Thursday, August17, 2017 L-36.com


Marine Weather and Tides
Whitehaven, 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 6:18AMSunset 7:54PM Thursday August 17, 2017 9:07 PM EDT (01:07 UTC) Moonrise 12:52AMMoonset 3:32PM Illumination 19% Phase: Waning Crescent; Moon at 25 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- 732 Pm Edt Thu Aug 17 2017
.small craft advisory in effect through late Friday night...
Tonight..S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. A slight chance of tstms. A slight chance of showers this evening, then a chance of showers after midnight.
Fri..S winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft. A chance of showers and tstms.
Fri night..SW winds 10 to 15 kt with gusts to 25 kt...becoming W 5 to 10 kt late. Waves 2 ft. Showers and tstms likely.
Sat..NW winds 5 to 10 kt. Waves 1 ft.
Sat night..SW winds around 5 kt. Waves 1 ft or less.
Sun..W winds around 5 kt. Waves flat.
Sun night..SE winds around 5 kt. Waves flat.
Mon..S winds 5 to 10 kt. Waves 1 ft or less...building to 2 ft.
Tue..SW winds 10 to 15 kt. Waves 2 to 3 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 732 Pm Edt Thu Aug 17 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will approach Friday, then pass through Friday night into early Saturday. High pressure will build to the north and west of the waters while a pressure trough will remain nearby for later Saturday and Sunday. The high pressure will shift offshore early next week.

7 Day Forecast for Marine Location Near Whitehaven, MD
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location: 38.27, -75.79     debug


Area Discussion for - Wakefield, VA
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Fxus61 kakq 172336
afdakq
area forecast discussion
national weather service wakefield va
736 pm edt Thu aug 17 2017

Synopsis
A warm and humid air mass remains in place across the mid-
atlantic states tonight and Friday as the flow continues out of
the south. The next cold front will arrive late on Friday night
and exit the region by Saturday afternoon. High pressure builds
in for Sunday through early next week.

Near term until 6 am Friday morning
A warm and humid airmass is in place across the region this
afternoon. There is a weak convergence boundary across the south
central portion of va into central nc from a lingering boundary
associated with low pressure near bermuda. There is some
convection along this convergence boundary, but most of it is in
nc and will remain out of the region. The remainder of the area
is under the SW flow that is developing ahead of a cold front
that is making its way across the ohio valley. The models show a
swath of moisture streaming northward out of the nc mountains
with some associated convection that may impact the region this
evening into the overnight hours. The models, both the 12z gfs
and NAM take the energy associated with this convection and
gradually organize it into an area of showers over the lower md
eastern shore by Friday morning. So have increased the pops in
that area toward morning getting pops to low likely range. The
remainder of the area will otherwise be mainly dry, warm and
humid overnight with lows in the low to mid 70s.

Short term 6 am Friday morning through Sunday
The next cold front approaches late in the day on Friday into
Friday night and moves the region by Saturday afternoon. This
will be the dominate feature for this period and should produce
some shower activity with the front with the best chance for
convection across northern portions of the cwa. Further to the
south, the lift is not as strong or as organized for not
expecting as much pcpn there. So on Friday, will see some
morning showers exiting the DELMARVA and then a general wane in
precipitation. Expect to see some scattered convection due to
the heating of the day, but as the front arrives, activity
should increase. The front slowly pushes southeast overnight
reaching the SE portion of the CWA by Saturday morning. This is
a bit of a change from the 00z and 6z model runs which stalled
the front. But all the 12z guidance pushes the front to the
south of the area by 18z. So have sped up the clearance of the
pops by late Saturday afternoon.

A strong shortwave trough sweeps across the mid-atlantic states
Saturday night, but it remains north of the area and with the
low level moisture gone, not anticipating much except some mid
level clouds. By Sunday, high pressure will be over the region
with dry and seasonable weather in place.

For temperatures, will continue to see near normal weather with
highs in the upper 80s to around 90 each day and lows in the low
to mid 70s each night except for Saturday night when the drier
air will allow temps to drop into the upper 60s to low 70s.

Long term Sunday night through Thursday
Sfc high pressure builds north of the area with stacked high
pressure residing off the southeast coast through Mon night.

A thermal trough develops in the lee of the appalachians for
tue Tue night, and then a cold front is expected to track
through the area on wed... Exiting the coast late Wed night.

Conditions will become increasingly more humid with each
passing day. Sfc features rather diffuse for mon, however
seabreeze boundaries with the presence of ample moisture will
keep a slight chance for showers storms in the forecast...

primarily for the aftn early evening. Thunderstorm activity
expected to become widely scattered Tue as convection develops
invof lee trough. The frontal passage Wed wed night will
provide a better focus for more organized thunderstorms to
occur. Highs mon-wed generally upper 80s to lower 90s;
low-mid 80s beaches. Lows sun-tue nights generally 70-75f.

Lows Wed night mid-upper 60s NW to 70-75f se.

Aviation 00z Friday through Tuesday
Latest radar shows scattered shower activity along the eastern
edge of the mountains and across NE nc primarily south of the
albemarle sound. The latest guidance suggests that these
showers will dissipate and move north and east of the area this
evening. As such, will keep any mention out of the terminals.

Ceilings this evening were allVFR and these conditions will
persist through midnight. A weak boundary will move north of
the area later tonight into Friday morning. High res models hint
that a few showers are possible around daybreak Friday near
orf, phf and ecg, but confidence is not high enough to include
in the terminals. Main story will be ifr CIGS and possible vsby
at ric late tonight into early Friday morning. With the wind
staying around 5 kt, am expecting more of a lower stratus event
vs. A low vsby event at ric. Elsewhere, it should remainVFR or
MVFR with low probability of ifr expected.

Outlook: a cold front approaches the region Friday into
Saturday bringing another chance for showers, thunderstorms, and
sub-vfr conditions. High pressure builds back into the region
Sunday.

Marine
A boundary remains stalled just south of the mason-dixon line
into delaware this aftn. High pressure and fog clouds earlier
this morning have hampered widespread thunderstorm development
today. However, isolated storms may still be possible over srn
waters late this aftn early evening. Winds generally SE around
10kt will increase to around 15kt and become more sly this
evening into Friday as a cold front approaches the region.

Seas waves average 2-3ft. The cold front moves over the waters
late Fri night into sat. South winds average of 15kt bay and
15-20kt ocean with the frontal passage. Seas build to 3-4ft
north of CAPE charles light Fri aftn and may even touch 5ft
for a few hours out near 20nm as the front crosses the waters.

Sca conditions still not anticipated with the increase in
winds seas Fri except with thunderstorms associated with the
front. If any headlines are necessary, they can be handled with
short-fused mws or smw products.

Winds become more sw-w with speeds AOB 10kt early Sat morning
into Sun morning as the front stalls near the mid atlantic coast,
and then become more onshore Sun aftn into Mon as the front sags
well south of the area. Seas subsiding from 2-3ft Sat morning to
2ft by Sat aftn through Mon night. Winds become S on Tue as a
thermal trough develops inland with seas building to 2-3ft. Winds
then become more SW AOB 15kt Tue night Wed as the next cold front
is expected to cross the region; seas build to 3-4ft.

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Ess
near term... Ess
short term... Ess
long term... Bmd
aviation... Mrd jao
marine... Bmd


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BISM2 - 8571421 - Bishops Head, MD 14 mi50 min SSE 14 G 17 82°F 84°F1014.5 hPa
CA2 - 8571892 - Cambridge, MD 26 mi50 min 80°F 82°F1015.1 hPa
44042 - Potomac, MD 33 mi38 min S 12 G 16 81°F 1013.5 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 33 mi50 min S 17 G 19 81°F 1015 hPa
SLIM2 - 8577330 - Solomons Island, MD 35 mi50 min SSE 8.9 G 12 80°F 82°F
OCIM2 - 8570283 - Ocean City Inlet, MD 37 mi50 min SSW 7 G 11 77°F 77°F1015.7 hPa
44062 - Gooses Reef, MD 39 mi38 min SSE 16 G 19 82°F 1014.5 hPa
PPTM2 - 8578240 - Piney Point, MD 40 mi50 min S 12 G 13
LWTV2 - 8635750 - Lewisetta, VA 41 mi50 min S 7 G 8.9 80°F 84°F1014 hPa
44089 43 mi38 min 77°F2 ft
WAHV2 - 8631044 - Wachapreague, VA 46 mi50 min S 12 G 14 79°F 84°F1015.1 hPa

Wind History for Bishops Head, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Salisbury, Salisbury-Ocean City Wicomico County Regional Airport, MD16 mi74 minSSE 410.00 miOvercast78°F71°F79%1015.2 hPa
Cambridge-Dorchester Airport, MD23 mi78 minVar 510.00 miMostly Cloudy81°F71°F74%1014.6 hPa

Wind History from SBY (wind in knots)
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Last 24hrSE3SE3S3CalmCalmSE3CalmCalmCalmCalmCalmCalmSW3CalmE6E8SE9S7S8S9S8S5SE4SE4
1 day agoN4CalmCalmCalmCalmN3N3NW5NW5NW5NW7N5N7NW4NW5CalmCalm5W4S4N3SE8NE3Calm
2 days agoE3SE4SE3CalmCalmCalmCalmCalmNE3CalmSE3CalmCalmS4CalmS5S3NW7E9SE3SE5S4CalmCalm

Tide / Current Tables for Whitehaven, Wicomico River, Chesapeake Bay, Maryland
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Whitehaven
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Thu -- 01:52 AM EDT     Moonrise
Thu -- 05:23 AM EDT     0.31 feet Low Tide
Thu -- 06:19 AM EDT     Sunrise
Thu -- 11:01 AM EDT     2.34 feet High Tide
Thu -- 04:31 PM EDT     Moonset
Thu -- 05:20 PM EDT     0.16 feet Low Tide
Thu -- 07:53 PM EDT     Sunset
Thu -- 11:38 PM EDT     2.95 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.62.11.610.60.30.40.71.21.82.22.32.21.91.40.80.40.20.20.61.21.92.52.9

Tide / Current Tables for Salisbury, Maryland (2 miles below) Current
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Salisbury
Click for Map
Thu -- 12:01 AM EDT     -0.00 knots Slack
Thu -- 01:51 AM EDT     Moonrise
Thu -- 03:12 AM EDT     -0.76 knots Max Ebb
Thu -- 06:19 AM EDT     Sunrise
Thu -- 06:27 AM EDT     0.00 knots Slack
Thu -- 09:00 AM EDT     0.46 knots Max Flood
Thu -- 11:41 AM EDT     -0.00 knots Slack
Thu -- 03:09 PM EDT     -0.94 knots Max Ebb
Thu -- 04:31 PM EDT     Moonset
Thu -- 06:25 PM EDT     0.00 knots Slack
Thu -- 07:53 PM EDT     Sunset
Thu -- 09:29 PM EDT     0.72 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0-0.3-0.6-0.8-0.7-0.5-0.20.20.40.50.40.2-0.1-0.5-0.8-0.9-0.9-0.6-0.20.20.50.70.70.6

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 (21,6,7,8)
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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.