Friday, May26, 2017 L-36.com


Marine Weather and Tides
Greensboro, MD

Version 3.4
What's New / NOTES
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 5:41AMSunset 8:21PM Friday May 26, 2017 1:35 AM EDT (05:35 UTC) Moonrise 5:42AMMoonset 8:20PM Illumination 0% Phase: New Moon; Moon at 1 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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ANZ539 Chester River To Queenstown Md- 1032 Pm Edt Thu May 25 2017
.small craft advisory in effect through Friday afternoon...
Rest of tonight..W winds 15 kt with gusts to 20 kt. Waves 2 ft. Showers with a slight chance of tstms late this evening, then a chance of showers.
Fri..W winds 10 to 15 kt with gusts to 25 kt. Waves 2 ft.
Fri night..NW winds 10 to 15 kt with gusts to 20 kt...diminishing to 5 kt late. Waves 1 to 2 ft.
Sat..W winds 5 kt. Waves less than 1 ft.
Sat night..SE winds 5 kt. Waves less than 1 ft. A chance of showers and tstms.
Sun..SE winds 5 to 10 kt. Waves 1 ft or less.
Sun night..SE winds 5 to 10 kt. Waves 1 ft. A chance of showers and tstms.
Mon..W winds 5 kt. Waves less than 1 ft. A chance of showers. A chance of tstms.
Tue..W winds 5 to 10 kt. Waves 1 ft. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1032 Pm Edt Thu May 25 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure and its associated cold front will move through the area this evening. High pressure will build overhead Friday through Friday night before moving off the mid-atlantic coast Saturday. A warm front will stall out near the waters later Saturday and Sunday before a stronger cold front moves through Monday.

7 Day Forecast for Marine Location Near Greensboro, MD
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location: 38.97, -75.82     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 260432
afdphi
area forecast discussion
national weather service mount holly nj
1232 am edt Fri may 26 2017

Synopsis
An area of low pressure will move away to our northeast through
Friday. A weak surface trough is expected to cross the area
during the day Friday. Weak high pressure may briefly move
across the area Friday night into early Saturday. A weak low is
forecast to move along a developing stationary front to our
south Saturday into Saturday night. Another area of low pressure
is forecast to weaken as it moves into the eastern great lakes
Sunday into Sunday night, then an occluded frontal system is
expected to affect the area Sunday night into early Monday. A
series of cold fronts are forecast to move across the area
Monday through Wednesday.

Near term until 6 am this morning
The mid level low was passing over southern new jersey and
vicinity around midnight. It should reach southeastern new
england around daybreak. Meanwhile, the surface low was off the
northern part of the new jersey coast around midnight. It is
forecast to move east northeastward off the coast of long island
before approaching CAPE cod around daybreak.

The rain showers over our region will continue to diminish
during the balance of the night. We have removed any mention of
thunder based on the radar and lightning data trends over the
past hour or so.

The sky should remain overcast in eastern pennsylvania and
northern and central new jersey. Some breaks in the cloud cover
are anticipated for northeastern maryland, delaware and southern
new jersey.

A southwest to west wind around 5 to 10 mph is expected in the
southern part of our forecast area. The wind should be slower to
increase in the north. As a result, lingering low level
moisture may develop into additional low clouds and patchy fog
there.

Low temperatures are anticipated to favor the 50s.

Short term 6 am this morning through 6 am Saturday
The main upper low shifts into new england on Friday, with
westerly flow prevailing across the area during the day. Several
perturbations in the flow are likely to move through the area
during the day, especially in the morning. This should keep
skies partially to mostly cloudy most of the day, and may allow
for a sprinkle or light shower to occur, especially north of the
mason-dixon line. The 18z NAM has a few showers farther to the
south as a vort MAX rotates southeastward through the mid-
atlantic around midday, but there is not a lot of support from
higher-resolution guidance at the moment. As such, kept pops low
or non-mentionable for the most part south of the i-78 i-195
corridor.

Main sensible weather impact tomorrow may be the winds, with
some stronger mixing likely to occur during the afternoon hours.

Winds above the boundary layer are not particularly strong
(20-30 kts), but gusts of 20-30 mph are likely by afternoon
across most of the area.

Forecast MAX temperatures range from the mid 60s in the poconos
to the mid 70s in the urban corridor to around 80 in southern
delmarva.

Long term Saturday through Friday
An unsettled weather pattern continues for much of the extended
forecast with several periods of rain possible.

Friday night through the early part of Saturday is expected to
be mostly dry as weak high pressure quickly moves across the
area. However, later in the day, a weak area of low pressure
will be approaching from the west but passing to our south along
a developing frontal boundary to our south. Also, a short
wave vorticity impulse is expected to move across the area
during the day, so there will be a chance of an isolated shower
during the day Saturday.

On Saturday night, the frontal boundary is expected to remain
to our south, but should begin lifting northward toward the area
Sunday. It will likely not make its way into the area until
Sunday night. There will be a chance of showers overnight
Saturday into Sunday, but the best chance of showers is expected
to be Sunday night as the occluded front moves into the area.

A series of cold fronts are forecast to move across the area
Monday through Wednesday of next week as low pressure remain
nearly stationary across southern canada just north of the great
lakes region.As any short wave vorticity impulses slide across
the area, they could lead to additional showers or thunderstorms
early next week.

High pressure tries to build back into the area for Thursday,
which would provide a dry forecast.

Aviation 04z Friday through Tuesday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Generally a mix ofVFR and MVFR conditions for the balance of
the night. A light and variable wind and lingering low level
moisture could bring some ifr conditions, mainly to krdg, kabe
and kttn. A west wind is forecast to increase to 5 to 10 knots
at kpne, kphl, kilg, kmiv and kacy. Showers will continue to be
on the decrease.

Vfr conditions develop Friday morning. Winds veer to the w-nw
late Friday morning, and increase to 15-20 kt with gusts up to
23 kt.

Outlook...

Friday night... GenerallyVFR.

Saturday... GenerallyVFR. Showers moving into the area later in
the day, which could lead to lowering ceilings.

Saturday night-Sunday... MVFR CIGS possible. Chance of scattered
showers.

Sunday night... MVFR to ifr conditions possible with periods of
low clouds and rain.

Monday... Generally improving toVFR during the morning.

Scattered showers and thunderstorms possible during the day.

Monday night-Tuesday... GenerallyVFR. Chance of showers or
thunderstorms on Tuesday.

Marine
Small craft advisory continues, mainly for high seas, through
Friday afternoon. Seas at the buoys have increased to 5-6 feet.

Gusts to 25 kt will develop tonight, and then gusty w-nw winds
could continue to gust to 25 kt on Friday.

Showers and thunderstorms likely on the waters tonight. Gusty
winds, small hail, and frequent cloud-to-ground lightning are
all threats from these storms. Locally strong winds rough seas
are likely in vicinity of these storms.

Winds become westerly on Friday. A light shower or two may
occur, especially off the new jersey coast.

Rip currents...

with increasing westerly winds developing during the day
Friday, will keep a moderate risk for the development of
dangerous rip currents in the forecast.

Outlook...

Friday night-Tuesday... Conditions expected to remain below
advisory levels, although winds may gust around 20 knots at
times.

Tides coastal flooding
Widespread minor flooding occurred along the coasts of new
jersey and delaware this evening and into raritan bay, the back
bays and delaware bay. There was some locally moderate flooding
along the new jersey shore. The high tide has all but run its
course and we will let the coastal flood advisory come to an
end.

We will take a closer look at trends to determine whether
another advisory will be needed for Friday evening. The wind
should be from the west today allowing water to drain away from
the coast. However, the astronomical tides remain quite high.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... Small craft advisory until 6 pm edt this evening for
anz450>455.

Synopsis... Robertson
near term... Iovino
short term... Cms
long term... Robertson
aviation... Cms robertson mps
marine... Cms robertson mps
tides coastal flooding... Iovino


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DRSD1 - Delaware Reserve, DE 22 mi80 min WSW 2.9 60°F 1000 hPa60°F
TCBM2 - 8573364 - Tolchester Beach, MD 28 mi47 min W 12 G 14 62°F 66°F1000.1 hPa
CA2 - 8571892 - Cambridge, MD 30 mi53 min 60°F 68°F
CPVM2 30 mi47 min 61°F 61°F
TPLM2 - Thomas Point, MD 33 mi35 min W 13 G 14 60°F 65°F
44063 - Annapolis 33 mi35 min W 9.7 G 14 60°F 65°F1000.3 hPa (+1.8)
SJSN4 - 8537121 - Ship John Shoal, NJ 33 mi47 min WSW 14 G 16 60°F 65°F998.5 hPa
44043 - Patapsco, MD 33 mi35 min W 14 G 16 61°F 65°F1 ft1000.5 hPa (+1.4)
APAM2 - 8575512 - Annapolis, MD 35 mi47 min 60°F 1000 hPa
CHCM2 - 8573927 - Chesapeake City, MD 38 mi53 min SSW 5.1 G 8.9 60°F 67°F999.1 hPa
LWSD1 - 8557380 - Lewes, DE 39 mi47 min WSW 5.1 G 7 61°F 62°F999.7 hPa
FSNM2 41 mi47 min W 12 G 15 60°F 999.7 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 41 mi47 min W 9.9 G 12 61°F 999.9 hPa
44057 - Susquehanna, MD 42 mi35 min W 12 G 16 62°F 68°F998.9 hPa (+1.1)
RDYD1 - 8551910 - Reedy Point, DE 43 mi47 min 59°F 66°F998.4 hPa
44062 - Gooses Reef, MD 43 mi35 min WNW 12 G 14 61°F 62°F1 ft1001.9 hPa (+2.6)
DELD1 - 8551762 - Delaware City, DE 44 mi47 min SW 2.9 G 4.1 58°F 65°F998.8 hPa
BLTM2 - 8574680 - Baltimore, MD 45 mi47 min NW 4.1 G 8 61°F 69°F999.6 hPa
CMAN4 - 8536110 - Cape May, NJ 46 mi47 min WSW 6 G 7 61°F 62°F999.1 hPa
COVM2 - 8577018 - Cove Point LNG Pier, MD 49 mi47 min WNW 8 G 12 60°F 1001.8 hPa
BSLM2 - Chesapeake Bay, MD 49 mi125 min W 2.9 55°F 1000 hPa55°F

Wind History for Tolchester Beach, MD
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Easton / Newman Field, MD17 mi33 minWNW 510.00 miFair61°F57°F90%1002 hPa
Dover Air Force Base, DE22 mi37 minWSW 910.00 miOvercast60°F60°F100%999.3 hPa

Wind History from ESN (wind in knots)
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Last 24hrE10
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W6SW5NW5SW9
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S5S3SW4--SW4W4W4W5
1 day agoNE5NE7NE6NE7NE3N4CalmNE6NE7SE7NE8SE6SE6--SE5SE8SE8
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2 days agoNE4CalmCalmCalmNE4NE4E8E10
G16
E6SE6SE7E6E9E6SE8SE4CalmCalmE4E4E5E6NE5E5

Tide / Current Tables for Greensboro, Choptank River, Maryland
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Greensboro
Click for Map
Fri -- 02:15 AM EDT     0.39 feet Low Tide
Fri -- 05:42 AM EDT     Sunrise
Fri -- 06:41 AM EDT     Moonrise
Fri -- 08:59 AM EDT     4.92 feet High Tide
Fri -- 04:16 PM EDT     0.63 feet Low Tide
Fri -- 08:18 PM EDT     Sunset
Fri -- 09:20 PM EDT     Moonset
Fri -- 09:22 PM EDT     2.89 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.70.40.511.92.944.74.94.74.13.22.41.610.60.71.21.92.52.92.82.4

Tide / Current Tables for Denton, Choptank River, Maryland
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Denton
Click for Map
Fri -- 01:29 AM EDT     0.34 feet Low Tide
Fri -- 05:42 AM EDT     Sunrise
Fri -- 06:42 AM EDT     Moonrise
Fri -- 07:54 AM EDT     4.29 feet High Tide
Fri -- 03:30 PM EDT     0.55 feet Low Tide
Fri -- 08:17 PM EDT     2.52 feet High Tide
Fri -- 08:18 PM EDT     Sunset
Fri -- 09:19 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.40.40.81.52.53.44.14.34.13.52.92.11.50.90.60.611.62.22.52.42.11.6

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 Philadelphia/Mount Holly, PA (1,6,7,8)
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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.