Saturday, February27, 2021
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Marine Weather and Tides
Camp Hill, PA

Version 3.4
NOTICE
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 6:41AMSunset 5:58PM Saturday February 27, 2021 5:22 AM EST (10:22 UTC) Moonrise 6:28PMMoonset 7:17AM Illumination 100% Phase: Full Moon; Moon at 15 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- 430 Am Est Sat Feb 27 2021
Rest of the overnight..E winds 10 kt. Waves 1 ft. Rain. Vsby 1 to 3 nm.
Today..SW winds 5 to 10 kt. Waves 1 ft. Rain. Vsby 1 to 3 nm.
Tonight..N winds 5 kt. Waves less than 1 ft. A chance of rain.
Sun..E winds 5 kt. Waves less than 1 ft. Rain.
Sun night..N winds 5 kt...becoming W after midnight. Waves 1 ft or less. Rain.
Mon..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. Rain.
Mon night..NW winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Tue..NW winds 10 to 15 kt...becoming sw 5 kt. Waves 1 to 2 ft.
Wed..W winds 5 kt. Waves less than 1 ft. A chance of rain in the morning.
ANZ500 430 Am Est Sat Feb 27 2021
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure over southeastern virginia will move out to sea today. Another wave of low pressure will follow taking a bit further north track across the region Sunday. High pressure will build from the northeast toward the middle atlantic Monday into Tuesday. Small craft advisories may be needed for portions of the waters Sunday. Gale conditions are possible late Monday into early Tuesday.


7 Day Forecast for Marine Location Near Camp Hill , PA
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location: 40.24, -76.93     debug


Area Discussion for - State College, PA
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FXUS61 KCTP 270924 AFDCTP

Area Forecast Discussion National Weather Service State College PA 424 AM EST Sat Feb 27 2021

SYNOPSIS. High pressure will track east of the area this evening. A weak area of low pressure lifting up the east coast and an upper level disturbance approaching from the Ohio River Valley tonight into Saturday will bring wet snow or mixed precipitation, changing to some rain showers Saturday morning. Light snow accumulations of mainly an inch or less are expected by sunrise Saturday.

An area of high pressure will bring fair and dry weather for Saturday afternoon and the first half of Sat night. Another weak area of low pressure and associated warm front will bring periods of rain Sunday as it pass just south of Pennsylvania. Colder temperatures will work into the area late Monday into Tuesday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. All guidance tracks a weak area of low pressure up the east coast late tonight into Saturday. Although the large scale forcing looks unimpressive, the combination of the weak low and anomalous high pressure off of the New England coast will result in an increasingly moist southeast flow overrunning a relatively cool, stable air mass across Pa. At 03Z, light precipitation has overspread southern Pa and near term models indicate it will reach the northern tier around 06Z.

Model thermal profiles and latest surface temps suggest precip will begin as light rain in the valleys of southern Pa this evening then change to snow due to evaporational cooling. A transition from snow to rain is expected across the state from south to north late tonight, as warmer air works in.

The best chance of a light accumulation of an inch or two of snow is over the high terrain of central and northern Pa, where orographic forcing will be the greatest and where surface temperatures are likely to be just below freezing. Elsewhere, surface temperatures above freezing should limit accumulations to a coating at best. Only spotty trace amounts of fzra are expected on some ridgetop areas, and collab with BGM and PHI yielded consensus to hold off on any headlines.

The deepest moisture is progged to shift east of the region by 12Z Saturday. However, a nearly saturated 0-1km layer, supports lingering light rain/drizzle during the morning hours. Expect brightening skies during the afternoon, as weak low lifts into New England and boundary layer flow shift from southeast to west across Pa.

Low level chilly air should be scoured out with arrival of occluded front, resulting in temperatures rising well above seasonal averages during the afternoon. Latest NBM supports highs from the mid 40s over the northern mountains, to the mid 50s in the valleys of southern Pa.

SHORT TERM /6 PM THIS EVENING THROUGH MONDAY NIGHT/. Mainly dry Saturday night. Looks like precipitation holds off until Sunday morning across northern PA, when temperatures can edge back above freezing.

Another fast moving system passing south of the area on Sunday will bring a quick half inch of rain to the southern PA on Sunday. Rivers could rise about 2 feet. Less rainfall across the north, where the snowpack is deeper. Rain and snow could result in some fog at times.

A stronger cold front will drop southeast into the northwest late Monday. I did up the chance of snow showers late some.

LONG TERM /TUESDAY THROUGH FRIDAY/. High confidence of fair and seasonably chilly weather Tuesday, when all guidance tracks surface high and low-pwat air mass across Pa. The bulk of medium range guidance tracks a southern stream shortwave south of Pa Wednesday, probably too far south to affect the forecast area. However, enough uncertainty to maintain low POPs for a bit of either rain or snow.

Latest ECENS and GEFS support fair and mild conditions Thursday associated with approaching high pressure and a flood of pacific air across the lower 48. Uncertainty ramps up by late next week. Have followed the bulk of guidance, which supports a cold front passage and a chance of rain/snow showers Friday. Latest GFS maintains above average 500mb heights and fair weather across the area.

AVIATION /09Z SATURDAY THROUGH WEDNESDAY/. IFR cigs are widespread across central PA as of 09z, although a few sites are occasionally bouncing up to low-end MVFR cigs. Steady precipitation is confined to locations from the Susq Valley eastward, with light snow across the north and light rain across the south.

Steadier precip will pull northeast of the area this morning and winds will gradually become more westerly, allowing cigs to begin to improve to the southeast of the Allegheny Front. Low cigs and scattered showers will linger the longest across the western highlands /BFD and JST/.

Outlook .

Tonight-Sun . Another round of steady rain will develop from southwest to northeast tonight and continue into Sunday.

Monday-Mon night . Lingering showers tapering off early Monday. Snow showers possible Mon eve/night across nrn PA.

Tuesday . Generally VFR.

Wed . Light rain or wintry mix possible across far south.

CTP WATCHES/WARNINGS/ADVISORIES. None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BLTM2 - 8574680 - Baltimore, MD 70 mi52 min E 8.9 G 12 37°F 40°F1022.9 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 74 mi52 min NNE 8 G 8.9 37°F 1023.4 hPa
CHCM2 - 8573927 - Chesapeake City, MD 77 mi52 min E 4.1 G 6 36°F 39°F1024.5 hPa

Wind History for Baltimore, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harrisburg, Capital City Airport, PA4 mi26 minE 54.00 miLight Rain Fog/Mist34°F32°F92%1024.2 hPa
Harrisburg, Harrisburg International Airport, PA9 mi26 minE 64.00 miLight Rain Fog/Mist34°F31°F89%1024.1 hPa
York, York Airport, PA22 mi29 minNE 33.00 miLight Rain Fog/Mist33°F31°F92%1023.8 hPa
Muir Army Air Field / Indiantown, PA24 mi26 minN 03.00 miLight Rain Fog/Mist32°F32°F100%0 hPa

Link to 5 minute data for KCXY

Wind History from CXY (wind in knots)
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Last 24hrW4W3CalmSW3CalmCalm6E8E8E9E7E7E5E6E6S6S7SE7SE5E5E5E4E5E5
1 day agoNW11
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SW9W9NW11NW9W5W4W4W6W6W8W3NW4NW3NW5Calm
2 days agoSW4CalmSW3CalmCalmE46
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Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
Click for Map
Sat -- 03:19 AM EST     Full Moon
Sat -- 06:02 AM EST     0.03 feet Low Tide
Sat -- 06:40 AM EST     Sunrise
Sat -- 07:12 AM EST     Moonset
Sat -- 10:21 AM EST     1.78 feet High Tide
Sat -- 05:38 PM EST     -0.56 feet Low Tide
Sat -- 05:54 PM EST     Sunset
Sat -- 06:25 PM EST     Moonrise
Sat -- 11:06 PM EST     2.41 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.11.81.30.90.40.100.20.81.41.71.71.51.10.60.1-0.3-0.5-0.5-0.20.61.42.12.4

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland (2)
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Havre de Grace
Click for Map
Sat -- 03:19 AM EST     Full Moon
Sat -- 04:34 AM EST     0.02 feet Low Tide
Sat -- 06:39 AM EST     Sunrise
Sat -- 07:12 AM EST     Moonset
Sat -- 09:28 AM EST     1.49 feet High Tide
Sat -- 04:10 PM EST     -0.47 feet Low Tide
Sat -- 05:54 PM EST     Sunset
Sat -- 06:25 PM EST     Moonrise
Sat -- 10:13 PM EST     2.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.410.60.30.100.30.71.21.51.51.20.90.4-0-0.3-0.5-0.400.61.31.821.9

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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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.