Tuesday, January28, 2020
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Marine Weather and Tides
Chester, PA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 7:11AMSunset 5:16PM Tuesday January 28, 2020 9:02 PM EST (02:02 UTC) Moonrise 9:31AMMoonset 8:57PM Illumination 17% Phase: Waxing Crescent; Moon at 4 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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ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 627 Pm Est Tue Jan 28 2020
Tonight..NW winds 10 to 15 kt. Gusts up to 20 kt this evening. Waves 2 ft or less.
Wed..NW winds 10 to 15 kt. Gusts up to 20 kt late in the morning. Waves 2 ft or less.
Wed night..NE winds 5 to 10 kt. Waves 2 ft or less.
Thu..E winds 5 to 10 kt. Waves 2 ft or less.
Thu night..NE winds 5 to 10 kt. Waves 2 ft or less.
Fri..NE winds 5 to 10 kt, diminishing to around 5 kt in the afternoon. Waves 2 ft or less.
Fri night..SE winds around 5 kt, becoming ne after midnight. Waves 2 ft or less. A chance of rain. A chance of snow after midnight. Vsby 1 to 3 nm.
Sat..N winds around 5 kt. Waves 2 ft or less. A chance of rain. Vsby 1 to 3 nm in the morning.
Sat night..NW winds 5 to 10 kt. Waves 2 ft or less. A chance of rain. A chance of snow after midnight. Vsby 1 to 3 nm.
Sun..W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 ft or less.
Sun night..W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 ft or less.
ANZ400 627 Pm Est Tue Jan 28 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Low pressure near the canadian maritimes and high pressure across the midwest will continue to influence our weather through tonight. A weak cold front will cross our region late tonight into Wednesday. Low pressure will move northeast off the coast early this weekend and then move away Sunday. High pressure looks to return early next week.


7 Day Forecast for Marine Location Near Chester, PA
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location: 39.81, -75.36     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 282337 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 637 PM EST Tue Jan 28 2020

SYNOPSIS. Low pressure near the Canadian Maritimes and high pressure across the Midwest will continue to influence our weather through tonight. A weak cold front will cross our region late tonight into Wednesday. Low pressure will move northeast off the coast early this weekend and then move away Sunday. High pressure looks to return early next week.

NEAR TERM /THROUGH WEDNESDAY/. For the 630 PM update, delayed the clearing through the evening as the cloud deck looks to be in no hurry to dissipate (decent amount of short wave energy moving through with an inversion in place). This is slowing the decrease in the temperatures some thus far, therefore adjusted through this evening to show a bit slower fall off in the temperatures. A few weak streamers coming in off Lake Ontario are still moving into a portion of northeast PA and they may reach the Poconos at times this evening. Therefore, kept a mention of flurries there for this evening. A northwesterly wind will diminish some through the night.

Otherwise, a mid level short wave trough approaching from the northwest is forecast to pass overhead this evening. Drier air is expected to begin arriving into our region from the north in its wake. The drier air should cause the cloud deck to start dissipating from the north and northeast overnight.

SHORT TERM /WEDNESDAY NIGHT THROUGH 6 PM WEDNESDAY/. Another mid level short wave trough is expected to pass overhead on Wednesday morning. It should be followed by a reinforcing shot of dry air. We are expecting a mostly sunny sky for Wednesday along with a northwest wind around 10 mph.

High temperatures should be similar to those of today, mainly in the lower and middle 40s, with readings in the 30s in the elevated terrain. The expected temperatures are about normal for this time of the year.

LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/. Wednesday night through Friday .

Quiet weather persists for this part of the forecast as high pressure will gradually build in from the north. The result will be dry and seasonable conditions . though Friday should be a few degrees warmer than Thursday for most areas. A de-amplifying upper level wave will slide through during the day Thursday and this will bring some cloudy periods during the afternoon but no precip is expected. Friday will also see cloudiness begin to increase in the afternoon well in advance of a system to our south.

Friday night through Tuesday .

The main concern for this period continues to be the potential coastal system for early in the weekend. The 0z deterministic GFS had shifted N/W depicting a stronger storm closer to the coast due to phasing of southern and northern stream upper level energy. However the 12z GFS has backed off on this idea and is now in pretty good agreement with the EC and GEM on a weaker storm staying mainly out to sea. That said, still not highly confident on this scenario.

To start the period Friday evening, high pressure will be departing to the north and east with developing low pressure over the SE coast. In the upper levels there will be a trough extending from the Great Lakes south to the Gulf coast helping support development of this low. The main question will be whether pieces of energy from the southern and northern stream are able to phase which would result in a stronger system tracking close to the coast and potentially bringing the area significant precip. As mentioned, most of the deterministic guidance and GFS ensemble perturbations are suggesting this phasing won't occur meaning the storm will be weaker and track fairly far to the east of the area . giving parts of the area just a brush with lighter precip, if that. However things to note though are that this is still several days out and the upper level energy that will come into play is only just reaching the west coast so hasn't been well sampled by obs yet over successive forecast cycles. Also, as mentioned, 0z GFS had shown a stronger system tracking close to the coast as did some of its ensemble members. For this reason, keep chance POPs in the forecast for most of the region for the period Friday night through Saturday night. Highest POPs are over southern Delmarva and coastal NJ. Another thing to note though, due to lack of cold air in place if we do see precip from this system it would likely be rain or at least a mix of rain/snow near and S/E of the I-95 corridor so a big snowstorm is unlikely. The better chance of accumulating snow would be farther N/W but that's only if the storm tracks close enough.

Regardless of what happens Saturday, system should be pulling away Sunday so it should be a dry end to the weekend with variable cover and highs in the 40s.

The pattern stays progressive into next week so as the aformentioned system continues to move away expect an upper ridge to set up Monday along the east coast bringing sunshine and milder conditions. The next system could bring some showers by next Tuesday as temperatures remain mild.

AVIATION /00Z WEDNESDAY THROUGH SUNDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . VFR ceilings (between 4,000-5,000 feet) this evening will gradually decrease through the overnight. Northwesterly winds diminishing to less than 10 knots. High confidence.

Wednesday . VFR with a few clouds around 5,000 feet. Northwesterly wind around 10 knots. High confidence.

Outlook . Wed night thru Fri . VFR Expected with light winds expected at generally around 5 knots or less.

Fri night/Sat night . MVFR or IFR possible with low CIGS and rain/snow . best chances areas near and S/E of I-95 corridor, especially MIV and ACY.

Sun . becoming VFR. West winds 10-15 knots.

MARINE. A northwest flow will continue over the coastal waters of New Jersey and Delaware for tonight and Wednesday. Speeds are expected to favor the 10 to 20 knot range. Wave heights on our ocean waters should be 2 to 4 feet, with waves on Delaware Bay generally ranging from 1 to 3 feet.

Outlook . Wed thru Fri . sub-SCA with fair weather.

Friday night through Sunday . Winds/seas may start to increase by the Saturday night and Sunday time frame, potentially resulting in SCA conditions by this time. However confidence is low on this.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . None.

Synopsis . Fitzsimmons Near Term . Gorse/Iovino Short Term . Iovino Long Term . Fitzsimmons Aviation . Fitzsimmons/Gorse Marine . Fitzsimmons/Iovino


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRCP1 - 8540433 - Marcus Hook, PA 3 mi51 min 40°F 41°F1014.4 hPa
PHBP1 - 8545240 - Philadelphia, PA 14 mi45 min 40°F 37°F1014.3 hPa
BDSP1 19 mi45 min 39°F 1014.9 hPa
DELD1 - 8551762 - Delaware City, DE 20 mi51 min NNW 2.9 G 5.1 40°F 45°F1014.7 hPa
RDYD1 - 8551910 - Reedy Point, DE 21 mi51 min 40°F 40°F1014.2 hPa
CHCM2 - 8573927 - Chesapeake City, MD 31 mi51 min NNW 2.9 G 6 41°F 40°F1015 hPa
BDRN4 - 8539094 - Burlington, Delaware River, NJ 32 mi87 min 39°F 37°F1013.7 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 35 mi45 min NNW 8.9 G 11 41°F 42°F1015.1 hPa
NBLP1 - 8548989 - Newbold, PA 39 mi45 min NNW 8 G 9.9 38°F 38°F1014.6 hPa

Wind History for Philadelphia, PA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Philadelphia, Philadelphia International Airport, PA8 mi69 minN 810.00 miMostly Cloudy39°F19°F46%1014.6 hPa
Wilmington, New Castle County Airport, DE16 mi72 minNW 310.00 miOvercast38°F26°F62%1014.8 hPa
Philadelphia - Wings Field Airport, PA23 mi68 minNNW 510.00 miOvercast37°F21°F54%1014.2 hPa

Link to 5 minute data for KPHL

Wind History from PHL (wind in knots)
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Last 24hrNW9W9W8NW6NW9NW9NW11NW9NW7NW10
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2 days agoSW8SW8W6SW5SW8SW9W6W6SW6SW8SW6SW6SW8SW13NW11W14W14W14W12W8W8W9W8W11

Tide / Current Tables for Bridgeport, Raccoon Creek, New Jersey, Delaware River, New Jersey
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Bridgeport
Click for Map
Tue -- 02:45 AM EST     4.80 feet High Tide
Tue -- 07:13 AM EST     Sunrise
Tue -- 09:30 AM EST     Moonrise
Tue -- 09:52 AM EST     0.27 feet Low Tide
Tue -- 03:00 PM EST     5.37 feet High Tide
Tue -- 05:15 PM EST     Sunset
Tue -- 08:57 PM EST     Moonset
Tue -- 10:25 PM EST     0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.73.84.64.84.33.42.61.81.10.50.31.12.84.255.454.23.22.41.60.90.30.5

Tide / Current Tables for Philadelphia, Pennsylvania Current
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Philadelphia
Click for Map
Tue -- 12:50 AM EST     1.12 knots Max Flood
Tue -- 04:11 AM EST     -0.00 knots Slack
Tue -- 07:10 AM EST     -1.55 knots Max Ebb
Tue -- 07:12 AM EST     Sunrise
Tue -- 09:30 AM EST     Moonrise
Tue -- 11:10 AM EST     0.00 knots Slack
Tue -- 12:58 PM EST     1.45 knots Max Flood
Tue -- 04:17 PM EST     -0.00 knots Slack
Tue -- 05:14 PM EST     Sunset
Tue -- 07:20 PM EST     -1.60 knots Max Ebb
Tue -- 08:56 PM EST     Moonset
Tue -- 11:50 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.110.80.2-0.8-1.4-1.5-1.4-1.2-0.9-0.20.91.41.10.80.3-0.7-1.4-1.6-1.6-1.3-1.2-0.8

Weather Map
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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 Philadelphia/Mount Holly, PA (21,6,7,8)
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Ground Weather Radar Station Philadelphia, PA
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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 numerous 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.