Delaware Bay south of East Point NJ to Slaughter Beach DE Marine Forecast
| Today...Nw Winds 30 To 35 Kt With Gusts Up To 45 Kt, Diminishing To 20 To 25 Kt With Gusts Up To 35 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 6 Ft At 5 Seconds And Se 4 Ft At 10 Seconds. Snow Until Late Afternoon, Then A Chance Of Snow Late. Blowing Snow This Morning. Areas Of Blowing Snow This Afternoon. |
| Tonight...Nw Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 4 To 6 Ft. Wave Detail: Nw 4 Ft At 5 Seconds And Se 3 Ft At 12 Seconds. Areas Of Blowing Snow In The Evening. |
| Tue...Nw Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 3 To 5 Ft. Wave Detail: Nw 4 Ft At 4 Seconds And Se 2 Ft At 12 Seconds. |
| Tue Night...Sw Winds 5 To 10 Kt, Becoming S 15 To 20 Kt With Gusts Up To 25 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 3 Seconds And Se 2 Ft At 12 Seconds. A Chance Of Rain And Snow After Midnight With Vsby 1 To 3 Nm. |
| Wed...Sw Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 2 To 3 Ft. Wave Detail: S 3 Ft At 4 Seconds And Se 1 Foot At 11 Seconds. A Chance Of Rain In The Morning With Vsby 1 To 3 Nm. |
| Wed Night...Sw Winds 10 To 15 Kt, Becoming Nw 5 To 10 Kt After Midnight. Seas 2 To 3 Ft. Wave Detail: Sw 2 Ft At 4 Seconds. |
| Thu...Ne Winds 5 To 10 Kt, Becoming Se 10 To 15 Kt In The Afternoon. Seas 2 To 3 Ft. A Chance Of Rain In The Morning, Then Rain Likely In The Afternoon. Vsby 1 To 3 Nm. |
| Thu Night...S Winds 10 To 15 Kt, Becoming Sw After Midnight. Seas 2 To 4 Ft. Rain. |
| Fri...Nw Winds 10 To 15 Kt, Diminishing To 5 To 10 Kt In The Afternoon. Seas 2 To 4 Ft. A Chance Of Rain In The Morning. |
| Fri Night...Nw Winds Around 5 Kt, Becoming Sw After Midnight. Seas 2 To 3 Ft. |
| Area Forecast Discussion National Weather Service Mount Holly NJ 647am EST Monday Feb 23 2026 .WHAT HAS CHANGED... A major winter storm continues to impact the region. The heavy snow and winds will wind down from west to east, but heavy snow and strong winds will continue to impact portions of coastal New Jersey through mid morning. Coastal Flood Advisories now in effect for areas where Coastal Flood Warnings were issued previously. .KEY MESSAGES... 1. A major winter storm is impacting the region. Very heavy snowfall and areas of blizzard conditions will continue for portions of coastal New Jersey through mid morning. 2. Widespread minor coastal flooding will occur with the midday high tide. Localized areas of moderate coastal flooding possible for backbay communities. Further tidal flooding may linger with the high tide tonight into early Tuesday. 3...An unsettled pattern continues through this week with some light snow expected on Tuesday Night and then another system likely bringing some rain and snow Thursday into Thursday Night. KEY MESSAGE 1...A major winter storm is impacting the region. Very heavy snowfall and areas of blizzard conditions will continue for portions of coastal New Jersey through mid morning. 7am Update: Widespread snowfall totals of 4-12" have been reported so far northwest of I-95, and between 12-18" across the Philadelphia metro and southeast toward the coasts of NJ and Delmarva. Snowfall rates of 2-4 inches per hour have been observed with the heavy snow band. Additional snowfall amounts between 3-6" are forecast across portions of southern NJ. Elsewhere, 1-3" of additional snowfall is possible through midday. Blizzard Warnings and Winter Storm Warnings remain in effect for the entire forecast area through today. A rapidly deepening low pressure system is located offshore of NJ. It is expected to continue deepening rapidly, particularly through the early morning hours. Strong frontogenetic forcing is resulting in bands of heavy snow and strong winds inland into the I-95 corridor and Delmarva. The low will track northeastward away from the region later today. Snowfall amounts have fallen short of the forecast across the western fringes of our PA counties, but guidance shows light to potentially moderate snowfall continuing at times for eastern PA into the mid morning hours. Thus, will keep Winter Storm Warnings in place for these areas. For the southern Poconos, snow has also fallen short of forecast. However, winds are anticipated to increase later this morning, which could lead to areas of blowing snow and ground blizzard conditions across the Pocono Plateau. Thus, will keep the Blizzard Warning in place there as well. Light to moderate snow continues to fall across the entire forecast area early this morning, with a persistent band of heavy snow across portions of central and interior southern NJ, Philadelphia metro, and Delaware. This activity will continue for at least a few more hours before beginning to wind down after dawn. Periods of light snow will then continue through much of the morning area wide before snow start ending into the afternoon as the storm departs eastward. North to northwest winds 20-35 mph with gusts up to 45 mph inland and up to 60 mph along the coast will continue through dawn. Northwest winds will then persist much of the day around 15-25 mph with gusts up to 35 mph. The daytime winds could lead to areas of blowing snow, even after snowfall ends. Snow could be blown back onto previously clear roads, leading to icy conditions. The blowing snow could lead to briefly low visibility, especially near open fields. No changes have been made to the Blizzard or Winter Storm Warnings. It is important to note that regardless of whether blizzard criteria is met for any given location, the combination of strong winds and heavy snow will lead to nearly impossible travel conditions, as well as the potential for scattered power outages. Confidence remains very high in major to extreme impacts to our region from this unfolding winter storm. KEY MESSAGE 2...Widespread minor coastal flooding will occur with the midday high tide. Localized areas of moderate coastal flooding possible for backbay communities. Further tidal flooding may linger with the high tide tonight into early Tuesday. High tide has past for all coastal areas with water levels continuing to decrease. Some backbay areas continue to see ongoing minor tidal flooding with water slow to drain. Winds will continue to turn to a more offshore component but the deepening offshore low will continue to keep ocean swells onshore through the day. As a result, Coastal Flood Advisories are now in place for Middlesex, Monmouth, Ocean, Southeastern Burlington, Atlantic, and Cape May Counties in NJ, as well as Kent and Sussex Counties in DE through the afternoon, as widespread minor tidal flooding is expected with the midday high tide. Localized areas along the backbays may again reach into moderate flood stage with this high tide cycle, particularly in Atlantic coastal New Jersey. By tonight, conditions begin to improve with swells turning offshore, though some minor tidal flooding may linger with the high tide late tonight into Tuesday morning. For the upper Delaware Bay, tidal Delaware River, and tidal Maryland Eastern Shore, no tidal flooding is expected. KEY MESSAGE 3...Unsettled weather is expected for the middle of the week as several systems pass through the region. High pressure slides off the Southeast Coast on Tuesday, then a clipper system approaches from the west Tuesday night. Precipitation will mostly be snow throughout the region, but the highest snowfall totals should be across the southern Poconos and far northwest New Jersey. Farther south, Quantitative Precipitation Forecast amounts will be lighter, so not as much snow will accumulate. In addition, rain should mix with the snow, and eventually change to snow Wednesday morning before ending. Overall, about 1 to 3 inches is possible north and west of the Fall Line, with 3 to 4 inches in the southern Poconos. Less than an inch of snow will accumulate elsewhere. As this system lifts to the northeast, winds take on a southwest flow behind this departing system. With warm air advection underway, highs should get into the 40s on Wednesday under clearing skies, allowing for at least some of the snowpack to start melting. Following that, an upper trough digs into the Midwest, then lower Great Lakes and Ohio Valley. Surface low pressure develops over the Gulf Coast States and Tennessee Valley on Thursday, then takes a run at the Northeast Thursday night, departing on Friday. Precipitation develops on a warm front extending out from that low on Thursday, and then the bulk of the precipitation falls Thursday night, ending Friday morning. Precipitation may start out as a rain/snow mix before changing to plain rain south and east of the Fall Line, while precipitation remains as snow to the north and west. Uncertain at this time how much snow will accumulate from this system, as there is low confidence with the timing and placement of this system. Temperatures should top off in the 40s once again on Friday. Marine A powerful coastal storm is impacting the coastal waters. North winds 35-45 kts with gusts up to 50 kts through this morning. Winds will shift eventually northwestward during the daytime, before beginning to decrease by the afternoon and evening. Seas 12-18 feet into the morning before beginning to decrease. The Storm Warning for NJ and DE Atlantic coastal waters, as well as the lower Delaware Bay remains in effect until 6pm Monday. The Gale Warning for the upper Delaware Bay also remains in effect until 6pm Monday. The highest winds and seas will occur through early this morning, with gale force winds likely lingering into the afternoon. Heavy snow could lead to near zero visibility at times through the morning. Small Craft Advisory conditions tonight, with northwest wind gusts up to 30 kts. Regarding the river/marine ice, Delaware Bay continues to be mainly ice free outside of shallow near-shore areas. Ice coverage remains around 10-30% from the the Delaware Memorial Bridge up to the Commodore Barry Bridge. North of that up through Philadelphia, ice coverage is around 30-70%. Outlook... Tuesday through Tuesday night...SCA (Small Craft Advisory) conditions. There should be a brief lull Tuesday evening before conditions ramp up later Tuesday night. Wind gusts to 25 kt Tuesday morning, but seas remain elevated through the day. Winds and seas ramp back up later Tuesday night. VSBY restrictions in snow, then rain Tuesday night. Wednesday through Wednesday night...SCA (Small Craft Advisory) conditions. Winds will gust to 25 kt or higher with seas 5 to 6 feet during the day, then sub- SCA (Small Craft Advisory) conditions Wednesday night. VSBY restrictions, mostly in rain, Wednesday morning. Thursday through Thursday night...Mostly sub-SCA (Small Craft Advisory) conditions, though winds may gust to 25 kt briefly Thursday evening. VSBY restrictions in snow and rain. Friday...SCA (Small Craft Advisory) conditions possible, mostly for elevated seas. Any VSBY restrictions in rain should end by afternoon. Climate For Sunday, February 22nd, Trenton and Wilmington experienced daily record snowfall amounts. Trenton's observed snowfall of 7.9" broke the record of 6.3" from 2001. Wilmington's observed snowfall of 5.4" broken the record of 5.0" from 1935. The daily snowfall records for February 22 and 23 from our climate sites listed below: February 22 Site Record/Year Allentown (ABE) 8.6"/1948 AC Airport (ACY) 8.0"/2001 Philadelphia (PHL) 7.0"/2001 Reading (RDG) 6.5"/1948 Trenton (TTN) 6.3"/2001 Wilmington (ILG) 5.0"/1935 February 23 Site Record/Year Allentown (ABE) 6.5"/1987 AC Airport (ACY) 6.5"/1987 Philadelphia (PHL) 6.5"/1987 Reading (RDG) 6.5"/1994 Trenton (TTN) 11.4"/1987 Wilmington (ILG) 12.4"/1987 NOAA Mount Holly NJ Office: Watches - Warnings - Advisories PA...Blizzard Warning until 6pm EST this evening for PAZ054-055- 070-071-104>106. Winter Storm Warning until 6pm EST this evening for PAZ060>062-101>103. NJ...Blizzard Warning until 6pm EST this evening for NJZ001- 007>010-012>027. Coastal Flood Advisory until 5pm EST this afternoon for NJZ012>014-020-022>027. DE...Blizzard Warning until 6pm EST this evening for DEZ001>004. Coastal Flood Advisory until 5pm EST this afternoon for DEZ002>004. MD...Blizzard Warning until 6pm EST this evening for MDZ015-019- 020. Winter Storm Warning until 6pm EST this evening for MDZ012. Marine Gale Warning until 6pm EST this evening for ANZ430. Storm Warning until 6pm EST this evening for ANZ431-450>455. |
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