Saturday, April4, 2020
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Marine Weather and Tides
Riviera Beach, MD

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:43AMSunset 7:34PM Saturday April 4, 2020 10:25 PM EDT (02:25 UTC) Moonrise 2:30PMMoonset 3:58AM Illumination 91% Phase: Waxing Gibbous; Moon at 12 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- 741 Pm Edt Sat Apr 4 2020
Tonight..S winds 5 kt. Waves flat.
Sun..S winds 5 kt. Waves less than 1 ft.
Sun night..W winds 5 kt. Waves less than 1 ft. Showers likely.
Mon..N winds 5 kt. Waves less than 1 ft.
Mon night..S winds around 5 kt. Waves flat. A chance of showers.
Tue..SW winds 5 kt. Waves flat. Showers.
Tue night..S winds around 5 kt. Waves flat. A chance of showers.
Wed..N winds 5 to 10 kt. Waves 1 ft or less. A chance of showers in the morning.
Thu..S winds 5 to 10 kt...becoming nw. Waves 1 ft. Showers likely.
ANZ500 741 Pm Edt Sat Apr 4 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Weak high pressure will build in from the ohio valley through Sunday morning. A weak cold front will move in Sunday night before becoming diffuse on Monday. A low pressure system will approach from the midwest on Wednesday. Small craft advisory may be needed for the second half of the week.


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 050055 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 855 PM EDT Sat Apr 4 2020

SYNOPSIS. Weak high pressure from the Ohio Valley will remain in control through Sunday morning. A weak cold front will drop south across the region Sunday night with another weak high pressure building in Monday. The front will lift back north as a warm front on Tuesday. A low pressure system will approach from the midwest on Wednesday.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. Latest analysis depicts weak high pressure over our region. Some mid-level moisture lingers, mainly over eastern areas, so those areas will stay cloudier overnight, but clouds will also start to move in from the west, so either way, clear skies not expected. Lows will be a little milder than recent nights as the flow turns more southerly.

SHORT TERM /6 AM SUNDAY MORNING THROUGH MONDAY NIGHT/. Isolated to scattered showers are possible Sunday into early Monday (from west to east) as a weak cold front approaches and moves through our region Sunday night. High res guidance brings the highest amount of QPF Sunday evening into the night, but totals remaining below a tenth of an inch over most areas, except over portions of western MD and the WV Panhandle where there could be up to two tenths of an inch.

Southerly flow dominates ahead of this front on Sunday with high temperatures expected to reach the 60s across most of our region and into the low 70s over central VA.

The front will stall just south of our area Monday. A weak high pressure will build just to our north. A few showers are possible Monday into Monday night over central VA and southern MD, but dry conditions expected elsewhere.

LONG TERM /TUESDAY THROUGH SATURDAY/. A warm front will lift north across the area Tuesday, resulting in some showers and perhaps a thunderstorm. A weak area of low pressure will be crossing the Great Lakes late Tuesday into Wednesday, deepening as it emerges off Long Island/southeastern New England late Wednesday. In its wake shortwave energy will carve out a deeper cyclone near the Great Lakes toward the end of the week. Local implications from this would be a stronger cold frontal passage either Thu night (ECMWF) or Fri (GEFS). Consequently, unsettled conditions will prevail through much of the extended forecast period. However, temperatures will remain mild until fropa.

AVIATION /01Z SUNDAY THROUGH THURSDAY/. VFR conditions expected over the terminals for tonight. A few showers could move over the terminals Sunday and into early Monday with a frontal boundary moving through our region, and intervals of MVFR cannot be ruled out. VFR and dry conditions expected behind this front Monday. Sub-VFR possible by Tuesday as front lifts back north as a warm front.

Flight restrictions possible midweek due to low ceilings and rain.

MARINE. Winds are expected to expected to remain below Small Craft Advisory criteria through Thursday.

TIDES/COASTAL FLOODING. Anomalies continue to build across the waters tonight thanks to excess water built up at the mouth of the bay becuase of the lingering coastal storm. As the flow turns southerly through Sunday, these anomalies can move up the bay and result in moderate flooding in the sensitive spots. Advisories, warnings and watches are now in place with further alterations expected. Main trend seems to be increasing anomalies, so the warning may need to be expanded/watch upgraded for Anne Arundel.

LWX WATCHES/WARNINGS/ADVISORIES. DC . Coastal Flood Advisory from 3 AM to 9 AM EDT Sunday for DCZ001. MD . Coastal Flood Advisory until 4 AM EDT Sunday for MDZ018. Coastal Flood Advisory until 11 AM EDT Sunday for MDZ508. Coastal Flood Advisory from 2 AM to 8 AM EDT Sunday for MDZ011. Coastal Flood Watch from 8 AM EDT Sunday through Sunday evening for MDZ014. Coastal Flood Advisory until 8 AM EDT Sunday for MDZ014. Coastal Flood Advisory until 7 AM EDT Sunday for MDZ016. Coastal Flood Warning until 2 PM EDT Sunday for MDZ017. VA . Coastal Flood Advisory until 7 AM EDT Sunday for VAZ057. WV . None. MARINE . None.

SYNOPSIS . IMR/RCM NEAR TERM . IMR/RCM SHORT TERM . IMR/RCM LONG TERM . HTS/RCM AVIATION . IMR/HTS/JMG/RCM MARINE . IMR/HTS/JMG/RCM TIDES/COASTAL FLOODING . HTS/RCM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FSNM2 4 mi68 min SSE 5.1 G 7 53°F 1017.5 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 4 mi56 min SE 5.1 G 7 53°F 1017.6 hPa
BLTM2 - 8574680 - Baltimore, MD 8 mi56 min S 1 G 2.9 54°F 49°F1017.3 hPa
APAM2 - 8575512 - Annapolis, MD 13 mi56 min 53°F 1017.4 hPa
CPVM2 14 mi56 min 53°F
TCBM2 - 8573364 - Tolchester Beach, MD 16 mi62 min S 1.9 G 4.1 53°F 52°F1017.9 hPa
TPLM2 - Thomas Point, MD 19 mi86 min SE 2.9 G 2.9 51°F 51°F1018.6 hPa (+1.3)51°F
BSLM2 - Chesapeake Bay, MD 28 mi116 min SE 1.9 1016 hPa
WASD2 - 8594900 - Washington, DC 33 mi56 min SE 1.9 G 5.1 55°F 55°F1017.9 hPa
44062 - Gooses Reef, MD 42 mi32 min SE 5.8 G 5.8 52°F 978.7 hPa
CHCM2 - 8573927 - Chesapeake City, MD 46 mi56 min Calm G 1.9 49°F 51°F1017.9 hPa
CA2 - 8571892 - Cambridge, MD 47 mi56 min SE 4.1 G 7 52°F 53°F1018.1 hPa

Wind History for Francis Scott Key Bridge NE Tower, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Baltimore, Baltimore-Washington International Airport, MD8 mi32 minESE 310.00 miOvercast55°F42°F62%1017.6 hPa
Baltimore, Inner Harbor, MD9 mi32 minno data mi55°F42°F62%1018 hPa
Annapolis, United States Naval Academy, MD13 mi32 minSE 410.00 miOvercast53°F46°F77%1018.2 hPa
Baltimore / Martin, MD14 mi28 minS 410.00 miOvercast54°F46°F77%1018.6 hPa
Fort Meade / Tipton, MD14 mi41 minN 010.00 miOvercast52°F44°F77%1018.6 hPa
Bay Bridge Field, MD17 mi41 minSSE 610.00 miOvercast54°F50°F88%1018.3 hPa
College Park Airport, MD24 mi40 minN 010.00 miOvercast54°F40°F60%1017.9 hPa

Link to 5 minute data for KBWI

Wind History from BWI (wind in knots)
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Last 24hrN6
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N9N7NW7CalmN64NW4NW6NW5N7N645N7NE54E7SE4E5SE4E4E5E3
1 day agoNW14
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2 days agoNW46N7N5NW6W8W7W8W9W9W12NW13
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Tide / Current Tables for Fort Carroll, Maryland
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Fort Carroll
Click for Map
Sat -- 03:51 AM EDT     1.14 feet High Tide
Sat -- 04:57 AM EDT     Moonset
Sat -- 06:45 AM EDT     Sunrise
Sat -- 10:22 AM EDT     0.11 feet Low Tide
Sat -- 03:29 PM EDT     Moonrise
Sat -- 04:32 PM EDT     1.43 feet High Tide
Sat -- 07:33 PM EDT     Sunset
Sat -- 11:32 PM EDT     0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.60.91.11.110.90.60.40.20.10.10.30.60.91.21.41.41.31.10.90.60.40.3

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Sat -- 12:19 AM EDT     0.00 knots Slack
Sat -- 03:02 AM EDT     0.54 knots Max Flood
Sat -- 04:56 AM EDT     Moonset
Sat -- 05:51 AM EDT     -0.00 knots Slack
Sat -- 06:44 AM EDT     Sunrise
Sat -- 08:51 AM EDT     -0.60 knots Max Ebb
Sat -- 11:39 AM EDT     0.00 knots Slack
Sat -- 03:06 PM EDT     0.87 knots Max Flood
Sat -- 03:29 PM EDT     Moonrise
Sat -- 06:22 PM EDT     -0.00 knots Slack
Sat -- 07:32 PM EDT     Sunset
Sat -- 09:36 PM EDT     -0.86 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.10.20.40.50.50.3-0-0.3-0.5-0.6-0.5-0.20.10.50.80.90.80.50.2-0.3-0.6-0.8-0.8-0.7

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (22,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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 numerous 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.