Saturday, January19, 2019 L-36.com


Marine Weather and Tides
Virginia Beach, 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 7:12AMSunset 5:16PM Saturday January 19, 2019 10:15 PM EST (03:15 UTC) Moonrise 3:45PMMoonset 5:35AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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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ANZ656 Coastal Waters From Cape Charles Light To Virginia- North Carolina Border Out To 20 Nm- 931 Pm Est Sat Jan 19 2019
.gale warning in effect through Monday morning...
Overnight..S winds 15 to 20 kt with gusts up to 30 kt, increasing to 20 to 25 kt late. Seas 5 to 6 ft with a dominant period of 5 seconds. A chance of showers late this evening. A slight chance of showers, then rain late.
Sun..S winds 15 to 20 kt, becoming W late in the morning, then becoming nw 25 to 30 kt with gusts up to 45 kt in the afternoon. Seas around 4 ft with a dominant period of 7 seconds, building to 6 to 7 ft with a dominant period of 7 seconds in the late morning and afternoon. Rain in the morning.
Sun night..NW winds 30 to 35 kt with gusts up to 45 kt. Seas 6 to 8 ft. Freezing spray after midnight.
Mon..NW winds 25 to 30 kt with gusts to 35 kt, diminishing to 20 to 25 kt late. Seas 6 to 7 ft, subsiding to 4 to 5 ft late. Freezing spray in the morning.
Mon night..NW winds 20 to 25 kt, becoming N 10 to 15 kt. Seas 3 to 4 ft.
Tue..NW winds 5 to 10 kt, becoming sw in the afternoon. Seas 2 to 3 ft.
Tue night..S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft.
Wed..S winds 15 to 20 kt. Seas 3 to 4 ft.
Wed night..SW winds 10 to 15 kt. Seas 3 to 4 ft. Rain likely.
ANZ600 931 Pm Est Sat Jan 19 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.. Low pressure tracks just to the northwest of the area tonight. An arctic cold front crosses the area Sunday morning, followed by dry, colder, and windier conditions Sunday night through Monday.


7 Day Forecast for Marine Location Near Virginia Beach, VA
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location: 36.83, -75.98     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 200015
afdakq
area forecast discussion
national weather service wakefield va
715 pm est Sat jan 19 2019

Synopsis
A warm front lifts north through the mid atlantic region
tonight, as low pressure and an arctic cold front approach from
the west. The arctic front quickly crosses the area Sunday
morning, followed by dry and much colder weather Sunday night
through Monday night.

Near term until 6 am Sunday morning
As of 355 pm est Saturday...

a potent low pressure system aloft is tracking NE from the
lower mississippi valley to the tennessee valley this aftn. At
the surface, high pressure is departing to the ne, with a 997mb
low over WRN tn, and a warm front extending across the srn
appalachians toward the sc coast. Additionally, a weak inverted
trough is located off the carolina coast. A few light showers a
tracking NE across the piedmont and i-95 corridor with waa
aloft, and sct showers are expected to reach coastal NE nc and
far SE va early this evening associated with the trough off the
coast. Otherwise, mostly cloudy to overcast across the region
with temperatures ranging from the upper 30s over the nw
piedmont, to the low mid 40s from the SW piedmont across central
va to the ERN shore, and upper 40s to mid 50s for far SE va ne
nc.

Occasional light showers will continue to stream across the
area through this evening, with steadier rain developing from
the NW piedmont to the md ERN shore late this evening. An
increasing SE wind will result in steady to slowly rising
temperatures through the evening. Surface low pressure is
expected to track from the central appalachians to the NRN mid-
atlantic overnight through early Sunday morning, with an arctic
cold front approaching the piedmont. Meanwhile, the warm front
will lift through the region overnight, and become located N of
the region by early Sunday morning. Temperatures will soar into
the mid 50s to low 60s overnight (with the exception of the nw
piedmont) and dewpoint depressions will only be on the order of
1-3f. A SE wind will become S and increase to 12- 20 mph with
gusts to 25-30 mph toward the coast. A band of moderate to heavy
rain will precede the cold front, a few rumbles of thunder are
possible for SE va and NE nc. The bulk of the rain is expected
to exit the coast by mid-morning Sunday, with a quick drying
trend arriving from the w. QPF ranges from 0.5-0.75".

Short term 6 am Sunday morning through Tuesday
As of 355 pm est Saturday...

a drastic change in sensible weather will occur late Sunday
morning into the aftn as the arctic cold front sweeps across the
area. High temperatures to begin the day range from the upper
40s far NW to the mid 50s to low 60s elsewhere. However, by late
aftn temperatures will generally be in the 30s to low 40s
across the region. The threat of any wintry precip as the cold
air arrives and moisture exists looks minimal to zero, and
therefore only have lingering rain shower chances east through
18z. Strong wind, and a rapidly drying airmass (plummeting
dewpoints) behind the front Sunday aftn will lead to most liquid
evaporating before the bulk of the sub-freezing air arrives.

Therefore, a "flash freeze" is not expected.

A strong NW wind will develop Sunday aftn and evening within
caa behind the front. The wind along the coastlines is expected
to increase to 20-30 mph with gusts up to 40-50mph and a wind
advisory is in effect from the WRN shore of the bay to the ern
shore, and far SE va and coastal NE nc. Farther inland, the wind
speed is expected to reach 15-25 mph with gusts of 30-35 mph.

The sky clears for most areas Sunday evening and overnight,
just in time for the lunar eclipse. There may some stratocu
develop along and south of the bay and out over the ocean, but
not expecting any streamers at this time as the depth of
moisture will be lacking. The wind will slowly be diminishing as
well, except near the coast where gusts 30-40 mph will
continue. Temperatures will continue to fall through the night
with overnight lows in the teens for all except the far
southeast where low 20s are possible. Mostly sunny and cold
Monday. Highs will struggle to reach the mid 20s in the north
and low 30s across the south. A wind chill advisory for the nrn
1 3rd of the area is likely Monday morning as wind chill values
should fall to 5 below zero (0 to 10 above elsewhere).

The arctic high builds over the area Monday night into Tuesday
morning, and then gradually slides offshore by aftn. Monday
night will likely be the coldest night with lows ranging from
the upper single digits over the NW piedmont, to the low mid
teens from central s-central va to the md ERN shore, and upper
teens for far SE va NE nc under a clear sky. Highs Tuesday range
from the mid 30s N to near 40f S under a sunny sky with perhaps
an increase in high clouds late.

Long term Tuesday night through Saturday
As of 355 pm est Saturday...

still favoring the ECMWF for the extended period. High pressure is
sliding off the coast for the beginning of the forecast period
Tuesday night into Wednesday. An area of low pressure and associated
frontal boundary will also be beginning to approach the region from
the wnw during this time period. Rain showers may work into the far
western piedmont by Wednesday morning and will slowly overspread the
area into Wednesday afternoon. Rain chances pick up further
Wednesday afternoon into Thursday evening as low pressure from the
gulf coast states tracks NE along the boundary into the mid atlantic
region. Rain showers linger into Thursday night before potentially
changing over to a few snowflakes by early Friday morning. Drier and
cooler conditions are expected for Friday as NW or N flow takes hold
over the region.

Moderating temperatures to start out the extended period as the flow
becomes more southerly. Highs Wednesday will likely be quite mild,
reaching up into the mid upper 50s to even lower 60s across the
area. Mild temperatures stick around into Wednesday night with
precipitation across the region, expect lows in the 40s to lower
50s. One more mild day on Thursday (highs in the 50s to low 60s)
before much colder temperatures work back into the region Friday and
Saturday. Highs on Friday will generally range from the mid to upper
40s and highs Saturday will struggle to make it out of the 30s. Lows
Thursday night range from the upper 20s NW to mid 30s SE and lows
Friday night range from the low 20s NW to low 30s se.

Aviation 00z Sunday through Thursday
As of 710 pm est Saturday...

low pressure is tracking NE over the eastern tn valley early
this evening, with high pressure anchored well N of the region.

MVFR conditions across area terminals this evening will
gradually deteriorate to ifr conditions late tonight, as low
pressure continues to track newd tonight, reaching sern pa by
12z Sunday, with a cold front trailing back into central va.

This will bring low CIGS and vsby restrictions in ra tonight
into Sunday morning. The best chc for persistent ifr CIGS will
be from ric to sby with a lesser chc at phf, and this will begin
mainly after 00z. MVFR CIGS are expected to prevail at orf ecg,
but occasional ifr CIGS are possible. Spotty light showers
could affect the TAF sites beginning later this aftn into the
evening, with steadier ra arriving late tonight into early
Sunday morning. Occasional ifr vsby is expected in periods of
heavier ra, and this will generally occur from 06-12z at ric,
and 09-15z for sby phf orf ecg. A southerly wind will increase
to 12-20kt as the low tracks N of the area, with gusts to ~25kt
possible toward the coast. Additionally, a strong LLJ will
likely produce a period of llws up to 40-55kt overnight into
early Sunday morning. Drier air quickly arrives late Sunday
morning into the aftn, although sct- bkn clouds ~3.5kft could
linger into early aftn. The wind will become quite strong out of
the nw, with speeds of 15-20kt and gusts to ~30kt for most
sites, and potentially 20-25kt with gusts ~35kt at sby.

High pressure builds in from the NW Sunday night and Monday, and
then passes over the region Monday night into Tuesday. Remaining
breezy Monday, before the wind relaxes by Monday night and
Tuesday. High pressure moves offshore Wednesday, followed by
another low pressure system that affects the area Wednesday
night into Thursday. This system will likely bring more rain and
flight restrictions.

Marine
As of 355 pm est Saturday...

latest sfc analysis shows that high pressure is continuing to
move away from the region. At the same time, strong (~996 mb)
low pressure is deepening as it is moving NE through the
tennessee valley. Winds over the marine areas are generally out
of the E ese at 10-15 kt with a few higher gusts. Seas are
around 3 ft, with 1-2 ft waves on the bay. As the area of low
pressure tracks well to the NW of the waters tonight, winds will
veer to the sse then S from and increase to 20-25 kt by 06-12z
sun.

As the low moves from WRN md to SRN new england during the day
on sun, an arctic cold front will rapidly cross the region from
nw to se. This will cause winds to shift to the NW area-wide by
early Sun afternoon as strong CAA increases across the area.

Since winds are expected to rapidly increase Sun aftn (with gale
force gusts over all marine zones), opted to cancel the ramp-up
sca and extend the gale warning for all marine zones. Winds are
expected to increase Sun evening, as model soundings show deep
mixing (due to the strong caa), resulting in 40-45 kt gusts
across the bay ocean (with gusts up to 40 kt over the rivers).

Gale force gusts will continue through Sun night, but will
diminish to 35-40 kt over the bay ocean by early Mon am. Did not
make any changes to headlines with this forecast package, so
have gale warnings expiring from 09-15z over the waters.

However, some of the 12z 19 guidance is showing the potential
for gales through much of the day on Mon across the NRN coastal
zones. However, not enough confidence to extend warnings attm.

Seas build to 4-6 ft tonight before rapidly building to between
to 5-9 ft over the coastal waters (w 4-6 ft waves on the bay)
behind the arctic cold front.

In addition, the gale force gusts combined with temps plunging
into the mid-upper teens N low-mid 20s S will result in the
possibility of freezing spray across the marine area, including
the rivers. Nomograms show the potential for moderate freezing
spray across the bay ocean Sun night, with light freezing spray
potentially lasting through Mon night.

Winds and seas slowly improve Monday night into Tuesday as high
pressure builds into the region, but winds AOA sca thresholds
are possible through early Tue am over the bay ocean. Another
low pressure system potentially impacts the region by Wednesday
and Thursday, but it looks like only SCA conditions are possible
with this.

Tides coastal flooding
As of 400 pm est Saturday...

tidal anomalies are between 1.0-1.3 ft early this afternoon
across much of the bay. However, am expecting anomalies to
increase tonight as winds veer to the sse then S (and eventually
sw by 12-15z sun). This (combined with it being during the
higher astronomical tide) will have the potential to cause minor
tidal flooding at on the bayside of the lower eastern shore
during the high tide cycle mid-late Sun am. However, not enough
confidence to to issue an advisory ATTM as there is a chance
that anomalies will not increase enough to cause coastal flood
issues.

Akq watches warnings advisories
Md... Wind advisory from noon to 10 pm est Sunday for mdz021>025.

Nc... Wind advisory from noon to 10 pm est Sunday for ncz017-102.

Va... Wind advisory from noon to 10 pm est Sunday for vaz095-098>100.

Wind advisory from 11 am to 7 pm est Sunday for vaz077-078-
084>086-523-525.

Marine... Gale warning until 10 am est Monday for anz650-652-654-656-658.

Gale warning until 4 am est Monday for anz635>637.

Gale warning until 7 am est Monday for anz630>634-638.

Synopsis... Ajz jdm
near term... Ajz mam
short term... Ajz jdm
long term... Ajb
aviation... Ajz mam
marine... Eri
tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHYV2 - 8638999 - Cape Henry, VA 7 mi27 min SSE 11 G 15 54°F 1005.2 hPa
44064 13 mi25 min SSE 12 G 12 49°F 1006.4 hPa
CHBV2 15 mi33 min SSE 13 G 15 49°F 1005.6 hPa
44087 16 mi75 min 44°F2 ft
MNPV2 - 8639348 - Money Point, VA 17 mi33 min 55°F 47°F1006.3 hPa
CRYV2 - 8638595 - South Craney Island, VA 19 mi27 min SW 6 G 8 54°F 1006.2 hPa
SWPV2 - 8638610 - Sewells Point, VA 20 mi33 min 44°F1006 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 20 mi33 min SSE 16 G 18 55°F 1005.4 hPa
KPTV2 - 8632200 - Kiptopeke, VA 23 mi33 min SSE 16 G 19 43°F
DOMV2 - 8638511 - Dominion Terminal Association, VA 25 mi33 min SSE 9.9 G 12 51°F 1006.5 hPa
44072 30 mi25 min 47°F
YKRV2 - 8637611 - York River East Rear Range Light, VA 35 mi27 min SSE 15 G 17 47°F 1006.5 hPa
44100 - Duck FRF 26m, NC (430) 44 mi30 min 47°F2 ft
44056 - Duck FRF, NC 46 mi45 min 45°F2 ft
DUKN7 - Duck Pier, NC - 8651370 46 mi27 min SSE 11 G 12 48°F 45°F1007.3 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 49 mi27 min SE 21 G 24 1007.1 hPa

Wind History for Cape Henry, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Virginia Beach, Oceana, Naval Air Station, VA3 mi19 minS 710.00 miOvercast54°F54°F100%1006.8 hPa
Norfolk, Norfolk International Airport, VA13 mi24 minS 1010.00 miOvercast56°F55°F97%1006.1 hPa
Norfolk, Naval Air Station, VA18 mi76 minSE 1010.00 miOvercast55°F52°F90%1007.9 hPa
Chesapeake, Chesapeake Municipal Airport, VA22 mi20 minSSE 410.00 miOvercast55°F53°F96%1006.8 hPa

Wind History from NTU (wind in knots)
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Last 24hrN6NE6NE5E4E7E5E7E6E5E6E9E9E10
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1 day agoS3CalmCalmCalmCalmSW3SW4SW4W4W3SW5W9W8N5N4NW5NE4N6N4NE5N3NE4E5NE4
2 days agoE5NE6NE7NE5CalmN3NE6NE7NE4NE5E7E10E9NE7E7NE7NE8E7E6E5E4E3SE4S4

Tide / Current Tables for Inside Channel, Rudee Inlet, Virginia
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Chesapeake Bay Entrance, Virginia Current
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Chesapeake Bay Entrance
Click for Map
Sat -- 12:08 AM EST     -1.47 knots Max Ebb
Sat -- 03:14 AM EST     0.00 knots Slack
Sat -- 05:35 AM EST     Moonset
Sat -- 05:59 AM EST     1.28 knots Max Flood
Sat -- 07:14 AM EST     Sunrise
Sat -- 09:42 AM EST     -0.00 knots Slack
Sat -- 01:08 PM EST     -1.47 knots Max Ebb
Sat -- 03:45 PM EST     Moonrise
Sat -- 04:16 PM EST     0.00 knots Slack
Sat -- 05:14 PM EST     Sunset
Sat -- 06:32 PM EST     0.89 knots Max Flood
Sat -- 09:25 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.5-1.3-0.9-0.20.61.11.31.10.80.4-0.2-0.8-1.3-1.5-1.3-0.9-0.20.50.80.90.60.2-0.3-0.9

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 (22,6,7,8)
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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.