Friday, September25, 2020
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Marine Weather and Tides
Algonquin, MD

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:54AMSunset 6:57PM Friday September 25, 2020 10:16 AM EDT (14:16 UTC) Moonrise 2:55PMMoonset 12:00AM Illumination 59% Phase: Waxing Gibbous; Moon at 8 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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ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 737 Am Edt Fri Sep 25 2020
Today..S winds 5 to 10 kt. Waves 1 ft. A slight chance of showers this morning, then a chance of showers this afternoon.
Tonight..SE winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Sat..SE winds 5 kt. Waves less than 1 ft. A chance of showers.
Sat night..S winds 5 to 10 kt. Waves 1 ft.
Sun..S winds around 5 kt. Waves 1 ft or less.
Sun night..S winds 5 to 10 kt. Waves 1 ft.
Mon..S winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night.
Tue..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
ANZ500 737 Am Edt Fri Sep 25 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. The remnants of beta will likely pass to the south while weakening today into Saturday. A pair of cold fronts are expected to approach from the great lakes and ohio river valley late in the weekend into early next week. Small craft advisories may be needed for portions of the waters Sunday through Tuesday.


7 Day Forecast for Marine Location Near Algonquin, MD
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location: 38.59, -76.07     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 251054 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 654 AM EDT Fri Sep 25 2020

SYNOPSIS. The remnants of Beta will pass to the south of the region through Saturday. High pressure will settle to the south and east of the are for Sunday. A low pressure system will move through the Ohio Valley and push northward into Canada through Tuesday. The associated cold front will cross our area late Tuesday or Wednesday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Continuing to watch the trends in the fog. So far, fog has been transient enough that I decided to hold off on a dense fog advisory, but have issued a special weather statement through the morning commute. I think it should still dissipate by mid morning, though interestingly, low clouds have developed over the coastal plains suggesting that visibility restrictions could linger for a bit longer there.

Remnants of Beta and the associated mid level short wave trough are expected to lift Northeast, closer to our region through the day. There remains some question as to how far north the rain shield will extend, especially during the day today. With dew points already in the 60s, and weak southwesterly low level return flow, we should have ample moisture in place for rain. So the main question is if we'll have enough lift this far north to support precip. Although it looks like the best mid level lift will stay to our south, an upper level jet over our region should provide enough upper level divergence. Thus, have kept mostly slight chance for Delmarva and far south Jersey through the day.

With little change in the air mass, temperatures should stay near or slightly above normal, with highs mostly in the mid to upper 70s.

SHORT TERM /6 PM THIS EVENING THROUGH 6 AM SATURDAY/. Although the upper level jet shifts further off shore, the mid level short wave trough should lift closer to our region. Consequently, the chance for rain expands and increases, especially across Delmarva. Having said that, it is still unlikely that rain will get as far north as the I 78 corridor, and if clouds are able to clear out quicker like what we saw this morning, then another round of fog is possible. For now though, kept out a mention of fog as guidance is in relatively good agreement that mid level clouds should expand and persist across the region overnight. These clouds should help to keep temperatures 5 to 10 degrees above normal, with lows mostly in the 50s to lower 60s.

LONG TERM /SATURDAY THROUGH THURSDAY/. The remnant moisture from Beta will be pulled up into our area on Saturday as a weak trough crosses the Mid-Atlantic. Showers will spread northward through the day and then start to taper off as we head into the evening. Some drizzle or light rain may continue through Saturday night into Sunday as the low level moisture remains pretty high across the region.

Sunday should be a relatively dry day but there is some indication in the models and soundings that we could remain drizzly through a good part of the day. With the southerly flow in place, it may be hard to see the skies clear out and the guidance is mixed here as well with some showing sunny skies and others keeping us clouded over. For now, continue to show that we should see some sun on Sunday but overall this is a period of low confidence in the forecast. Should we break out from the cloudy skies, expect that the cloud cover will once again increase later in the day as the high over the Atlantic starts to lose its hold and starts to drift east as the next system starts to move in from the west.

Low pressure will crosses over Hudson Bay on Sunday or Sunday night. The attendant cold front doesn't look to make it as far east as our region but a low pressure forms along the boundary and will track up into the Ohio Valley and then into Canada on Monday. The cold front from this system will make it into our area late Tuesday, possibly not crossing through until Wednesday. Chances for showers and a slight chance for some thunderstorms will remain possible through mid-week.

Unfortunately, the model guidance is showing very different solutions as we head through the new week and these differences will play a rather big role in our weather through the week. The position of the upper level closed low or deep upper trough will be important as one is far more progressive than the other and can mean the difference between a more prolonged period of wet weather or more marked periods of dryness. With such an unsettled pattern in place, it will bear some watching as we get into the new week.

AVIATION /12Z FRIDAY THROUGH TUESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Through 15Z . MVFR and even IFR/LIFR conditions will continue at times due to fog. However, at some TAF sites low ceilings have also developed. Still expect that conditions should improve to VFR by 15Z, but so far, this fog has been more persistent than previously expected. Winds should stay light (less than 5 kt) and variable. Low confidence.

Today . Once the fog dissipates, it should be mostly VFR. There is a slight chance that rain showers will move in to KILG, KMIV and KACY this afternoon, but no visibility restrictions are expected. Southwesterly wind 5 to 10 knots. Moderate confidence.

Tonight . Mostly VFR conditions through the evening with ceilings thickening and lowering to around 5000 ft AGL. Ceilings may lower to MVFR after 06Z, especially for KPHL, KILG, KMIV, and KACY. Rain showers are possible across the region, but most likely at KILG, KMIV, and KACY. Few, if any, visibility restrictions are expected with rain showers. However, another round of fog is possible after 06Z, though visibility restrictions likely won't be as low as they were this morning. Light and variable winds. Moderate confidence on most aspects of the forecast, but low confidence on the potential for fog.

Outlook .

Saturday . Increasing cloudiness with lowering ceilings through the morning. MVFR/IFR conditions early, becoming VFR by Saturday afternoon. Showers possible. Southerly winds around 5 to 10 knots. Low confidence.

Sunday . Mainly MVFR or lower due to low clouds and drizzle with a chance for a period VFR through the day. Southerly winds around 5 to 10 knots. Low confidence.

Monday and Tuesday . Mainly VFR with periods of MVFR or lower in showers and isolated thunderstorms. South to southwest winds around 5 to 10 knots, increasing to 10 to 15 knots on Tuesday. Low confidence.

MARINE. Winds and seas are expected to stay below Small Craft advisory criteria through tonight.

Outlook .

Saturday through Tuesday . Sub-Small Craft Advisory conditions expected across the area waters. Seas will build through the weekend and may near 5 feet by late Monday. Southerly winds around 10 to 15 knots, favoring the southwest most of the time. Wind gusts may near 25 knots on Tuesday.

Rip Currents .

There is a low risk for the development of dangerous rip currents on Friday and Saturday.

Wind, wave and swell conditions should be similar on both Friday and Saturday. A southerly wind around 10 MPH is forecast. While there will be a long period (10 to 11 second) easterly swell, breaking waves are expected to be 2 feet or less.

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

Synopsis . Meola Near Term . Johnson Short Term . Johnson Long Term . Meola Aviation . Johnson/Meola Marine . Johnson/Meola


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 1 mi47 min SSW 4.1 G 5.1 66°F 1020.2 hPa
44062 - Gooses Reef, MD 18 mi29 min SW 5.8 G 7.8 66°F 70°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 21 mi47 min SSW 1.9 G 2.9 1021.2 hPa
BISM2 - 8571421 - Bishops Head, MD 26 mi47 min WSW 4.1 G 4.1 68°F 1020.5 hPa
SLIM2 - 8577330 - Solomons Island, MD 27 mi47 min SW 2.9 G 2.9 65°F 1020.5 hPa
TPLM2 - Thomas Point, MD 29 mi17 min SSW 8.9 G 8.9 64°F 70°F1021.6 hPa (+1.5)59°F
CPVM2 33 mi47 min 66°F 59°F
APAM2 - 8575512 - Annapolis, MD 35 mi47 min Calm G 2.9 66°F 1019.5 hPa
BSLM2 - Chesapeake Bay, MD 36 mi107 min SSE 2.9 1019 hPa
PPTM2 - 8578240 - Piney Point, MD 40 mi47 min Calm G 4.1
TCBM2 - 8573364 - Tolchester Beach, MD 44 mi47 min SSE 1 G 2.9 66°F 1019.9 hPa
LWTV2 - 8635750 - Lewisetta, VA 46 mi47 min WSW 1 G 1.9 65°F 1020.8 hPa

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD4 mi22 minN 010.00 miFair64°F64°F100%1020.7 hPa
Easton / Newman Field, MD15 mi32 minN 010.00 miFair66°F64°F94%1021.3 hPa

Link to 5 minute data for KCGE

Wind History from CGE (wind in knots)
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Last 24hrCalmSW4CalmS5S43S5CalmS3CalmCalmCalmCalmCalmCalmCalmSE3CalmCalmSE3CalmCalmCalmCalm
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Tide / Current Tables for Cambridge, Choptank River, Maryland
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Cambridge
Click for Map
Fri -- 12:32 AM EDT     Moonset
Fri -- 06:13 AM EDT     0.79 feet Low Tide
Fri -- 06:55 AM EDT     Sunrise
Fri -- 11:29 AM EDT     1.85 feet High Tide
Fri -- 03:54 PM EDT     Moonrise
Fri -- 05:59 PM EDT     0.41 feet Low Tide
Fri -- 06:55 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.221.71.41.20.90.80.81.11.41.71.81.81.71.410.70.50.40.50.81.21.62

Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
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Cove Point (1.1 mi. NE of)
Click for Map
Fri -- 12:34 AM EDT     Moonset
Fri -- 01:10 AM EDT     -0.00 knots Slack
Fri -- 04:38 AM EDT     -0.64 knots Max Ebb
Fri -- 06:56 AM EDT     Sunrise
Fri -- 08:02 AM EDT     0.00 knots Slack
Fri -- 10:23 AM EDT     0.31 knots Max Flood
Fri -- 01:20 PM EDT     -0.00 knots Slack
Fri -- 03:55 PM EDT     Moonrise
Fri -- 04:33 PM EDT     -0.39 knots Max Ebb
Fri -- 06:56 PM EDT     Sunset
Fri -- 07:02 PM EDT     0.00 knots Slack
Fri -- 10:27 PM EDT     0.66 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30-0.2-0.5-0.6-0.6-0.5-0.3-00.20.30.30.20.1-0.1-0.3-0.4-0.4-0.2-00.30.50.60.6

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
Ground Weather Radar Station Dover AFB, DE
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