Saturday, May30, 2020
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Marine Weather and Tides
Apex, NC

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:59AMSunset 8:26PM Saturday May 30, 2020 7:53 PM EDT (23:53 UTC) Moonrise 12:35PMMoonset 1:14AM Illumination 64% Phase: Waxing Gibbous; Moon at 9 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 302311 AFDRAH

AREA FORECAST DISCUSSION National Weather Service Raleigh NC 710 PM EDT Sat May 30 2020

SYNOPSIS. A cold front will move through the region this afternoon and evening. Seasonably cool and dry surface high pressure will follow the front tonight through early next week. Hotter and more humid weather will return by mid to late week.

NEAR TERM /THROUGH TONIGHT/. As of 156 PM Saturday .

The eastward shift of the deep plume of tropical moisture(~2.0") offshore as the mean flow aloft becoming increasingly westerly has led to dry conditions for the moment, with the lingering stratus giving way to increasing sunshine owing to the drier air aloft mixing down to the surface. Temperatures will respond to the insolation with afternoon highs expected to warm into the mid to upper 80s. This heating will fuel weak to moderate instability(1500 to 2500 MLCAPE) which will trigger some pop up convection area-wide this afternoon with the potential for a more organized area/band of convection to develop along the lead sfc front/trough currently located in the lee of the mtns, which will then move west to east across the forecast through the early evening. Some of the guidance suggest the convection could grow in coverage and intensity as the updrafts encounter the better moisture and instability and/or seabreeze collision across the coastal plain zones. Shear of 20 to 25 kts will be sufficient to support an isolated severe threat, with isolated damaging winds the primary threat.

With the lead front providing a good eastward push, storms should be moving at a good enough clip to avoid flash flooding. QPF of 0.25 to locally 0.50 possible east of I-95, with very light additional QPF in the west (less than 0.10).

Convection should exit the eastern zones between 03 to 06z with skies becoming mostly clear overnight. Weak CAA behind the front will drive overnight lows, ranging from mid/upper 50 NW to lower/mid 60s SE.

SHORT TERM /SUNDAY AND SUNDAY NIGHT/. As of 235 PM Saturday .

. Below-normal temps to close-out May 2020 .

The upper trough in place across the Eastern US will undergo additional amplification on Sunday, owing to a series of shortwaves diving southeast out of Canada, down the back-side of the mean trough. The upper trough dynamics and associated upper jet kinematics is actually pretty decent. However, due to a dry and stable air column in place, it will remain dry, with perhaps a few mid and high clouds at times. However, the most noticeable sensible weather impacts will be the secondary surge of cooler and drier air into the region late Sunday/Sunday night as Canadian high pressure builds south into the region.

After afternoon highs 75 to 80, which is a solid 5 to 7 degrees below normal, lows Sunday night will average 10 degrees below climo with temps Sunday night bottoming out into the lower to mid 50s, with some upper 40s possible in the typically cooler locations.

LONG TERM /MONDAY THROUGH SATURDAY/. As of 415 PM Saturday .

Dry conditions will prevail across central NC Monday and Tuesday as surface high pressure remains in control over the Eastern US. Temperatures on Monday will be about 5 to 10 degrees below normal, with highs in the 70s. With the high building directly overhead Monday night and Tuesday morning, clear skies and light winds will likely result in chilly low temperatures, generally low-to-mid 50s. The high should move offshore on Tuesday, bringing more summerlike conditions (warmer temperatures and increasing humidity) for the area to start meteorological summer. Highs Tuesday should be near normal (low to mid 80s), followed by slightly above normal for the rest of the period (upper 80s to lower 90s).

Early on Wednesday, the GFS shows potential for a weak shortwave to bring some scattered showers to northern zones, but its ensembles disagree showing very little precipitation. The ECMWF is also mostly dry, so keep POPs out of the area for now. From Thursday through Saturday, model guidance shows better potential for precipitation as multiple shortwaves move around the base of the upper trough that sets up over the Eastern US. With plenty of daytime heating and increasing dew points (upper 60s to lower 70s), have a chance of showers and thunderstorms across the entire region each day, with the highest chances in the afternoons and evenings.

AVIATION /00Z SUNDAY THROUGH THURSDAY/. As of 710 PM Saturday .

A cold front continues to produce scattered showers and isolated thunderstorms this evening. If any site receives a shower, this could result in a brief restriction. Otherwise all precipitation should come to an end by midnight. Model guidance is in pretty good agreement that there should be a bit of an increase in winds right around sunrise that should last for several hours before winds settle down in the afternoon.

Outlook: High pressure building into the area Sunday and into early next week will result in predominately dry, VFR conditions through Tuesday. Upper disturbances embedded in the NW flow aloft will lead to an increase in rain chances by mid to late week.

RAH WATCHES/WARNINGS/ADVISORIES. None.



SYNOPSIS . Badgett NEAR TERM . CBL SHORT TERM . CBL LONG TERM . Danco AVIATION . Green/CBL


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Raleigh / Durham, Raleigh-Durham International Airport, NC11 mi62 minN 610.00 miMostly Cloudy82°F64°F55%1012.6 hPa
Sanford, Sanford-Lee County Regional Airport, NC17 mi58 minWSW 310.00 miPartly Cloudy83°F66°F59%1012.9 hPa

Link to 5 minute data for KRDU

Wind History from RDU (wind in knots)
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Last 24hrSW4SW6SW3W3SW4SW8SW8SW6SW5SW7SW5SW5CalmW4SW6N3Calm4Calm5CalmCalm4N6
1 day agoS4S5SE5SE6SE5SE7S7S8S8S6S8SW5CalmS4S5SW9SW5SW5W5SW6S6
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Tide / Current Tables for Bannermans Branch, Northeast River, North Carolina
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Bannermans Branch
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Sat -- 02:08 AM EDT     Moonset
Sat -- 04:44 AM EDT     0.06 feet Low Tide
Sat -- 05:59 AM EDT     Sunrise
Sat -- 09:51 AM EDT     1.44 feet High Tide
Sat -- 01:31 PM EDT     Moonrise
Sat -- 05:31 PM EDT     -0.01 feet Low Tide
Sat -- 08:17 PM EDT     Sunset
Sat -- 10:54 PM EDT     1.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.70.40.20.10.10.30.71.11.41.41.41.20.90.60.40.2000.30.71.11.31.3

Tide / Current Tables for
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Weather Map
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GEOS Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Raleigh, NC (19,4,5,8)
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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 numerous 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.