Saturday, July4, 2020
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Marine Weather and Tides
Folcroft, 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 5:36AMSunset 8:34PM Saturday July 4, 2020 10:42 PM EDT (02:42 UTC) Moonrise 7:25PMMoonset 3:53AM Illumination 100% Phase: Full Moon; Moon at 14 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- 1002 Pm Edt Sat Jul 4 2020
Overnight..S winds 5 to 10 kt. Waves 2 ft or less.
Sun..S winds 5 to 10 kt. Waves 2 ft or less. Scattered showers early in the afternoon.
Sun night..SW winds 5 to 10 kt. Waves 2 ft or less.
Mon..SW winds 5 to 10 kt, becoming S in the afternoon. Waves 2 ft or less.
Mon night..S winds 5 to 10 kt. Waves 2 ft or less.
Tue..S winds 5 to 10 kt. Waves 2 ft or less. A chance of showers in the afternoon.
Tue night..S winds 5 to 10 kt. Waves 2 ft or less. A chance of showers in the evening.
Wed..S winds 5 to 10 kt. Waves 2 ft or less.
Wed night..S winds 5 to 10 kt. Waves 2 ft or less.
Thu..S winds 5 to 10 kt. Waves 2 ft or less.
Thu night..S winds 5 to 10 kt. Waves 2 ft or less.
ANZ400 1002 Pm Edt Sat Jul 4 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A cold front remains situated off to our south and west this afternoon. A secondary cold front will attempt to work southward into the region early Monday, before stalling and lifting back northward. A summer-like pattern persists through the week with afternoon showers and Thunderstorms and above average temperatures. A coastal low looks to move out of the southeast and into the mid- atlantic into the weekend.


7 Day Forecast for Marine Location Near Folcroft borough, PA
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location: 39.89, -75.27     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 050148 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 948 PM EDT Sat Jul 4 2020

SYNOPSIS. A cold front remains situated off to our south and west this afternoon. A secondary cold front will attempt to work southward into the region early Monday, before stalling and lifting back northward. A summer-like pattern persists through the week with afternoon showers and thunderstorms and above average temperatures. A coastal low looks to move out of the Southeast and into the Mid- Atlantic into the weekend.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. Convection has been quite sparse and quite weak across the region this evening. With nocturnal stabilization in progress, coverage of convection has diminished to the point where PoPs have been reduced to sub-mentionable. Though cannot rule out a stray shower through the overnight hours, think the potential is simply too low for inclusion at this point.

Main forecast concern the rest of the overnight is patchy fog development. With proximity to minor vorticity maxima aloft, think potential for denser fog is quite localized, especially given the sparse coverage of precipitation today. Nevertheless, recent surface observations suggest fog will be present overnight as winds become calm.

Low temperatures should be slightly above seasonal averages.

SHORT TERM /6 AM SUNDAY MORNING THROUGH MONDAY NIGHT/. On Sunday, a lee-side surface trough will likely be in place across the northeast and Mid Atlantic states. As a couple of weak short wave/vorticity impulses move across the area, they could help lead to a few isolated/scattered showers or thunderstorms. PW values decrease from north to south through the day, but will remain 1.25- 1.50 inches across southern New Jersey, Delaware, and eastern Maryland through the day, so these areas will have a better chance of seeing any heavier rainfall.

The surface trough will drift offshore through the evening hours, and PW values will continue to lower to 1.00-1.25 inches. With no strong short wave/voticity impulses overnight, a dry forecast is expected overnight Sunday.

On Monday into Monday night, another backdoor front approaches from the north and settles across the area, while moisture increases as PW values increase to 1.50-1.75 inches. A couple of short waves/vorticity impulses are forecast to move across the area. This could lead to a chance of scattered or isolated showers and thunderstorms through the day and into the evening hours on Monday.

LONG TERM /TUESDAY THROUGH SATURDAY/. A relatively warm upcoming week as ridging slowly begins to take hold across the eastern U.S. Temperatures look to average A slow- moving mid-level disturbance will trek across the Southeast late week, possibly impacting our region into the weekend as a coastal low.

A quiet start to the extended Tuesday as ridging expands eastward across the eastern U.S. ahead of a developing synoptic trough across the West Coast. The stalled fronts mentioned previously mentioned in the the synopsis above will begin to retreat northward as a warm front. To our north, a potent shortwave and surface low look to move across central Canada into the Hudson Bay region. Meanwhile, a southern stream perturbation will work its way across the Gulf Coast as surface low pressure begins to form. Widely scattered showers and thunderstorms both afternoons appear likely with the front in the vicinity and forecast SB CAPE values from 1000 to potentially 3000 J/kg. Highs will be seasonably warm in the upper 80s to low 90s.

The aforementioned low to our south looks to enter the Carolinas Thursday, but this is where model discrepancy becomes more noticeable. The GFS takes the center inland across the Piedmont, while the EC keeps the center off the coast. Another factor of question is how this surface low will interact with an approaching shortwave trough across the Great Lakes Friday into Saturday. If the GFS prediction has its way, a wetter forecast looks to take place for our region, but if the low stays well enough offshore, we may remain sandwiched between both features, going mostly unscathed.

Am somewhat more inclined to believe the EC at this time given previous environmental support for cut-off lows this year, but kept wide chance PoPs for the region through the weekend. Wouldn't call it a washout, but will want to monitor the forecast as model agreement on storm track solidifies. Highs look to remain seasonable in the mid to upper 80s across the region Friday and Saturday.

AVIATION /02Z SUNDAY THROUGH THURSDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . Mainly VFR. Patchy fog is expected to occur at some of the terminals (best chances at RDG/ABE/TTN and MIV/ACY). Light and variable winds. Low confidence with patchy fog; otherwise, high confidence.

Sunday . Mainly VFR. A slight chance of showers/storms, but most terminals will likely be unaffected. Mostly variable winds under 10 kt, but a predominant west wind may develop during the afternoon. Moderate confidence.

Sunday night . Mainly VFR with light and variable winds. Moderate confidence.

Monday-Monday night . Mostly VFR. A chance of showers and thunderstorms, especially in the afternoon and evening which may temporarily lead to lower conditions. West-southwest winds 5-10 knots during the day, become light out of the south-southeast during the evening and overnight.

Outlook .

Tuesday through Thursday . Prevailing VFR with temporary restrictions with afternoon showers and thunderstorms. South to southeasterly winds from 5 to 10 knots with gusts to 15 knots. Higher gusts in stronger thunderstorms possible. Moderate confidence.

MARINE. Tonight-Monday night . Conditions expected to remain below advisory levels through the period, although winds could gust around 20 knots at times. There is a chance of showers and thunderstorms each day which could lead to locally higher winds and waves.

Outlook .

Tuesday through Thursday . Sub-advisory conditions are expected to persist through this period with southeasterly winds from 10 to 15 knots and gusts around 15 knots. A few gusts to near 20 knots possible at times each afternoon. Scattered showers and thunderstorms each afternoon may yield temporary gusts above 25 knots. Seas ranging from 2 to 3 feet.

Rip Currents .

There is a low risk for the development of dangerous and life threatening rip currents today and Sunday, although the risk could become moderate late Sunday afternoon if southerly winds are a bit stronger than currently forecasted.

TIDES/COASTAL FLOODING. High tide for coastal New Jersey and Delaware will occur through midnight. Forecast appears on track, so haven't made any changes from the afternoon forecast. It still appears that widespread tidal flooding will be confined to coastal areas of DE and southern NJ as well as much of the Delaware Bay. For the tidal portions of the Delaware River and coastal locations in Central and northern NJ, minor flooding should be very localized.

For the high tide Sunday evening: With winds shifting slightly off shore, it appears that only spotty minor flooding is possible at this time.

Tidal flooding is not expected on the upper eastern shore of Chesapeake Bay.

EQUIPMENT. The NOAA Weather Radio All Hazards broadcast from Hibernia Park, PA (WNG704) remains off the air until further notice due to damage to the antenna during the June 3 derecho.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . Coastal Flood Advisory until midnight EDT tonight for NJZ021>025. DE . Coastal Flood Advisory until midnight EDT tonight for DEZ002>004. MD . None. MARINE . None.

Synopsis . Davis Near Term . CMS/Robertson Short Term . Robertson Long Term . Davis Aviation . CMS/Davis Marine . Davis/Robertson Tides/Coastal Flooding . Johnson Equipment . WFO PHI


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PHBP1 - 8545240 - Philadelphia, PA 7 mi54 min 81°F 81°F1012.9 hPa
MRCP1 - 8540433 - Marcus Hook, PA 10 mi54 min 81°F
BDSP1 12 mi54 min 81°F 1013.6 hPa
BDRN4 - 8539094 - Burlington, Delaware River, NJ 25 mi66 min S 4.1 G 6 79°F 82°F1013 hPa
DELD1 - 8551762 - Delaware City, DE 27 mi54 min SSE 4.1 G 6 77°F 78°F1013.4 hPa
RDYD1 - 8551910 - Reedy Point, DE 28 mi54 min 82°F
NBLP1 - 8548989 - Newbold, PA 32 mi54 min SSW 5.1 G 7
CHCM2 - 8573927 - Chesapeake City, MD 38 mi54 min SE 2.9 G 4.1 83°F
SJSN4 - 8537121 - Ship John Shoal, NJ 41 mi54 min 76°F 1014.1 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 49 mi72 min NE 2.9 72°F 1015 hPa69°F

Wind History for Philadelphia, PA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Philadelphia, Philadelphia International Airport, PA1 mi48 minS 610.00 miPartly Cloudy79°F70°F74%1013.5 hPa
Philadelphia - Wings Field Airport, PA17 mi67 minSSE 37.00 miFair with Haze73°F68°F86%1013.5 hPa
Philadelphia, Northeast Philadelphia Airport, PA19 mi48 minSSE 47.00 miFair82°F64°F56%1013.7 hPa
Mount Holly, South Jersey Regional Airport, NJ23 mi48 minN 010.00 miFair76°F70°F82%1013.5 hPa
Wilmington, New Castle County Airport, DE23 mi51 minSSE 910.00 miFair76°F71°F85%1013.6 hPa

Link to 5 minute data for KPHL

Wind History from PHL (wind in knots)
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Last 24hrE10NE4S3NE4NE6NE6E7E7E6SE6E4E5E6NE3E5E7SE6SE5S6SE3S6SE5S6S6
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Tide / Current Tables for Tinicum National Wildlife Refuge, Darby Creek, Pennsylvania
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Tinicum National Wildlife Refuge
Click for Map
Sat -- 12:58 AM EDT     6.77 feet High Tide
Sat -- 04:52 AM EDT     Moonset
Sat -- 05:38 AM EDT     Sunrise
Sat -- 08:28 AM EDT     0.22 feet Low Tide
Sat -- 01:24 PM EDT     5.59 feet High Tide
Sat -- 08:24 PM EDT     Moonrise
Sat -- 08:32 PM EDT     Sunset
Sat -- 08:34 PM EDT     0.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.36.86.35.44.53.72.71.50.40.41.73.24.65.55.44.63.72.92.21.40.60.61.93.7

Tide / Current Tables for Philadelphia, Pennsylvania Current
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Philadelphia
Click for Map
Sat -- 01:40 AM EDT     -0.00 knots Slack
Sat -- 04:50 AM EDT     -1.93 knots Max Ebb
Sat -- 04:52 AM EDT     Moonset
Sat -- 05:37 AM EDT     Sunrise
Sat -- 09:08 AM EDT     0.00 knots Slack
Sat -- 12:03 PM EDT     1.58 knots Max Flood
Sat -- 02:08 PM EDT     -0.01 knots Slack
Sat -- 04:59 PM EDT     -1.92 knots Max Ebb
Sat -- 08:24 PM EDT     Moonrise
Sat -- 08:32 PM EDT     Sunset
Sat -- 09:04 PM EDT     0.00 knots Slack
Sat -- 11:12 PM EDT     1.83 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.60.9-0.4-1.4-1.8-1.9-1.8-1.8-1.4-0.211.51.61.30.2-1.1-1.7-1.9-1.8-1.5-1.1-0.11.21.8

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 (22,6,7,8)
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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.