Thursday, August22, 2019 L-36.com


Marine Weather and Tides
Galena, MD

Version 3.4
NOTICE
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 6:20AMSunset 7:50PM Thursday August 22, 2019 11:18 PM EDT (03:18 UTC) Moonrise 10:41PMMoonset 11:54AM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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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ANZ530 Chesapeake Bay North Of Pooles Island- 1036 Pm Edt Thu Aug 22 2019
Rest of tonight..NW winds 5 to 10 kt. Waves 1 ft or less. Scattered showers and tstms late this evening, then scattered showers with isolated tstms. Patchy fog with vsby 1 to 3 nm.
Fri..N winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Fri night..N winds 5 to 10 kt. Waves 1 ft or less.
Sat..NE winds 5 to 10 kt. Waves 1 ft.
Sat night..NE winds 5 to 10 kt. Waves 1 ft or less.
Sun..NE winds 5 to 10 kt. Waves 1 ft.
Sun night..NE winds 5 to 10 kt. Waves 1 ft.
Mon..E winds 5 to 10 kt. Waves 1 ft. A chance of showers.
Tue..SE winds 5 kt. Waves less than 1 ft. A chance of showers. Winds and waves higher and visibilities lower in and near tstms.
ANZ500 1036 Pm Edt Thu Aug 22 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. A cold front will approach the waters tonight, then stall over the carolinas on Saturday. High pressure will then settle over the area Saturday into Sunday. Small craft advisories are possible over the southern waters Friday night through Sunday .


7 Day Forecast for Marine Location Near Galena, MD
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location: 39.37, -75.93     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 230148
afdphi
area forecast discussion
national weather service mount holly nj
948 pm edt Thu aug 22 2019

Synopsis
A slow moving cold front will track through the forecast area
tonight into Friday. The front will settle well to our south through
early next week as high pressure builds to our north. The high will
retreat northward on Wednesday as low pressure lifts northward off
the eastern seaboard and a cold front approaches the region from the
west. The cold front is then forecast to move into the mid-atlantic
region late next week.

Near term until 6 am Friday morning
What remains of the main line of storms is crossing northern
delmarva now. Further north, much of the line has already
dissipated. It is inconclusive if the line of storms is still
collocated with the cold front or not as it is more difficult
to decipher the front from the storm outflow boundaries at this
time. Given the arrival of the initial line a few hours earlier
than previously expected, I trended pops down for the rest of
the night, especially north and west of the delaware valley.

Isolated showers are still possible in this area for the next
few hours until we start to see significant dry air advection,
but otherwise, mostly dry conditions are expected for these
areas.

Tonight's low temperatures are forecast to range from the upper
50s in the poconos to around 70 on the coastal plain of the
upper DELMARVA and southern new jersey.

Short term 6 am Friday morning through 6 pm Friday
The cold front is forecast to extend across far southern new jersey,
central delaware and adjacent areas of northeastern maryland around
daybreak on Friday. It expected expected to drift southward,
reaching the virginia capes late in the day. The slow movement of
the boundary will translate into a very gradual improving trend from
north to south in our region on Friday.

We will keep a chance of showers from the philadelphia metropolitan
area and southern new jersey southward for Friday morning. We will
limit the mention of showers to areas from about dover de and ocean
city nj southward for the afternoon. It appears as though any
substantial instability will have drifted to our south by Friday
morning, so we will not include any thunder.

It should remain mostly cloudy across northeastern maryland,
delaware and southern new jersey through the day. However, some
clearing from the northwest and north is anticipated for eastern
pennsylvania, and for northern and central new jersey.

The wind is expected to be from the northwest and north around 10
mph. Temperatures will be considerably cooler than those of recent
days with highs mostly in the 80 degree neighborhood. Readings will
likely not get above the lower and middle 70s in the elevated
terrain on the poconos and far northern new jersey.

Long term Friday night through Thursday
The long term forecast will begin with below normal
temperatures and more comfortable dewpoints and end with normal
to above normal temperatures and greater chances of convectively
driven precipitation.

For Friday night, lingering showers and thunderstorms could remain
across southern new jersey, and southern delaware and maryland. Pw
values remain near 2.0 inches, so some locally heavy rain is
possible.

Saturday could end up the better of weekend days as high pressure
builds well to our north across eastern canada and winds just start
to turn onshore. Temperatures will be below normal.

The period between Sunday and Tuesday, could see more cloud cover
and light precipitation. This is due to a persistent onshore flow.

Guidance, for a couple of days now, is showing precipitation for
this period. However onshore flow can manifest itself in a number
ways... Low clouds, fog, drizzle or light rain. At a minimum, expect
some cloud cover along the coastal plain.

As we move into Wednesday and Thursday, unsettled weather should
return to the area. An area of low pressure is forecast to be
lifting northward offshore of the east coast, while a cold front
approaches from the west. Showers and thunderstorms are likely to
develop as the cold front nears the forecast area.

Aviation 02z Friday through Tuesday
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.

Tonight... MostlyVFR conditions are expected. However, brief ifr
conditions are possible with thunderstorms which are possible
mostly for kilg, kmiv, and kacy through 06z. West to southwest
wind around 10 knots becoming northwest to north 5 to 10 knots.

Friday... MainlyVFR. A chance of showers, mainly from the kphl area
southward. Northwest to north wind 5 to 10 knots.

Outlook...

Friday night...VFR except MVFR possible across southern nj, southern
de, and the eastern shore of md due to showers and thunderstorms. N
to NE winds mainly 5 to 10 kts.

Saturday-Saturday night... MainlyVFR conditions expected. MVFR
conditions possible at kacy and kmiv Saturday night as an onshore
flow generates some clouds. Winds generally NE 5-10 knots.

Sunday... MainlyVFR conditions expected. MVFR conditions possible at
kacy and kmiv as an onshore flow generates some clouds drizzle light
rain. NE winds 5-10 kts with gusts up to 20 knots possible.

Sunday night-Tuesday... More widespread MVFR conditions developing
with the persistent onshore flow. E to NE winds 5-10 kts with gusts
up to 20 kts possible.

Marine
A south to southwest wind 10 to 15 knots this evening, becoming
northwest to north around 10 knots overnight. North wind around 10
knots on Friday, becoming variable 10 knots or less late in the day.

Waves on our ocean waters are forecast to be around 2 to 3 feet.

Waves on delaware bay are expected to be 2 feet or less.

Outlook...

Friday night-Saturday... Sub-sca conditions expected much of the
period. Low end SCA conditions possible late Saturday.

Saturday night... Low end SCA conditions possible due to long fetch e
to NE winds developing.

Sunday-Tuesday... A prolonged low end SCA may be needed through the
period as long fetch E to NE winds persist.

Rip currents...

a northerly wind around 10 mph is expected for Friday. Breaking
waves around 2 to 3 feet are likely along with a medium period
southerly swell. A low risk is forecast.

A long duration northeast to east wind is expected for the weekend
and into the early part of the new week. As a result, we are
anticipating a prolonged period with an enhanced risk for the
development of dangerous rip currents from Saturday through at
least Tuesday.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Kruzdlo
near term... Iovino johnson
short term... Iovino
long term... Kruzdlo
aviation... Iovino johnson kruzdlo
marine... Iovino kruzdlo


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHCM2 - 8573927 - Chesapeake City, MD 13 mi54 min SSW 1 G 4.1 72°F 85°F1014.1 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi54 min E 2.9 G 5.1 72°F 85°F1014.1 hPa
DELD1 - 8551762 - Delaware City, DE 23 mi60 min WNW 9.9 G 17 75°F 81°F1013.7 hPa
RDYD1 - 8551910 - Reedy Point, DE 23 mi54 min 75°F 85°F1013.3 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 30 mi54 min W 15 G 18 83°F 85°F1014.2 hPa
DRSD1 - Delaware Reserve, DE 33 mi108 min S 1.9 80°F 1012 hPa73°F
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 33 mi48 min NNE 12 G 14 74°F 1013.5 hPa
FSNM2 33 mi54 min NNE 8 G 12 72°F 1013.5 hPa
BLTM2 - 8574680 - Baltimore, MD 35 mi54 min SE 5.1 G 8 74°F 85°F1013.8 hPa
CPVM2 36 mi48 min 76°F 76°F
APAM2 - 8575512 - Annapolis, MD 40 mi48 min 76°F 1013.6 hPa
MRCP1 - 8540433 - Marcus Hook, PA 41 mi54 min 80°F 83°F1013.5 hPa
TPLM2 - Thomas Point, MD 42 mi18 min N 2.9 G 4.1 75°F 83°F1015.3 hPa (+2.6)72°F

Wind History for Chesapeake City, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Phillips Army Air Field / Aberdeen, MD14 mi3.6 hrsS 77.00 miMostly Cloudy84°F69°F62%1011.4 hPa

Link to 5 minute data for KAPG

Wind History from APG (wind in knots)
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Last 24hr------------------SW4W4CalmNW3W5CalmW7----W3--S8S7SW6S7
1 day ago------------------CalmCalmSW6S11W8SW9S9SW9----SW12SW14S10S9SW3
2 days ago------------------CalmCalmCalmCalmE4NE4SE4S5--CalmSE5SE5S5--S3

Tide / Current Tables for Sassafras River, Betterton, Chesapeake Bay, Maryland
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Thu -- 12:29 AM EDT     1.85 knots Max Flood
Thu -- 03:00 AM EDT     -0.08 knots Slack
Thu -- 05:52 AM EDT     -1.59 knots Max Ebb
Thu -- 06:22 AM EDT     Sunrise
Thu -- 08:20 AM EDT     0.05 knots Slack
Thu -- 12:34 PM EDT     1.83 knots Max Flood
Thu -- 12:53 PM EDT     Moonset
Thu -- 02:53 PM EDT     -0.10 knots Slack
Thu -- 06:20 PM EDT     -2.07 knots Max Ebb
Thu -- 07:49 PM EDT     Sunset
Thu -- 09:45 PM EDT     0.05 knots Slack
Thu -- 11:40 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.81.4-0.1-1.2-1.5-1.6-1.4-0.711.41.61.81.81.4-0.5-1.5-1.9-2.1-2-1.7-1.10.61.2

Weather Map and Satellite Images
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wmap_A
GOES 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 (23,6,7,8)
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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.