Thursday, May23, 2019 L-36.com


Marine Weather and Tides
Ranshaw, PA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 5:41AMSunset 8:23PM Thursday May 23, 2019 6:53 PM EDT (22:53 UTC) Moonrise 11:49PMMoonset 8:43AM Illumination 76% Phase: Waning Gibbous; Moon at 20 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- 435 Pm Edt Thu May 23 2019
.small craft advisory in effect until midnight edt tonight...
.small craft advisory in effect from Friday morning through Friday evening...
Rest of this afternoon..SW winds 10 kt with gusts to 20 kt. Waves 2 ft. Scattered showers.
Tonight..W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 to 2 ft. Scattered showers and tstms.
Fri..NW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Fri night..NE winds 5 to 10 kt. Waves 1 ft.
Sat..S winds 5 to 10 kt. Waves 1 ft.
Sat night..S winds 5 to 10 kt. Waves 1 ft.
Sun..NW winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms through the night.
Mon..N winds 5 to 10 kt...becoming se after midnight. Waves 1 ft. A chance of showers and tstms in the morning. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 435 Pm Edt Thu May 23 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will approach from the north through this evening before passing through overnight. High pressure will gradually build overhead Friday through Friday night and a warm front will approach the waters Saturday. A weak cold front will move in from the north Sunday, but it will likely stall out nearby through Monday. A small craft advisory will be needed for the waters Sunday and Monday.


7 Day Forecast for Marine Location Near Ranshaw, PA
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location: 40.77, -76.5     debug


Area Discussion for - State College, PA
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Fxus61 kctp 232125
afdctp
area forecast discussion
national weather service state college pa
525 pm edt Thu may 23 2019

Synopsis
A cold front will drop south across pennsylvania late this
afternoon and evening.

Cooler and dry weather will follow for Friday. The holiday
weekend will bring warmer temperatures, higher humidity and a
renewed chance for showers and storms at times. Memorial day
itself looks to offer up fantastic weather for much of the day
with near normal temperatures and comfortably lower humidity.

Near term until 6 am Friday morning
Visible satellite loop showing building cumulus ahead of
approaching cold front over northwest pa, while the rest of the
forecast area remains relatively stable in aftermath of earlier
convection. Near term model guidance indicating marginal
instability with capes near 1000 j kg as front pushes southeast
across the region between 23z-05z. Latest hrrr, NAM and
canadian all support the chance of an evening shower or storm
and given the strong wind fields aloft, still can not rule out
the threat of severe weather in a few spots.

Any scattered convection should end late this evening, as front
pushes south of the region and drier drier air sweeps in. Lows
will drop back into the comfortable 50s to lower 60s.

Short term 6 am Friday morning through 6 pm Friday
In the wake of the cold front, Friday looks breezy cooler and
drier.

The main issue will be a gusty NW wind.

Highs will be near to slightly above normal in the mid to upper
60s north and mid to upper 70s south.

Long term Friday night through Thursday
Some adjustments to the grids to match others and new guidance.

After a dry day on Friday, looking at some chance of showers
and storms on Saturday, mainly late across the north and west,
as low pressure lifts northeast toward james bay.

The cold front sags southward into our area on Sunday, keeping a
chance of showers and storms across the area into Sunday
evening.

Most if not all of memorial day looks to be dry.

Most of Tuesday looks to be dry, perhaps a shower or storm
across the north.

Wednesday and Thursday looks to be harder to time, as a deep
polar vortex starts to phase with the next cold front. Thus have
some chance of showers and storms in the fcst.

This activity could linger into late Thursday night, given a
complex system.

Maybe a risk of frost at some point after fropa, but that is
further out than our fcst extends at this point.

Have a good holiday weekend.

Aviation 21z Thursday through Tuesday
Scattered showers and thunderstorms into this evening could
produce brief reductions at central pa TAF sites. Otherwise,
conditions should generally beVFR.

The threat of showers ends from northwest to southeast late
this evening, with winds shifting around to the northwest.

Building high pressure will provideVFR conditions Friday under
partly to mostly sunny skies, and a breezy northwest wind could
gust 15-20 mph.

Humidity creeps back in this weekend, and cannot rule out a
scattered t-storm.

Outlook
Fri... Ceiling restrictions possible early nw, then mainlyVFR.

Sat... Restrictions possible near scattered tstms, mainly north.

Sun... Restrictions possible near scattered tstms, mainly west.

Mon-tues... GenerallyVFR, although a spotty showers or storm is
possible.

Ctp watches warnings advisories
None.

Synopsis... La corte lambert
near term... Fitzgerald la corte
short term... La corte lambert martin
long term... Martin
aviation... Evanego


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRCP1 - 8540433 - Marcus Hook, PA 88 mi41 min 72°F 64°F1013.3 hPa
PHBP1 - 8545240 - Philadelphia, PA 92 mi41 min 73°F 65°F1013.1 hPa
CHCM2 - 8573927 - Chesapeake City, MD 93 mi41 min W 7 G 9.9 77°F 70°F1014.3 hPa

Wind History for Philadelphia, PA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Selinsgrove Penn Valley Airport, PA19 mi60 minVar 510.00 miFair77°F66°F71%1012.1 hPa
Muir Army Air Field / Indiantown, PA23 mi2 hrsS 710.00 miMostly Cloudy77°F66°F70%1013.9 hPa

Wind History from SEG (wind in knots)
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Last 24hrSW5Calm3CalmCalmS333CalmNW3SE6CalmCalmS35S7666S3S5S1055
1 day agoN12N6CalmN6NE7N3NW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS7Calm5SW3S4
2 days ago3--4NW7NW14
G23
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G18
4NW6NW6NW7N9
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NW6N8--NW11N11
G15

Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
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Thu -- 02:29 AM EDT     2.25 feet High Tide
Thu -- 05:43 AM EDT     Sunrise
Thu -- 08:55 AM EDT     0.84 feet Low Tide
Thu -- 09:45 AM EDT     Moonset
Thu -- 02:46 PM EDT     3.34 feet High Tide
Thu -- 08:18 PM EDT     Sunset
Thu -- 11:06 PM EDT     0.95 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.82.22.221.71.41.10.90.811.52.12.83.23.33.22.92.521.61.31.10.9

Tide / Current Tables for Millside, RR. bridge, Delaware
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Millside
Click for Map
Thu -- 04:09 AM EDT     5.93 feet High Tide
Thu -- 05:41 AM EDT     Sunrise
Thu -- 09:42 AM EDT     Moonset
Thu -- 11:26 AM EDT     0.48 feet Low Tide
Thu -- 04:50 PM EDT     5.07 feet High Tide
Thu -- 08:16 PM EDT     Sunset
Thu -- 11:21 PM EDT     0.93 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.73.24.65.55.95.74.83.72.71.81.10.60.61.6344.85.14.63.72.71.81.31

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for State College, PA (18,4,5,8)
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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.