Tuesday, May21, 2019 L-36.com


Marine Weather and Tides
Glassmanor, MD

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 5:49AMSunset 8:19PM Tuesday May 21, 2019 2:37 AM EDT (06:37 UTC) Moonrise 10:12PMMoonset 7:06AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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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ANZ535 Tidal Potomac From Key Bridge To Indian Head- 135 Am Edt Tue May 21 2019
.small craft advisory in effect through this afternoon...
Overnight..NW winds 10 kt with gusts to 20 kt. Waves 1 ft.
Tue..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Tue night..N winds 5 to 10 kt. Waves 1 ft.
Wed..S winds around 5 kt. Waves 1 ft.
Wed night..S winds 5 kt. Waves less than 1 ft.
Thu..SW winds 5 kt. Waves less than 1 ft. A chance of showers.
Thu night..W winds 5 kt. Waves less than 1 ft.
Fri..N winds 5 to 10 kt...becoming E after midnight. Waves 1 ft.
Sat..S winds 5 kt. Waves less than 1 ft.
ANZ500 135 Am Edt Tue May 21 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will dominate through the middle portion of this week. A warm front will lift north through the area Wednesday night and linger near the mid atlantic to finish out the week.


7 Day Forecast for Marine Location Near Glassmanor, MD
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location: 38.83, -77     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 210110 aaa
afdlwx
area forecast discussion... Updated
national weather service baltimore md washington dc
910 pm edt Mon may 20 2019

Synopsis
A cold front will continue to move south of the area tonight.

Canadian high pressure will dominate in its wake through the
middle portion of the work week. This high will shift offshore
Wednesday night as a frontal boundary lingers near the mid
atlantic to finish out the week.

Near term through Tuesday
Clearing tonight east of the mtns as cdfnt pushes south. There
will be some upslope stratocumulus over the appalachians, but
other than that clear and cooler tonight. Winds will pick up
overnight some in eastern areas due to a pressure surge. Turning
breezy into tomorrow morning.

Short term Tuesday night through Wednesday night
High pressure will build down of the mid atlantic from the
great lakes Tuesday through Wednesday. Gusty northwest winds on
Tuesday will yield much cooler temperatures in the low to middle
70s area wide, moderating slightly on Wednesday but still
holding in the 70s. The strong and complex system impacting the
southern central plains the next couple of days will lift
northward into the upper midwest late Wednesday and Wednesday
night. This will lift a warm front toward our region Wednesday
night as the high shifts off the coast. This will likely bring
an increase in cloud cover Wednesday night, as well as
increasing shower chances by early Thursday morning, mainly west
of the blue ridge.

Long term Thursday through Monday
Upper level ridging will remain centered over the southeastern
united states through at least Saturday. A warm front likely will be
north of the area on Thursday. Some diurnal convection will be
possible due to increasing warmth and humidity, along with a
potential disturbance rounding the ridge and a lee pressure trough.

Recent guidance trends suggest a stronger shortwave will drive low
pressure into new england Thursday night into Friday, which will
send a cold front southward through the area... Another potential
focus for precipitation.

High pressure will briefly build in Friday night with the upper
ridge expanding back north. Temperatures will return to normal as
long as we're on the north side of the front. The next low pressure
system will be moving through the northern plains, which will
eventually force the warm front back northward later in the weekend.

As the low moves toward eastern canada, the front will make a push
back to the south, though how far it gets will depend on the
strength of the ridge. Chance for convection will depend on the
positioning of the fronts from Saturday through Monday, thus pops
will be kept low at this time.

Aviation 01z Tuesday through Saturday
The front will push to the south and east of the terminals this
evening, with west northwest winds taking hold overnight.

Canadian high pressure will build over the terminals Tuesday
through Wednesday, with gusty northwest winds on Tuesday
slacking and becoming light through Wednesday night. No threat
for precipitation or subVFR conditions Tuesday and Wednesday.

Vfr conditions will prevail Thursday through Saturday but brief
flight restrictions could be possible as showers and thunderstorms
develop along a wavering frontal boundary.

Marine
After a bit of a lull in winds in the wake of the frontal
passage, the gradient is expected to tighten Tuesday morning,
thus SCA conditions expected once again. As high pressure shifts
over the region Tuesday night through Wednesday night, light
winds will prevail with no threat of gusty showers storms.

A warm front will lift north Thursday and return south on Friday as
a cold front. If current model projections hold, SCA conditions
could occur with northwest winds on Friday. High pressure will bring
lighter winds Saturday.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory from 2 am to 6 pm edt Tuesday for
anz530>543.

Synopsis... Lfr
near term... Lfr
short term... Klw
long term... Ads
aviation... Lfr ads
marine... Ads lfr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WASD2 - 8594900 - Washington, DC 3 mi43 min NNW 5.1 G 9.9 72°F 69°F1012.3 hPa
APAM2 - 8575512 - Annapolis, MD 30 mi43 min 72°F 1010.7 hPa
TPLM2 - Thomas Point, MD 30 mi37 min WNW 14 G 16 72°F 67°F1012.2 hPa (+0.7)52°F
44063 - Annapolis 31 mi43 min NNW 14 G 16 72°F 69°F1011.1 hPa
CPVM2 34 mi43 min 71°F 55°F
NCDV2 35 mi43 min NW 1.9 G 4.1 70°F 74°F1010.7 hPa
44062 - Gooses Reef, MD 36 mi91 min NNW 3.9 G 5.8 72°F 1011.7 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 37 mi43 min NNW 19 G 22 72°F 1011.2 hPa
FSNM2 37 mi43 min NW 20 G 24 71°F 1011.4 hPa
BLTM2 - 8574680 - Baltimore, MD 38 mi43 min N 7 G 15 72°F 73°F1011.4 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 44 mi43 min NNW 8 G 9.9 72°F 1011.9 hPa
SLIM2 - 8577330 - Solomons Island, MD 46 mi43 min NNW 2.9 G 4.1 71°F 69°F1010.7 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 48 mi55 min NNW 19 G 22 71°F1011.7 hPa

Wind History for Washington, DC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Washington/Reagan National Airport, DC, VA3 mi45 minN 1010.00 miFair70°F52°F53%1012.2 hPa
Camp Springs / Andrews Air Force Base, MD7 mi41 minNW 10 G 1810.00 miFair70°F50°F49%1012.3 hPa
College Park Airport, MD11 mi54 minNW 7 G 1410.00 miFair70°F50°F50%1012.2 hPa
Fort Belvoir, VA12 mi41 minNW 810.00 miFair72°F52°F50%1012.4 hPa
Fort Meade / Tipton, MD22 mi55 minNW 510.00 miFair64°F53°F68%1012.5 hPa

Wind History from DCA (wind in knots)
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Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Reagan National Airport, Washington, D.C.
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Reagan National Airport
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Tue -- 05:08 AM EDT     0.33 feet Low Tide
Tue -- 05:51 AM EDT     Sunrise
Tue -- 08:05 AM EDT     Moonset
Tue -- 10:49 AM EDT     3.76 feet High Tide
Tue -- 05:59 PM EDT     0.14 feet Low Tide
Tue -- 08:18 PM EDT     Sunset
Tue -- 11:12 PM EDT     Moonrise
Tue -- 11:30 PM EDT     3.22 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.92.21.510.60.30.51.22.23.13.63.73.42.82.11.40.90.40.10.41.22.12.83.2

Tide / Current Tables for Key Bridge, D.C.
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Key Bridge
Click for Map
Tue -- 05:16 AM EDT     0.31 feet Low Tide
Tue -- 05:51 AM EDT     Sunrise
Tue -- 08:05 AM EDT     Moonset
Tue -- 10:58 AM EDT     3.62 feet High Tide
Tue -- 06:07 PM EDT     0.13 feet Low Tide
Tue -- 08:19 PM EDT     Sunset
Tue -- 11:12 PM EDT     Moonrise
Tue -- 11:39 PM EDT     3.10 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.82.21.610.60.30.4122.93.43.63.42.82.11.50.90.40.10.311.92.63

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 Baltimore, MD/Washington (2,6,7,8)
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Ground Weather Radar Station Sterling, VA
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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.