Monday, June26, 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 5:46AMSunset 8:30PM Monday June 26, 2017 6:21 PM EDT (22:21 UTC) Moonrise 7:38AMMoonset 9:47PM Illumination 8% 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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ANZ638 James River From James River Bridge To Hampton Roads Bridge- Tunnel- 358 Pm Edt Mon Jun 26 2017
Through 7 pm..SE winds 10 kt. Waves 1 foot.
Tonight..SW winds 5 to 10 kt. Waves 1 foot.
Tue..NW winds 5 to 10 kt. Waves 1 foot. A chance of showers and tstms in the afternoon.
Tue night..W winds 5 to 10 kt. Waves 1 foot.
Wed..NE winds 10 kt...becoming E late. Waves 1 to 2 ft...subsiding to 1 foot.
Wed night..S winds 5 to 10 kt. Waves 1 foot.
Thu..SW winds 10 to 15 kt. Waves 1 to 2 ft.
Thu night..SW winds 15 kt. Waves around 2 ft.
Fri..SW winds 10 kt. Waves 1 to 2 ft.
Fri night..S winds 10 kt. Waves 1 to 2 ft.
Sat..S winds 10 kt. Waves 1 foot. Winds and waves higher and visibilities lower in and near tstms.
ANZ600 358 Pm Edt Mon Jun 26 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.. A weak cold front crosses the region late tonight into early Tuesday. High pressure builds into the area through midweek, before sliding offshore late in the week.

7 Day Forecast for Marine Location Near Portsmouth, VA
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location: 36.93, -76.34     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 262026
afdakq
area forecast discussion
national weather service wakefield va
426 pm edt Mon jun 26 2017

Synopsis
A weak cold front will cross the area tonight into Tuesday
morning. A secondary boundary will push across the region late
Tuesday into Tuesday night. Surface high pressure will build
over the area Wednesday, then slides off the coast for Wednesday
night and Thursday.

Near term until 6 am Tuesday morning
Nice aftn acrs the area under a partly to mostly sunny sky, as
weak high pressure was sliding just offshr. Temps ranged fm the
upper 70s to mid 80s. The high will move farther out to sea
tonight into Tue morning, as a weak cold front pushes into and
acrs the region. No pcpn expected, but becoming partly to mostly
cloudy later tonight into Tue morning, with lows mainly in the
upper 50s to lower 60s.

Short term 6 am Tuesday morning through Thursday
Broad trough aloft slides fm the ERN great lakes oh valley ewrd
acrs the NE u.S. And mid atlc region Tue into Tue evening. A
relatively potent S W aloft will track acrs the local area tue
aftn into Tue evening. Despite relatively dry airmass, this
system could prove strong enough to squeeze out isolated to
sctd showers or tstms in the aftn into the evening, esply E of
i 95. Will carry 20-40% pops, with the highest pops over SE va
and NE nc. Highs in the upper 70s to lower 80s.

Sfc high pressure will finally build into over the region tue
night thru wed, providing dry weather and comfortable conditions
under a mainly clear sky. Lows Tue night in the lower to mid 50s
inland, to the upper 50s to lower 60s at the coast. Highs on wed
ranging fm the upper 70s to mid 80s.

The high will slide off the coast for Wed night and thu,
maintaining dry wx. A little more humidity returns as ssw flow
starts to dominate again. Lows Wed night 60 to 65, and highs on
thu in the mid to upper 80s.

Long term Thursday night through Monday
Long term period will begin mainly dry Thu night Fri as the
models remain in good agreement with the pattern of high
pressure at the sfc and aloft centered off the mid-atlc se
coast. Highs Fri look to warm into the upper 80s lower 90s with
dew pts increasing to the upper 60s lower 70s. An isolated late
day TSTM possible over the far W and for interior NE nc but have
genly kept pops <15%. A little better chance for rain arrives
sat aftn Sat night as somewhat deeper moisture develops along a
lee trough. Will cap pops at 20-30% in the aftn evening under
partly-mostly sunny skies as any more significant forcing stays
w of the mtns closer to an approaching cold front. Lows mainly
70-75 f with highs again primarily in the upper 80s to lower
90s. Sunday will see a further increase in pops to ~40% by
aftn evening as the cold front gets closer to the local area.

With this several days out will cap pops at 40% for now, but may
raise pops for this in future updates if the timing holds. Mon
will see the front slow or stall across mainly southern portions
of the area with ~40% pops S to 20-30% elsewhere. Lows upper
60s to lower 70s and highs 85-90 f.

Aviation 20z Monday through Saturday
Vfr conditions expected through the 18z TAF forecast. Isolated
or sctd shras and high based CIGS possible Tue aftn into tue
evening, esply at phf orf ecg, as a secondary cold front
crosses the local area. Otherwise,VFR conditions are expected
for much of the week, as sfc high pressure builds over the
region then slides off the coast.

Marine
Generally a quiet pattern through Wed night with a weak pressure gradient,
although there will be a few brief wind shifts W weak frontal passages
early Tue morning and with pressure rises Wed morning as sfc high pressure
builds into the region from the nw. E winds will shift to the sse and increase
a bit this evening but only to 10-15 kt for a few hrs. Weak CAA on Tue will
only bring N NW winds behind the front of 10-15 kt, diminishing by aftn to
5-10 kt. Sfc high pressure returns for Wednesday aftn leading to an aftn sea
breeze 10 kt or less. Waves over the bay only 1-2 ft with seas over the
coastal waters 2-3 ft thru wed. High pressure slides well off the coast
Thursday Friday with return flow resulting in increasing s-sw winds
to 15-20 kt. Waves 2-3 ft on the bay and seas possibly building to 4-
5 ft north of parramore island (genly more like 2-4 ft for southern
coastal waters). A few SCA headlines may be needed late Thu thu night,
but they will be marginal events.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Tmg
near term... Tmg
short term... Alb tmg
long term... Lkb
aviation... Tmg
marine... Lkb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SWPV2 - 8638610 - Sewells Point, VA 1 mi51 min 79°F1016.4 hPa
CRYV2 - 8638595 - South Craney Island, VA 3 mi51 min SSE 8 G 13 81°F 1016.3 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 4 mi51 min SE 12 G 14 79°F 1016.3 hPa
DOMV2 - 8638511 - Dominion Terminal Association, VA 5 mi51 min SE 8 G 8.9 80°F 1016.5 hPa
MNPV2 - 8639348 - Money Point, VA 11 mi51 min SE 5.1 G 8.9 81°F 80°F1016.3 hPa
CBBV2 - 8638863 - Chesapeake Bay Bridge Tunnel, VA 12 mi51 min SSE 6 G 11 78°F 78°F1016.7 hPa
44064 14 mi41 min 12 G 14 77°F 1016.5 hPa
CHYV2 - 8638999 - Cape Henry, VA 18 mi51 min ESE 8.9 G 12 76°F
44072 19 mi41 min SE 12 G 16 77°F
YKTV2 - 8637689 - Yorktown, VA 22 mi51 min SSW 2.9 G 6 82°F 80°F1016.1 hPa
YKRV2 - 8637611 - York River East Rear Range Light, VA 22 mi51 min SSE 14 G 15 76°F 1016.7 hPa
KPTV2 - 8632200 - Kiptopeke, VA 25 mi57 min SSE 11 G 13 77°F
44096 29 mi60 min 73°F1 ft
44041 - Jamestown, VA 30 mi41 min S 5.8 G 7.8 82°F
44099 - Cape Henry, VA (147) 33 mi51 min 73°F1 ft
YRSV2 - Chesapeake Bay,VA 39 mi51 min SW 1 84°F 1017 hPa58°F
44058 - Stingray Point, VA 44 mi41 min S 7.8 G 12 80°F 1016.8 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 45 mi51 min SSE 11 G 11 1017.1 hPa

Wind History for South Craney Island, VA
(wind in knots)    EDIT      (on/off)   Help
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SW7
G10
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SW13
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norfolk, Naval Air Station, VA3 mi82 minESE 810.00 miMostly Cloudy83°F55°F38%1017.3 hPa
Norfolk, Norfolk International Airport, VA8 mi30 minESE 610.00 miOvercast82°F54°F38%1016.4 hPa
Langley Air Force Base, VA11 mi83 minESE 1010.00 miFair82°F59°F46%1017.6 hPa
Newport News, Newport News / Williamsburg International Airport, VA17 mi27 minSSW 610.00 miFair82°F54°F38%1016.2 hPa
Virginia Beach, Oceana, Naval Air Station, VA18 mi25 minESE 710.00 miMostly Cloudy77°F60°F56%1016.8 hPa
Chesapeake, Chesapeake Municipal Airport, VA19 mi26 minSE 71.25 miRain79°F59°F51%1016.6 hPa
Fort Eustis / Felker, VA21 mi83 minSSW 510.00 miFair84°F55°F37%1016.5 hPa
Suffolk, Suffolk Municipal Airport, VA22 mi46 minW 410.00 miFair83°F53°F36%1016.6 hPa

Wind History from NGU (wind in knots)
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Last 24hrE4--CalmCalmNW9W8W5W6NW6NW9N7NW6N5NW6N6N7N7NE5N4NE64E6E8E9
1 day agoSW7SW5SW4S4SW4S4S4SW4SW6W6W5SW3SW4W4W4W4W4N8N8NE11NE9NE3E5E5
2 days agoSW10
G17
SW11
G18
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G18
S11SW12
G21
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G25
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W9W9W7W7NW7W9S4

Tide / Current Tables for Hampton Roads, Virginia
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Hampton Roads
Click for Map
Mon -- 05:46 AM EDT     -0.45 feet Low Tide
Mon -- 05:47 AM EDT     Sunrise
Mon -- 08:38 AM EDT     Moonrise
Mon -- 11:48 AM EDT     2.72 feet High Tide
Mon -- 05:52 PM EDT     -0.34 feet Low Tide
Mon -- 08:28 PM EDT     Sunset
Mon -- 10:47 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.12.71.910.2-0.3-0.4-0.10.51.32.12.62.72.41.81.10.3-0.2-0.3-0.10.61.42.22.8

Tide / Current Tables for Chesapeake Bay Entrance, Virginia Current
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Chesapeake Bay Entrance
Click for Map
Mon -- 01:42 AM EDT     -0.00 knots Slack
Mon -- 05:05 AM EDT     -1.73 knots Max Ebb
Mon -- 05:46 AM EDT     Sunrise
Mon -- 08:16 AM EDT     0.00 knots Slack
Mon -- 08:36 AM EDT     Moonrise
Mon -- 10:35 AM EDT     1.02 knots Max Flood
Mon -- 01:35 PM EDT     -0.00 knots Slack
Mon -- 05:03 PM EDT     -1.65 knots Max Ebb
Mon -- 08:07 PM EDT     0.00 knots Slack
Mon -- 08:27 PM EDT     Sunset
Mon -- 10:45 PM EDT     Moonset
Mon -- 10:52 PM EDT     1.42 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.4-0.2-0.9-1.5-1.7-1.6-1-0.20.5110.70.3-0.2-0.9-1.4-1.7-1.5-0.9-0.10.71.31.4

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 (18,4,5,8)
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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.