Friday, January19, 2018 L-36.com


Marine Weather and Tides
Severna Park, 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 7:19AMSunset 5:14PM Friday January 19, 2018 6:24 PM EST (23:24 UTC) Moonrise 8:54AMMoonset 7:47PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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- 331 Pm Est Fri Jan 19 2018
Rest of this afternoon..SW winds 5 kt. Waves less than 1 ft.
Tonight..SW winds 5 kt. Waves flat.
Sat..SW winds 5 kt. Waves less than 1 ft.
Sat night..W winds 5 kt. Waves flat.
Sun..SW winds around 5 kt. Waves flat.
Sun night..S winds around 5 kt. Waves flat.
Mon..S winds 5 to 10 kt. Waves 1 ft or less. Showers through the night.
Tue..W winds 5 to 10 kt. Waves 1 ft. Showers likely through the day.
ANZ500 331 Pm Est Fri Jan 19 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build from the gulf coast to the eastern seaboard through this weekend. The next cold front will approach the area Monday and cross the area early Tuesday. Small craft advisories may be necessary Tuesday.

7 Day Forecast for Marine Location Near Severna Park, MD
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location: 39.07, -76.57     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 191923
afdlwx
area forecast discussion
national weather service baltimore md washington dc
223 pm est Fri jan 19 2018

Synopsis
High pressure to the south will dominate the weather through
the weekend. A cold front will approach the region Monday before
passing through Monday night into Tuesday. High pressure will return
for Wednesday through Thursday of next week before moving offshore
Friday.

Near term through tonight
High pressure extends from the southeastern CONUS to the mid
atlantic. Wave clouds still reside across southern pennsylvania
into western maryland; otherwise the forecast area is mostly
sunny aside from a few cirrus.

Winds never fully decoupled last night. Tonight's setup will be
quite similar aside from a lack of an offshore coastal cyclone.

Nonetheless, in light of good model agreement, am hesitant to
undercut low temperatures. Will therefore leave lows in the
upper 20s to near 30.

Short term Saturday through Sunday night
While the high pressure ridge remains in place through the
weekend, there will be a couple of transitory features in the
mean westerly flow: southern stream 500 mb shortwave cyclone
along the gulf coast, and northern stream low pressure across
southern canada with weak attendant boundary emanating
west southwest from it.

While neither will have a direct impact locally, warm advection
in the wake of the former disturbance will spread moisture
north Saturday-Saturday night. Saturday will still be sunny. At
this time, it appears as though any precip will be confined to
mountains Saturday night. Further, it is looking more likely
that temperatures will remain above freezing through this time,
so have removed mention of freezing rain.

Sunday will be cloudier, in part due to the pressure weakness.

But forcing will be too meager for anything but clouds.

Thermally, the cloud cover likely will lead to slightly cooler
temperatures, but highs will still be at-or-above 50 degrees.

Long term Monday through Friday
A cold front will approach from the west Monday before passing
through Monday night into Tuesday. Showers are expected ahead of the
boundary... Especially Monday night into Tuesday. A southerly flow
ahead of the boundary will allow for mild conditions Monday... But
low clouds and fog are possible and if this develops it would cause
temps to be a bit cooler than currently forecasted.

The cold front will move off to the east later Tuesday and high
pressure will return for Wednesday and Thursday. Dry and seasonably
chilly conditions are expected during this time.

The high will move offshore late in the week and milder conditions
will return due to a southerly flow.

Aviation 19z Friday through Wednesday
Vfr conditions will prevail through the weekend with high
pressure positioned just southwest of the terminals.

A cold front will approach from the west Monday. Low clouds and fog
are possible ahead of the cold front due to warm and moist air
overrunning cooler air near the surface... But confidence is low at
this time.

The cold front will pass through Monday night into Tuesday...

bringing showers and subvfr conditions. High pressure will return
for later Tuesday and Wednesday withVFR conditions likely.

Marine
Winds will be 10 kt or less through the weekend with high
pressure positioned southwest of the waters. Flow will have a
primary southwest component, but will veer west northwest by
Sunday as a front approaches.

A cold front will approach the waters Monday before passing through
Monday night or Tuesday. High pressure will return for the middle
portion of next week. A small craft advisory may be needed for
portions of the waters Monday night through Wednesday.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... None.

Synopsis... Bjl
near term... Hts
short term... Hts
long term... Bjl
aviation... Hts bjl
marine... Hts bjl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
APAM2 - 8575512 - Annapolis, MD 8 mi54 min 38°F 1016.9 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 11 mi54 min S 8 G 8.9 42°F 1017 hPa
FSNM2 11 mi54 min S 8.9 G 12 45°F 1016.4 hPa
CPVM2 11 mi54 min 35°F 28°F
TPLM2 - Thomas Point, MD 14 mi84 min S 9.9 G 9.9 37°F 33°F
BLTM2 - 8574680 - Baltimore, MD 14 mi54 min S 4.1 G 5.1 43°F 33°F1016.5 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi54 min S 4.1 G 6 39°F 33°F1017.3 hPa
BSLM2 - Chesapeake Bay, MD 21 mi114 min SW 5.1 51°F 1017 hPa
WASD2 - 8594900 - Washington, DC 28 mi54 min SSE 1.9 G 1.9 46°F 34°F1017.3 hPa
44062 - Gooses Reef, MD 36 mi44 min SSW 9.7 G 9.7 35°F 1018.2 hPa
CA2 - 8571892 - Cambridge, MD 43 mi54 min 41°F 32°F1018.6 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 47 mi54 min S 9.9 G 11 36°F 1018.6 hPa

Wind History for Francis Scott Key Bridge NE Tower, MD
(wind in knots)    EDIT      (on/off)   Help
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Last
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W13
G16
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NW3
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G18
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G21

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Annapolis, United States Naval Academy, MD8 mi30 minSSE 310.00 miFair40°F21°F49%1017.4 hPa
Baltimore, Baltimore-Washington International Airport, MD10 mi30 minSSE 410.00 miA Few Clouds42°F17°F36%1016.9 hPa
Fort Meade / Tipton, MD11 mi48 minSE 410.00 miFair37°F15°F41%1017.9 hPa
Bay Bridge Field, MD14 mi49 minSSE 47.00 miFair39°F19°F45%1017.6 hPa
Baltimore, Inner Harbor, MD15 mi30 minno data mi46°F16°F30%1017 hPa
Baltimore / Martin, MD20 mi39 minSE 710.00 miA Few Clouds39°F23°F52%1017.6 hPa
College Park Airport, MD20 mi47 minN 010.00 miFair40°F13°F34%1016.9 hPa
Camp Springs / Andrews Air Force Base, MD23 mi28 minS 610.00 miFair40°F11°F31%1017.9 hPa

Wind History from NAK (wind in knots)
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Last 24hrW3CalmCalmCalmN3CalmCalmCalmCalmN3CalmCalmNW3CalmCalmW7W9W10
G17
W8
G15
W56S8S8SE3
1 day agoNW12NW8NW12
G21
NW9
G18
NW9
G17
NW13
G19
NW9NW7NW11
G19
W4W5W3NW4W5NW5NW7
G17
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G19
W10W10
G20
NW8
G16
NW5W4
2 days agoSE3CalmCalmCalmCalmNW3NW5NW5NW6NW5NW7NW9
G15
NW9NW9NW10NW10
G20
NW15N12NW12NW13NW11NW12N13
G19
N12

Tide / Current Tables for Cedar Point, Severn River, Maryland
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Cedar Point
Click for Map
Fri -- 01:59 AM EST     -0.05 feet Low Tide
Fri -- 07:06 AM EST     0.39 feet High Tide
Fri -- 07:22 AM EST     Sunrise
Fri -- 08:53 AM EST     Moonrise
Fri -- 01:02 PM EST     -0.18 feet Low Tide
Fri -- 05:12 PM EST     Sunset
Fri -- 07:39 PM EST     0.69 feet High Tide
Fri -- 07:47 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-0-0-00.10.20.30.40.40.30.1-0-0.1-0.2-0.1-00.20.40.60.70.70.60.50.3

Tide / Current Tables for Baltimore Harbor Approach, Maryland Current
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Baltimore Harbor Approach
Click for Map
Fri -- 12:54 AM EST     -1.02 knots Max Ebb
Fri -- 04:33 AM EST     0.00 knots Slack
Fri -- 07:11 AM EST     0.58 knots Max Flood
Fri -- 07:21 AM EST     Sunrise
Fri -- 08:52 AM EST     Moonrise
Fri -- 10:03 AM EST     -0.00 knots Slack
Fri -- 12:45 PM EST     -0.52 knots Max Ebb
Fri -- 03:19 PM EST     0.00 knots Slack
Fri -- 05:11 PM EST     Sunset
Fri -- 06:52 PM EST     0.92 knots Max Flood
Fri -- 07:46 PM EST     Moonset
Fri -- 10:09 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.9-1-0.9-0.6-0.20.20.40.60.50.30-0.3-0.5-0.5-0.4-0.10.30.60.80.90.80.50.1-0.4

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 (18,4,5,8)
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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.