Monday, January22, 2018 L-36.com


Marine Weather and Tides
King George, VA

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 7:20AMSunset 5:23PM Monday January 22, 2018 2:56 PM EST (19:56 UTC) Moonrise 10:31AMMoonset 10:48PM Illumination 35% 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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ANZ536 Tidal Potomac From Indian Head To Cobb Island- 1231 Pm Est Mon Jan 22 2018
.small craft advisory in effect from late tonight through Tuesday afternoon...
This afternoon..S winds 10 kt. Waves 1 ft.
Tonight..S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft. Widespread showers.
Tue..SW winds 15 kt...becoming W late. Gusts up to 25 kt. Waves 2 ft. Widespread showers with a chance of tstms.
Tue night..W winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 1 ft.
Wed..NW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Wed night..NW winds 5 to 10 kt. Waves 1 ft.
Thu..N winds 5 to 10 kt. Waves 1 ft or less.
Fri..S winds around 5 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1231 Pm Est Mon Jan 22 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain off the southeast coast today. A cold front will approach the area tonight and cross the area Tuesday. This will be followed by another area of high pressure for the second half of the week. Small craft advisories will likely be needed Tuesday night through Thursday, with gales possible Tuesday with the frontal passage.

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 221948
afdlwx
area forecast discussion
national weather service baltimore md washington dc
248 pm est Mon jan 22 2018

Synopsis A cold front will cross the area on Tuesday. High
pressure then builds over the area Tuesday night through Friday
morning then shifts offshore this weekend as another frontal
system approaches from the west.

Near term through Tuesday Heights will begin to fall
quickly tonight as mid-level closed low over the middle of the
country lifts newd into the great lks region. As a result,
strengthening warm and moisture advective pattern will result in
a sig increase in showers late tonight into Tue morning. Models
are showing strong forcing (200-meter 12 hr height falls) over
the area with pwats rising to around to 1.5 inches or 250 to 400%
of normal. In addition, wind fields will also strengthen with
models showing 850 mb and 500 mb winds of 50kt and 80 kt
respectively. With the substantial increase in winds and
moisture, there will be potential for t-storms late tonight into
tue morning (09z-15z time frame). Stability indices and the
shrb (high shear low CAPE parameter) suggest potential for
severe t-storms given up to 500 j kg of CAPE and strong wind
fields just above the surface with a line of showers
accompanying sfc cdfnt. Biggest threat for severe t-storms is
east of the u.S. Route 15 corridor in the 09-15z time frame.

Cdfnt will push east of the ches bay by 18z with showers ending,
but over the appalachians the showers will continue and turn
into snow showers.

Short term Tuesday night through Wednesday night
Turning colder Tue night under CAA pattern. Snow showers will
continue over the mtns with a few inches of accumulation
possible.

Long term Thursday through Monday
Dry conditions with near normal temperatures are expected for
Thursday and Friday as high pressure moves south or near our
area. Flow will change from northerly to southerly as the high
pressure moves offshore on Friday. Warm air advection will allow
temperatures to become above normal, especially for Saturday -
maybe Sunday- with some areas reaching the 50s.

Guidance suggests that a cold front will move through sometime late
Saturday or Sunday. Timing of the frontal passage and amount of qpf
is still uncertain but trending more into a Sunday event. Showers
associated to this could begin Saturday night. Behind the front, dry
conditions and cooler temperatures expected, with temperatures
dropping to near normal.

Aviation 19z Monday through Saturday
Developing ifr lifr conditions mainly 06z-15z Tue with showers
with a slight chance of tsra. Llws also a possibility 06-12z.

Cdfnt pushes east of terminals after 15z with winds shifting and
showers ending.

Vfr conditions expected between Thursday and Saturday with high
pressure moving south or near our area.

Marine Winds will strengthen tonight into Tue morning with
sca conditions. Showers or t-storms Tue morning may be capable
of producing brief strong convective gusts in excess of 33 kt
which may require smws. SCA conditions will likely persist
through wed.

Wind gusts could reach small craft advisory criteria on
Thursday before decreasing into Friday. Breezy conditions return
on Saturday with the cold front.

Lwx watches warnings advisories
Dc... None.

Md... None.

Va... None.

Wv... None.

Marine... Small craft advisory from 1 am to 6 pm est Tuesday for
anz530>532-535-536-538>541.

Small craft advisory from 7 pm this evening to 6 pm est
Tuesday for anz533-534-537-542-543.

Synopsis... Lfr
near term... Lfr
short term... Lfr
long term... Imr
aviation... Imr lfr
marine... Imr lfr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NCDV2 9 mi39 min S 9.9 G 14 65°F 38°F1017 hPa
PPTM2 - 8578240 - Piney Point, MD 35 mi39 min SE 6 G 7
SLIM2 - 8577330 - Solomons Island, MD 39 mi45 min E 8 G 8.9 46°F 35°F1018.4 hPa
LWTV2 - 8635750 - Lewisetta, VA 42 mi39 min SSW 9.9 G 12 61°F 1018.7 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 44 mi39 min S 13 G 14 40°F 1019.5 hPa
WASD2 - 8594900 - Washington, DC 45 mi39 min S 6 G 8 58°F 34°F1017.6 hPa
BSLM2 - Chesapeake Bay, MD 45 mi147 min SSW 7 64°F 1019 hPa43°F

Wind History for Piney Point, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fredericksburg, Shannon Airport, VA14 mi62 minS 1010.00 miFair67°F44°F44%1017.9 hPa
Stafford, Stafford Regional Airport, VA18 mi82 minSSW 10 G 1610.00 miFair67°F41°F40%1019.6 hPa
Quantico Marine Corps Airfield - Turner Field, VA20 mi2 hrsSSW 710.00 miOvercast53°F42°F66%1019 hPa

Wind History from EZF (wind in knots)
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Last 24hrSE6S10S6S7S6S6S7S4S3S5S7SW6S8
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S6S5CalmSE3S3S6S7S7SW10
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1 day agoSW7
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SW7SW5S3SW5CalmCalmCalmCalmCalmNW3CalmCalmCalmCalmCalmCalmCalmE3E3CalmW3SE6SE9
2 days agoSW6SW7SW7SW4S3SW3SW4CalmCalmCalmCalmCalmCalmSE3CalmCalmCalmCalmCalmSW10
G15
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Tide / Current Tables for Hopyard Landing, Rappahannock River, Virginia
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Hopyard Landing
Click for Map
Mon -- 04:06 AM EST     -0.14 feet Low Tide
Mon -- 07:21 AM EST     Sunrise
Mon -- 09:51 AM EST     1.97 feet High Tide
Mon -- 10:31 AM EST     Moonrise
Mon -- 04:26 PM EST     -0.05 feet Low Tide
Mon -- 05:20 PM EST     Sunset
Mon -- 10:12 PM EST     1.98 feet High Tide
Mon -- 10:48 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.80.3-0-0.1-0.10.30.91.51.921.81.40.90.50.2-0-00.20.71.31.821.9

Tide / Current Tables for Corbins Neck, Rappahannock River, Virginia
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Corbins Neck
Click for Map
Mon -- 04:37 AM EST     -0.12 feet Low Tide
Mon -- 07:21 AM EST     Sunrise
Mon -- 09:56 AM EST     2.47 feet High Tide
Mon -- 10:31 AM EST     Moonrise
Mon -- 04:58 PM EST     -0.01 feet Low Tide
Mon -- 05:20 PM EST     Sunset
Mon -- 10:19 PM EST     2.47 feet High Tide
Mon -- 10:49 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.71.20.60.2-0.1-0.10.20.81.72.32.52.31.91.40.80.40.1-00.10.61.42.12.52.4

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 (14,3,4,5)
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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 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.