Wednesday, July26, 2017 L-36.com


Marine Weather and Tides
Montrose, 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 6:08AMSunset 8:24PM Wednesday July 26, 2017 12:44 AM EDT (04:44 UTC) Moonrise 8:39AMMoonset 9:43PM Illumination 7% 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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ANZ636 York River- 945 Pm Edt Tue Jul 25 2017
Overnight..E winds 5 to 10 kt. Waves 1 foot.
Wed..E winds 10 kt. Waves 1 foot.
Wed night..S winds 5 to 10 kt. Waves 1 foot.
Thu..S winds 5 to 10 kt. Waves 1 foot.
Thu night..SW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of tstms until early morning. A chance of showers.
Fri..S winds 5 to 10 kt. Waves 1 to 2 ft. A chance of tstms. Showers likely.
Fri night..SW winds 10 to 15 kt...becoming nw 5 to 10 kt after midnight. Waves 1 foot. A chance of tstms. Showers likely, mainly in the evening.
Sat..NW winds 5 to 10 kt...becoming N 10 to 15 kt in the afternoon. Waves 1 to 2 ft. A chance of showers. A chance of tstms in the afternoon.
Sat night..NE winds 10 to 15 kt. Waves 2 to 3 ft...subsiding to 1 foot after midnight. A chance of showers and tstms in the evening.
Sun..NE winds 10 to 15 kt. Waves 1 foot. Winds and waves higher and visibilities lower in and near tstms.
ANZ600 945 Pm Edt Tue Jul 25 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 stalls south of the region tonight as high pressure builds across the northeast. High pressure slides offshore Thursday ahead of an approaching cold front. The cold front slowly pushes across the region Friday night into Saturday. High pressure slowly builds in from the west through early next week.

7 Day Forecast for Marine Location Near Montrose, VA
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location: 37.53, -77.42     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 260210
afdakq
area forecast discussion
national weather service wakefield va
1010 pm edt Tue jul 25 2017

Synopsis
A weak frontal boundary will remain south of the area overnight
into Wednesday, as high pressure slides off the northeast
coast. The next low pressure system affects the region late
Thursday through at least Friday night.

Near term until 6 am Wednesday morning
Late this evening, a frontal boundary was well south of the
region over the carolinas, and high pressure was cntrd over wrn
ny. The cntr of the high will slide ewrd and should maintain dry
wx and more comfortable temps overnight. The NE sfc flow will
bring some more clouds down into NE counties, but otherwise,
expect a clear to partly cloudy sky. Lows will range fm the mid
60s to near 70.

Short term 6 am Wednesday morning through Friday
Dry wx continues for the beginning of the short term period with
the aforementioned sfc high sliding off the NE coast and
onshore flow continuing with the front weakening south of the
area. There is a very small chance of a shra over eastern areas,
but the chance is not high enough to include mention in the
forecast ATTM so will re-evaluate with future updates. Another
day of below normal temps with highs only in the low mid 80s.

Attention then turns Thu to an approaching potent mid-level
shortwave trough and associated sfc low. Expect dry wx thu
morning, with pops increasing later in the day to 30-40%
along west of i95 late aftn early eveng in association with a
lead shortwave aloft and sfc prefrontal trough. Chances of rain
then further increase into Thu night to chance-likely pops
everywhere as the main sfc low cold front approach the mid atlc.

Spc has included the entire fa in a slight risk for severe
storms, with the main threat being damaging wind gusts. This
threat may continue into Thu night, and potentially Fri with the
area still in the warm sector, and strong deep layer shear and
shortwave energy aloft for late july. Heavy rain is also psbl
with the strong forcing and high pwat. Will include mention in
the hwo. Bumped up pops to 60% everywhere fri.

Long term Friday night through Tuesday
Potent shortwave progged to dig into the mid-atlantic region Friday
night into Saturday, before de-amplifying and pushing offshore
Saturday. An associated cold front pushes offshore Saturday morning.

Have kept high end chance pops central virginia eastward Friday
night as the front pushes across the region. Low pressure forecast
to develop along the frontal boundary as the strongest height falls
spread across the region. The low lifts along the northeast coast
Saturday as the front stalls along the southeast coast. Lingering
mid-level moisture and the shortwave pushing across the region will
keep slight chance to chance pops Saturday afternoon. Cooler behind
the front, with highs generally in the mid 80's. An upper level
trough remains over the eastern us through early next week, as a
ridge of high pressure remains entrenched over the western atlantic.

High pressure slowly builds in from the midwest Sunday and Monday as
the front stalls along the southeast coast. The GFS keeps the
moisture farther offshore, but the ECMWF hugs the coast, developing
a wave of low pressure off the carolina coast. Have kept slight
chance to low end chance pops across the far southeast forecast area
Sunday and Monday. Highs Sunday and Monday generally in the mid
80's. Medium range guidance indicates the subtropical high over the
western atlantic may retrograde slightly Tuesday, which could push
the coastal front inland. Have introduced low end pops Tuesday as a
result. Warmer, with highs in the mid to upper 80's, but still
relatively comfortable this time of year with dewpoints in the low
to mid 60's.

Aviation 02z Wednesday through Sunday
Vfr conditions through the TAF period. Sky should be generally
clear or with a few scattered clouds tonight. Winds will be
ne E overnight and wed. Some patchy fog may occur on the
eastern shore tonight but there is no confidence whether sby
will be adversely affected.

Outlook: primarilyVFR conditions expected through thu. A cold
front approaches the area late Thursday into Friday bringing the
threat for showers and thunderstorms. Showers and thunderstorms
may linger into Saturday, but drier conditions arrive for the
second half of the weekend.

Marine
Latest surface analysis places a cold front south of the local
waters with high pressure over the great lakes. A weak area of low
pressure is centered just offshore the mid-atlantic coast. Obs
indicate a north to northeast wind of 10 to 15 knots. Seas generally
2-3 feet and waves 1-2 feet. Gradient winds diminish tonight as low
pressure pushes away from the coast and high pressure builds across
the northeast, but some modest cold advection will keep speeds
around 10-15 knots. An onshore flow of 10-15 knots Wednesday will
push seas to 3-4 feet. Waves generally 2 feet. High pressure slides
offshore Wednesday night ahead of an approaching cold front. Flow
becomes southerly, and increases to 10-20 knots Thursday afternoon
as the gradient strengthens. Marginal SCA conditions are possible.

The front stalls near the coast Thursday night into Friday, before
an upper level disturbance pushes the front offshore Friday night.

Expect a west to southwest wind Friday at 10-15 knots, with marginal
sca conditions possible ahead of the front Friday evening. Flow
becomes north to northwest 10-20 knots behind the front Friday
night. Strong cold advection and strong pressure rises expected late
Saturday and Saturday night as low pressure deepens along the mid-
atlantic and northeast coast. The result will be solid sca
conditions over the waters, with the potential for low end gale
conditions over the upper bay and northern coastal waters. The front
stalls along the southeast coast through early next week as high
pressure slowly builds in from the west. A north to northeast wind
at or below 15 knots is expected through early next week.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Mas
near term... Mas tmg
short term... Mas
long term... Sam
aviation... Ajb jef
marine... Sam


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
YRSV2 - Chesapeake Bay,VA 38 mi75 min NNE 2.9 75°F 1022 hPa67°F
44041 - Jamestown, VA 40 mi35 min ENE 3.9 G 5.8
YKTV2 - 8637689 - Yorktown, VA 54 mi45 min SE 6 G 8 76°F 82°F1021.1 hPa (+1.1)

Wind History for Yorktown USCG Training Center, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Richmond, Richmond International Airport, VA6 mi51 minN 310.00 miA Few Clouds71°F63°F76%1022.3 hPa
Ashland, Hanover County Municipal Airport, VA12 mi51 minN 010.00 miMostly Cloudy71°F60°F68%1022.3 hPa
Petersburg, Dinwiddie County Airport, VA24 mi50 minN 010.00 miFair65°F60°F85%1022 hPa

Wind History from RIC (wind in knots)
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Last 24hrW5W6N7N7N7N7N8N12N9N11N8N9N76
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1 day agoE3S3SW9S8S6S7SW8SW6SW9SW9W9W86SW7W8SW66W6SW7S6SW6SW6SW5W7
2 days agoW5SW19
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W8SW6SW7CalmS3SW4SW9W8W6W7NW8W4W9SW9SW12
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Tide / Current Tables for Richmond (river locks), James River, Virginia
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Richmond (river locks)
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Wed -- 02:21 AM EDT     0.08 feet Low Tide
Wed -- 06:08 AM EDT     Sunrise
Wed -- 07:22 AM EDT     4.00 feet High Tide
Wed -- 09:39 AM EDT     Moonrise
Wed -- 02:54 PM EDT     -0.06 feet Low Tide
Wed -- 07:56 PM EDT     3.79 feet High Tide
Wed -- 08:22 PM EDT     Sunset
Wed -- 10:43 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.50.10.21.12.43.543.93.42.71.91.30.70.2-0.10.41.62.83.53.83.52.92.2

Tide / Current Tables for Richmond Deepwater Terminal, James River, Virginia
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Richmond Deepwater Terminal
Click for Map
Wed -- 01:47 AM EDT     0.05 feet Low Tide
Wed -- 06:09 AM EDT     Sunrise
Wed -- 06:55 AM EDT     4.19 feet High Tide
Wed -- 09:39 AM EDT     Moonrise
Wed -- 02:19 PM EDT     -0.10 feet Low Tide
Wed -- 07:28 PM EDT     3.98 feet High Tide
Wed -- 08:22 PM EDT     Sunset
Wed -- 10:42 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.70.20.10.71.93.13.94.23.93.22.41.60.90.3-0.10.11.12.33.43.93.93.42.72

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 (0,6,7,8)
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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.