Wednesday, October18, 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 7:15AMSunset 6:25PM Wednesday October 18, 2017 4:34 PM EDT (20:34 UTC) Moonrise 4:56AMMoonset 5:10PM Illumination 2% 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- 303 Pm Edt Wed Oct 18 2017
Through 7 pm..NE winds 5 kt. Waves 1 foot.
Tonight..E winds 5 kt. Waves 1 foot.
Thu..NE winds 5 kt...becoming nw early in the afternoon, then becoming S late. Waves 1 foot.
Thu night..SW winds 5 kt...becoming W late. Waves 1 foot.
Fri..N winds 5 to 10 kt. Waves 1 to 2 ft.
Fri night..N winds 5 kt. Waves 1 foot.
Sat..NE winds 5 kt. Waves 1 foot.
Sat night..SE winds 5 kt. Waves 1 foot.
Sun..E winds 5 kt...becoming se in the afternoon. Waves 1 foot.
Sun night..S winds 5 to 10 kt. Waves 1 foot.
Mon..SE winds 5 to 10 kt. Waves 1 to 2 ft.
ANZ652 Coastal Waters From Chincoteague To Parramore Island Va Out 20 Nm- 303 Pm Edt Wed Oct 18 2017
Through 7 pm..E winds 5 kt. Seas 3 to 4 ft...mainly se swell with a dominant period of 10 seconds.
Tonight..SE winds 5 kt. Seas 2 to 3 ft...mainly se swell with a dominant period of 10 seconds.
Thu..S winds 5 kt. Seas 2 to 3 ft...mainly se swell with a dominant period of 9 seconds.
Thu night..W winds 5 to 10 kt. Seas 2 to 3 ft... Mainly se swell with a dominant period of 9 seconds.
Fri..NW winds 5 to 10 kt. Seas 2 to 3 ft... Mainly se swell with a dominant period of 9 seconds.
Fri night..N winds 5 to 10 kt. Seas 2 to 3 ft.
Sat..NE winds 5 kt. Seas 2 to 3 ft.
Sat night..SE winds 5 kt. Seas 2 to 3 ft.
Sun..SE winds 5 kt. Seas around 2 ft.
Sun night..S winds 5 to 10 kt. Seas around 2 ft.
Mon..S winds 5 to 10 kt. Seas 2 to 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 181919
afdakq
area forecast discussion
national weather service wakefield va
319 pm edt Wed oct 18 2017

Synopsis
High pressure remains over the mid atlantic region through
the weekend with temperatures gradually warming. Next cold front
expected to impact the region early next week.

Short term tonight through Friday night
Sfc high pressure remains over near the area through Fri night.

Main changes in the short term periods will be in the mid-upper
levels. An upper trough crosses the midwest ohio valley through
tonight and then passes through the region Thu thu night... While
mid level ridging flattens into w-nw flow during this timeframe.

The end result will be scattered cirrus streaming overhead late
tonight into Thu with the passing through. Mid-upper level
ridging re- establishes itself and amplifies over the eastern
half of the u.S. Fri fri night. Otherwise, weather remains dry
with a very slow warming trend despite temps being near normal.

Highs Thu generally 70-75f and Fri in the low-mid 70s. Lows
tonight in the lower 40s inland mid 40s to lower 50s near the
coast. Lows Thu Fri nights generally 45-49f NW to 55-59f se.

Long term Saturday through Wednesday
Sfc high pressure slides off the new england coast Sat and
continues to push ewd into early next week. Ridge axis
associated with this feature will remain over the local area
through most of Sun before moving offshore. Meanwhile, mid-upper
level ridge axis remains centered along the east coast from the
mid atlantic to the southeast through at least Sun before
shifting ewd offshore. A deep upper level trough spans the
length of the mississippi river from the upper midwest to the
gulf coast states sun... Becoming separated from its parent low
(near WRN hudson bay in canada) by Sun night. Sfc cold front
linking the separated upper lows to cross the midwest Sun sun
night, ohio valley Mon mon night, and eventually cross the mid
atlantic region Tue tue night. Overall forecast is dry until mon
into Tue night with lingering showers possible wed.

Thunderstorms may also be possible Mon aftn based on current
arrival of precip, however this could change if the upper trough
digs deeper and delays onset of precip into Mon night.

Temperatures will be around 5-10 degrees above normal sat-mon
night. Expect highs in the 70s. Lows will warm from the
lower 50s most areas Sat night (mid- upper 50s beaches) to the
lower 60s by Mon night. Highs closer to normal (69-75f) on tue
with widespread rain present. A much colder canadian airmass
moves into the area behind the cold front beginning Tue night.

Decent cold air advection paired with a tight pressure gradient
will likely allow dewpoints to plummet while temperatures are
slower to fall respond. Lows Tue night in the upper 40s to
lower 50s inland and mid to upper 50s closer to the coast. Highs
wed around 5-10 degrees below normal with readings in the
lower 60s inland and in the mid 60s far SE va coastal NE nc.

Aviation 19z Wednesday through Monday
Surface high pressure remains over near the area through fri
night. An upper trough crosses the midwest ohio valley through
tonight and then passes through the region Thu thu night... While
mid level ridging flattens into w-nw flow during this timeframe.

The end result will be sct cirrus streaming overhead late
tonight into Thu with the passing through, and additional sct
altocumulus or altostratus developing near far SE va NE nc
coastal areas where ene winds persist on thu. Stacked high
pressure holds strong Fri into the weekend. Dry weather andVFR
conditions will prevail the rest of today through Sun night.

Next weather system expected to impact the region Mon tue.

Marine
A large area of high pressure remains centered over the mid
atlantic states this afternoon. The axis of the ridge stretches
farmville to just south of wallops island. South of this line
seeing generally NE flow and north of the line the flow is more
swly. But in all cases the winds are generally light, less than
10 kt. With the lighter winds, the seas are also generally a
foot or less on the bay and 2-3 ft on the ocean.

This strong high pressure system will remain entrenched across
the region on Thursday with light winds and the benign seas. A
cold front will slide across the region on Friday morning with a
wind switch to the NW and increase in speed to 10-15 kt with
seas also increasing to 1-2 ft on the by and 2-4 ft on the ocean
waters. However the bump up in winds will be temporary as the
strong surface high reestablishes its control over the region
for Saturday and Sunday with a return to benign conditions over
the area waters.

The next chance for significant weather over the waters does not
come until early next week as a strong cold front slowly moves
across the region late Monday into Tuesday. Expect an increase
in sly winds ahead of the front and strong nwly winds behind the
front.

Equipment
The kakq radar will be down through Wednesday, october 18th for
radome repairs.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Bmd
short term... Bmd
long term... Bmd
aviation... Bmd
marine... Ess
equipment... Akq


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SWPV2 - 8638610 - Sewells Point, VA 1 mi46 min 70°F1027.4 hPa
CRYV2 - 8638595 - South Craney Island, VA 3 mi46 min NE 7 G 11 65°F 1027 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 4 mi52 min ENE 8 G 8.9 63°F 1027.4 hPa
DOMV2 - 8638511 - Dominion Terminal Association, VA 5 mi46 min ENE 7 G 9.9 64°F 1027.7 hPa
MNPV2 - 8639348 - Money Point, VA 11 mi46 min ESE 5.1 G 7 68°F 71°F1026.8 hPa
44064 14 mi34 min 5.8 G 7.8 63°F 69°F1 ft1027.5 hPa (-1.6)
CHBV2 16 mi52 min ENE 4.1 G 6 65°F 70°F1026.5 hPa
CHYV2 - 8638999 - Cape Henry, VA 18 mi46 min E 5.1 G 8 64°F
44072 19 mi34 min Calm G 1.9 65°F 70°F
YKTV2 - 8637689 - Yorktown, VA 22 mi46 min E 8 G 9.9 63°F 70°F1027.2 hPa
YKRV2 - 8637611 - York River East Rear Range Light, VA 22 mi46 min ENE 1.9 G 1.9 63°F 1028.2 hPa
KPTV2 - 8632200 - Kiptopeke, VA 25 mi46 min ESE 5.1 G 7 67°F
44096 29 mi43 min 70°F3 ft
44041 - Jamestown, VA 30 mi34 min SE 1.9 G 5.8 71°F
44099 - Cape Henry, VA (147) 33 mi64 min 70°F3 ft
YRSV2 - Chesapeake Bay,VA 39 mi64 min E 1.9 69°F 1029 hPa42°F
WAHV2 - 8631044 - Wachapreague, VA 59 mi46 min S 4.1 G 6 64°F 64°F1027.5 hPa
44014 - VIRGINIA BEACH 64 NM East of Virginia Beach, VA 83 mi44 min NE 9.7 G 12 64°F 68°F4 ft1027.2 hPa (-1.5)52°F

Wind History for South Craney Island, VA
(wind in knots)    EDIT      (on/off)   Help
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Last
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NE11
NE8
G12
NE5
G8
NE6
N4
NW2
NW2
W3
W3
W3
W3
W2
W2
NW4
NE7
N6
NE6
NE9
NE10
E7
G12
E5
NE6
G9
NE7
G11
NE8
1 day
ago
N17
G21
N17
G23
N17
G22
N15
G20
N16
G20
N18
G22
N14
G19
N16
G22
N17
G22
N17
G22
N15
G21
N14
G20
N14
G22
NE14
G19
NE17
G21
NE16
G22
NE15
G20
N18
N20
N18
N13
G16
NE15
NE13
G16
N10
G15
2 days
ago
S10
G14
S10
G13
S7
S12
G16
SW11
G15
S12
G15
SW9
G14
SW9
G12
SW9
G13
SW8
G11
SW9
G13
SW10
G13
SW8
G12
SW6
G9
SW6
G9
N8
G12
N15
G20
N13
G19
N15
G19
N15
G19
N12
G16
N13
G19
N18
G22
N18
G22

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norfolk, Naval Air Station, VA3 mi95 minENE 810.00 miA Few Clouds66°F46°F50%1028 hPa
Norfolk, Norfolk International Airport, VA8 mi43 minNE 910.00 miFair67°F46°F47%1027.1 hPa
Langley Air Force Base, VA11 mi38 minESE 59.00 miFair66°F46°F49%1028.1 hPa
Newport News, Newport News / Williamsburg International Airport, VA17 mi40 minE 510.00 miFair66°F46°F49%1027.4 hPa
Virginia Beach, Oceana, Naval Air Station, VA18 mi38 minE 410.00 miA Few Clouds65°F44°F47%1027.2 hPa
Chesapeake, Chesapeake Municipal Airport, VA19 mi39 minENE 37.00 miFair67°F44°F44%1027.1 hPa
Fort Eustis / Felker, VA21 mi36 minS 410.00 miFair69°F45°F43%1026.7 hPa
Suffolk, Suffolk Municipal Airport, VA22 mi39 minE 410.00 miFair70°F45°F41%1027.4 hPa

Wind History from NGU (wind in knots)
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Last 24hrNE9N6NE3NE33333CalmCalmCalmCalmCalmCalmCalmCalmNE6NE10E96E5E8E8NE7
1 day agoN16
G22
N15
G25
N18
G27
N14
G25
N15
G25
N17
G28
N17
G23
N18
G23
N16
G24
N15
G20
N16
G21
N15
G20
NE12
G21
NE13N14
G20
NE13
G21
NE16
G20
N15
G24
N17
G23
N16
G22
N12N13
G19
N14NE9
2 days agoSW9S7S5S8S7
G16
S8
G15
SW10SW9SW7SW5SW8SW10
G27
SW8SW8SW5N17
G21
N10
G18
N14
G21
N17
G24
N13
G20
N16
G20
N14
G20
N11N13
G20

Tide / Current Tables for Sewells Point, Hampton Roads, Virginia
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Sewells Point
Click for Map
Wed -- 02:32 AM EDT     0.06 feet Low Tide
Wed -- 05:56 AM EDT     Moonrise
Wed -- 07:16 AM EDT     Sunrise
Wed -- 08:47 AM EDT     3.10 feet High Tide
Wed -- 03:00 PM EDT     0.08 feet Low Tide
Wed -- 06:10 PM EDT     Moonset
Wed -- 06:24 PM EDT     Sunset
Wed -- 09:08 PM EDT     2.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.50.10.10.51.11.92.533.12.82.31.50.80.30.10.30.81.52.12.72.92.82.3

Tide / Current Tables for Chesapeake Bay Entrance, Virginia Current
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Chesapeake Bay Entrance
Click for Map
Wed -- 02:14 AM EDT     -1.38 knots Max Ebb
Wed -- 05:08 AM EDT     0.00 knots Slack
Wed -- 05:54 AM EDT     Moonrise
Wed -- 07:14 AM EDT     Sunrise
Wed -- 07:39 AM EDT     1.02 knots Max Flood
Wed -- 11:04 AM EDT     -0.00 knots Slack
Wed -- 02:37 PM EDT     -1.49 knots Max Ebb
Wed -- 05:40 PM EDT     0.00 knots Slack
Wed -- 06:09 PM EDT     Moonset
Wed -- 06:22 PM EDT     Sunset
Wed -- 08:03 PM EDT     0.87 knots Max Flood
Wed -- 11:22 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-1.1-1.4-1.3-0.8-0.10.6110.80.50-0.6-1.1-1.4-1.5-1.1-0.50.20.70.90.80.60.2

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 (16,3,4,5)
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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.