Monday, June26, 2017 L-36.com


Marine Weather and Tides
Washington Boro, PA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:36AMSunset 8:39PM Monday June 26, 2017 6:30 PM EDT (22:30 UTC) Moonrise 7:32AMMoonset 9:54PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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- 432 Pm Edt Mon Jun 26 2017
Rest of this afternoon..SW winds 10 kt. Waves 1 ft.
Tonight..NW winds 5 to 10 kt. Waves 1 ft.
Tue..W winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Tue night..NW winds 5 to 10 kt. Waves 1 ft or less.
Wed..W winds 5 kt. Waves flat.
Wed night..S winds 5 to 10 kt. Waves 1 ft.
Thu..SW winds 10 to 15 kt. Waves 1 to 2 ft.
Fri..SW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 432 Pm Edt Mon Jun 26 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build west of the area through Tuesday. A weak cold front will cross the waters Tuesday. High pressure will move over the area Wednesday before shifting offshore Thursday. Small craft advisory conditions are possible over portions of the waters Tuesday and again Thursday.

7 Day Forecast for Marine Location Near Washington Boro, PA
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location: 40, -76.49     debug


Area Discussion for - State College, PA
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Fxus61 kctp 262140
afdctp
area forecast discussion
national weather service state college pa
540 pm edt Mon jun 26 2017

Synopsis
A long wave trough over the great lakes and eastern canada will
deepen across the region. This feature will keep it cooler than
normal into Wednesday. Scattered showers and thunderstorms will
be across the region this afternoon and evening and again on
Tuesday, especially across the northern part of the keystone
state during the afternoon hours. A warm up and return of higher
humidity levels will occur on Thursday and Friday, as high
pressure moves off the east coast. While temperatures will
average near to above normal for the second half of the week,
there will be occasional showers and thunderstorms.

Near term until 11 pm this evening
Dewpoints have dropped back into the 40s over the entire area
this afternoon with deep mixing. Temps aloft are chilly for
late june and have allow an expansive CU field to pop. Only a
few places of which look like moderate or towering CU have been
able to grow - probably due to the lack of moisture. There is
also a lack of a trigger to make the low level kick necessary to
overcome any cin. The earlier boundaries from the over-lake
convergence are likely what is still helping to puff up the
storms in the nw. Coverage will be greatest in the NRN mtns
where 70-80 pops have been painted. Timing will be centered
around 21-22z in the nc cent mtns with a bell curve around then
earlier in the NW and later in the NE ec counties. Showers
should diminish with loss of heating but they could linger a few
hours after sunset in the NE poconos.

Short term 11 pm this evening through 6 pm Tuesday
Another round of nocturnal-mid-lake-convergence-driven-
convection could pop up overnight. But, guidance also whips a
strong short wave trough through the upper great lakes and
pushes showers and thunderstorms over the second half of the
night into WRN pa. These may reach into the laurels alleghenies
by morning and have placed low chc pops there. It will likely
be cooler tonight than Mon am, but the varying cloud cover could
help keep temps up. Some fog is possible in the valleys where
they do get some rain this evening.

Tuesday may hold a few less showers in the aftn with the
negative suppressing influence of the rising heights behind the
strong short wave passing overhead (and the related cloud cover
and any showers) in the morning. The afternoon heating and cool
air aloft will still generate sct showers in the NRN tier. Max
temps will be similar to Monday or even a few degs f cooler
factoring in chaotic cloud cover in the morning. On the other
hand... With the length of the daylight in late june, the Sun can
can overcome a late start to cook up temps.

Long term Tuesday night through Monday
Trough axis moves through on tue, with secondary trough sliding
through Tue night as high pressure builds at the surface. This
will keep just very low pops mentioned in the NW mtns during the
evening. With clearing skies, NW flow and light winds, and
dewpoints in the mid 40s to lower 50s, Wed morning will be the
chilliest one of the week as lows should drop to near dewpoints.

With plenty of sun, temps will rebound during the day back into
the 70s.

As the high moves off the east coast by Thursday, a warm front
will lift across pa ushering in a southwest flow of warmer and
noticably more humid air. Lows Thu morning will be about 10f
warmer than the day before, and daytime highs will bump up about
4-8f as well.

Upper flow becomes zonal late week as a surface low tracks
across the northern great lakes and southern canada, which will
focus a stationary front across that region. We'll remain on the
warm humid side of that boundary (as highs rise to near 80 nw
and 90 SE along with muggy overnight), and see convective
activity increase Thu heading in the weekend - with highest
likelihood over the nw. Convection will be more scattered over
the se.

Active pattern continues Sun into Mon as another low rides along
the persistent frontal boundary to our west and north, finally
nudging that front into through pa and keeping mention of
showers in the forecast while taking some of the edge off of
the above normal temps.

Aviation 21z Monday through Saturday
Scattered showers and a few tsra should die out over northern pa
shortly after sunset with little chance of any restrictions.

Main threat will come overnight at bfd, where wet ground
combined with clearing skies and light wind could potentially
result in fog. For now, am banking on just enough of a breeze to
preclude fog issues at bfd, but will be monitoring for possible
low visibilities after midnight. Elsewhere, confidence is high
for widespreadVFR conditions for most of the night.

A weak frontal boundary will push through the region early
Tuesday morning, accompanied by a few showers. Lack of moisture
with this system should translate to a continuation ofVFR
conditions for much of central pa. However, brief MVFR cig vis
reductions appear possible at bfd jst between 09z-14z. High
pressure and associated dry air mass will build into the region
later Tuesday, accompanied by widespreadVFR conditions.

Outlook
Wed...VFR.

Thu...VFR early, then sct afternoon shra tsra nw.

Thu pm-sat... Sct-nmrs shra tsra.

Equipment
Kccx radar is back on line and in normal operation.

Ctp watches warnings advisories
None.

Synopsis... Dangelo
near term... Dangelo
short term... Dangelo
long term... Rxr
aviation... Dangelo fitzgerald
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44057 - Susquehanna, MD 39 mi31 min WSW 9.7 G 12 79°F 81°F1015.8 hPa (-1.2)
CHCM2 - 8573927 - Chesapeake City, MD 49 mi43 min SW 6 G 8 1016.4 hPa
BLTM2 - 8574680 - Baltimore, MD 51 mi43 min WSW 2.9 G 11 81°F 79°F1015.3 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 54 mi43 min S 2.9 G 4.1 79°F 1015.6 hPa

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lancaster, Lancaster Airport, PA13 mi38 minW 1110.00 miA Few Clouds78°F48°F36%1015.5 hPa
York, York Airport, PA21 mi38 minWSW 710.00 miFair77°F50°F39%1015.5 hPa
Harrisburg, Harrisburg International Airport, PA21 mi95 minW 610.00 miPartly Cloudy77°F48°F37%1015.7 hPa

Wind History from LNS (wind in knots)
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Last 24hrW8W12W9W7W5W6CalmW3W4------CalmW5NW8W9W63W7W9W12
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1 day agoW11W8SW7SW8SW7W5W5W4W4W4W4CalmW5NW3W8NW3NW5NW5W8
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2 days agoSW12
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E3CalmNW7NW5W7W6W10W16
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Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
Click for Map
Mon -- 12:41 AM EDT     2.54 feet High Tide
Mon -- 05:38 AM EDT     Sunrise
Mon -- 07:29 AM EDT     0.50 feet Low Tide
Mon -- 08:31 AM EDT     Moonrise
Mon -- 01:09 PM EDT     3.97 feet High Tide
Mon -- 08:36 PM EDT     Sunset
Mon -- 09:20 PM EDT     0.61 feet Low Tide
Mon -- 10:51 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.52.321.51.10.70.50.611.82.83.643.93.532.41.81.30.90.60.71.3

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland
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Havre de Grace
Click for Map
Mon -- 05:38 AM EDT     Sunrise
Mon -- 06:09 AM EDT     0.24 feet Low Tide
Mon -- 08:31 AM EDT     Moonrise
Mon -- 11:59 AM EDT     2.92 feet High Tide
Mon -- 07:28 PM EDT     0.11 feet Low Tide
Mon -- 08:35 PM EDT     Sunset
Mon -- 10:50 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.11.91.61.20.80.40.20.40.81.52.22.72.92.82.421.40.90.40.10.20.51.11.6

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for State College, PA (18,4,5,8)
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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 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.