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Marine Weather and Tides
Version 3.4 |
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 5:32AM | Sunset 8:35PM | Wednesday June 26, 2019 12:19 AM EDT (04:19 UTC) | Moonrise 12:42AM | Moonset 1:14PM | Illumination 38% |  |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 936 Pm Edt Tue Jun 25 2019
Tonight..NW winds 5 to 10 kt. Waves 2 ft or less.
Wed..NW winds 5 to 10 kt, becoming W in the afternoon. Waves 2 ft or less.
Wed night..W winds 5 to 10 kt. Waves 2 ft or less.
Thu..W winds around 5 kt. Waves 2 ft or less.
Thu night..SW winds around 5 kt. Waves 2 ft or less.
Fri..W winds around 5 kt, becoming sw around 5 kt in the afternoon. Waves 2 ft or less.
Fri night..SW winds 5 to 10 kt. Waves 2 ft or less.
Sat..W winds 5 to 10 kt. Waves 2 ft or less.
Sat night..W winds 5 to 10 kt. Waves 2 ft or less.
Sun..NW winds around 10 kt. Waves 2 ft or less. A chance of showers in the afternoon.
Sun night..NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 3 ft in the evening, then 2 ft or less. A chance of showers in the evening.
Tonight..NW winds 5 to 10 kt. Waves 2 ft or less.
Wed..NW winds 5 to 10 kt, becoming W in the afternoon. Waves 2 ft or less.
Wed night..W winds 5 to 10 kt. Waves 2 ft or less.
Thu..W winds around 5 kt. Waves 2 ft or less.
Thu night..SW winds around 5 kt. Waves 2 ft or less.
Fri..W winds around 5 kt, becoming sw around 5 kt in the afternoon. Waves 2 ft or less.
Fri night..SW winds 5 to 10 kt. Waves 2 ft or less.
Sat..W winds 5 to 10 kt. Waves 2 ft or less.
Sat night..W winds 5 to 10 kt. Waves 2 ft or less.
Sun..NW winds around 10 kt. Waves 2 ft or less. A chance of showers in the afternoon.
Sun night..NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 3 ft in the evening, then 2 ft or less. A chance of showers in the evening.
ANZ400 936 Pm Edt Tue Jun 25 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure will remain to our southwest Wednesday and Thursday. The high will remain there into Friday as well, but by Friday a mid- level disturbance will also pass just north of the region. An upper level trough and surface frontal system will slowly approach from the north over the weekend, with a cold front likely moving through on Sunday. High pressure is expected to build back in from the northwest early next week.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure will remain to our southwest Wednesday and Thursday. The high will remain there into Friday as well, but by Friday a mid- level disturbance will also pass just north of the region. An upper level trough and surface frontal system will slowly approach from the north over the weekend, with a cold front likely moving through on Sunday. High pressure is expected to build back in from the northwest early next week.
7 Day Forecast for Marine Location Near Millbourne borough, PA
Hourly EDIT Helplocation: 39.96, -75.18 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 260145 afdphi area forecast discussion national weather service mount holly nj 945 pm edt Tue jun 25 2019 Synopsis High pressure will remain to our southwest Wednesday and Thursday. The high will remain there into Friday as well, but by Friday a mid- level disturbance will also pass just north of the region. An upper level trough and surface frontal system will slowly approach from the north over the weekend, with a cold front likely moving through on Sunday. High pressure is expected to build back in from the northwest early next week. Near term until 6 am Wednesday morning Weak cold front continues to work its way offshore. A few sprinkles and even a light shower passed across sussex county, nj, but has since dissipated this evening. Drier air will continue to infiltrate the region, providing for a refreshing night with a break from the higher humidity. Lows will be in the 60s for the most part across the area. Winds will decrease back to around 5 knots overnight. Some patchy fog is possible in the river valleys and near the coast as radiational cooling takes place. This should burn off shortly after sunrise. Short term 6 am Wednesday morning through 6 pm Wednesday Some patchy fog is possible in the river valleys and near along the coast in the morning, but this should burn off by 8 am. Fair weather will continue Wednesday across our region. Weak high pressure will build south to north while upper heights also build overhead. Overall a dry day is expected. Some of the models are depicting some showers tstms across NW pa and ny that may track SE towards the southern poconos during the late afternoon. Held off of adding these to the grids at this moment, but there is a chance for a quick shower and or thundershower across the northern counties tomorrow afternoon. Most showers and thunderstorms will have a difficult time progressing east of the appalachian plateau with northwesterly downslope flow dominating. Long term Wednesday night through Tuesday Overview... a typical summertime pattern takes hold over the CONUS as we close out the month of june. An upper level flow that is initially fairly zonal will become more amplified as a trough digging into the west helps force the building of a downstream ridge over the central us. This ridge will initially extend to the east coast on its eastern flank, with high pressure centered south of the mid-atlantic. This will lead to hot weather and a potential heatwave for the end of the work week. Heading into the weekend, changes occur as a trough dropping south out of canada will act to erode the eastern reaches of the ridge. This will bring some unsettled conditions for the weekend. By early next week, the trough pulls away, and high pressure should build in from the northwest. This should keep Monday and most of Tuesday dry with a frontal system potentially approaching beyond then. Dailies... Wednesday night-Thursday night... Dry conditions and lows generally a little above average Wednesday night. High pressure centered just to our southwest and rising mid-level heights will yield a warm day Thursday, with highs in the upper 80s and low 90s. 25.12z nam indicated thunderstorm development over southeast pa and DELMARVA in the afternoon, but other guidance is far less bullish. Given the synoptic pattern just described, believe the NAM is in error and expecting dry conditions to prevail. A dry night as well with overnight lows also a little on the warm side of average, very similar to the prior night. Friday-Friday night... A shortwave will pass to our north Friday afternoon into Friday night. Nothing too impressive, and in fact it looks to be deamplifying and shearing out as it approaches, not a surprise considering the ridge will be continuing to build Friday with high pressure remaining to our south. Friday looks to be the warmest day of the week, with many locations likely to crack 90 and some mid 90s possible in the urban i95 corridor. Dew points look to stay mainly in the mid 60s, so a bit sticky but not oppressively humid. The very warm and marginally humid air combined with modest lift from the shortwave will lead to the possibility of showers and thunderstorms developing late in the day and overnight. Currently does not look like anything too well organized, but scattered showers and storms will be possible for the late afternoon, evening, and overnight especially in the northwestern half of the area. Saturday-Sunday... As mentioned, a trough will be dropping down from out of quebec and into new england over the weekend. Weak low pressure and an attendant cold front will exist at the surface, and this system will begin to approach the area, moving almost due south. On Saturday, with temperatures remaining warm ahead of the front and dew points climbing to near 70 in developing southwest |
flow, it appears a pre-frontal trough could serve as a focus for scattered showers and thunderstorms in the afternoon and evening. By Sunday, the actual cold front approaches, and in fact that may pass through as early as Sunday morning. If the timing of the front is slower and we heat up again on Sunday, we would see another round of showers and thunderstorms. Cannot rule out the potential for some stronger storms and locally heavy rain over the weekend, though the signals for either aren't overly strong. A good deal of fine tuning will be needed here, as the biggest uncertainty right now relates to the timing of the frontal system. Models struggling a bit with an anticyclonic wave break of the ridge over the central us and how it will impact the canadian trough to its east, which will have impacts on the surface low moving offshore and intensifying. Not expecting a weekend washout, but scattered showers and storms will be possible both days at least in parts of the area. Monday-Tuesday... The trough to our northeast will slide away early next week, and weak high pressure looks to build in. Temperatures should be seasonably warm Monday as the trough and associated cold pool pull away, and am confident in dry conditions with the high building in. Fairly wide spread in guidance by Tuesday, though warm and dry conditions will probably continue for at least most of the day. However, it appears we will have a frontal system approaching by later Tuesday or Wednesday as the ridge to the west will have flattened out from the wave breaking evolution over the weekend, opening the door for that system to track a little closer to us. Aviation 02z Wednesday through Sunday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Tonight...VFR conditions expected with only some high level cloudiness expected. West to northwest winds will decrease to less than 5 knots in most areas. Wednesday...VFR expected with mostly sunny skies during the morning and some daytime CU during the afternoon. Winds will be mostly NW to w at 5 to 10 knots. There may be a sea breeze affecting kacy during the afternoon. Outlook... Wednesday night-Thursday night... VFR. Winds very light but mainly from the west. Friday-Friday night... MainlyVFR, but a shower or thunderstorm is possible from late afternoon through the overnight especially north of phl. Saturday-Sunday... VFR overall, however, showers and thunderstorms are possible both days. West-southwest winds of 5 to 10 kt Saturday becoming northwest Sunday with gusts to 20 kt possible. Marine A cold front has crossed the waters as of late afternoon. Winds will remain W to NW overnight at 5 to 10 knots. Fair weather is expected. Wednesday, a continuation of fair weather with northwest winds around 10 knots during the morning and then light onshore winds for the afternoon. Outlook... Wednesday night-Friday... Sub-sca conditions with light winds and seas 1 to 2 ft. Friday night-Sunday... Sub-sca conditions expected to continue with seas 2 to 3 ft. A risk of scattered showers and thunderstorms exists for much of this period. Southwest winds of 10 to 15 kt Saturday. Northwesterly winds develop Sunday with gusts to 20 kt possible. Rip currents... a low risk of rip current development will continue into Wednesday as winds turn very light and waves in the surf zone diminish to only around one foot. Phi watches warnings advisories Pa... None. Nj... None. De... None. Md... None. Marine... None. Synopsis... O'brien near term... Davis o'hara short term... Davis o'hara long term... O'brien aviation... Davis johnson o'brien o'hara marine... Davis o'brien o'hara |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| PHBP1 - 8545240 - Philadelphia, PA | 3 mi | 80 min | 80°F | 72°F | 1012.3 hPa (+1.5) | |||
| BDSP1 | 6 mi | 80 min | 82°F | 73°F | 1013 hPa (+1.5) | |||
| MRCP1 - 8540433 - Marcus Hook, PA | 16 mi | 80 min | 79°F | 74°F | 1012.8 hPa (+1.4) | |||
| BDRN4 - 8539094 - Burlington, Delaware River, NJ | 18 mi | 104 min | W 2.9 G 2.9 | 76°F | 71°F | 1012.2 hPa | ||
| NBLP1 - 8548989 - Newbold, PA | 26 mi | 80 min | Calm G 1 | 72°F | 71°F | 1013 hPa (+1.3) | ||
| DELD1 - 8551762 - Delaware City, DE | 34 mi | 86 min | W 4.1 G 5.1 | 78°F | 75°F | 1013.3 hPa | ||
| RDYD1 - 8551910 - Reedy Point, DE | 35 mi | 80 min | 1012.7 hPa (+1.4) | |||||
| CHCM2 - 8573927 - Chesapeake City, MD | 45 mi | 80 min | Calm G 1.9 | 73°F | 80°F | 1013.7 hPa (+1.5) | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 48 mi | 110 min | WSW 2.9 | 66°F | 1012 hPa | 61°F |
Wind History for Philadelphia, PA
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Philadelphia, Philadelphia International Airport, PA | 6 mi | 26 min | W 7 | 10.00 mi | Partly Cloudy | 77°F | 63°F | 62% | 1013.4 hPa |
| Philadelphia, Northeast Philadelphia Airport, PA | 12 mi | 26 min | WNW 6 | 10.00 mi | Fair | 78°F | 61°F | 56% | 1013.4 hPa |
| Philadelphia - Wings Field Airport, PA | 13 mi | 45 min | SW 3 | 10.00 mi | Fair | 71°F | 63°F | 78% | 1013.5 hPa |
| Mount Holly, South Jersey Regional Airport, NJ | 18 mi | 26 min | N 0 | 10.00 mi | Fair | 72°F | 63°F | 73% | 1013 hPa |
Wind History from PHL (wind in knots)
| 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 | 12 AM | |
| Last 24hr | S | S | Calm | S | S | SE | S | W | SW | W | NW | W | W | W | W | W | W | NW | W | NW | W | W | W | |
| 1 day ago | W | SW | W | SW | Calm | Calm | SW | SW | SW | S | SW | S | SW | SW | S | S | S | S | S | S | S | S | S | |
| 2 days ago | NW | N | NW | Calm | N | N | N | N | N | NW | NW | NW G16 | NW | W | W | W | W | W | W | SW | SW | W | W |
Tide / Current Tables for Market Street Bridge, Schuylkill River, Pennsylvania
EDIT Weekend mode (on/off) (on/off) Help One Week of DataMarket Street Bridge
Click for Map
Wed -- 01:41 AM EDT Moonrise
Wed -- 03:40 AM EDT 0.91 feet Low Tide
Wed -- 05:33 AM EDT Sunrise
Wed -- 09:03 AM EDT 5.67 feet High Tide
Wed -- 02:13 PM EDT Moonset
Wed -- 04:04 PM EDT 0.59 feet Low Tide
Wed -- 08:33 PM EDT Sunset
Wed -- 09:40 PM EDT 5.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:41 AM EDT Moonrise
Wed -- 03:40 AM EDT 0.91 feet Low Tide
Wed -- 05:33 AM EDT Sunrise
Wed -- 09:03 AM EDT 5.67 feet High Tide
Wed -- 02:13 PM EDT Moonset
Wed -- 04:04 PM EDT 0.59 feet Low Tide
Wed -- 08:33 PM EDT Sunset
Wed -- 09:40 PM EDT 5.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 3.3 | 2.3 | 1.6 | 1.1 | 1 | 2 | 3.6 | 4.7 | 5.3 | 5.7 | 5.3 | 4.5 | 3.4 | 2.3 | 1.5 | 0.9 | 0.6 | 1.1 | 2.7 | 4.2 | 5 | 5.7 | 5.8 | 5.3 |
Tide / Current Tables for Philadelphia, Pennsylvania Current
EDIT (on/off) Help One Week of DataPhiladelphia
Click for Map
Wed -- 12:38 AM EDT -1.46 knots Max Ebb
Wed -- 01:41 AM EDT Moonrise
Wed -- 04:29 AM EDT 0.00 knots Slack
Wed -- 05:33 AM EDT Sunrise
Wed -- 06:06 AM EDT 1.18 knots Max Flood
Wed -- 09:38 AM EDT -0.00 knots Slack
Wed -- 12:56 PM EDT -1.54 knots Max Ebb
Wed -- 02:13 PM EDT Moonset
Wed -- 04:58 PM EDT 0.00 knots Slack
Wed -- 06:35 PM EDT 1.18 knots Max Flood
Wed -- 08:33 PM EDT Sunset
Wed -- 10:17 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:38 AM EDT -1.46 knots Max Ebb
Wed -- 01:41 AM EDT Moonrise
Wed -- 04:29 AM EDT 0.00 knots Slack
Wed -- 05:33 AM EDT Sunrise
Wed -- 06:06 AM EDT 1.18 knots Max Flood
Wed -- 09:38 AM EDT -0.00 knots Slack
Wed -- 12:56 PM EDT -1.54 knots Max Ebb
Wed -- 02:13 PM EDT Moonset
Wed -- 04:58 PM EDT 0.00 knots Slack
Wed -- 06:35 PM EDT 1.18 knots Max Flood
Wed -- 08:33 PM EDT Sunset
Wed -- 10:17 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| -1.4 | -1.4 | -1.2 | -1 | -0.5 | 0.6 | 1.2 | 0.9 | 0.7 | 0.4 | -0.3 | -1.1 | -1.4 | -1.5 | -1.4 | -1.2 | -0.9 | 0 | 1 | 1.1 | 0.9 | 0.8 | 0.2 | -0.6 |
Weather Map and Satellite Images
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GOES 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (0,6,7,8)
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Ground Weather Radar Station Philadelphia, PA
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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 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. |