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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 7:12AM | Sunset 6:18PM | Wednesday October 17, 2018 6:01 AM EDT (10:01 UTC) | Moonrise 1:56PM | Moonset 12:00AM | Illumination 54% |  |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 319 Am Edt Wed Oct 17 2018
.small craft advisory in effect from 11 am edt this morning through Thursday afternoon...
Today..W winds 5 to 10 kt, increasing to 15 to 20 kt with gusts up to 25 kt. Waves 2 ft or less, then around 3 ft late this morning and afternoon.
Tonight..NW winds 15 to 20 kt with gusts up to 30 kt. Waves around 3 ft.
Thu..NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the late morning and afternoon. Gusts up to 25 kt. Waves around 3 ft early in the morning, then 2 ft or less.
Thu night..NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 ft or less.
Fri..W winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon. Waves 2 ft or less.
Fri night..SW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 ft or less. A chance of showers.
Sat..W winds 15 to 20 kt. Waves 2 ft or less. A chance of showers.
Sat night..NW winds 15 to 20 kt. Waves 2 ft or less.
Sun..NW winds 20 to 25 kt. Waves 2 ft or less.
Sun night..NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Waves 2 ft or less.
.small craft advisory in effect from 11 am edt this morning through Thursday afternoon...
Today..W winds 5 to 10 kt, increasing to 15 to 20 kt with gusts up to 25 kt. Waves 2 ft or less, then around 3 ft late this morning and afternoon.
Tonight..NW winds 15 to 20 kt with gusts up to 30 kt. Waves around 3 ft.
Thu..NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the late morning and afternoon. Gusts up to 25 kt. Waves around 3 ft early in the morning, then 2 ft or less.
Thu night..NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves 2 ft or less.
Fri..W winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon. Waves 2 ft or less.
Fri night..SW winds 15 to 20 kt with gusts up to 25 kt. Waves 2 ft or less. A chance of showers.
Sat..W winds 15 to 20 kt. Waves 2 ft or less. A chance of showers.
Sat night..NW winds 15 to 20 kt. Waves 2 ft or less.
Sun..NW winds 20 to 25 kt. Waves 2 ft or less.
Sun night..NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Waves 2 ft or less.
ANZ400 319 Am Edt Wed Oct 17 2018
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A cold front will cross the middle atlantic region this afternoon. It will be followed by high pressure from the ohio valley which will be across the area through Friday. Another low pressure system and cold front will affect our area Friday night and Saturday. More high pressure will move in for the end of the weekend and into early next week.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A cold front will cross the middle atlantic region this afternoon. It will be followed by high pressure from the ohio valley which will be across the area through Friday. Another low pressure system and cold front will affect our area Friday night and Saturday. More high pressure will move in for the end of the weekend and into 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 170742 afdphi area forecast discussion national weather service mount holly nj 342 am edt Wed oct 17 2018 Synopsis A cold front will cross the middle atlantic region this afternoon. It will be followed by high pressure from the ohio valley which will be across the area through Friday. Another low pressure system and cold front will affect our area Friday night and Saturday. More high pressure will move in for the end of the weekend and into early next week. Near term until 6 pm this evening Cold front is expected to arrive later today. Pressure gradient, especially behind the front will increase significantly. As a result, expect gusty conditions and strong cold air advection. One thing we are not expecting much of with this front is precipitation. Dew points have dropped into the 30s and 40s across the region after the cold front from 2 nights ago. There will not be any significant moisture advection today ahead of the front. Thus, precipitation, if any, will be limited. Have kept only a slight chance mention across the southern poconos and NW nj. Short term 6 pm this evening through 6 am Thursday Behind the front, expect continued dry and cold air advection overnight. Consequently, we could see the first freeze of the season for some of our area. There are however a few unknowns that could have an impact on how widespread the freeze will be. First of all, winds are not expected to decouple much overnight, but rather should remain near or above 10 mph. As a result, we likely won't see much in the way of a frost. However, this could also limit radiational cooling. Secondly, if mid level clouds that are expected this afternoon with the front are slower to clear out, that could also limit radiational cooling. Freezing conditions look to be most likely in the southern poconos where we have issued a freeze warning. For far NW nj, confidence is lower, so have issued a freeze watch for sussex county. For the rest of NW nj, lehigh valley, and berks county, we will likely see lows in the mid 30s, but are not planning any frost advisory at this time as the winds should preclude the development of frost. For areas along and southeast of the i95 corridor, expect lows from the mid 30s to lower 40s. Long term Thursday through Tuesday Thursday thru Friday... Mostly fair this period with a ridge of high pressure affecting the region. Some gusty winds early Thursday will diminish by afternoon. Temperatures well below normal Thu then a little below normal for Friday. Increasing clouds are expected later Friday. Friday night and Saturday... The wettest part of the long term with a low pressure system moving north of the area and a cold front expected to cross the region. Pops were raised from the earlier fcst with high chc low likely pops now in the grids. Temperatures will be close to normal Sat with higher humidity levels too. The cold front will cross the area during the afternoon, so showers are possible until after the front passes. Gusty winds are possible sat, but nothing too serious. Sunday thru Tuesday... Mostly fair weather is expected this period, however a couple showers may occur across the northern counties Mon night and Tuesday. High pressure from the west will build in Mon and the move offshore tue. Temperatures will be mostly below normal Sun Mon then rebound back to near normal for tue. Normal highs: phl mpo ged : 64 55 66 |
normal lows : phl mpo ged : 46 34 43 Aviation 08z Wednesday through Sunday Today...VFR conditions expected. Winds will shift from southwesterly to westerly to west northwesterly through the day. Gusts around 25 kt or more will be possible, primarily between 15 and 00z. High confidence. Tonight...VFR conditions expected. Northwesterly winds will gradually diminish to near 10 kt overnight. High confidence. Outlook... thu thru fri...VFR expected. Gusty NW winds Thu morning. Fri night sat... Sub-vfr possible with showers. Gusty winds sat. Sat night Sunday...VFR expected. Gusty winds again Sunday. Marine Winds will be increasing, especially through the afternoon with gale force gusts expected to develop by early this evening on all waters except the upper delaware bay. There is a chance that gale force gusts could develop a few hours earlier, but don't have enough confidence at this time to move up the start time of the gale warning. Gale force gusts should continue for most, if not all of the overnight hours. On the upper delaware bay, expect small craft advisory conditions through out the period. Outlook... thu: early gales will settle to SCA conditions then drop below SCA later Thursday. Fair weather. Thu night thru fri: sub-sca, but winds increase Fri late afternoon. Fair. Fri night thru sat. Showers. SCA conditions expected. Sat night into Sunday..A continuation of SCA conditions with some low-end gales possible. Fair weather. Phi watches warnings advisories Pa... Freeze warning from midnight tonight to 9 am edt Thursday for paz054-055. Nj... Freeze watch from late tonight through Thursday morning for njz001. De... None. Md... None. Marine... Small craft advisory from 11 am this morning to 6 pm edt this evening for anz431-452>455. Gale warning from 6 pm this evening to 9 am edt Thursday for anz452>455. Small craft advisory from 8 am this morning to 6 pm edt this evening for anz450-451. Gale warning from 6 pm this evening to 6 am edt Thursday for anz431-450-451. Small craft advisory from 11 am this morning to 6 pm edt Thursday for anz430. Synopsis... O'hara near term... Johnson short term... Johnson long term... O'hara aviation... Johnson o'hara marine... Johnson 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 | 32 min | 50°F | 62°F | 1016.9 hPa | |||
| BDSP1 | 6 mi | 32 min | 50°F | 60°F | 1017.5 hPa | |||
| MRCP1 - 8540433 - Marcus Hook, PA | 16 mi | 32 min | 48°F | 64°F | 1017.5 hPa | |||
| BDRN4 - 8539094 - Burlington, Delaware River, NJ | 18 mi | 86 min | W 1 G 1.9 | 49°F | 57°F | 1016.8 hPa | ||
| NBLP1 - 8548989 - Newbold, PA | 26 mi | 32 min | SW 2.9 G 2.9 | 47°F | 58°F | 1017.7 hPa | ||
| DELD1 - 8551762 - Delaware City, DE | 34 mi | 32 min | WNW 2.9 G 5.1 | 52°F | 60°F | 1017.7 hPa | ||
| RDYD1 - 8551910 - Reedy Point, DE | 35 mi | 32 min | 66°F | |||||
| CHCM2 - 8573927 - Chesapeake City, MD | 45 mi | 32 min | WSW 1.9 G 2.9 | 53°F | 64°F | 1018.1 hPa | ||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 46 mi | 32 min | WSW 8 G 8.9 | 57°F | 68°F | 1017.3 hPa | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 48 mi | 32 min | SW 1.9 | 46°F | 1017 hPa | 43°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 | 68 min | W 7 | 10.00 mi | Overcast | 50°F | 42°F | 74% | 1017.5 hPa |
| Philadelphia, Northeast Philadelphia Airport, PA | 12 mi | 68 min | WSW 3 | 10.00 mi | Fair | 48°F | 42°F | 80% | 1017.5 hPa |
| Philadelphia - Wings Field Airport, PA | 13 mi | 67 min | N 0 | 7.00 mi | Fair | 41°F | 41°F | 100% | 1017.6 hPa |
Wind History from PHL (wind in knots)
| 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 | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | NW G20 | NW G18 | N | NW | N | N | NW | NW | S | S | W | W | W | W | W | W | S | SW | SW | W | W | W | W | |
| 1 day ago | SE | S | S | S | S | S | SW | SW | SW | SW | SW | SW G19 | SW G21 | SW | SW | SW | SW | W | NW G31 | NW G29 | NW G25 | NW G29 | NW | NW |
| 2 days ago | Calm | Calm | N | N | Calm | Calm | Calm | Calm | SW | W | SW | S | S | S | S | Calm | SE | E | Calm | E | E | S | S |
Tide / Current Tables for Market Street Bridge, Schuylkill River, Pennsylvania
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataMarket Street Bridge
Click for Map
Wed -- 12:07 AM EDT Moonset
Wed -- 03:14 AM EDT 0.50 feet Low Tide
Wed -- 07:13 AM EDT Sunrise
Wed -- 08:34 AM EDT 5.34 feet High Tide
Wed -- 02:55 PM EDT Moonrise
Wed -- 03:20 PM EDT 0.54 feet Low Tide
Wed -- 06:18 PM EDT Sunset
Wed -- 08:54 PM EDT 6.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:07 AM EDT Moonset
Wed -- 03:14 AM EDT 0.50 feet Low Tide
Wed -- 07:13 AM EDT Sunrise
Wed -- 08:34 AM EDT 5.34 feet High Tide
Wed -- 02:55 PM EDT Moonrise
Wed -- 03:20 PM EDT 0.54 feet Low Tide
Wed -- 06:18 PM EDT Sunset
Wed -- 08:54 PM EDT 6.01 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 |
| 2.8 | 1.9 | 1.1 | 0.5 | 0.9 | 2.3 | 3.5 | 4.4 | 5.2 | 5.3 | 4.6 | 3.6 | 2.6 | 1.7 | 1 | 0.6 | 0.8 | 2.2 | 3.8 | 4.8 | 5.6 | 6 | 5.6 | 4.6 |
Tide / Current Tables for Philadelphia, Pennsylvania Current
EDIT (on/off) Help One Week of DataPhiladelphia
Click for Map
Wed -- 12:07 AM EDT Moonset
Wed -- 04:01 AM EDT 0.00 knots Slack
Wed -- 05:23 AM EDT 0.78 knots Max Flood
Wed -- 06:40 AM EDT 0.62 knots Min Flood
Wed -- 07:13 AM EDT Sunrise
Wed -- 07:38 AM EDT 0.69 knots Max Flood
Wed -- 09:04 AM EDT -0.00 knots Slack
Wed -- 12:01 PM EDT -1.37 knots Max Ebb
Wed -- 02:55 PM EDT Moonrise
Wed -- 04:00 PM EDT 0.00 knots Slack
Wed -- 05:35 PM EDT 1.10 knots Max Flood
Wed -- 06:17 PM EDT Sunset
Wed -- 09:15 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:07 AM EDT Moonset
Wed -- 04:01 AM EDT 0.00 knots Slack
Wed -- 05:23 AM EDT 0.78 knots Max Flood
Wed -- 06:40 AM EDT 0.62 knots Min Flood
Wed -- 07:13 AM EDT Sunrise
Wed -- 07:38 AM EDT 0.69 knots Max Flood
Wed -- 09:04 AM EDT -0.00 knots Slack
Wed -- 12:01 PM EDT -1.37 knots Max Ebb
Wed -- 02:55 PM EDT Moonrise
Wed -- 04:00 PM EDT 0.00 knots Slack
Wed -- 05:35 PM EDT 1.10 knots Max Flood
Wed -- 06:17 PM EDT Sunset
Wed -- 09:15 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 |
| -1.3 | -1.1 | -1.1 | -0.9 | -0 | 0.7 | 0.7 | 0.6 | 0.6 | 0.1 | -0.8 | -1.2 | -1.4 | -1.2 | -1 | -0.7 | -0 | 0.9 | 1 | 0.7 | 0.6 | 0.2 | -0.6 | -1.1 |
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 (6,6,7,8)
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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. |