Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Middleburg, NC

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:28AMSunset 7:55PM Sunday April 22, 2018 2:06 PM EDT (18:06 UTC) Moonrise 11:17AMMoonset 12:53AM Illumination 49% Phase: First Quarter Moon; Moon at 7 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 Middleburg, NC
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location: 36.52, -78.34     debug


Area Discussion for - Raleigh, NC
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Fxus62 krah 221520
afdrah
area forecast discussion
national weather service raleigh nc
1120 am edt Sun apr 22 2018

Synopsis
High pressure will extend south through the mid atlantic states
today. Low pressure will track slowly eastward over the lower
mississippi valley and mid south region before tracking northeast
over the east coast through midweek.

Near term today and tonight
As of 950 am Sunday...

quiet day overall ahead of the unsettled weather to start the work
week. High pressure continues to build in from the north with
shortwave ridging in the mid levels, as a surface frontal zone sits
well to our south, allowing for stable air and dry low-mid levels
over nc. A weakening wave ejecting out of the base of the mid level
low over ok ar will sweep NE over nc later today through tonight,
and corresponding high clouds will slowly increase and thicken from
sw to ne, with a deck of mid clouds in SW sections. This is
reflected well in the rap-adjusted sky cover forecasts through
tonight, with a trend to partly (ne) to mostly (sw) cloudy. Observed
morning thicknesses were about 15 m below normal, so have kept highs
around a category below normal, 70-74. -gih
earlier discussion from 220 am: surface high pressure will get
reinforced as it extends down the eastern seaboard into nc this
afternoon and tonight. This occurs as the cut off mid upper low
tracks slowly east toward the mid-mississippi valley. Expect
increasing high level cloudiness today. Highs are expected to reach
near normal, with lower to mid 70s at most locations. A light and
mostly easterly wind 5-10 mph is expected. The cloudiness will
gradually lower and thicken tonight, reaching the far NE zones late.

Lows generally in the 45-50 range ne, and lower to mid 50s
elsewhere.

Short term Monday and Monday night
As of 241 am edt Sunday...

the center of the high is expected to slowly drift SE and off the
new england coast late Monday. The ridge axis will extend SW into
the western part of va nc Monday and Monday night. As the mid upper
level low pressure east toward the tn valley region Monday, it is
forecast to slowly turn more NE toward central ky by 12z Tuesday.

Rain is expected to become widespread over western and southern
parts of central nc Monday morning, slowly spreading over the rest
of the region Monday afternoon. Highs will hold in the 50s west,
ranging to near 70 in the coastal plain (last area to see rain).

The strong, deep, and long fetch of sub-tropical moisture is
expected to be tapped from the caribbean and western atlantic and
pulled NW into the system, courtesy of the circulation around the
strong high pressure to the north, and low pressure to the west
Monday night. Rain should become heavy, with local minor flooding
possible.

Some model solutions depict strong convection in the gulf stream off
of sc nc, potentially disrupting some of the moisture flux. However,
most model solutions still depict 0.5 to 1 inch of rain at a minimum
over central nc, with some models as robust as 2-3 inches in the
western, more upslope, piedmont region. Therefore, we expect plenty
of rain late Monday and Monday night, with increasing winds from the
east at 15-25 mph, with gusts to 30-35 mph (windy). Temperatures
should hold steady or slowly rise with the strong flow off the
atlantic. Readings in the lower 60s se, 50s nw.

The severe threat really looks very minimal for all of our region as
cad will develop over the piedmont late Monday and Monday night,
rain will be widespread over all the region - ensuring no surface
destabilization through 12z Tuesday at least, if not beyond.

Long term Tuesday through Saturday
As of 355 am edt Sunday...

the main area of heavier precip will begin to lift to the north on
Tuesday into Tuesday night as a surface low lifts northeastward
across south southeastern portions of the area, and a dry punch
surges into the area from the south southwest. This will allow
rain showers (along with some isolated storms) to decrease in
coverage (especially by early Wednesday morning) with the main
mid upper low expected to weaken open and track across the mid-
atlantic region. However, we will likely see the cad boundary
retreat into our area in advance of the weak triple point surface
low on Tuesday. This may allow for at least a small potential for
some strong storms across our far southeastern locations on Tuesday
afternoon, though the strongest low level flow should be waning by
then. High temps Tuesday will be tricky thanks to the cad boundary
across the area. Will go with highs ranging from the mid to upper
50s in the NW to the mid 70s se. Lows Wednesday morning are expected
to be in the mid to upper 50s.

Broad troughing across the eastern u.S. Will allow for a continued
threat of S W energy passing through the trough and across the area
through the end of the week into early next weekend. Thus, will
continue to keep a low end chance slight chance of showers in the
remainder of the medium range forecast, with high temps generally
near to slight below normal (high temps in the 60s and 70s). Low
temps are expected to be in the 40s and 50s.

Aviation 18z Sunday through Friday
As of 1120 am Sunday...

vfr conditions are likely through much of tonight, as surface high
pressure noses into nc from the n. But high and mid clouds will
steadily thicken with lowering bases late today through tonight,
ahead of a slow-moving deep low pressure system crossing the mid and
lower miss valley. MVFR CIGS are expected after 06z tonight in the
sw part of the forecast area toward clt, and CIGS are likely to drop
to MVFR at int gso after 10z late tonight early mon. Vsbys are also
expected to drop to MVFR at int gso after 13z Mon with rain
spreading in from the wsw. After 15z mon, ifr conditions are
possible at int gso with MVFR at rdu. Surface winds will increase
from the SE and become gusty late tonight and through mon,
particularly over S and W sections (including int gso fay), with
stronger and shifting winds with height, potentially resulting in
handling difficulties with smaller aircraft starting early mon.

Looking beyond 18z mon: poor aviation conditions will dominate all
sites through Tue as a strong and slow-moving storm system crosses
the area. Periods of showers and sub-vfr conditions are likely. On
tue, fay and perhaps rdu rwi may see some breaks in the sub-vfr
conditions with a risk of storms. Rain should taper off Tue night
but sub-vfr stratus fog may linger into Wed morning.VFR conditions
should return wed, although a few showers are possible wed
afternoon, and again Thu into fri, as a series of upper level
troughs cross the region, bringing unsettled weather and perhaps
brief periods of sub-vfr conditions. -gih

Rah watches warnings advisories
Nc... None.

Synopsis... Hartfield
near term... Hartfield badgett
short term... Badgett
long term... Bsd
aviation... Hartfield


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Henderson-Oxford Airport, NC15 mi71 minSSW 310.00 miFair64°F37°F38%1027.4 hPa
South Hill, Mecklenburg-Brunswick Regional Airport, VA19 mi71 minSE 410.00 miFair66°F42°F43%1029.5 hPa

Wind History from HNZ (wind in knots)
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Last 24hrN3CalmSW6CalmCalmCalmE3E3SE5SE3SE4S3S4SE4S3S3S4CalmS3S5S6S5SW6SW5
1 day agoN4W3CalmNW5N6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN4NE4E6N3CalmW4
2 days agoNW15
G25
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NW10NW7NW11NW5NW5NW3NW3CalmW3W3W3W4NW7N3NW6N5NW7N6

Tide / Current Tables for Petersburg, Appomattox River, James River, Virginia
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Petersburg
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Sun -- 01:51 AM EDT     Moonset
Sun -- 04:39 AM EDT     0.46 feet Low Tide
Sun -- 06:25 AM EDT     Sunrise
Sun -- 09:38 AM EDT     3.47 feet High Tide
Sun -- 12:11 PM EDT     Moonrise
Sun -- 05:38 PM EDT     0.34 feet Low Tide
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:50 PM EDT     Sunset
Sun -- 10:33 PM EDT     3.13 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.71.20.80.50.50.91.82.83.43.43.22.72.11.51.10.70.40.40.91.82.73.13.1

Tide / Current Tables for Puddledock Sand
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Puddledock Sand & Gravel
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Sun -- 01:51 AM EDT     Moonset
Sun -- 04:00 AM EDT     0.14 feet Low Tide
Sun -- 06:25 AM EDT     Sunrise
Sun -- 09:57 AM EDT     3.44 feet High Tide
Sun -- 12:11 PM EDT     Moonrise
Sun -- 04:44 PM EDT     0.07 feet Low Tide
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:50 PM EDT     Sunset
Sun -- 10:33 PM EDT     2.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.91.20.70.30.10.51.42.42.93.33.43.32.721.30.70.20.10.71.52.12.52.82.8

Weather Map and Satellite Images
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GOES Local Image of Mid-Atlantic    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Raleigh, NC (14,3,4,5)
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Ground Weather Radar Station Raleigh/Durham, NC
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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.