Marine Weather and Tide Forecast for Delaware City, DE
April 28, 2024 1:08 AM EDT (05:08 UTC) Change Location
 | Sunrise 6:04 AM Sunset 7:55 PM Moonrise 12:00 AM Moonset 7:55 AM |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 1002 Pm Edt Sat Apr 27 2024
Overnight - S winds 5 to 10 kt. Waves around 2 ft.
Sun - S winds 5 to 10 kt. Waves around 2 ft in the morning, then 1 foot or less.
Sun night - S winds 5 to 10 kt, becoming sw after midnight. Waves 1 foot or less.
Mon - W winds 5 to 10 kt, becoming sw in the afternoon. Waves 1 foot or less.
Mon night - S winds 5 to 10 kt. Waves 1 foot or less.
Tue - S winds 5 to 10 kt. Waves 1 foot or less.
Tue night - S winds around 10 kt, becoming W after midnight. Waves 1 foot or less. A chance of showers.
Wed - NW winds 5 to 10 kt, becoming N in the afternoon. Waves 1 foot or less.
Wed night - SE winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less.
Thu - SE winds 5 to 10 kt. Waves 1 foot or less.
Thu night - S winds around 10 kt. Waves around 2 ft in the evening, then 1 foot or less.
ANZ400 1002 Pm Edt Sat Apr 27 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.
Area Discussion for - Philadelphia/Mount Holly, PA
(hide/show) HelpNOTE: mouseover dotted underlined text for definition
FXUS61 KPHI 280134 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 934 PM EDT Sat Apr 27 2024
SYNOPSIS
High pressure will remain in control of the prevailing conditions through early in the week with low chances of showers and storms. Temperatures rise above normal Sunday as a warm front lifts north of the area. A weak system will be a more widespread chance of storms on Tuesday, and temperatures will remain above normal through the week.
NEAR TERM /THROUGH SUNDAY/
No significant changes made to prior forecast.
Most of the sprinkles or light showers have tapered off and moved offshore. Warm front continues to approach from the west, and additional light showers are possible for the southern Poconos and northern New Jersey, and down into eastern New Jersey through the overnight. Lows will be in the mid to upper 40s (low 40s Poconos), with even near 50 in the more urban spots. The warm advection and isentropic lift aloft along with some weak mid-level vorticity advection should result in additional isolated to scattered showers overnight. The greater shower coverage overnight will be over northeast PA and northern NJ, decreasing to isolated southwestward toward Philadelphia.
CAMs generally back that idea up, though are inconsistent with regard to exact timing and coverage.
The aforementioned forcing mechanisms will shift east-northeast away from our region Sunday morning, as an upper-level ridge amplifies northward up the Appalachians and across the mid- Atlantic. Surface high pressure will settle off the coast of the Carolinas, resulting in southwesterly low-level flow bringing the warmest temperatures since April 15th. Decreasing cloud cover should allow for enough sunshine to allow some spots, particularly inland from Philadelphia southward, to reach 80F.
Expect a southerly sea-breeze to keep the immediate shore communities much cooler, but that will not make it too far inland with the southwest to west ambient flow. Dewpoints may make it into the mid to upper 50s for the afternoon; while not humid by summer standards, it may be noticeable to the un- acclimated. Meanwhile, another shortwave rotating over the upper-level ridge may spark off a few widely scattered showers over eastern PA, particularly from the Lehigh Valley northward Sunday afternoon. Some CAMs suggest those could push east- southeastward across the Delaware River into NJ, but the chance looks quite low from Philly southward. With that activity, there may be enough instability for a stray thunderstorm, but not enough instability or forcing for anything severe.
SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/
The main story heading into early next week will be the strengthening ridge across the East Coast. 500 mb heights look to increase to near 580 dam by Monday, values more typical of summertime. At the surface, high pressure will be centered offshore of the Carolinas, helping to advect warmer and more moist air into the region. The result will be much above normal temperatures. A backdoor frontal boundary will sink southwestward into the area from New England Monday night, stalling out across the central part of the forecast area by Tuesday.
Lows Sunday night will be about 10-15 degrees above normal, mainly in the mid 50s to near 60 degrees with clearing skies.
Monday will be the warmest day of the stretch with high temperatures soaring into the mid to upper 80s in most interior locations under partly cloudy skies. Highs in the more urbanized areas could top out closer to 90 degrees, though readings of 90 degrees or higher appear unlikely at this time. The northwest flow will add a downsloping component to the winds and thus also help to boost temperatures locally near the urban corridor. The offshore wind will also allow for a notable warmup even along the immediate coast, with highs getting to the low to mid 70s before the sea breeze kicks in.
As the gradient flow weakens and shifts eventually to the southwest then south, the sea breeze will likely make significant inland progress into the I-95 corridor and perhaps even farther inland from there during the evening. This will cool temperatures off into the 70s and 60s by late evening.
Dewpoints will be near 60 degrees, so the Heat Index won't be much different than the air temperature on Monday. No heat headlines are anticipated. Lows Monday night will also be quite mild once again in the mid 50s to near 60 degrees. The backdoor frontal boundary will sink into northern and central New Jersey overnight with increasing cloud cover.
For Tuesday, the frontal boundary will stall out along a line from near Ocean County northwest into the Lehigh Valley.
Southwest of the boundary, temperatures should warm well into the low to mid 80s by the afternoon under partly cloudy skies.
Northeast of the boundary, temperatures will likely top out in the 70s away from the coast under mostly cloudy skies. The upper ridge will deamplify as a shortwave trough approaches from the west. This wave will be weakening a good bit, so forcing won't be overly impressive. We should have a fair amount of diurnally driven instability though, generally in the 500 J/kg neighborhood southwest of the boundary. So some scattered showers and thunderstorms are anticipated to develop into the afternoon and evening. Shear isn't bad, around 30- 35 kts, but with meager forcing and instability, currently anticipate convection to be large benign and hit or miss in nature. Have kept PoPs near 30-50%, greatest toward the north where forcing will be a bit stronger.
A weak cold front associated with the trough will pass through the area Tuesday night, bringing an end to the convective activity. This will also signal a return to more temperate conditions for the remainder of the week, although temperatures likely remain several degrees above normal.
LONG TERM /WEDNESDAY THROUGH SATURDAY/
Somewhat unsettled, but not overly impactful long term looks to be on the horizon. The ensembles suggest another weaker ridge axis could build to our west while moving eastwards with time Tuesday night into Thursday, the overall upper-level pattern looks to become more zonal like and somewhat slow moving Tuesday night onwards. Otherwise, multiple rounds of shortwave energy and perhaps some weak surface boundaries hanging around or moving through could be in the cards, potentially supporting some weak convective activity and varying cloud cover.
Stuck with NBM PoPS for this forecast. Slight chance or chance of showers each day for the interior. Greatest chance for showers and thunderstorms is the Friday/Friday night time frame thanks to another cold front passing through. Above average temperatures likely Wednesday through the end of the week.
AVIATION /02Z SUNDAY THROUGH THURSDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
Through Tonight...VFR for most TAF sites, though MVFR CIGs are likely for at least KRDG/KABE and even down to KTTN. CIGs will generally be in the 030 to 040 range. A few light SHRA possible, mainly towards KRDG/KABE, but VSBY restrictions not expected. LGT/VRB winds. Moderate confidence.
Sunday...Some MVFR possible early, mainly ABE/RDG but possibly down to TTN. VFR otherwise, and ceilings will tend to lift and scatter through 15Z or so. Those same northern TAF sites may see some pop-up shower activity in the afternoon, possibly even a stray -TSRA. Winds mainly SW 5-10 kt. Moderate confidence.
Outlook...
Sunday night through Monday night...No significant weather expected. Mainly VFR with winds near 5-10 kts.
Tuesday through Wednesday...Mainly VFR with winds 5-10 kts, though some scattered showers or thunderstorms are possible late Tuesday and Wednesday.
MARINE
Sub-Small Craft Advisory conditions on tap for tonight and Sunday. Another trough passing through the waters may keep wind gusts at least periodically around 20 kt into early Sunday morning. For the rest of Sunday, winds will generally be northerly 10-15 KT with gusts up to 20 KT at times. Seas 3-4 ft through this evening, highest to the lee of DE Bay, dropping to 2-3 ft for most of Sunday.
Outlook...
Sunday night through Wednesday...No marine hazards expected.
Winds 10-15 kts and seas 2-4 feet.
CLIMATE
Near record breaking high temperatures are forecast on Monday.
Records for our climate sites are listed below:
Record High Temperatures Jan 25 Site Record/Year Allentown (ABE) 86/1974 AC Airport (ACY) 92/1974 AC Marina (55N) 88/2017 Georgetown (GED) 91/2017 Mount Pocono (MPO) 82/1974 Philadelphia (PHL) 90/1974 Reading (RDG) 91/1888 Trenton (TTN) 88/1974 Wilmington (ILG) 91/1974
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
Area Forecast Discussion National Weather Service Mount Holly NJ 934 PM EDT Sat Apr 27 2024
SYNOPSIS
High pressure will remain in control of the prevailing conditions through early in the week with low chances of showers and storms. Temperatures rise above normal Sunday as a warm front lifts north of the area. A weak system will be a more widespread chance of storms on Tuesday, and temperatures will remain above normal through the week.
NEAR TERM /THROUGH SUNDAY/
No significant changes made to prior forecast.
Most of the sprinkles or light showers have tapered off and moved offshore. Warm front continues to approach from the west, and additional light showers are possible for the southern Poconos and northern New Jersey, and down into eastern New Jersey through the overnight. Lows will be in the mid to upper 40s (low 40s Poconos), with even near 50 in the more urban spots. The warm advection and isentropic lift aloft along with some weak mid-level vorticity advection should result in additional isolated to scattered showers overnight. The greater shower coverage overnight will be over northeast PA and northern NJ, decreasing to isolated southwestward toward Philadelphia.
CAMs generally back that idea up, though are inconsistent with regard to exact timing and coverage.
The aforementioned forcing mechanisms will shift east-northeast away from our region Sunday morning, as an upper-level ridge amplifies northward up the Appalachians and across the mid- Atlantic. Surface high pressure will settle off the coast of the Carolinas, resulting in southwesterly low-level flow bringing the warmest temperatures since April 15th. Decreasing cloud cover should allow for enough sunshine to allow some spots, particularly inland from Philadelphia southward, to reach 80F.
Expect a southerly sea-breeze to keep the immediate shore communities much cooler, but that will not make it too far inland with the southwest to west ambient flow. Dewpoints may make it into the mid to upper 50s for the afternoon; while not humid by summer standards, it may be noticeable to the un- acclimated. Meanwhile, another shortwave rotating over the upper-level ridge may spark off a few widely scattered showers over eastern PA, particularly from the Lehigh Valley northward Sunday afternoon. Some CAMs suggest those could push east- southeastward across the Delaware River into NJ, but the chance looks quite low from Philly southward. With that activity, there may be enough instability for a stray thunderstorm, but not enough instability or forcing for anything severe.
SHORT TERM /SUNDAY NIGHT THROUGH TUESDAY NIGHT/
The main story heading into early next week will be the strengthening ridge across the East Coast. 500 mb heights look to increase to near 580 dam by Monday, values more typical of summertime. At the surface, high pressure will be centered offshore of the Carolinas, helping to advect warmer and more moist air into the region. The result will be much above normal temperatures. A backdoor frontal boundary will sink southwestward into the area from New England Monday night, stalling out across the central part of the forecast area by Tuesday.
Lows Sunday night will be about 10-15 degrees above normal, mainly in the mid 50s to near 60 degrees with clearing skies.
Monday will be the warmest day of the stretch with high temperatures soaring into the mid to upper 80s in most interior locations under partly cloudy skies. Highs in the more urbanized areas could top out closer to 90 degrees, though readings of 90 degrees or higher appear unlikely at this time. The northwest flow will add a downsloping component to the winds and thus also help to boost temperatures locally near the urban corridor. The offshore wind will also allow for a notable warmup even along the immediate coast, with highs getting to the low to mid 70s before the sea breeze kicks in.
As the gradient flow weakens and shifts eventually to the southwest then south, the sea breeze will likely make significant inland progress into the I-95 corridor and perhaps even farther inland from there during the evening. This will cool temperatures off into the 70s and 60s by late evening.
Dewpoints will be near 60 degrees, so the Heat Index won't be much different than the air temperature on Monday. No heat headlines are anticipated. Lows Monday night will also be quite mild once again in the mid 50s to near 60 degrees. The backdoor frontal boundary will sink into northern and central New Jersey overnight with increasing cloud cover.
For Tuesday, the frontal boundary will stall out along a line from near Ocean County northwest into the Lehigh Valley.
Southwest of the boundary, temperatures should warm well into the low to mid 80s by the afternoon under partly cloudy skies.
Northeast of the boundary, temperatures will likely top out in the 70s away from the coast under mostly cloudy skies. The upper ridge will deamplify as a shortwave trough approaches from the west. This wave will be weakening a good bit, so forcing won't be overly impressive. We should have a fair amount of diurnally driven instability though, generally in the 500 J/kg neighborhood southwest of the boundary. So some scattered showers and thunderstorms are anticipated to develop into the afternoon and evening. Shear isn't bad, around 30- 35 kts, but with meager forcing and instability, currently anticipate convection to be large benign and hit or miss in nature. Have kept PoPs near 30-50%, greatest toward the north where forcing will be a bit stronger.
A weak cold front associated with the trough will pass through the area Tuesday night, bringing an end to the convective activity. This will also signal a return to more temperate conditions for the remainder of the week, although temperatures likely remain several degrees above normal.
LONG TERM /WEDNESDAY THROUGH SATURDAY/
Somewhat unsettled, but not overly impactful long term looks to be on the horizon. The ensembles suggest another weaker ridge axis could build to our west while moving eastwards with time Tuesday night into Thursday, the overall upper-level pattern looks to become more zonal like and somewhat slow moving Tuesday night onwards. Otherwise, multiple rounds of shortwave energy and perhaps some weak surface boundaries hanging around or moving through could be in the cards, potentially supporting some weak convective activity and varying cloud cover.
Stuck with NBM PoPS for this forecast. Slight chance or chance of showers each day for the interior. Greatest chance for showers and thunderstorms is the Friday/Friday night time frame thanks to another cold front passing through. Above average temperatures likely Wednesday through the end of the week.
AVIATION /02Z SUNDAY THROUGH THURSDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
Through Tonight...VFR for most TAF sites, though MVFR CIGs are likely for at least KRDG/KABE and even down to KTTN. CIGs will generally be in the 030 to 040 range. A few light SHRA possible, mainly towards KRDG/KABE, but VSBY restrictions not expected. LGT/VRB winds. Moderate confidence.
Sunday...Some MVFR possible early, mainly ABE/RDG but possibly down to TTN. VFR otherwise, and ceilings will tend to lift and scatter through 15Z or so. Those same northern TAF sites may see some pop-up shower activity in the afternoon, possibly even a stray -TSRA. Winds mainly SW 5-10 kt. Moderate confidence.
Outlook...
Sunday night through Monday night...No significant weather expected. Mainly VFR with winds near 5-10 kts.
Tuesday through Wednesday...Mainly VFR with winds 5-10 kts, though some scattered showers or thunderstorms are possible late Tuesday and Wednesday.
MARINE
Sub-Small Craft Advisory conditions on tap for tonight and Sunday. Another trough passing through the waters may keep wind gusts at least periodically around 20 kt into early Sunday morning. For the rest of Sunday, winds will generally be northerly 10-15 KT with gusts up to 20 KT at times. Seas 3-4 ft through this evening, highest to the lee of DE Bay, dropping to 2-3 ft for most of Sunday.
Outlook...
Sunday night through Wednesday...No marine hazards expected.
Winds 10-15 kts and seas 2-4 feet.
CLIMATE
Near record breaking high temperatures are forecast on Monday.
Records for our climate sites are listed below:
Record High Temperatures Jan 25 Site Record/Year Allentown (ABE) 86/1974 AC Airport (ACY) 92/1974 AC Marina (55N) 88/2017 Georgetown (GED) 91/2017 Mount Pocono (MPO) 82/1974 Philadelphia (PHL) 90/1974 Reading (RDG) 91/1888 Trenton (TTN) 88/1974 Wilmington (ILG) 91/1974
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| DELD1 - 8551762 - Delaware City, DE | 1 mi | 50 min | S 4.1G | 55°F | 30.32 | |||
| RDYD1 - 8551910 - Reedy Point, DE | 1 mi | 50 min | 54°F | 59°F | 30.30 | |||
| CHCM2 - 8573927 - Chesapeake City, MD | 12 mi | 50 min | ESE 1.9G | 53°F | 60°F | 30.31 | ||
| MRCP1 - 8540433 - Marcus Hook, PA | 19 mi | 50 min | 57°F | 30.31 | ||||
| SJSN4 - 8537121 - Ship John Shoal, NJ | 22 mi | 50 min | SE 7G | 55°F | 30.33 | |||
| PHBP1 - 8545240 - Philadelphia, PA | 35 mi | 50 min | 53°F | 57°F | 30.31 | |||
| BDSP1 | 39 mi | 50 min | 52°F | 56°F | 30.32 | |||
| TCBM2 - 8573364 - Tolchester Beach, MD | 43 mi | 50 min | E 2.9G | 30.30 | ||||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 48 mi | 50 min | S 13G | 30.33 |
toggle option: (graph/table)
Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KILG NEW CASTLE,DE | 8 sm | 7 min | SE 05 | 10 sm | Overcast | 54°F | 46°F | 77% | 30.30 |
Tide / Current for Pea Patch Island, Bulkhead Shoal Channel, Chesapeake and Delaware Canal, Delaware
EDIT Weekend mode (on/off) (hide/show) Help
Pea Patch Island
Click for Map
Sat -- 01:52 AM EDT 6.27 feet High Tide
Sat -- 06:07 AM EDT Sunrise
Sat -- 08:02 AM EDT Moonset
Sat -- 09:13 AM EDT 0.67 feet Low Tide
Sat -- 02:31 PM EDT 5.16 feet High Tide
Sat -- 07:52 PM EDT Sunset
Sat -- 08:52 PM EDT 0.88 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 01:52 AM EDT 6.27 feet High Tide
Sat -- 06:07 AM EDT Sunrise
Sat -- 08:02 AM EDT Moonset
Sat -- 09:13 AM EDT 0.67 feet Low Tide
Sat -- 02:31 PM EDT 5.16 feet High Tide
Sat -- 07:52 PM EDT Sunset
Sat -- 08:52 PM EDT 0.88 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Pea Patch Island, Bulkhead Shoal Channel, Chesapeake and Delaware Canal, Delaware, Tide feet
| 12 am |
| 5.2 |
| 1 am |
| 6 |
| 2 am |
| 6.3 |
| 3 am |
| 5.9 |
| 4 am |
| 4.9 |
| 5 am |
| 3.7 |
| 6 am |
| 2.5 |
| 7 am |
| 1.7 |
| 8 am |
| 1 |
| 9 am |
| 0.7 |
| 10 am |
| 0.9 |
| 11 am |
| 2 |
| 12 pm |
| 3.5 |
| 1 pm |
| 4.6 |
| 2 pm |
| 5.1 |
| 3 pm |
| 5.1 |
| 4 pm |
| 4.5 |
| 5 pm |
| 3.5 |
| 6 pm |
| 2.4 |
| 7 pm |
| 1.5 |
| 8 pm |
| 1 |
| 9 pm |
| 0.9 |
| 10 pm |
| 1.2 |
| 11 pm |
| 2.4 |
Chesapeake and Delaware Canal
Click for Map
Sat -- 03:26 AM EDT -2.23 knots Max Ebb
Sat -- 06:08 AM EDT Sunrise
Sat -- 06:55 AM EDT 0.06 knots Slack
Sat -- 08:03 AM EDT Moonset
Sat -- 10:38 AM EDT 2.18 knots Max Flood
Sat -- 01:58 PM EDT -0.07 knots Slack
Sat -- 04:18 PM EDT -1.35 knots Max Ebb
Sat -- 06:30 PM EDT 0.02 knots Slack
Sat -- 07:53 PM EDT Sunset
Sat -- 10:27 PM EDT 1.52 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sat -- 03:26 AM EDT -2.23 knots Max Ebb
Sat -- 06:08 AM EDT Sunrise
Sat -- 06:55 AM EDT 0.06 knots Slack
Sat -- 08:03 AM EDT Moonset
Sat -- 10:38 AM EDT 2.18 knots Max Flood
Sat -- 01:58 PM EDT -0.07 knots Slack
Sat -- 04:18 PM EDT -1.35 knots Max Ebb
Sat -- 06:30 PM EDT 0.02 knots Slack
Sat -- 07:53 PM EDT Sunset
Sat -- 10:27 PM EDT 1.52 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Chesapeake and Delaware Canal, Maryland/Delaware Current, knots
| 12 am |
| -0.8 |
| 1 am |
| -1.6 |
| 2 am |
| -2 |
| 3 am |
| -2.2 |
| 4 am |
| -2.2 |
| 5 am |
| -1.9 |
| 6 am |
| -1.3 |
| 7 am |
| 0.4 |
| 8 am |
| 1.3 |
| 9 am |
| 1.8 |
| 10 am |
| 2.1 |
| 11 am |
| 2.2 |
| 12 pm |
| 1.9 |
| 1 pm |
| 1.3 |
| 2 pm |
| -0.2 |
| 3 pm |
| -1.1 |
| 4 pm |
| -1.3 |
| 5 pm |
| -1.3 |
| 6 pm |
| -0.8 |
| 7 pm |
| 0.7 |
| 8 pm |
| 1.1 |
| 9 pm |
| 1.3 |
| 10 pm |
| 1.5 |
| 11 pm |
| 1.5 |
Dover AFB, DE,
NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE