Monday, November20, 2017 L-36.com


Marine Weather and Tides
Refton, 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 6:55AMSunset 4:46PM Monday November 20, 2017 12:24 PM EST (17:24 UTC) Moonrise 8:37AMMoonset 6:39PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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- 947 Am Est Mon Nov 20 2017
.small craft advisory in effect until 6 pm est this evening...
.small craft advisory in effect from Tuesday morning through Tuesday evening...
Rest of today..W winds 15 kt with gusts to 20 kt. Waves 1 ft.
Tonight..SW winds 5 to 10 kt. Waves 1 ft.
Tue..S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Tue night..SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft. A chance of showers.
Wed..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Wed night..N winds 10 to 15 kt. Waves 1 ft.
Thu..W winds 5 to 10 kt. Waves 1 ft or less.
Fri..SW winds 5 to 10 kt. Waves 1 ft.
ANZ500 947 Am Est Mon Nov 20 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build to our south through tonight. The high will move offshore Tuesday and a cold front will pass through late Tuesday night into Wednesday. High pressure will return for the second half of the week. A small craft advisory may be needed for portions of the waters Tuesday night through Wednesday night.

7 Day Forecast for Marine Location Near Refton, PA
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location: 39.88, -76.27     debug


Area Discussion for - State College, PA
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Fxus61 kctp 201559
afdctp
area forecast discussion
national weather service state college pa
1059 am est Mon nov 20 2017

Synopsis
The weather for thanksgiving week travel looks fairly good
overall. An early week mild temperature swing will be followed
by another shot of cold air Tuesday night into Wednesday. This
may create the potential for snow showers, falling temperatures
and slick roads over the alleghenies. Dry weather with near
average temperatures is expected through thanksgiving day.

Near term through tonight
Lake-effect snow showers have shifted into southwest ny as the
low level flow backs to the west-southwest. Satellite data
shows clear sunny skies over s-central pa with snow visible over
the laurel ridges. Cloud cover should decrease over the northern
1 2 of the CWA with partly sunny conditions by the afternoon.

More Sun should offset gusty southwest winds to some extent
making it feel not as cold. Clear skies expected tonight with
variable minimum temperatures based on elevation. Decoupled
sites could drop into the lower 20s while gusty SW winds keep
the ridges warmer closer to the freezing mark.

Short term Tuesday
Tuesday looks very nice fair mild. We'll be under the thermal
ridge Tuesday and will get into the u40s to l50s. As the sun
sets, as small chance of a shower exists in the far nw.

Long term Tuesday night through Monday
A weakening front will slide by to our north and bring sct
shrasn to the NW half of the area Tuesday night and very early
Wednesday.

Another area of high pressure will build east and keep us mainly
dry at least through the end of the week, before a new frontal
system takes aim at the area.

Aviation 15z Monday through Friday
MVFR CIGS at bfd should improve by the afternoon.VFR continues
tonight into Tuesday. Wind gusts from 240-270 degrees 15-25kts
western 1 3.

Outlook...

tue night-wed... Chance of rain snow showers Tue night-am wed.

Thu-fri... No sig wx expected.

Ctp watches warnings advisories
None.

Synopsis... Steinbugl
near term... Steinbugl
short term... Dangelo
long term... La corte ceru
aviation... Steinbugl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44057 - Susquehanna, MD 26 mi45 min WNW 12 G 18 43°F 1021.3 hPa
CHCM2 - 8573927 - Chesapeake City, MD 34 mi55 min W 11 G 14 42°F 47°F1021.6 hPa
DELD1 - 8551762 - Delaware City, DE 42 mi55 min NW 8.9 G 18 43°F 46°F1020.8 hPa
RDYD1 - 8551910 - Reedy Point, DE 43 mi55 min 43°F 48°F1020.6 hPa
BLTM2 - 8574680 - Baltimore, MD 45 mi55 min NW 7 G 12 44°F 54°F1021.5 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 46 mi55 min W 12 G 16 43°F 49°F1022.1 hPa
MRCP1 - 8540433 - Marcus Hook, PA 46 mi55 min 43°F 53°F1020 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 48 mi55 min W 13 G 15 43°F 1021.7 hPa

Wind History for Chesapeake City, MD
(wind in knots)    EDIT      (on/off)   Help
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W14
G20
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G9
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G12
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G9

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lancaster, Lancaster Airport, PA17 mi32 minW 1310.00 miFair43°F25°F49%1020 hPa
Chester County Airport, PA23 mi30 minW 12 G 1810.00 miFair41°F23°F49%1019.6 hPa

Wind History from LNS (wind in knots)
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Last 24hrW23
G35
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--W15W11W11W6W9W16
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W9NW5W10W15W7W9W10W13W15W16
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1 day agoS5SE5SE4E4E5E6NE6SE4SE5S10S9
G15
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G26
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SW11
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------W19
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G31
2 days agoNW9NW12
G15
NW9NW8W6NW4W44CalmNE3CalmNE3E5E5CalmE4E4E4E5SE7SE5SE5S5E4

Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
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Port Deposit
Click for Map
Mon -- 06:54 AM EST     Sunrise
Mon -- 07:29 AM EST     0.59 feet Low Tide
Mon -- 08:35 AM EST     Moonrise
Mon -- 11:24 AM EST     1.82 feet High Tide
Mon -- 04:45 PM EST     Sunset
Mon -- 06:09 PM EST     0.00 feet Low Tide
Mon -- 06:39 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.92.72.421.51.10.80.60.611.51.81.81.61.20.80.40.100.10.61.32.12.7

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland
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Havre de Grace
Click for Map
Mon -- 05:30 AM EST     -0.05 feet Low Tide
Mon -- 06:54 AM EST     Sunrise
Mon -- 08:34 AM EST     Moonrise
Mon -- 11:00 AM EST     1.75 feet High Tide
Mon -- 04:45 PM EST     Sunset
Mon -- 04:51 PM EST     0.12 feet Low Tide
Mon -- 06:39 PM EST     Moonset
Mon -- 10:44 PM EST     2.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
21.61.10.70.2-0-00.30.71.21.61.71.61.30.90.50.20.10.30.81.422.32.4

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 (12,3,4,5)
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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.