Monday, June26, 2017 L-36.com


Marine Weather and Tides
Lancaster, 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 1:15 PM EDT (17:15 UTC) Moonrise 7:32AMMoonset 9:53PM Illumination 7% 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- 1031 Am Edt Mon Jun 26 2017
Rest of today..W winds 10 to 15 kt with gusts to 20 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..W winds 5 to 10 kt. Waves 1 ft or less.
Wed..W winds 5 kt. Waves flat.
Wed night..S winds 5 kt. Waves less than 1 ft.
Thu..SW winds 10 to 15 kt. Waves 1 to 2 ft. A chance of showers through the night.
Fri..SW winds 5 to 10 kt. Waves 1 ft. A chance of tstms. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1031 Am 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 Lancaster, PA
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location: 40.04, -76.3     debug


Area Discussion for - State College, PA
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Fxus61 kctp 261428
afdctp
area forecast discussion
national weather service state college pa
1028 am edt Mon jun 26 2017

Synopsis
A long wave trough over the the great lakes and eastern canada
will deepen across the region today into Tuesday. This feature
will keep it cooler than normal into Wednesday. Scattered
showers and thunderstorms will be across the region today and
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, 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 9 pm this evening
Those hot le water temps are again bubbling convection as any
december day would, but the june temps and moisture are leading
to much taller showers and thunderstorms. These storms should
continue to drift inland but may decrease in coverage slightly
as they hit the temporarily stable land. CU already popping up
at 10am and destabilization should form additional numerous
showers and a few thunderstorms through the afternoon. The
heating may pop them first off the higher ground and where
moisture is highest - mainly where it may have rained
yesterday. Dewpoints will dip back to the 40s in lots of places
this afternoon, so the brief showers may barely make the ground
wet as they move along steadily. Coverage will be greatest in
the NRN mtns where 70-80 pops have been painted. Timing will be
centered around 22z in the nc cent mtns with a bell curve
around then earlier in the NW and later in the NE ec counties.

Temps will be a little cooler than Sun and certainly below
normal.

Short term 9 pm this evening through 6 pm Tuesday
Showers should diminish with loss of heating but they could
linger a few hours after sunset in the NE poconos. Another
round of nocturnal-mid-lake-convergence-driven-convection could
pop up. 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. But, most of the area will be clear
and cool off well. It will likely be cooler tonight and Mon am.

Tuesday may hold a few less showers in the aftn with the
negative influence of the rising heights behind the strong short
wave passing overhead in the morning. But, we could have
showers during a longer period (earlier) in the day than the
last few days. The afternoon heating and cool air aloft will
still generate showers in the NRN tier. MAX temps will be
similar to Monday.

Long term Tuesday night through Sunday
The trough will lift out and leave a more zonal pattern by
wed. As the high moves off the east coast by Thursday, a
southwest flow of warmer air will work into the area.

Expect MAX min temps to rise above normal levels for the
weekend along with an increase in convective activity -
especially over NW half of cwa. Convection will be more
scattered over the se.

Still a tendency to have an abnormally strong jet across
the northwest states so far this warm season. While this
may allow a warm up at times, the weather pattern is very
active for late june.

Aviation 14z Monday through Friday
Vfr will dominate the pattern today with winds picking up by
late morning, early afternoon. Showers will also develop
this afternoon, mainly across the north. I have included
categorical shra during the mid late day hours though conditions
should predominately remainVFR with perhaps short periods of
MVFR in showers.

Outlook
Tue... MainlyVFR, but scattered afternoon shra tsra north.

Wed...VFR.

Thu-fri... MainlyVFR, but isolated scattered afternoon shra tsra.

Equipment
Kccx radar work should be wrapping up later today - which would
be slightly ahead of schedule. There will be outages today as
alignments are completed after the installation of the first of
4 major service-life extension upgrades. Complete return to
regular service may be late today if all GOES well with the
checks alignments.

Ctp watches warnings advisories
None.

Synopsis... Dangelo
near term... Dangelo
short term... Dangelo
long term... Martin rxr
aviation... Dangelo ceru
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44057 - Susquehanna, MD 37 mi36 min WSW 5.8 G 9.7 76°F 1017.7 hPa
CHCM2 - 8573927 - Chesapeake City, MD 44 mi46 min W 2.9 G 12 75°F 82°F1018.2 hPa
DELD1 - 8551762 - Delaware City, DE 49 mi46 min WSW 2.9 G 9.9 77°F 77°F1017.8 hPa
MRCP1 - 8540433 - Marcus Hook, PA 50 mi46 min 75°F 1017.1 hPa

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lancaster, Lancaster Airport, PA6 mi83 minVar 310.00 miPartly Cloudy75°F48°F39%1017.9 hPa
Chester County Airport, PA23 mi41 minVar 5 G 1210.00 miMostly Cloudy73°F48°F41%1018.6 hPa

Wind History from LNS (wind in knots)
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Last 24hrW10W11--W11
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W8W12W9W7W5W6CalmW3W4------CalmW5NW8W9W63W7
1 day agoW12W11
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W10W11W8SW7SW8SW7W5W5W4W4W4W4CalmW5NW3W8NW3NW5NW5W8
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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 (13,3,4,5)
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Ground Weather Radar Station Philadelphia, PA
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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.