Wednesday, August5, 2020
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Marine Weather and Tides
Denton, MD

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 6:08AMSunset 8:12PM Wednesday August 5, 2020 9:43 PM EDT (01:43 UTC) Moonrise 8:43PMMoonset 6:52AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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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ANZ540 Eastern Bay- 802 Pm Edt Wed Aug 5 2020
Tonight..SE winds 5 kt. Waves flat. Isolated showers early this evening, then a chance of showers with a slight chance of tstms after midnight.
Thu..NE winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Thu night..E winds 5 to 10 kt. Waves 1 ft or less. Showers and tstms likely.
Fri..NE winds 5 kt. Waves flat. Showers and tstms likely.
Fri night..NE winds 5 kt. Waves flat. A chance of showers and tstms.
Sat..N winds around 5 kt. Waves flat.
Sat night..SW winds around 5 kt. Waves flat.
Sun..S winds 5 to 10 kt. Waves 1 ft or less.
Mon..S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 802 Pm Edt Wed Aug 5 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A stationary boundary will linger near the region through Friday. This will result in chances for showers and Thunderstorms each day during the late afternoon and evening.


7 Day Forecast for Marine Location Near Denton, MD
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location: 38.88, -75.83     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 052327 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 727 PM EDT Wed Aug 5 2020

SYNOPSIS. Weak high pressure across the area today will weaken overnight. A front off to the south and east will meander back across the region while low pressure develop along it through Friday. These features will remain in place into early Saturday before more high pressure builds in for the later half of the weekend. Another set of disturbances will arrive for early next week.

NEAR TERM /UNTIL 6 AM THURSDAY MORNING/. The frontal boundary remains draped across the east coast, from southeast Canada, across the Mid-Atlantic states, then into the Southeast states. Meanwhile, high pressure will continue to move eastward out of the southern Great Lakes and toward the northeast states overnight. Other than an isolated shower or thunderstorm across southern Delaware due to lingering instability with CAPE values 500-1000 J/kg, mostly dry weather is expected for much of this evening into the first half of the overnight. The showers across southern Delaware will remain isolated this evening as there is no strong short waves at this time.

However, things look to change late in the night and today morning Thursday. A short wave/vorticity impulse will make its way into the area late in the overnight, toward daybreak Thursday. This will interact with some enhanced moisture and lift north of the stalled out frontal boundary, leading to an area of showers and embedded thunderstorms moving into the area around or shortly before daybreak. One thing to look for is that there is abundant moisture as evident from PW values 1.50-1.75 inches, so locally heavy rain is possible. Given how much rain has fallen over the last week or so, this may result in localized flooding should the higher rain amounts develop.

Otherwise, warm and humid with lows in the 60s to around 70.

SHORT TERM /6 AM THURSDAY MORNING THROUGH 6 PM THURSDAY/. Trough axis remains west of the region and several shortwaves will lift northeast through the region on Thursday. After the initial round of showers and thunderstorms in the morning, the best chances for showers and thunderstorms for the afternoon will be across the southern half of the forecast area. With abundant low level moisture in place, can expect some locally heavy rainfall. Clouds and rain will keep temperatures on the cooler side, generally upper 70s to the north to low 80s elsewhere.

LONG TERM /THURSDAY NIGHT THROUGH WEDNESDAY/. A rather progressive upper pattern with mostly weak features and a meandering surface front will bring much of the weather in the long term part of the forecast. Temperatures for the first few days will be near normal, but readings will then go above normal for the balance of the period. Precipitation will be showery favoring mostly the Delmarva and srn NJ.

Thu night thru Fri night . The front across the south and an upper trough will set off numerous showers and scattered tstms Thu night with likely pops in the fcst. The feature will move away as the upper support fades on Friday so pops will decrease back to chc or slight chc pops by Fri night. Locally heavy rains may occur with the showers/tstms Friday.

The weekend . Overall, not a bad weekend expected weather-wise. The last of the showers associated with the front may linger across Delmarva early Sat with some chc pops in the grids. Sunday looks mostly fair attm. An upper ridge across the Srn states will begin to push up across the Ohio Valley and into the northern Middle Atlantic. A late day shower on Sunday is possible, but we'll just put pops at slight chc since overall the set up is not that great.

Next week . Not much change to the pattern, but a strengthening flow aloft across the Wrn and Central parts of the country will begin to usher some short waves across the Great Lakes and into the Northeast. The first one and its associated sfc features will arrive later Monday and a few more will near the area as we get towards the middle of the week. We will have chc pops in the fcst with the Tue period having the greatest chcs. Temperatures will continue above normal and humidity levels will start to climb back to uncomfortable levels again.

AVIATION /23Z WEDNESDAY THROUGH MONDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . Mostly VFR conditions expected. Showers and embedded thunderstorms may begin to affect the TAF sites late in the night and toward daybreak. Patchy fog possible as well that would result in sub-VFR VSBYs but not included in the TAFS due to low confidence. West winds 5-10 knots, becoming light and variable overnight. Moderate confidence.

Thursday . Generally VFR conditions. Showers and embedded thunderstorms may affect the TAF sites during the morning into early afternoon hours which could result in temporary MVFR conditions from time to time. Showers and thunderstorms could linger across southern New Jersey, southern Delaware, and southern Maryland into the afternoon. Winds becoming northeast, then east winds 5-10 knots, except variable in TSRA. Low confidence.

Outlook . Thu night thru Fri night . Restrictions expected at times with frequent showers and tstms Thu night and more sct activity Fri and Fri night.

Sat thru Sunday . Mostly VFR. Patchy rural morning fog possible.

Monday . Mostly VFR but sct shower and tstms with lower conditions possible.

MARINE. Tonight and Thursday . Generally sub-SCA conditions, except in thunderstorms.

Outlook . sub-SCA conditions with sct showers and tstms (mostly) Thu night thru Fri night and again early next week.

Rip Currents .

The elevated rip current risk will continue the rest of today. On Thursday, wave heights will continue to fall towards 2 feet with with light east winds. This will allow for the rip current risk to be low.

EQUIPMENT. The NOAA Weather Radio All-Hazards broadcast from Hibernia Park Pennsylvania (Station WNG-704) remains off the air.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . None.



Synopsis . O'Hara Near Term . MPS/Robertson Short Term . MPS Long Term . O'Hara Aviation . MPS/O'Hara/Robertson Marine . MPS/O'Hara Equipment . WFO PHI


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 25 mi61 min 83°F 85°F1017 hPa
CPVM2 31 mi55 min 83°F
TPLM2 - Thomas Point, MD 32 mi43 min ESE 6 G 6 83°F 82°F1018.1 hPa (+0.3)67°F
TCBM2 - 8573364 - Tolchester Beach, MD 32 mi61 min 79°F 84°F1017.3 hPa
APAM2 - 8575512 - Annapolis, MD 35 mi55 min 82°F 84°F1016.5 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 38 mi61 min 83°F 1017.9 hPa
LWSD1 - 8557380 - Lewes, DE 38 mi55 min 77°F 78°F1017.8 hPa
44062 - Gooses Reef, MD 38 mi31 min 83°F 83°F
BRND1 - 8555889 - Brandywine Shoal Light, DE 39 mi61 min 1017.9 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 44 mi55 min 82°F 1016.9 hPa
FSNM2 44 mi73 min 82°F 1016.9 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 44 mi55 min 1017.5 hPa
CHCM2 - 8573927 - Chesapeake City, MD 45 mi55 min 84°F
CMAN4 - 8536110 - Cape May, NJ 47 mi55 min 76°F 74°F1017.5 hPa
BSLM2 - Chesapeake Bay, MD 47 mi133 min ESE 1.9 1016 hPa
BISM2 - 8571421 - Bishops Head, MD 47 mi55 min 83°F 85°F1016.9 hPa
BLTM2 - 8574680 - Baltimore, MD 48 mi55 min 82°F 82°F1016.6 hPa
RDYD1 - 8551910 - Reedy Point, DE 49 mi55 min 84°F

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Easton / Newman Field, MD14 mi53 minN 010.00 miPartly Cloudy79°F71°F79%1018.6 hPa

Link to 5 minute data for KESN

Wind History from ESN (wind in knots)
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Last 24hrSE5SE5S3NW5NE3CalmCalmCalmCalmCalmCalmN5NW4N3CalmNW4CalmNW5W4NW6W4CalmCalmCalm
1 day ago--SE4CalmCalmW4NW3W5N4N7N12
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2 days agoS4SW7S9SW10
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CalmCalmCalmCalmW4W3CalmCalmW6SW5SW8W4SW5NW4CalmCalmCalm

Tide / Current Tables for Denton, Choptank River, Maryland (2)
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Denton
Click for Map
Wed -- 02:41 AM EDT     0.86 feet Low Tide
Wed -- 06:08 AM EDT     Sunrise
Wed -- 07:52 AM EDT     Moonset
Wed -- 08:59 AM EDT     3.72 feet High Tide
Wed -- 04:14 PM EDT     1.07 feet Low Tide
Wed -- 08:09 PM EDT     Sunset
Wed -- 09:13 PM EDT     2.81 feet High Tide
Wed -- 09:43 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.20.90.91.11.62.333.53.73.63.22.72.21.71.31.11.21.52.12.62.82.72.4

Tide / Current Tables for Wayman Wharf, Tuckahoe Creek, Choptank River, Maryland
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Wayman Wharf
Click for Map
Wed -- 02:44 AM EDT     0.94 feet Low Tide
Wed -- 06:08 AM EDT     Sunrise
Wed -- 07:52 AM EDT     Moonset
Wed -- 09:39 AM EDT     4.07 feet High Tide
Wed -- 04:17 PM EDT     1.16 feet Low Tide
Wed -- 08:10 PM EDT     Sunset
Wed -- 09:43 PM EDT     Moonrise
Wed -- 09:53 PM EDT     3.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.91.410.91.21.62.333.644.13.83.22.61.91.41.21.21.62.12.633.12.9

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (21,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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weather_mapweather_map weather_map

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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.