Saturday, August15, 2020
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Marine Weather and Tides
Hatteras, 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 6:27AMSunset 7:56PM Saturday August 15, 2020 12:02 PM EDT (16:02 UTC) Moonrise 1:31AMMoonset 4:28PM Illumination 11% Phase: Waning Crescent; Moon at 26 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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AMZ154 S Of Cape Hatteras To Ocracoke Inlet Nc Out 20 Nm Including The Monitor National Marine Sanctuary- 1128 Am Edt Sat Aug 15 2020
Rest of today..SW winds 5 to 10 kt, increasing to 10 to 15 kt late. Seas around 3 ft. Dominant period 6 seconds. Showers and tstms likely early this afternoon, then a chance of showers and tstms late.
Tonight..SW winds 10 to 15 kt. Seas 3 to 5 ft. Dominant period 9 seconds. A chance of showers and tstms in the evening, then showers and tstms likely after midnight.
Sun..SW winds 15 to 20 kt. Seas 4 to 6 ft. Dominant period 6 seconds. Showers and tstms likely, mainly in the morning.
Sun night..SW winds 15 to 20 kt, becoming nw 10 to 15 kt after midnight. Seas 4 to 6 ft. Dominant period 6 seconds. Showers likely with a chance of tstms.
Mon..N winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft. A slight chance of tstms. A chance of showers, mainly in the morning.
Mon night..N winds around 5 kt. Seas 3 to 5 ft.
Tue..N winds around 5 kt, becoming s. Seas 3 to 5 ft. A chance of showers.
Wed..S winds 5 to 10 kt. Seas 3 to 5 ft. A chance of tstms. A chance of showers. Winds and seas higher in and near tstms.


7 Day Forecast for Marine Location Near Hatteras, NC
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location: 34.96, -75.69     debug


Area Discussion for - Newport/Morehead City, NC
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FXUS62 KMHX 151542 AFDMHX

Area Forecast Discussion National Weather Service Newport/Morehead City NC 1142 AM EDT Sat Aug 15 2020

SYNOPSIS. A low pressure area and front will affect the area through Sunday. The front will move through Sunday night with high pressure building in early next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. As of 1115 AM Sat . A relative lull in the precip late this morning, with convection expected to once again increase in coverage over the next several hours as pockets of sunshine build instability. 2-3 inches of rainfall this morning over eastern Carteret County make that area the most primed or flooding issues this morning, but ~2.3 in PWAT values on the 12Z KMHX sounding indicate that rainfall will be heavy at times, and localized flooding is possible for any areas where storms training this afternoon. Surface boundary draped along the Pamlico/Tar river will gradually retreat northward through the afternoon, brining the most likely focus for training along the US Hwy 64/264 corridor for the rest of the day.

ML CAPE values of 2000+ J/kg, and with decent shear expected in the area of 20+ kt, a stronger storm cannot be ruled out. Very low LCLs also invite the potential for an isolated, weak, short-lived tornado or two near airmass density boundaries. High still look on track for mostly mid 80s, with a few locations in the upper 80s to near 90 possible mainly along the US Hwy 17 corridor.

SHORT TERM /6 PM THIS EVENING THROUGH 6 AM SUNDAY/. As of 3 AM Sat . Area should be more entrenched in the warm sector tonight, so coverage of showers and storms should be more scattered in nature by late evening, so have likely pops in the eve dec to high chc overnight. Lows continue warm and muggy in the 70s.

LONG TERM /SUNDAY THROUGH FRIDAY/. As of 3 AM Sat . Another wet day Sunday, then drying out for the first part of the week. Seasonable temps expected through the period.

Sunday and Sunday night . At the surface a wavy cold front will linger over the area Sunday as the base of the upper trough pivots through. Low pressure will strengthen along the front, lifting through ENC Sunday morning, then strengthening off the Mid-Atlantic coast Sunday afternoon and evening. Localized flooding will again be the main concern Sunday. The air mass will still be supportive of locally heavy rains with cyclonic flow, dewpoints in the 70s, PW values AOA 2" and sufficient instability. Will continue likely PoPs through the day. The front will finally push through the area Sunday evening and Sun night with precip chances quickly tapering off from west to east as drier air filters in.

Monday and Tuesday . Forecast continues to trend drier and looks pleasant early this week with front lingering just off the coast and troughing aloft. Isolated showers and storms possible Monday afternoon, but expect bulk of area to remain dry with little forcing. Slightly better chances across the SW area Tue afternoon as low level flow becomes more southerly and weak boundary begins to move back towards the coast. Expect drier air to filter into the area Mon with guidance showing dewpoints falling into the upper 60s to lower 70s.

Wednesday through Friday . More typical summertime weather returns Wed through late week, with high pressure offshore, sfc troughing inland and ridge gradually building aloft. Weak front may continue to linger over portions of the area, aiding as another focus for convection. Will continue chance PoPs each day with best chances during peak heating. Temps near climo with highs in the mid to upper 80s.

AVIATION /16Z SATURDAY THROUGH WEDNESDAY/. Short Term /Through Tonight/ . As of 7 AM Sat . MVFR/IFR conditions through much of this morning, lifting to MVFR/VFR by this afternoon. Clouds will remain close to MVFR levels through the day. Scattered to eventually widespread showers and thunderstorms are anticipated through today with ocnl IFR/MVFR at any time during the day today esp with the heavier showers moving through. More IFR possible tonight with lowered CIGS.

Long Term /Sunday through Wednesday/ . As of 3 AM Sat . Sub-VFR likely to continue Sunday, maybe lingering into Monday morning. Numerous showers and storms expected Sunday, tapering off Sun evening. Expect pred VFR to return Mon through Wed. Isolated diurnal showers and storms Monday and Tuesday, with better chances Wed.

MARINE. Short Term /THrough Tonight/ . As of 3 AM Sat . The area will be bisected by a weak boundary through a good part of today, with winds to the north E to NE at 5-15 kts, and winds to the south, S to SW at 10-15 kts. Quite wet with and ocnl thunderstorms expected, and cannot rule out some waterspouts due to the stalled front over the region. Seas will generally be 2-3 ft with some 4 ft sets ocnl across the outer ctl/srn waters possible. The showery and stormy pattern will continue tonight as well.

Long Term /Sunday through Wednesday/ . As of 3 AM Sat . Confidence is increasing that could see a period of SCA conditions develop Sunday ahead of the front. SW winds likely to increase to 15-20 kt with occasional gusts to 25 kt. Best chances for SCA still look to be the central waters. All wave guidance shows a brief period of 6 ft seas developing across the central waters Sun afternoon. The front will move through the waters Sun evening and Sunday night with northerly winds 10-15 kt developing behind it. N winds 10-15 kt Mon morning becoming N/NE 5-10 kt Mon afternoon, with seas 3-5 ft. Light winds less than 10 kt expected Tue and Wed. However swell from distant tropical cyclones (Kyle and Josephine) will keep seas at 3-5 ft, highest north of Ocracoke.

EQUIPMENT. As of 345 AM Sat . The ASOS temperature sensor at Frisco, NC (HSE) reports erroneously warm temperatures at times so please use the temperature data with caution. Maintenance to repair the senor is scheduled for early next week.

MHX WATCHES/WARNINGS/ADVISORIES. NC . None. MARINE . None.

SYNOPSIS . MHX NEAR TERM . TL/CB SHORT TERM . TL LONG TERM . CQD AVIATION . CQD/TL MARINE . CQD/TL EQUIPMENT . MHX


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HCGN7 - 8654467 - Hatteras, NC 17 mi44 min SW 6 G 8 78°F 81°F1013.7 hPa
41025 - Diamond Shoals 18 mi32 min SW 12 G 16 80°F 83°F75°F
CLKN7 - Cape Lookout, NC 50 mi62 min SW 9.9 G 14 76°F 1014.2 hPa (+0.7)

Wind History for USCG Station Hatteras, NC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hatteras, Mitchell Field, NC18 mi71 minWSW 710.00 miPartly Cloudy82°F75°F79%1013.7 hPa

Link to 5 minute data for KHSE

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2 days agoS7S7S65S4SW8S6S5S5S5SW3S6SE4S8S7S6SE9S11SW10
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Tide / Current Tables for Hatteras Inlet, North Carolina (2)
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Hatteras Inlet
Click for Map
Sat -- 02:30 AM EDT     Moonrise
Sat -- 04:58 AM EDT     1.85 feet High Tide
Sat -- 06:23 AM EDT     Sunrise
Sat -- 10:56 AM EDT     0.41 feet Low Tide
Sat -- 05:26 PM EDT     2.37 feet High Tide
Sat -- 05:29 PM EDT     Moonset
Sat -- 07:50 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.81.21.51.81.81.71.51.10.80.50.40.50.91.31.82.12.42.32.11.71.30.80.5

Tide / Current Tables for Hatteras Inlet, North Carolina
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Hatteras Inlet
Click for Map
Sat -- 02:30 AM EDT     Moonrise
Sat -- 05:06 AM EDT     1.64 feet High Tide
Sat -- 06:22 AM EDT     Sunrise
Sat -- 11:04 AM EDT     0.20 feet Low Tide
Sat -- 05:29 PM EDT     Moonset
Sat -- 05:37 PM EDT     2.20 feet High Tide
Sat -- 07:50 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.60.91.31.51.61.61.310.60.30.20.30.611.51.92.12.221.61.10.70.3

Weather Map
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wmap_A
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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Newport/Morehead City, NC (12,3,4,5)
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Ground Weather Radar Station Morehead City, NC
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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.