Friday, September20, 2019 L-36.com


Marine Weather and Tides
Choptank, MD

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:48AMSunset 7:06PM Friday September 20, 2019 6:08 AM EDT (10:08 UTC) Moonrise 9:57PMMoonset 11:48AM Illumination 63% Phase: Waning Gibbous; Moon at 21 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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ANZ541 Choptank River To Cambridge Md And The Little Choptank River- 519 Am Edt Fri Sep 20 2019
Today..SW winds 5 kt. Waves less than 1 ft.
Tonight..SW winds 5 to 10 kt. Waves 1 ft.
Sat..SW winds 5 kt. Waves less than 1 ft.
Sat night..S winds 5 to 10 kt. Waves 1 ft.
Sun..S winds 5 to 10 kt. Waves 1 ft.
Sun night..S winds 10 to 15 kt. Waves 2 ft.
Mon..W winds 5 to 10 kt. Waves 1 to 2 ft.
Tue..N winds 5 to 10 kt. Waves 1 ft.
ANZ500 519 Am Edt Fri Sep 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain across the waters through Saturday before settling to the south on Sunday. Small craft advisories will be possible for a portion of the waters Sunday night.


7 Day Forecast for Marine Location Near Choptank, MD
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location: 38.68, -75.95     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 200715
afdphi
area forecast discussion
national weather service mount holly nj
315 am edt Fri sep 20 2019

Synopsis
High pressure across the middle atlantic region today will weaken
and move offshore by the end of the weekend. Low pressure will move
across canada and cause a cold front to cross our region Monday
night. More high pressure will build in next Tuesday and remain
through the middle of next week.

Near term until 6 pm this evening
The mid-level ridge over the eastern u.S. Will sharpen today. As
this occurs, surface high pressure across the northern mid-atlantic
will settle across the carolinas.

Vertical profiles show little moisture today. The exception is right
at the surface and between h5-h3. As a result, we could see a bit of
fog right at sunrise and some high cirrus as we move through the
day.

So, all-in-all, another quiet day.

Afternoon high temperatures should top out about 5 degrees warmer
than yesterday. Most locations will make it into the mid to upper
70s. There will be very little change in dewpoints compared to
yesterday. Winds will be less than 10 mph from the west.

A comfortable day ahead.

Short term 6 pm this evening through 6 am Saturday
Very little change expected in the overall pattern across the
eastern u.S. Tonight. The mid-level ridge axis shifts from the
central great lakes to the eastern great lakes. Surface high
pressure remains in place.

We will see some warm air advection. West winds will transport some
warmer air from the ohio valley across the mid-atlantic. So even
though skies will be mainly clear tonight and winds will go light
once again, temperatures will be several degrees warmer compared to
what's occurring right now at this hour.

Patchy shallow fog is possible toward daybreak.

Long term Saturday through Thursday
Sat thru Sunday night... Fair weather with some increasing clouds
Sunday night. High pressure to the south will weaken and move
offshore. A return flow of mild and somewhat more humid air will be
across the area. Highs both Sat and Sun will be above normal with
readings Sunday in the mid upper 80s. Sat night will be seasonably
chilly, but Sunday night will be mild. Some patchy fog is possible
sun morning.

Monday Monday night... The high pressure will have moved away and a
progressive h5 trough and sfc cold front will approach from the nw.

Increasing clouds for Monday with chc pops overspreading the area
from W to e. Monday will be another very warm day with highs like
that on Sunday.

Tue Wed thu... More fair weather is expected during the mid-week
period with another high pressure area building across the area.

Temperatures Tue Wed will be close to normal but then readings will
jump back above normal for Thursday.

Aviation 07z Friday through Tuesday
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.

Today...VFR. Light w-sw winds in the morning, becoming w-sw 5 to 10
kt in the afternoon.

Tonight... MainlyVFR conditions expected. Patchy fog possible. Light
w-sw winds.

Outlook...

Saturday thru Sunday night...VFR expected. Increasing clouds Monday.

Patchy morning fog possible each day.

Monday and Monday night... MostlyVFR. Scattered showers.

Tue...VFR expected.

Marine
Today... Southwest winds increasing to 10 to 15 knots. Seas at the
buoys, very early this morning, are showing 5 to 8 feet. They are
expected to diminish to 4 to 6 ft later today. But as a result of
seas remaining 5 feet or higher, a SCA is in place. Dominant periods
are long... About 9 to 12 seconds. But as the wind increases this
afternoon, periods will effective shorten.

Tonight... SCA conditions should continue for much of the night. West
winds should continue to gust in the 15 to maybe 20 kt range. Long
period swells emanating from humberto should begin to slowly drop
off after midnight.

Outlook...

sat sun... Sub-sca conditions expected with fair weather. Winds and
seas will slowly increase Sunday afternoon.

Sun night Monday... SCA conditions expected on the ocean and sub-sca
across delaware bay. Scattered showers Monday.

Mon night thru tue... Mostly sub-sca expected. Few showers mon
night then fair.

Rip currents... A high risk for the development of dangerous rip
currents continues through today as the long period swells and high
seas continue from hurricane humberto. A rip current statement
(under the coastal hazard message) is carrying the related info.

Phi watches warnings advisories
Pa... None.

Nj... High rip current risk through this evening for njz014-024>026.

De... High rip current risk through this evening for dez004.

Md... None.

Marine... Small craft advisory until 8 am edt Saturday for anz450>455.

Synopsis... O'hara
near term... Kruzdlo
short term... Kruzdlo
long term... O'hara
aviation... Kruzdlo o'hara
marine... Kruzdlo o'hara


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CA2 - 8571892 - Cambridge, MD 10 mi56 min S 5.1 G 6 57°F 74°F1025.9 hPa
44062 - Gooses Reef, MD 26 mi50 min W 7.8 G 9.7 65°F 1026.8 hPa
TPLM2 - Thomas Point, MD 30 mi68 min SSW 11 G 13 63°F 75°F1026.7 hPa (+0.4)57°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 30 mi50 min WSW 4.1 G 8 63°F 1026.6 hPa
BISM2 - 8571421 - Bishops Head, MD 32 mi56 min N 1 G 1 63°F 71°F1026.4 hPa
CPVM2 32 mi56 min 64°F
44063 - Annapolis 33 mi38 min W 7.8 G 9.7 60°F 74°F1025.9 hPa
APAM2 - 8575512 - Annapolis, MD 35 mi50 min 58°F 1025.5 hPa
SLIM2 - 8577330 - Solomons Island, MD 36 mi50 min SW 5.1 G 6 64°F 76°F1025.8 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 40 mi56 min E 1.9 G 5.1 57°F 74°F1026 hPa
BSLM2 - Chesapeake Bay, MD 41 mi158 min Calm 52°F 1026 hPa52°F
LWSD1 - 8557380 - Lewes, DE 45 mi50 min SW 6 G 7 54°F 70°F1025.9 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 48 mi50 min WSW 6 G 7 59°F 1025.8 hPa
FSNM2 48 mi62 min W 7 G 8.9 59°F 1025.5 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 49 mi56 min 1026.2 hPa
PPTM2 - 8578240 - Piney Point, MD 49 mi50 min WSW 4.1 G 6
44042 - Potomac, MD 49 mi32 min WSW 5.8 G 7.8 65°F 75°F1028.7 hPa

Wind History for Cambridge, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Easton / Newman Field, MD11 mi68 minN 010.00 miFair52°F50°F94%1026.7 hPa
Cambridge-Dorchester Airport, MD11 mi88 minN 010.00 miFair48°F46°F94%1025.7 hPa

Link to 5 minute data for KESN

Wind History from ESN (wind in knots)
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Last 24hrN4N4N7NE7NE4E4N5E4NW3N4W4W6NW6E3SE3--CalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmN3NE7NE9NE8N10NE7NE11NE6NE7N9E9E4E6E4E6E4E3CalmN3N3N4N4N3
2 days agoNE4NE6NE10NE13
G17
NE8E8NE6NE9NE10NE5NE5E3E6E3E4E3CalmCalmCalmCalmN3CalmNE4N3

Tide / Current Tables for Choptank, Choptank River, Maryland
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Choptank
Click for Map
Fri -- 04:33 AM EDT     1.16 feet Low Tide
Fri -- 06:49 AM EDT     Sunrise
Fri -- 09:02 AM EDT     1.91 feet High Tide
Fri -- 12:48 PM EDT     Moonset
Fri -- 03:22 PM EDT     0.58 feet Low Tide
Fri -- 07:04 PM EDT     Sunset
Fri -- 09:52 PM EDT     2.73 feet High Tide
Fri -- 10:56 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.11.81.51.31.21.21.31.61.81.91.81.61.310.70.60.60.91.31.82.32.62.72.6

Tide / Current Tables for Dover Bridge, Choptank River, Maryland
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Dover Bridge
Click for Map
Fri -- 05:38 AM EDT     1.22 feet Low Tide
Fri -- 06:49 AM EDT     Sunrise
Fri -- 10:37 AM EDT     2.02 feet High Tide
Fri -- 12:48 PM EDT     Moonset
Fri -- 04:27 PM EDT     0.61 feet Low Tide
Fri -- 07:04 PM EDT     Sunset
Fri -- 10:56 PM EDT     Moonrise
Fri -- 11:27 PM EDT     2.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.62.321.61.41.31.21.31.61.8221.81.51.10.80.60.60.81.21.72.22.62.9

Weather Map
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wmap_A
GEOS Local Image of Mid-Atlantic    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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Wind Forecast for Philadelphia/Mount Holly, PA (6,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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.