Slaughter Beach, DE Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Slaughter Beach, DE

April 21, 2024 8:28 AM EDT (12:28 UTC) Change Location
Sunrise 6:14 AM   Sunset 7:47 PM
Moonrise 4:45 PM   Moonset 4:13 AM 
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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.

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Marine Forecasts
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ANZ431 Delaware Bay Waters South Of East Point Nj To Slaughter Beach De- 812 Am Edt Sun Apr 21 2024

Today - NE winds 10 to 15 kt, diminishing to 5 to 10 kt late this morning, then becoming nw this afternoon. Waves around 2 ft this morning, then 1 foot or less. A slight chance of showers early this afternoon.

Tonight - NW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Waves 1 foot or less, then around 2 ft after midnight.

Mon - NW winds 10 to 15 kt. Waves around 2 ft.

Mon night - SW winds 5 to 10 kt, becoming S after midnight. Waves 1 foot or less.

Tue - S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon.

Tue night - S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.

Wed - SW winds 10 to 15 kt, becoming W in the afternoon. Waves 2 to 3 ft. A chance of showers.

Wed night - NW winds around 15 kt. Waves 2 to 3 ft. A chance of showers in the evening.

Thu - NW winds around 15 kt. Waves 2 to 3 ft.

Thu night - NW winds around 10 kt. Waves around 2 ft.

ANZ400 812 Am Edt Sun Apr 21 2024

Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay - High pressure builds in early this morning and lingers through the remainder of the day, before a series of fronts and low pressure systems affect the east coast Wednesday through the end of the week. High pressure looks to return to end the weekend and start the new week.


7 Day Forecast for Marine Location Near Slaughter Beach, DE
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Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 211046 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 646 AM EDT Sun Apr 21 2024

SYNOPSIS
High pressure extending eastward from the Midwest to the Mid- Atlantic will continue to build steadily eastward toward the East Coast through Tuesday, while low pressure passes off the Carolinas today and tonight. A cold front will swing through our region on Wednesday, followed by another area of high pressure pushing southeastward from the Great Lakes Thursday and Friday.

NEAR TERM /THROUGH TONIGHT/
Minor tweaks to the forecast were made this morning mainly to update temps and dew points basis current observations.
RH values across N NJ and into NE PA have risen over the past few hours above 70-80% as dew point depressions have lowered.
Accompanied by light winds less than 5 mph, this has resulted in patchy frost developing in these areas. The Frost Advisory for Warren/Sussex Co. NJ remains in effect until 8 AM this morning.

Otherwise, high pressure is building over the Central Plains with ridging extending eastward into the Mid-Atlantic. An area of low pressure over the Southeast will move east-northeast south of North Carolina later today. Associated with the low are some high clouds fanning over the area, which will increase through the remainder of the morning resulting in a mostly cloudy afternoon. Fortunately, the northward extent of the precipitation shield will struggle to make much progress due to the high to the west. Still think that a few showers could make their way into southern Delaware this afternoon but any rainfall should not total more than a few hundredths of an inch. High temperatures will be in the mid to upper 50s for most; with only 40s up in the Poconos.

Clouds quickly depart during the evening hours from northwest to southeast giving way to clear skies overnight as the low moves away.
Winds are anticipated to be very light to near calm at times, so it is expected that the boundary layer will decouple quite easily with lows mostly in the low to mid 30s. With lower dew point depressions tonight and expected RH values greater than 70%, areas of patchy frost will be present early Monday morning. Greatest confidence is across northern NJ and into the Lehigh Valley where the growing season is now active. However, with frost advisories currently in effect this morning, have opted to leave any issuance of frost headlines for tonight up to the next forecast shift.

SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/
Surface high pressure centered over the lower Mississippi River Valley with ridging extending northeastward toward the Mid- Atlantic on Monday will shift eastward to the East Coast, with the ridge axis pushing offshore on Tuesday. This will ensure dry and quiet weather across our region, with stable atmospheric conditions and mostly sunny skies. With a very dry airmass in place along with the clear skies, nights will favor radiational cooling and low temperatures dropping into the 30s outside of the immediate coast and right around Philadelphia. Some patchy frost will subsequently be possible once again early Tuesday morning, from the Lehigh Valley north and northeastward, as well as locally even around the Pine Barrens in southern NJ.
Meanwhile afternoons will be fairly warm with highs in the low 60s Monday rising to the upper 60s for Tuesday. That warming will occur as a cool northwest breeze on Monday swings around the southerly on Tuesday. Clouds will increase Tuesday night as low pressure tracking across Quebec and northern New England swings a sharp cold front toward our region. Showers may push southeastward down to I-95 by dawn on Wednesday. That will result in much milder nighttime and early morning temperatures compared to the previous few nights, though.

LONG TERM /WEDNESDAY THROUGH SATURDAY/
Models are in good general agreement with a dynamic upper-level trough swinging quickly east-southeastward from the Great Lakes across the Northeast and mid-Atlantic on Wednesday. A tightly- wound, cold late-season upper-level close low is progged to drop in from Quebec across northern New England to the Canadian Maritimes Wednesday night into Thursday. At the surface, this will manifest in intensifying low pressure tracking from near northern New York state Tuesday night to the Canadian Maritimes by Wednesday night, with an attendant sharp cold front pushing through our region on Wednesday. This system will lack much in the way of moisture without a tap to Gulf moisture, and dewpoints may struggle to even reach 50F, so do not expect much rainfall. Perhaps less than a quarter-inch in most cases.
However, the dynamic forcing along with rather strong winds aloft and shear may take advantage of just enough instability for some thunderstorms. The strength and coverage of any storms will depend somewhat on the timing of the front relative to peak heating on Wednesday; if there isn't much sunshine preceding frontal passage, then that will limit the strength and coverage.
For now we just have a slight chance mainly from Philly northward. In any case, expect breezy conditions on Wednesday with challenging high temperatures; possibly reaching near 70F ahead of the front from Philly southeastward (again, depending on the timing of the FROPA), while the Poconos may struggle to reach the low 50s.

Heading into Thursday, cool Canadian high pressure will drop across the Great Lakes toward the mid-Atlantic, ensuring dry and sunny weather. Temperatures will start off cool with a threat for some patchy frost in outlying areas, then struggle to reach 60F in most spots. Highs will moderate through the 60s Friday and Saturday, while lows stay potentially frosty in the cooler spots. A warm front may bring some cloudy skies with showers or just a steady light rain in on Saturday.

AVIATION /12Z SUNDAY THROUGH THURSDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Saturday...VFR expected. Mostly BKN CIGs around 25000 feet in the morning, lowering to around 7000-12000 feet after 15-16Z.
Westerly winds around 7-12 kt. High confidence.

Tonight...VFR expected. Skies scattering out becoming SKC after 04Z.
Northwest winds around 5 kt or less. High confidence.

Outlook...

Monday and Tuesday...VFR.

Wednesday...MVFR to possibly IFR conditions at times, as a cold front brings showers and a wind shift from southerly to W/NW.

Thursday...VFR.

MARINE
No marine headlines are in effect through tonight. Winds may occasionally gust up to 20 kt early this morning, but will generally remain around 10-15 kt through tonight. Seas around 2-3 feet.

Outlook...

Monday...NNW winds around 10 kt shifting around to southerly in the afternoon. Seas around 2 ft.

Tuesday...SSE winds increasing to 10-15 kt in the afternoon with some gusts around 20 kt possible. Seas 3 to 4 ft.

Wednesday...Small Craft Advisory conditions possible. Southerly winds around 15 kt gusting to 25 kt, shifting to the W/NW later in the day as a cold front swings through. Seas 4 to 5 ft.

Thursday...SCA possible, especially early. NW winds 15 kt with gusts to 25 kt possible early, easing later on. Seas 3 to 5 ft.

PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...Frost Advisory until 8 AM EDT this morning for NJZ001-007.
DE...None.
MD...None.
MARINE...None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
BRND1 - 8555889 - Brandywine Shoal Light, DE 11 mi71 min 30.09
DRSD1 - Delaware Reserve, DE 12 mi119 min WNW 1 42°F 30.0633°F
LWSD1 - 8557380 - Lewes, DE 15 mi71 min NE 12G14 49°F 56°F30.08
CMAN4 - 8536110 - Cape May, NJ 19 mi71 min N 6G8.9 46°F 30.07
SJSN4 - 8537121 - Ship John Shoal, NJ 25 mi71 min N 12G13 46°F 30.09
44084 32 mi89 min 49°F 53°F4 ft
RDYD1 - 8551910 - Reedy Point, DE 44 mi71 min 46°F 58°F30.07
OCIM2 - 8570283 - Ocean City Inlet, MD 45 mi71 min ENE 6G11 50°F 53°F30.01
DELD1 - 8551762 - Delaware City, DE 46 mi71 min NNW 5.1G7 47°F 30.09
44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ 47 mi49 min NE 14G16 50°F 50°F30.0641°F
CA2 - 8571892 - Cambridge, MD 48 mi71 min ENE 9.9G12 61°F30.09
CHCM2 - 8573927 - Chesapeake City, MD 48 mi71 min N 4.1G6 44°F 60°F30.09


Wind History for Lewes, DE
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KDOV DOVER AFB,DE 15 sm33 minN 0910 smClear48°F28°F46%30.07
KGED DELAWARE COASTAL,DE 18 sm34 minNE 0510 smOvercast48°F34°F57%30.08
KWWD CAPE MAY COUNTY,NJ 22 sm32 minN 1110 smOvercast46°F28°F49%30.08
Link to 5 minute data for KDOV


Wind History from DOV
(wind in knots)
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Tide / Current for Mispillion River entrance, Delaware Bay, Delaware
   
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Mispillion River entrance
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Sun -- 02:35 AM EDT     0.35 feet Low Tide
Sun -- 05:13 AM EDT     Moonset
Sun -- 06:15 AM EDT     Sunrise
Sun -- 08:22 AM EDT     4.52 feet High Tide
Sun -- 02:48 PM EDT     0.42 feet Low Tide
Sun -- 05:44 PM EDT     Moonrise
Sun -- 07:44 PM EDT     Sunset
Sun -- 08:36 PM EDT     4.82 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Mispillion River entrance, Delaware Bay, Delaware, Tide feet
12
am
1.8
1
am
0.9
2
am
0.4
3
am
0.4
4
am
0.9
5
am
1.9
6
am
3
7
am
4
8
am
4.5
9
am
4.4
10
am
4
11
am
3.1
12
pm
2.1
1
pm
1.2
2
pm
0.6
3
pm
0.4
4
pm
0.8
5
pm
1.8
6
pm
2.9
7
pm
4
8
pm
4.7
9
pm
4.8
10
pm
4.4
11
pm
3.6



Tide / Current for Delaware Bay Entrance, Delaware Current
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Delaware Bay Entrance
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Sun -- 12:08 AM EDT     -1.13 knots Max Ebb
Sun -- 03:09 AM EDT     0.00 knots Slack
Sun -- 05:12 AM EDT     Moonset
Sun -- 06:06 AM EDT     1.18 knots Max Flood
Sun -- 06:14 AM EDT     Sunrise
Sun -- 09:16 AM EDT     -0.00 knots Slack
Sun -- 12:32 PM EDT     -1.18 knots Max Ebb
Sun -- 03:31 PM EDT     0.00 knots Slack
Sun -- 05:43 PM EDT     Moonrise
Sun -- 06:27 PM EDT     1.25 knots Max Flood
Sun -- 07:43 PM EDT     Sunset
Sun -- 09:36 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Delaware Bay Entrance, Delaware Current, knots
12
am
-1.1
1
am
-1
2
am
-0.6
3
am
-0.1
4
am
0.5
5
am
1
6
am
1.2
7
am
1.1
8
am
0.7
9
am
0.2
10
am
-0.4
11
am
-0.8
12
pm
-1.1
1
pm
-1.1
2
pm
-0.8
3
pm
-0.3
4
pm
0.3
5
pm
0.9
6
pm
1.2
7
pm
1.2
8
pm
0.9
9
pm
0.4
10
pm
-0.2
11
pm
-0.8




Weather Map
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GEOS Local Image of east us   
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Dover AFB, DE,



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