Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Charles, MD

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 7:15AMSunset 6:21PM Tuesday October 17, 2017 7:12 AM EDT (11:12 UTC) Moonrise 3:53AMMoonset 4:37PM Illumination 9% Phase: Waning Crescent; Moon at 27 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- 547 Am Edt Tue Oct 17 2017
Today..NW winds 5 to 10 kt. Waves 1 ft or less.
Tonight..W winds around 5 kt. Waves flat.
Wed..SW winds around 5 kt. Waves 1 ft or less.
Wed night..SW winds around 5 kt. Waves flat.
Thu..SW winds 5 kt. Waves less than 1 ft.
Thu night..W winds 5 kt. Waves less than 1 ft.
Fri..N winds around 5 kt. Waves 1 ft or less.
Sat..S winds around 5 kt. Waves 1 ft.
ANZ500 547 Am Edt Tue Oct 17 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain in place through the rest of the week and into the weekend.

7 Day Forecast for Marine Location Near Charles, MD
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location: 39.57, -75.97     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 171015
afdphi
area forecast discussion
national weather service mount holly nj
615 am edt Tue oct 17 2017

Synopsis
High pressure over the midwest will build east and will move
off the mid-atlantic coast later this week. A cold front
gradually approaches early next week.

Near term until 6 pm this evening
High pressure builds across the area today, providing quiet
weather across the region as mostly sunny skies prevail. Winds
will shift from the north this morning, to west through the day
as the center of the high shifts slightly southward. Highs will
be close to or slightly below normal across the area.

Short term 6 pm this evening through 6 am Wednesday
High pressure remains in control of the weather tonight across
the region. Skies remain mostly clear and winds will become
light and variable or calm for most places. This will allow for
temperatures to cool once again to near or slightly below normal
for most places. We maintain the frost advisory for portions of
the pine barrens of southern new jersey as temperatures there
may cool enough for some areas of frost to develop. Portions of
northern new jersey and northeast pennsylvania may stay just
warm enough for only patchy frost to develop in the isolated
coolest spots.

Long term Wednesday through Monday
A prolonged period of dry weather is on tap for long term as
high pressure builds east and remains in control of the weather.

Temperatures will gradually warm up, and will end up being
above normal for the end of the week and into the weekend.

High pressure will be centered south of the DELMARVA peninsula
on Wednesday. Return flow sets up behind the high, allowing high
temperatures to warm up by about 10 degrees compared to
Tuesday, and highs will be in the upper 60s to low 70s.

The high moves offshore on Thursday, and then another area of
high pressure will become entrenched over the mid-atlantic and
southeast u.S. For the weekend. Highs will gradually rise into
the low to mid 70s, and overnight lows will be in the 40s to low
50s.

High pressure moves offshore on Monday. A cold front approaches
late in the day.

Aviation 10z Tuesday through Saturday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Vfr conditions will prevail today and tonight. Winds will shift
from northerly this morning, to west-southwest this afternoon
into this evening, before becoming light and variable or calm
this evening and overnight.

Outlook...

Wednesday through Saturday...VFR.

Marine
We extended the small craft advisory through 11 am this morning
as winds remain around 25 to 30 knots and seas are around 4-6
feet in some areas. As high pressure continues to build across
the area, winds will lighten and seas will subside and the
advisory will be able to be come down later this morning.

Conditions the rest of today and tonight will remain below
advisory levels.

Outlook...

Wednesday through Saturday... Sub-sca conditions expected on the
waters through this time.

Phi watches warnings advisories
Pa... Frost advisory until 9 am edt this morning for paz054-055-
060>062-101-103-105.

Nj... Frost advisory until 9 am edt this morning for njz001-007>010.

Frost advisory from 1 am to 9 am edt Wednesday for njz021-022-
027.

De... None.

Md... None.

Marine... Small craft advisory until 11 am edt this morning for anz431-
450>455.

Synopsis... Mps
near term... Robertson
short term... Robertson
long term... Mps
aviation... Robertson mps
marine... Robertson mps


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44057 - Susquehanna, MD 6 mi72 min N 7.8 G 9.7 47°F 1027 hPa
CHCM2 - 8573927 - Chesapeake City, MD 9 mi42 min NW 4.1 G 5.1 41°F 69°F1027.3 hPa
DELD1 - 8551762 - Delaware City, DE 20 mi42 min NNW 11 G 17 46°F 64°F1026.9 hPa
RDYD1 - 8551910 - Reedy Point, DE 21 mi42 min 44°F 68°F1026.5 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 29 mi42 min NNE 8.9 G 15 48°F 65°F1027.3 hPa
MRCP1 - 8540433 - Marcus Hook, PA 34 mi42 min 43°F 70°F1026.6 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 36 mi42 min N 18 G 20 47°F 1026 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 38 mi42 min N 9.9 G 11 47°F 1027.1 hPa
BLTM2 - 8574680 - Baltimore, MD 38 mi42 min NE 6 G 8 47°F 71°F1026.9 hPa
CPVM2 45 mi42 min 52°F 38°F
APAM2 - 8575512 - Annapolis, MD 49 mi42 min 50°F 1026.4 hPa

Wind History for Chesapeake City, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Phillips Army Air Field / Aberdeen, MD13 mi74 minN 310.00 miClear37°F37°F99%1027.4 hPa
Wilmington, New Castle County Airport, DE21 mi21 minNNW 810.00 miFair39°F35°F86%1027.3 hPa

Wind History from APG (wind in knots)
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Last 24hrNW5NW9NW7N11
G16
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G15
NE5CalmCalmCalmCalmNW3Calm------CalmCalmCalmN3Calm
1 day agoSW6SW7SW10SW12SW9SW8SW9S9S12S9S7S5S9SW4SW9SW9W9NW4N7NW5CalmW3CalmW3
2 days agoN3CalmN4N5N5NW3CalmN3W3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW5

Tide / Current Tables for Charlestown, Northeast River, Chesapeake Bay, Maryland
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Charlestown
Click for Map
Tue -- 03:25 AM EDT     0.63 feet Low Tide
Tue -- 04:52 AM EDT     Moonrise
Tue -- 07:16 AM EDT     Sunrise
Tue -- 09:05 AM EDT     2.81 feet High Tide
Tue -- 04:07 PM EDT     0.56 feet Low Tide
Tue -- 05:37 PM EDT     Moonset
Tue -- 06:21 PM EDT     Sunset
Tue -- 09:33 PM EDT     2.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.20.90.70.711.62.22.62.82.72.421.51.10.70.60.71.11.82.32.72.72.5

Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Tue -- 03:02 AM EDT     0.10 knots Slack
Tue -- 04:51 AM EDT     Moonrise
Tue -- 05:43 AM EDT     2.20 knots Max Flood
Tue -- 07:15 AM EDT     Sunrise
Tue -- 09:05 AM EDT     -0.08 knots Slack
Tue -- 11:55 AM EDT     -1.96 knots Max Ebb
Tue -- 03:34 PM EDT     0.04 knots Slack
Tue -- 05:36 PM EDT     Moonset
Tue -- 06:08 PM EDT     2.12 knots Max Flood
Tue -- 06:20 PM EDT     Sunset
Tue -- 09:20 PM EDT     -0.05 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2-1.7-1.4-0.31.52.12.21.91.40.4-1.3-1.8-2-1.8-1.6-1.111.82.121.60.8-1.1-1.7

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 Philadelphia/Mount Holly, PA (7,2,3,4)
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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.