Friday, April20, 2018 L-36.com


Marine Weather and Tides
Dunkirk, MD

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:21AMSunset 7:51PM Friday April 20, 2018 11:52 PM EDT (03:52 UTC) Moonrise 9:04AMMoonset 11:55PM Illumination 32% Phase: Waxing Crescent; Moon at 6 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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ANZ532 Chesapeake Bay From Sandy Point To North Beach- 1033 Pm Edt Fri Apr 20 2018
.small craft advisory in effect until 3 am edt Saturday...
Rest of tonight..N winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
Sat..N winds 5 to 10 kt. Waves 1 ft.
Sat night..N winds around 5 kt. Waves flat.
Sun..SE winds around 5 kt. Waves 1 ft or less.
Sun night..S winds 5 kt. Waves flat.
Mon..SE winds 5 to 10 kt. Waves 1 ft or less.
Mon night..SE winds 5 to 10 kt. Waves 1 ft.
Tue..E winds 10 to 15 kt. Waves 1 to 2 ft. Rain.
Wed..NW winds 5 to 10 kt. Waves 1 ft. Rain in the morning, then showers.
ANZ500 1033 Pm Edt Fri Apr 20 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will build eastward from the upper midwest through the weekend, moving off the new england coast early next week. An area of low pressure over the deep south will approach the region mid week. Small craft advisories may be needed Monday into Tuesday.

7 Day Forecast for Marine Location Near Dunkirk, MD
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location: 38.72, -76.7     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 210120
afdlwx
area forecast discussion
national weather service baltimore md washington dc
920 pm edt Fri apr 20 2018

Synopsis
Strong high pressure will slowly migrate eastward into the
northeastern states by Sunday, and off the coast on Monday.

Unsettled weather is expected to return by the middle of next
week as low pressure approaches the area from the southeast u.S.

Near term until 6 am Saturday morning
Strong high pressure is centered over the great lakes and upper
midwest this evening. Satellite shows clear skies extending to
the ohio valley, with only a few thin cirrus propagating
eastward later tonight at worst.

Below normal temperatures are expected tonight with lows in the
30s. Went with cooler guidance as light winds are expected for
most areas (except a persistent light breeze over central md dc
metro). A freeze warning has been issued for much of the same
area as last night. Overall, temperature forecast seems to be on
track. Low levels remain dry, so any frost should be patchy.

Short term 6 am Saturday morning through Sunday night
Benign weather conditions are expected this weekend as high
pressure slowly shifts eastward from the great lakes into the
northeastern u.S. Light winds and below normal temperatures are
expected as a result. Mid to high level clouds will move
overhead Saturday afternoon and may persist into Sunday as a
jet MAX and mid level energy moves across our area. High
temperatures will be in the 60s with lows in the 30s and 40s,
though it should be warm enough to preclude frost freeze issues
in areas where the growing season has started.

Long term Monday through Friday
High pressure will shift offshore on Monday as a mid-level cutoff
trough and associated surface low move across portions of the
southeast. Conditions should remain mainly dry, with slightly
below normal temperatures.

On Tuesday, the aforementioned area of low pressure will slowly
track north toward our cwa. The latest deterministic guidance has
trended slightly slower with the northward progression of this area
of low pressure, suggesting it's possible that we remain dry much of
the day Tuesday as well. On the other hand, both the GEFS and
eps have many ensemble members that move the system along
faster, bringing precipitation in during the day Tuesday.

It appears as though the most likely time period for steadier
rainfall across the area will be Tuesday night, when both
deterministic and ensemble model guidance point toward a cool,
soaking rainfall across the region.

Forecast confidence decreases considerably for Wednesday and
Thursday, but the potential for active weather remains.

Aviation 01z Saturday through Wednesday
Vfr expected through the weekend with light winds as high
pressure passes to the north of the terminals.

Vfr conditions are expected during the day on Monday. MVFR
conditions likely begin to develop Mon night as easterly flow
ensues. Flight restrictions are likely Tuesday and Wednesday as
an area of low pressure approaches from the south bringing rain.

Winds will increase out of the east during this time as well.

Marine
Winds subsided quickly early this evening, but a subtle
pressure surge on the east side of ridging building to the north
will likely result in marginal SCA conditions in northerly
channeling over the maryland portion of the chesapeake bay.

Given trends in hi-res guidance, reconfigured the small craft
advisory, as the surge may enter northern portions of the bay by
10 pm and exit by 1-3 am. As high pressure builds further to
our north, light winds are expected over the weekend.

Sub SCA conditions are forecast Monday as a departing ridge of
high pressure will keep winds light over the waters. Sca
headlines may be needed Monday night through Tuesday as easterly
flow strengthens thanks to low pressure developing approaching
from the southeast u.S.

Tides coastal flooding
Persistent onshore flow is expected to result in increased tidal
anomalies and possible coastal flooding during the middle part
of next week.

Lwx watches warnings advisories
Dc... None.

Md... Freeze warning from 2 am to 9 am edt Saturday for mdz003>006-
503-505-507-508.

Va... Freeze warning from 2 am to 9 am edt Saturday for vaz025>031-
038>040-051-501-502-505>508.

Wv... Freeze warning from 2 am to 9 am edt Saturday for wvz051>053.

Marine... Small craft advisory until 3 am edt Saturday for anz531>533-
539>541.

Small craft advisory until 6 am edt Saturday for anz534-537-
543.

Synopsis... Imr dhof
near term... Ads imr dhof
short term... Imr dhof
long term... Kjp
aviation... Imr dhof kjp
marine... Ads imr dhof kjp
tides coastal flooding... Dhof


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BSLM2 - Chesapeake Bay, MD 4 mi142 min NNW 1.9 52°F 1028 hPa31°F
44062 - Gooses Reef, MD 19 mi42 min NW 5.8 G 5.8 51°F 1028.3 hPa
TPLM2 - Thomas Point, MD 19 mi52 min NE 12 G 14 51°F 50°F1029.2 hPa (+2.2)32°F
WASD2 - 8594900 - Washington, DC 20 mi52 min WNW 2.9 G 5.1 52°F 54°F1028.4 hPa (+1.9)
APAM2 - 8575512 - Annapolis, MD 22 mi52 min 51°F 1028 hPa (+2.5)
CPVM2 25 mi52 min 51°F 33°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 28 mi52 min SW 1.9 G 1.9 50°F 1028.6 hPa (+2.0)
SLIM2 - 8577330 - Solomons Island, MD 31 mi52 min W 1 G 1.9 48°F 52°F1027.8 hPa (+1.9)
NCDV2 33 mi52 min Calm G 1.9 47°F 56°F1027.7 hPa (+2.3)
CA2 - 8571892 - Cambridge, MD 35 mi52 min 49°F 54°F1028.9 hPa (+2.0)
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 36 mi52 min NNE 13 G 15 50°F 1028.5 hPa (+2.6)
FSNM2 36 mi52 min NNE 14 G 17 49°F 1028 hPa (+2.5)
BLTM2 - 8574680 - Baltimore, MD 38 mi52 min ENE 9.9 G 14 50°F 51°F1028.3 hPa (+2.6)
PPTM2 - 8578240 - Piney Point, MD 41 mi52 min W 1.9 G 1.9
TCBM2 - 8573364 - Tolchester Beach, MD 42 mi52 min NE 4.1 G 7 48°F 51°F1028.9 hPa (+2.7)
BISM2 - 8571421 - Bishops Head, MD 49 mi52 min W 2.9 G 2.9 52°F 55°F1028.2 hPa (+1.8)

Wind History for Washington, DC
(wind in knots)    EDIT      (on/off)   Help
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N6
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W5
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NW7
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--
SE2

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Camp Springs / Andrews Air Force Base, MD12 mi1.9 hrsNNW 610.00 miFair48°F25°F41%1028.2 hPa
Washington/Reagan National Airport, DC, VA20 mi60 minNNW 910.00 miFair53°F26°F35%1028.4 hPa
Annapolis, United States Naval Academy, MD21 mi58 minNNE 910.00 miFair53°F33°F47%1028.4 hPa
College Park Airport, MD22 mi75 minN 010.00 miFair43°F31°F63%1028.1 hPa

Wind History from ADW (wind in knots)
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Last 24hrNW16
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NW7NW15
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NW10NW10NW8W7W11NW16NW13
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NW11NW9N5N6Calm
1 day agoE4E3NE3CalmNW9NW12N8E5W4W5SW4SW4--W14
G22
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2 days agoNW11NW9NW6W6W6W4SW4W5NW8NW6W3NW6W8SW7SW8SW10W10SW6SW4E8E8SE11SE8SE5

Tide / Current Tables for Nottingham, Patuxent River, Maryland
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Nottingham
Click for Map
Fri -- 01:40 AM EDT     0.44 feet Low Tide
Fri -- 06:23 AM EDT     Sunrise
Fri -- 07:55 AM EDT     4.13 feet High Tide
Fri -- 10:04 AM EDT     Moonrise
Fri -- 03:40 PM EDT     0.62 feet Low Tide
Fri -- 07:48 PM EDT     Sunset
Fri -- 08:30 PM EDT     2.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.50.50.81.42.33.33.94.13.93.42.82.11.510.70.60.91.52.22.62.62.31.8

Tide / Current Tables for Broomes Island, 0.4 mile south of, Maryland Current
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Broomes Island
Click for MapFlood direction 290 true
Ebb direction 110 true

Fri -- 12:24 AM EDT     0.00 knots Slack
Fri -- 03:53 AM EDT     0.54 knots Max Flood
Fri -- 06:23 AM EDT     Sunrise
Fri -- 07:36 AM EDT     -0.00 knots Slack
Fri -- 10:04 AM EDT     Moonrise
Fri -- 10:55 AM EDT     -0.59 knots Max Ebb
Fri -- 02:39 PM EDT     0.00 knots Slack
Fri -- 04:51 PM EDT     0.24 knots Max Flood
Fri -- 07:42 PM EDT     -0.00 knots Slack
Fri -- 07:47 PM EDT     Sunset
Fri -- 10:37 PM EDT     -0.34 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.10.10.30.50.50.50.30.1-0.1-0.4-0.5-0.6-0.5-0.4-0.10.10.20.20.20.1-0.1-0.2-0.3-0.3

Weather Map and Satellite Images
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wmap_A
GOES 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.
target = "new">Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (23,6,7,8)
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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.