Monday, August26, 2019 L-36.com


Marine Weather and Tides
Dewey Beach, DE

Version 3.4
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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 6:25AMSunset 7:43PM Monday August 26, 2019 5:33 AM EDT (09:33 UTC) Moonrise 12:49AMMoonset 3:58PM Illumination 18% Phase: Waning Crescent; Moon at 25 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 Expires:201908261915;;223540 Fzus51 Kphi 260739 Cwfphi Coastal Waters Forecast National Weather Service Mount Holly Nj 339 Am Edt Mon Aug 26 2019 Sandy Hook Nj To Fenwick Island De To 20 Nm Offshore And Delaware Bay Anz454-455-261915- Coastal Waters From Cape May Nj To Cape Henlopen De Out 20 Nm- Coastal Waters From Cape Henlopen To Fenwick Island De Out 20 Nm- 339 Am Edt Mon Aug 26 2019
.small craft advisory in effect through late tonight...
Today..NE winds around 20 kt with gusts up to 30 kt. Seas 6 to 10 ft, subsiding to 4 to 7 ft late. SWell mainly from the N with a dominant period of 6 seconds. A slight chance of showers.
Tonight..E winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt late. Seas 4 to 6 ft. SWell mainly from the N with a dominant period of 6 seconds.
Tue..E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. SWell mainly from the E with a dominant period of 9 seconds.
Tue night..E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. SWell mainly from the E with a dominant period of 10 seconds.
Wed..E winds around 5 kt. Seas 3 to 4 ft.
Wed night..S winds around 5 kt, becoming nw after midnight. Seas around 3 ft. A chance of showers.
Thu..NW winds 5 to 10 kt. Seas around 3 ft. A chance of showers in the morning.
Thu night..NW winds around 5 kt. Seas around 3 ft in the evening, then 2 ft or less.
Fri..NW winds around 5 kt, becoming sw in the afternoon. Seas 2 ft or less.
Fri night..SW winds 5 to 10 kt. Seas 2 ft or less.
ANZ400 339 Am Edt Mon Aug 26 2019
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure over new england will weaken and drift eastward through Tuesday. Low pressure will cross to our north, dragging a cold front across the waters Wednesday night. High pressure will build in from the southwest for Thursday and Friday.


7 Day Forecast for Marine Location Near Dewey Beach, DE
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location: 38.67, -75.08     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 260758
afdphi
area forecast discussion
national weather service mount holly nj
358 am edt Mon aug 26 2019

Synopsis
High pressure over new england will weaken and drift eastward
through Tuesday. Low pressure will cross to our north, dragging a
cold front through the mid-atlantic Wednesday night. High pressure
will build in from the southwest for Thursday and Friday. A cold
front will cross the region Saturday followed by a return to high
pressure for Sunday and Monday.

Near term until 6 pm this evening
High pressure will remain NE of the area today. A moderate NE to e
flow around the high will continue with gusty conditions, especially
along the coast. Sky cover will be mostly clear inland and partly to
mostly cloudy elsewhere. Locations across de and S E nj will see the
most clouds today. High temperatures will remain cool with readings
topping out in the low 70s N W to the mid 70s elsewhere. There may
be some light showers across the SE areas, but pops will be held at
slight chc, since confid in the occurrence is not the greatest
attm.

Short term 6 pm this evening through 6 am Tuesday
More of the same in the short term. The high will begin to weaken,
so the winds will decrease. The flow will still remain onshore, so
added clouds and still a small chc for a shower will continue across
ern nj and de. Lows tonight will remain cool, with low mid 50s
across the N W areas and upper 50s low 60s elsewhere.

Long term Tuesday through Sunday
High pressure remains to our north on Tuesday with the high starting
to slide to the east through Wednesday, breaking down as its moves
offshore. This will keep the cooler easterly flow across the
forecast area on Tuesday and Wednesday. With the airmass modifying,
even in the prolonged onshore flow, we should see temps warm into
the 70s and lower 80s across the region on Tuesday, with better
chances for lower 80s on Wednesday. Expect conditions to remain
fairly cloudy as a result of the easterly flow and some light
precipitation is also possible on Tuesday, mainly across southern
parts of the forecast area.

The bigger story for Wednesday will be the arrival of a cold front
later in the day. Warming ahead of the front and a turning of the
winds to a more southerly direction should aid in destabilization of
the atmosphere. Showers and thunderstorms will be possible from
Wednesday afternoon through Wednesday night. Rainfall amounts aren't
that impressive with the latest model runs and there appears to be
good storm motions so expect everything to be fairly progressive
through Wednesday night.

Once the front clears the area, we should see a return to high
pressure and some dry conditions. A weak cold front approaches the
region from the west on Friday but it looks like it peters out
before it reaches our area. Overall expect nice conditions to
prevail across the mid-atlantic from Thursday through Saturday.

The next system will arrive around Sunday, and this cold front looks
to be a bit more substantial than the Friday front. However, there
are still quite a few differences in the guidance with respect to
timing and moisture, so we have made few changes to the forecast.

Plenty of time for the models to come in alignment as we get closer
to the weekend.

Aviation 08z Monday through Friday
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.

Today... Ne to E onshore flow will continue.VFR most of the time,
but some MVFR CIGS possible kmiv kacy this morning and perhaps into
the early afternoon. Gusty winds nearshore kacy with g20 knots
possible.

Tonight... A continuation of the onshore winds, butVFR expected most
of the time. Again, some lower CIGS near the coast possible. This is
not reflected in the current tafs with confid in this occurring not
the best.

Outlook...

Tuesday... MainlyVFR conditions expected. Light showers possible
south and west of kphl which may cause MVFR or lower conditions to
occur. Easterly winds around 5 to 10 knots with gusts up to 15 knots
possible.

Wednesday... MainlyVFR conditions expected. MVFR or lower possible
in showers and thunderstorms. Light and variable winds up to 5
knots.

Thursday... MainlyVFR conditions expected. Northwest winds around 5
to 10 knots.

Friday... MainlyVFR conditions expected. Northwest winds around 5 to
10 knots will become west and then southwest by the afternoon.

Marine
Sca winds and seas will continue today and tonight with a decent ne
to E flow around the strong high to the ne. The high will weaken
later tonight with lessening winds and then seas. We will extend the
sca flag on the ocean through the overnight. Only some widely sct.

Showers are possible today and tonight with the humid NE flow.

Outlook...

Tuesday... Small craft advisory conditions may linger into Tuesday
morning as seas will be around 5 feet. Seas are expected to subside
and drop below 5 feet around midday. East to northeast winds around
10 to 15 knots with gusts around 20 knots.

Wednesday... Easterly winds around 10 knots. Seas 2 to 4 feet.

Thursday... Northwest winds around 10 knots. Seas 1 to 3 feet.

Friday... West to southwest winds around 10 to 15 knots. Seas 1 to 3
feet.

Rip currents...

a high risk of rip currents is expected today and tonight.

Continued onshore flow and rough surf, with wave heights near
or above 5 ft, will continue through today and may possibly
extend into Tuesday.

Tides coastal flooding
A brisk northeast wind is forecast to continue along the coasts
of new jersey and delaware through late today. The wind is
expected to become east with speeds slowly diminishing on tonight
and Tuesday.

The onshore flow may result in spotty minor tidal flooding
around the times of the late afternoon evening high tide today
and Tuesday. However, the minor flooding is not anticipated to
be widespread enough to warrant an advisory at this time.

The base level of the early morning high tides are considerably
lower than those of the late afternoon evening high tides, so
no issues are expected early in the day today or Tuesday.

Once we get past the early week's onshore flow, we will begin
to experience particularly high astronomical tides associated
with the upcoming new moon phase. As a result, there is another
potential for at least some spotty minor tidal flooding from
late this week into the holiday weekend.

Equipment
The NWS radar at dover de, (kdox) is back in service.

Phi watches warnings advisories
Pa... None.

Nj... High rip current risk through this evening for njz014-024>026.

De... High rip current risk through this evening for dez004.

Md... None.

Marine... Small craft advisory until 6 am edt Tuesday for anz450>455.

Small craft advisory until 8 pm edt this evening for anz430-
431.

Synopsis... Meola
near term... O'hara
short term... O'hara
long term... Meola
aviation... Meola o'hara
marine... Meola o'hara
tides coastal flooding...

equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LWSD1 - 8557380 - Lewes, DE 8 mi46 min ENE 22 G 24 70°F 72°F1020.5 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 22 mi46 min 1020.9 hPa
CMAN4 - 8536110 - Cape May, NJ 22 mi46 min N 2.9 G 8.9 66°F 72°F1020.2 hPa
OCIM2 - 8570283 - Ocean City Inlet, MD 24 mi52 min ENE 8.9 G 17 72°F 72°F1019.9 hPa
44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ 25 mi44 min NE 23 G 29 72°F 75°F10 ft1018.3 hPa (-0.5)
DRSD1 - Delaware Reserve, DE 35 mi124 min N 5.1 65°F 1021 hPa63°F
SJSN4 - 8537121 - Ship John Shoal, NJ 47 mi52 min NNE 13 G 16 64°F 79°F1022.1 hPa

Wind History for Lewes, DE
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Georgetown - Delaware Coastal Airport, DE15 mi2.7 hrsNE 1010.00 miOvercast69°F64°F84%1020.5 hPa

Link to 5 minute data for KGED

Wind History from GED (wind in knots)
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Last 24hr--Calm--N3NE10--N10NE14--NE19
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1 day ago--N5N4N3N7N5NE9E10NE13
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E15NE12NE9E10E10E6E6NE4Calm------Calm----
2 days ago----CalmCalmNW3--N6N8N12NE13NE10N8N11N7N6N6N6N3N4--N3----N4

Tide / Current Tables for Rehoboth Beach, Delaware
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Rehoboth Beach
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Mon -- 01:49 AM EDT     Moonrise
Mon -- 04:25 AM EDT     3.57 feet High Tide
Mon -- 06:23 AM EDT     Sunrise
Mon -- 10:29 AM EDT     0.49 feet Low Tide
Mon -- 04:46 PM EDT     4.49 feet High Tide
Mon -- 04:57 PM EDT     Moonset
Mon -- 07:39 PM EDT     Sunset
Mon -- 11:31 PM EDT     0.31 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.92.73.23.53.532.31.50.90.50.51.123.13.94.44.54.13.42.51.60.90.4

Tide / Current Tables for Delaware Bay Entrance, Delaware Current
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Delaware Bay Entrance
Click for Map
Mon -- 12:54 AM EDT     0.00 knots Slack
Mon -- 01:48 AM EDT     Moonrise
Mon -- 03:40 AM EDT     1.08 knots Max Flood
Mon -- 06:23 AM EDT     Sunrise
Mon -- 06:36 AM EDT     -0.00 knots Slack
Mon -- 10:01 AM EDT     -1.10 knots Max Ebb
Mon -- 12:34 PM EDT     0.00 knots Slack
Mon -- 03:49 PM EDT     1.55 knots Max Flood
Mon -- 04:57 PM EDT     Moonset
Mon -- 07:09 PM EDT     -0.00 knots Slack
Mon -- 07:39 PM EDT     Sunset
Mon -- 10:58 PM EDT     -1.45 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.60.10.611.10.80.3-0.2-0.7-1-1.1-0.9-0.40.311.41.51.30.70.1-0.5-1-1.3-1.4

Weather Map and Satellite Images
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wmap_A
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.
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Wind Forecast for Philadelphia/Mount Holly, PA (5,6,7,8)
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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.