Sunday, July5, 2020
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Marine Weather and Tides
Trevorton, 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 5:40AMSunset 8:40PM Sunday July 5, 2020 2:22 AM EDT (06:22 UTC) Moonrise 8:28PMMoonset 4:53AM Illumination 100% Phase: Full Moon; Moon at 14 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- 157 Am Edt Sun Jul 5 2020
Overnight..SW winds 5 kt. Waves less than 1 ft.
Sun..SW winds 5 to 10 kt. Waves 1 ft.
Sun night..SW winds 5 kt. Waves less than 1 ft.
Mon..SW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
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.
Tue night..S winds 5 to 10 kt. Waves 1 ft.
Wed..S winds 5 to 10 kt. Waves 1 ft.
Thu..SE winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 157 Am Edt Sun Jul 5 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A weak front stalled near the area will weaken tonight into Sunday. High pressure over the atlantic will control the weather pattern for the early and middle portion of next week. Low pressure will pass by to the south during this time.


7 Day Forecast for Marine Location Near Trevorton, PA
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location: 40.75, -76.74     debug


Area Discussion for - State College, PA
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FXUS61 KCTP 050545 AFDCTP

Area Forecast Discussion National Weather Service State College PA 145 AM EDT Sun Jul 5 2020

SYNOPSIS. A hot and dry summertime pattern will continue across central PA through at least the next week. Most areas will see little to no rainfall for the next several days.

NEAR TERM /UNTIL 6 AM THIS MORNING/. All showers in my CWA have collapsed at this hour, while an isolated cell has fired over Luzerne County just to the east as the sun starts to set. Still the slightest chance of a shower over the next hour or so, but 99% of the area is done for the day. After sunset, expect clear skies and mild temperatures through the overnight. Mins will range from the upper 50s northwest to the upper 60s southeast.

SHORT TERM /6 AM THIS MORNING THROUGH 6 PM MONDAY/. Hot and dry weather continues on Sunday. Cannot rule out a popup isolated shower or thunderstorm, though mid level warming should prevent anything from being widespread. Fair weather last through Sunday night with humidity creeping upward and min temps remaining in the upper 50s north to the upper 60s southeast.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. Saturday evening update . Anomalous, high amplitude ridge moving east from the Central U.S. and Upper Miss Valley will flatten out as it reaches the Appalachians by Tuesday and Wednesday of next week. This weather feature will bring an increase in heat, along with an uptick in humidity.

A chance for a mid afternoon to early evening shower or thunderstorm can't be ruled out as we head into the middle of next week as minor disturbances aloft slide by near or just to the north of the region.

Much of central PA will have a shot at reaching 90 degrees for max temps for much of next week. There is still uncertainty on just how many days of 90 degree plus temperatures any one spot will string together, as cloud cover and pop up showers or thunderstorms could keep temps down a few degrees. Please see the climate section below for details on past heat waves in central PA.

Longer range guidance hints at a weakness under the ridge and maybe a coastal low developing by next weekend. As an upper trough digs down towards the low, there will be a chance for unsettled weather next weekend.

AVIATION /06Z SUNDAY THROUGH THURSDAY/. With less numerous showers on Saturday afternoon compared to Friday afternoon, expect less visibility reductions through daybreak Sunday. Prevailing VFR expected at all sites. Brief reductions to MVFR vis possible in western airfields but not enough confidence to include in prevailing group for any site.

Any visibility reductions will rapidly improve after sunrise. High pressure will pass directly over Central PA Sunday afternoon, suppressing almost all cloud development and eliminating any chance for precipitation. Expect several locations to remain cloud-free for much of the day and, at most, scattered fair weather cumulus across southwest airfields.

Outlook .

Mon-Thu . Hot daytime temperatures will persist through the week. Isolated SHRA/TSRA possible, mainly afternoon and early evening hours.

CLIMATE. A sustained period of above-average temperatures is expected over the next 7 to 10 days. A heat wave is defined as 3 or more days with temperatures greater than or equal to 90 degrees. Here are some facts about previous heat waves from Harrisburg (MDT) Williamsport (IPT), and State College (STC), which have climate periods of record dating back to the late 1800s.

Longest stretch of consecutive 90 degree days: IPT: 15 (July 4 - July 18, 1988) MDT: 11 (5 times, most recently July 22 - August 1, 1999) STC: 15 (July 4 - July 18, 1988)

Annual occurrences of 90 degree days: Average Most (Year) Least (Year) 2020 (thru 7/4) IPT 16 42 (1988) 0 (1979) 4 MDT 20 60 (1966) 3 (2004) 5 STC 8 35 (1988) 0 (11 times) 1* *Highs at STC are officially reported the next morning, whereas the others are reported at midnight.

How common are stretches of 5 or more consecutive 90 degree days? IPT: 15 times since 2000 (12 of 20 years) MDT: 19 times since 2000 (12 of 20 years)* STC: 4 times since 2000 ( 4 of 20 years)

*MDT had a stretch of 10 straight 90 degree days from July 3 - July 12, 2012. If highs on Saturday and Sunday can hit 90 degrees, we could make a run at 10 straight days exactly 8 years later.

CTP WATCHES/WARNINGS/ADVISORIES. None.

SYNOPSIS . Ross/DeVoir NEAR TERM . Ross/DeVoir SHORT TERM . Ross/DeVoir LONG TERM . DeVoir/Colbert/Travis AVIATION . Banghoff CLIMATE . Banghoff


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRCP1 - 8540433 - Marcus Hook, PA 96 mi53 min 75°F 81°F1013.9 hPa
CHCM2 - 8573927 - Chesapeake City, MD 98 mi53 min SSE 1 G 1.9 73°F 83°F1014.3 hPa

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Selinsgrove Penn Valley Airport, PA8 mi30 minN 08.00 miFair68°F64°F90%1014.3 hPa
Muir Army Air Field / Indiantown, PA23 mi27 minN 010.00 miFair67°F63°F88%1014.1 hPa

Link to 5 minute data for KSEG

Wind History from SEG (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmNW44CalmSE5E6--CalmCalmNE3CalmCalmNW3CalmCalmCalmCalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmNW63NW66NW9
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N63NW3CalmCalmCalmCalmCalm
2 days agoW3CalmCalmCalmCalmCalmCalmCalmE3NE7NE6NW10--NW8NW10
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Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
Click for Map
Sun -- 12:44 AM EDT     Full Moon
Sun -- 05:31 AM EDT     0.48 feet Low Tide
Sun -- 05:43 AM EDT     Sunrise
Sun -- 05:54 AM EDT     Moonset
Sun -- 11:35 AM EDT     4.04 feet High Tide
Sun -- 07:54 PM EDT     0.82 feet Low Tide
Sun -- 08:35 PM EDT     Sunset
Sun -- 09:21 PM EDT     Moonrise
Sun -- 11:44 PM EDT     2.26 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.11.81.410.70.50.50.91.62.63.5443.83.42.92.31.81.30.90.81.11.72.1

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland
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Havre de Grace
Click for Map
Sun -- 12:44 AM EDT     Full Moon
Sun -- 04:22 AM EDT     0.29 feet Low Tide
Sun -- 05:43 AM EDT     Sunrise
Sun -- 05:54 AM EDT     Moonset
Sun -- 10:22 AM EDT     2.88 feet High Tide
Sun -- 05:58 PM EDT     0.16 feet Low Tide
Sun -- 08:34 PM EDT     Sunset
Sun -- 09:20 PM EDT     Moonrise
Sun -- 11:13 PM EDT     1.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.30.90.50.30.40.71.322.62.92.82.62.21.71.20.70.30.20.30.81.31.71.9

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 State College, PA (2,6,7,8)
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Ground Weather Radar Station State College, PA
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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.