Friday, August18, 2017 L-36.com


Marine Weather and Tides
Gloucester Point, 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 6:24AMSunset 7:53PM Friday August 18, 2017 2:10 PM EDT (18:10 UTC) Moonrise 1:55AMMoonset 4:31PM Illumination 13% Phase: Waning Crescent; Moon at 26 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- 120 Pm Edt Fri Aug 18 2017
Rest of today..S winds 10 to 15 kt. Waves 1 to 2 ft. A slight chance of showers.
Tonight..SW winds 10 to 15 kt. Waves 1 to 2 ft. Showers likely in the evening. A chance of tstms until early morning. A chance of showers after midnight.
Sat..N winds 5 to 10 kt...becoming E late. Waves 1 to 2 ft.
Sat night..SW winds 5 to 10 kt. Waves 1 foot.
Sun..NW winds 5 kt...becoming E in the afternoon. Waves 1 foot.
Sun night..S winds 5 kt. Waves 1 foot.
Mon..S winds 5 to 10 kt. Waves 1 foot.
Mon night..S winds 5 to 10 kt. Waves 1 foot.
Tue..S winds 5 to 10 kt. Waves 1 to 2 ft.
Tue night..SW winds 10 to 15 kt. Waves around 2 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ600 120 Pm Edt Fri Aug 18 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 cold front will cross the waters tonight and then stall near the mid atlantic coast through Sunday. High pressure rebuilds over the area early next week. NExt cold front expected to impact the region Wednesday.

7 Day Forecast for Marine Location Near Gloucester Point, VA
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location: 37.25, -76.5     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 181751
afdakq
area forecast discussion
national weather service wakefield va
151 pm edt Fri aug 18 2017

Synopsis
A warm and humid air mass remains in place across the mid-
atlantic states today on continued south flow. The next cold
front will arrive late tonight and exit the region by Saturday
morning. High pressure builds in for Saturday night through
early next week.

Near term until 8 pm this evening
Initial showers that developed early this morning are
dissipating quickly and the low stratus deck that has been
in place for most areas except along coastal areas of the
tidewater and NE nc is quickly dissipating too. As a result the
sun will be coming out and temperatures will quickly jump into
the upper 80s and continue up into the low 90s for most areas.

Ahead of the cold front, seeing lots of clear sky across WRN va
so warming should continue through the afternoon hours. With
dewpoints in the mid 70s to around 80 will see heat indices from
around 100 to 109 across the area. The highest values will be
across SE along the ches bay from the middle peninsula southward
into NE nc. So have issued a heat advisory for that area for the
rest of the afternoon.

Still looks like afternoon convection will form this afternoon
across WRN va and then head ese across the region. The 12z nam
is more enhanced with the convection so will need to monitor for
possible severe as CAPE is now forecast to between 3000 - 4000
j kg. The winds aloft are not extremely strong and the direction
shear is minimal. The mostly likely threat would be wind damage
from downburst.

Short term 8 pm this evening through Sunday
The front slowly pushes southeast early Saturday, and models
have once again trended a bit faster with the frontal passage,
allowing for a quicker end to showers Sat morning.

A strong shortwave trough sweeps across the mid-atlantic states
Saturday night, but it remains north of the area and with the
low level moisture gone, not anticipating much except some mid
level clouds. By Sunday, high pressure will be over the region
with dry and seasonable weather in place.

For temperatures, will continue to see near normal weather with
highs in the upper 80s to around 90 each day and lows in the low
to mid 70s each night except for Saturday night when the drier
air will allow temps to drop into the upper 60s to low 70s.

Long term Sunday night through Thursday
Sfc high pressure builds north of the area with stacked high
pressure residing off the southeast coast through Mon night.

A thermal trough develops in the lee of the appalachians for
tue Tue night, and then a cold front is expected to track
through the area on wed... Exiting the coast late Wed night.

Conditions will become increasingly more humid with each
passing day. Sfc features rather diffuse for mon, however
seabreeze boundaries with the presence of ample moisture will
keep a slight chance for showers storms in the forecast...

primarily for the aftn early evening. Thunderstorm activity
expected to become widely scattered Tue as convection develops
invof lee trough. The frontal passage Wed wed night will
provide a better focus for more organized thunderstorms to
occur. Highs mon-wed generally upper 80s to lower 90s;
low-mid 80s beaches. Lows sun-tue nights generally 70-75f.

Lows Wed night mid-upper 60s NW to 70-75f se.

Aviation 18z Friday through Wednesday
Early morning stratus has burned off with CU developing across
much of the region at 18z. Developing showers tstms SE of korf
should move offshore before 1830z, but have included vcsh there
in the 18z-19z time frame. Radar suggests tstms SE of kecg will
remain far enough SE of the terminal to not be an issue, but
will continue to closely monitor.

A cold front approaching the region this afternoon evening will
initiate shower TSTM development W NW of the area by 21z, then
moving E ese into the region through 03z. The potential for
MVFR ifr conditions exists as tstms will produce heavy
rainfall, but uncertainty of exact timing precludes adding too
much specificity to the 18z tafs. Have added vcts to kphf korf
since hi-res model guidance suggests decent TSTM potential both
terminals after 01z. Expect precipitation to wane after 08z,
leaving generallyVFR conditions for the remainder of the taf
period.

Outlook:VFR conditions returns later Saturday through the
weekend as high pressure builds back into the region. Some
early morning fog possible both Sunday and Monday mornings.

Marine
Latest sfc analysis shows weak high pressure offshore with a cold
front over the oh valley. This front will track east towards the mid
atlc today, with southerly flow increasing ahead of the front as the
pressure gradient increases. By this aftn eveng before the fropa
conditions will be close to SCA criteria over bay due to ~15 kt
sustained winds and northern cstl wtrs due to 4 ft seas. Not
confident enough that SCA conditions will occur to issue headlines
attm. The cold front drops into the wtrs tonight, with shras tstms
psbl and winds waves seas decreasing thereafter. For sat, with the
front weakening in the vicinity, expect winds AOB 10 kt by the aftn
with 1-2 ft waves over the bay and 2-3 ft seas over cstl wtrs.

Similar conditions into Sun with little change in the overall
pattern. Sub-sca conditions will continue into early next week with
weak sfc high pressure in the area.

Akq watches warnings advisories
Md... None.

Nc... Heat advisory until 8 pm edt this evening for ncz013>017-
030>032.

Va... Heat advisory until 8 pm edt this evening for vaz084-089-090-
093-095>098-523>525.

Marine... None.

Synopsis... Mam
near term... Ess mam
short term... Ess mam
long term... Bmd
aviation... Mam wrs
marine... Mas


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YKTV2 - 8637689 - Yorktown, VA 2 mi40 min SSW 5.1 G 9.9 88°F 82°F1011.1 hPa
YKRV2 - 8637611 - York River East Rear Range Light, VA 8 mi40 min SW 8 G 8.9 86°F 1011.8 hPa
44072 13 mi30 min S 1.9 G 3.9 86°F
44041 - Jamestown, VA 15 mi30 min SSW 5.8 G 9.7
YRSV2 - Chesapeake Bay,VA 16 mi40 min S 1 91°F 1012 hPa80°F
DOMV2 - 8638511 - Dominion Terminal Association, VA 20 mi40 min WSW 5.1 G 6 87°F 1011.5 hPa
WDSV2 - 8638614 - Willoughby Deguassing , VA 21 mi40 min W 5.1 G 6 87°F 1011.4 hPa
SWPV2 - 8638610 - Sewells Point, VA 23 mi40 min 82°F1011.4 hPa
44058 - Stingray Point, VA 25 mi30 min SSW 9.7 G 12 84°F 1011.6 hPa
CRYV2 - 8638595 - South Craney Island, VA 26 mi40 min SSW 8.9 G 12 91°F 1011.2 hPa
44064 28 mi30 min 83°F 1011.3 hPa
KPTV2 - 8632200 - Kiptopeke, VA 28 mi40 min S 8.9 G 11 82°F
CBBV2 - 8638863 - Chesapeake Bay Bridge Tunnel, VA 28 mi40 min E 8 G 8 83°F 81°F1011.4 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 33 mi40 min S 13 G 14 1012.2 hPa
MNPV2 - 8639348 - Money Point, VA 34 mi40 min S 5.1 G 7 91°F 83°F1011.1 hPa
CHYV2 - 8638999 - Cape Henry, VA 34 mi40 min SSE 12 G 17 84°F
44099 - Cape Henry, VA (147) 47 mi40 min 80°F2 ft

Wind History for Yorktown USCG Training Center, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newport News, Newport News / Williamsburg International Airport, VA8 mi16 minSSW 1110.00 miFair90°F79°F70%1011 hPa
Fort Eustis / Felker, VA10 mi72 minS 610.00 miA Few Clouds90°F79°F71%1011.5 hPa
Williamsburg-Jamestown Airport, VA11 mi35 minS 710.00 miFair93°F80°F67%1011.8 hPa
Langley Air Force Base, VA14 mi72 minS 89.00 miA Few Clouds90°F79°F72%1012.5 hPa
West Point, Middle Peninsula Regional Airport, VA23 mi35 minS 510.00 miPartly Cloudy89°F76°F66%1011.5 hPa
Norfolk, Naval Air Station, VA24 mi71 minSW 77.00 miA Few Clouds93°F79°F64%1012.2 hPa

Wind History from PHF (wind in knots)
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Last 24hrS9S6E4E7S8S6S6S7S9S8S9S8S6S8S9S7S8SW7S10SW10SW9SW11SW9S8
1 day agoN4E6NE6E7E5E5E3NE3E3CalmCalmCalmS3SW3SW5CalmSW3CalmSW5SW4SW5SW6S7SW9
2 days agoS9NW6NE7E5E4NE4SE4CalmCalmCalmCalmCalmCalmCalmNE3CalmN3N4N6N5N634NE6

Tide / Current Tables for Gloucester Point, York River, Virginia
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Gloucester Point
Click for Map
Fri -- 12:52 AM EDT     0.25 feet Low Tide
Fri -- 02:55 AM EDT     Moonrise
Fri -- 06:25 AM EDT     Sunrise
Fri -- 06:53 AM EDT     2.57 feet High Tide
Fri -- 12:49 PM EDT     0.15 feet Low Tide
Fri -- 05:31 PM EDT     Moonset
Fri -- 07:21 PM EDT     3.19 feet High Tide
Fri -- 07:53 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.30.40.91.422.42.62.41.91.30.70.30.20.40.91.52.32.93.23.12.72.11.4

Tide / Current Tables for Browns Bay, Mobjack Bay, Virginia
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Browns Bay
Click for Map
Fri -- 12:47 AM EDT     0.20 feet Low Tide
Fri -- 02:54 AM EDT     Moonrise
Fri -- 06:24 AM EDT     Sunrise
Fri -- 06:27 AM EDT     2.52 feet High Tide
Fri -- 12:44 PM EDT     0.08 feet Low Tide
Fri -- 05:31 PM EDT     Moonset
Fri -- 07:00 PM EDT     3.16 feet High Tide
Fri -- 07:53 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.20.511.62.22.52.52.21.71.10.50.20.10.411.72.433.232.61.91.2

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 (14,3,4,5)
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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.