Friday, November16, 2018 L-36.com


Marine Weather and Tides
Portsmouth, 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 6:44AMSunset 4:56PM Friday November 16, 2018 10:22 PM EST (03:22 UTC) Moonrise 1:39PMMoonset 12:00AM Illumination 66% Phase: Waxing Gibbous; Moon at 9 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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ANZ632 Chesapeake Bay From New Point Comfort To Little Creek Va- 722 Pm Est Fri Nov 16 2018
Tonight..W winds 10 to 15 kt, becoming N late. Waves around 2 ft.
Sat..N winds 5 to 10 kt, becoming ne late. Waves 1 to 2 ft.
Sat night..E winds 5 kt. Waves 1 foot.
Sun..SE winds 5 kt. Waves 1 foot.
Sun night..S winds 5 kt, becoming W after midnight. Waves 1 foot.
Mon..NW winds 5 kt. Waves 1 to 2 ft.
Mon night..N winds 5 to 10 kt. Waves around 2 ft.
Tue..N winds 10 kt. Waves 1 to 2 ft.
Tue night..N winds 10 to 15 kt. Waves 1 to 2 ft.
Wed..N winds 10 to 15 kt. Waves 2 to 3 ft.
Wed night..N winds 5 to 10 kt. Waves 1 foot.
ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 722 Pm Est Fri Nov 16 2018
.small craft advisory in effect until 4 am est Saturday...
Tonight..NW winds 15 to 20 kt. Seas 4 to 5 ft with a dominant period of 10 seconds.
Sat..NW winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 4 ft with a dominant period of 9 seconds.
Sat night..N winds 5 to 10 kt. Seas 3 to 4 ft. Mainly se swell with a dominant period of 9 seconds.
Sun..NE winds 5 kt, becoming se in the afternoon. Seas 3 to 4 ft. Mainly se swell with a dominant period of 9 seconds.
Sun night..S winds 5 to 10 kt, becoming W after midnight. Seas around 3 ft.
Mon..NW winds 5 to 10 kt. Seas around 3 ft.
Mon night..N winds 5 to 10 kt. Seas 3 to 4 ft.
Tue..N winds 10 to 15 kt. Seas around 3 ft.
Tue night..N winds 10 to 15 kt. Seas around 3 ft.
Wed..N winds 10 to 15 kt. Seas 3 to 4 ft.
Wed night..N winds 10 to 15 kt. Seas around 3 ft.


7 Day Forecast for Portsmouth, VA
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location: 36.929, -76.345     debug


7 Day Forecast for Chincoteague, VA
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location: 37.834, -75.409     


Area Discussion for - Wakefield, VA
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Fxus61 kakq 170251
afdakq
area forecast discussion
national weather service wakefield va
951 pm est Fri nov 16 2018

Synopsis
Low pressure over new england will accelerate away from the area
through tonight. High pressure resumes control behind the
departing low and remains over the region through the weekend
and into next week.

Near term until 6 am Saturday morning
As of 945 pm Friday...

hi pres builds into the local area from the SW overnight... Wsw
winds become NW remaining AOB 10 mph. Sct-bkn ci... Otherwise skc
w lows ranging through the 30s inland (some u20s possible far
nw) to l40s for coastal SE va NE nc.

Short term 6 am Saturday morning through Monday
As of 245 pm est Friday...

sensible weather over the weekend into early next week
characterized by gradually moderating temperatures, as
previously referenced sfc high pressure builds overhead.

Progressive, quasi-zonal will bring a quiet, pleasant weekend.

Despite the modest warm up, temperatures remain at or just
below climo norms. Highs in the 50s to near 60 each day. Early
morning lows ranging through the 30s to near 40.

Long term Monday night through Friday
As of 253 pm est Friday...

fairly quiet weather expected through at least Thu night, as the
large-scale pattern will be characterized by a longwave trough
centered over ERN canada. This will put us in NW flow aloft through
thu. At the sfc, weak low pressure tracks from the great lakes to
new england from Mon night-tue. This will drag a cold front through
the region during the first part of the day on tue. While moisture
will be lacking with this fropa, there is a slight chc of light rain
over the northwestern half of the CWA from Mon night-tue. Dry
weather will prevail from Tue aftn-thu night as sfc high pressure
settles over the region. The latest gfs ECMWF gem are in agreement
that an area of low pressure develops over the central ERN gulf of
mexico late next week and then moves nne ne. However, the models
differ on the evolution of this feature. The GFS is fastest as it
tracks it to just off the nc coast by late Fri night. This solution
would bring rain to the eastern half of the CWA as early as late
Friday am. Both the ECMWF gem are slower with the NE movement of the
low, as they keep our entire CWA dry through next Saturday am. At
this time, am leaning slightly toward the ECMWF gem solution. Went
ahead and introduced slight chc pops over SE va NE nc on fri
increasing to between 15-30% over southern eastern parts of the cwa
by Sat am.

Highs in the 50s on Tue will drop into the mid-upper 40s
north around 50 south on wed. Warming back up into the 50s area-wide
on Thu fri. Lows Tue Wed night mainly in the low 30s inland upper
30s to around 40 in coastal SE va-ne nc. Slightly warmer on thu
night with lows ranging from the low 30s NW to the low-mid 40s over
the far se.

Aviation 03z Saturday through Wednesday
As of 625 pm est Friday...

vfr conditions will prevail through the 00z TAF period as hi
pres builds across the southeast and mid-atlantic states. Hi
pres prevails for the latter half of the weekend into next week
with continuedVFR conditions expected.

Marine
As of 720 pm est Friday...

cancelled the SCA headline for the coastal waters S of parramore
island where seas have settled in to 3-4 ft. Only remaining
headlines are for the coastal waters N of parramore island for
seas up to 5 ft.

The coastal low continues to lift northeast toward the canadian
maritimes and high pressure over the southeastern us continues
to push into the region with winds slowly diminishing across the
region and at the same times the seas wave heights continue to
fall as well. This trend should come to an end this evening as
the winds should level off for a period time through the early
morning hours at 10 - 15 kts as another weak surge of cold
advection kicks in briefly. By Saturday morning however, expect
to see the surface high moving over the waters and the winds and
seas should again drop. The surface high will slide off the
coast by Sunday evening with a light east to SE flow developing
for Sunday night into Monday. An approaching cold front will
reach the waters late Monday into Monday night turning the winds
westerly and eventually northwesterly Tuesday into Wednesday
before a large sprawling canadian high pressure system arrives
on Wednesday. As the cold air arrives, could see another period
of SCA conditions with the northerly flow Tuesday night into
wed.

Hydrology
As of 1150 am est Friday...

river flood warnings remain in effect for stony creek on the
nottoway, and mattoax on the appomattox, lawrenceville on the
meherrin and sebrell on the nottoway. Palmyra on the rivanna.

Richmond westham on the james.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 4 am est Saturday for anz650-652.

Synopsis... Mam
near term... Alb
short term... Mam
long term... Eri
aviation... Alb mam
marine... Ess lkb
hydrology...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SWPV2 - 8638610 - Sewells Point, VA 1 mi41 min 54°F1018.1 hPa
CRYV2 - 8638595 - South Craney Island, VA 3 mi35 min WSW 5.1 G 6 45°F 1018.2 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 4 mi41 min W 12 G 14 49°F 1017.5 hPa
DOMV2 - 8638511 - Dominion Terminal Association, VA 5 mi41 min W 8 G 8.9 48°F 1018.5 hPa
MNPV2 - 8639348 - Money Point, VA 11 mi41 min WNW 4.1 G 5.1 45°F 57°F1018.2 hPa
44087 12 mi53 min 55°F2 ft
44064 14 mi33 min W 12 G 16 51°F 1018.1 hPa
CHBV2 16 mi41 min W 16 G 18 51°F 1016.8 hPa
CHYV2 - 8638999 - Cape Henry, VA 18 mi35 min WSW 8 G 11 46°F 1016.6 hPa
44072 19 mi33 min W 12 G 16 49°F
YKRV2 - 8637611 - York River East Rear Range Light, VA 22 mi35 min W 12 G 14 49°F 1018.5 hPa
YKTV2 - 8637689 - Yorktown, VA 22 mi35 min WSW 8.9 G 11 47°F 54°F1017.7 hPa
KPTV2 - 8632200 - Kiptopeke, VA 25 mi41 min WNW 16 G 20 55°F
44099 - Cape Henry, VA (147) 33 mi53 min 57°F3 ft
YRSV2 - Chesapeake Bay,VA 39 mi53 min SSW 1 41°F 1019 hPa39°F
WAHV2 - 8631044 - Wachapreague, VA 59 mi35 min W 1.9 G 2.9 45°F 51°F1018 hPa
44014 - VIRGINIA BEACH 64 NM East of Virginia Beach, VA 83 mi33 min WNW 18 G 21 54°F 62°F6 ft1017.7 hPa (+1.4)42°F

Wind History for South Craney Island, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norfolk, Naval Air Station, VA3 mi84 minWSW 510.00 miA Few Clouds46°F36°F68%1018.4 hPa
Norfolk, Norfolk International Airport, VA8 mi32 minWSW 310.00 miFair45°F37°F77%1018.3 hPa
Langley Air Force Base, VA11 mi27 minW 510.00 miFair42°F37°F84%1019 hPa
Newport News, Newport News / Williamsburg International Airport, VA17 mi29 minW 310.00 miFair43°F36°F76%1018.5 hPa
Virginia Beach, Oceana, Naval Air Station, VA18 mi87 minWSW 6 miA Few Clouds42°F36°F79%1018 hPa
Chesapeake, Chesapeake Municipal Airport, VA19 mi28 minN 010.00 miFair37°F34°F94%1019 hPa
Fort Eustis / Felker, VA21 mi87 minW 310.00 miFair46°F36°F71%1017.6 hPa
Suffolk, Suffolk Municipal Airport, VA22 mi48 minN 010.00 miFair40°F36°F87%1019 hPa

Wind History from NGU (wind in knots)
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1 day agoNE13
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E6W4W9W10SW9W14
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2 days agoN14
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N13N11
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N15N11
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N12N12N14N16
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N11N15
G21
NE14
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NE11NE13NE14
G20

Tide / Current Tables for Sewells Point, Hampton Roads, 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
Fri -- 12:22 AM EST     0.00 knots Slack
Fri -- 02:30 AM EST     0.34 knots Max Flood
Fri -- 05:24 AM EST     -0.00 knots Slack
Fri -- 06:43 AM EST     Sunrise
Fri -- 08:56 AM EST     -0.77 knots Max Ebb
Fri -- 12:29 PM EST     0.00 knots Slack
Fri -- 01:37 PM EST     Moonrise
Fri -- 02:56 PM EST     0.46 knots Max Flood
Fri -- 04:53 PM EST     Sunset
Fri -- 05:57 PM EST     -0.00 knots Slack
Fri -- 09:30 PM EST     -0.83 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.10.20.30.30.20.1-0.2-0.5-0.7-0.8-0.7-0.5-0.20.20.40.50.40.2-0-0.4-0.7-0.8-0.8-0.7

Weather Map and Satellite Images
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wmap_A
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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Other links: Northern Pacific     Contential US     Full GOES-East
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.