Tuesday, June27, 2017 L-36.com


Marine Weather and Tides
Apex, NC

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 6:00AMSunset 8:36PM Tuesday June 27, 2017 1:26 PM EDT (17:26 UTC) Moonrise 8:57AMMoonset 10:38PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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 Apex, NC
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location: 35.74, -78.86     debug


Area Discussion for - Raleigh, NC
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Fxus62 krah 271708
afdrah
area forecast discussion
national weather service raleigh nc
110 pm edt Tue jun 27 2017

Synopsis
A moisture-starved cold front will cross central nc this afternoon.

Canadian high pressure will follow and crest over the southern
middle atlantic states Wed and Wed night.

Near term today
As of 1020 am edt Tuesday...

just minor adjustments required to the near term forecast, primarily
to decrease pops in the west and tweak temp dewpoints as
temperatures are averaging 2-3 degrees warmer than expected.

12z upper air analysis depicts a modest mid-level trough exiting the
tn valley this morning. This feature accompanied by 30-40m height
falls. While synoptic lift present, atmosphere over central nc not
all that moist, and minimal moisture advection noted in the
analysis. Still expect the highest coverage of a few showers and
possibly an isolated t-storm to occur this afternoon-early evening
across the eastern and southern sections of our forecast area. The
threat for showers does not look all that impressive across the
western piedmont so have lowered pop a bit in this region.

Early morning dewpoints were in the upper 50s to lower 60s. As
mixing ensues late morning-early afternoon, expect dewpoints to drop
into the low-mid 50s most places. Mid-morning temperatures have
warmed into the low-mid 70s. Temperatures should slow their rise as
mid upper level clouds thicken this afternoon. Still expect enough
heating to warm into the low-mid 80s.

Short term tonight through Wednesday night
As of 400 am edt Tuesday...

the system will be east of the area by early tonight with decreasing
cloudiness leading to mostly clear skies after midnight as high
pressure builds in from the northwest. Mins will tumble in the
drying airmass with the clearing above, and most areas should be in
the upper 50s by sunrise Wednesday. Skies will remain clear through
Wednesday night as the high moves across the area, with highs
Wednesday edging up a bit under strong Sun to reach the low and mid
80s, with mins Wednesday night in the lower 60s.

Long term Thursday through Monday
As of 350 am Tuesday...

initially zonal flow aloft, around the NRN periphery of a
developing strengthening sub-tropical ridge centered over the WRN n.

Atlantic, will yield to (generally weakly) perturbed swly flow aloft
as a trough aloft now over WRN canada amplifies across the central
u.S. The most notable (synoptic-scale and predictable) of these
disturbances in swly flow aloft will be a S W trough now crossing
tx, which the models indicate will meander briefly over the nwrn gom
before lifting newd across the sern u.S. And carolinas thu-fri.

At the surface, high pressure will drift across and remain over the
central n. Atlantic through early next week. Return flow around the
high will yield gradually increasing temperatures and humidity
levels, marked most abruptly by the passage of a warm front on fri,
followed by a peak in the humidity this weekend and the heat Mon and
tue. Despite mid level warmth associated with the sub-tropical
ridge, and resultant weak mid level lapse rates, the aforementioned
warming and moistening low levels should prove sufficient for at
least scattered diurnal convection throughout central nc during the
upcoming holiday weekend, after which time, a sharpening appalachian-
lee trough and mixing out of surface dewpoints to the west will
probably shift the focus for convection over the ERN half or third
of the forecast area.

Aviation 18z Tuesday through Sunday
As of 110 pm Tuesday...

vfr parameters expected across central nc through Thursday.

An upper level disturbance and attendant sfc front will cross
central nc this afternoon, and exit our region early this evening.

This weather feature will cause an increase in mid upper level
cloudiness, along with a threat for isolated showers and possibly a
thunderstorm. The convective threat appears highest along and east
of highway 1. Even so, with coverage expected to be no worse than
isolated, threat appears too minimal to include in the aerodrome
forecast for kfay and krwi.

Clouds will decrease this evening with mostly clear skies
anticipated overnight, persisting Wednesday through early Thursday.

An increasing sly low level flow late Thursday into Thursday night
will usher moisture into our region, leading to the probability of
low cloud cover by early Friday morning. These low clouds, if they
occur, should burn off by mid morning. A persistent low level sly
flow is expected Friday through Sunday, leading to an increasingly
wet atmosphere and increased chances for sub-vfr parameters. This
will lead to periods of low clouds and patchy fog each morning and a
chance for scattered afternoon-evening convection each day.

Rah watches warnings advisories
None.

Synopsis... Mws
near term... Wss
short term... Mlm
long term... Mws
aviation... Wss


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Raleigh / Durham, Raleigh-Durham International Airport, NC11 mi35 minVar 510.00 miPartly Cloudy80°F54°F41%1017.6 hPa
Sanford, Sanford-Lee County Regional Airport, NC17 mi41 minNNE 310.00 miFair78°F55°F46%1017.9 hPa
Chapel Hill, Williams Airport, NC18 mi90 minVar 310.00 miFair78°F54°F43%1017.9 hPa

Wind History from RDU (wind in knots)
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Last 24hr4W4W6W76W6W3CalmCalmCalmCalmCalmCalmCalmCalmNW3CalmCalmN3N75NE7NE105
1 day agoNE6N85NW7NW5NW3NW3W3NW3CalmCalmCalmCalmNE43CalmCalmCalmCalmN45N5N74
2 days agoSW7CalmSW7SW5SW5SE6SE4S3CalmW3SW3CalmCalmCalmCalmCalmCalmSW334N4N7NW46

Tide / Current Tables for Bannermans Branch, Northeast River, North Carolina
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Bannermans Branch
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Tue -- 01:12 AM EDT     -0.08 feet Low Tide
Tue -- 06:00 AM EDT     Sunrise
Tue -- 06:43 AM EDT     1.58 feet High Tide
Tue -- 09:54 AM EDT     Moonrise
Tue -- 02:00 PM EDT     -0.08 feet Low Tide
Tue -- 07:22 PM EDT     1.35 feet High Tide
Tue -- 08:27 PM EDT     Sunset
Tue -- 11:32 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-0.100.511.41.51.61.51.210.70.40.1-0.10.10.50.91.21.31.31.10.90.6

Tide / Current Tables for
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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 Raleigh, NC (13,3,4,5)
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Ground Weather Radar Station Raleigh/Durham, NC
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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.