Thursday, November23, 2017 L-36.com


Marine Weather and Tides
Greensboro, 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 6:55AMSunset 4:46PM Thursday November 23, 2017 9:59 AM EST (14:59 UTC) Moonrise 10:55AMMoonset 9:07PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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- 932 Am Est Thu Nov 23 2017
Rest of today..W winds 5 to 10 kt. Waves 1 ft.
Tonight..W winds 5 kt. Waves less than 1 ft.
Fri..S winds 5 kt. Waves less than 1 ft.
Fri night..S winds 5 to 10 kt. Waves 1 ft.
Sat..SW winds 5 to 10 kt. Waves 1 ft.
Sat night..NW winds 10 to 15 kt. Gusts up to 25 kt after midnight. Waves 1 to 2 ft.
Sun..NW winds 10 to 15 kt. Waves 1 to 2 ft.
Mon..SW winds 5 to 10 kt. Waves 1 ft.
ANZ500 932 Am Est Thu Nov 23 2017
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will remain over the waters through Friday night. A cold front will approach early Saturday before crossing Saturday night. High pressure will return for Sunday and Monday. A small craft advisory will likely be issued for Saturday night and Sunday.

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 231137
afdphi
area forecast discussion
national weather service mount holly nj
637 am est Thu nov 23 2017

Synopsis
High pressure will build build across the east coast today
through early Friday, before shifting offshore later on Friday.

A cold front is forecast to move across the area during the day
Saturday. High pressure builds across the region Monday, then
offshore and to our south Monday night into Tuesday. A cold
front is expected later Tuesday into Wednesday, though
precipitation may dry out before reaching the east coast.

Near term until 6 pm this evening
Center of the surface high will settle in just south of our
region. In the mid and upper levels, a weak short wave trough
will approach from the west. However, thanks to a very dry
boundary layer, this will have little impact aside from
increasing clouds late in the day.

Stayed very close to the previous forecast with highs ranging
from the upper 30s to upper 40s.

Short term 6 pm this evening through 6 am Friday
The surface high will remain in place, leading to continued
light winds. Thus, despite some mid and high clouds through the
evening, expect efficient radiational cooling conditions.

Therefore, for low temperatures went on the lower side of
guidance, with lows ranging from the lower 20s to lower 30s.

Long term Friday through Wednesday
Fairly quiet weather is continues for most of the extended
period through next Wednesday, with a chance of isolated showers
this weekend.

High pressure will be in place early Friday, before shifting
offshore through the day. Dry weather is expected to continue
across the region Friday and Friday night. Temperatures are
forecast to warm back to near or slightly above normal Friday.

A cold front is expected to move across the area during the day
Saturday. Models do not have a significant amount of
precipitation forecast with this frontal passage. But pw values
do approach one inch, and there is some enhanced low-mid level
moisture forecast as the short wave vorticity impulse and cold
front move across the area. So we will keep a slight chance of
showers in the forecast during the day Saturday.

Northwest flow develops across the area behind the front
overnight for Saturday night into Sunday. It is possible that
some isolated lake effect showers flurries could make their way
across our area Saturday night into early Sunday morning in the
northwest flow. As usual, the poconos have the better chance of
any showers. However, the flow from the great lakes gets cut off
during the day Sunday, so any showers are expected to end
during the morning.

Temperatures remain above normal Saturday before the front
moves through the area, but falls back to near normal or
slightly below for Sunday.

By Sunday night, high pressure begins to approach from the west
then fully builds across the area Monday. The front then pushes
offshore and to our south Monday night into Tuesday. This will
bring dry weather back to the area early next week. Temperatures
are expected to be warm back to above normal Monday through
Tuesday as return flow develops.

A cold front is forecast to move across the area Tuesday night
into Wednesday. Moisture associated with this front is expected
to dissipate as it approaches our area and the frontal passage
may end up being precipitation free. Even with the frontal
passage, temperatures are forecast to be above normal into
Wednesday.

Aviation 12z Thursday through Monday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Today...VFR conditions expected with increasing mid an upper
level clouds after 18z. Northwesterly winds will slowly back to
westerly. However, wind speeds are generally expected to be 10
kt or less. High confidence on all aspects of the forecast.

Tonight...VFR conditions expected with only some mid to upper
level clouds. Winds will generally be westerly at 5 kt or less,
but could become light and variable. High confidence on all
aspects of the forecast.

Outlook...

Friday-Friday night...VFR expected. Westerly winds Thursday-
early Friday. Becoming southwest later Friday into Friday night.

High confidence.

Saturday-Sunday... GenerallyVFR. Isolated showers possible
which may occasionally lower conditions. Southwest winds early
Saturday, becoming west to northwest and gusting 20-25 knots
Saturday night into Sunday. Moderate confidence on showers and
sub-vfr conditions, high confidence on winds.

Sunday night-Monday...VFR expected. High confidence.

Marine
Although gusts near or above 20 kt will be possible through the
morning hours, winds and seas are expected to stay below small
craft advisory criteria today and tonight.

Outlook...

Friday-Saturday... Sub small craft advisory conditions expected,
although seas may be around 4 feet at times Friday night into
Saturday.

Saturday night-Sunday night... Small craft advisory conditions
likely behind cold frontal passage.

Monday... Conditions falling below small craft advisory levels.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Robertson
near term... Johnson
short term... Johnson
long term... Robertson
aviation... Johnson robertson
marine... Johnson robertson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DRSD1 - Delaware Reserve, DE 22 mi89 min NW 2.9 34°F 1022 hPa24°F
TCBM2 - 8573364 - Tolchester Beach, MD 28 mi41 min NNW 11 G 13 36°F 47°F1022.5 hPa
CPVM2 30 mi41 min 36°F 24°F
CA2 - 8571892 - Cambridge, MD 30 mi47 min 38°F 48°F1023.1 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 33 mi41 min NNW 12 G 17 35°F 50°F1021.4 hPa
44063 - Annapolis 33 mi29 min NNW 5.8 G 7.8 36°F 1022.4 hPa
TPLM2 - Thomas Point, MD 33 mi59 min NW 8.9 G 9.9 35°F 51°F
44043 - Patapsco, MD 33 mi29 min NNW 7.8 G 12 37°F 1023 hPa
APAM2 - 8575512 - Annapolis, MD 35 mi41 min 36°F 1022 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 37 mi47 min NNW 12 G 17 36°F 1022 hPa
CHCM2 - 8573927 - Chesapeake City, MD 38 mi47 min WNW 5.1 G 6 34°F 47°F1022.4 hPa
LWSD1 - 8557380 - Lewes, DE 39 mi41 min NNW 13 G 15 37°F 49°F1021.6 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 41 mi41 min W 7 G 8 35°F 1022.3 hPa
44057 - Susquehanna, MD 42 mi29 min NNW 3.9 G 5.8 36°F 1022 hPa
RDYD1 - 8551910 - Reedy Point, DE 43 mi41 min 34°F 49°F1021.5 hPa
44062 - Gooses Reef, MD 43 mi29 min N 12 G 16 38°F 1023.3 hPa
DELD1 - 8551762 - Delaware City, DE 44 mi41 min NNW 7 G 9.9 34°F 46°F1021.9 hPa
BLTM2 - 8574680 - Baltimore, MD 45 mi41 min NNW 2.9 G 7 37°F 53°F1021.8 hPa
CMAN4 - 8536110 - Cape May, NJ 46 mi41 min NNW 8 G 12 37°F 50°F1021.2 hPa
BSLM2 - Chesapeake Bay, MD 49 mi89 min Calm 28°F 1023 hPa27°F
COVM2 - 8577018 - Cove Point LNG Pier, MD 49 mi41 min N 14 G 16 37°F 1022.9 hPa

Wind History for Tolchester Beach, MD
(wind in knots)    EDIT      (on/off)   Help
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G17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Easton / Newman Field, MD17 mi67 minNNW 510.00 miPartly Cloudy37°F24°F60%1023.7 hPa
Dover Air Force Base, DE22 mi63 minNW 910.00 miFair35°F26°F69%1022.3 hPa

Wind History from ESN (wind in knots)
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Last 24hrNW16
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G16
N5N6N10
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N9
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N8N6N3CalmCalmN4CalmCalmN4CalmN5N6
1 day agoSW11
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S8--S8S8SW6SW4SW5S7SW7SW8SW4CalmCalmW4W4W5--N6
2 days agoNW9NW9
G18
W9
G15
W8
G16
W8NW10SW5SW4SW3SW5SW6S5S5SW6SW5S4SW5SW4S5S8S8S7S9S14
G18

Tide / Current Tables for Greensboro, Choptank River, Maryland
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Greensboro
Click for Map
Thu -- 05:51 AM EST     0.70 feet Low Tide
Thu -- 06:55 AM EST     Sunrise
Thu -- 10:50 AM EST     1.99 feet High Tide
Thu -- 10:55 AM EST     Moonrise
Thu -- 04:27 PM EST     0.23 feet Low Tide
Thu -- 04:44 PM EST     Sunset
Thu -- 09:07 PM EST     Moonset
Thu -- 11:19 PM EST     3.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.12.62.11.51.10.80.70.91.21.61.921.81.40.90.50.30.30.51.11.72.42.93.2

Tide / Current Tables for Denton, Choptank River, Maryland
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Denton
Click for Map
Thu -- 05:05 AM EST     0.61 feet Low Tide
Thu -- 06:54 AM EST     Sunrise
Thu -- 09:45 AM EST     1.73 feet High Tide
Thu -- 10:54 AM EST     Moonrise
Thu -- 03:41 PM EST     0.21 feet Low Tide
Thu -- 04:44 PM EST     Sunset
Thu -- 09:07 PM EST     Moonset
Thu -- 10:14 PM EST     2.80 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.81.410.70.60.711.41.71.71.61.20.80.50.30.20.40.91.52.12.62.82.7

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 (9,2,3,4)
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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.