Tuesday, October17, 2017 L-36.com

Marine Weather and Tides
Tilghman Island, 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 6:23PM Tuesday October 17, 2017 4:23 PM EDT (20:23 UTC) Moonrise 3:55AMMoonset 4:38PM Illumination 7% 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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ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 231 Pm Edt Tue Oct 17 2017
This afternoon..N winds 5 to 10 kt. Waves 1 ft.
Tonight..W winds around 5 kt. Waves 1 ft or less.
Wed..SW winds 5 kt. Waves less than 1 ft.
Wed night..S winds 5 kt. Waves flat.
Thu..SW winds 5 kt. Waves less than 1 ft.
Thu night..W winds 5 to 10 kt. Waves 1 ft.
Fri..N winds 5 to 10 kt. Waves 1 ft or less.
Sat..S winds around 5 kt. Waves 1 ft or less.
ANZ500 231 Pm 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 Tilghman Island, MD
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location: 38.71, -76.32     debug

Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 171850
area forecast discussion
national weather service baltimore md washington dc
250 pm edt Tue oct 17 2017

High pressure will remain across the mid atlantic through the
rest of the week and this weekend. A low pressure system may
affect the region early next week.

Near term through tonight
A sprawling area of high pressure will continue moving into the
area this afternoon, cresting overhead late tonight and
Wednesday morning. This will result in sunny skies and
relatively light winds through the rest of the afternoon, with
clear skies and calm winds overnight. This will provide for
ideal radiational cooling conditions, with lows in the 30s for
much of the area, except in the 40s in the immediate urban
centers and along the shorelines of the chesapeake and tidal
potomac. The growing season ended last night for western
allegheny, mineral, grant, pendleton, and highland counties, so
no frost freeze headlines there. Otherwise we have issued freeze
warnings in the shenandoah valley for lows 30-32f, and frost
advisories for much of the rest of the area, except the zones along
the western shore of the chesapeake bay. The coldest readings
will be in sheltered valleys away from large bodies of water and
away from urban areas.

Short term Wednesday through Thursday night
Surface high pressure will remain in control Wednesday, although
will gradually shift southward by Wednesday night as a weak
system moves into new england Wednesday night into Thursday. We
may see an increase in some high clouds Wednesday night into
Thursday morning as the system passes by to the north, but
otherwise no sensible impacts. High pressure will then expand
back northward Thursday night.

Temperatures will be moderating through the week, with highs
Wednesday in the upper 60s to around 70f, and reaching the low
to mid 70s on Thursday. Low temperatures will be a bit milder
than tonight, generally from 35-45f Wednesday night and 40-50f
Thursday night, with 50s in the urban centers and along the
chesapeake and tidal potomac shorelines. There may be some areas
of frost again Wednesday night given these temperatures,
although not as widespread as tonight.

Long term Friday through Monday
High pressure system centered near or over our area
will keep dry condition on Friday as it slowly moves offshore on
Saturday. Condtions will continue to be dry on Sunday as it moves
away from the coast.

A cold front will approach from the west on Monday with a wave
of low pressure tracking through it as an upper level trough
amplifies over eastern conus. Guidance suggest precipitation
associated with the cold front could start as early as Monday
afternoon and last into Tuesday with periods of heavy rain at

High temperatures will be between the low to mid 70s on Friday to
the mid to upper 70s on Monday. High temperature decreases on
Tuesday into the 60s.

Aviation 19z Tuesday through Sunday
High pressure will provide mostly clear skies and light winds
through Sunday.

High pressure will crest overhead tonight and remain nearby
through Saturday, before moving offshore Sunday. A weak system
will pass by to the north Thursday night. Winds will be 10 kt
or less for much of the time, with the exception of Thursday
night when gusts may approach small craft advisory criteria.

Tides coastal flooding
Anomalies have begun to recover today as northwest winds have
abated. While no flooding is currently forecast, the sensitive
sites of straits point, annapolis, and washington dc may
reach action stage and will need to be monitored.

Lwx watches warnings advisories
Dc... Frost advisory from 1 am to 9 am edt Wednesday for dcz001.

Md... Frost advisory from 1 am to 9 am edt Wednesday for mdz003>006-

Va... Frost advisory from 1 am to 9 am edt Wednesday for vaz028>031-

Freeze warning from 1 am to 9 am edt Wednesday for vaz025>027.

Wv... Frost advisory from 1 am to 9 am edt Wednesday for wvz050>053-

Marine... None.

Synopsis... Mm
near term... Mm
short term... Mm
long term... Imr
aviation... Mm imr
marine... Mm imr
tides coastal flooding... Mm

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44062 - Gooses Reef, MD 12 mi44 min ENE 3.9 G 7.8 57°F 1029 hPa
TPLM2 - Thomas Point, MD 14 mi84 min ENE 5.1 G 7 55°F 67°F
CA2 - 8571892 - Cambridge, MD 16 mi54 min 59°F 67°F1027.2 hPa
44063 - Annapolis 19 mi44 min SE 3.9 G 5.8 56°F 1025.5 hPa
CPVM2 20 mi54 min 57°F 37°F
APAM2 - 8575512 - Annapolis, MD 21 mi54 min 57°F 1025.8 hPa
BSLM2 - Chesapeake Bay, MD 21 mi114 min N 2.9 59°F 1026 hPa32°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 22 mi54 min NNE 5.1 G 8.9 55°F 1027.4 hPa
SLIM2 - 8577330 - Solomons Island, MD 28 mi54 min NNW 1.9 G 5.1 57°F 70°F1026.3 hPa
44043 - Patapsco, MD 31 mi44 min SSE 3.9 G 5.8 56°F 1027.4 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 35 mi54 min SW 2.9 G 5.1 57°F 66°F1026.5 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 37 mi54 min Calm G 1.9 60°F 1026 hPa
BISM2 - 8571421 - Bishops Head, MD 37 mi54 min NE 4.1 G 6 57°F 62°F1026.7 hPa
WASD2 - 8594900 - Washington, DC 39 mi54 min WSW 1.9 G 6 62°F 69°F1026.1 hPa
PPTM2 - 8578240 - Piney Point, MD 41 mi54 min WNW 1.9 G 2.9
BLTM2 - 8574680 - Baltimore, MD 41 mi54 min S 1.9 G 5.1 63°F 71°F1025.5 hPa
44042 - Potomac, MD 47 mi44 min NNE 9.7 G 12 56°F 1026.3 hPa
NCDV2 47 mi54 min WNW 1.9 G 6 62°F 66°F1025.5 hPa

Wind History for Cambridge, MD
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Easton / Newman Field, MD15 mi39 minNW 610.00 miClear61°F35°F39%1027.4 hPa
Bay Bridge Field, MD18 mi44 minW 310.00 miFair57°F33°F41%1026.4 hPa
Cambridge-Dorchester Airport, MD19 mi39 minNW 49.00 miFair59°F35°F42%1026.4 hPa
Annapolis, United States Naval Academy, MD20 mi30 minSE 510.00 miFair59°F44°F58%1026.5 hPa

Wind History from ESN (wind in knots)
Last 24hrN8N6N6CalmCalmCalmCalmCalmCalmNE3N5NE8NE6NE5N4N4N3N8N8N9N7N4N4N4
1 day agoSW11S8S7S7S6SW8SW8SW7SW9SW9W7W5NW7N9
2 days agoNW5N5N3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW9SW8SW8W8

Tide / Current Tables for Avalon, Dogwood Harbor, Maryland
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Tue -- 02:19 AM EDT     1.87 feet High Tide
Tue -- 04:54 AM EDT     Moonrise
Tue -- 07:16 AM EDT     Sunrise
Tue -- 09:16 AM EDT     0.38 feet Low Tide
Tue -- 02:47 PM EDT     1.80 feet High Tide
Tue -- 05:38 PM EDT     Moonset
Tue -- 06:23 PM EDT     Sunset
Tue -- 09:32 PM EDT     0.44 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Tue -- 12:49 AM EDT     0.00 knots Slack
Tue -- 03:51 AM EDT     0.80 knots Max Flood
Tue -- 04:54 AM EDT     Moonrise
Tue -- 06:51 AM EDT     -0.00 knots Slack
Tue -- 07:17 AM EDT     Sunrise
Tue -- 10:00 AM EDT     -0.89 knots Max Ebb
Tue -- 01:03 PM EDT     0.00 knots Slack
Tue -- 04:18 PM EDT     0.98 knots Max Flood
Tue -- 05:38 PM EDT     Moonset
Tue -- 06:23 PM EDT     Sunset
Tue -- 07:32 PM EDT     -0.00 knots Slack
Tue -- 10:38 PM EDT     -0.92 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Mid-Atlantic    EDIT

Wind Forecast for Baltimore, MD/Washington (16,3,4,5)
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Ground Weather Radar Station Dover AFB, DE
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weather_mapweather_map weather_map

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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.