Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Harrisburg, PA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:25AMSunset 7:53PM Saturday August 24, 2019 12:16 AM EDT (04:16 UTC) Moonrise 12:00AMMoonset 2:05PM Illumination 39% Phase: Third Quarter Moon; Moon at 23 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- 1035 Pm Edt Fri Aug 23 2019
Rest of tonight..N winds 5 to 10 kt. Waves 1 ft or less.
Sat..NE winds 5 to 10 kt. Waves 1 ft.
Sat night..NE winds 5 to 10 kt. Waves 1 ft.
Sun..NE winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Sun night..NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Mon..NE winds 10 kt with gusts to 20 kt. Waves 1 ft.
Mon night..E winds 5 to 10 kt. Waves 1 ft.
Tue..SE winds 5 to 10 kt. Waves 1 ft or less.
Wed..NW winds around 5 kt. Waves 1 ft. A chance of tstms. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1035 Pm Edt Fri Aug 23 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will settle north of the waters this weekend. Low pressure off the florida coast will likely move northward offshore of the eastern seaboard early next week. Small craft advisories may be needed Sunday into Monday.


7 Day Forecast for Marine Location Near Harrisburg, PA
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location: 40.28, -76.89     debug


Area Discussion for - State College, PA
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Fxus61 kctp 240353
afdctp
area forecast discussion
national weather service state college pa
1153 pm edt Fri aug 23 2019

Synopsis
A large area of high pressure over the great lakes will drift
gradually to the east, reaching northern new england on Sunday.

This weather feature will bring us a several day string of dry
and cooler weather with low humidity right into early next week.

Near term until 6 am Saturday morning
Quiet weather pattern for the rest of the night with partly
cloudy skies and cool temperatures making for nice sleeping
weather just about everywhere in the cwa. A bit of patchy
ground fog by sunrise in the deepest valleys.

Short term 6 am Saturday morning through 6 pm Saturday
Fog burns away after an hour or two, and a mostly sunny day
results. Just a few CU over the mtns. Modified cp airmass
visits for the weekend. Tough to beat guidance on maxes on days
like sat. Mixing gets up near 8h where temps are 6-9c. We should
end up in the u60s across the higher hill tops of the west and
north, and m70s in the warmer valleys of the east. These values
are generally 4-8f below normal.

Long term Saturday night through Friday
Patchy valley fog is possible once again Saturday night, as high
pressure provides mainly clear skies and light winds. Any fog
should burn off quickly Sunday morning, giving way to partly to
mostly sunny skies. Temperatures will remain slightly below
normal for late-august.

Heading into next week, the main question will be how quickly
return flow develops and brings moisture back into the area.

The GFS continues to be a bit more bullish, although it is
slowly coming more in line with the ECMWF in keeping central pa
mainly dry until Tuesday. Given the uncertainty, went with a
model blend and gradually increase pops later Monday into
Tuesday. Pops should peak on Wednesday with a frontal passage,
with a drying trend for the later part of next week.

The temperature forecast is less certain early next week, as
an increasing southeasterly low-level flow may advect some
clouds into the area and result in another relatively cool day
on Monday. Some moderation in temps is expected ahead of an
approaching cold front tues into wed. Following the midweek
frontal passage, cooler and drier weather should return late
next week.

Aviation 04z Saturday through Wednesday
High pressure and associated dry air mass will build southeast
from the grt lks tonight and Saturday, providing the region with
mainlyVFR flying conditions and light north to northeast winds.

The only exception will be in the valleys of central pa, where
late night valley fog is very likely. Kbfd is the most likely
airfield to be affected, with odds of ifr conditions close to 50
percent. Latest lamp and namnest support onset of valley fog
around midnight and dissipation by around 14z Saturday.

Outlook
Sun... Am valley fog likely northern pa.

Mon... Am valley fog possible.

Tue... Am low CIGS possible.

Wed... Showers and am cig reductions possible.

Ctp watches warnings advisories
None.

Synopsis... Ross dangelo
near term... Ross dangelo
short term... Dangelo
long term... Evanego
aviation... Fitzgerald


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BLTM2 - 8574680 - Baltimore, MD 72 mi47 min NNE 8 G 11 70°F 83°F1018.1 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 76 mi47 min N 7 G 8 70°F 1018.5 hPa
CHCM2 - 8573927 - Chesapeake City, MD 77 mi47 min NNW 2.9 G 6 67°F 83°F1018.6 hPa

Wind History for Baltimore, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Harrisburg, Capital City Airport, PA4 mi2.3 hrsWSW 410.00 miFair64°F57°F81%1018.8 hPa
Harrisburg, Harrisburg International Airport, PA8 mi2.3 hrsN 010.00 miA Few Clouds64°F57°F81%1018.5 hPa
Muir Army Air Field / Indiantown, PA20 mi2.3 hrsN 010.00 miFair61°F56°F85%1019.1 hPa

Link to 5 minute data for KCXY

Wind History from CXY (wind in knots)
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Last 24hrW3W4N8N5N7CalmCalmN4NW4CalmCalmCalmSW3W4W4NW5NW6N5N6N3SW3SW4W4SW5
1 day agoCalmW3W5CalmW5W4W3W3W5W5W8W9W5W4SW6W7SW6SW5NW3N5CalmW3N5W5
2 days agoCalmSE3W3CalmCalmCalmCalmCalmW3CalmE5E4SE33S6S7CalmN8CalmCalmSW3W4CalmSW4

Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
Click for Map
Sat -- 12:17 AM EDT     Moonrise
Sat -- 05:36 AM EDT     3.49 feet High Tide
Sat -- 06:24 AM EDT     Sunrise
Sat -- 01:57 PM EDT     1.60 feet Low Tide
Sat -- 03:00 PM EDT     Moonset
Sat -- 05:27 PM EDT     2.34 feet High Tide
Sat -- 07:47 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.11.62.433.43.53.332.72.42.11.81.71.61.722.32.32.11.91.51.20.9

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland
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Havre de Grace
Click for Map
Sat -- 12:17 AM EDT     Moonrise
Sat -- 04:20 AM EDT     2.52 feet High Tide
Sat -- 06:24 AM EDT     Sunrise
Sat -- 11:37 AM EDT     0.59 feet Low Tide
Sat -- 03:00 PM EDT     Moonset
Sat -- 05:11 PM EDT     1.82 feet High Tide
Sat -- 07:47 PM EDT     Sunset
Sat -- 11:09 PM EDT     0.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.31.82.32.52.52.21.91.51.10.80.60.60.81.11.41.71.81.81.51.20.90.60.4

Weather Map and Satellite Images
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wmap_A
GOES 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 (0,6,7,8)
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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 numerious 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.