Monday, July24, 2017 L-36.com


Marine Weather and Tides
Long 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 6:02AMSunset 8:26PM Monday July 24, 2017 12:47 PM EDT (16:47 UTC) Moonrise 6:21AMMoonset 8:24PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 1222 Pm Edt Mon Jul 24 2017
This afternoon..SW winds 10 kt. Waves 1 ft. Isolated showers and tstms.
Tonight..NW winds 5 to 10 kt. Waves 1 ft. Scattered showers and tstms.
Tue..N winds 10 kt. Waves 1 ft.
Tue night..NE winds 5 to 10 kt. Waves 1 ft.
Wed..E winds 5 to 10 kt. Waves 1 ft.
Wed night..SE winds 5 to 10 kt. Waves 1 ft.
Thu..S winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and tstms through the night.
Fri..NW winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1222 Pm Edt Mon Jul 24 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will move across the waters late today into tonight. This will be followed by high pressure Tuesday and Wednesday. The next frontal system will approach on Thursday and pass through the region Friday. Small craft advisories may be needed Thursday and Friday.

7 Day Forecast for Marine Location Near Long Beach, MD
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location: 38.47, -76.47     debug


Area Discussion for - Baltimore, MD/Washington
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Fxus61 klwx 241317
afdlwx
area forecast discussion
national weather service baltimore md washington dc
917 am edt Mon jul 24 2017

Synopsis
A cold front will approach the area today before passing through
tonight. High pressure will build into the area Tuesday before
moving offshore Wednesday. Another cold front will approach the
area Thursday before passing through Friday into Friday night.

High pressure may return for the weekend.

Near term today
Low pressure over pa with an attendant cold front over wv. The
front will move across the region late this afternoon and
evening. A mix of Sun and clouds is expected into the afternoon.

Temperatures expected to rise back into the upper 80s and low
90s, and with dew points from the mid 60s to low 70s. We'll see
heat indices back into the mid to upper 90s, perhaps locally
near 100f along the i-95 corridor.

As the cold front moves across the region, additional scattered
showers and thunderstorms are possible. Storm prediction center
has placed portions of the region in a marginal risk for severe
thunderstorms. With surface westerly flow developing today
leading to dew points a bit lower than previous days, and weak
mid-level lapse rates, environment is not as conducive for
widespread activity. That being said, MLCAPE is still progged to
reach 1000 j kg or so, with 35-40 knots of 0-6km overlaid, and
with a cold front serving as a focus for convective activity,
there is certainly a risk for isolated to scattered severe
thunderstorms, with linear segments and localized wind damage
being the primary threat.

Short term tonight through Wednesday night
Quieter, cooler, and drier weather is expected beginning
tonight and lasting through Wednesday night.

The aforementioned cold front will continue pushing
southeastward and clear the area by Tuesday morning. This will
usher in relatively cooler and drier air with dew points falling
through the 60s overnight. Lows overnight from the mid 60s to
low 70s.

High pressure building in behind the front will move from the
great lakes into the northeastern us Tuesday, leading to
northerly surface flow across our region. A mix of Sun and fair
weather cumulus clouds expected for Tuesday with highs in the
80s and dew points in the low to mid 60s, which will be a
noticeable difference. Quiet weather continues Tuesday night
with the caveat that there may be some patchy fog and low clouds
around early Wednesday morning. Lows Tuesday night in the 60s
to near 70f.

The high will slide offshore Wednesday with the low level flow
turning easterly and then southeasterly. Should see mostly dry
conditions, although an isolated shower or thunderstorm can't be
ruled out. Highs will likely actually be a bit below normal for
late july, in the low to mid 80s. Potential will exist again for
some patchy fog and low clouds Wednesday night into early
Thursday morning, but otherwise quiescent weather expected
Wednesday night with lows in the 60s to around 70f.

Long term Thursday through Sunday
A cold front and its associated upper-level trough will approach
the area Thursday into Thursday night before passing through
Friday. Warm and humid conditions are expected ahead of the
front Thursday. Showers and thunderstorms are possible ahead of
the cold front... Especially late Thursday into Friday.

High pressure may build into the region behind the
front... Bringing dry... Cooler and less humid conditions.

Aviation 13z Monday through Friday
Vfr is expected today. There may be some isolated to scattered
showers and thunderstorms later this afternoon and evening.

PrimarilyVFR is then expected overnight through Wednesday
night, although we'll have to monitor for patchy fog and low
clouds both Tuesday night and Wednesday night with onshore flow.

Showers and thunderstorms are possible ahead of a cold
front... Mainly late Thursday into Friday.

Marine
Small craft advisory is in effect through 4 pm across the
lower tidal potomac and portions of the central chesapeake for
gusty southwesterly winds. These winds will diminish late this
afternoon with mainly sub-sca winds expected for the rest of
today and through Wednesday night.

There may be some isolated to scattered showers and
thunderstorms this afternoon and evening. Special marine
warnings may be necessary.

A cold front will approach the waters Thursday into Thursday
night before passing through Friday. Showers and thunderstorms
are possible ahead of the front... Especially late Thursday into
Friday. A small craft advisory may be needed for portions of the
waters Thursday and Friday. High pressure may return for the
weekend.

Tides coastal flooding
Coastal flood advisories in effect for the district of columbia
this morning. No other tidal issues expected at this time.

Lwx watches warnings advisories
Dc... Coastal flood advisory until 11 am edt this morning for dcz001.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory until 4 pm edt this afternoon for anz534-
537-543.

Update... Woody!
previous... Mjm bjl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
COVM2 - 8577018 - Cove Point LNG Pier, MD 7 mi47 min NNW 5.1 G 8 81°F 1010.7 hPa (+0.9)
44062 - Gooses Reef, MD 7 mi37 min NW 3.9 G 5.8 82°F 1 ft1011.1 hPa
SLIM2 - 8577330 - Solomons Island, MD 10 mi47 min NW 6 G 9.9 82°F 84°F
CA2 - 8571892 - Cambridge, MD 22 mi47 min 85°F 87°F1010.6 hPa (+1.0)
PPTM2 - 8578240 - Piney Point, MD 23 mi47 min WNW 8.9 G 9.9
BSLM2 - Chesapeake Bay, MD 25 mi137 min NW 4.1 78°F 1009 hPa68°F
BISM2 - 8571421 - Bishops Head, MD 29 mi47 min WNW 11 G 14 81°F 82°F1010.3 hPa (+1.0)
TPLM2 - Thomas Point, MD 30 mi47 min W 8 G 9.9 81°F 82°F
44042 - Potomac, MD 31 mi37 min WNW 7.8 G 9.7 81°F 1 ft1009.5 hPa
NCDV2 32 mi47 min SW 1.9 G 5.1 82°F 85°F1009.4 hPa (+0.8)
LWTV2 - 8635750 - Lewisetta, VA 33 mi47 min W 2.9 G 4.1 82°F 85°F1010.3 hPa (+1.1)
44063 - Annapolis 34 mi37 min N 5.8 G 7.8 82°F 1009.4 hPa
APAM2 - 8575512 - Annapolis, MD 35 mi47 min 83°F 1009.1 hPa (+0.6)
CPVM2 37 mi47 min 84°F 71°F
WASD2 - 8594900 - Washington, DC 40 mi47 min NNW 5.1 G 11 85°F 86°F1009.5 hPa (+0.0)
44043 - Patapsco, MD 47 mi37 min WNW 7.8 G 7.8 82°F 1 ft1010.4 hPa

Wind History for Cove Point LNG Pier, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St Marys County Airport, MD12 mi70 minNW 510.00 miPartly Cloudy81°F69°F70%1011.2 hPa
Patuxent River, Naval Air Station, MD13 mi55 minNW 710.00 miMostly Cloudy84°F73°F70%1010.1 hPa
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD23 mi54 minW 510.00 miFair83°F75°F77%1010 hPa
Cambridge-Dorchester Airport, MD24 mi57 minW 910.00 miA Few Clouds82°F71°F70%1009.8 hPa

Wind History from 2W6 (wind in knots)
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Last 24hrSW4SW4NW3CalmSW3E3SE5SE4CalmSE3SE3S5SW10
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1 day agoSW8W9W7N7CalmCalmN4
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W3CalmS6E4SE4CalmCalmCalmCalmCalmCalmSW3SW6W4W5W6S5
2 days agoNW3CalmW5W5S4CalmSE5S3CalmSE3CalmS3SW9W5SW4SW6W4W3W5W4NW5W5W3Calm

Tide / Current Tables for Long Beach, Chesapeake Bay, Maryland
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Long Beach
Click for Map
Mon -- 04:12 AM EDT     1.83 feet High Tide
Mon -- 06:01 AM EDT     Sunrise
Mon -- 07:21 AM EDT     Moonrise
Mon -- 11:05 AM EDT     0.29 feet Low Tide
Mon -- 04:32 PM EDT     1.26 feet High Tide
Mon -- 08:23 PM EDT     Sunset
Mon -- 09:24 PM EDT     Moonset
Mon -- 10:20 PM EDT     0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.71.11.41.71.81.81.61.30.90.60.40.30.40.60.81.11.21.21.10.80.60.40.20.3

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

Mon -- 12:57 AM EDT     0.62 knots Max Flood
Mon -- 04:34 AM EDT     -0.00 knots Slack
Mon -- 06:01 AM EDT     Sunrise
Mon -- 07:21 AM EDT     Moonrise
Mon -- 07:50 AM EDT     -0.71 knots Max Ebb
Mon -- 11:22 AM EDT     0.00 knots Slack
Mon -- 01:48 PM EDT     0.38 knots Max Flood
Mon -- 04:52 PM EDT     -0.00 knots Slack
Mon -- 07:48 PM EDT     -0.47 knots Max Ebb
Mon -- 08:23 PM EDT     Sunset
Mon -- 09:24 PM EDT     Moonset
Mon -- 10:34 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.60.40.2-0.1-0.5-0.7-0.7-0.6-0.4-0.10.20.30.40.30.2-0-0.3-0.4-0.5-0.4-0.20.1

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 (12,3,4,5)
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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.