Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Calvert 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 6:27PM Tuesday October 17, 2017 4:29 PM EDT (20:29 UTC) Moonrise 3:55AMMoonset 4:39PM Illumination 7% Phase: Waning Crescent; Moon at 27 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
    EDIT      (on/off)   Help
ANZ533 Chesapeake Bay From North Beach To Drum Point- 231 Pm Edt Tue Oct 17 2017
This afternoon..N winds 10 kt. Waves 2 ft.
Tonight..W winds around 5 kt. Waves 1 ft or less.
Wed..SW winds 5 kt. Waves less than 1 ft.
Wed night..S winds 5 kt. Waves less than 1 ft.
Thu..SW winds 5 kt. Waves less than 1 ft.
Thu night..W winds 5 to 10 kt. Waves 1 ft.
Fri..N winds 5 to 10 kt. Waves 1 ft or less.
Sat..S winds around 5 kt. Waves 1 ft or less.
ANZ500 231 Pm Edt Tue Oct 17 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain in place through the rest of the week and into the weekend.

7 Day Forecast for Marine Location Near Calvert Beach CDP, MD
   Hourly   EDIT   Help
location: 38.5, -76.5     debug


Area Discussion for - Baltimore, MD/Washington
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 klwx 171850
afdlwx
area forecast discussion
national weather service baltimore md washington dc
250 pm edt Tue oct 17 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
A sprawling area of high pressure will continue moving into the
area this afternoon, cresting overhead late tonight and
Wednesday morning. This will result in sunny skies and
relatively light winds through the rest of the afternoon, with
clear skies and calm winds overnight. This will provide for
ideal radiational cooling conditions, with lows in the 30s for
much of the area, except in the 40s in the immediate urban
centers and along the shorelines of the chesapeake and tidal
potomac. The growing season ended last night for western
allegheny, mineral, grant, pendleton, and highland counties, so
no frost freeze headlines there. Otherwise we have issued freeze
warnings in the shenandoah valley for lows 30-32f, and frost
advisories for much of the rest of the area, except the zones along
the western shore of the chesapeake bay. The coldest readings
will be in sheltered valleys away from large bodies of water and
away from urban areas.

Short term Wednesday through Thursday night
Surface high pressure will remain in control Wednesday, although
will gradually shift southward by Wednesday night as a weak
system moves into new england Wednesday night into Thursday. We
may see an increase in some high clouds Wednesday night into
Thursday morning as the system passes by to the north, but
otherwise no sensible impacts. High pressure will then expand
back northward Thursday night.

Temperatures will be moderating through the week, with highs
Wednesday in the upper 60s to around 70f, and reaching the low
to mid 70s on Thursday. Low temperatures will be a bit milder
than tonight, generally from 35-45f Wednesday night and 40-50f
Thursday night, with 50s in the urban centers and along the
chesapeake and tidal potomac shorelines. There may be some areas
of frost again Wednesday night given these temperatures,
although not as widespread as tonight.

Long term Friday through Monday
High pressure system centered near or over our area
will keep dry condition on Friday as it slowly moves offshore on
Saturday. Condtions will continue to be dry on Sunday as it moves
away from the coast.

A cold front will approach from the west on Monday with a wave
of low pressure tracking through it as an upper level trough
amplifies over eastern conus. Guidance suggest precipitation
associated with the cold front could start as early as Monday
afternoon and last into Tuesday with periods of heavy rain at
times.

High temperatures will be between the low to mid 70s on Friday to
the mid to upper 70s on Monday. High temperature decreases on
Tuesday into the 60s.

Aviation 19z Tuesday through Sunday
High pressure will provide mostly clear skies and light winds
through Sunday.

Marine
High pressure will crest overhead tonight and remain nearby
through Saturday, before moving offshore Sunday. A weak system
will pass by to the north Thursday night. Winds will be 10 kt
or less for much of the time, with the exception of Thursday
night when gusts may approach small craft advisory criteria.

Tides coastal flooding
Anomalies have begun to recover today as northwest winds have
abated. While no flooding is currently forecast, the sensitive
sites of straits point, annapolis, and washington dc may
reach action stage and will need to be monitored.

Lwx watches warnings advisories
Dc... Frost advisory from 1 am to 9 am edt Wednesday for dcz001.

Md... Frost advisory from 1 am to 9 am edt Wednesday for mdz003>006-
013-016-017-502>507.

Va... Frost advisory from 1 am to 9 am edt Wednesday for vaz028>031-
036>040-050>057-501-502-505-506.

Freeze warning from 1 am to 9 am edt Wednesday for vaz025>027.

Wv... Frost advisory from 1 am to 9 am edt Wednesday for wvz050>053-
055.

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
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44062 - Gooses Reef, MD 6 mi40 min NE 3.9 G 5.8 57°F 1029.1 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 9 mi42 min NNE 5.1 G 8 55°F 1027.3 hPa
SLIM2 - 8577330 - Solomons Island, MD 13 mi48 min NNE 1.9 G 4.1 58°F 70°F1026.3 hPa
BSLM2 - Chesapeake Bay, MD 22 mi120 min N 2.9 59°F 1026 hPa32°F
CA2 - 8571892 - Cambridge, MD 23 mi42 min 60°F 67°F1027.3 hPa
PPTM2 - 8578240 - Piney Point, MD 25 mi42 min SW 1.9 G 5.1
TPLM2 - Thomas Point, MD 28 mi30 min ESE 2.9 G 4.1 56°F 68°F
NCDV2 31 mi42 min SSW 1.9 G 4.1 62°F 66°F1025.6 hPa
BISM2 - 8571421 - Bishops Head, MD 31 mi42 min NW 1 G 5.1 58°F 62°F1026.7 hPa
44063 - Annapolis 32 mi40 min ESE 3.9 G 5.8 56°F 1025.5 hPa
APAM2 - 8575512 - Annapolis, MD 33 mi42 min 57°F 1025.9 hPa
44042 - Potomac, MD 33 mi40 min NNE 9.7 G 12 57°F 1026.2 hPa
LWTV2 - 8635750 - Lewisetta, VA 35 mi42 min E 4.1 G 6 57°F 64°F1026.5 hPa
CPVM2 35 mi42 min 57°F 38°F
WASD2 - 8594900 - Washington, DC 38 mi42 min SW 4.1 G 6 62°F 69°F1026.2 hPa
44043 - Patapsco, MD 45 mi40 min SSE 5.8 G 7.8 56°F 1027.4 hPa

Wind History for Cove Point LNG Pier, MD
(wind in knots)    EDIT      (on/off)   Help
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last
24hr
N13
G22
N21
N13
G18
N19
G23
N19
G27
N23
G28
N19
G26
N23
N24
G29
N20
G29
NE21
G27
NE20
NE14
G20
NE20
NE17
G24
NE17
G23
NE17
G24
NE16
G22
NE15
G19
NE11
G16
N11
G16
N8
G16
N7
G11
NE7
G12
1 day
ago
SW15
SW11
S8
S10
S15
SW15
SW18
G23
SW15
G20
SW18
G23
SW17
G22
NW9
G12
NW9
G14
N27
N28
N15
G20
N15
G21
NW10
NW10
G17
N18
N17
G23
N17
G27
N19
G25
N17
N19
G24
2 days
ago
N9
N8
G11
N5
G8
NE5
NE3
N3
E3
NE1
NW2
W3
W4
W3
W5
W9
SW9
SW8
G11
SW9
G12
SW12
G19
SW15
SW11
SW15
G20
SW15
G21
SW17
G24
SW16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Patuxent River, Naval Air Station, MD15 mi38 minNE 610.00 miA Few Clouds59°F39°F49%1026.6 hPa

Wind History from NHK (wind in knots)
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
Last 24hrN10
G15
N8N7N9NW11N12N11N13NW13NW12NE9
G15
NE14
G18
N14NE12NE12NE9NE11NE12
G17
N13N10
G17
N7N9N7
G16
NE6
1 day agoSW5S5S5S6S7S11SW10
G18
SW10SW11W11W7NW11NW18
G25
N14NW11N6NW11N15NW16NW12NW18
G24
NW14
G18
N14N12
2 days agoN5N5N4N3CalmN4--W4W3W3CalmW4CalmSW4SW4SW6SW6SW7SW10SW10SW14
G18
SW11
G19
SW13
G17
SW7
G16

Tide / Current Tables for Long Beach, Maryland
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Long Beach
Click for Map
Tue -- 01:13 AM EDT     1.48 feet High Tide
Tue -- 04:55 AM EDT     Moonrise
Tue -- 07:17 AM EDT     Sunrise
Tue -- 07:57 AM EDT     0.30 feet Low Tide
Tue -- 01:41 PM EDT     1.42 feet High Tide
Tue -- 05:39 PM EDT     Moonset
Tue -- 06:24 PM EDT     Sunset
Tue -- 08:13 PM EDT     0.34 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.51.41.31.10.80.60.40.30.40.60.91.21.41.41.31.10.90.60.40.30.40.60.9

Tide / Current Tables for Broomes Island, 0.4 mile south of, Maryland Current
   EDIT      (on/off)   Help   One Week of Data
Broomes Island
Click for MapFlood direction 290 true
Ebb direction 110 true

Tue -- 01:49 AM EDT     -0.00 knots Slack
Tue -- 04:55 AM EDT     Moonrise
Tue -- 04:58 AM EDT     -0.53 knots Max Ebb
Tue -- 07:17 AM EDT     Sunrise
Tue -- 08:02 AM EDT     0.00 knots Slack
Tue -- 11:02 AM EDT     0.49 knots Max Flood
Tue -- 02:30 PM EDT     -0.00 knots Slack
Tue -- 05:36 PM EDT     -0.55 knots Max Ebb
Tue -- 05:39 PM EDT     Moonset
Tue -- 06:24 PM EDT     Sunset
Tue -- 08:49 PM EDT     0.00 knots Slack
Tue -- 11:29 PM EDT     0.39 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.2-0-0.3-0.5-0.5-0.5-0.3-00.20.40.50.40.30.1-0.1-0.4-0.5-0.5-0.4-0.200.30.4

Weather Map and Satellite Images
       (on/off)   Help
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)
      (on/off)   Help

Ground Weather Radar Station Dover AFB, DE
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.