Tuesday, July27, 2021
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Marine Weather and Tides
Raleigh, NC

Version 3.4
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3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:17AMSunset 8:24PM Tuesday July 27, 2021 2:15 AM EDT (06:15 UTC) Moonrise 10:03PMMoonset 8:54AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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 Raleigh, NC
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location: 35.79, -78.64     debug


Area Discussion for - Raleigh, NC
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FXUS62 KRAH 270556 AFDRAH

AREA FORECAST DISCUSSION National Weather Service Raleigh NC 156 AM EDT Tue Jul 27 2021

SYNOPSIS. A surface trough will will waver across the region through Wednesday.

NEAR TERM /THROUGH TONIGHT/. As of 950 PM Monday .

Thunderstorms still appear likely through midnight to the northeast of Raleigh, moving in from southern Virginia. However, the severe thunderstorm watch issued earlier for the NW Piedmont was cancelled at 7pm, the slight risk of severe weather has been removed by the Storm Prediction Center, and the threat for any severe weather or flooding seems likely to be over. Some gusty winds will still be possible with the remaining thunderstorms. A slight chance of showers remains after midnight, but nothing organized is expected. Some areas of fog will be possible, particularly where heavier rainfall occurred earlier (Stanly, Franklin, Nash, and Halifax counties). Conditions will remain quite muggy overnight, with lows dropping into the low to mid 70s.

SHORT TERM /TUESDAY AND TUESDAY NIGHT/. As of 230 PM Monday .

Another low-amplitude shortwave trough will traverse the mid-Atlantic region late Tuesday. Meanwhile, the surface boundary will remain draped across the area.

This boundary will likely provide the primary focus for convection amidst a very moist and unstable regime. Models shift the highest +2.0" PWATS across south/southeastern portions of the forecast area, and this is where the model consensus keep the highest PoPs. Shear is not as strong as today, so any severe threat should be unorganized, in a generally pulse severe regime.

Highs in the upper 80s to lower 90s with heat indices in upper 90s to near 100 across the southern zones.

Convection should abate from loss of heating Tuesday evening with mostly dry conditions Tuesday night. Lows in the upper 60s north to lower/mid 70s south.

LONG TERM /WEDNESDAY THROUGH MONDAY/. As of 355 PM Monday .

The surface boundary will drop south of central NC on Wednesday, with the Piedmont trough remaining over the area. As the mid/upper trough moves east and offshore, dry NW flow aloft will result in decreased convection chances on Wednesday. However, both the GFS and ECMWF show enough lingering moisture for slight to low chance POPs across the area outside of the northern Piedmont. The best chance for any showers and storms is in the far south and east. Increasing thicknesses will bring temperatures a few degrees higher than Mon/Tue, with highs in the lower-to-mid-90s.

With the shortwave trough moving completely out of the area, and the strong mid/upper ridge over the Plains extending farther east, height rises aloft and subsidence will result in hot and dry conditions on Thursday. Forecast highs are in the mid-to-upper-90s, with maximum heat indices in the upper-90s to lower-100s.

A cold front will approach from the north on Friday, bringing a better chance of showers and storms once again. Convection chances will be partly dependent on the timing of the front, with the GFS bringing it through during peak heating compared to the ECMWF which holds it off until Friday night. Even still the GFS and its ensembles have trended drier closer to the ECMWF, so continue low chance POPs at this time. Temperatures will also be dependent on frontal timing, but highs could reach the upper-90s in the south once again.

As the cold front stalls south of the area, Saturday will be drier, but with a broad mid/upper trough over the Eastern US, isolated showers and storms still cannot be ruled out with the best chance in the south. Sunday and Monday have low chance POPs as a shortwave rotates around the base of the trough, and another cold front then approaches the region. Forecast highs from the weekend into Monday are seasonable, in the upper-80s to lower-90s.

AVIATION /06Z TUESDAY THROUGH SATURDAY/. As of 155 AM Tuesday .

An outflow boundary from rain-cooled air, and associated lift, has resulted in the development and maintenance of small cluster of showers/storms from near HRJ to JNX to GWW this morning; and some of these may affect RWI and FAY before dissipating in the next few hours. That rain-cooled and associated high relative humidity air will otherwise support areas of IFR-MVFR ceilings until diurnal heating causes the moist layer to lift and scatter by 14-15Z. Additional scattered showers and storms are expected to develop this afternoon primarily across the srn half of NC, including FAY, RWI, and RDU.

Outlook: Early-morning sub-VFR fog and low clouds will remain possible through Fri morning at all sites. While isolated showers and storms may develop each afternoon, they should be few in number. A better chance of showers and storms will arrive Fri afternoon with the arrival of a cold front. Drier VFR conditions are expected to return Sat as this front settles to our S.

RAH WATCHES/WARNINGS/ADVISORIES. None.

SYNOPSIS . MWS NEAR TERM . Green SHORT TERM . CBL LONG TERM . Danco AVIATION . MWS/Hartfield


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Raleigh / Durham, Raleigh-Durham International Airport, NC10 mi25 minSE 410.00 miMostly Cloudy73°F72°F96%1014.8 hPa
Smithfield, Johnston County Airport, NC22 mi21 minNE 62.00 miThunderstorm Heavy Rain72°F72°F100%1016.6 hPa
Franklin County Airport, NC23 mi21 minESE 310.00 miPartly Cloudy70°F70°F100%1015.9 hPa

Link to 5 minute data for KRDU

Wind History from RDU (wind in knots)
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Last 24hrSW7SW6SW9SW7SW6SW7SW7SW6SW9W10W5W6S7SW9W7SW8CalmS3S4SW4CalmE4E9
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2 days agoS3S3S4CalmCalmS3S7SW8SW44SW6S4S7S9S9S9S8S7S7S8S9S10S8S7

Tide / Current Tables for Bannermans Branch, Northeast River, North Carolina
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Bannermans Branch
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Tue -- 01:05 AM EDT     0.04 feet Low Tide
Tue -- 06:17 AM EDT     Sunrise
Tue -- 06:42 AM EDT     1.51 feet High Tide
Tue -- 09:51 AM EDT     Moonset
Tue -- 01:42 PM EDT     0.03 feet Low Tide
Tue -- 07:04 PM EDT     1.32 feet High Tide
Tue -- 08:16 PM EDT     Sunset
Tue -- 10:58 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.200.20.611.31.51.51.41.10.90.60.30.100.30.711.21.31.31.10.80.6

Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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