Tuesday, October15, 2019 L-36.com


Marine Weather and Tides
Chambersburg, PA

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 7:19AMSunset 6:33PM Tuesday October 15, 2019 6:51 AM EDT (10:51 UTC) Moonrise 6:50PMMoonset 7:49AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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
    EDIT      (on/off)   Help
ANZ538 Patapsco River Including Baltimore Harbor- 437 Am Edt Tue Oct 15 2019
Rest of the overnight..N winds 5 kt. Waves flat.
Today..E winds 5 kt. Waves flat.
Tonight..SE winds 5 to 10 kt. Waves 1 ft.
Wed..S winds 5 to 10 kt. Waves 1 ft. Rain.
Wed night..W winds 10 to 15 kt with gusts to 30 kt. Waves 2 ft.
Thu..W winds 15 to 20 kt with gusts to 30 kt. Waves 2 ft.
Thu night..NW winds 10 to 15 kt with gusts to 25 kt. Waves 1 to 2 ft.
Fri..NW winds 5 to 10 kt. Waves 1 ft.
Sat..S winds around 5 kt. Waves 1 ft.
ANZ500 437 Am Edt Tue Oct 15 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will move offshore today. Low pressure will track through the southeastern conus tonight and it will intensify as it moves off the mid-atlantic coast Wednesday. A cold front will pass through the waters late Wednesday and high pressure will build overhead for Thursday and Friday. High pressure will move offshore during the weekend. Small craft advisories will likely be needed Wednesday night through Friday, with gales possible Wednesday night into Thursday.


7 Day Forecast for Marine Location Near Chambersburg , PA
   Hourly   EDIT   Help
location: 39.93, -77.66     debug


Area Discussion for - State College, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kctp 150904
afdctp
area forecast discussion
national weather service state college pa
504 am edt Tue oct 15 2019

Synopsis
High pressure will slide east of the region today followed by a
strong front will move through on Wednesday. Cooler and
blustery weather will follow for the latter half of the work
week. The upcoming weekend looks dry with temperatures
moderating to near normal or even slightly above normal.

Near term through tonight
Night time blended imagery shows the valleys filling with fog,
as they often do at this time of year.

Fog will burn off to a bright sky by mid morning. A generally
light wind early will turn to the south as the high pressure
area shifts off the coast. Highs in the 50s to mid 60s will be
near or slightly above seasonal normals.

A potent occlusion cold front will be approaching the region,
with the first showers likely reaching our western zones before
sunrise Wednesday. The increasing clouds and southerly flow
will keep low temperatures mild for the time of year in the 40s.

Short term Wednesday
A pretty drastic change in the weather will take place with the
passage of a strong frontal system Wednesday. Models differ
slightly in timing, but a consensus suggests the occlusion will
be moving through central pa around mid day. From there
cyclogenesis is likely along the coastal plain near the triple
point. The storm is predicted to bomb away into a strong gale up
along the new england coast tomorrow night and Thursday.

For the local area we will see a widespread rain on the order of

50" - 1 00" on average. If the coastal storm can deepen quicker
and further south, eastern areas could see heavier amounts of
rain. Most of the rain will be in the morning into early
afternoon, before tapering to showers in the NW flow behind the
low.

Long term Wednesday night through Monday
Thursday promises to provide an early season taste of things to
come. As the coastal storm bombs out over new england, a strong
w-nw flow will develop on the back side. Chilly rain showers
will be common over western and northern areas with wind gusts
in the 30-40 mph range, borderline advisory, throughout the
day. 850 temps will drop to zero or even slightly colder over
the nw. I didn't include the mention of snow with this
forecast, but a few wet snowflakes over the higher elevations
would not be a surprise as colder air gets drawn down into pa.

The coldest air aloft should pass during the day Friday leading
to dwindling chances for scattered showers.

Fair weather Saturday will last into Sunday as high pressure
moves off to our south and eventually southeast. This will
allow temperatures to moderate as we move into easily next
week.

Aviation 08z Tuesday through Saturday
Clear skies and light winds under high pressure will promote
valley fog across north-central pa early this morning. Kipt is
most likely to be impacted with lifr conditions and vis cig near
airfield mins. Fog will dissipate by 15z giving way to
widespreadVFR. High clouds will increase from the west into
tonight. A moist southeast flow may result in low clouds
developing across central and eastern portions of the airspace
late tonight into early Wednesday morning.

Outlook
Wed... A period of rain and reduced CIGS vis likely.

Thu... Gusty wnw winds. Am low CIGS possible W mtns.

Fri... Am low CIGS possible W mtns.

Sat... Am valley fog possible.

Ctp watches warnings advisories
None.

Synopsis... La corte
near term... La corte
short term... La corte
long term... La corte
aviation... Fitzgerald steinbugl


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BLTM2 - 8574680 - Baltimore, MD 73 mi51 min N 4.1 G 6 56°F 70°F1020.3 hPa (+1.1)
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 78 mi51 min NW 4.1 G 5.1 57°F 1020.6 hPa (+1.0)
WASD2 - 8594900 - Washington, DC 81 mi51 min Calm G 1 54°F 69°F1020.8 hPa (+1.0)

Wind History for Baltimore, MD
(wind in knots)    EDIT      (on/off)   Help
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
NE3
NE1
NW2
W1
G4
SW4
NW5
G11
N4
G8
NW6
G11
NW4
N4
NW4
G9
W4
SW2
W1
NW1
NW2
G5
N4
G7
E3
N2
N2
N2
N2
W1
N4
1 day
ago
NE7
G10
NE8
G11
NE6
G9
NE8
G11
E5
G8
SE5
S4
S3
S2
S4
S2
G5
S2
E6
SE6
E5
G8
E5
E4
E3
NE2
NE4
NE3
W1
NW1
N3
2 days
ago
N3
NE3
NE1
S4
SE4
SE4
S3
S3
G6
S4
S5
S4
SW2
NW4
NW3
W2
N5
N5
G8
N11
NE9
N8
G12
NE8
N4
NE5
G10
N4
G8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hagerstown, Washington County Regional Airport, MD16 mi58 minN 010.00 miFair47°F37°F69%1022 hPa

Link to 5 minute data for KHGR

Wind History from HGR (wind in knots)
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrS5S6SE4SE5S6SW9SW10
G17
SW14
G20
W11W10
G17
W11
G19
W8NW6CalmN3N3NW3CalmCalmCalmCalmN5NW5Calm
1 day agoE4E5NE6CalmCalmCalm3S6S5S5SE8CalmSE3S3CalmE3E5NE5CalmCalmCalmNW3CalmSE3
2 days agoCalmCalmCalmCalmW3W3W6S4SW4S4NW3W5W6CalmW4NW4NW6NW3CalmCalmNW4CalmCalmSE4

Tide / Current Tables for Middle Branch, Baltimore Harbor, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Middle Branch
Click for Map
Tue -- 03:12 AM EDT     0.54 feet Low Tide
Tue -- 07:16 AM EDT     Sunrise
Tue -- 08:30 AM EDT     1.26 feet High Tide
Tue -- 08:44 AM EDT     Moonset
Tue -- 02:45 PM EDT     0.27 feet Low Tide
Tue -- 06:27 PM EDT     Sunset
Tue -- 07:47 PM EDT     Moonrise
Tue -- 09:10 PM EDT     1.55 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
10.80.60.50.60.70.91.11.21.21.10.90.70.40.30.30.40.60.91.21.41.51.51.4

Tide / Current Tables for Middle Branch, Baltimore Harbor, Patapsco River, Maryland
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
       (on/off)   Help Weather Map
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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for State College, PA (6,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Sterling, VA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.