Friday, July3, 2020
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Marine Weather and Tides
Fenwick Island, DE

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:42AMSunset 8:31PM Friday July 3, 2020 11:01 PM EDT (03:01 UTC) Moonrise 6:17PMMoonset 3:06AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ455 Coastal Waters From Cape Henlopen To Fenwick Island De Out 20 Nm- 1002 Pm Edt Fri Jul 3 2020
Overnight..SW winds 5 to 10 kt, becoming nw, then becoming N late. Seas 2 ft or less. A chance of tstms late this evening and early morning. SWell mainly from the se with a dominant period of 8 seconds.
Sat..NE winds 10 to 15 kt. Gusts up to 20 kt in the late morning and early afternoon. Seas around 3 ft. SWell mainly from the se with a dominant period of 9 seconds.
Sat night..E winds 5 to 10 kt, becoming ne late. Seas around 3 ft. SWell mainly from the se with a dominant period of 9 seconds.
Sun..N winds around 5 kt, becoming ne around 5 kt late in the morning, then becoming se in the afternoon. Seas 2 ft or less. SWell mainly from the se with a dominant period of 9 seconds.
Sun night..SW winds around 10 kt. Seas 2 ft or less.
Mon..SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 ft or less.
Mon night..S winds 10 to 15 kt. Seas around 3 ft in the evening, then 2 ft or less.
Tue..S winds 10 to 15 kt. Seas 2 ft or less, then around 3 ft in the afternoon.
Tue night..S winds 10 to 15 kt. Seas around 3 ft.
Wed..S winds 10 to 15 kt. Seas around 3 ft.
Wed night..S winds 10 to 15 kt. Seas around 3 ft. Winds and seas higher in and near tstms.
ANZ400 1002 Pm Edt Fri Jul 3 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A backdoor cold front will move across the area this evening and overnight, then push to our south through Saturday. Another backdoor front may move into the area Sunday into Monday, before lifting back northward into Tuesday. A very warm and humid week is expected next week as a southerly flow develops, although there is the potential for a coastal low along the east coast late next week.


7 Day Forecast for Marine Location Near Fenwick Island, DE
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location: 38.43, -75.07     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 040216 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 1016 PM EDT Fri Jul 3 2020

SYNOPSIS. A backdoor cold front will move across the area this evening and overnight, then push to our south through Saturday. Another backdoor front may move into the area Sunday into Monday, before lifting back northward into Tuesday. A very warm and humid week is expected next week as a southerly flow develops, although there is the potential for a coastal low along the east coast late next week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/. Late Evening Update .

Convection is winding down across the area. A line of thunderstorms approaching the New Jersey coast will be offshore in the next hour or so. A few spotty showers may linger behind it for another hour or two. Otherwise, drying out overnight but remaining warm and muggy. Skies becoming mostly cloudy as a stratus deck rotates in from northeast to southwest Previous discussion follows.

Evening Update .

Updated the grids a little early this evening to reflect ongoing radar and other observational trends. Increased PoPs across much of the north as satellite and radar show multiple complexes of thunderstorms approaching the area. CAM guidance has been essentially useless on this activity, particularly the complex over eastern Pennsylvania, so am mainly just going by latest trends in the obs at this point. See no obvious reason for this activity to fall apart in the next hour or two. We really mixed out today in terms of dew points towards the urban corridor, which is limiting instability there. So tend to think activity will weaken, though perhaps not altogether dissipate, as it approaches the PHL metro later on, especially as daytime heating is lost. Also watching storms moving down from the north out of New York, towards northern NJ. A little more of a signal for this in the CAM guidance and expect it will continue to drop down into the northern zones through the evening before starting to weaken as daytime heating is lost. Given upstream trends some storms could be strong to severe in the northern and western zones the next few hours, with a primary threat of damaging winds.

Otherwise, updated temps/dew points to reflect latest trends, mainly bumping the temps up the next couple hours to reflect what remains a very hot early evening across the area. Previous discussion follows .

Hot day in progress with moderate amounts of humidity. Scattered showers across the northern areas earlier have dried up recently. More showers/tstms across the N will probably drop/develop southward into our nrn counties by the evening and then scatter around most areas before decreasing after sunset. Locally heavy rains and some gusty winds are possible. Lows tonight will only drop into the 70s for metro Philadelphia and Delmarva. Other areas will fall into the mid/upper 60s. Winds will become N to NE overnight. Patchy fog may develop in a few areas where evening rains fall.

SHORT TERM /6 AM SATURDAY MORNING THROUGH 6 PM SATURDAY/. Following the weak front that crosses the area Friday night, drier and slightly cooler air will be across the area Saturday. This will probably be the most comfortable day of the next several with highs expected to remain in the 80s and dew points mostly in the 60s, so overall conditions will not be that oppressive. A minor vort max will drop south from nrn PA/srn NY during the afternoon. It's possible that a couple sct showers could develop, so we'll just keep the (mostly) slight chc pops in the afternoon fcst for now.

LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/. The long term period is forecast to be quite warm, with building humidity each day. Each day through the extended is forecast to be above normal. There is also a chance of rain each day, but it will not be a washout by any means.

On Sunday, the warm up beings again as the first backdoor front will be well to our south, before another approaches from the north. There is not much moisture forecast, nor any strong short wave/vorticity impulses expected, so Sunday is expected to be precipitation free.

By Monday, a second backdoor front approaches from the north, while moisture increases, along with a couple of short waves/vorticity impulses that may clip our northern areas. This could lead to a few scattered or isolated showers and thunderstorms during the afternoon.

By Tuesday, the backdoor front will move well to our north, and steady return flow will develop for Tuesday through at least Wednesday. This will keep warm temperatures across the area, but also lead to increasing humidity. Multiple short waves/vorticity impulses will move across the area for Tuesday- Wednesday, and will combine with an increase in moisture and lead to higher chances of showers and thunderstorms.

Questions return for the end of the week however. The ECMWF and Canadian show a coastal low moving northward along the east coast, while the GFS dissipates the low across the southeast states, but does push moisture across the Mid-Atlantic states. There will continue to be an enhanced chance for rain for Thursday through Friday.

AVIATION /02Z SATURDAY THROUGH WEDNESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Through tonight . Mainly VFR through around 06z. Development of an MVFR stratus deck around 2000 feet is expected in most areas after that time. Winds generally light and variable or light from the northeast. Moderate confidence.

Saturday . MVFR early then slowly diminishing CIGS with VFR in most areas (except coastal areas) by noon. NE to E winds 5 to 10 knots mostly. Medium confid.

Outlook .

Saturday night-Sunday night . Generally VFR expected.

Monday-Wednesday . Mostly VFR. A chance of showers and thunderstorms each afternoon and evening which may temporarily lead to lower conditions.

MARINE. Winds and seas will remain below SCA conditions tonight and Saturday. The only weather hazard would be any scattered thunderstorm that develops or moves across the area. Winds and seas will be higher in any tstm. The activity is expected to be sct at best late this afternoon and early tonight. Winds will turn onshore tonight and remain E or NE into Saturday.

OUTLOOK .

Saturday night-Wednesday . Conditions expected to remain below advisory levels through the period, although winds could gust around 20 knots at times. There is a chance of showers and thunderstorms during the late afternoon and evening Monday- Wednesday.

Rip currents .

Today . Low Tomorrow . Low to moderate.

TIDES/COASTAL FLOODING. Astronomical high tide levels will continue to rise as there will be a full moon this weekend. The evening high tides are over a foot higher than those in the morning.

Have issued a coastal flood advisory for the Atlantic coast and the Delaware Bay as the latest guidance suggests water levels will just barely get to advisory levels with this evening's high tide. The wind has not yet shifted to onshore, but should within the next few hours.

Continued northeasterly and easterly flow could result in additional coastal flooding with the high tide cycles Saturday and Sunday evening in the same areas, though confidence is low at this time, so will hold off on extending the advisory for now.

For tidal portions of the Delaware River, at this point it looks like water levels will stay below advisory criteria, but will monitor the levels in the Delaware Bay closely this evening to see if it needs to be expanded.

Tidal flooding is not expected on the upper eastern shore of Chesapeake Bay.

EQUIPMENT. The NOAA Weather Radio All Hazards broadcast from Hibernia Park, PA (WNG704) remains off the air until further notice due to damage to the antenna during the June 3 Derecho.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . Coastal Flood Advisory until midnight EDT tonight for NJZ012>014-020>027. DE . Coastal Flood Advisory until midnight EDT tonight for DEZ002>004. MD . None. MARINE . None.

Synopsis . Robertson Near Term . O'Brien/O'Hara Short Term . O'Hara Long Term . Robertson Aviation . O'Brien/O'Hara/Robertson Marine . MPS/O'Hara/Robertson Tides/Coastal Flooding . Equipment .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OCSM2 6 mi182 min 2 ft
OCIM2 - 8570283 - Ocean City Inlet, MD 7 mi62 min SW 2.9 G 2.9 79°F 77°F1011.1 hPa (+0.5)
44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ 20 mi72 min 2 ft
LWSD1 - 8557380 - Lewes, DE 25 mi62 min SSW 2.9 G 8 84°F 76°F1010.1 hPa (+0.5)
CMAN4 - 8536110 - Cape May, NJ 38 mi62 min SSE 4.1 G 5.1 78°F 73°F1009.7 hPa (+0.7)
BRND1 - 8555889 - Brandywine Shoal Light, DE 39 mi62 min SSE 6 G 8 1010.3 hPa (+0.6)

Wind History for Ocean City Inlet, MD
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ocean City, Ocean City Municipal Airport, MD9 mi69 minSW 310.00 miA Few Clouds79°F73°F82%1010.3 hPa
Georgetown - Delaware Coastal Airport, DE24 mi68 minW 410.00 miFair86°F68°F55%1010 hPa
Salisbury, Salisbury-Ocean City Wicomico County Regional Airport, MD24 mi68 minN 010.00 miFair79°F68°F69%1010.4 hPa

Link to 5 minute data for KOXB

Wind History from OXB (wind in knots)
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Last 24hrW5W4W6W7W7NW6NW6NW6NW7NW7N7N8N6E7E7E7SE9SE6S75SW5S3SW3SW3
1 day agoCalmN3NW3CalmCalmCalmCalmNW3NW4NW5N85E8E7E9E6SE645S6SW6SW6SW6W4
2 days agoCalmS3S44SW3CalmSW4CalmCalmW6N3E4E5S3Calm4SE4S5CalmE8S3CalmSW3Calm

Tide / Current Tables for Fenwick Island Light, Delaware
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Fenwick Island Light
Click for Map
Fri -- 12:48 AM EDT     -0.17 feet Low Tide
Fri -- 04:06 AM EDT     Moonset
Fri -- 05:41 AM EDT     Sunrise
Fri -- 06:45 AM EDT     3.81 feet High Tide
Fri -- 12:51 PM EDT     -0.07 feet Low Tide
Fri -- 07:10 PM EDT     4.91 feet High Tide
Fri -- 07:17 PM EDT     Moonrise
Fri -- 08:27 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-0.20.31.22.233.73.83.42.61.70.80.2-0.10.41.32.53.64.54.94.73.92.81.7

Tide / Current Tables for Delaware Bay Entrance, Delaware Current
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Delaware Bay Entrance
Click for Map
Fri -- 12:17 AM EDT     -1.74 knots Max Ebb
Fri -- 03:23 AM EDT     0.00 knots Slack
Fri -- 04:05 AM EDT     Moonset
Fri -- 05:40 AM EDT     Sunrise
Fri -- 05:59 AM EDT     1.48 knots Max Flood
Fri -- 09:06 AM EDT     -0.00 knots Slack
Fri -- 12:28 PM EDT     -1.42 knots Max Ebb
Fri -- 03:10 PM EDT     0.00 knots Slack
Fri -- 06:12 PM EDT     1.88 knots Max Flood
Fri -- 07:18 PM EDT     Moonrise
Fri -- 08:28 PM EDT     Sunset
Fri -- 09:35 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.7-1.6-1.1-0.30.51.21.51.30.70.1-0.6-1.1-1.4-1.4-0.9-0.10.71.51.91.71.20.5-0.3-1

Weather Map
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wmap_A
GEOS 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 (23,6,7,8)
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Ground Weather Radar Station Dover AFB, DE
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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 numerous 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.