Thursday, September23, 2021
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Marine Weather and Tides
Timber Hills, PA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:53AMSunset 7:02PM Thursday September 23, 2021 3:00 PM EDT (19:00 UTC) Moonrise 7:34PMMoonset 8:22AM Illumination 94% 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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ANZ530 Chesapeake Bay North Of Pooles Island- 136 Pm Edt Thu Sep 23 2021
.small craft advisory in effect from 6 pm this evening to midnight edt tonight...
This afternoon..W winds 5 to 10 kt. Waves 1 ft. Showers and tstms.
Tonight..NW winds 5 to 10 kt. Gusts up to 20 kt in the late evening and early morning. Waves 1 ft.
Fri..NW winds 5 to 10 kt. Waves 1 ft.
Fri night..NW winds 5 kt. Waves less than 1 ft.
Sat..NW winds 5 kt. Waves flat.
Sat night..SW winds 5 kt. Waves less than 1 ft.
Sun..W winds 5 to 10 kt. Waves 1 ft.
Mon..W winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 136 Pm Edt Thu Sep 23 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A strong cold front will continue to push through the region this morning as high pressure gradually builds back in from the west. High pressure will remain in control for the weekend. However a weak cold front may cross the region Saturday night where small craft advisories may be required for portions of the waters.


7 Day Forecast for Marine Location Near Timber Hills, PA
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location: 40.24, -76.51     debug


Area Discussion for - State College, PA
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FXUS61 KCTP 231806 AFDCTP

Area Forecast Discussion National Weather Service State College PA 206 PM EDT Thu Sep 23 2021

SYNOPSIS. A slow-moving cold front will push through eastern Pennsylvania today. High pressure will build into the region tonight and Friday, then another cold front is likely sweep southeast across the state late Saturday.

NEAR TERM /THROUGH TONIGHT/. Back edge of steady rain will exit far eastern Sullivan and Schuylkill Counties shortly, and remaining Flash Flood Watches have been cancelled. Creeks remain swollen from the widespread heavy rainfall, and minor flooding issues continue to be reported in several areas this afternoon. Isolated post fropa showers with negligible QPF are possible over the Alleghenies but

Farther west, arrival of drier air is bringing breaking clouds across the central third of PA, while self destruct stratocu has developed from sfc heating over western PA this afternoon. Mostly sunny conditions will move from the ridge/valley region into the Middle to Lower Susq in the mid to late afternoon hours.

SHORT TERM /FRIDAY/. Any lingering showers are expected to exit the eastern edge of the forecast area by this evening. High pressure and associated low-pwat air mass will build into the region tonight and Friday, bringing fair and cool conditions. The air mass crossing Lk Erie is cold enough to generate lake effect rain showers. However, a southwest flow in the boundary layer will keep that activity north of the forecast area. Mostly clear skies, light wind and wet ground will likely promote patchy valley fog toward dawn Friday.

Cool temps aloft should result in a fair amount of cumulus/stratocu across the northwest mountains Friday, while mostly sunny skies prevail elsewhere. Mixing down model 850mb temps yields expected highs ranging from the low 60s across the northern mountains, to around 70F across the Lower Susq Valley.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. The large-scale pattern at the beginning of the long-term will feature general troughiness over the northeastern United States and ridging over the west.

Long-range models are in fairly good agreement in projecting a couple of shortwaves and weak surface cold fronts to cross Pennsylvania over the next 7 days, with the first cold front arriving late Saturday or Saturday night and the second arriving late Monday or Tuesday of next week. Each frontal passage will be accompanied by a chance of rain showers, although neither front will have a lot of moisture to work with. Both fronts will be followed by a reinforcing shot of cooler air.

The models then suggest the possibility of a closed upper-low cutting off from the main upper-level flow and sitting somewhere near Mid-Atlantic region late next week. Fortunately, this is well out into the future and we'll have plenty of time to watch it evolve.

AVIATION /18Z THURSDAY THROUGH TUESDAY/. Post-frontal cloud pattern per visible satellite loop looks very much like fall this afternoon with MVFR and low VFR cigs across the western 3/4 of the airspace. Expect this pattern to continue tonight into Friday with sct-bkn cigs in the 2500-5000kft range. Wind gusts 15-20kts from 220-260 degrees this afternoon will fade tonight before picking back up by midday Friday.

Outlook .

Sat . P.M. showers possible mainly western 1/2.

Sun . No sig wx.

Mon-Tue . Passing shower possible.

CTP WATCHES/WARNINGS/ADVISORIES. None.

SYNOPSIS . DeVoir/Fitzgerald NEAR TERM . DeVoir/Fitzgerald SHORT TERM . DeVoir/Fitzgerald LONG TERM . Evanego AVIATION . Steinbugl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHCM2 - 8573927 - Chesapeake City, MD 62 mi42 min W 4.1 G 6 65°F 76°F1011.3 hPa
MRCP1 - 8540433 - Marcus Hook, PA 65 mi42 min 70°F 74°F1010.2 hPa
BLTM2 - 8574680 - Baltimore, MD 67 mi42 min SSW 1.9 G 4.1 70°F 77°F1010.3 hPa

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muir Army Air Field / Indiantown, PA14 mi64 minWSW 410.00 miMostly Cloudy67°F59°F75%1010.8 hPa
Lancaster, Lancaster Airport, PA14 mi67 minWNW 610.00 miOvercast66°F60°F81%1011 hPa
Harrisburg, Harrisburg International Airport, PA14 mi64 minN 010.00 miMostly Cloudy70°F58°F66%1010.6 hPa
Harrisburg, Capital City Airport, PA18 mi64 minN 010.00 miA Few Clouds73°F60°F64%1010.6 hPa

Link to 5 minute data for KLNS

Wind History from LNS (wind in knots)
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1 day agoSE10SE11SE8E4E3E4E4E4E3E4E3E3E3E4SE6SE7SE4SE8SE14SE10SE8S9
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2 days agoSE10S10SE7S7S4SE6SE5SE4E4E3NE4E4E5E4CalmE4E4E4E6E9SE7SE8SE13
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Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
Click for Map
Thu -- 12:45 AM EDT     3.28 feet High Tide
Thu -- 06:53 AM EDT     Sunrise
Thu -- 08:13 AM EDT     1.14 feet Low Tide
Thu -- 09:20 AM EDT     Moonset
Thu -- 12:51 PM EDT     2.97 feet High Tide
Thu -- 06:59 PM EDT     Sunset
Thu -- 08:03 PM EDT     0.80 feet Low Tide
Thu -- 08:32 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.13.33.12.82.41.91.61.31.11.21.72.32.832.82.521.61.20.90.811.52.2

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland (2)
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Havre de Grace
Click for Map
Thu -- 06:45 AM EDT     0.94 feet Low Tide
Thu -- 06:53 AM EDT     Sunrise
Thu -- 09:20 AM EDT     Moonset
Thu -- 11:58 AM EDT     2.49 feet High Tide
Thu -- 06:35 PM EDT     0.66 feet Low Tide
Thu -- 06:59 PM EDT     Sunset
Thu -- 08:32 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.72.62.31.91.51.2111.11.522.42.52.42.11.71.20.90.70.70.91.41.92.4

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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