Saturday, December16, 2017 L-36.com


Marine Weather and Tides
Portsmouth, 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 7:11AMSunset 4:52PM Saturday December 16, 2017 1:50 PM EST (18:50 UTC) Moonrise 5:31AMMoonset 4:04PM Illumination 3% Phase: Waning Crescent; Moon at 28 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- 1239 Pm Est Sat Dec 16 2017
This afternoon..SW winds 10 to 15 kt. Waves 1 to 2 ft.
Tonight..SW winds 10 to 15 kt...becoming W 5 to 10 kt late. Waves 1 to 2 ft.
Sun..S winds 5 to 10 kt. Waves 1 foot.
Sun night..SW winds 10 kt. Waves 1 foot.
Mon..SW winds 5 to 10 kt. Waves 1 foot.
Mon night..SW winds 10 kt. Waves 1 foot.
Tue..SW winds 10 kt. Waves 1 to 2 ft.
Tue night..W winds 10 to 15 kt. Waves around 2 ft.
Wed..NW winds 10 to 15 kt. Waves 2 to 3 ft.
Wed night..N winds 5 to 10 kt. Waves 1 to 2 ft.
ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 1239 Pm Est Sat Dec 16 2017
This afternoon..SW winds 15 to 20 kt. Seas 2 to 3 ft with a dominant period of 4 seconds.
Tonight..W winds 15 to 20 kt...diminishing to 10 to 15 kt after midnight. Seas 2 to 3 ft with a dominant period of 5 seconds.
Sun..NW winds 5 kt...becoming S in the late morning and afternoon. Seas around 2 ft...mainly S swell with a dominant period of 10 seconds.
Sun night..SW winds 10 to 15 kt. Seas 2 ft.
Mon..W winds 10 to 15 kt. Seas 2 ft.
Mon night..SW winds 10 to 15 kt. Seas 2 ft.
Tue..SW winds 10 to 15 kt. Seas around 2 ft...building to 3 ft in the afternoon.
Tue night..W winds 10 to 15 kt...becoming nw 15 to 20 kt after midnight. Seas 2 to 3 ft.
Wed..NW winds 15 to 20 kt. Seas 3 to 4 ft.
Wed night..N winds 10 to 15 kt. Seas 3 to 4 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 161759
afdakq
area forecast discussion
national weather service wakefield va
1259 pm est Sat dec 16 2017

Synopsis
High pressure builds across the southeast states today, and
moves off the carolina coast Sunday and Monday. The local area
remains in between weak low pressure to the south and strong low
pressure over canada on Tuesday. A cold front crosses the region
Tuesday night into Wednesday.

Near term through tonight
The current analysis indicates surface high pressure centered
from the gulf coast ene to along the nc coast, with low pressure
now well off the mid-atlc and southern new england coast. The
sky is mostly sunny across most of the area with the exception
of some mid and high clouds from the NRN neck to the lower md
ern shore. Temperatures have moderated into the 30s after early
mornings lows that ranged through the 20s (with even a few
upper teens). For today, the sfc high will slowly build ene and
become centered from al to southern nc, bringing a wsw low
level flow to the cwa. Some mid clouds will continue to brush
through the northern 1 2 of the area through 21z so cloud
coverage should avg out partly sunny north and mostly sunny
south. Highs today will range from the upper 40s north and near
the coast to the lower 50s sw. Mainly clear with a light wind
tonight and will side with the cold edge of guidance under good
radiational cooling conditions. Lows will avg in the mid-upper
20s inland to the lower 30s along the SE va NE nc coast.

Short term Sunday through Tuesday
Sfc high pressure slides offshore Sunday as a weak sfc trough
pushes across the great lakes. Some upper level SRN stream
moisture will arrive ahead of this wave, which will result in
increasing clouds Sunday (genly mostly cloudy by aftn). Highs
Sunday range from around 50f N to the mid 50s s. High pressure
remains offshore Monday. A dampening SRN stream wave pushes into
the tennessee valley by Monday aftn. Mostly cloudy Sun evening
with a slight chc pop md ERN shore, otherwise measurable precip
chances look too low for a mention in the gridded fcst. Decreasing
clouds later Sunday night with lows ranging from the mid upper
30s N to the low 40s se. Genly partly sunny and milder Monday
with highs in the upper 50s N to lower 60s s. The southern
stream system to pass by to our south Mon night Tue ahead of a
stronger cold front well off to our nw. Will carry just a 20%
pop over the south Mon night and into all areas for tue. Quite
warm Tue with highs in the 60s (potentially close to 70 f
depending on how much Sun prevails).

Long term Tuesday night through Friday
The medium range period to be dominated by an upper ridge
anchored from the gulf of mexico to the bahamas, with a fairly
progressive split flow regime over most of the conus. This
setup will keep any significant cold air locked up well to our
north across canada and the upper midwest. Latest gfs ECMWF are
in good agreement at pushing a cold front through the local area
tue night into wed, allowing for a dry and somewhat cooler day
wed with highs mainly 50-55 f. A weakening southern stream
system is progged to lift ene over the southern states Wed night
and off the SE coast Thu (the ECMWF and gem being farther north
and stronger with this feature than the gfs). For Wed night,
have trended clouds and pops up a little bit from previous
forecast to 20% central zones and 30% in nc, but still appears
as if most of the deeper moisture stays south. This looks to be
an all rain event ATTM with lows in areas with pops mainly in
the mid upper 30s. Drying out Thu with high temperatures
remaining close to seasonal averages in the upper 40s to mid
50s. Temperatures trend back up above climate normals for Friday
with winds swinging back out of the southwest.

Aviation 18z Saturday through Thursday
High pressure is centered over al ga sc as of 18z and this is
resulting in a 5-10kt wsw wind under a primarily sunny sky aside
from a few patches of high clouds. High pressure becomes
centered over the carolina coast tonight with a mostly clear sky
and a calm to very light wind. High pressure slides offshore
Sunday and Sunday night as a weak trough approaches from the
wsw. This will bring a period of bkn-ovc mid high clouds Sunday
aftn into Sunday evening. High pressure remains near the
southeast coast Monday through Tuesday withVFR conditions
prevailing along with occasional mid high clouds. Low pressure
passes S of the region Wednesday with high pressure building n
of the region Thursday.

Marine
All SCA headlines have been cancelled with this forecast package
with winds down to 10-15 kt over the bay sound and seas over coastal
wtrs down to mainly 2-3 ft. Sfc low pressure rapidly pushes offshore
today as high pressure builds over the SE states. Slight increase in
pressure gradient this evening may lead to winds close to sca
criteria over the bay, but confidence is not high enough ATTM to
issue a headline. Otws, sub-sca conditions over the next few days as
the sfc high slides off the SE coast and low pressure passes well
north of the local area with a lack of any caa.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Lkb
near term... Ajz lkb
short term... Ajz lkb
long term... Ajb lkb
aviation... Ajz
marine... Mas


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SWPV2 - 8638610 - Sewells Point, VA 1 mi50 min 45°F1022.2 hPa
CRYV2 - 8638595 - South Craney Island, VA 3 mi50 min WSW 6 G 8.9 44°F 1022.1 hPa (-2.5)
WDSV2 - 8638614 - Willoughby Deguassing , VA 4 mi50 min SW 8.9 G 9.9 1022 hPa (-2.3)
DOMV2 - 8638511 - Dominion Terminal Association, VA 5 mi50 min S 5.1 G 7 42°F 1022.4 hPa (-2.6)
MNPV2 - 8639348 - Money Point, VA 11 mi50 min W 4.1 G 6 44°F 47°F1022.2 hPa (-2.4)
44064 14 mi40 min W 12 G 14 42°F 1 ft1022.2 hPa
CHBV2 16 mi50 min WSW 11 G 13 42°F 47°F1020.9 hPa (-2.1)
CHYV2 - 8638999 - Cape Henry, VA 18 mi50 min SSW 7 G 9.9 44°F
44072 19 mi40 min WSW 12 G 14 44°F
YKTV2 - 8637689 - Yorktown, VA 22 mi50 min WSW 8 G 16 44°F 46°F1021.3 hPa (-2.5)
YKRV2 - 8637611 - York River East Rear Range Light, VA 22 mi50 min WSW 8.9 G 9.9 45°F 1022 hPa (-2.7)
KPTV2 - 8632200 - Kiptopeke, VA 25 mi50 min SW 11 G 12 44°F
44096 29 mi59 min 51°F1 ft
44041 - Jamestown, VA 30 mi40 min SW 9.7 G 14
44099 - Cape Henry, VA (147) 33 mi50 min 52°F2 ft
YRSV2 - Chesapeake Bay,VA 39 mi80 min SW 4.1 45°F 1023 hPa20°F
WAHV2 - 8631044 - Wachapreague, VA 59 mi50 min WSW 4.1 G 9.9 45°F 38°F1021.1 hPa (-2.2)
44014 - VIRGINIA BEACH 64 NM East of Virginia Beach, VA 83 mi60 min NW 9.7 G 12 44°F 57°F4 ft1023.3 hPa (-1.0)26°F

Wind History for South Craney Island, VA
(wind in knots)    EDIT      (on/off)   Help
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1 day
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NW9
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norfolk, Naval Air Station, VA3 mi1.9 hrsWNW 610.00 miFair43°F21°F42%1023.8 hPa
Norfolk, Norfolk International Airport, VA8 mi59 minSSW 710.00 miFair46°F19°F34%1022 hPa
Langley Air Force Base, VA11 mi1.9 hrsW 710.00 miFair44°F20°F39%1023.7 hPa
Newport News, Newport News / Williamsburg International Airport, VA17 mi56 minWSW 910.00 miFair45°F19°F37%1022 hPa
Virginia Beach, Oceana, Naval Air Station, VA18 mi1.9 hrsVar 610.00 miFair44°F19°F37%1023.6 hPa
Chesapeake, Chesapeake Municipal Airport, VA19 mi75 minN 010.00 miFair45°F19°F36%1023 hPa
Fort Eustis / Felker, VA21 mi1.9 hrsSSW 610.00 miFair44°F19°F38%1022.7 hPa
Suffolk, Suffolk Municipal Airport, VA22 mi75 minW 310.00 miFair45°F19°F37%1023.4 hPa

Wind History from NGU (wind in knots)
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Last 24hrNW12NW13NW15
G24
--W16W14W12NW10NW8NW6NW4W6W4W5W5W3W4W4CalmW7W6W5W66
1 day agoNE12N11NE11NE15
G20
NE14NE11NE10NE10NE9NE9NE8NE12
G16
NE12NE11NE9NE11NE10NE11NE10NE8E11E9E8W5
2 days agoW14
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SW12SW10SW6SW5S6SW8S8S9
G18
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SW12SW10W13W13NW8

Tide / Current Tables for Sewells Point, Hampton Roads, Virginia
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Sewells Point
Click for Map
Sat -- 01:18 AM EST     -0.10 feet Low Tide
Sat -- 05:29 AM EST     Moonrise
Sat -- 07:11 AM EST     Sunrise
Sat -- 07:44 AM EST     2.67 feet High Tide
Sat -- 02:03 PM EST     -0.03 feet Low Tide
Sat -- 04:03 PM EST     Moonset
Sat -- 04:50 PM EST     Sunset
Sat -- 07:58 PM EST     2.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.1-00.411.62.22.62.72.41.91.30.60.1-00.10.51.11.622.221.61

Tide / Current Tables for Chesapeake Bay Entrance, Virginia Current
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Chesapeake Bay Entrance
Click for Map
Sat -- 01:05 AM EST     -1.15 knots Max Ebb
Sat -- 04:02 AM EST     0.00 knots Slack
Sat -- 05:28 AM EST     Moonrise
Sat -- 06:41 AM EST     0.95 knots Max Flood
Sat -- 07:10 AM EST     Sunrise
Sat -- 10:16 AM EST     -0.00 knots Slack
Sat -- 01:51 PM EST     -1.25 knots Max Ebb
Sat -- 04:02 PM EST     Moonset
Sat -- 04:48 PM EST     Sunset
Sat -- 04:59 PM EST     0.00 knots Slack
Sat -- 07:07 PM EST     0.57 knots Max Flood
Sat -- 09:57 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-1.1-1-0.6-00.60.90.90.80.60.1-0.4-0.8-1.1-1.2-1-0.600.40.60.50.3-0-0.5

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 (13,3,4,5)
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Ground Weather Radar Station Wakefield, VA
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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.