|
Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 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 6:14AM | Sunset 7:55PM | Sunday August 18, 2019 6:21 PM EDT (22:21 UTC) | Moonrise 8:47PM | Moonset 7:58AM | Illumination 89% |  |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 316 Pm Edt Sun Aug 18 2019
Tonight..S winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms early, then a slight chance of showers and tstms early this evening. Patchy fog after midnight with vsby 1 to 3 nm.
Mon..S winds around 5 kt, becoming se in the afternoon. Waves 2 ft or less. Patchy fog in the morning with vsby 1 to 3 nm.
Mon night..SW 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 and tstms in the afternoon.
Tue night..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Wed..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Wed night..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Thu..W winds 5 to 10 kt. Waves 2 ft or less. A chance of showers. A chance of tstms in the afternoon.
Thu night..W winds around 5 kt, becoming N after midnight. Waves 2 ft or less. A chance of showers and tstms.
Fri..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers in the morning.
Fri night..N winds around 5 kt. Waves 2 ft or less. Winds and waves higher in and near tstms.
Tonight..S winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms early, then a slight chance of showers and tstms early this evening. Patchy fog after midnight with vsby 1 to 3 nm.
Mon..S winds around 5 kt, becoming se in the afternoon. Waves 2 ft or less. Patchy fog in the morning with vsby 1 to 3 nm.
Mon night..SW 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 and tstms in the afternoon.
Tue night..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Wed..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Wed night..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Thu..W winds 5 to 10 kt. Waves 2 ft or less. A chance of showers. A chance of tstms in the afternoon.
Thu night..W winds around 5 kt, becoming N after midnight. Waves 2 ft or less. A chance of showers and tstms.
Fri..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers in the morning.
Fri night..N winds around 5 kt. Waves 2 ft or less. Winds and waves higher in and near tstms.
ANZ400 316 Pm Edt Sun Aug 18 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Persistent southerly flow due to a bermuda high offshore will keep hot and humid conditions in place across the region through mid week. A slow moving cold front and associated low pressure will cross the region Thursday into Friday. This front will stall in the vicinity of our area then high pressure will build from the north into the weekend.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Persistent southerly flow due to a bermuda high offshore will keep hot and humid conditions in place across the region through mid week. A slow moving cold front and associated low pressure will cross the region Thursday into Friday. This front will stall in the vicinity of our area then high pressure will build from the north into the weekend.
7 Day Forecast for Marine Location Near Swedesboro , NJ
Hourly EDIT Helplocation: 39.72, -75.3 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 181916 afdphi area forecast discussion national weather service mount holly nj 316 pm edt Sun aug 18 2019 Synopsis Persistent southerly flow due to a bermuda high offshore will keep hot and humid conditions in place across the region through mid week. A slow moving cold front and associated low pressure will cross the region Thursday into Friday. This front will stall in the vicinity of our area then high pressure will build from the north into the weekend. Near term until 6 am Monday morning Bermuda high pressure remains anchored off the southeast u.S. Coast. A weak surface boundary lies across the northern half of the forecast area and extends back down through southeast pennsylvania and into the appalachians. Onshore flow ushers a warm and humid airmass into the region. Surface dewpoints are in the 70s for all but the southern poconos, and temperatures are in the 80s to low 90s. As a result, surface-based CAPE values range from 4000-5000 j kg. Some weak shortwave energy passing through the region will interact with that aforementioned boundary to touch off showers and thunderstorms across the region. Best chances lie along and east of i-95, where storms have already started. Effective bulk shear is generally on the order of 20 kt or less. Storms will not have much motion, and with pwats almost 2 inches, storms will be capable of gusty winds and heavy rain. Since these storms will be slow movers, any backbuilding and training could result in localized flooding. 12z NAM indicating a bullseye of QPF just north of i-195 in new jersey, and this seems to be correlated with that stationary front over the area. So that is something to keep an eye on going into this evening. Convection tapers off after sunset with loss of diurnal heating. A warm and humid night on tap with fog developing once again. A decaying MCS is moving through western pennsylvania and western new york, and should track north and west of the region late tonight. There may be some more showers and thunderstorms, especially across the far northern zones, late tonight. Short term 6 am Monday morning through Monday night Bermuda high remains offshore, and the hot and humid airmass remains over the region. Turning a bit warmer with highs in the low to mid 90s, except for the southern poconos, where highs will be in the 80s. In addition, dewpoints will be in the low to mid 70s, though with afternoon mixing, dewpoints should drop back into the lower 70s in the afternoon during peak heating of the day. Max heat index values will be in the upper 90s for most of the region, around 100 in the urban corridor, and 100 to as high as 105 in delmarva. Will keep heat advisory in effect for the urban corridor. Another shortwave passes through the region in the afternoon, touching off scattered showers and thunderstorms in the late afternoon through the early evening. Heavy rain is possible once again. Warm and humid Monday night with patchy fog possible once again. Long term Tuesday through Saturday The going thinking for the long term period remains largely the same. An active stretch of weather is likely from Tuesday through Thursday with several opportunities for convection. In addition, the heat will remain a concern as hot and humid conditions continue. On the synoptic level, our region will reside on the northwest periphery of a subtropical ridge and the bermuda high into midweek, before an approaching trough swings through out of the great lakes. This will push a strong cold front through the region with a major change in the air mass by the end of the week. On Tuesday, a dying surface boundary will be stalled over the region, with a shortwave trough approaching. This will yield a good opportunity for convection. The setup for Tuesday is concerning from a hydro perspective. Pattern bears strong resemblance to the maddox "type 2 frontal event" pattern which is one of three patterns well known to favor flash flooding in our region. One or more slow moving and potentially backbuilding rounds of convection may develop in the vicinity of this boundary on Tuesday, with activity likely continuing deep into the night (another hallmark of the maddox pattern just mentioned). With pwats rising near to above 2", it's hard to see there not being issues with flash flooding. Am not confident on which areas will have the best chance for activity, though if anything would probably favor the western half of the region at least during the daytime hours. With time, convective coverage may become fairly widespread. Cannot discount the severe risk Tuesday either. Weak shear should help limit the organization of storms. However, strong instability is likely to build, which should yield tall, slow moving storms with a threat for downbursts wet microbursts and possibly some threat for hail in the tallest storms. Hot weather will continue on Tuesday as the weak frontal boundary does not have any sort of notable cooling behind it. Many areas will see low 90s, with some mid 90s possible if cloud cover is less than forecast. Heat index values near to above 100 with a heat advisory remaining in place for the urban corridor. Very warm and muggy overnight with scattered to numerous storms continuing across the area. For Wednesday and Thursday, we will be watching the approach of a strong cold front as a trough moves out of the great lakes. |
Sensible weather outcomes will be largely related to the timing of the front, which has been a major question mark in the guidance. On Wednesday, a weak prefrontal trough should help initiate convection even with the front lagging a ways behind. Similar to Tuesday, not confident in what areas will be most favored for convection, but again expect scattered to potentially widespread coverage. The severe weather threat may increase on Wednesday, as wind fields improve and a strong upper jet streak moves over the great lakes, classic positioning for northeast and mid-atlantic severe weather. Given plenty of moisture still in place, could be more hydro concerns as well though storms should be faster moving. A potential wild card for Wednesday is that if activity Tuesday night does drag on until very late in the night, that could unexpectedly modify the environment for Wednesday. On Thursday, even if the front is more progressive, it still looks unlikely to clear the region until late in the day, so another round of convection is possible, this time favoring the southeastern half of the area. From a heat perspective, another hot day is likely Wednesday, though cloud cover should keep it a couple degrees cooler than Tuesday. It is possible another heat advisory will be needed for the urban corridor. Warm and humid again Wednesday night with lingering convection possible. Thursday, temperatures will be frontal dependent. It is possible drier and somewhat cooler air will start to filter in over the northwest half of the region especially if the front is faster. However, over the southeast half of the cwa, another warm and muggy day is more likely. For the period Thursday night through Sunday... Upper troughing and a closed upper low across southeastern canada will be moving slowly east with the mean flow turning west to northwesterly. At the surface, an associated cold front will be making its way through the region. The exact timing of this system and cold front are quite a bit uncertain at this point still, however it appears that the front will stall out near the southern portion of the forecast area Thursday night into early Friday. The front's passage will signal the end of what is shaping up to be a hot, humid, wet, and active week. In its wake, high pressure will build toward the north. Drier air and cooler temperatures are expected into the weekend with Sunday seeing the return of some humidity. Overall a mostly dry weekend is forecast. Aviation 19z Sunday through Friday The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Tonight... Scattered shra tsra in through this evening with MVFR or ifr conditions if a storm passes over a given terminal. Otherwise, vfr through this evening, then sub-vfr conditions late tonight in fog and stratus once again. South winds less than 10 kt, becoming lgt vrb tonight. Monday through Monday night... Morning fog and stratus, thenVFR. Scattered afternoon and evening shra tsra. Patchy fog possible Monday night. SW winds 5-10 kt. Outlook... Tuesday-Thursday... While prevailing conditions should beVFR, several opportunities will exist for showers and thunderstorms during this period. Periodic ceiling and visibility restrictions are likely. In addition, low clouds and fog are possible Tuesday night. Winds from Tuesday into Tuesday night should be generally light and variable. Southwesterly flow develops late Tuesday night and continues into at least early Thursday. A shift to westerly winds is possible with a frontal passage Thursday. Speeds generally running 5 to 10 kt with gusts remaining under 20 kt. Marine Sub-sca conditions over the waters tonight, Monday, and Monday night. Seas will be around 3 feet on the ocean and 1-2 feet on de bay. South winds 10-15 kt. Scattered showers and thunderstorms into this evening, then again Monday afternoon and evening. Patchy near shore fog possible late tonight, and again Monday night. Outlook... Tuesday-Thursday... Conditions are expected to remain below sca criteria. Southwesterly winds will gust near to just above 20 kt from Wednesday afternoon through Wednesday night. Otherwise, the winds should be steady from the south or southwest at around 10 to 15 kt. Seas 2 to 4 ft, though cannot rule out a period of near 5 ft seas Wednesday night into Thursday. Rip currents... there is a low risk for the development of dangerous rip currents at area beaches into this evening with 2 ft swell and southerly flow around 10 kts. Phi watches warnings advisories Pa... Heat advisory from 10 am Monday to 8 pm edt Tuesday for paz070- 071-102-104-106. Nj... Heat advisory from 10 am Monday to 8 pm edt Tuesday for njz015- 017>019. De... Heat advisory from 10 am Monday to 8 pm edt Tuesday for dez001. Md... None. Marine... None. Synopsis... Staarmann near term... Mps short term... Mps long term... O'brien staarmann aviation... Mps o'brien staarmann marine... Mps o'brien staarmann |
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 | 9 mi | 51 min | 83°F | 82°F | 1014.8 hPa | |||
| PHBP1 - 8545240 - Philadelphia, PA | 17 mi | 51 min | 88°F | 81°F | 1014.4 hPa | |||
| DELD1 - 8551762 - Delaware City, DE | 18 mi | 57 min | N 2.9 G 5.1 | 80°F | 80°F | 1015 hPa | ||
| RDYD1 - 8551910 - Reedy Point, DE | 18 mi | 57 min | 82°F | 83°F | 1014.3 hPa | |||
| BDSP1 | 21 mi | 51 min | 86°F | 82°F | 1015 hPa | |||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 29 mi | 57 min | SSE 18 G 19 | 82°F | 84°F | 1016 hPa | ||
| CHCM2 - 8573927 - Chesapeake City, MD | 30 mi | 51 min | N 1 G 2.9 | 82°F | 84°F | 1015.1 hPa | ||
| BDRN4 - 8539094 - Burlington, Delaware River, NJ | 34 mi | 45 min | WSW 1 G 2.9 | 81°F | 80°F | 1014.8 hPa | ||
| NBLP1 - 8548989 - Newbold, PA | 41 mi | 51 min | W 1 G 1.9 | 79°F | 80°F | 1015.5 hPa | ||
| DRSD1 - Delaware Reserve, DE | 44 mi | 111 min | ESE 7 | 87°F | 1015 hPa | 76°F | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 46 mi | 51 min | SSE 8 | 65°F | 1015 hPa | 55°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. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Philadelphia, Philadelphia International Airport, PA | 12 mi | 27 min | WSW 7 | 10.00 mi | Mostly Cloudy | 86°F | 73°F | 65% | 1014.9 hPa |
| Wilmington, New Castle County Airport, DE | 16 mi | 30 min | W 7 | 10.00 mi | Fair | 82°F | 73°F | 74% | 1015.1 hPa |
Link to 5 minute data for KPHL
Wind History from PHL (wind in knots)
| 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 | 5 PM | |
| Last 24hr | SW | S | S | S | S | S | S | S | S | S | S | S | SE | S | S | SW | SW | |||||||
| 1 day ago | SE | SE | SE | SE | SE | E | E | E | Calm | E | E | E | E | E | NE | SE | Calm | SE | S | |||||
| 2 days ago | SE | SE | SE | E | SE | E | E | NE | E | NE | NE | Calm | Calm | SE | SE |
Tide / Current Tables for Auburn, Oldmans Creek, New Jersey
EDIT Weekend mode (on/off) (on/off) Help One Week of DataAuburn
Click for Map
Sun -- 06:02 AM EDT 2.99 feet High Tide
Sun -- 06:16 AM EDT Sunrise
Sun -- 08:58 AM EDT Moonset
Sun -- 12:06 PM EDT 0.24 feet Low Tide
Sun -- 06:27 PM EDT 2.71 feet High Tide
Sun -- 07:53 PM EDT Sunset
Sun -- 09:47 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 06:02 AM EDT 2.99 feet High Tide
Sun -- 06:16 AM EDT Sunrise
Sun -- 08:58 AM EDT Moonset
Sun -- 12:06 PM EDT 0.24 feet Low Tide
Sun -- 06:27 PM EDT 2.71 feet High Tide
Sun -- 07:53 PM EDT Sunset
Sun -- 09:47 PM EDT 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 |
| 0.4 | 0.7 | 1.3 | 2 | 2.5 | 2.9 | 3 | 2.8 | 2.2 | 1.5 | 0.9 | 0.5 | 0.2 | 0.4 | 0.9 | 1.5 | 2.1 | 2.5 | 2.7 | 2.6 | 2.2 | 1.5 | 1 | 0.6 |
Tide / Current Tables for Philadelphia, Pennsylvania Current
EDIT (on/off) Help One Week of DataPhiladelphia
Click for Map
Sun -- 01:09 AM EDT 1.31 knots Max Flood
Sun -- 04:36 AM EDT -0.00 knots Slack
Sun -- 06:14 AM EDT Sunrise
Sun -- 07:57 AM EDT -1.46 knots Max Ebb
Sun -- 08:57 AM EDT Moonset
Sun -- 12:05 PM EDT 0.00 knots Slack
Sun -- 01:39 PM EDT 1.11 knots Max Flood
Sun -- 05:06 PM EDT -0.00 knots Slack
Sun -- 07:53 PM EDT Sunset
Sun -- 08:21 PM EDT -1.46 knots Max Ebb
Sun -- 09:46 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:09 AM EDT 1.31 knots Max Flood
Sun -- 04:36 AM EDT -0.00 knots Slack
Sun -- 06:14 AM EDT Sunrise
Sun -- 07:57 AM EDT -1.46 knots Max Ebb
Sun -- 08:57 AM EDT Moonset
Sun -- 12:05 PM EDT 0.00 knots Slack
Sun -- 01:39 PM EDT 1.11 knots Max Flood
Sun -- 05:06 PM EDT -0.00 knots Slack
Sun -- 07:53 PM EDT Sunset
Sun -- 08:21 PM EDT -1.46 knots Max Ebb
Sun -- 09:46 PM EDT 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 |
| 0.6 | 1.3 | 1.1 | 0.9 | 0.5 | -0.4 | -1.1 | -1.4 | -1.5 | -1.4 | -1.3 | -1.1 | -0.1 | 0.9 | 1.1 | 0.9 | 0.7 | 0.1 | -0.8 | -1.3 | -1.4 | -1.4 | -1.2 | -1 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 (18,4,5,8)
(on/off) Help
Ground Weather Radar Station Philadelphia, PA
(on/off) Help
Ad by Google
|
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. |