Saturday, June24, 2017 L-36.com


Marine Weather and Tides
Trevorton, PA

Version 3.4
What's New / NOTES
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 5:35AMSunset 8:41PM Saturday June 24, 2017 1:26 AM EDT (05:26 UTC) Moonrise 5:19AMMoonset 8:15PM Illumination 0% Phase: New Moon; Moon at 0 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- 1032 Pm Edt Fri Jun 23 2017
.small craft advisory in effect until midnight edt tonight...
.gale warning in effect until 8 am edt Saturday...
.small craft advisory in effect from 8 am edt Saturday through Saturday afternoon...
Rest of tonight..SW winds 15 to 20 kt. Gusts up to 25 kt... Increasing to 35 kt late. Waves 1 to 2 ft...except around 1 ft or less near the mouth of the susquehanna. Numerous showers with isolated tstms late this evening, then showers with isolated tstms. Vsby 1 nm or less.
Sat..W winds 10 to 15 kt. Gusts up to 30 kt... Diminishing to 20 kt in the late morning and afternoon. Waves 1 to 2 ft. A chance of showers.
Sat night..NW winds 5 to 10 kt. Gusts up to 20 kt early in the evening. Waves 1 ft.
Sun..W winds 5 to 10 kt. Waves 1 ft or less.
Sun night..W winds 5 to 10 kt. Waves 1 ft.
Mon..W winds 5 to 10 kt. Waves 1 ft or less.
Mon night..W winds 5 kt. Waves less than 1 ft.
Tue..NW winds 5 to 10 kt. Waves 1 ft.
Wed..SW winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1032 Pm Edt Fri Jun 23 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. The remnants of cindy will track over the area tonight. A weak secondary front will cross Sunday before high pressure returns early next week. Small craft advisory conditions are possible Sunday.

7 Day Forecast for Marine Location Near Trevorton, PA
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location: 40.75, -76.74     debug


Area Discussion for - State College, PA
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Fxus61 kctp 240354
afdctp
area forecast discussion
national weather service state college pa
1154 pm edt Fri jun 23 2017

Synopsis
The combination of an approaching frontal system and the
remnants of tropical storm cindy will funnel a plume of deep
tropical moisture bringing a steady rain to southern
pennsylvania tonight. Occasional lighter showers are expected
across the northwest half of the state through the first half of
tonight. The cold front will push east across the region during
the morning Saturday, followed by drier and cooler air with
comfortable humidity that will last through much of next week.

Near term until 6 am Saturday morning
Showers are becoming more numerous once again as the leading
edge of the deep plume of tropical moisture begins to drift
across southwestern and south-central pa.

Moderate surface and ml instability persists across the lower
susq valley this evening, and a few brief, strong tsra should
race quickly ene across that region within the strongly sheared
llvl environment.

Temps are still in the mid to upper 70s across the lower and
middle susq valley, while reading across the central, northern
and western mtns are in the mid 60s to low 70s.

Analysis shows pwats exceeding 2" (2-4 sigma) in a wide plume
from the louisiana gulf coast up into central pa, and moisture
transport vectors indicate a continued advection of this
tropical airmass into our region.

After a few to several more tenths of an inch of rainfall across
the central and NRN mtns, with up to an additional 0.50-1.00
inch over the southern tier counties of pa, there could be some
minor flooding problems across the laurels and southern tier
counties. However, large scale outflow boundary(s) (seen on
satellite animation and regional 88d mosaic) were driving the
stronger heavier rain producing convection to the south of the
state tonight.

With the steadiest and heaviest tropical rains (and embedded
taller convection) impacting the SW counties of the state attm,
and the cfront just making its way inland of lake erie's se
shore, will maintain high pops throughout the first half of
tonight.

The most vulnerable area for heavy to possibly excessive rain
amounts, it looks to be the laurels where instability will
combine with terrain bringing enhanced lift causing localized
heavier amounts. As a result we will continue the flash flood
watch through 09z Sat for our swrn 4 counties.

Short term 6 am Saturday morning through 6 pm Saturday
Conditions will improve rapidly Saturday morning as the deep
moisture speeds eastward. NHC expects whatever is left of cindy
to be on the md coast by 8am so the best of the rain will be
over with drier air sweeping in behind the departing low and
cold front.

Long term Saturday night through Friday
Models have trended toward much better agreement with the
evolution of the seasonably strong large scale upper trough over
the eastern u.S. A couple of shortwave impulses reflecting weak
surface fronts or troughs will provide a limited mainly diurnal
opportunity for widely scattered showers isolated low- topped
thunderstorms Sunday-Tuesday. However, much of the this period
will be pleasant and dry with below normal pw supporting low
humidity and below normal temperatures relative to late june
climatology.

The trough is fcst to lift out and leave a more zonal pattern by
the middle of the week, followed by a resurgence of the
southeast u.S. Upper ridge. Models and ensembles show the ridge
breaking down in the west as a trough shifts east across the
rockies into the plains. Southerly flow increasing ahead of its
attendant frontal system should result in an upward warmer trend
in temperatures accompanied by low level moisture humidity.

Expect MAX min temps to get back to seasonal levels around
midweek and likely reaching above normal levels by next Friday.

Aviation 04z Saturday through Wednesday
Wide range of flying conditions continue to prevail across
central pennsylvania this evening 04z . Much better than
previously forecast, withVFR conditions existing at most taf
locations, with the exception being kbfd.

One last surge of rain and embedded convection will make a run
at southern tier and southeastern counties before rapidly
winding down after 08z 09z time frame. Hrrr would lead us to
believe that last of any significant rain will be exiting
eastern portions of central pennsylvania around 10z.

Moist low levels and upward flow will likely bring or keep
western airfields under low ceiling restrictions until the
14z time frame, but elsewhere, conditions could beVFR by 10z-
12z.

With rain moving off quickly Saturday morning, a brisk west-
northwest wind and a quick return toVFR conditions is
anticipated.

Outlook
Sat... Scattered restrictions in am showers... Otherwise becoming
vfr.

Sun... MainlyVFR.

Mon-tue... MainlyVFR, but with a chance of shra tsra.

Wed...VFR.

Equipment
Kccx radar will be offline for approximately 4 days starting
Saturday, june 24th for technicians to install the first of 4
major service-life extension upgrades. The work on the radar has
been scheduled to minimize potential impacts to operations and
will be delayed if hazardous weather is forecast.

Ctp watches warnings advisories
Flash flood watch until 5 am edt Saturday for paz024-025-033-
034.

Synopsis... La corte lambert
near term... La corte lambert
short term... La corte
long term... Steinbugl
aviation... Jung
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRCP1 - 8540433 - Marcus Hook, PA 96 mi44 min 82°F 1003.4 hPa
CHCM2 - 8573927 - Chesapeake City, MD 98 mi38 min S 8 G 13

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Selinsgrove Penn Valley Airport, PA8 mi33 minVar 410.00 miLight Rain72°F71°F97%1004 hPa
Muir Army Air Field / Indiantown, PA23 mi28 minSW 310.00 miLight Drizzle71°F71°F100%1004 hPa

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Last 24hrCalmCalmCalmCalmCalmCalmCalmS5S6S6SW5S6S53S5S8SW6S4CalmCalmS4SW4SW34
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm4--46
G15
4S5NW3CalmS3S5SW3CalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalm4S935CalmCalm6W4NW4CalmW3CalmN3CalmCalm

Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
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Sat -- 05:33 AM EDT     0.34 feet Low Tide
Sat -- 05:37 AM EDT     Sunrise
Sat -- 06:19 AM EDT     Moonrise
Sat -- 11:25 AM EDT     4.20 feet High Tide
Sat -- 07:43 PM EDT     0.64 feet Low Tide
Sat -- 08:35 PM EDT     Sunset
Sat -- 09:09 PM EDT     Moonset
Sat -- 11:44 PM EDT     2.45 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.21.81.40.90.60.40.40.81.62.73.64.24.13.83.32.82.11.510.70.71.11.72.3

Tide / Current Tables for Charlestown, Northeast River, Maryland
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Charlestown
Click for Map
Sat -- 04:45 AM EDT     0.34 feet Low Tide
Sat -- 05:37 AM EDT     Sunrise
Sat -- 06:18 AM EDT     Moonrise
Sat -- 11:36 AM EDT     3.75 feet High Tide
Sat -- 06:33 PM EDT     0.66 feet Low Tide
Sat -- 08:35 PM EDT     Sunset
Sat -- 09:08 PM EDT     Moonset
Sat -- 11:42 PM EDT     2.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.91.61.10.70.40.30.61.11.82.63.33.73.73.42.92.21.610.70.70.91.41.82.1

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 (1,6,7,8)
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Ground Weather Radar Station State College, 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.