Marine Weather and Tide Forecast for Colwyn, PA
April 22, 2025 6:01 PM EDT (22:01 UTC) Change Location
 | Sunrise 6:10 AM Sunset 7:47 PM Moonrise 2:29 AM Moonset 12:46 PM |
ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 402 Pm Edt Tue Apr 22 2025
Tonight - NW winds 5 to 10 kt, becoming N late. Seas 1 foot or less. Wave detail: nw 1 foot at 3 seconds.
Wed - NE winds 5 to 10 kt, becoming S in the afternoon. Seas 1 foot or less. Wave detail: N 1 foot at 2 seconds and W 1 foot at 4 seconds.
Wed night - S winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. Wave detail: se 1 foot at 3 seconds.
Thu - SE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Seas 1 foot or less.
Thu night - SE winds 5 to 10 kt, diminishing to around 5 kt after midnight. Seas 1 foot or less. Wave detail: se 1 foot at 3 seconds.
Fri - SE winds around 5 kt, increasing to 5 to 10 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less. Wave detail: se 1 foot at 3 seconds.
Fri night - S winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.
Sat - SW winds 10 to 15 kt. Seas around 2 ft. Showers likely.
Sat night - NW winds 10 to 15 kt. Seas around 2 ft. Showers likely, mainly in the evening.
Sun - N winds 10 to 15 kt. Seas around 2 ft in the morning, then 1 foot or less.
Sun night - E winds 5 to 10 kt, becoming N after midnight. Seas 1 foot or less.
ANZ400 402 Pm Edt Tue Apr 22 2025
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay - High pressure builds down out of canada, across the great lakes region and into the mid atlantic region tonight through Wednesday. The high builds offshore Wednesday night and remains through Thursday night. The high finally begins to move out to sea Friday, before a warm front lifts northward across the area Friday night. A cold front will follow for Friday night into Saturday as low pressure lifts to the northeast out of the ohio valley Friday and into new england through Saturday. High pressure returns for Sunday into Monday of next week.
7 Day Forecast for Marine Location Near Colwyn, PA
NEW! Add second zone forecast
| Penrose Avenue Bridge Click for Map Tue -- 03:29 AM EDT Moonrise Tue -- 03:46 AM EDT 0.90 feet Low Tide Tue -- 06:12 AM EDT Sunrise Tue -- 09:09 AM EDT 5.86 feet High Tide Tue -- 01:46 PM EDT Moonset Tue -- 04:34 PM EDT 0.91 feet Low Tide Tue -- 07:46 PM EDT Sunset Tue -- 09:53 PM EDT 5.49 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Penrose Avenue Bridge, Schuylkill River, Pennsylvania, Tide feet
| 12 am |
| 3 |
| 1 am |
| 2.2 |
| 2 am |
| 1.5 |
| 3 am |
| 1.1 |
| 4 am |
| 0.9 |
| 5 am |
| 1.7 |
| 6 am |
| 3.3 |
| 7 am |
| 4.8 |
| 8 am |
| 5.6 |
| 9 am |
| 5.9 |
| 10 am |
| 5.7 |
| 11 am |
| 4.9 |
| 12 pm |
| 3.9 |
| 1 pm |
| 3 |
| 2 pm |
| 2.2 |
| 3 pm |
| 1.6 |
| 4 pm |
| 1 |
| 5 pm |
| 1 |
| 6 pm |
| 2 |
| 7 pm |
| 3.6 |
| 8 pm |
| 4.7 |
| 9 pm |
| 5.3 |
| 10 pm |
| 5.5 |
| 11 pm |
| 5.1 |
| Philadelphia Click for Map Tue -- 01:10 AM EDT -1.66 knots Max Ebb Tue -- 03:29 AM EDT Moonrise Tue -- 04:51 AM EDT 0.00 knots Slack Tue -- 06:12 AM EDT Sunrise Tue -- 06:46 AM EDT 1.61 knots Max Flood Tue -- 10:07 AM EDT -0.00 knots Slack Tue -- 01:42 PM EDT -1.73 knots Max Ebb Tue -- 01:45 PM EDT Moonset Tue -- 05:42 PM EDT 0.00 knots Slack Tue -- 07:34 PM EDT 1.40 knots Max Flood Tue -- 07:46 PM EDT Sunset Tue -- 10:54 PM EDT -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Philadelphia, Pennsylvania Current, knots
| 12 am |
| -1.5 |
| 1 am |
| -1.7 |
| 2 am |
| -1.6 |
| 3 am |
| -1.2 |
| 4 am |
| -0.8 |
| 5 am |
| 0.2 |
| 6 am |
| 1.3 |
| 7 am |
| 1.6 |
| 8 am |
| 1.2 |
| 9 am |
| 0.8 |
| 10 am |
| 0.1 |
| 11 am |
| -0.8 |
| 12 pm |
| -1.4 |
| 1 pm |
| -1.7 |
| 2 pm |
| -1.7 |
| 3 pm |
| -1.6 |
| 4 pm |
| -1.4 |
| 5 pm |
| -0.8 |
| 6 pm |
| 0.4 |
| 7 pm |
| 1.3 |
| 8 pm |
| 1.4 |
| 9 pm |
| 1.2 |
| 10 pm |
| 0.8 |
| 11 pm |
| -0.1 |
Area Discussion for Philadelphia/Mount Holly, PA
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FXUS61 KPHI 221839 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 239 PM EDT Tue Apr 22 2025
SYNOPSIS
High pressure builds down out of Canada, across the Great Lakes region and into the Mid Atlantic region tonight through Wednesday. The high builds offshore Wednesday night and remains through Thursday night. The high finally begins to move out to sea Friday, before a warm front lifts northward across the area Friday night. A cold front will follow for Friday night into Saturday as low pressure lifts to the northeast out of the Ohio Valley Friday and into New England through Saturday. High pressure returns for Sunday into Monday of next week.
NEAR TERM /THROUGH WEDNESDAY/
High pressure from the Great Lakes build in tonight and keeps the fair weather across our area. Skies will be mostly clear with just high clouds at times. The new airmass is several degrees cooler that the previous one so low tonight will drop into the low/mid 40s for NW counties and upper 40s to low 50s elsewhere. For Delmarva and SE NJ lows will probably end up closer to 55. Winds will be Northwest to North at 5 to 10 mph this evening and less than 5 mph overnight.
Wednesday, fair weather continues with mostly sunny skies. High temps will range from the upper 60s for the Poconos to the mid 70s for metro Philadelphia and srn NJ. Light Northeast to East winds expected. Highs will be noticeably cooler (60s) along the shore areas with an onshore flow developing/strengthening by afternoon.
SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/
High pressure will build offshore beginning Wednesday night and remain near the are through Thursday night. This will keep fair weather in the forecast through Thursday night, with temperatures above normal.
LONG TERM /FRIDAY THROUGH TUESDAY/
The high will begin to move out to sea through the day Friday, before a warm front lifts across the area later Friday into Friday night. A couple of short wave/vorticity impulses may move across the area during the day, which could lead to a few shower during the afternoon north of the warm front. By Friday night into, a cold front will approach and move across the area as an area of low pressure moves out of the Ohio Valley Friday night and into New England through Saturday. Shower chances will increase Friday night into Saturday, and with some weak instability, there is an isolated chance of a few thunderstorms.
As PWs increase to over 1.5 inches in some areas, some period of moderate to heavy rain will be possible. Above normal temperatures will remain for Friday into Saturday.
The cold front pushes offshore Saturday night, before high pressure builds into the Mid Atlantic region Sunday into Monday, before shifting offshore Monday night and out to sea Tuesday.
Dry weather will return for Saturday night through Tuesday, and after a brief period of near normal temperatures Saturday night int Sunday, above normal temperatures return for Sunday night through Tuesday.
AVIATION /19Z TUESDAY THROUGH SUNDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
Tonight... Great VFR weather expected with the few daytime Cu, which will dissipate by 23Z, and just high clouds at times.
Winds will be West to Northwest at 10 to 15 kts with a couple gusts to 20 kts thru about 23Z. After that, winds will slowly turn more Northerly and then diminish to around 5 kts. By dawn, Northeast winds around 5 kts are expected. High confid.
Wednesday... VFR expected with mostly clear skies. Light East to Northeast winds. A sea-breeze may develop for KACY by afternoon. High confid.
Outlook...
Wednesday night-Thursday night...VFR conditions expected
Friday-Saturday...Sub VFR conditions likely, especially Friday night into early Saturday as rain chances increase.
Saturday night-Monday...VFR conditions expected.
MARINE
It's been a nice day across the waters with fair skies and winds around 10 knots. These pleasant conditions will continue tonight and Wednesday with high pressure across the area. Winds will be West to Northwest this evening and then turn
Outlook...
Wednesday night-Friday...Conditions expected to remain below advisory levels.
Friday night-Sunday...Winds likely remain below advisory levels, however seas may approach and linger near 5 feet through the weekend.
Sunday night-Monday...Conditions likely remain below advisory levels.
FIRE WEATHER
Very marginal conditions for the spread of wildfire are in place through the next two days. Today, RHs will be around 30% with gusts nearing 20-25 MPH at times, though fuels remain moist enough and some areas seeing greenup according to our Fire Weather partners. As a result, not expecting any statements to be issued today.
RHs are a touch lower on Wednesday and Thursday, but winds will be light. RHs recover this weekend, with no fire weather concerns expected.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
Area Forecast Discussion National Weather Service Mount Holly NJ 239 PM EDT Tue Apr 22 2025
SYNOPSIS
High pressure builds down out of Canada, across the Great Lakes region and into the Mid Atlantic region tonight through Wednesday. The high builds offshore Wednesday night and remains through Thursday night. The high finally begins to move out to sea Friday, before a warm front lifts northward across the area Friday night. A cold front will follow for Friday night into Saturday as low pressure lifts to the northeast out of the Ohio Valley Friday and into New England through Saturday. High pressure returns for Sunday into Monday of next week.
NEAR TERM /THROUGH WEDNESDAY/
High pressure from the Great Lakes build in tonight and keeps the fair weather across our area. Skies will be mostly clear with just high clouds at times. The new airmass is several degrees cooler that the previous one so low tonight will drop into the low/mid 40s for NW counties and upper 40s to low 50s elsewhere. For Delmarva and SE NJ lows will probably end up closer to 55. Winds will be Northwest to North at 5 to 10 mph this evening and less than 5 mph overnight.
Wednesday, fair weather continues with mostly sunny skies. High temps will range from the upper 60s for the Poconos to the mid 70s for metro Philadelphia and srn NJ. Light Northeast to East winds expected. Highs will be noticeably cooler (60s) along the shore areas with an onshore flow developing/strengthening by afternoon.
SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY NIGHT/
High pressure will build offshore beginning Wednesday night and remain near the are through Thursday night. This will keep fair weather in the forecast through Thursday night, with temperatures above normal.
LONG TERM /FRIDAY THROUGH TUESDAY/
The high will begin to move out to sea through the day Friday, before a warm front lifts across the area later Friday into Friday night. A couple of short wave/vorticity impulses may move across the area during the day, which could lead to a few shower during the afternoon north of the warm front. By Friday night into, a cold front will approach and move across the area as an area of low pressure moves out of the Ohio Valley Friday night and into New England through Saturday. Shower chances will increase Friday night into Saturday, and with some weak instability, there is an isolated chance of a few thunderstorms.
As PWs increase to over 1.5 inches in some areas, some period of moderate to heavy rain will be possible. Above normal temperatures will remain for Friday into Saturday.
The cold front pushes offshore Saturday night, before high pressure builds into the Mid Atlantic region Sunday into Monday, before shifting offshore Monday night and out to sea Tuesday.
Dry weather will return for Saturday night through Tuesday, and after a brief period of near normal temperatures Saturday night int Sunday, above normal temperatures return for Sunday night through Tuesday.
AVIATION /19Z TUESDAY THROUGH SUNDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
Tonight... Great VFR weather expected with the few daytime Cu, which will dissipate by 23Z, and just high clouds at times.
Winds will be West to Northwest at 10 to 15 kts with a couple gusts to 20 kts thru about 23Z. After that, winds will slowly turn more Northerly and then diminish to around 5 kts. By dawn, Northeast winds around 5 kts are expected. High confid.
Wednesday... VFR expected with mostly clear skies. Light East to Northeast winds. A sea-breeze may develop for KACY by afternoon. High confid.
Outlook...
Wednesday night-Thursday night...VFR conditions expected
Friday-Saturday...Sub VFR conditions likely, especially Friday night into early Saturday as rain chances increase.
Saturday night-Monday...VFR conditions expected.
MARINE
It's been a nice day across the waters with fair skies and winds around 10 knots. These pleasant conditions will continue tonight and Wednesday with high pressure across the area. Winds will be West to Northwest this evening and then turn
Outlook...
Wednesday night-Friday...Conditions expected to remain below advisory levels.
Friday night-Sunday...Winds likely remain below advisory levels, however seas may approach and linger near 5 feet through the weekend.
Sunday night-Monday...Conditions likely remain below advisory levels.
FIRE WEATHER
Very marginal conditions for the spread of wildfire are in place through the next two days. Today, RHs will be around 30% with gusts nearing 20-25 MPH at times, though fuels remain moist enough and some areas seeing greenup according to our Fire Weather partners. As a result, not expecting any statements to be issued today.
RHs are a touch lower on Wednesday and Thursday, but winds will be light. RHs recover this weekend, with no fire weather concerns expected.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| PHBP1 - 8545240 - Philadelphia, PA | 4 mi | 43 min | 79°F | 54°F | 29.96 | |||
| BDSP1 | 9 mi | 43 min | 77°F | 56°F | 29.98 | |||
| MRCP1 - 8540433 - Marcus Hook, PA | 13 mi | 43 min | 77°F | 58°F | 29.98 | |||
| BDRN4 - 8539094 - Burlington, Delaware River, NJ | 22 mi | 85 min | WNW 11G | 76°F | 58°F | 29.95 | ||
| NBLP1 - 8548989 - Newbold, PA | 29 mi | 43 min | W 12G | 75°F | 59°F | 29.98 | ||
| DELD1 - 8551762 - Delaware City, DE | 30 mi | 43 min | WNW 5.1G | 78°F | 29.98 | |||
| RDYD1 - 8551910 - Reedy Point, DE | 30 mi | 43 min | 77°F | 57°F | 29.97 | |||
| CHCM2 - 8573927 - Chesapeake City, MD | 41 mi | 43 min | W 8G | 77°F | 58°F | 29.99 | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 47 mi | 31 min | SSW 7 | 82°F | 30.01 | 48°F |
Wind History for Burlington, Delaware River, NJ
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KPHL PHILADELPHIA INTL,PA | 3 sm | 7 min | WNW 15 | 10 sm | Mostly Cloudy | 77°F | 41°F | 28% | 29.99 | |
| KPNE NORTHEAST PHILADELPHIA,PA | 16 sm | 7 min | W 15 | 10 sm | Clear | 75°F | 45°F | 34% | 30.00 | |
| KLOM WINGS FIELD,PA | 17 sm | 6 min | NW 07 | 10 sm | Clear | 72°F | 41°F | 33% | 30.01 | |
| KVAY SOUTH JERSEY RGNL,NJ | 19 sm | 7 min | WNW 09G19 | 10 sm | Clear | 77°F | 45°F | 32% | 29.97 | |
| KOQN BRANDYWINE RGNL,PA | 21 sm | 6 min | W 09 | 10 sm | Clear | 72°F | 41°F | 33% | 30.02 |
Link to 1 hour of 5 minute data for KPHL
Terminal Aerodrome Forecast (TAF) for KPHL
Wind History Graph: PHL
(wind in knots)
GEOS Local Image of north east
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Philadelphia, PA,
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