Sunday, December8, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
Conestoga, 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 7:12AMSunset 4:41PM Sunday December 8, 2019 9:50 PM EST (02:50 UTC) Moonrise 2:47PMMoonset 3:21AM Illumination 92% Phase: Waxing Gibbous; Moon at 12 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
ANZ530 Chesapeake Bay North Of Pooles Island- 937 Pm Est Sun Dec 8 2019
.small craft advisory in effect from Monday evening through late Monday night...
Rest of tonight..SE winds 5 kt. Waves less than 1 ft. A slight chance of rain late this evening, then rain likely.
Mon..S winds 5 to 10 kt. Waves 1 ft. Rain or drizzle likely. Vsby 1 to 3 nm.
Mon night..SW winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft. Showers likely.
Tue..SW winds 10 to 15 kt...becoming W in the afternoon. Waves 1 to 2 ft. Showers likely.
Tue night..NW winds 5 to 10 kt. Waves 1 ft. Showers.
Wed..NW winds 5 to 10 kt. Waves 1 ft. Rain or snow likely.
Wed night..NW winds 5 to 10 kt. Waves 1 ft.
Thu..NE winds 5 to 10 kt. Waves 1 ft.
Fri..E winds 5 to 10 kt. Waves 1 ft. A chance of showers through the day, then rain likely through the night.
ANZ500 937 Pm Est Sun Dec 8 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. Low pressure will develop over the central united states and lift into the great lakes through Monday. A warm front developing east of this area of low pressure over the carolinas is expected to lift northward across the mid-atlantic during this time. The aforementioned low will drag its trailing cold front through the region Tuesday into Wednesday. Small craft advisories will likely be needed Monday night through Wednesday.


7 Day Forecast for Marine Location Near Conestoga, PA
   Hourly   EDIT   Help
location: 39.88, -76.28     debug


Area Discussion for - State College, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KCTP 090158 AFDCTP

Area Forecast Discussion National Weather Service State College PA 858 PM EST Sun Dec 8 2019

SYNOPSIS. After a fair weather weekend, a volatile and stormy pattern is expected during the second week of December. Temperatures are forecast to surge well-above normal Monday and Tuesday, followed by a sharply colder trend Wednesday into Thursday. The brief warm-up will be accompanied by periods of rain which may end as light snow late Tuesday night. A mid to late week drying trend will likely reverse by next weekend with another complex storm system on the horizon.

NEAR TERM /THROUGH MONDAY/. Clouds increasing this afternoon, as moisture starts to work toward the area from both the west and southeast. The NAM shows some spotty QPF across the far northwest toward 00Z. Low levels are quite dry, so hard to buy into this. But approaching storm system will bring steadily increasing PoPs later tonight into early Monday morning.

Main concern will be the object temperatures toward sunrise on Monday, which may be cold enough in a few spots in the central and NE mountains to bring a brief shot of light freezing rain at the onset. That said, sfc temps generally AOA 32F suggest little to no impact as predominant ptype becomes rain into later Monday morning.

As surface low tracks NE across the Great Lakes on Monday, a mild and wet day will be in store.

SHORT TERM /MONDAY NIGHT THROUGH TUESDAY NIGHT/. Rain will continue Monday night into Tuesday as mild airmass ahead of an approaching cold front remains in place. Highest QPF shifts to mainly the western half where 36hr rain totals will be around an inch.

Then the forecast features a shift from mild and west to colder and wintry later Tuesday into Wednesday, as deep cold upper trof centered over Hudson Bay directs cold air across the central and eastern GLAKS and a flat surface wave exits the eastern seaboard. This will turn precip over to some light snow as the colder air sweeps in Tue into Tue night, with potential for a snow band setting up over the SE that could bring a few inches of snow just before dawn Wednesday.

LONG TERM /WEDNESDAY THROUGH SUNDAY/. It will turn sharply colder midweek as arctic air blasts into the region. Temperatures will be on the decline over the NW Tuesday afternoon (non diurnal over the NW half) and drop quickly Tuesday night areawide. There will be some potential for residual water or slush to freeze up quickly by Wednesday. Highs are forecast to drop by 20-30 degrees between Tuesday and Thursday, with minimum wind chills in the single digits and teens Thursday morning.

Strong 1040+mb high pressure moves NE across the region Thu/Fri followed by another system which could bring rain or mixed precipitation Friday into Saturday.

AVIATION /02Z MONDAY THROUGH FRIDAY/. Low pressure approaching from the midwest will spread lowering cigs and rain into the region late tonight and Monday. Latest model soundings and SREF probability charts support a fairly high confidence of IFR conditions developing between 12Z-15Z over most of the area. The one area of less certainty is over the Laurel Highlands (JST), where a progged southerly flow is unfavorable for low cigs. Strong southwest winds aloft, combined with much lighter surface winds, will set the stage for low level wind shear across much of central Pa late tonight and Monday.

Outlook.

Tue . AM low cigs/shra, mainly N Mtns. Evening light snow possible southeast Pa.

Wed . AM light snow possible southeast Pa.

Thu . No sig wx expected.

Fri . Low cigs possible, especially late.

CTP WATCHES/WARNINGS/ADVISORIES. None.

SYNOPSIS . RXR NEAR TERM . RXR SHORT TERM . DeVoir/RXR LONG TERM . DeVoir/Steinbugl AVIATION . Fitzgerald


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
CHCM2 - 8573927 - Chesapeake City, MD 35 mi51 min S 1 G 1.9 39°F 42°F1028.7 hPa (-0.5)
DELD1 - 8551762 - Delaware City, DE 42 mi51 min Calm G 2.9 42°F 46°F1028.5 hPa (-0.7)
RDYD1 - 8551910 - Reedy Point, DE 44 mi51 min 42°F 44°F1027.9 hPa (-0.7)
BLTM2 - 8574680 - Baltimore, MD 45 mi51 min S 1 G 4.1 44°F 46°F1027.3 hPa (-1.1)
MRCP1 - 8540433 - Marcus Hook, PA 46 mi51 min 41°F 43°F1028 hPa (-1.0)
TCBM2 - 8573364 - Tolchester Beach, MD 46 mi51 min ESE 2.9 G 2.9 42°F 44°F1028.3 hPa (-0.8)
FSNM2 47 mi57 min SE 5.1 G 6
FSKM2 - 8574728 - Francis Scott Key Bridge, MD 48 mi51 min SE 4.1 G 4.1 43°F 1027.9 hPa (-0.8)

Wind History for Chesapeake City, MD
(wind in knots)    EDIT      (on/off)   Help
10
PM
11
PM
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
Last
24hr
--
S1
SE1
SW1
--
--
SE1
--
--
--
N1
E2
SE3
SE4
G8
SE5
SE6
G10
S5
G10
SE3
SE4
G7
E2
SE1
SE2
--
S1
1 day
ago
NW6
G10
N7
G14
N7
G11
N2
NW5
N6
G11
N4
N3
SE2
SW1
S1
W1
NW3
N7
N6
G12
NW7
G10
N7
G10
NW5
NW4
G7
S1
S1
SW1
S1
S1
2 days
ago
W4
W3
SW2
SE1
SE1
SW1
S1
S1
SE1
SW1
SE1
S3
S2
S6
G11
SW6
G9
SW4
SW6
SW5
G9
SW5
G8
S3
G7
SW4
SW4
G7
W2
W4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lancaster, Lancaster Airport, PA17 mi58 minESE 510.00 miOvercast36°F28°F76%1027.6 hPa
Chester County Airport, PA23 mi56 minN 010.00 miPartly Cloudy36°F32°F87%1027.8 hPa

Link to 5 minute data for KLNS

Wind History from LNS (wind in knots)
10
PM
11
PM
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
Last 24hrCalmCalmCalmCalmE4E4CalmE3CalmE3E3E3SE4S8S6S9S10S10S11SE5CalmE6E3SE5
1 day agoNW8NW9N8N8NW6
G15
NW6W4W3W3W4W3W3NW7NW8NW10N7W9NW3NW7NW3CalmCalmCalmCalm
2 days agoNW8S6W4CalmCalmCalmSE3CalmCalmS3E3CalmSW8SW10SW6SW8SW8SW4SW6W3W9W5NW10NW13
G21

Tide / Current Tables for Port Deposit, Susquehanna River, Maryland
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Port Deposit
Click for Map
Sun -- 02:52 AM EST     0.54 feet Low Tide
Sun -- 03:20 AM EST     Moonset
Sun -- 07:11 AM EST     1.75 feet High Tide
Sun -- 07:12 AM EST     Sunrise
Sun -- 02:35 PM EST     -0.18 feet Low Tide
Sun -- 02:46 PM EST     Moonrise
Sun -- 04:40 PM EST     Sunset
Sun -- 08:17 PM EST     2.21 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
10.80.60.50.71.11.51.71.71.51.10.70.40-0.1-0.20.20.71.41.92.22.221.7

Tide / Current Tables for Havre de Grace, Susquehanna River, Maryland (2)
   EDIT      (on/off)   Help   One Week of Data
Havre de Grace
Click for Map
Sun -- 01:24 AM EST     0.44 feet Low Tide
Sun -- 03:20 AM EST     Moonset
Sun -- 06:18 AM EST     1.46 feet High Tide
Sun -- 07:12 AM EST     Sunrise
Sun -- 01:07 PM EST     -0.15 feet Low Tide
Sun -- 02:46 PM EST     Moonrise
Sun -- 04:40 PM EST     Sunset
Sun -- 07:24 PM EST     1.85 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
0.60.50.50.711.31.51.41.20.90.60.2-0-0.1-0.10.30.71.21.61.81.81.71.41.1

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    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 (21,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Dover AFB, DE
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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.