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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 6:41AM | Sunset 5:47PM | Saturday February 23, 2019 4:37 PM EST (21:37 UTC) | Moonrise 10:42PM | Moonset 9:23AM | Illumination 80% |  |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 349 Pm Est Sat Feb 23 2019
.small craft advisory in effect Sunday afternoon...
.gale warning in effect from Sunday evening through Monday afternoon...
Tonight..E winds 5 to 10 kt, becoming se 10 to 15 kt late. Waves 2 ft or less. Rain. Patchy fog after midnight with vsby 1 to 3 nm.
Sun..S winds 10 to 15 kt with gusts up to 20 kt, becoming sw 15 to 20 kt with gusts up to 30 kt in the afternoon. Waves 2 ft or less, then around 3 ft early in the morning. Patchy fog in the morning. Rain in the morning, then a chance of showers early in the afternoon. Vsby 1 to 3 nm in the morning.
Sun night..W winds 20 to 25 kt with gusts up to 45 kt. Waves around 3 ft.
Mon..W winds 20 to 25 kt with gusts up to 45 kt. Waves 3 to 4 ft.
Mon night..NW winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt after midnight. Waves around 3 ft in the evening, then 2 ft or less.
Tue..NW winds around 10 kt with gusts up to 20 kt. Waves 2 ft or less.
Tue night..N winds 5 to 10 kt. Waves 2 ft or less.
Wed..N winds 5 to 10 kt, becoming W in the afternoon. Waves 2 ft or less.
Wed night..NW 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 around 5 kt. Waves 2 ft or less.
.small craft advisory in effect Sunday afternoon...
.gale warning in effect from Sunday evening through Monday afternoon...
Tonight..E winds 5 to 10 kt, becoming se 10 to 15 kt late. Waves 2 ft or less. Rain. Patchy fog after midnight with vsby 1 to 3 nm.
Sun..S winds 10 to 15 kt with gusts up to 20 kt, becoming sw 15 to 20 kt with gusts up to 30 kt in the afternoon. Waves 2 ft or less, then around 3 ft early in the morning. Patchy fog in the morning. Rain in the morning, then a chance of showers early in the afternoon. Vsby 1 to 3 nm in the morning.
Sun night..W winds 20 to 25 kt with gusts up to 45 kt. Waves around 3 ft.
Mon..W winds 20 to 25 kt with gusts up to 45 kt. Waves 3 to 4 ft.
Mon night..NW winds 10 to 15 kt. Gusts up to 30 kt, decreasing to 20 kt after midnight. Waves around 3 ft in the evening, then 2 ft or less.
Tue..NW winds around 10 kt with gusts up to 20 kt. Waves 2 ft or less.
Tue night..N winds 5 to 10 kt. Waves 2 ft or less.
Wed..N winds 5 to 10 kt, becoming W in the afternoon. Waves 2 ft or less.
Wed night..NW 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 around 5 kt. Waves 2 ft or less.
ANZ400 349 Pm Est Sat Feb 23 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A powerful storm system tracking through the great lakes will bring rain to the area tonight and tomorrow. A cold front will cross the region late tomorrow, with very strong winds behind it on Sunday night and Monday. High pressure builds in with dry and cooler weather for Tuesday and most of Wednesday. A weak frontal system may bring some light rain or snow late Wednesday into Thursday. Additional unsettled weather is likely for the end of the week as another storm system develops nearby.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A powerful storm system tracking through the great lakes will bring rain to the area tonight and tomorrow. A cold front will cross the region late tomorrow, with very strong winds behind it on Sunday night and Monday. High pressure builds in with dry and cooler weather for Tuesday and most of Wednesday. A weak frontal system may bring some light rain or snow late Wednesday into Thursday. Additional unsettled weather is likely for the end of the week as another storm system develops nearby.
7 Day Forecast for Marine Location Near Pedrick, NJ
Hourly EDIT Helplocation: 39.76, -75.4 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 232056 afdphi area forecast discussion national weather service mount holly nj 356 pm est Sat feb 23 2019 Synopsis A powerful storm system tracking through the great lakes will bring rain to the area tonight and tomorrow. A cold front will cross the region late tomorrow, with very strong winds behind it on Sunday night and Monday. High pressure builds in with cooler and dry weather for Tuesday and most of Wednesday. A weak frontal system may bring some light rain or snow late Wednesday into Thursday. Additional unsettled weather is likely for the end of the week as another storm system develops nearby. Near term until 6 am Sunday morning Surface high pressure centered off the new england coast will continue to move offshore overnight as a weak low pressure system from the coastal carolinas moves toward the mid-atlantic region. Meanwhile, a warm front associated with a stronger low pressure system moving through the great lakes region is expected to reinvigorate the coastal low during the late overnight hours, allowing warmer air... Both aloft and at the surface... To surge northward, which in turn will slow, then reverse the normal nighttime downward trend in temperatures across the forecast area. This will result in above-freezing temperatures overnight for most locations except for the far northern counties (carbon monroe sussex)where a few hours of subfreezing temperatures could result in a period of freezing rain, especially at the higher elevations. However, confidence for ice accumulation is not high enough at this time to issue a winter weather advisory. Rain will start out on the light side, but then pick up and become heavy at times during the late overnight hours as an onshore flow interacts with lift associated with the advancing warm front, secondary low pressure system, and an upper level jet. The heaviest totals (1 to 1.5 inches) are expected across the DELMARVA and southern nj, with up to 1 inch possible north of the fall line (eastern pa, northern and central nj). With 3-hour FFG values near or over 2 inches in the south, and between 1.5 and 2.0 inches in the north, flood watches have not been issued. However, given the expected synoptic situation, convective-like downpours are possible which may result in rainfall rates high enough to produce localized flash flooding in a few spots. In addition to all this, a few rumbles of thunder are also possible. Short term 6 am Sunday morning through 6 pm Sunday Heavy rain will gradually subside during the morning hours as the warm front lifts northeast and its companion cold front pushes in from the west. Easterly winds will shift to the south, with temperatures surging into the upper 50s to near 60 south and even into the low 50s in the north. Then as the cold front moves through starting in the early afternoon hours in the west, the wind will abruptly shift to the west, and temperatures will begin to fall. Winds could gust to around 55 mph in the post cold front environment in the north, and these gusts, in combination with soggy ground, could result in downed trees... Especially in the higher elevations. A high wind warning has been posted for this area for Sunday afternoon through most of Monday. Strong winds may be delayed into the evening hours further south, so a high wind watch remains in effect for those areas. Long term Sunday night through Saturday Sunday night through Monday... The winds ramp up on Sunday night as the upper jet crosses the region. Winds aloft are impressive and around 140-200 kt at 500mb as the jet rolls through. Even winds at 850mb are strong and in the 60-80 kt range. While winds aloft are especially robust, we won't be seeing the strongest of them mixing down to the surface as the timing is just not right for ideal mixing to occur. However, expect a good deal of wind to make it to the surface in the strong cold air advection and it will remain quite gusty overnight and then continue through Monday. Winds will start to come down through the day on Monday as the gradient starts to weaken some. High wind warning is in effect for portions of nj and pa through 6pm mon as confidence is higher that we will reach 50 mph gusts or greater. We keep a high wind watch up for the rest of the areas where confidence is a bit lower. This will allow us a chance to get a better look at the new data and then decide if a warning or advisory would be the way to go. Either way, be sure to secure any loose items outside as they will be sure to blow around in these winds. In addition to the gusty winds, some pretty cold air will move into the region. While it won't be the coldest air we have seen this year so far, it will drop temperatures on average around 20 degrees from Sunday to Monday. Highs on Monday will be in the 30s north and west of the i-78 corridor and in the 40s through the i-95 corridor and points south and east. As we head into Tuesday, we see a relatively dry period start across the region. High pressure will build across the mid-atlantic through midweek, eventually crossing just to the north of our area. At this point the models start to diverge and show varying solutions as to what will affect the region. The ECMWF is stronger with the high and has it taking its time as it crosses the area, moving to the north and then offshore on Thursday. This solution would keep us dry through much of the week. The GFS has the high crossing to the north of the area on Wednesday with a clipper-type system moving quickly through late Wednesday into Thursday. The canadian has a similar solution to the GFS but there are enough differences in timing and strength to throw some doubt into the forecast. While the atmosphere appears to be pretty dry, don't expect much would fall to the ground in the GFS scenario but since the pattern is unsettled at this point, we will continue to mention at least a slight chance of precipitation through the midweek period and then see if the models can become better aligned in the coming days. For the end of the week, there is the potential for a coastal storm to develop off of the southeastern us coast. Models keep it offshore but another low inland over the ohio valley will track into our area, bringing the chance for another round of wintry precipitation. Aviation 21z Saturday through Thursday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Through sunset...VFR with bkn-ovc mid and high cloudiness. Light winds, primarily between east and south directions. High confidence. Tonight... Conditions deteriorating to sub-vfr (and likely ifr or worse late tonight) with chances of rain increasing as the night wears on. Moderate to heavy rain possible after midnight, and a rogue lightning strike cannot be ruled out (though chances are too low for TAF inclusion at this point). Light east to northeast winds. |
Southerly southeasterly llws probable, especially after midnight. Moderate confidence on overall evolution and surface winds llws; low confidence on category timing. Sunday... Rain becoming more showery during the morning. Low cigs vsbys and east southeast winds around 10 kts will likely continue through early afternoon before winds switch to southwest and increase to 10 to 20 kts with higher gusts. Conditions should becomeVFR quickly after the wind switch. Southerly southwesterly llws possible before the wind shift. Low confidence. Cannot completely rule out lightning with any rain showers, but confidence is not high enough for TAF inclusion. Outlook... Sunday night and Monday...VFR. West northwest winds 10 to 20 kts with gusts to 40 kts possible Sunday night, increasing to 20 to 30 kts with gusts 45+ kts possible Monday. Moderate confidence. Monday night and Tuesday...VFR with northwest winds 5 to 15 kts. High confidence. Tuesday night through Wednesday night... Rain snow showers with sub- vfr conditions possible. Light winds. Low confidence. Thursday...VFR with northwest winds 5 to 15 kts, with possibly higher gusts. Moderate confidence. Marine Sub-advisory conditions exist on the waters currently and should remain this way through tonight. However, conditions will deteriorate quickly on Sunday as onshore flow tonight becomes more southerly during the day. Advisory conditions should commence on the atlantic waters during the morning. Winds will continue to veer to southwest or west by afternoon. By this point, advisory-level winds are anticipated on delaware bay. The only change to the small craft advisory was to change the start time for delaware bay to noon. Otherwise, the advisory continues through 6 pm, with gales commencing as winds shift to westerly thereafter. Periods of rain will occur tonight and tomorrow, with visibility restrictions probable and possibly even some embedded convection as well. Given the strong winds aloft, erratic strong wind gusts may occur with the more showery precipitation on Sunday. A few lightning strikes cannot be ruled out. Outlook... Sunday night and Monday... Very strong west winds will develop Sunday night and Monday, with gales likely everywhere and storm-force winds possible (especially off the coast of northern new jersey). The gale watch for delaware bay and the southern nj de atlantic waters was upgraded to a gale warning, and the storm watch continues for the northern nj coastal waters for this period. With such strong offshore winds, blowout tides are likely to occur, perhaps with the Monday morning high tide but more likely with the Monday evening high tide. Monday night... Winds will rapidly diminish during this period, but residual gale-force gusts are possible in the evening. At least advisory-level winds are expected through the night. Tuesday... Lingering advisory conditions possible, mainly over the atlantic waters. Tuesday night through Thursday... Sub-advisory winds seas expected. Hydrology The majority of the rain will fall this evening through midday Sunday. Using the 1.00 to 1.50 of qpf, there are responses at our forecast points. No flooding is currently forecast, but models do put some crests near bankful. Over the weekend, keep an eye these forecast points... The north branch rancocas at pemberton, the millstone river at blackwells mills, the passaic river at millington and pine brook, and the rockaway river at boonton. Outside of the passaic river, flooding potential is low on our other mainstem rivers. So as the event unfolds tonight, look for minor flooding across areas of poor drainage and in low-lying areas. Some smaller creeks that have been prone to high water the last six months will be prone once again this weekend. This water will runoff make it into the above mentioned larger creeks and streams on Saturday night. Rises can be expected late tonight, Sunday, Sunday night, and maybe into Monday. If flooding occurs at any of our forecast points, it appears the flooding wouldn't initiate until Sunday night. Phi watches warnings advisories Pa... High wind warning from 2 pm Sunday to 6 pm est Monday for paz054-055-060>062-101-103-105. High wind watch from Sunday afternoon through Monday afternoon for paz070-071-102-104-106. Nj... High wind warning from 2 pm Sunday to 6 pm est Monday for njz001-007>010. High wind watch from Sunday afternoon through Monday afternoon for njz012>027. De... High wind watch from Sunday afternoon through Monday afternoon for dez001>004. Md... High wind watch from Sunday afternoon through Monday afternoon for mdz008-012-015-019-020. Marine... Small craft advisory from 6 am to 6 pm est Sunday for anz450>455. Gale warning from 6 pm Sunday to 6 pm est Monday for anz430- 431-452>455. Storm watch from Sunday evening through Monday afternoon for anz450-451. Small craft advisory from noon to 6 pm est Sunday for anz430- 431. Synopsis... O'brien near term... Miketta short term... Miketta long term... Meola aviation... Cms marine... Cms hydrology... Kruzdlo |
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 |
| MRCP1 - 8540433 - Marcus Hook, PA | 3 mi | 44 min | 41°F | 40°F | 1026.9 hPa | |||
| DELD1 - 8551762 - Delaware City, DE | 16 mi | 44 min | N 1.9 G 1.9 | 39°F | 35°F | 1027.1 hPa | ||
| RDYD1 - 8551910 - Reedy Point, DE | 17 mi | 44 min | 1026.6 hPa | |||||
| PHBP1 - 8545240 - Philadelphia, PA | 18 mi | 44 min | 42°F | 39°F | 1027.3 hPa | |||
| BDSP1 | 23 mi | 44 min | 41°F | 41°F | 1027.8 hPa | |||
| CHCM2 - 8573927 - Chesapeake City, MD | 27 mi | 44 min | E 7 G 8 | 39°F | 39°F | 1027.2 hPa | ||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 31 mi | 44 min | E 5.1 G 6 | 39°F | 38°F | 1027 hPa | ||
| BDRN4 - 8539094 - Burlington, Delaware River, NJ | 36 mi | 62 min | ENE 4.1 G 5.1 | 40°F | 38°F | 1027.8 hPa | ||
| NBLP1 - 8548989 - Newbold, PA | 43 mi | 44 min | ESE 1.9 G 5.1 | 41°F | 39°F | 1028.3 hPa | ||
| DRSD1 - Delaware Reserve, DE | 46 mi | 128 min | ENE 1.9 | 40°F | 1028 hPa | 36°F |
Wind History for Delaware City, DE
(wind in knots) EDIT (on/off) Help| 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 | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | |
| Last 24hr | NW G8 | NW | NW G7 | NW | N | NW | NW | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | E | E | E | NE | NE | N | NE |
| 1 day ago | NW G8 | NE | -- | SW | NW | W G6 | NW G11 | NW | NW | NW G10 | NW | NW G10 | N | NW | N | N | N | N | N | NW | N | NW G10 | NW | NW G10 |
| 2 days ago | E | NE | E | NE | NE | E | NE | N | N | NW | NW | W | SW | W | W | W | NW | W G5 | W G6 | SW | NW G14 | NW G13 | NW G16 | NW G14 |
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 | 12 mi | 44 min | ENE 4 | 10.00 mi | Overcast | 42°F | 28°F | 60% | 1027.7 hPa |
| Wilmington, New Castle County Airport, DE | 12 mi | 47 min | E 6 | 9.00 mi | Light Rain | 40°F | 33°F | 77% | 1027.5 hPa |
Wind History from ILG (wind in knots)
| 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 | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | |
| Last 24hr | NW | NW | NW | NW | NW | NW | NW | N | Calm | Calm | N | N | NE | NE | NE | NE | NE | NE | NE | NE | NE | E | E | SE |
| 1 day ago | W | NW | NW G18 | NW | NW | NW | NW | W | W | W | W | W | NW | NW | NW | NW | NW | NW | N | N | NW | N | NW | NW |
| 2 days ago | E | E | E | E | E | E | E | NE | NE | NE | NE | N | N | NW | W | W | W | W | W | W | W | SW | Calm | W |
Tide / Current Tables for Pedricktown, Oldmans Creek, New Jersey
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataPedricktown
Click for Map
Sat -- 04:02 AM EST 4.39 feet High Tide
Sat -- 06:43 AM EST Sunrise
Sat -- 09:22 AM EST Moonset
Sat -- 10:49 AM EST -0.44 feet Low Tide
Sat -- 04:26 PM EST 4.30 feet High Tide
Sat -- 05:46 PM EST Sunset
Sat -- 10:42 PM EST Moonrise
Sat -- 11:13 PM EST -0.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 04:02 AM EST 4.39 feet High Tide
Sat -- 06:43 AM EST Sunrise
Sat -- 09:22 AM EST Moonset
Sat -- 10:49 AM EST -0.44 feet Low Tide
Sat -- 04:26 PM EST 4.30 feet High Tide
Sat -- 05:46 PM EST Sunset
Sat -- 10:42 PM EST Moonrise
Sat -- 11:13 PM EST -0.37 feet Low 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 |
| 0.6 | 2 | 3.2 | 4 | 4.4 | 4.1 | 3.2 | 2.2 | 1.3 | 0.5 | -0.2 | -0.4 | 0.2 | 1.4 | 2.7 | 3.7 | 4.2 | 4.2 | 3.5 | 2.6 | 1.6 | 0.8 | 0.1 | -0.3 |
Tide / Current Tables for Philadelphia, Pennsylvania Current
EDIT (on/off) Help One Week of DataPhiladelphia
Click for Map
Sat -- 01:31 AM EST 2.06 knots Max Flood
Sat -- 04:42 AM EST -0.00 knots Slack
Sat -- 06:42 AM EST Sunrise
Sat -- 07:45 AM EST -2.14 knots Max Ebb
Sat -- 09:21 AM EST Moonset
Sat -- 11:50 AM EST 0.01 knots Slack
Sat -- 01:49 PM EST 1.99 knots Max Flood
Sat -- 05:02 PM EST -0.00 knots Slack
Sat -- 05:45 PM EST Sunset
Sat -- 08:07 PM EST -2.11 knots Max Ebb
Sat -- 10:41 PM EST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 01:31 AM EST 2.06 knots Max Flood
Sat -- 04:42 AM EST -0.00 knots Slack
Sat -- 06:42 AM EST Sunrise
Sat -- 07:45 AM EST -2.14 knots Max Ebb
Sat -- 09:21 AM EST Moonset
Sat -- 11:50 AM EST 0.01 knots Slack
Sat -- 01:49 PM EST 1.99 knots Max Flood
Sat -- 05:02 PM EST -0.00 knots Slack
Sat -- 05:45 PM EST Sunset
Sat -- 08:07 PM EST -2.11 knots Max Ebb
Sat -- 10:41 PM EST Moonrise
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 |
| 0.8 | 1.9 | 2 | 1.7 | 0.9 | -0.4 | -1.6 | -2.1 | -2.1 | -1.9 | -1.6 | -1.1 | 0.3 | 1.6 | 2 | 1.7 | 1.2 | 0.1 | -1.2 | -1.9 | -2.1 | -2 | -1.7 | -1.3 |
Weather Map and Satellite Images
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GOES 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
Wind Forecast for Philadelphia/Mount Holly, PA (16,3,4,5)
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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. |