Tuesday, February18, 2020
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Marine Weather and Tides
Riverton, NJ

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 6:47AMSunset 5:40PM Tuesday February 18, 2020 7:21 AM EST (12:21 UTC) Moonrise 3:27AMMoonset 1:00PM Illumination 27% Phase: Waning Crescent; Moon at 24 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- 629 Am Est Tue Feb 18 2020
Today..S winds around 10 kt. Waves 2 ft or less. A slight chance of rain this morning, then a chance of rain this afternoon with vsby 1 to 3 nm.
Tonight..SW winds 5 to 10 kt, becoming nw after midnight, then increasing to 10 to 15 kt with gusts up to 20 kt late. Waves 2 ft or less. A chance of rain in the evening, then rain likely after midnight. A chance of rain late. Vsby 1 to 3 nm in the late evening and early morning.
Wed..NW winds 10 to 15 kt. Gusts up to 20 kt until late afternoon. Waves 2 ft or less.
Wed night..N winds 5 to 10 kt. Waves 2 ft or less.
Thu..N winds 5 to 10 kt. Waves 2 ft or less.
Thu night..N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Waves 2 ft or less.
Fri..N winds 10 to 15 kt with gusts up to 20 kt, becoming nw 5 to 10 kt in the afternoon. Waves 2 ft or less.
Fri night..W winds 5 to 10 kt. Waves 2 ft or less.
Sat..W winds around 10 kt. Waves 2 ft or less.
Sat night..W winds 5 to 10 kt. Waves 2 ft or less.
ANZ400 629 Am Est Tue Feb 18 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure departs to the north and east today as a trough of low pressure will bring a frontal system through the mid atlantic region. High pressure builds in behind the front and quiet weather ensues. Quiet weather then continues through the rest of the week with below normal temperatures. The next chance for significant precipitation will arrive as a low pressure system early next week.


7 Day Forecast for Marine Location Near Riverton , NJ
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location: 40.01, -75.01     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 180846 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 346 AM EST Tue Feb 18 2020

SYNOPSIS. High pressure departs to the north and east today as a trough of low pressure will bring a frontal system through the Mid Atlantic region. High pressure builds in behind the front and quiet weather ensues. Quiet weather then continues through the rest of the week with below normal temperatures. The next chance for significant precipitation will arrive as a low pressure system early next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Low pressure currently over Lake Michigan will move northeast today into SE Ontario and then Quebec. At the mid-lvls the primary piece of shortwave energy associated this feature will also pivot well north of the area today. Warm advection (initially aloft) is beginning to overspread the area this morning as southerly flow increases ahead of the aforementioned low. Given the northward displacement of the upper-lvl dynamics and initially dry profiles expect the WAA driven precipitation this morning and early afternoon to be fairly light and spotty. The best potential for measurable precipitation (maybe up to a couple tenths of water) will be in the upslope favored areas of eastern PA and NW NJ (aided by some modest FGEN/convergence along the terrain). Could see some snow in the higher elevations of the Poconos this morning at precipitation onset, but think the heavier precipitation should not get going until profiles have warmed, holding accumulations to under an inch.

Although there will be considerable cloud cover today given the overunning setup, the lack of a well-defined secondary low should allow most of the area to get into the warm sector by this afternoon. Consequently expect most areas along and east of the fall line to reach the 50s (probably upper 50s to near 60s in southern NJ and Delmarva) while temperatures will generally be in the 40s elsewhere (Sussex index looks to be about 20 degrees today).

SHORT TERM /6 PM THIS EVENING THROUGH 6 AM WEDNESDAY/. The surface trough axis and cold front will pass over the area this evening, with additional rainfall possible in the vicinity of the front. Guidance has trended towards generating some weak waves along the southern end of the front which may slow the frontal progression somewhat. Consequently could see precipitation linger past midnight (potentially even into the pre-dawn hours Wednesday morning) in Delmarva and southern NJ and could even see a modest uptick in precipitation in these located due to convergence along the aforementioned wave and some-localized 925-850 FGEN. Clouds will likely not begin to push out (from NW-SE) until Wednesday morning, and these clouds combined with elevated post frontal winds should keep low temperatures 5-10 degrees above climo.

LONG TERM /WEDNESDAY THROUGH MONDAY/. Expect generally quiet weather over the rest of this week heading into the weekend. Behind the front that crosses through the region on Tuesday night/Wednesday morning expect strong zonal flow to setup across the eastern CONUS with deep high pressure building across the Mid-Atlantic. With high pressure aloft and deep subsidence at the surface anticipate relatively light flow and strong radiational cooling each night. The latter portion of this week will feature temps below normal with lows in the teens and highs in the 30s. The zonal flow breaks down as an upper level trough tracks through on Friday however, the high pressure system still remains over the area so the only real noticeable weather change will be the warm air advection pushing into the region.

The dry weather continues through the weekend with the next potential system arriving early next week. Deterministic guidance leaves a bit to be desired with regards to consistency in timing however the general idea is that we will see a low pressure system bring light rain to the region.

AVIATION /09Z TUESDAY THROUGH SATURDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Today . Expect MVFR CIGS to spread in around/after 12Z. After the this initial push of lower CIGS flight conditions could fluctuate considerably through the afternoon, potentially dipping to IFR at times while also having the ability to come up to VFR. Scattered rain showers will also be possible. Initial easterly-southeasterly winds 5-10 kts will shift more southerly by this afternoon. High confidence in a period of MVFR conditions this morning and winds, lower confidence in flight category evolution through the day.

Tonight . A period of rain and lowered flight categories are likely this evening as a cold front moves through. Behind the front flight categories should improve back to VFR with all sites VFR by 09Z. Westerly winds 5-10kts will shift to the Northwest around 10-15 kts after about midnight. High confidence in winds and lowered flight categories in the evening, lower confidence in exact timing of recovery.

Outlook. Wednesday . Rapidly improving flight conditions from MVFR ceilings to VFR by mid morning. Lingering showers should clear early in the morning. Northwest winds from 5 to 10 knots with gusts from 15 to 20 knots. High confidence.

Thursday through Saturday . VFR with northwesterly winds from 5 to 10 knots. High confidence.

MARINE. Today . Marginal SCA conditions expected for the coastal waters off New Jersey as southeasterly winds gust 20-25 knots with seas 4-5 feet.

Tuesday night . Winds/seas likely diminishing for a time in the evening before increasing late at night in the wake of a cold front as winds shift to NW with gusts up to 20-25 knots once again likely.

Outlook .

Wednesday through Thursday . Northwest winds continue behind the frontal system for Wednesday and Thursday. Speeds will generally be around 10 to 15 knots with gusts around 20 knots. Seas generally 2 to 4 feet.

Thursday night through Friday . Northwesterly winds become northerly 10 to 20 knots with gusts up to 25 knots possible Friday afternoon. Seas around 1 to 3 feet.

Saturday . Northerly winds shift back to westerly through the day. Wind speeds around 10 to 15 knots with gusts around 20 knots. Seas around 2 to 3 feet.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Small Craft Advisory from 9 AM this morning to 9 PM EST this evening for ANZ452-453. Small Craft Advisory until 9 PM EST this evening for ANZ450- 451.

Synopsis . Deal Near Term . Carr Short Term . Deal Long Term . Deal Aviation . Carr/Deal Marine . Carr/Deal


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BDSP1 4 mi52 min 38°F 1025.8 hPa
BDRN4 - 8539094 - Burlington, Delaware River, NJ 9 mi46 min 38°F 38°F1025.4 hPa
PHBP1 - 8545240 - Philadelphia, PA 9 mi52 min 39°F 40°F1025.1 hPa
NBLP1 - 8548989 - Newbold, PA 16 mi58 min SE 1.9 G 5.1 39°F 38°F1026.5 hPa
MRCP1 - 8540433 - Marcus Hook, PA 26 mi58 min 39°F 42°F1025.1 hPa
DELD1 - 8551762 - Delaware City, DE 43 mi52 min NNE 4.1 G 5.1 38°F 46°F1025 hPa
RDYD1 - 8551910 - Reedy Point, DE 43 mi58 min 38°F 41°F1024.5 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 44 mi52 min ENE 7 43°F 1026 hPa40°F

Wind History for Philadelphia, PA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Philadelphia, Northeast Philadelphia Airport, PA6 mi2.5 hrsNE 79.00 miFair38°F32°F79%1026.8 hPa
Mount Holly, South Jersey Regional Airport, NJ10 mi88 minENE 310.00 miFair37°F34°F89%1026.3 hPa
Philadelphia, Philadelphia International Airport, PA15 mi2.5 hrsENE 57.00 miMostly Cloudy36°F32°F86%1026.1 hPa
Philadelphia - Wings Field Airport, PA16 mi1.8 hrsE 510.00 miMostly Cloudy35°F32°F89%1026.4 hPa
Trenton, Mercer County Airport, NJ21 mi89 minENE 510.00 miFair36°F30°F79%1026 hPa
Mcguire Air Force Base, NJ22 mi2.4 hrsE 68.00 miMostly Cloudy37°F36°F98%1025.8 hPa
Doylestown, Doylestown Airport, PA23 mi2.5 hrsN 010.00 miA Few Clouds36°F28°F73%1026 hPa

Link to 5 minute data for KPNE

Wind History from PNE (wind in knots)
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Last 24hrN6CalmNE7NE7N6CalmN4N4NW5CalmE5SE3CalmCalmE3Calm--NE3NE7E6E6E7NE7NE7
1 day agoSE3CalmS3SW5SW9W5SW8SW6SW7SW7SW5S3CalmCalmCalmCalmCalmCalmCalmCalmCalmNW3N5NW5
2 days ago--N4CalmCalmCalmCalm5SW63SW10SW9SW8S6S53SW5SW3SW53S43CalmSE3Calm

Tide / Current Tables for Pompeston Creek, New Jersey
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Pompeston Creek
Click for Map
Tue -- 03:26 AM EST     Moonrise
Tue -- 04:35 AM EST     -0.03 feet Low Tide
Tue -- 06:49 AM EST     Sunrise
Tue -- 09:55 AM EST     6.23 feet High Tide
Tue -- 01:00 PM EST     Moonset
Tue -- 05:21 PM EST     0.09 feet Low Tide
Tue -- 05:38 PM EST     Sunset
Tue -- 10:22 PM EST     5.44 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.62.71.910.20.11.43.14.65.86.25.854.23.32.31.10.20.41.73.14.45.35.3

Tide / Current Tables for Philadelphia, Pennsylvania Current
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Philadelphia
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Tue -- 12:14 AM EST     -1.86 knots Max Ebb
Tue -- 03:27 AM EST     Moonrise
Tue -- 04:14 AM EST     0.00 knots Slack
Tue -- 06:15 AM EST     1.59 knots Max Flood
Tue -- 06:50 AM EST     Sunrise
Tue -- 09:42 AM EST     -0.00 knots Slack
Tue -- 01:00 PM EST     -1.71 knots Max Ebb
Tue -- 01:00 PM EST     Moonset
Tue -- 02:17 PM EST     -1.65 knots Min Ebb
Tue -- 02:53 PM EST     -1.66 knots Max Ebb
Tue -- 05:11 PM EST     0.00 knots Slack
Tue -- 05:39 PM EST     Sunset
Tue -- 08:20 PM EST     1.35 knots Max Flood
Tue -- 10:13 PM EST     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.8-1.8-1.5-1.2-0.311.61.51.40.8-0.3-1.2-1.6-1.7-1.7-1.7-1.3-0.20.81.21.31.20.3-0.9

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 (7,2,3,4)
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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.