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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 5:49AM | Sunset 8:26PM | Friday July 19, 2019 7:02 PM EDT (23:02 UTC) | Moonrise 9:22PM | Moonset 7:15AM | Illumination 92% |  |
ANZ431 Delaware Bay Waters South Of East Point Nj To Slaughter Beach De- 628 Pm Edt Fri Jul 19 2019
Tonight..SW winds 5 to 10 kt. Waves 2 ft or less.
Sat..W winds 5 to 10 kt, becoming S late. Waves 2 ft or less.
Sat night..SW winds 5 to 10 kt. Waves 2 ft or less.
Sun..SW winds 5 to 10 kt. Waves 2 ft or less.
Sun night..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Mon..SW winds 5 to 10 kt. Waves 2 ft or less. Showers and tstms likely.
Mon night..W winds 5 to 10 kt. Waves 2 ft or less. Showers and tstms likely.
Tue..NW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Tue night..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms in the evening.
Wed..N winds 5 to 10 kt, becoming nw in the afternoon. Waves 2 ft or less.
Wed night..NW winds around 5 kt. Waves 2 ft or less. Winds and waves higher in and near tstms.
Tonight..SW winds 5 to 10 kt. Waves 2 ft or less.
Sat..W winds 5 to 10 kt, becoming S late. Waves 2 ft or less.
Sat night..SW winds 5 to 10 kt. Waves 2 ft or less.
Sun..SW winds 5 to 10 kt. Waves 2 ft or less.
Sun night..SW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Mon..SW winds 5 to 10 kt. Waves 2 ft or less. Showers and tstms likely.
Mon night..W winds 5 to 10 kt. Waves 2 ft or less. Showers and tstms likely.
Tue..NW winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms.
Tue night..N winds 5 to 10 kt. Waves 2 ft or less. A chance of showers and tstms in the evening.
Wed..N winds 5 to 10 kt, becoming nw in the afternoon. Waves 2 ft or less.
Wed night..NW winds around 5 kt. Waves 2 ft or less. Winds and waves higher in and near tstms.
ANZ400 628 Pm Edt Fri Jul 19 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Bermuda high pressure will remain in control of the weather much of the weekend. A few weak system will move north of the area tonight and Saturday. A strong cold front will approach Monday and cross the area by Tuesday. Cooler and drier air will follow this front and remain into the middle of next week. High pressure will settle across the area from the great lakes region.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Bermuda high pressure will remain in control of the weather much of the weekend. A few weak system will move north of the area tonight and Saturday. A strong cold front will approach Monday and cross the area by Tuesday. Cooler and drier air will follow this front and remain into the middle of next week. High pressure will settle across the area from the great lakes region.
7 Day Forecast for Marine Location Near Ellendale, DE
Hourly EDIT Helplocation: 38.86, -75.45 debug
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kphi 192238 afdphi area forecast discussion national weather service mount holly nj 638 pm edt Fri jul 19 2019 Synopsis Bermuda high pressure will remain in control of the weather much of the weekend. A few weak system will move north of the area tonight and Saturday. A strong cold front will approach Monday and cross the area by Tuesday. Cooler and drier air will follow this front and remain into the middle of next week. High pressure will settle across the area from the great lakes region. Near term until 6 am Saturday morning 630 pm update: monitoring storms in southern new york and northern pennsylvania early this evening. Not too impressed with the hi-res simulations of this convection thus far. However, the storms appear to be strongly tied to diurnal heating. Suspect a general weakening trend will be in the cards during the evening hours, though a couple of the storms may reach far northern portions of the CWA between 8 pm and midnight (before suspected complete dissipation). Current forecast looks reasonable, and no significant changes were made at this time. Previous discussion... main story in this near term period is the building mid-level ridge and the excessive heat. Latest 2 pm observations show dewpoints in the middle to upper 70s and heat indices in excess of 105. In the most urban environments overnight tonight, temperatures may not drop below 80 degrees. And that's the issue... Lows around 80 will offer very little recovery before temperatures climb once again after daybreak Saturday. Elsewhere, low temperatures will be in the 70s, this includes the poconos and NW nj. It appears the majority of the region will remain lightly capped into this evening. This will help to prevent convection. But there are some showers and thunderstorms developing out ahead of the mcv well to our west. These showers and thunderstorms may clip our zones tonight north of i-78. Skies will be partly cloudy north to mostly clear south overnight. Winds will be light from the southwest. Some light fog is possible around daybreak. Short term 6 am Saturday morning through 6 pm Saturday Excessive heat warning remains in effect for the entire area. Saturday will be the hottest day of the year thus far (Sunday could top Saturday). Actual air temperatures will be in the 90s. The most urban areas will approach 100. Dewpoints will be similar to today, in the mid to upper 70s. So with the added heat, apparent temperatures will exceed today and climb into the 110 to 115 range. Winds will be out of the west southwest 10 mph or less. There will be little breeze to offset the heat. The exception will be the beaches, close to the water and where a seabreeze should develop. With the westerly flow, the seabreeze will not penetrate far inland. With all the heat, soundings show a capped environment most of the day tomorrow. There may be a little window of opportunity for convection to develop across terrain or the surface trof. No more that slight chance pops have been added across our western zones. Most will remain dry. Long term Saturday night through Friday Excessive heat warning remains in effect through Sunday. A transition from heat wave back to below normal temperatures during the long term. As usual, a round of tstms will occur during the transition. The extremely humid air mass will cause the tstms to be accompanied by heavy rains and possible flooding. Sat night... Mostly fair but a few showers tstms possible across the southern poconos. Hazy. Hot and humid. Lows in the upper 70s to low 80s. Sunday... Continued hot and humid, but TSTM chances higher then sat with an approaching cold front nw. Highs again upper 90s with some 100's in some areas. Excessive heat warnings will continue. Sunday night thru Monday night... A cold front slowly crosses the area. Occasional tstms with severe weather and flooding possible. Highs Monday about 10 degrees cooler than Sunday (mostly low 90s), but humidity still high. Tuesday and Wednesday... A few showers early across delmarva, but overall fair and much more comfortable. Highs will be a little below normal with readings Tue Wed in the low mid 80s. Thu fri... Much uncertainty. Temperatures back near normal. Mostly fair, can't rule out a few afternoon showers both days. Aviation 00z Saturday through Wednesday |
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg, kmiv, kacy and surrounding areas. Tonight... MainlyVFR. There could be some MVFR visibilities across the climatologically favored terminals toward daybreak. Variable wind 5 kt or less. Saturday... GenerallyVFR. MVFR is possible due to visibility restrictions in haze... Mainly in the morning. West-southwest wind 5 to 10 kt. Outlook... Saturday night... Hazy. MVFR vsbys possible. Sunday thru Tuesday... Sct tstms with low vsbys and CIGS possible. MVFR haze outside of the showers tstms. Best chc for tstms Monday. Wed...VFR. Fair weather. Marine Tonight... Sub-sca conditions expected. There could be some wind gusts from the southwest in excess of 20 kt this evening, but they will subside into the 10 to 15 kt range overnight. Seas will be in the 3 to 4 foot range. Saturday... Sub-sca conditions expected. Winds less than 10 kt with seas 2 to 3 feet. Outlook... winds will remain well below SCA criteria Saturday night and early Sunday. After that, winds and seas will increase, but probably still remain sub-sca as a cold front approaches the waters. Thunderstorms with strong winds gusts are possible Monday into Tuesday. Rip currents... breaking waves around 2 to 3 feet are expected along with a medium period south to southeast swell. As a result, there should be a low risk for the development of dangerous rip currents for the rest of today. Conditions are forecast to be similar on Saturday, with the low risk expected to continue. Climate Record maximum high and low temperatures for: 7 19 site high year low year abe 99 1930 74 2013 acy 98 1963 79 2013 phl 100 1930 81 2013 ilg 100 1999 81 2013 rdg 100 1930 78 1952 ttn 98 2011 79 2013 mpo 92 1991 70 2013 ged 101 1953 77 2013 7 20 site high year low year abe 101 1980 76 1942 acy 97 1991 79 2015 phl 99 1930 81 2015 ilg 100 1895 79 2015 rdg 100 1980 77 1942 ttn 99 1980 78 2015 mpo 93 1980 69 1988 ged 100 1977 81 2013 7 21 site high year low year abe 101 1980 75 1980 acy 99 1981 77 1991 phl 103 1930 79 2017 ilg 102 1957 77 1972 rdg 102 2011 77 2011 ttn 101 1930 78 1980 mpo 94 2011 72 2011 ged 101 1957 79 2017 Phi watches warnings advisories Pa... Excessive heat warning until 10 pm edt Sunday for paz054-055- 060>062-070-071-101>106. Nj... Excessive heat warning until 10 pm edt Sunday for njz001- 007>010-012>027. De... Excessive heat warning until 10 pm edt Sunday for dez001>004. Md... Excessive heat warning until 10 pm edt Sunday for mdz008-012- 015-019-020. Marine... None. Synopsis... O'hara near term... Cms kruzdlo short term... Kruzdlo long term... O'hara aviation... Kruzdlo o'hara marine... Kruzdlo o'hara climate... 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 |
| LWSD1 - 8557380 - Lewes, DE | 18 mi | 45 min | W 8.9 G 11 | 93°F | 77°F | 1012.1 hPa | ||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 20 mi | 45 min | 1012.3 hPa | |||||
| CMAN4 - 8536110 - Cape May, NJ | 27 mi | 45 min | SSE 6 G 7 | 83°F | 77°F | 1011.6 hPa | ||
| CA2 - 8571892 - Cambridge, MD | 38 mi | 51 min | 93°F | 88°F | 1012 hPa | |||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 41 mi | 51 min | SSW 12 G 13 | 77°F | 78°F | 1013.2 hPa | ||
| OCSM2 | 41 mi | 183 min | 2 ft | |||||
| 44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ | 48 mi | 73 min | S 9.7 G 12 | 81°F | 78°F | 3 ft | 1012.4 hPa (-1.2) | |
| RDYD1 - 8551910 - Reedy Point, DE | 49 mi | 57 min | 93°F | 85°F | 1010.9 hPa | |||
| TCBM2 - 8573364 - Tolchester Beach, MD | 49 mi | 57 min | SSW 7 G 14 | 92°F | 87°F | 1011.7 hPa |
Wind History for Lewes, DE
(wind in knots) EDIT (on/off) Help| 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 | 6 PM | |
| Last 24hr | W | N G11 | S | S | S | W G10 | SW G8 | W G8 | W G10 | W | NW | W | W | -- | NE | NE | NE | NE | E | E G8 | SE G13 | SE G11 | W G14 | W G15 |
| 1 day ago | SW G15 | SW G9 | W G22 | SE | S G11 | S G16 | S G11 | S G11 | S G8 | S G8 | S G10 | S G8 | S | S G9 | SW G13 | SW G11 | SW G13 | W G17 | SW G11 | SW G13 | S G7 | SW G12 | SW G11 | W G12 |
| 2 days ago | S G8 | S G9 | SW G7 | SW G8 | SW G8 | SW | SW G8 | SW G8 | SW G11 | SW G10 | SW | SW G8 | SW G9 | SW G11 | SW G12 | SW G8 | W G11 | SW G11 | W G13 | W | SW G19 | SW G17 | W G18 | SW G17 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Georgetown - Delaware Coastal Airport, DE | 12 mi | 69 min | W 6 | 10.00 mi | Fair | 95°F | 70°F | 44% | 1012.2 hPa |
| Dover Air Force Base, DE | 19 mi | 67 min | SW 7 | 10.00 mi | Fair | 93°F | 71°F | 50% | 1012.1 hPa |
Wind History from GED (wind in knots)
| 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 | 6 PM | |
| Last 24hr | SW | SW | S | SE | SW | W | Calm | W | SW | SW | Calm | SW | Calm | Calm | SW | SW G15 | SW | W | ||||||
| 1 day ago | SW | S | N G16 | SW | Calm | SE | SW | S | S | S | S | S | S | S | SW | SW | W | W | SW | SW | SW | SW | SW | SW |
| 2 days ago | S | S | S | SW | SW | S | S | SW | S | S | SW | S | SW | SW | SW | SW | S | SW | SW | W G17 | SW G18 | SW G20 | SW G19 | SW G21 |
Tide / Current Tables for Mispillion River entrance, Delaware Bay, Delaware
EDIT Weekend mode (on/off) (on/off) Help One Week of DataMispillion River entrance
Click for Map
Fri -- 05:50 AM EDT Sunrise
Fri -- 05:57 AM EDT 0.23 feet Low Tide
Fri -- 08:14 AM EDT Moonset
Fri -- 11:32 AM EDT 4.22 feet High Tide
Fri -- 05:46 PM EDT 0.37 feet Low Tide
Fri -- 08:23 PM EDT Sunset
Fri -- 10:21 PM EDT Moonrise
Fri -- 11:46 PM EDT 5.29 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 05:50 AM EDT Sunrise
Fri -- 05:57 AM EDT 0.23 feet Low Tide
Fri -- 08:14 AM EDT Moonset
Fri -- 11:32 AM EDT 4.22 feet High Tide
Fri -- 05:46 PM EDT 0.37 feet Low Tide
Fri -- 08:23 PM EDT Sunset
Fri -- 10:21 PM EDT Moonrise
Fri -- 11:46 PM EDT 5.29 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 |
| 5.3 | 4.6 | 3.6 | 2.4 | 1.2 | 0.5 | 0.2 | 0.6 | 1.4 | 2.5 | 3.5 | 4.1 | 4.2 | 3.8 | 3.1 | 2.1 | 1.2 | 0.5 | 0.4 | 0.8 | 1.8 | 3 | 4.3 | 5.1 |
Tide / Current Tables for Delaware Bay Entrance, Delaware Current
EDIT (on/off) Help One Week of DataDelaware Bay Entrance
Click for Map
Fri -- 12:06 AM EDT -0.00 knots Slack
Fri -- 03:36 AM EDT -1.38 knots Max Ebb
Fri -- 05:50 AM EDT Sunrise
Fri -- 06:47 AM EDT 0.00 knots Slack
Fri -- 08:13 AM EDT Moonset
Fri -- 09:30 AM EDT 1.13 knots Max Flood
Fri -- 12:28 PM EDT -0.00 knots Slack
Fri -- 03:40 PM EDT -1.05 knots Max Ebb
Fri -- 06:18 PM EDT 0.00 knots Slack
Fri -- 08:22 PM EDT Sunset
Fri -- 09:33 PM EDT 1.39 knots Max Flood
Fri -- 10:20 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:06 AM EDT -0.00 knots Slack
Fri -- 03:36 AM EDT -1.38 knots Max Ebb
Fri -- 05:50 AM EDT Sunrise
Fri -- 06:47 AM EDT 0.00 knots Slack
Fri -- 08:13 AM EDT Moonset
Fri -- 09:30 AM EDT 1.13 knots Max Flood
Fri -- 12:28 PM EDT -0.00 knots Slack
Fri -- 03:40 PM EDT -1.05 knots Max Ebb
Fri -- 06:18 PM EDT 0.00 knots Slack
Fri -- 08:22 PM EDT Sunset
Fri -- 09:33 PM EDT 1.39 knots Max Flood
Fri -- 10:20 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 |
| 0.1 | -0.6 | -1 | -1.3 | -1.4 | -1 | -0.5 | 0.1 | 0.7 | 1.1 | 1.1 | 0.8 | 0.3 | -0.3 | -0.7 | -1 | -1 | -0.7 | -0.2 | 0.4 | 0.9 | 1.3 | 1.4 | 1 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 (19,4,5,8)
(on/off) Help
Ground Weather Radar Station Dover AFB, DE
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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. |