Thursday, July2, 2020
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Marine Weather and Tides
Fairview Beach, VA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:49AMSunset 8:38PM Thursday July 2, 2020 6:05 AM EDT (10:05 UTC) Moonrise 5:18PMMoonset 2:31AM Illumination 89% Phase: Waxing Gibbous; Moon at 12 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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ANZ536 Tidal Potomac From Indian Head To Cobb Island- 436 Am Edt Thu Jul 2 2020
Rest of the overnight..NW winds 5 kt. Waves less than 1 ft.
Today..N winds 5 kt. Waves less than 1 ft.
Tonight..W winds 5 kt. Waves less than 1 ft.
Fri..NW winds 5 kt. Waves less than 1 ft.
Fri night..NW winds 5 kt. Waves less than 1 ft.
Sat..NE winds 5 kt. Waves less than 1 ft.
Sat night..E winds 5 kt. Waves less than 1 ft.
Sun..S winds 5 kt. Waves less than 1 ft. A chance of showers and tstms.
Mon..S winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 436 Am Edt Thu Jul 2 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. An upper level trough will push off to our southeast overnight as high pressure sits atop the great lakes promoting light and variable winds. A weak backdoor cold front will approach the waters from new england this weekend.


7 Day Forecast for Marine Location Near Fairview Beach, VA
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location: 38.36, -77.25     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 020801 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 401 AM EDT Thu Jul 2 2020

SYNOPSIS.

Upper level trough offshore will continue to pull away from the area today and tonight. A weak backdoor cold front will enter the area Saturday night before dissipating early next week.

NEAR TERM /THROUGH FRIDAY NIGHT/.

Departing upper level trough and building upper ridge from the Great Lks will result in upper level convergence/height rises over the area today through Friday. This will lead to a warming and drying trend with little or no chance of any convection except for a slight chance of a t-storm in Harford County Fri afternoon as backdoor front pushes southwest through southern NJ and southeastern PA.

Temperatures today should hit 90 with mid-upper 90s on Fri as 850 mb temps soar to near 22C. Dewpoints will be on the decrease as dry air aloft mixes down on light northerly winds. Still hot nonetheless with heat indices in the mid 90s.

SHORT TERM /INDEPENDENCE DAY/FOURTH OF JULY/.

Global models indicate some cooling will occur in the sfc to 500 mb layer that may weaken the subsidence inversion enough to allow isolated t-storms to develop. Models show isold convection developing in between the I-81 and I-95 corridors and the northern Chesapeake Bay north of Annapolis. While temps won't be as hot as on Fri, humidity will be on the rise with heat indices similar to Fri. Still no heat advisories are anticipated at this time.

LONG TERM /SUNDAY THROUGH WEDNESDAY/.

A remnant backdoor frontal boundary is expected to stall out on Sunday while oriented from portions of Central Virginia northwestward toward the West Virginia Panhandle. While thunderstorms can't be ruled out anywhere across the forecast area, the highest coverage of storms will likely lie near the boundary across western portions of the forecast area. Temperatures are expected to be slightly lower than preceding days, with highs generally in the upper 80s to near 90. Conditions will once again be humid, with dewpoints in the upper 60s to near 70.

The large scale flow pattern will remain largely unchanged throughout the upcoming week. At the start of the week, troughing will reside over the western US, with ridging over the center of the country, and weak flow aloft locally. Over the course of the week, higher heights aloft will gradually spread eastward as the flow pattern across the CONUS gradually starts to flatten out.

A hot and humid airmass will be in place at the start of the week, and remain in place through the duration of the long term period. Heat will be the main issue next week, with highs expected to soar well into the 90s each day. When combined with dewpoints in the 60s to near 70, heat indices will be in the 90s to near 100 each afternoon. Little relief will be felt at night, with lows in the 70s for most. Chances for diurnal thunderstorm activity will exist within the hot and humid airmass. With weak flow aloft, and no well defined mid-upper level disturbances passing through, terrain and bay breeze circulations could serve as the primary sources of lift leading to the development of afternoon thunderstorms.

AVIATION /07Z THURSDAY THROUGH MONDAY/.

Isolated t-storms Independence Day. A backdoor front Sat night will bring a wind shift to NE winds and perhaps some lower cigs.

Prevailing VFR conditions are expected at the terminals on Sunday and Monday, but temporary drops to sub-VFR conditions may be possible in association with any thunderstorms that form.

MARINE.

Isolated t-storms northern Ches Bay Fri and Sat.

Sub-SCA level winds are expected over the waters on both Sunday and Monday. Higher winds may be possible in association with any thunderstorms that form.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . None. VA . None. WV . None. MARINE . None.

SYNOPSIS . LFR NEAR TERM . LFR SHORT TERM . LFR LONG TERM . KJP AVIATION . LFR/KJP MARINE . LFR/KJP


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCDV2 12 mi66 min NNW 2.9 G 4.1 82°F
WASD2 - 8594900 - Washington, DC 37 mi66 min NW 1.9 G 2.9 82°F
BSLM2 - Chesapeake Bay, MD 41 mi156 min Calm 1010 hPa
PPTM2 - 8578240 - Piney Point, MD 41 mi66 min N 1.9 G 1.9
SLIM2 - 8577330 - Solomons Island, MD 42 mi66 min NNW 4.1 G 4.1 80°F
44062 - Gooses Reef, MD 46 mi30 min N 9.7 G 9.7 76°F 79°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 46 mi66 min WNW 5.1 G 6
LWTV2 - 8635750 - Lewisetta, VA 49 mi66 min WNW 5.1 G 6 82°F

Wind History for Washington, DC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stafford, Stafford Regional Airport, VA11 mi71 minWNW 310.00 miFair67°F67°F100%1012.9 hPa
Quantico Marine Corps Airfield - Turner Field, VA11 mi70 minWNW 69.00 miFair71°F68°F90%1011.6 hPa
Fredericksburg, Shannon Airport, VA12 mi71 minN 010.00 miFair67°F67°F100%1011.2 hPa

Link to 5 minute data for KRMN

Wind History from RMN (wind in knots)
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Last 24hrNW3N6N3CalmNE5NE5CalmCalmNW5NE7E6E9
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1 day agoW3NW12N3N6N5NE6NE6N6N7W7CalmN4N3N3CalmCalmCalmCalmCalmCalmNE5CalmN7Calm
2 days agoNW10N7N11N11N7N6N11
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NW5W4NW7NW8W3CalmCalmNW3CalmNW3NW3CalmNW3CalmNW6

Tide / Current Tables for Maryland Point Light, Maryland
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Maryland Point Light
Click for Map
Thu -- 02:53 AM EDT     1.45 feet High Tide
Thu -- 03:31 AM EDT     Moonset
Thu -- 05:49 AM EDT     Sunrise
Thu -- 09:56 AM EDT     0.05 feet Low Tide
Thu -- 03:30 PM EDT     1.19 feet High Tide
Thu -- 06:18 PM EDT     Moonrise
Thu -- 08:36 PM EDT     Sunset
Thu -- 09:49 PM EDT     0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.21.41.41.31.10.80.60.30.100.20.40.811.21.210.70.50.30.10.10.2

Tide / Current Tables for Aquia Creek, Virginia
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Aquia Creek
Click for Map
Thu -- 03:31 AM EDT     Moonset
Thu -- 04:06 AM EDT     1.63 feet High Tide
Thu -- 05:49 AM EDT     Sunrise
Thu -- 10:45 AM EDT     0.08 feet Low Tide
Thu -- 04:23 PM EDT     1.06 feet High Tide
Thu -- 06:18 PM EDT     Moonrise
Thu -- 08:37 PM EDT     Sunset
Thu -- 10:41 PM EDT     -0.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.91.21.51.61.61.31.10.80.50.20.10.30.50.70.9110.90.70.50.20-0

Weather Map
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wmap_A
GEOS Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (6,6,7,8)
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Ground Weather Radar Station Sterling, VA
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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 numerous 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.