Thursday, October17, 2019 L-36.com


Marine Weather and Tides
Galena, MD

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
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 7:13AMSunset 6:22PM Thursday October 17, 2019 2:50 PM EDT (18:50 UTC) Moonrise 7:54PMMoonset 9:44AM Illumination 83% Phase: Waning Gibbous; Moon at 19 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- 138 Pm Edt Thu Oct 17 2019
.gale warning in effect until 6 pm edt this evening...
.small craft advisory in effect from 6 pm edt this evening through Friday afternoon...
This afternoon..W winds 20 kt with gusts to 45 kt. Waves 3 ft... Except around 1 ft near the mouth of the susquehanna.
Tonight..NW winds 15 to 20 kt. Gusts up to 35 kt... Diminishing to 25 kt in the late evening and overnight. Waves 2 to 3 ft.
Fri..NW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
Fri night..NW winds 5 to 10 kt. Waves 1 ft or less.
Sat..SW winds around 5 kt. Waves 1 ft or less.
Sat night..S winds 5 kt. Waves less than 1 ft.
Sun..NE winds around 5 kt. Waves flat. A chance of showers.
Mon..SE winds 5 to 10 kt. Waves 1 ft. A chance of showers through the night.
ANZ500 138 Pm Edt Thu Oct 17 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure will slowly move through new england today and high pressure will build overhead tonight through Friday. High pressure will move offshore Saturday and low pressure may impact the area Saturday night into Sunday. High pressure may briefly return for Monday. A small craft advisory may be needed for portions of the waters Friday evening.


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 171652
afdphi
area forecast discussion
national weather service mount holly nj
1252 pm edt Thu oct 17 2019

Synopsis
Low pressure in new england will continue to intensify as it
moves northeast. As this low then moves through the canadian
maritimes tonight into Friday, high pressure will approach our
area from the ohio river valley. This high is expected to move
across the mid- atlantic area Friday night, then offshore
Saturday. An area of low pressure may slip by to our south late
Sunday and Monday, followed by another frontal system by the
middle of next week.

Near term until 6 pm this evening
A breezy day will continue across the area today as strong low
pressure continues to lift across northern new england through
today. With high pressure well to our west, the pressure
gradient between the two remains very tight across the mid
atlantic. Winds above the surface remain in the 35-45 knot
range, and with daytime mixing will lead to frequent 30 to 40
mph wind gusts through the day, with higher peak gusts of 40 to
50 mph at times. The potential for 55 to 60 mph wind gusts has
diminished, so we have converted the high wind warning to a wind
advisory and now everyone is under a wind advisory.

There will remain a chance of showers across portions of
northeast pennsylvania and northern new jersey through the day
due to slightly elevated low-mid level lapse rates, combining
with enhanced low-mid level moisture across the area and some
enhanced lift asssociated with a couple of short waves vorticity
impulses moving across the area. This is leading to some wrap
around lake effect type showers within the northwest flow across
the area around the low to our north. There may also be a few
sprinkles scattered across the area, but where sprinkles occur,
no measureable precipitation will occur.

Temperatures will be on the chilly side today with highs mostly
in the 50s to around 60 under partly to mostly cloudy skies
except in the poconos where it likely won't make it out of the
40s for most areas.

Short term 6 pm this evening through 6 am Friday
The low will move NE from maine into the canadian maritimes
tonight as it slowly weakens. Meanwhile high pressure will build
into the great lakes region. This will keep a fairly good
gradient across the area though it will begin to relax somewhat.

Also, with the loss of diurnal mixing this will lead to winds
and especially gusts diminishing this evening. It will still be
on the breezy side through tonight though with W NW winds 10-15
gusting 15-25 mph. Otherwise, any scattered showers across the
north should also diminish with variable cloud cover persisting
and lows generally in the 40s.

Long term Friday through Wednesday
The mid level pattern is forecast to remain fairly progressive
during the period from Friday through Wednesday.

The strong surface low is expected to be located on the gulf of
saint lawrence on Friday morning and it will continue to move
northeastward. Meanwhile, high pressure located in the great
lakes and the ohio river valley will build to the east. The
center of the high is anticipated to pass through our region on
Saturday before moving out to sea. We are expecting dry weather
for both Friday and Saturday with temperatures running slightly
below normal.

The guidance seems to be coming into better agreement with the
surface low ejecting out of the gulf of mexico over the weekend.

It is forecast to move up the carolina coast on Saturday night
before drifting out to sea. We should be on the northwestern
edge of the clouds and precipitation associated with the system.

We have mentioned a chance of rain from late Saturday night
into Sunday, generally for our counties on the coastal plain.

High pressure and dry conditions should return for Monday.

Strong low pressure is expected to lift from the western great
lakes on Monday into western ontario on Tuesday. The feature is
anticipated to pull a cold front through our region on Tuesday
or Tuesday night. As a result, we are forecasting clouds and a
chance of showers at that time.

Temperatures should be around or slightly above normal from
Sunday through Wednesday.

Aviation 18z Thursday through Tuesday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Today... GenerallyVFR conditions are expected through the day
with broken to at times scattered CIGS mainly in the 4,000-5000
feet range. Some CIGS around 2,500-3,000 feet are possible,
mainly at abe and rdg. Moderate confidence on cigs.

Winds will remain west through the day and consistently gusty
around 25-35 knots, with peak gusts as much as 40-45 knots. High
confidence in winds.

Tonight... Ceilings may lower to MVFR for a time, mainly for
krdg kabe, but confidence low on this. Elsewhere, it should stay
vfr. W NW winds gusting 25-30 knots early then diminishing
overnight. High confidence in winds.

Outlook...

Friday... MainlyVFR. Northwest wind 10 to 15 knots.

Friday night... MainlyVFR. Northwest wind 5 to 10 knots.

Saturday... MainlyVFR. Northwest wind 5 to 10 knots, becoming
southwest.

Saturday night... MainlyVFR. South wind 6 knots or less.

Sunday... MainlyVFR. A chance of rain around kmiv and kacy.

South wind 5 to 10 knots becoming east.

Sunday night... MainlyVFR. East wind 5 to 10 knots, becoming
northeast.

Monday... MainlyVFR. Northeast to east wind 10 to 15 knots.

Marine
Today... The threat for 50 knot wind gusts has diminished, so we
have coverted the storm warning to gale warning, so now everyone
is under a gale warning.

Tonight... Gale warning remains in effect. Conditions lower
below gale force late Thursday night.

Outlook...

Friday... Northwest wind gusting around 25 knots.

Friday night through Saturday night... No marine headlines are
anticipated.

Sunday through Monday... Waves on our ocean waters may build to
4 to 6 feet as low pressure passes to our southeast.

Phi watches warnings advisories
Pa... Wind advisory until 6 pm edt this evening for paz054-055-
060>062-070-071-101>106.

Nj... Wind advisory until 6 pm edt this evening for njz001-007>010-
012>027.

De... Wind advisory until 6 pm edt this evening for dez001>004.

Md... Wind advisory until 6 pm edt this evening for mdz008-012-015-
019-020.

Marine... Gale warning until 6 am edt Friday for anz430-431-450>455.

Synopsis... Fitzsimmons
near term... Fitzsimmons robertson
short term... Fitzsimmons
long term... Iovino
aviation... Fitzsimmons iovino
marine... Fitzsimmons iovino robertson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHCM2 - 8573927 - Chesapeake City, MD 13 mi57 min WNW 12 G 20 60°F 63°F1000.9 hPa
TCBM2 - 8573364 - Tolchester Beach, MD 20 mi57 min W 22 G 28 58°F 63°F1002.8 hPa
DELD1 - 8551762 - Delaware City, DE 23 mi57 min WNW 14 G 22 60°F 60°F999.9 hPa
RDYD1 - 8551910 - Reedy Point, DE 23 mi57 min 59°F 64°F999.7 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 30 mi57 min W 31 G 36 59°F 66°F1000.7 hPa
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 33 mi57 min W 28 G 33 57°F 1001.9 hPa
FSNM2 33 mi63 min W 31 G 37 56°F 1001.7 hPa
BLTM2 - 8574680 - Baltimore, MD 35 mi57 min NW 12 G 21 58°F 69°F1002.7 hPa
CPVM2 36 mi51 min 59°F
44063 - Annapolis 39 mi27 min WNW 21 G 27 59°F 67°F1003 hPa
APAM2 - 8575512 - Annapolis, MD 40 mi51 min 59°F 1003 hPa (+0.7)
MRCP1 - 8540433 - Marcus Hook, PA 41 mi57 min 60°F 65°F999.2 hPa
TPLM2 - Thomas Point, MD 42 mi51 min W 31 G 37 57°F 66°F1004 hPa (+0.0)37°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 mi60 minW 12 G 2610.00 miMostly Cloudy61°F39°F45%1001.7 hPa

Link to 5 minute data for KAPG

Wind History from APG (wind in knots)
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Last 24hrNE3N5W6------------------------W12W15W15
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1 day agoS4S4SW5------------------------CalmCalmS3SE3----SE4E4SW12
G16
2 days ago------------------------------CalmCalmCalmNE5NE7E6Calm--Calm

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 -- 12:55 AM EDT     -0.08 knots Slack
Thu -- 03:36 AM EDT     -1.59 knots Max Ebb
Thu -- 06:03 AM EDT     0.05 knots Slack
Thu -- 07:15 AM EDT     Sunrise
Thu -- 10:02 AM EDT     1.79 knots Max Flood
Thu -- 10:44 AM EDT     Moonset
Thu -- 12:13 PM EDT     -0.01 knots Slack
Thu -- 03:44 PM EDT     -2.18 knots Max Ebb
Thu -- 06:21 PM EDT     Sunset
Thu -- 07:07 PM EDT     0.03 knots Slack
Thu -- 08:52 PM EDT     Moonrise
Thu -- 10:48 PM EDT     2.08 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.3-0.4-1.2-1.5-1.6-1.2-0.311.41.61.81.60.7-1.3-1.9-2.1-2.2-2-1.4-0.51.11.622.1

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (14,3,4,5)
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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.