Monday, December11, 2017 L-36.com


Marine Weather and Tides
French-Rumbly, 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 7:08AMSunset 4:43PM Monday December 11, 2017 4:15 AM EST (09:15 UTC) Moonrise 12:41AMMoonset 1:15PM Illumination 46% Phase: Third Quarter Moon; Moon at 23 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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ANZ543 Tangier Sound And The Inland Waters Surrounding Bloodsworth Island- 331 Am Est Mon Dec 11 2017
.small craft advisory in effect until 7 am est this morning...
.small craft advisory in effect from late tonight through Tuesday afternoon...
Rest of the overnight..W winds 15 kt with gusts to 25 kt. Waves 2 ft.
Today..NW winds 5 to 10 kt...becoming S late. Gusts up to 20 kt in the morning. Waves 1 to 2 ft.
Tonight..S winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
Tue..SW winds 15 to 20 kt...becoming W in the afternoon. Gusts up to 30 kt. Waves 2 ft.
Tue night..NW winds 20 to 25 kt with gusts to 35 kt. Waves 3 ft.
Wed..W winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft.
Wed night..W winds 15 to 20 kt with gusts to 30 kt...diminishing to 5 to 10 kt with gusts to 20 kt after midnight. Waves 1 to 2 ft.
Thu..NW winds 5 to 10 kt. Waves 1 ft.
Fri..NW winds 10 to 15 kt. Waves 1 to 2 ft...building to 3 ft. A chance of rain or snow in the morning, then a chance of rain in the afternoon.
ANZ500 331 Am Est Mon Dec 11 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will over the waters today and then offshore tonight. An arctic cold front will pass through late Tuesday and high pressure will return for Wednesday. Weak low pressure will pass through the waters Thursday and another weak low will pass by to the east Friday. A gale warning may be needed for portions of the waters Tuesday night and Wednesday. A small craft advisory may be needed for portions of the waters Wednesday night and Thursday.

7 Day Forecast for Marine Location Near French-Rumbly, MD
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location: 38.05, -75.8     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 110835
afdakq
area forecast discussion
national weather service wakefield va
335 am est Mon dec 11 2017

Synopsis
High pressure builds over the gulf coast region through Monday
night, as low pressure moves through the northern tier of the
nation. A more prominent low pressure system will move from the
great lakes into new england Tuesday through Tuesday night,
pushing a strong cold front through the local area. Expect
markedly colder temperatures for Tuesday night and Wednesday.

Near term through tonight
Latest surface analysis reveals a broad area of high pressure
(~1030 mb) centered from the western gulf coast across the deep
south. To the north, low pressure genly prevails across the
adirondack mtns, with the associated surface front extending
back into the ohio valley. To the northwest, a shortwave diving
south from southern saskatchewan toward the dakotas, dragging a
strong cold south across the upper midwest western great lakes
today and through the ohio valley tonight.

Ahead of the front, lingering mid to high clouds, associated
with another vort lobe pivoting across the region with the
departing upper trough. Skies again turn mainly sunny behind
this feature this morning. Temperatures do moderate slightly,
with milder highs today into the mid-upper 40s most areas to
lower 50s SE coast.

After a clear start, sky will become partly to mostly cloudy
late Mon night ahead of the approaching front to the west.

Veering low-level flow to the s-sw should bring a slightly
milder night with early morning lows in the low to mid 30s.

Short term Tuesday through Wednesday
Day begins with potent upper shortwave pinwheeling across the
interior northeast, with the strong cold front pushing across
the area from late morning through early evening Tuesday. Should
be enough pre-frontal SW flow Tue to bring one last relatively
mild day Tuesday, with highs into the mid- upper 50s SE to the
upper 40s nw. Turning blustery and dry late in the day from nw
to se. Wind gusts to 20 to 30 mph Tuesday afternoon... Gusting to
30 to 40 mph Tuesday night.

Temperatures quickly tumble into the 20s 30s early Tuesday
night, with early morning lows in the teens NW to 20s elsewhere
Wednesday morning under a clearing sky. Brisk NW winds will
quickly knock wind chills down into the 10-20 f range wed
morning. Even with mainly sunny skies wed, highs will struggle
to get above the lower 30s N and mid 30s s... With wind chills
remaining in the 20s or colder.

Long term Wednesday night through Sunday
A progressive wnw flow pattern is expected for the latter half
of this week through next weekend, featuring a series of nrn
stream (moisture-starved) clipper systems. The first wave
pushes through during the Wednesday night Thursday timeframe.

The 10 12z ECMWF is about 12hrs quicker than the gfs, but
regardless pops are less than 15% with limited moisture and
downslope flow. Another wave quickly follows Friday. The GFS is
more NRN stream dominated while the ECMWF pushes a SRN stream
wave off the southeast coast. Again, there is little support for
pcpn locally, so forecast pops are less than 15%. Shortwave
ridging prevails Saturday with another quick moving trough
pushing through the region Sunday. High temperatures Thursday-
Saturday will generally be in the 40s to around 50f se, then
low mid 50s by Sunday as the aforementioned trough will provide
mixing with limited caa. Low temperatures will primarily be in
the 20s for much of the area to low 30s SE later this week, and
then rise to the upper 20s mid 30s (upper 30s around 40f far se)
by the weekend.

Aviation 08z Monday through Friday
Vfr conditions expected through the 06z TAF period. Sct bkn mid
to high level clouds will push across northern sections of the
area during the overnight, clearing towards morning. Winds will
be 10 kt or less from the sw-w tonight and Monday.

Outlook: expectVFR conditions to prevail for the most part
through the week, though winds are expected to become strong and
gusty later Tue and Tue night into Wed with the passage of a
strong cold front.

Marine
Ended the SCA hazards over the ocean with this forecast package as
seas have dropped below 5 ft. Sfc high pressure builds over the se
states tonight, and with a slight increase in the pressure gradient,
have hoisted a marginal SCA for the bay for a short period of 15-20
kt winds. Sub-sca conditions then into the day Mon as a clipper
system approaches the oh valley. This system will drag a strong cold
front through the waters on tue, with SCA conditions expected over
much of the marine area lasting from Tue through wed. Low-end gales
are psbl by Tue night, esply over the coastal wtrs.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... Small craft advisory until 7 am est this morning for
anz630>632-634.

Synopsis... Lkb
near term... Ajz lkb
short term... Lkb mam
long term... Ajz
aviation... Mam jef
marine... Mas


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BISM2 - 8571421 - Bishops Head, MD 17 mi46 min W 12 G 16 40°F 39°F1017.7 hPa
44042 - Potomac, MD 28 mi36 min WSW 12 G 16 39°F 1016.6 hPa
WAHV2 - 8631044 - Wachapreague, VA 31 mi46 min SW 1 G 1.9 36°F 43°F1017.7 hPa
44089 32 mi46 min 53°F3 ft
LWTV2 - 8635750 - Lewisetta, VA 35 mi46 min WSW 7 G 8 37°F 44°F1017.2 hPa
RPLV2 - 8632837 - Rappahannock Light, VA 37 mi46 min SW 18 G 21 1017.9 hPa
PPTM2 - 8578240 - Piney Point, MD 39 mi46 min WNW 6 G 8
SLIM2 - 8577330 - Solomons Island, MD 39 mi46 min WNW 5.1 G 7 38°F 48°F1017.2 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 39 mi46 min WNW 7 G 9.9 37°F 1018 hPa
CA2 - 8571892 - Cambridge, MD 39 mi46 min 36°F 45°F1018.3 hPa
44058 - Stingray Point, VA 41 mi36 min W 9.7 G 14 39°F 1017.6 hPa
OCIM2 - 8570283 - Ocean City Inlet, MD 42 mi46 min W 7 G 8.9 38°F 48°F1017.7 hPa
44062 - Gooses Reef, MD 48 mi36 min W 3.9 G 5.8 38°F 1017.7 hPa

Wind History for Bishops Head, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wallops Flight Facility Airport, VA19 mi22 minSSW 510.00 miFair34°F30°F85%1017.4 hPa

Wind History from WAL (wind in knots)
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Last 24hrW6W7W4NW6W5W6W5W6NW9W9W7W6CalmW3SW4SW3SW5S6SW6SW5S5SW6SW4S5
1 day agoN11N10
G16
N13N8N8N13N16
G24
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N9N9
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N8NW9NW8NW8NW7NW7NW7NW7NW7NW6W7W8W6
2 days agoN7N5N5N5N5N6N4N7NW6N5N7N5N6N8NE4N5N6N7N7N10N9N10N9N8

Tide / Current Tables for Long Point, Big Annemessex River, Chesapeake Bay, Maryland
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Long Point
Click for Map
Mon -- 12:40 AM EST     Moonrise
Mon -- 02:05 AM EST     -0.05 feet Low Tide
Mon -- 07:09 AM EST     Sunrise
Mon -- 08:03 AM EST     2.00 feet High Tide
Mon -- 01:14 PM EST     Moonset
Mon -- 02:38 PM EST     0.15 feet Low Tide
Mon -- 04:43 PM EST     Sunset
Mon -- 08:18 PM EST     1.91 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.1-0.10.10.411.51.921.91.71.30.80.40.20.20.40.81.31.71.91.91.71.3

Tide / Current Tables for Salisbury, Maryland (2 miles below) Current
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Salisbury
Click for Map
Mon -- 12:39 AM EST     Moonrise
Mon -- 12:51 AM EST     -0.82 knots Max Ebb
Mon -- 04:12 AM EST     0.00 knots Slack
Mon -- 07:02 AM EST     0.57 knots Max Flood
Mon -- 07:09 AM EST     Sunrise
Mon -- 10:11 AM EST     -0.00 knots Slack
Mon -- 01:14 PM EST     Moonset
Mon -- 01:27 PM EST     -0.74 knots Max Ebb
Mon -- 04:42 PM EST     Sunset
Mon -- 04:48 PM EST     0.00 knots Slack
Mon -- 07:34 PM EST     0.44 knots Max Flood
Mon -- 10:26 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.8-0.8-0.7-0.4-0.10.30.50.60.50.40.1-0.3-0.6-0.7-0.7-0.6-0.30.10.30.40.40.30.1-0.2

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 (4,6,7,8)
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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.