Saturday, January23, 2021
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Marine Weather and Tides
Croydon, PA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:13AMSunset 5:09PM Saturday January 23, 2021 12:22 PM EST (17:22 UTC) Moonrise 1:50PMMoonset 3:46AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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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ANZ338 NEw York Harbor- 1022 Am Est Sat Jan 23 2021
.small craft advisory in effect through Sunday morning...
Today..NW winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft.
Tonight..NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Waves around 2 ft.
Sun..NW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft.
Sun night..NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 1 ft or less.
Mon..N winds around 5 kt. Waves 1 ft or less.
Mon night..NE winds 5 to 10 kt. Waves 1 ft or less. Chance of snow in the evening, then snow likely after midnight. Vsby 1 to 3 nm.
Tue..NE winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less. Snow likely. Vsby 1 to 3 nm.
Tue night..N winds around 10 kt. Waves around 2 ft. Chance of snow. Vsby 1 to 3 nm.
Wed..N winds 5 to 10 kt. Waves around 2 ft.
Wed night..N winds 5 to 10 kt. Waves 1 ft or less.
ANZ300 1022 Am Est Sat Jan 23 2021
Synopsis for the long island waters and new york harbor.. Low pressure slowly weakens over the canadian maritimes this weekend, while high pressure builds in from the west. The high weakens Sunday night and Monday as low pressure approaches. The low passes south of the area Monday night into Tuesday night. High pressure returns Wednesday through Friday. Another low may move south of the region Thursday.


7 Day Forecast for Marine Location Near Croydon, PA
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location: 40.08, -74.88     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 230904 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 404 AM EST Sat Jan 23 2021

SYNOPSIS. High pressure centered in northern Illinois this morning will drift southeastward and it should pass off the North Carolina coast on Sunday evening. Weakening low pressure is forecast to move from Missouri on Monday to the upper Ohio River Valley on Tuesday, as a secondary low slides off the Middle Atlantic coast. High pressure is expected to nudge into our region from the north on Wednesday. Another low is anticipated to pass off the North Carolina coast on Thursday before moving farther out to sea. High pressure approaching from the west is expected to build across our region on Friday and Saturday.

NEAR TERM /THROUGH TONIGHT/. A cold day is in store along with a gusty wind. A northwesterly flow regime from the Midwest to the Northeast and Mid-Atlantic regions is forecast to amplify some in the East today. This is due to strong short wave energy carving out more of a trough today in the Northeast to Mid-Atlantic. Meanwhile, surface low pressure is forecast to be centered in the Canadian Maritimes with surface high pressure building east from the Midwest and Ohio Valley.

Our region will be between the two aforementioned surface systems resulting in a tight pressure gradient. Cold air advection increased last night and that continues for much of today, resulting in high temperatures in the 20's and 30's. There will be a notable breeze making it feel even colder, with wind chill values in the teens to lower 20s for the balance of the day (0-5F in the higher terrain of the Poconos). The forecast soundings indicate a favorable setup for deeper mixing especially by midday with winds of 30-40 mph available to mix down. The strongest winds may occur from mid-morning through mid-afternoon, then some relaxing of the pressure gradient and the cold air advection weakening some will result in less mixing late in the afternoon and early evening. As a result, the winds should settle as we start this evening.

Northwest flow today will direct lake effect snow bands toward especially northeastern Pennsylvania, however the advection of much drier air and a gradual lowering inversion should limit the southeastward extent of the bands (a few flurries still around very early this morning in parts of the area). Any snow showers or flurries particularly in the Pocono region may end up being confined to this morning as a result.

For tonight, surface high pressure builds closer however it is not forecast to settle right over our region and therefore we remain in an area of an established pressure gradient. Despite this, at least some decouple of the winds should occur tonight especially outside of the higher terrain as an inversion strengthens some. The extent of the winds will have an impact on temperature trends tonight, but either way many areas are forecast to drop into the teens tonight (wind chills still in play with some wind continuing).

SHORT TERM /SUNDAY THROUGH TUESDAY/. Surface high pressure sliding to our southwest and south will likely bring cold dry weather to our region for Sunday and Sunday night. Developing warm advection aloft is expected to bring and increase in mid and high level clouds from Sunday afternoon into Sunday evening.

An initial mid level short wave is forecast to be ejected out of the southwestern states over the weekend. It should reach the central Great Plains on Monday and the eastern Great Lakes late on Tuesday. A weakening surface low is expected to precede the feature with a secondary low developing in the Virginia and North Carolina vicinity before sliding off the coast and out to sea on Monday night and Tuesday.

Precipitation in advance of the complex system should begin to spread into our region from the southwest on Monday afternoon. The precipitation will likely continue into Monday night before gradually losing support aloft on Tuesday and and slowly dissipating.

The forecast temperature profiles continue to suggest mostly snow from the Interstate 78 Corridor northward, mainly rain for the Delmarva south of the canal and far southern New Jersey, and a wintry mix for areas between the two.

The system is not anticipated to have a great deal of moisture associated with it, limiting the snow and sleet accumulations. It appears as though most locations in eastern Pennsylvania, New Jersey and northern Delaware that receive snow will fall in the 1 to 3 inch range.

LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/. A northerly wind is expected to bring an end to any lingering precipitation on Tuesday night, with dry weather and seasonable temperatures for Wednesday.

There remains a fair amount of variability in the way that the different guidance solutions are handling the main mid level trough coming out of the southwestern states on Tuesday. This continues to have implications on the eventual strength and track of another surface low that is forecast to pass off the North Carolina coast on Thursday. We will keep the mention of a chance of wintry precipitation for eastern Maryland, Delaware and southern New Jersey at that time. Depending on model trends over the coming days, we may need to expand the forecast of precipitation a bit farther to the north.

Once Thursday's system moves out to sea, it appears as though high pressure will build into our region from the west for Friday and Saturday.

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

Today . VFR with a ceiling between 4000-6000 feet through at least this morning, then clouds should dissipate from southeast to northwest. Northwest winds 15-20 knots with gusts to around 30 knots (strongest winds should be in the 14-21z time frame). Moderate confidence.

Tonight . VFR. Northwest winds diminishing to around 10 knots in the evening. High confidence.

Outlook .

Sunday . VFR. Northwest wind 10 to 15 knots with gusts around 20 knots. High confidence.

Monday . Mainly VFR. Light wintry precipitation may spread into our region from the southwest during the afternoon. Conditions should deteriorate for Monday evening and Monday night in snow. The snow may mix with sleet and rain at KILG, KMIV and KACY. North to east wind 5 to 10 knots. Low to medium confidence.

Tuesday . MVFR and IFR conditions in snow around KRDG and KABE, a wintry mix of precipitation at KTTN, KPNE and KPHL, and mainly rain around KILG, KMIV and KACY. Northeast wind 5 to 10 knots. Low to medium confidence.

Wednesday . Mainly VFR. North wind 5 to 10 knots. Medium confidence.

MARINE. Gale Warning into this evening for all zones. Through tonight, strong northwest flow will result in surface gusts to gale force before diminishing some later this evening from south to north. Some light freezing spray may develop tonight given the gusty winds and colder air temperatures, however since water temperatures are still on the relatively milder side kept any mention as chance for now.

Outlook .

Sunday . Northwest wind 15 to 20 knots with gusts of 25 to 30 knots.

Monday . No marine headlines are anticipated.

Tuesday . Northeast wind 15 to 20 knot with gusts around 25 knots.

Wednesday . North wind 10 to 15 knots with gusts around 20 knots. Waves on our ocean waters may remain around 5 feet.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Gale Warning until 10 PM EST this evening for ANZ430-431- 450>455.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BDRN4 - 8539094 - Burlington, Delaware River, NJ 1 mi47 min NW 8.9 G 14 31°F 37°F1019.7 hPa
NBLP1 - 8548989 - Newbold, PA 8 mi53 min NW 19 G 24 32°F 37°F1020.1 hPa
BDSP1 13 mi53 min 30°F 42°F1020.8 hPa
PHBP1 - 8545240 - Philadelphia, PA 17 mi53 min 32°F 38°F1020.8 hPa
MRCP1 - 8540433 - Marcus Hook, PA 34 mi53 min 31°F 40°F1021.3 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 44 mi53 min WNW 9.9 33°F 1021 hPa5°F

Wind History for Burlington, Delaware River, NJ
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Philadelphia, Northeast Philadelphia Airport, PA7 mi29 minNW 18 G 2610.00 miMostly Cloudy and Breezy33°F7°F33%1020.7 hPa
Mount Holly, South Jersey Regional Airport, NJ9 mi29 minWNW 15 G 2610.00 miA Few Clouds32°F8°F36%1020.1 hPa
Trenton, Mercer County Airport, NJ14 mi30 minNW 18 G 2610.00 miA Few Clouds and Breezy31°F7°F36%1018.7 hPa
Doylestown, Doylestown Airport, PA21 mi29 minNW 13 G 2410.00 miOvercast31°F6°F35%1020.1 hPa
Philadelphia - Wings Field Airport, PA21 mi48 minWNW 13 G 1910.00 miOvercast29°F10°F44%1020.7 hPa
Philadelphia, Philadelphia International Airport, PA24 mi29 minNW 20 G 3110.00 miPartly Cloudy and Breezy32°F8°F36%1020.9 hPa

Link to 5 minute data for KPNE

Wind History from PNE (wind in knots)
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1 day agoSW12SW10SW7SW7SW5SW5CalmCalmSW3CalmSW3SW4SW7SW5SW8W7W5W6W6W12W12
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2 days agoNW18
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NW9W83W5W6W7W9W3CalmSW3CalmS3S3S3SW5S7S7SW8SW12
G18

Tide / Current Tables for Burlington, New Jersey
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Burlington
Click for Map
Sat -- 02:45 AM EST     Moonset
Sat -- 04:51 AM EST     0.06 feet Low Tide
Sat -- 07:15 AM EST     Sunrise
Sat -- 10:31 AM EST     6.57 feet High Tide
Sat -- 12:49 PM EST     Moonrise
Sat -- 05:08 PM EST     Sunset
Sat -- 05:36 PM EST     0.17 feet Low Tide
Sat -- 10:56 PM EST     5.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.43.21.910.30.112.94.45.56.46.55.74.53.32.21.20.40.31.53.14.35.45.9

Tide / Current Tables for Philadelphia, Pennsylvania Current
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Philadelphia
Click for Map
Sat -- 12:26 AM EST     -1.39 knots Max Ebb
Sat -- 02:46 AM EST     Moonset
Sat -- 04:29 AM EST     0.00 knots Slack
Sat -- 06:06 AM EST     1.04 knots Max Flood
Sat -- 07:15 AM EST     Sunrise
Sat -- 09:53 AM EST     -0.00 knots Slack
Sat -- 12:50 PM EST     Moonrise
Sat -- 01:27 PM EST     -1.33 knots Max Ebb
Sat -- 02:41 PM EST     -1.29 knots Min Ebb
Sat -- 03:10 PM EST     -1.29 knots Max Ebb
Sat -- 05:09 PM EST     Sunset
Sat -- 05:26 PM EST     0.00 knots Slack
Sat -- 06:50 PM EST     0.71 knots Max Flood
Sat -- 07:45 PM EST     0.66 knots Min Flood
Sat -- 08:51 PM EST     0.73 knots Max Flood
Sat -- 10:23 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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-1.4-1.3-1.1-0.9-0.40.510.90.70.6-0.1-0.8-1.1-1.3-1.3-1.3-1.2-0.40.50.70.70.70.3-0.5

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
Ground Weather Radar Station




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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 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.