Wednesday, October18, 2017 L-36.com


Marine Weather and Tides
Riviera Beach, 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 7:18AMSunset 6:23PM Wednesday October 18, 2017 4:35 PM EDT (20:35 UTC) Moonrise 4:57AMMoonset 5:11PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 136 Pm Edt Wed Oct 18 2017
This afternoon..S winds 5 kt. Waves flat.
Tonight..SW winds 5 kt. Waves less than 1 ft.
Thu..SW winds around 5 kt. Waves 1 ft or less.
Thu night..W winds 5 kt. Waves less than 1 ft.
Fri..NW winds 5 kt. Waves less than 1 ft.
Fri night..N winds around 5 kt. Waves 1 ft or less.
Sat..S winds around 5 kt. Waves flat.
Sun..S winds around 5 kt. Waves 1 ft or less.
ANZ500 136 Pm Edt Wed Oct 18 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain near the region for the rest of the week and into the weekend. A weak front will pass by to the north Thursday night. Small craft advisories may be needed Thursday night into Friday morning.

7 Day Forecast for Marine Location Near Riviera Beach, MD
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location: 39.16, -76.53     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 181839
afdlwx
area forecast discussion
national weather service baltimore md washington dc
239 pm edt Wed oct 18 2017

Synopsis
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
Surface high pressure will continue sliding southward through
the remainder of the day and tonight as a weak system pushes
through the great lakes. At the same time a weak upper level
trough will cross the area overnight into early Thursday
morning. All this means for us is that there will likely be some
cirrus clouds tonight and a light southerly flow. In addition,
dew points are 5-10 degrees higher than at this time yesterday.

Therefore, while temperatures will be seasonably chilly, they
are not expected to be quite as cool as previous nights, with
lows from the mid upper 30s in the cooler locations to around
50f in the urban centers and along the chesapeake and tidal
potomac. There may be some patchy frost in those coolest
locations, but where the growing season remains, it is not
expected to be widespread enough for any advisories.

Short term Thursday through Friday night
Surface high pressure center will remain generally to our south
and southwest Thursday into Thursday night as the tail end of a
decaying cold front low level trough over new england clips the
area Thursday night. This will bring little more than a few
clouds and a wind shift to the northwest. The upper level
pattern will amplify (west coast trough east coast ridge) Friday
into Friday night, with the surface high expanding back to the
north and east.

Temperatures will continue to warm through the period, with
highs Thursday in the low 70s, and low to mid 70s on Friday.

Lows will be generally in the 40s.

Long term Saturday through Wednesday
High pressure system centered to our northeast on Saturday will
keep dry conditions and light winds over our area. This system
will slowly move offshore into Sunday as flow becomes more
southerly over our area. High temperatures will be in the mid to
upper 70s for most areas.

A cold front approaches from the west on Monday with a wave of low
pressure tracking northeast along it. Guidance suggest that
precipitation associated with the cold front could start
sometime on Monday but there is still uncertainty on how early.

Afterward, guidance is in agreement with an upper level trough
amplifying behind the front over the eastern CONUS Tuesday into
Wednesday bringing some upslope precipitation to areas west.

High temperatures on Monday will be between the low to mid 70s
decreasing into the upper 50s on Wednesday.

Aviation 18z Wednesday through Monday
High pressure will remain in control through the end of the
weekend. PredominantlyVFR expected, but can't rule out a brief
period of fog br at mrb cho the next few mornings. Otherwise
only passing cirrus is expected with winds less than 10 kt.

A frontal system will approach the region on Monday, and
precipitation could bring sub-vfr conditions at times beginning
late Monday.

Marine
High pressure will remain nearby through Thursday with light
southerly winds developing. A weak front will pass by to the
north Thursday night, which will turn winds to the northwest.

Potential for small craft advisory conditions will be dependent
on mixing, so the greater chance would be over the more open
waters. Winds will subside during the day on Friday as high
pressure moves back overhead, which will then generally persist
through the weekend. Southerly flow will begin to increase on
Monday ahead of the next frontal system.

Tides coastal flooding
Anomalies remain around one-half to three quarters of a foot
above normal. This should keep water levels below minor flood
thresholds but it will be close for the sensitive sites of
straits point, annapolis, and washington dc. Water levels will
need to be monitored.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

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
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 4 mi48 min SE 6 G 8 68°F 1026.1 hPa
44043 - Patapsco, MD 7 mi36 min S 9.7 G 12 66°F 67°F1027.6 hPa (-1.7)
BLTM2 - 8574680 - Baltimore, MD 8 mi48 min S 2.9 G 7 70°F 71°F1025.8 hPa
APAM2 - 8575512 - Annapolis, MD 13 mi48 min 67°F 1026 hPa
44063 - Annapolis 14 mi36 min S 9.7 G 12 66°F 68°F1025.7 hPa (-1.8)
CPVM2 14 mi48 min 66°F 49°F
TCBM2 - 8573364 - Tolchester Beach, MD 16 mi48 min SW 5.1 G 7 67°F 65°F1026.8 hPa
TPLM2 - Thomas Point, MD 19 mi36 min S 9.9 G 11 65°F 67°F
BSLM2 - Chesapeake Bay, MD 28 mi126 min SE 2.9 71°F 1027 hPa44°F
WASD2 - 8594900 - Washington, DC 33 mi192 min 1028.1 hPa
44057 - Susquehanna, MD 36 mi36 min S 12 G 14 67°F 71°F1026.2 hPa (-1.7)
44062 - Gooses Reef, MD 42 mi36 min SSW 5.8 G 7.8 66°F 70°F1030.4 hPa (-5.1)
CHCM2 - 8573927 - Chesapeake City, MD 46 mi54 min WNW 6 G 8 67°F 67°F1026.5 hPa
CA2 - 8571892 - Cambridge, MD 47 mi48 min 69°F 67°F1027.8 hPa

Wind History for Francis Scott Key Bridge, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Baltimore, Baltimore-Washington International Airport, MD8 mi42 minSSW 610.00 miA Few Clouds70°F43°F38%1026.1 hPa
Baltimore, Inner Harbor, MD9 mi42 minno data mi72°F43°F35%1026.1 hPa
Annapolis, United States Naval Academy, MD13 mi42 minSE 810.00 miFair69°F54°F59%1026.6 hPa
Fort Meade / Tipton, MD14 mi51 minSW 410.00 miFair68°F42°F40%1027.1 hPa
Baltimore / Martin, MD14 mi51 minSE 710.00 miClear70°F51°F53%1026.7 hPa
Bay Bridge Field, MD17 mi56 minSSW 710.00 miFair70°F42°F38%1026.7 hPa
College Park Airport, MD24 mi51 minSSW 310.00 miFair69°F41°F36%1026.7 hPa

Wind History from BWI (wind in knots)
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Last 24hrCalmS3S5S4CalmCalmW3SW3CalmCalmCalmCalmCalmSW3CalmSW3W5W4SW3SW4S53S4S6
1 day agoN7
G22
NW5NW5NW8NW3NW4NW3NW5NW3NW3NW3CalmCalmNW3CalmCalm3N7N7NE653N5Calm
2 days agoS8S4S3S3SW6S6SW7W10W7W7NW9W3W53W4W4NW8
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G16

Tide / Current Tables for Stony Creek, Patapsco River, Maryland
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Stony Creek
Click for Map
Wed -- 12:20 AM EDT     0.34 feet Low Tide
Wed -- 05:57 AM EDT     Moonrise
Wed -- 06:12 AM EDT     1.50 feet High Tide
Wed -- 07:19 AM EDT     Sunrise
Wed -- 12:41 PM EDT     0.27 feet Low Tide
Wed -- 06:10 PM EDT     Moonset
Wed -- 06:22 PM EDT     Sunset
Wed -- 06:43 PM EDT     1.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.40.50.81.11.41.51.51.310.70.50.30.30.40.711.31.51.61.41.210.7

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Wed -- 01:50 AM EDT     0.00 knots Slack
Wed -- 04:45 AM EDT     0.78 knots Max Flood
Wed -- 05:56 AM EDT     Moonrise
Wed -- 07:18 AM EDT     Sunrise
Wed -- 07:40 AM EDT     -0.00 knots Slack
Wed -- 10:46 AM EDT     -0.87 knots Max Ebb
Wed -- 01:44 PM EDT     0.00 knots Slack
Wed -- 05:04 PM EDT     1.05 knots Max Flood
Wed -- 06:10 PM EDT     Moonset
Wed -- 06:22 PM EDT     Sunset
Wed -- 08:20 PM EDT     -0.00 knots Slack
Wed -- 11:28 PM EDT     -0.98 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.40.10.50.70.80.60.3-0.1-0.5-0.8-0.9-0.7-0.30.10.60.91.10.90.60.2-0.3-0.7-1

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 (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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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.