Friday, January19, 2018 L-36.com


Marine Weather and Tides
Rustburg, 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 7:26AMSunset 5:28PM Friday January 19, 2018 6:33 AM EST (11:33 UTC) Moonrise 9:01AMMoonset 8:00PM 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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7 Day Forecast for Marine Location Near Rustburg, VA
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location: 37.18, -79.05     debug


Area Discussion for - Blacksburg, VA
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Fxus61 krnk 191110
afdrnk
area forecast discussion
national weather service blacksburg va
610 am est Fri jan 19 2018

Synopsis
High pressure over the lower mississippi valley will move east
across the gulf coast states today and tonight. Low pressure will
develop in the central plains on Sunday then track into the great
lakes by Tuesday. This system will push a cold front through the
area on Monday night and Tuesday.

Near term through tonight
As of 330 am est Friday...

clear sky and dry air mass expected over southwest virginia,
southeast west virginia and northwest north carolina today and
tonight. Surface high pressure will pass to the south of the region
tonight. A 30 to 40 knot west low level jet will result in gusty
winds today. Enough mixing tonight to prohibit excessive temperature
drop. Stayed a little warmer than guidance for lows tonight on the
higher ridges. Went slightly below guidance over the snow cover in
the south.

Short term Saturday through Monday night
As of 340 am est Friday...

the upper pattern will feature an eastern ridge western trof through
the weekend, establishing a trend to breezy conditions and temperatures
well above normal. Saturday looks like a fair weather day, but by
Saturday night moisture and isentropic lift associated with a warm
front extending from a low developing over the rockies will bring a
chance of showers to locations west of the blue ridge. Some wet
snowflakes may mix in at the higher elevations before the chance for
showers gradually decreases from south to north on Sunday as the warm
front pushes through. The first part of Monday looks to be mostly dry
but the chance for showers will be increasing in the mountains later in
the day as a strong cold front approaches from the west.

The cold front has a good deal of dynamic support, being driven by low
pressure moving through the great lakes and a vigorous closed low
moving through the ohio valley. The front is expected to be accompanied
by widespread rainfall though lapse rates are not impressive and
surface based instability is largely absent so chances for thunder look
quite low. However, the low level wind field amplifies considerably and
there is a good amount of shear with the front so this could become a
qlcs scenario where embedded convective elements can mix down strong
wind gusts without thunderstorms. QPF does not appear excessive but
downpours may cause local hydro issues. Will be watching this situation
closely to see how it evolves in later model runs.

Long term Tuesday through Thursday
As of 130 pm est Thursday...

temperatures will decrease behind the front on Tuesday, though readings
will still remain above normal for this time of year heading through
the middle part of the week.

Our next chance for precipitation will be a small one Wednesday night
into Thursday as a weak disturbance passes through fl ga sc. Otherwise,
dry weather is expected as another area of high pressure builds into
the region.

Aviation 11z Friday through Tuesday
As of 605 am est Thursday...

vfr to prevail under a clear sky through the TAF forecast period.

Models and NAM rap bufkit soundings showed a 30 to 40 knot low
level jet today and tonight. These stronger winds above the
surface inversion may result in low level wind shear in spots
for a few hours until mixing begins this morning and again after
sunset when surface winds diminish. Wind gusts this afternoon
will be from 20 to 30 knots, especially at higher elevations.

Extended discussion...

high pressure will cover the region Saturday through Sunday.

Vfr conditions are expected as well as warming temperatures.

Moisture will return to the west Sunday night into Monday night
with sub-VFR conditions possible in low clouds and rain
showers ahead of another cold front.VFR conditions return
during Tuesday as weak high pressure follows the front in from
the west.

Equipment
As of 245 pm est Thursday...

noaa weather radio, wxl60 (roanoke transmitter) which broadcasts at
162.475 mhz remains off the air. The phone company continues to
investigate and no estimated time has been given for restoring
this. We apologize for the outage.

Rnk watches warnings advisories
Va... None.

Nc... Winter weather advisory until noon est today for ncz001>006-
018>020.

Wv... None.

Synopsis... Ams
near term... Ams
short term... mbs
long term... Ds
aviation... AMS jh
equipment... Wp


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lynchburg, Lynchburg Regional Airport, VA14 mi39 minS 310.00 miFair23°F9°F55%1021 hPa

Wind History from LYH (wind in knots)
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Last 24hrNW4W3SW3S4W56W7
G16
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W5SW6SW6SW4SW3S7S5CalmSW5CalmS6SW6S3CalmS3
1 day agoN54N7N6N6N7N5N8
G15
N9NE6NE5NE5CalmCalmCalm4NW7NW7
G14
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CalmNW6NW75NW4
2 days agoCalmCalmCalmS8S4S64S3CalmS5CalmCalmCalmCalmCalmCalmCalmCalmNW3CalmN64N5N5

Tide / Current Tables for Falling Creek entrance, James River, Virginia
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Falling Creek entrance
Click for Map
Fri -- 12:15 AM EST     -0.18 feet Low Tide
Fri -- 05:24 AM EST     2.82 feet High Tide
Fri -- 07:21 AM EST     Sunrise
Fri -- 08:54 AM EST     Moonrise
Fri -- 12:12 PM EST     -0.16 feet Low Tide
Fri -- 05:19 PM EST     Sunset
Fri -- 05:31 PM EST     3.10 feet High Tide
Fri -- 07:53 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-00.71.72.42.82.82.41.71.10.50-0.2-00.61.72.633.12.72.11.40.80.2

Tide / Current Tables for Petersburg, Appomattox River, James River, Virginia
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Petersburg
Click for Map
Fri -- 12:23 AM EST     -0.10 feet Low Tide
Fri -- 05:17 AM EST     2.53 feet High Tide
Fri -- 07:20 AM EST     Sunrise
Fri -- 08:54 AM EST     Moonrise
Fri -- 12:19 PM EST     -0.09 feet Low Tide
Fri -- 05:20 PM EST     Sunset
Fri -- 05:25 PM EST     2.78 feet High Tide
Fri -- 07:53 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-00.61.52.22.52.52.11.610.50.1-0.1-00.51.52.42.72.72.41.91.30.80.3

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 Blacksburg, VA (6,6,7,8)
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Ground Weather Radar Station Blacksburg, 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.