Monday, March27, 2017 L-36.com


Marine Weather and Tides
St. George Island, MD

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:57AMSunset 7:28PM Monday March 27, 2017 12:26 PM EDT (16:26 UTC) Moonrise 5:52AMMoonset 6:05PM Illumination 0% Phase: New Moon; Moon at 0 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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ANZ537 Tidal Potomac From Cobb Island To Smith Point- 1117 Am Edt Mon Mar 27 2017
.small craft advisory in effect until 6 pm edt this evening...
Rest of today..S winds 10 kt with gusts to 20 kt. Waves 1 to 2 ft. Isolated showers late this morning...then isolated showers and tstms this afternoon.
Tonight..S winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers.
Tue..SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely.
Tue night..SW winds 10 to 15 kt...becoming nw after midnight. Gusts up to 20 kt. Waves 1 to 2 ft. A chance of showers.
Wed..N winds 10 kt with gusts to 25 kt. Waves 2 to 3 ft.
Wed night..N winds 5 to 10 kt with gusts to 20 kt. Waves 2 ft.
Thu..SE winds 5 to 10 kt. Waves 1 to 2 ft. A chance of showers through the night.
Fri..SE winds 10 to 15 kt...becoming S 5 to 10 kt after midnight. Waves 2 to 3 ft...subsiding to 1 ft after midnight. Showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1117 Am Edt Mon Mar 27 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A warm front will push through the mid atlantic this morning. A cold front is expected to cross the chesapeake bay region Tuesday night. High pressure will build across the waters for midweek, followed by a low pressure system moving towards the region on Friday. Small craft advisories are possible Tuesday night and Wednesday behind the cold front, and again on Friday.

7 Day Forecast for Marine Location Near St. George Island, MD
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location: 38.04, -76.5     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 271525
afdakq
area forecast discussion
national weather service wakefield va
1125 am edt Mon mar 27 2017

Synopsis
A weak frontal boundary lifts north of the local area early
this afternoon. A cold front approaches from the west tonight
and crosses the region late Tuesday through Tuesday night. High
pressure builds in from the north on Wednesday.

Near term /until 6 pm this evening/
Late morning analysis indicating that the sfc boundary is
washing out over the area, with some weak low level convergence
remaining over mainly far northern portions of the cwa. Still
enough mid-upper level energy keeping widely scattered light
showers ongoing over interior southeast and eastern va, though
area obs generally showing rainfall amounts to be a trace to a
few hundredths so will continue to keep pops only in the 20-40%
range through early aftn. Fog has finally lifted across the
northern piedmont areas and winds now avg around 10 kt from the
ssw most locations.

Currently mostly cloudy except for more Sun near coastal
northeast nc. Area 12z soundings show fairly abundant low level
moisture and already seeing cumulus developing in the piedmont
where the showers have ended. Expect some sunshine this aftn,
but overall sky conditions will tend to be more bkn rather than
sct. All zones will be in the warm sector. Aside from locally
cooler readings at the immediate coast... Most areas will rise
into the mid to upper 70s. Not much forcing for widespread
precip after this initial area of showers dissipates near the
coast after 18z, but will carry 20% pops for late day showers
(tstms well inland) given the decent amount of moisture and ml
capes rising to 500-1000 j/kg. Shear is minimal and lapse rates
are quite weak so even if some convection does develop, expect
any storms to be weak/short-lived.

Short term /6 pm this evening through Wednesday/
Upper level ridging begins to break down tonight... And after a
period of mainly dry conditions, pops will ramp back up after
04-06z as the front approaches from the w. Will carry ~40% chc
pops west of i-95 after midnight to 20% to 30% or less farther
east and southeast. Warm with lows mainly 55-60 f. Upper level
trough pushes into the area Tue as a sfc cold front arrives
late in the day. Continued warm w/ highs well into the 70s to
near 80f. There will be a higher chance for showers and aftn
tstms. Will continue with 40-50% pops most areas. There will be
some potential for a few stronger storms Tue aftn/evening as
speed and directional shear increases and sfc dew pts will be
around 60f. Overall not looking like widespread severe wx as
there is still some question as to how much storm organization
there will be as latest models are hinting at a lot of clouds
and an earlier arrival of precip by late morning. SPC has area
in marginal risk for severe wx and this seems about right given
the current parameters depicted in the models.

Will linger the chance pops through the early evening W and to
around midnight along the coast. Drying after midnight with
lows mainly 50-55 f. Becoming partly/mostly sunny Wed as drier
air moves in from the n. Somewhat cooler but still a little
above avg with highs 60-65f near the coast and in the upper 60s
to lower 70s well inland.

Long term /Wednesday night through Sunday/
Dry wx expected for Wed night thru thu, as high pressure builds
down over the area to along the east coast. Decent chc for
showers and possible tstms later Thu night into early sat
morning, as low pressure and another associated cold front
approaches and moves acrs the region. Dry wx and high pressure
returns for Sat aftn thru sun.

Highs in the mid 50s to lower 60s thu, in the upper 50s to mid
60s fri, and in the 60s to near 70 Sat and sun. Lows in the
upper 30s to mid 40s Wed night, in the lower to mid 40s thu
night, in the mid 40s to lower 50s Fri night, and in the 40s sat
night.

Aviation /15z Monday through Friday/
Conditions have becomeVFR INVOF sby past couple of hours.

Narrow area of -shras moving e... Approaching I 95 (and ric)
attm... And have added tempo -shra to ric until about 14z/27.

Expecting mainlyVFR conditions for midday/afternoon hours w/
low prob for shras. Unsettled wx conditions will persist across
the region into Tue night. Shras becoming increasingly likely
during tue... Into Tue night. Periods of reduced aviation
conditions will be possible during times of precipitation.

Dry/vfr Wed as winds shift to the n.

Marine
Low visibility in fog (<1 nm) continues to plague the northern
coastal waters and the upper bay early this morning. Based on trends
in the latest obs will continue the dense fog advisory north of
windmill pt thru 7 am and also for the coastal waters north of
parramore island.

A frontal boundary remains draped across the DELMARVA early this
morning with reduced visibility in light onshore e/ne flow. South of
the boundary winds are S at 10 kt or less. The frontal boundary will
eventually get pulled back north of the DELMARVA later this morning
with improving visibility across the northern waters... And winds
becoming S 5 to 15 kt all areas for the rest of today as sfc high
pressure lingers off the SE coast. Winds S to SW 10 to 15 kt
continues tonight and Tue morning. Seas 2-4 ft; waves 1-2 ft.

Low pressure and its associated cold front will across the local
area late Tue into early Wed morning. Winds s/sw 10-15 kt Tue aftn
will become w/nw 10-15 kt Tue night then n-ne 10-15 kt on wed. Do
not expect SCA conditions to be met thru wed.

High pressure will build in from the N for Wed night and Thu with
ne winds 15 kt or less, becoming E by late thu. Seas 2-4 ft; waves
1-3 ft thru the period.

Akq watches/warnings/advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Lkb
near term... Lkb
short term... Alb/lkb
long term... Tmg
aviation... Alb
marine... Jdm


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LWTV2 - 8635750 - Lewisetta, VA 4 mi38 min SW 8.9 G 12 65°F 51°F1018 hPa
PPTM2 - 8578240 - Piney Point, MD 7 mi38 min WSW 8.9 G 11
44042 - Potomac, MD 9 mi26 min SSW 3.9 G 5.8 55°F 47°F1 ft1017.5 hPa (-1.1)
SLIM2 - 8577330 - Solomons Island, MD 20 mi38 min SW 14 G 19
COVM2 - 8577018 - Cove Point LNG Pier, MD 26 mi38 min WSW 12 G 17 61°F 1018.5 hPa
BISM2 - 8571421 - Bishops Head, MD 27 mi38 min S 12 G 14 56°F 53°F1018.8 hPa
NCDV2 34 mi38 min SE 2.9 G 4.1 55°F 51°F1017.4 hPa
44058 - Stingray Point, VA 35 mi26 min SSW 5.8 G 7.8 55°F 48°F1019.8 hPa (-1.0)
44062 - Gooses Reef, MD 36 mi26 min E 3.9 G 3.9 49°F 47°F1018.8 hPa (-0.8)
RPLV2 - 8632837 - Rappahannock Light, VA 43 mi38 min S 17 G 17 1019.8 hPa
CA2 - 8571892 - Cambridge, MD 43 mi38 min SSW 8 G 13 65°F 46°F1017.3 hPa
YRSV2 - Chesapeake Bay,VA 45 mi56 min SW 2.9 69°F 1020 hPa58°F

Wind History for Lewisetta, VA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Inigoes, Webster Field, Naval Electronic Systems Engineering Activity, MD8 mi33 minSSW 910.00 miMostly Cloudy67°F57°F71%1017.8 hPa
Patuxent River, Naval Air Station, MD18 mi34 minSSW 15 G 2110.00 miMostly Cloudy68°F57°F70%1017.7 hPa
St Marys County Airport, MD19 mi45 minSSW 10 G 1610.00 miPartly Cloudy66°F55°F68%1018.3 hPa
Tappahannock-Essex County Airport, VA24 mi31 minSSE 6 G 1710.00 miFair69°F52°F57%1019 hPa

Wind History from NUI (wind in knots)
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Last 24hrNE9E7NE6NE10NE13NE10NE8NE7E8E7E5NE5E3NE4E3SE5E4SE5S5S5S5S9S7S9
1 day agoSW7SW7SW6SW5SE4E5NE3CalmSE4S4CalmCalmNE12
G16
NE12NE9NE11NE11NE8NE8NE8NE8NE9NE12NE8
2 days agoS8S7SW11SW8SW10S10SW12SW12S10SW9SW6SW5SW8S9S8S8S7SW6S5S7SW6SW8SW7SW8

Tide / Current Tables for Lynch Point, Yeocomico River, Virginia
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Lynch Point
Click for Map
Mon -- 02:02 AM EDT     1.52 feet High Tide
Mon -- 06:51 AM EDT     Moonrise
Mon -- 06:58 AM EDT     Sunrise
Mon -- 08:32 AM EDT     0.02 feet Low Tide
Mon -- 02:27 PM EDT     1.49 feet High Tide
Mon -- 07:05 PM EDT     Moonset
Mon -- 07:24 PM EDT     Sunset
Mon -- 08:49 PM EDT     0.03 feet Low Tide
Mon -- 10:59 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.41.51.41.10.80.50.20.100.20.611.31.51.51.20.90.60.30.100.20.5

Tide / Current Tables for Point Patience, 0.1 mile southwest of, Maryland Current
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Point Patience
Click for MapFlood direction 315 true
Ebb direction 145 true

Mon -- 01:54 AM EDT     -0.00 knots Slack
Mon -- 05:44 AM EDT     -0.88 knots Max Ebb
Mon -- 06:51 AM EDT     Moonrise
Mon -- 06:58 AM EDT     Sunrise
Mon -- 09:44 AM EDT     0.00 knots Slack
Mon -- 11:42 AM EDT     0.52 knots Max Flood
Mon -- 02:10 PM EDT     -0.00 knots Slack
Mon -- 06:00 PM EDT     -0.88 knots Max Ebb
Mon -- 07:05 PM EDT     Moonset
Mon -- 07:24 PM EDT     Sunset
Mon -- 09:55 PM EDT     0.00 knots Slack
Mon -- 10:59 PM EDT     New Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.3-0-0.4-0.7-0.8-0.9-0.8-0.6-0.30.10.40.50.40.1-0.3-0.6-0.8-0.9-0.8-0.6-0.300.4

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 Wakefield, VA (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.