Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Arden on the Severn, MD

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 5:42AMSunset 8:24PM Saturday May 27, 2017 6:00 AM EDT (10:00 UTC) Moonrise 6:41AMMoonset 9:28PM 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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ANZ538 Patapsco River Including Baltimore Harbor- 432 Am Edt Sat May 27 2017
Rest of the overnight..W winds 5 kt. Waves flat.
Today..E winds around 5 kt. Waves flat. Showers likely.
Tonight..NE winds around 5 kt. Waves flat. A chance of showers.
Sun..E winds 5 to 10 kt. Waves 1 ft or less.
Sun night..SE winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms.
Mon..S winds 5 kt. Waves less than 1 ft. A chance of showers.
Mon night..W winds around 5 kt. Waves flat.
Tue..W winds around 5 kt. Waves 1 ft or less.
Wed..W winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 432 Am Edt Sat May 27 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will move off the mid-atlantic coast today while a warm front lifts into the area. The front will stall out near the waters through Sunday before a cold front moves into the area Monday. The boundary will stall south of the waters for Tuesday and Wednesday.

7 Day Forecast for Marine Location Near Arden on the Severn, MD
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location: 39.07, -76.58     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 270802
afdlwx
area forecast discussion
national weather service baltimore md washington dc
402 am edt Sat may 27 2017

Synopsis High pressure overhead this morning will move
offshore later today. A wave of low pressure will move across
the area this afternoon or evening pushing a weak front south
of the area late tonight. A stronger cold front will move
through the area Monday. High pressure will return to the area
mid next week.

Near term through tonight Weakening t-storm complex over
oh early this morning is associated with a low pressure system
over indiana. Weakening showers will move across the area
mainly after daybreak, but will be insignificant. The low pres
center will continue to move east across the area this
afternoon or this evening and will set up a warm front across
the southern half of the fcst area. Nssl wrf-arw and instability
fcst fields from different models indicate the area from
augusta county south and east through charlottesville will be
the prime area for strong potentially severe convective
development later this afternoon and early this evening.

Damaging winds and large hail appear to be the main threat.

0-6km flow around 30kt should keep storms moving with flash
flooding risk low despite saturated soils and potential training
convection. The low pres system and associated front will push
south of the area later tonight with showers ending.

Short term Sunday through Monday night Sunday will likely
start out quiet, but with plenty of low clouds. Low pressure
will be tracking from the mid-ms valley to southwest ontario by
late Sunday night. A sfc trof will establish across the area
during the afternoon with pwats increasing over 1.5 inches.

Widespread convection appears likely Sun afternoon and evening
with potential for flash flooding especially west of the blue
ridge given saturated soils. Convection begins to weaken and
shift east late Sun night due to loss heating and sfc trof
shifting east. Convection could redevelop east of the blue
ridge Mon afternoon with actual frontal passage.

Long term Tuesday through Friday
Upper level low pressure will be slowly moving across ontario and
quebec during the Tuesday through Thursday time frame. While overall
flow will be from the SW to W aloft, there will still be
opportunities for shortwave troughs to dive through the area. It
does appear there will be two additional boundaries following
Monday's front that will drop southeast through the middle of the
week. The second (likely late Wednesday or Thursday looks to be the
stronger of the two in terms of airmass change. While this pattern
is a little unsettled, rain chances should be scattered and
instability for thunderstorms limited.

Ensemble spread increases toward the end of the weak regarding the
upper air pattern and evolution of the closed low. However, there
should be a dry period at some point as surface high pressure builds
into the area behind the cold front.

Above normal temperatures on Tuesday will decrease through the
remainder of the week behind the frontal passages. Highs will settle
into the 70s with lows in the 50s, which is near normal.

Aviation 08z Saturday through Wednesday Vfr conditions
today, but with morning showers. Kcho terminal will be the most
vulnerable to t-storms today with brief MVFR ifr conditions
possible. Widespread convection Sun evening with flying
restrictions likely.

Overall Tuesday and Wednesday should beVFR, but there could be some
scattered showers and perhaps a thunderstorm as weak fronts move
through the area.

Marine Gradient winds below sca, but winds and waves higher
near t-storms.

Winds are forecast to remain below SCA criteria Tuesday and
Wednesday, although a cold front on Wednesday could lead to slightly
higher winds.

Tides coastal flooding Minor coastal flooding expected at
straits point for the next several high tide cycles.

Lwx watches warnings advisories
Dc... None.

Md... Coastal flood advisory until 6 am edt early this morning for
mdz017.

Va... None.

Wv... None.

Marine... None.

Synopsis... Lfr
near term... Lfr
short term... Lfr
long term... Ads
aviation... Ads lfr
marine... Ads lfr
tides coastal flooding... Lfr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
APAM2 - 8575512 - Annapolis, MD 8 mi43 min 62°F 1012.4 hPa
44063 - Annapolis 10 mi41 min WNW 3.9 G 5.8 63°F 1013 hPa
CPVM2 11 mi43 min 64°F 55°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 11 mi43 min W 5.1 G 6 63°F 1012.7 hPa
FSNM2 11 mi43 min W 7 G 7 64°F 1012.5 hPa
44043 - Patapsco, MD 12 mi41 min WNW 5.8 G 7.8 64°F 1013.4 hPa
BLTM2 - 8574680 - Baltimore, MD 14 mi43 min WNW 1 G 4.1 64°F 67°F1012.3 hPa
TPLM2 - Thomas Point, MD 14 mi61 min NW 7 G 7 64°F 64°F
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi43 min W 6 G 7 65°F 66°F1013 hPa
WASD2 - 8594900 - Washington, DC 27 mi43 min Calm G 0 63°F 68°F1012.4 hPa
44062 - Gooses Reef, MD 37 mi41 min NNW 5.8 G 7.8 66°F 1013.9 hPa
44057 - Susquehanna, MD 42 mi41 min NNW 5.8 G 7.8 60°F 1012.7 hPa
CA2 - 8571892 - Cambridge, MD 44 mi49 min 63°F 68°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 47 mi43 min NW 4.1 G 7 64°F 1013.9 hPa

Wind History for Francis Scott Key Bridge NE Tower, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD8 mi67 minN 010.00 miOvercast63°F59°F87%1013.2 hPa
Fort Meade / Tipton, MD10 mi70 minN 07.00 miOvercast55°F53°F94%1014.2 hPa
Baltimore, Baltimore-Washington International Airport, MD10 mi67 minN 010.00 miMostly Cloudy59°F55°F87%1013.1 hPa
Bay Bridge Field, MD15 mi71 minWNW 310.00 miOvercast63°F57°F83%1013.2 hPa
Baltimore, Inner Harbor, MD15 mi67 minno data mi65°F54°F68%1013.2 hPa
College Park Airport, MD19 mi68 minN 010.00 miMostly Cloudy56°F54°F95%1013.2 hPa
Baltimore / Martin, MD20 mi70 minN 010.00 miOvercast61°F59°F94%1013.5 hPa
Camp Springs / Andrews Air Force Base, MD23 mi63 minN 010.00 miMostly Cloudy59°F55°F89%1013.7 hPa

Wind History from NAK (wind in knots)
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Last 24hrW64W7W8W8
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NW11W10
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W8W8W4W5CalmCalmCalmCalmCalmCalm
1 day ago----SE9E5SE34655--E8E9NW3W7SW8CalmNW34NW5W5W4W5W6W5
2 days agoNE3NE3CalmNE4N6NE8E4CalmE5SE4CalmSE6SE12SE17SE13------------------

Tide / Current Tables for Cedar Point, Severn River, Maryland
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Cedar Point
Click for Map
Sat -- 12:59 AM EDT     0.11 feet Low Tide
Sat -- 05:44 AM EDT     Sunrise
Sat -- 07:41 AM EDT     1.34 feet High Tide
Sat -- 07:41 AM EDT     Moonrise
Sat -- 03:03 PM EDT     0.17 feet Low Tide
Sat -- 08:08 PM EDT     0.80 feet High Tide
Sat -- 08:22 PM EDT     Sunset
Sat -- 10:28 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.10.20.30.60.91.11.31.31.210.80.60.40.20.20.20.40.60.70.80.80.60.5

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Sat -- 12:22 AM EDT     -0.75 knots Max Ebb
Sat -- 03:02 AM EDT     0.00 knots Slack
Sat -- 05:43 AM EDT     Sunrise
Sat -- 06:45 AM EDT     1.33 knots Max Flood
Sat -- 07:40 AM EDT     Moonrise
Sat -- 10:13 AM EDT     -0.00 knots Slack
Sat -- 01:32 PM EDT     -1.23 knots Max Ebb
Sat -- 05:12 PM EDT     0.00 knots Slack
Sat -- 07:42 PM EDT     0.62 knots Max Flood
Sat -- 08:21 PM EDT     Sunset
Sat -- 10:21 PM EDT     -0.00 knots Slack
Sat -- 10:27 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.7-0.4-00.511.31.31.10.70.1-0.4-0.9-1.2-1.2-1-0.6-0.10.30.60.60.40.1-0.2

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 Baltimore, MD/Washington (6,6,7,8)
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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.