Saturday, April4, 2020
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Marine Weather and Tides
King George, 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 6:47AMSunset 7:37PM Saturday April 4, 2020 11:35 AM EDT (15:35 UTC) Moonrise 2:34PMMoonset 3:58AM Illumination 88% Phase: Waxing Gibbous; Moon at 11 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- 1037 Am Edt Sat Apr 4 2020
Rest of today..N winds 5 kt. Waves less than 1 ft. Isolated sprinkles late this morning.
Tonight..S winds 5 kt. Waves less than 1 ft.
Sun..SW winds 5 kt. Waves less than 1 ft.
Sun night..W winds around 5 kt. Waves 1 ft.
Mon..N winds around 5 kt. Waves 1 ft.
Mon night..S winds 5 kt. Waves less than 1 ft.
Tue..SW winds around 5 kt. Waves 1 ft. A chance of showers.
Wed..NW winds 5 to 10 kt. Waves 1 ft. A chance of showers.
ANZ500 1037 Am Edt Sat Apr 4 2020
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Weak high pressure will build in from the ohio valley through Sunday morning. A weak cold front will move in Sunday night before becoming diffuse on Monday. A low pressure system will approach from the midwest on Wednesday. Small craft advisory may be needed for the second half of the week.


7 Day Forecast for Marine Location Near King George, VA
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location: 38.24, -77.18     debug


Area Discussion for - Baltimore, MD/Washington
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FXUS61 KLWX 041428 AFDLWX

Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 1028 AM EDT Sat Apr 4 2020

SYNOPSIS. Weak high pressure will build in from the Ohio Valley through Sunday morning. A weak cold front will move in Sunday night before becoming diffuse on Monday. A low pressure system will approach from the midwest on Wednesday.

NEAR TERM /THROUGH TONIGHT/. A mid-level circulation has moved south of our area and the showers it brought over the eastern portion of our CWA earlier this morning have dissipated. Clouds continue to increase over our region with ceilings lowering over some locations. It will be about 5 degs cooler than yesterday with highs around 60 or lower 60s.

We'll gradually lose the low clouds overnight, but high clouds will start arriving at the same time. Overall, mostly cloudy skies expected tonight. Lows will be in the mid 40s.

SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/. Few-sct showers are possible Sunday into Sun evening as weak cold front approaches from the west and eventually crosses the area. The front is expected to push south of the area late Sun night and then become diffuse Monday. It should be on the warm side with ridge axis overhead. Showers may enter the fcst area again late Monday night and Tue as a weak area of low pressure forms along a developing frontal zone attached to low pressure over the upper Midwest.

LONG TERM /TUESDAY THROUGH FRIDAY/. The subtropical jet is forecast to move northward into the mid- Atlantic region on Tuesday while a weaker upper level jet drops southward from the Great Lakes region. This will lead to upper level ridging over the central plains and parts of the midwestern US through Wednesday. Shortwaves are forecast to move along this ridge and down into our region on Wednesday. A surface low associated with these disturbances will move to our north bringing a chance for showers Tuesday and Wednesday. Precipitation will likely be limited by the lack of good forcing and a general westerly flow transporting in a drier downsloping air. Temperatures during this period should slowly trend upwards into the 70s with overnight lows in the 40s and 50s.

A strong upper level low is forecast to drop southward into the central US from the Canada on Thursday. A surface low associated with this upper level low will move through the Great Lakes region and eastern Canada. A cold front will approach and move through our region on Thursday bringing another chance for rain to our region. There remains some uncertainty on the strength and timing of an upper level jet which could help influence the location and amount of precipitation that our region receives. The front should be through our area by Friday morning but the low to our north is forecast to occlude west over the NE US which could bring a back end chance for showers again on Friday. Behind the frontal passage, high pressure builds over our region on Friday along with a cooler air mass which could bring a spring chill to our area.

AVIATION /14Z SATURDAY THROUGH WEDNESDAY/. Increasing clouds today with lowering cigs but still VFR. Low clouds start lifting tonight. Few showers are expected Sun with a frontal passage expected Sunday evening along with shifting winds. Front becomes diffuse Monday. No sig wx Mon and Tue.

Showers will be possible Tuesday and Wednesday. Winds will be mainly out of the west with periods of variable winds. VFR conditions expected at this time for Tuesday and Wednesday. More widespread rain expected Thursday which may lead to subVFR conditions.

MARINE. Winds will gradually diminish through early this afternoon, then light and variable winds tonight through at least the middle of next week. No hazards expected.

TIDES/COASTAL FLOODING. Water levels are expected to rise today into Sunday morning with potential for moderate coastal flooding at Straits Point and possibly Annapolis beginning tonight and continuing through Sun night. Advisories may also be needed for today. At the very least, will likely be issuing a Coastal Flood Watch for St. Mary's County before the end of my shift valid for tonight through Sunday evening.

LWX WATCHES/WARNINGS/ADVISORIES. DC . None. MD . Coastal Flood Watch from late tonight through Sunday afternoon for MDZ014. Coastal Flood Watch from 10 PM EDT this evening through Sunday afternoon for MDZ017. VA . None. WV . None. MARINE . None.

SYNOPSIS . LFR NEAR TERM . IMR/LFR SHORT TERM . LFR LONG TERM . JMG AVIATION . LFR/JMG MARINE . LFR/JMG TIDES/COASTAL FLOODING .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCDV2 9 mi66 min NNW 1.9 G 7 55°F 55°F1016.1 hPa
PPTM2 - 8578240 - Piney Point, MD 35 mi66 min N 11 G 13
SLIM2 - 8577330 - Solomons Island, MD 39 mi66 min N 8.9 G 14 52°F 53°F1016.1 hPa
LWTV2 - 8635750 - Lewisetta, VA 42 mi66 min NNE 7 G 12 54°F 53°F1016.3 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 44 mi66 min NNW 12 G 15 1016.7 hPa
BSLM2 - Chesapeake Bay, MD 45 mi126 min N 4.1 1015 hPa
WASD2 - 8594900 - Washington, DC 45 mi66 min N 2.9 G 7 55°F 55°F1017.2 hPa
44062 - Gooses Reef, MD 46 mi48 min N 12 G 14 51°F 971.4 hPa
44042 - Potomac, MD 47 mi36 min N 25 G 31 51°F 1 ft1016.6 hPa (+2.1)

Wind History for Piney Point, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fredericksburg, Shannon Airport, VA14 mi41 minN 310.00 miOvercast55°F43°F66%1017.3 hPa
Stafford, Stafford Regional Airport, VA18 mi41 minNW 810.00 miOvercast55°F42°F62%1018.6 hPa
Quantico Marine Corps Airfield - Turner Field, VA20 mi4.7 hrsNW 810.00 miOvercast48°F0°F%1015.3 hPa

Link to 5 minute data for KEZF

Wind History from EZF (wind in knots)
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N4NW3CalmNW6NW3NW4NW5CalmNW4N6N4NW6
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Tide / Current Tables for Hopyard Landing, Rappahannock River, Virginia
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Hopyard Landing
Click for Map
Sat -- 03:58 AM EDT     2.21 feet High Tide
Sat -- 04:58 AM EDT     Moonset
Sat -- 06:48 AM EDT     Sunrise
Sat -- 10:27 AM EDT     0.27 feet Low Tide
Sat -- 03:34 PM EDT     Moonrise
Sat -- 04:18 PM EDT     2.36 feet High Tide
Sat -- 07:35 PM EDT     Sunset
Sat -- 11:11 PM EDT     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.71.31.82.12.22.11.71.20.80.50.30.30.61.11.72.22.32.321.510.60.40.2

Tide / Current Tables for Corbins Neck, Rappahannock River, Virginia
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Corbins Neck
Click for Map
Sat -- 04:05 AM EDT     2.80 feet High Tide
Sat -- 04:58 AM EDT     Moonset
Sat -- 06:48 AM EDT     Sunrise
Sat -- 10:58 AM EDT     0.33 feet Low Tide
Sat -- 03:34 PM EDT     Moonrise
Sat -- 04:25 PM EDT     2.98 feet High Tide
Sat -- 07:35 PM EDT     Sunset
Sat -- 11:42 PM EDT     0.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.71.42.12.62.82.72.21.71.20.70.40.30.51.122.62.92.92.621.510.60.3

Weather Map
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wmap_A
GEOS 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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Baltimore, MD/Washington (11,2,3,4)
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Ground Weather Radar Station Sterling, VA
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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 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.