Thursday, August24, 2017

Marine Weather and Tides
Madison, 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 6:25AMSunset 7:46PM Thursday August 24, 2017 6:40 AM EDT (10:40 UTC) Moonrise 8:22AMMoonset 8:41PM Illumination 5% Phase: Waxing Crescent; Moon at 2 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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ANZ533 Chesapeake Bay From North Beach To Drum Point- 551 Am Edt Thu Aug 24 2017
Today..N winds 5 to 10 kt. Waves 1 to 2 ft.
Tonight..N winds 5 kt. Waves less than 1 ft.
Fri..N winds 5 to 10 kt. Waves 1 ft.
Fri night..NE winds 5 to 10 kt. Waves 1 ft.
Sat..NE winds 5 to 10 kt. Waves 1 ft.
Sat night..NE winds 5 kt. Waves less than 1 ft.
Sun..E winds 5 to 10 kt. Waves 1 to 2 ft.
Mon..E winds 5 to 10 kt. Waves 2 to 3 ft.
ANZ500 551 Am Edt Thu Aug 24 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will drift from the great lakes today to the northeastern united states this weekend.

7 Day Forecast for Marine Location Near Madison, MD
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location: 38.49, -76.22     debug

Area Discussion for - Wakefield, VA
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Fxus61 kakq 241027
area forecast discussion
national weather service wakefield va
627 am edt Thu aug 24 2017

A frontal boundary with weak waves of low pressure moving along
it, will push farther southeast of the area today into Friday.

Meanwhile, strong high pressure will gradually build in from the
northwest, then builds eastward across the great lakes and new
england Friday afternoon through Sunday. Low pressure lifts
offshore Monday through Tuesday.

Near term until 6 pm this evening
Early this morning, a frontal boundary was just south of the
region, extending fm well off the va coast SW along the outer
banks of nc and down into ERN sc. Latest radar showed just
isolated showers over NE nc and the south central va piedmont.

Potent shortwave digs over the lower great lakes into the ohio
valley during today, as the frontal boundary pushes farther se
of the region. A few weak waves of low pressure moving along the
boundary, still could trigger isolated to sctd showers over
extrm SE va, but esply NE nc today into this evening. North to
northeast flow will keep sky conditions partly sunny to mostly
cloudy acrs the area. Cooler and less humid, with highs in the
lower to mid 80s.

Short term 6 pm this evening through Friday night
Trough axis slides north of the region tonight into Fri morning,
along with the deepest moisture and best chances for measurable
pcpn. Generally partly cloudy tonight with lows in the lower to
mid 60s most places, except upper 60s near the coast of SE va
and NE nc.

Onshore flow persists fri, as model soundings indicate lingering
low level moisture. Perturbations in the fast west to northwest
flow along with convergence near the coast will result in a
slight chance pop Fri aftn. Some modest instability is indicated,
but will keep only shower wording due to stable onshore flow.

Sky will average partly cloudy with highs in the lower 80s.

Partly to mostly cloudy Fri night, as high pressure builds
north of the region. Lows generally in the lower to mid 60s.

Some locales in the piedmont forecast to drop into the upper

Long term Saturday through Wednesday
High pressure builds from the great lakes across the saint
lawrence valley and into new england Fri night through Sunday
bringing mild and mainly dry conditions. Highs Sat through
sun will generally be in the upper 70s to low 80s with lows in
the upper 50s to low 60s, and mid upper 60s at the coast. Low
pressure (potentially tropical) eventually develops along a
stalled frontal boundary off the carolina coast early next week.

This could potentially bring some moisture into the region in
the Monday- Wednesday timeframe, but pops are only 20-30% at
this time. Expect a modestly strong ene wind along the coast
with strong high pressure N of the region and developing low
pressure off the carolina coast. High temperatures Monday
through Wednesday remain in the upper 70s to low 80s, with lows
ranging through the 60s.

Aviation 12z Thursday through Monday
Early this morning, a frontal boundary was just south of the
region, extending fm well off the va coast SW along the outer
banks of nc and down into ERN sc. Sfc winds were nw-ne 3-10 kt
at the TAF sites. MainlyVFR CIGS at the TAF sites, except
ifr MVFR CIGS at ecg.

High pressure will gradually build in from the northwest today
into Fri morning, pushing the frontal boundary well SE of the
area. An uptick in nne winds will occur during today, due to a
surge of cool advection. Except for MVFR CIGS at ecg early this
morning, and maybe a few showers there during the day, expect
mainlyVFR conditions at the TAF sites today into Fri morning.

High pressure slowly builds north of the region Fri into sun,
with periods of clouds due to onshore flow. Winds remain north
or northeast.

Went ahead and cancelled the SCA for the middle of the bay and
lower james river as the winds are not much more than 15 kts.

Kept sca's up another few hours for the southern bay due to a
few gusts around 20 kts. Winds continue to diminish through the

Flow remains ene through the weekend as strong high pressure builds
n of the region across new england. Winds should remain below sca
levels sat, 10-15kt 15-20kt ocean, then increase more significantly
early next week as low pressure (potentially tropical) develops
along a stalled frontal boundary to our south then gradually lifts
nne through the mid week period. A prolong period of onshore winds
increases to 15-20kt 20-25kt ocean (potentially 25-30kt S of cape
charles). Seas build to 3-4ft sat, 5-7ft sun, and potentially 6-10ft
by mon. This will likely result in an elevated risk of rip currents
next week.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 10 am edt this morning for anz632-

Synopsis... Tmg
near term... Tmg
short term... Sam tmg
long term... Ajz
aviation... Tmg
marine... Mpr

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 10 mi41 min 73°F 81°F1013.9 hPa (+1.1)
44062 - Gooses Reef, MD 11 mi31 min ENE 9.7 G 12 77°F 1 ft1014 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 11 mi41 min NE 9.9 G 11 75°F 1013.8 hPa (+1.1)
SLIM2 - 8577330 - Solomons Island, MD 17 mi41 min NW 5.1 G 7 73°F 81°F
BISM2 - 8571421 - Bishops Head, MD 21 mi41 min NNE 6 G 8.9 73°F 79°F1013 hPa (+1.2)
PPTM2 - 8578240 - Piney Point, MD 30 mi41 min NNE 8 G 8.9
TPLM2 - Thomas Point, MD 30 mi41 min N 12 G 14 73°F 80°F
44042 - Potomac, MD 32 mi31 min NE 12 G 14 78°F 1012.3 hPa
BSLM2 - Chesapeake Bay, MD 33 mi131 min Calm 59°F 1013 hPa
44063 - Annapolis 35 mi31 min ESE 7.8 G 9.7
LWTV2 - 8635750 - Lewisetta, VA 37 mi41 min NE 6 G 8.9 76°F 81°F1012.9 hPa (+1.3)
APAM2 - 8575512 - Annapolis, MD 37 mi41 min 71°F 1013.1 hPa (+1.2)
NCDV2 45 mi41 min NNW 2.9 G 6 71°F 81°F1012.6 hPa (+1.2)
44043 - Patapsco, MD 47 mi31 min NNE 12 G 16 73°F 1 ft1013.8 hPa

Wind History for Cambridge, MD
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD11 mi71 minNNE 410.00 miOvercast66°F64°F94%1013.2 hPa
Patuxent River, Naval Air Station, MD17 mi49 minW 310.00 miMostly Cloudy70°F69°F97%1013.1 hPa
St Marys County Airport, MD21 mi64 minN 010.00 miOvercast68°F62°F83%1013.9 hPa
Easton / Newman Field, MD23 mi46 minNE 410.00 miMostly Cloudy68°F62°F83%1014.6 hPa

Wind History from CGE (wind in knots)
Last 24hrCalmNW4NW86NW5N4N7N6N7N9NW4E3CalmCalmCalmCalmCalmCalmCalmCalmCalmN4CalmCalm
1 day agoS4S6S5
2 days agoCalmCalmSE4SE5S66

Tide / Current Tables for Woolford, Church Creek, Little Choptank River, Maryland
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Thu -- 12:13 AM EDT     0.61 feet Low Tide
Thu -- 05:48 AM EDT     2.30 feet High Tide
Thu -- 06:27 AM EDT     Sunrise
Thu -- 09:21 AM EDT     Moonrise
Thu -- 12:52 PM EDT     0.53 feet Low Tide
Thu -- 06:20 PM EDT     2.16 feet High Tide
Thu -- 07:46 PM EDT     Sunset
Thu -- 09:40 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Cove Point (1.1 mi. NE of), Maryland Current
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Cove Point (1.1 mi. NE of)
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Thu -- 02:03 AM EDT     0.00 knots Slack
Thu -- 04:58 AM EDT     0.65 knots Max Flood
Thu -- 06:28 AM EDT     Sunrise
Thu -- 08:14 AM EDT     -0.00 knots Slack
Thu -- 09:22 AM EDT     Moonrise
Thu -- 11:37 AM EDT     -0.70 knots Max Ebb
Thu -- 02:36 PM EDT     0.00 knots Slack
Thu -- 05:32 PM EDT     0.67 knots Max Flood
Thu -- 07:46 PM EDT     Sunset
Thu -- 08:58 PM EDT     -0.00 knots Slack
Thu -- 09:41 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Mid-Atlantic    EDIT

Wind Forecast for Wakefield, VA (6,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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weather_mapweather_map weather_map

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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 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 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.