalmCalmW3SW3CalmW3W4CalmNW5NW3N5CalmW6CalmW4W3Calm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN4N3N6N3N7CalmN6N3

Tide / Current Tables for Urbanna, Rappahannock River, Virginia
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Urbanna
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Sat -- 02:20 AM EDT     1.63 feet High Tide
Sat -- 06:55 AM EDT     Sunrise
Sat -- 08:45 AM EDT     0.12 feet Low Tide
Sat -- 10:07 AM EDT     Moonrise
Sat -- 02:42 PM EDT     1.77 feet High Tide
Sat -- 07:01 PM EDT     Sunset
Sat -- 09:18 PM EDT     Moonset
Sat -- 09:19 PM EDT     0.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.41.61.61.41.10.70.40.20.10.30.61.11.51.71.81.61.310.60.30.20.20.5

Tide / Current Tables for Orchard Point, Rappahannock River, Virginia
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Orchard Point
Click for Map
Sat -- 02:07 AM EDT     1.67 feet High Tide
Sat -- 06:54 AM EDT     Sunrise
Sat -- 08:30 AM EDT     0.13 feet Low Tide
Sat -- 10:07 AM EDT     Moonrise
Sat -- 02:30 PM EDT     1.82 feet High Tide
Sat -- 07:00 PM EDT     Sunset
Sat -- 09:08 PM EDT     0.21 feet Low Tide
Sat -- 09:17 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.51.71.61.410.70.30.20.20.40.81.21.61.81.81.61.310.60.30.20.30.6

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 (17,4,5,8)
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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.