Thursday, May24, 2018

Marine Weather and Tides
Vienna, MD

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:42AMSunset 8:16PM Thursday May 24, 2018 9:33 PM EDT (01:33 UTC) Moonrise 2:23PMMoonset 2:14AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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- 731 Pm Edt Thu May 24 2018
Tonight..S winds 5 to 10 kt. Waves 1 ft.
Fri..S winds 5 to 10 kt. Waves 1 ft.
Fri night..S winds 10 kt. Waves 2 ft.
Sat..SW winds 10 kt. Waves 1 ft. Showers likely with a chance of tstms.
Sat night..SW winds 5 to 10 kt. Waves 1 ft. Showers likely with a chance of tstms.
Sun..SW winds 10 kt. Waves 1 ft. Showers and tstms likely.
Sun night..SW winds 5 to 10 kt. Waves 1 ft. Showers likely.
Mon..SW winds 5 to 10 kt. Waves 1 ft. Showers and tstms likely, then a chance of showers after midnight.
Tue..S winds 5 kt. Waves less than 1 ft. A chance of showers in the morning. A chance of showers through the night. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 731 Pm Edt Thu May 24 2018
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will move offshore Friday and remain positioned there through the weekend. Low pressure may approach the area from the south early next week. Small craft advisories may be needed Friday night into the weekend.

7 Day Forecast for Marine Location Near Vienna, MD
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location: 38.48, -75.82     debug

Area Discussion for - Wakefield, VA
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Fxus61 kakq 250100
area forecast discussion
national weather service wakefield va
900 pm edt Thu may 24 2018

Dry weather is expected through Friday under the influence of
high pressure off the mid-atlantic coast. Low pressure over the
gulf of mexico will gradually bring a return of moisture for
the upcoming weekend, mainly in the form of afternoon showers
and thunderstorms.

Near term through Friday
As of 900 pm edt Thursday...

have made only minor tweaks to min temps based upon last nights
readings. Otherwise, skies are clear and winds are light making
for a very pleasant late may evening.

Previous discussion... Sfc high pressure (1022 mb) is currently
situated off the eastern shore with a cold front now down into
central nc. Drier air (dew pts in the 50s) have made their way
into much of the area with little to no afternoon CU to speak
of. The offshore high will set the stage for a great evening.

Clear and comfortable tonight with lows in the mid 50s to low

Modest increase in temps expected on Friday, as thicknesses
increase slightly and winds veer around to the SW as the surface
high shifts further offshore. MOS and local thickness tool
support highs into the mid to upper 80s (upr 70s low immediate

Short term Friday night through Sunday
As of 330 pm edt Thursday...

by Friday night into the weekend, we'll see the southerly flow
begin to bring more moisture back to the region as the surface
high slides even further off the coast and the deep tropical
moisture feed that is in place from the west caribbean gets
pulled farther north. Models are coming into better agreement
with respect to handling of the system currently near the
yucatan, with the GFS now trending west with the system similar
to the ecmwf. Even with the system heading more toward louisiana
we can still expect an increase in humidity locally, due to
sustained southerly flow from the gomex, and a mainly diurnal
chance of showers and thunderstorms both Saturday and Sunday.

Highs Sat Sun in the mid 80s, except slightly cooler immediate coast.

Lows from the mid 60s to low 70s.

Long term Sunday night through Thursday
As of 330 pm edt Thursday...

still much uncertainty with both the track and amount of
moisture associated with any tropical system next week. Both the
gfs ECMWF stall the system over the gulf coast states but
differ on the amount of moisture making it this far north. Ecmwf
keeps the deepest moisture south while the GFS shows periodic
atlantic and tropical moisture drifting north along a stalled
boundary across the region.

Upshot will be to keep pops in each day, highest across the south
and greatest chc for thunder during the aftn eve Mon tue. Pops
cont Wed Thu as the tropical moisture gets caught in the
westerlies and tracks ene. Highs upr 70s-mid 80s. Lows mid 60s-
lwr 70s.

Aviation 01z Friday through Tuesday
As of 800 pm edt Thursday...

mainly clear through the 00z TAF period with light E SE winds,
becoming S ssw on Saturday. Winds generally 10 kts or less,
except at ksby, where winds will be in the 10-15 kt range.

Outlook... Expect moisture to increase for the upcoming holiday
weekend with scattered showers t-storms possible each
afternoon evening from sat-mon. Flight restrictions will be
possible in around tstms.

As of 330 pm edt Thursday...

no headlines as high pressure moves off the coast then dominates
through the holiday weekend. Nne becomes become S then SW as the
return flow sets up. Could see periodic south channeling in the ches
bay at times, but guidance consensus keeps the winds generally at or
below 15 kts. Seas 2-3 ft with 1-2 foot waves.

As of 330 pm edt Thursday...

a flood warning continues for the appomattox river basin. Expect
the river level will drop below flood stage by this evening. A
flood warning remains in effect for the nottoway river at
sebrell as the river will crest just above minor stage this
evening or tonight. Additional flood warnings continue for
portions of the mattaponi river and for kerr lake due to ongoing
road closure issues. See flwakq and flsakq for more details.

Tides coastal flooding
Levels should reach action stage at bishops head Friday night
due to the south channelling.

As of 330 pm edt Thursday...

* ric monthly rainfall total through 5 23 is 10.25" which now
ranks as the wettest may on record. (breaking the old record
of 9.79" in 2016). (precipitation records date back to 1880).

* sby monthly rainfall total through 5 23 is 8.63" which
already ranks as 3rd wettest may on record (wettest is 10.38"
in 1948). (precipitation records date back to 1906).

Akq watches warnings advisories
Md... None.

Nc... None.

Va... None.

Marine... None.

Synopsis... Jdm
near term... Jdm wrs
short term... Jdm mam
long term... Mpr
aviation... Jdm wrs
marine... Mpr

tides coastal flooding...


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 15 mi45 min 73°F 77°F1021.4 hPa
BISM2 - 8571421 - Bishops Head, MD 21 mi45 min SSE 15 G 17 74°F 80°F1021.2 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 30 mi45 min W 1.9 G 2.9 75°F 1020.9 hPa
44062 - Gooses Reef, MD 32 mi33 min SW 3.9 G 5.8 74°F 1020.2 hPa (-0.8)
SLIM2 - 8577330 - Solomons Island, MD 35 mi45 min E 1.9 G 5.1 73°F 74°F1020.3 hPa
OCIM2 - 8570283 - Ocean City Inlet, MD 40 mi51 min SSW 6 G 7 66°F 67°F1021.6 hPa
44042 - Potomac, MD 41 mi33 min S 9.7 G 12 73°F 73°F1020.2 hPa (+0.6)
LWSD1 - 8557380 - Lewes, DE 43 mi51 min S 6 G 8 68°F 69°F1020.6 hPa
TPLM2 - Thomas Point, MD 44 mi33 min SSW 5.1 G 5.1 73°F 69°F1021 hPa (+0.0)62°F
PPTM2 - 8578240 - Piney Point, MD 45 mi45 min S 8.9 G 9.9
CPVM2 47 mi45 min 73°F 62°F
44063 - Annapolis 47 mi63 min SW 3.9 G 3.9 74°F 1020.3 hPa
DRSD1 - Delaware Reserve, DE 47 mi123 min SE 2.9 72°F 1020 hPa54°F
LWTV2 - 8635750 - Lewisetta, VA 48 mi45 min S 8 G 8.9 73°F 77°F1020.8 hPa
APAM2 - 8575512 - Annapolis, MD 49 mi45 min 74°F 1019.6 hPa

Wind History for Cambridge, MD
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Cambridge-Dorchester Airport, MD12 mi58 minN 010.00 miFair70°F59°F69%1020.3 hPa
Salisbury, Salisbury-Ocean City Wicomico County Regional Airport, MD20 mi39 minS 410.00 miFair66°F57°F75%1021.2 hPa

Wind History from CGE (wind in knots)
Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmNW4N7N6N7N7N66N7CalmNW6N6NW5NW6CalmCalmSE5
1 day ago346
2 days agoSE3CalmCalmCalmSE3CalmCalmCalm4SE5SE7SE9S8S96

Tide / Current Tables for Vienna, Nanticoke River, Chesapeake Bay, Maryland
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Thu -- 01:07 AM EDT     2.31 feet High Tide
Thu -- 03:13 AM EDT     Moonset
Thu -- 05:45 AM EDT     Sunrise
Thu -- 07:27 AM EDT     0.08 feet Low Tide
Thu -- 01:33 PM EDT     2.20 feet High Tide
Thu -- 03:23 PM EDT     Moonrise
Thu -- 07:49 PM EDT     0.01 feet Low Tide
Thu -- 08:15 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Salisbury, Maryland (2 miles below) Current
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Thu -- 12:07 AM EDT     -0.00 knots Slack
Thu -- 03:12 AM EDT     Moonset
Thu -- 03:20 AM EDT     -0.75 knots Max Ebb
Thu -- 05:44 AM EDT     Sunrise
Thu -- 06:29 AM EDT     0.00 knots Slack
Thu -- 09:23 AM EDT     0.51 knots Max Flood
Thu -- 12:14 PM EDT     -0.00 knots Slack
Thu -- 03:22 PM EDT     Moonrise
Thu -- 03:51 PM EDT     -0.90 knots Max Ebb
Thu -- 07:07 PM EDT     0.00 knots Slack
Thu -- 08:14 PM EDT     Sunset
Thu -- 10:08 PM EDT     0.67 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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GOES Local Image of    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Wakefield, VA (21,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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 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 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.