Tuesday, October15, 2019 L-36.com


Marine Weather and Tides
Riviera Beach, MD

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:14AMSunset 6:29PM Tuesday October 15, 2019 7:07 AM EDT (11:07 UTC) Moonrise 6:47PMMoonset 7:44AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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- 437 Am Edt Tue Oct 15 2019
Rest of the overnight..N winds 5 kt. Waves flat.
Today..E winds 5 kt. Waves flat.
Tonight..SE winds 5 to 10 kt. Waves 1 ft.
Wed..S winds 5 to 10 kt. Waves 1 ft. Rain.
Wed night..W winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft.
Thu..W winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Thu night..NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
Fri..NW winds 5 to 10 kt. Waves 1 ft.
Sat..S winds around 5 kt. Waves 1 ft.
ANZ500 437 Am Edt Tue Oct 15 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will move offshore today. Low pressure will track through the southeastern conus tonight and it will intensify as it moves off the mid-atlantic coast Wednesday. A cold front will pass through the waters late Wednesday and high pressure will build overhead for Thursday and Friday. High pressure will move offshore during the weekend. Small craft advisories will likely be needed Wednesday night through Friday, with gales possible Wednesday night into Thursday.


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 150749
afdlwx
area forecast discussion
national weather service baltimore md washington dc
349 am edt Tue oct 15 2019

Synopsis
High pressure will continue to build into new england today as a
dry cold front pushes through the region. A strong surface low
pressure system will develop and move across the ohio valley on
Wednesday, then re-develop over southeastern virginia, before
moving up the east coast towards new england Wednesday night
into Thursday. High pressure returns Friday into the weekend.

Near term through tonight
High pressure will dominate the weather pattern today, with
sunny skies expected once again. Temperatures will be seasonably
warm, with highs into the low 70s across much of the area.

Elsewhere, we there are two features of interest to monitor. The
first being a developing surface low, currently in the northern
plains. This system will track east into the great lakes and
strengthen today. Additionally, surface low pressure will be
forming along the gulf coast as a piece of upper-level energy in
the southern jet interacts with the baroclinic boundary along
the coast.

The cold front associated with the northern low will be
approaching on Tuesday night, turning winds out of the
southeast, and eventually the south. Expecting some low clouds
east of the blue ridge as a result late Tuesday night, as well
as some isolated showers along the blue ridge.

Short term Wednesday through Thursday night
The main show will wait until Wednesday to materialize. The
strong upper-level trough digging down across the mid-atlantic
will act to lift the weaker southern stream energy north across
our region. As the surface low moves out of the southeast and up
the east coast, the cold front will be sweeping through the
area, so thinking we see a prolonged period of moderate rain
across much of the area. Cold front pushes through by Wednesday
afternoon, meanwhile, the secondary surface low will be sliding
up the eastern seaboard and gaining strength. This will result
in more intense rainfall across the DELMARVA peninsula and into
central northeast md. QPF amounts in excess of half an inch are
expected east of the blue ridge, with heavier amounts (1-1.25
inches) expected along the western shore of the chesapeake bay.

This region could also see some isolated rumbles of thunder
during the afternoon.

Low pressure will quickly depart to the northeast, and skies
will begin to clear into Wednesday night. Winds will also be on
the increase into Wednesday night behind the aforementioned
cold frontal passage. The highest wind gusts will be in the
higher elevations and on near the waters, where 30-35 mph gusts
aren't out of the question. Additionally, remnant upslope
showers are likely along west of the allegheny front. These will
mostly be rain, but could see some snow mix in at the highest
peaks, where surface temperatures will near the freezing mark,
with temperatures aloft below freezing as well.

Perhaps some lingering cloudcover along the mason-dixon line as
we head into Thursday, but dry across the entire area. Big story
will be the strong west-northwesterly winds up to 30 mph.

Temperatures will only be in the upper 50s to near 60 as well.

Slightly cooler temperatures overnight Thursday, with low to
mid 40s for much of the area. The higher elevations will be in
the low to mid 30s, so some frost freeze headlines may be
needed in a few spots.

Long term Friday through Monday
High pressure will build overhead Friday through Saturday, bringing
dry and seasonable conditions. High pressure will move offshore
Saturday night into Sunday while weak low pressure associated with
the southern stream of the jet moves through the gulf coast states.

There is a chance that southern stream moisture overruns cooler air
in place, causing some rain later Sunday into Sunday night. However,
confidence is low at this time since guidance diverges on how much
southern stream moisture will make it into our area.

A deepening upper-level trough to our west is expected for early
next week, and this will bring warm conditions for this time of
year, but with a deep southerly flow this will also bring the chance
for showers.

Aviation 07z Tuesday through Saturday
Vfr conditions expected today, under the influence of high
pressure. Not seeing much in the way of fog near cho mrb, so
thinking chances are pretty slim, as dewpoint depressions are
still quite high. But can't rule it out around sunrise. Not
confident in sub-vfr conditions at this time though.

Clouds will be on the increase tonight ahead of a cold front
approaching from the west, which will push through Wednesday.

Southeast flow ahead of the front could bring in some low
marine-layer clouds (perhaps ifr) during the overnight hours.

Expect CIGS to gradually rise through the day, with MVFR
expected until the front pushes through. MVFR visbs will also be
possible in moderate rain.

Vfr will prevail through Wednesday night. Winds will increase
Wednesday night as well out of the wnw. If the core of the
winds do not mix to the surface, then a low level wind shear
set-up would be possible.

Vfr conditions are expected for Friday and Saturday with high
pressure in control.

Marine
Winds will be light today, under the influence of high pressure.

A cold front will approach from the west Tuesday night into
Wednesday, along with a low pressure sliding by to our
southeast. Southerly channeling could lead to some gusty winds
near SCA criteria throughout the day on Wednesday, so have
issued a small craft advisory to reflect such. Behind the cold
front, winds will really pick up, so SCA will likely be
extended, with gales possible into Thursday. SCA conditions
likely continue into Thursday night, before diminishing into
Friday morning.

High pressure will likely control the weather pattern for Friday and
Saturday, causing winds to be below SCA criteria for most of the
time.

Tides coastal flooding
High pressure will move offshore today, and a cold front will
approach from the west tonight into Wednesday. This will cause a
southeast flow to strengthen a bit, and this will lead to elevated
water levels. Minor flooding is possible for sensitive areas with
the high tide cycle later this afternoon into tonight, and again for
Wednesday. A strong offshore flow will develop behind the cold front
Wednesday evening, and anomalies should drop sharply.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory from 6 am to 6 pm edt Wednesday for
anz533-534-537-541>543.

Synopsis... Cjl
near term... Cjl
short term... Cjl
long term... Bjl
aviation... Bjl cjl
marine... Bjl cjl
tides coastal flooding... Bjl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 4 mi67 min NW 4.1 G 5.1 57°F 1020.6 hPa (+1.0)
FSNM2 4 mi73 min NNW 6 G 7 1020.4 hPa
BLTM2 - 8574680 - Baltimore, MD 8 mi67 min N 4.1 G 6 56°F 70°F1020.3 hPa (+1.1)
APAM2 - 8575512 - Annapolis, MD 13 mi67 min 55°F 1020 hPa (+1.0)
44063 - Annapolis 14 mi43 min W 3.9 G 3.9 59°F 67°F1020.7 hPa
CPVM2 14 mi67 min 59°F
TCBM2 - 8573364 - Tolchester Beach, MD 16 mi73 min ENE 2.9 G 4.1 51°F 66°F1020.6 hPa
TPLM2 - Thomas Point, MD 19 mi67 min NW 5.1 G 5.1 60°F 67°F1021.4 hPa (+1.0)53°F
BSLM2 - Chesapeake Bay, MD 28 mi157 min NW 1 47°F 1020 hPa47°F
WASD2 - 8594900 - Washington, DC 33 mi67 min Calm G 1 54°F 69°F1020.8 hPa (+1.0)
44062 - Gooses Reef, MD 42 mi55 min ENE 7.8 G 7.8 63°F 1021.3 hPa
CHCM2 - 8573927 - Chesapeake City, MD 46 mi67 min Calm G 1 48°F 66°F1021 hPa (+1.4)
CA2 - 8571892 - Cambridge, MD 47 mi67 min NNE 7 G 8.9 60°F 67°F1020.2 hPa (+1.1)

Wind History for Francis Scott Key Bridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Baltimore, Baltimore-Washington International Airport, MD8 mi13 minW 310.00 miFair46°F42°F86%1021 hPa
Baltimore, Inner Harbor, MD9 mi13 minno data mi54°F42°F64%1021.3 hPa
Annapolis, United States Naval Academy, MD13 mi73 minNW 310.00 miFair55°F52°F90%1020.6 hPa
Baltimore / Martin, MD14 mi72 minN 010.00 miClear46°F44°F93%1021 hPa
Fort Meade / Tipton, MD14 mi25 minN 010.00 miFair39°F37°F93%1022.3 hPa
Bay Bridge Field, MD17 mi27 minN 010.00 miFair50°F48°F94%1021 hPa
College Park Airport, MD24 mi24 minN 010.00 miFair42°F40°F93%1021.3 hPa

Link to 5 minute data for KBWI

Wind History from BWI (wind in knots)
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Last 24hrCalmW34W8W10
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W4SW3SW4CalmW3CalmCalmCalmW4CalmCalmNW3CalmW3
1 day agoN4N5NE5E9E7NE76E8E5SE5SE5CalmE6E4E4E3CalmCalmCalmCalmW3NW3W5W3
2 days agoW3CalmCalm34S35W6NW7W9W5NW5W4W4W5W3NW5N6NW4NW6NW3CalmCalmNE5

Tide / Current Tables for Stony Creek, Patapsco River, Maryland
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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 -- 01:06 AM EDT     -0.91 knots Max Ebb
Tue -- 04:29 AM EDT     0.00 knots Slack
Tue -- 07:12 AM EDT     0.62 knots Max Flood
Tue -- 07:14 AM EDT     Sunrise
Tue -- 08:42 AM EDT     Moonset
Tue -- 10:01 AM EDT     -0.00 knots Slack
Tue -- 12:58 PM EDT     -0.67 knots Max Ebb
Tue -- 03:46 PM EDT     0.00 knots Slack
Tue -- 06:27 PM EDT     Sunset
Tue -- 07:14 PM EDT     0.98 knots Max Flood
Tue -- 07:46 PM EDT     Moonrise
Tue -- 10:35 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.8-0.9-0.8-0.6-0.20.20.50.60.60.30-0.3-0.6-0.7-0.6-0.30.10.50.810.90.70.3-0.2

Weather Map
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wmap_A
GEOS Local Image of Mid-Atlantic    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 (7,2,3,4)
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Ground Weather Radar Station Dover AFB, DE
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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.