Saturday, August8, 2020
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Marine Weather and Tides
Refton, PA

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 6:09AMSunset 8:12PM Saturday August 8, 2020 5:19 AM EDT (09:19 UTC) Moonrise 10:01PMMoonset 9:51AM Illumination 81% Phase: Waning Gibbous; Moon at 19 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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ANZ530 Chesapeake Bay North Of Pooles Island- 437 Am Edt Sat Aug 8 2020
Rest of the overnight..NE winds 5 kt. Waves flat. A chance of showers. Patchy fog. Vsby 1 to 3 nm.
Today..E winds 5 kt. Waves flat.
Tonight..SE winds 5 kt. Waves flat.
Sun..S winds around 5 kt. Waves flat.
Sun night..S winds 5 kt. Waves flat.
Mon..S winds 5 to 10 kt. Waves 1 ft or less.
Mon night..S winds 5 to 10 kt. Waves 1 ft.
Tue..S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Wed..S winds 5 kt. Waves less than 1 ft. Showers and tstms likely, then a chance of showers after midnight. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 437 Am Edt Sat Aug 8 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A stationary front will remain just south of the area through Saturday before dissipating Sunday. High pressure will then build over the region over the second half of the weekend.


7 Day Forecast for Marine Location Near Refton, PA
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location: 39.88, -76.27     debug


Area Discussion for - State College, PA
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FXUS61 KCTP 080835 AFDCTP

Area Forecast Discussion National Weather Service State College PA 435 AM EDT Sat Aug 8 2020

SYNOPSIS. The weather pattern will trend drier and increasingly warmer over the weekend with heat and humidity ramping back up into next week. The return of hot/humid conditions next week will help fuel isolated afternoon and evening thunderstorms.

NEAR TERM /THROUGH TONIGHT/. Fog and low clouds will cover much of CPA early this morning. The fog may be locally dense with visibility below 1/2 mile. Expect fog/low clouds to give way to a partly-mostly sunny afternoon with a spotty shower or t-storm possible (20-25 POP) mainly across the eastern 1/2 of the area.

Late-day cumulus/stray shower will fade this evening with mainly clear skies tonight. Valley fog is likely to form into early Sunday morning especially across the northern tier where lows will be in the mid-upper 50s.

SHORT TERM /SUNDAY THROUGH SUNDAY NIGHT/. High pressure will provide fair weather on Sunday. Temperatures will continue to trend warmer with an uptick in humidity levels. Max temps will run 5 to 10 degrees above normal with highs around 90F in the south central ridge and valley region. Sunday night will be muggy with lows in the 60-70 degree range.

LONG TERM /MONDAY THROUGH FRIDAY/. Flat flow or even a very slight ridging overhead to start the period will be followed by a minor trough and attendant front for mid-week which will lead to a daily chance for showers and thunderstorms from mid week on. The best chance for showers or thunderstorms will be in the afternoon and evening, with convection diminishing after sunset.

Heat Index values take a run at the upper 90s in the Lower Susq. Continued to stay a little conservative for afternoon dewpoints vs NBM guidance.

AVIATION /09Z SATURDAY THROUGH WEDNESDAY/. Plenty of river/valley fog ongoing this morning along with two areas of low stratus, one over the Susq river valley and the other along the western high terrain. These are bringing MVFR conditions to the SE and IFR-VLIFR to remaining terminals.

Conditions will improve quickly after sunrise Saturday morning, with VFR conditions areawide by mid/late morning continuing through the remainder of the day. An isolated shower or tstm will be possible over the eastern half of CWA in the afternoon. Winds will be light through the period.

Outlook .

Sun-Mon . Mainly VFR. Patchy low clouds and fog possible early in the morning.

Tue-Wed . Increasing potential for showers and thunderstorms, along with associated restrictions.

CTP WATCHES/WARNINGS/ADVISORIES. None.

SYNOPSIS . Steinbugl NEAR TERM . Steinbugl SHORT TERM . Steinbugl LONG TERM . Dangelo/Travis AVIATION . Ross/RXR


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHCM2 - 8573927 - Chesapeake City, MD 34 mi49 min E 5.1 G 7 70°F 82°F1020.1 hPa
DELD1 - 8551762 - Delaware City, DE 42 mi49 min ENE 1.9 G 8.9 72°F 76°F1020 hPa
RDYD1 - 8551910 - Reedy Point, DE 43 mi49 min 70°F 82°F1019.5 hPa
BLTM2 - 8574680 - Baltimore, MD 45 mi49 min NE 7 G 8.9 72°F 82°F1019.2 hPa
MRCP1 - 8540433 - Marcus Hook, PA 46 mi49 min 72°F 80°F1019.6 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 46 mi49 min E 2.9 G 6 71°F 82°F1019.7 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 48 mi49 min NE 7 G 8.9 72°F 1019.5 hPa
FSNM2 48 mi67 min NNE 8 G 8.9 71°F 1019.4 hPa

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lancaster, Lancaster Airport, PA17 mi26 minN 010.00 miOvercast70°F66°F87%1020.4 hPa
Chester County Airport, PA23 mi24 minN 05.00 miFog/Mist68°F68°F100%1021.3 hPa

Link to 5 minute data for KLNS

Wind History from LNS (wind in knots)
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Last 24hrCalmNE6NE6E6E5E8E9E9E9NE7NW10NE18
G23
N13E6CalmN3CalmCalmCalmN4CalmNE3NE4Calm
1 day agoCalmCalmE4NE8E7NE8NE5E6E4E7E6E6SE6E5E4SE4E4E4E3CalmCalmE3E3E3
2 days agoSW3W3NW4NW7NW63W6W6W9NW7W10
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W10W6W4CalmCalmNE3SE3CalmCalmCalmE3Calm

Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
Click for Map
Sat -- 02:32 AM EDT     2.87 feet High Tide
Sat -- 06:10 AM EDT     Sunrise
Sat -- 09:30 AM EDT     1.29 feet Low Tide
Sat -- 10:50 AM EDT     Moonset
Sat -- 02:34 PM EDT     3.07 feet High Tide
Sat -- 08:08 PM EDT     Sunset
Sat -- 10:04 PM EDT     0.93 feet Low Tide
Sat -- 10:59 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.92.42.82.92.72.421.71.41.31.31.62.12.633.12.92.52.11.61.310.91.1

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland (2)
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Havre de Grace
Click for Map
Sat -- 01:39 AM EDT     2.41 feet High Tide
Sat -- 06:10 AM EDT     Sunrise
Sat -- 08:02 AM EDT     1.07 feet Low Tide
Sat -- 10:50 AM EDT     Moonset
Sat -- 01:41 PM EDT     2.57 feet High Tide
Sat -- 08:08 PM EDT     Sunset
Sat -- 08:36 PM EDT     0.77 feet Low Tide
Sat -- 10:59 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.12.42.42.221.61.31.11.11.21.41.82.22.52.62.42.11.71.310.80.811.4

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 State College, PA (5,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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weather_mapweather_map weather_map

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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.