Marine Weather and Tide Forecast for West Reading, PA
November 28, 2023 2:33 PM EST (19:33 UTC)
Sunrise 7:02AM Sunset 4:40PM Moonrise 5:27PM Moonset 8:36AM
ANZ530 Chesapeake Bay North Of Pooles Island- 1233 Pm Est Tue Nov 28 2023
.gale warning in effect until 6 pm est this evening...
.small craft advisory in effect from 6 pm est this evening through Wednesday morning...
This afternoon..W winds 20 kt with gusts to 35 kt. Waves 2 ft. Scattered snow showers. Vsby 1 to 3 nm.
Tonight..W winds 15 to 20 kt. Gusts up to 35 kt. Waves 2 ft.
Wed..SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Wed night..SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Thu..SW winds 5 to 10 kt. Waves 1 ft.
Thu night..S winds 5 to 10 kt. Waves 1 ft.
Fri..S winds 5 to 10 kt...becoming N after midnight. Waves 1 ft. Rain in the afternoon. A chance of rain in the evening.
Sat..E winds 5 to 10 kt. Waves 1 ft. A chance of rain through the night.
.gale warning in effect until 6 pm est this evening...
.small craft advisory in effect from 6 pm est this evening through Wednesday morning...
This afternoon..W winds 20 kt with gusts to 35 kt. Waves 2 ft. Scattered snow showers. Vsby 1 to 3 nm.
Tonight..W winds 15 to 20 kt. Gusts up to 35 kt. Waves 2 ft.
Wed..SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
Wed night..SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
Thu..SW winds 5 to 10 kt. Waves 1 ft.
Thu night..S winds 5 to 10 kt. Waves 1 ft.
Fri..S winds 5 to 10 kt...becoming N after midnight. Waves 1 ft. Rain in the afternoon. A chance of rain in the evening.
Sat..E winds 5 to 10 kt. Waves 1 ft. A chance of rain through the night.
ANZ500 1233 Pm Est Tue Nov 28 2023
Synopsis for the tidal potomac and md portion of the chesapeake bay..
high pressure gradually builds toward the waters through tonight. Hazardous marine conditions expected through Tuesday evening, with small craft advisories likely needed through Wednesday morning. Another frontal system moves through the area by late in the week, with small craft advisories possible Thursday night and Friday. High pressure returns briefly Saturday before another front arrives Sunday into early next week.
Synopsis for the tidal potomac and md portion of the chesapeake bay..
high pressure gradually builds toward the waters through tonight. Hazardous marine conditions expected through Tuesday evening, with small craft advisories likely needed through Wednesday morning. Another frontal system moves through the area by late in the week, with small craft advisories possible Thursday night and Friday. High pressure returns briefly Saturday before another front arrives Sunday into early next week.
Area Discussion for - Philadelphia/Mount Holly, PA
(on/off) HelpNOTE: mouseover dotted underlined text for definition
FXUS61 KPHI 281835 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 135 PM EST Tue Nov 28 2023
SYNOPSIS
Colder air will continue to drape over the region through today and tonight. Surface high pressure will build in today and hold a firm grasp over the region through Thursday. Low pressure approaches Friday with the potential for a stronger area of low pressure affecting the area by early next week.
NEAR TERM /THROUGH TONIGHT/
For today, it will feel more like January as strong cold air advection continues. 850 mb temperatures will drop into the -10 to -14 C range, which will result in surface temperatures only getting into the mid to upper 30s. It will feel even colder than that as deep mixing will allow for gusty winds to get down to the surface. Gusts will peak in the 30-35 MPH range later this afternoon, though it wouldn't be a surprise to see some 40 MPH gusts as 30-35 kt winds are not far off the surface. The resulting wind chills due to the cold and blustery conditions will be in the 20s. Skies will be partly to mostly cloudy with a stratocumulus deck increasing in coverage as the morning goes on.
Perhaps the more intriguing portion of the forecast will be for later today and the potential for a few snow showers. A trough axis is pushing into the area this afternoon, with modest to strong positive vorticity advection out ahead of it. This has provided sufficient lift upstream to support some lake effect streamers, snow showers, and flurries. The latest guidance continues to indicate this activity will make it into the northern and western portions of our area. PoPs were updated to reflect the latest trends in radar, satellite, and hi-res guidance. The latest mesoanalysis indicates the snow showers across central Pennsylvania and the I-80 corridor will continue to push southeast eventually toward the I-78 corridor. The snow showers that moved across southeastern Pennsylvania and southern/central New Jersey were moving offshore of Ocean County as of 11 AM. Some flurries may make it down into this corridor later this afternoon, but the main show is likely over for those locations.
A Special Weather Statement was issued for our northwestern counties where the scattered snow showers may result in some slippery spots on bridges, overpasses, and any other untreated roadways or paved surfaces. Farther southeast, impacts are unlikely as road temperatures are well above freezing and the boundary layer is very dry.
Taking a look at the overnight guidance, moisture will work its way into the lower and mid-levels with RH values within the 0-2 km portion of the atmosphere getting above 70%, primarily west of Philadelphia. Low level lapse rates will be quite high as well, indicating an unstable atmosphere, with some model soundings showing low-level lapse rates around 9 C/km. 850-700 mb lapse rates look to hover around 8 C/km. Model soundings also show marginal CAPE values within the DGZ, with the highest instability again north and west of the Philly metro. Finally, progged snow squall parameter values hover around 1 to 4 (anything above 1 represents favorable conditions for squalls). The highest values (3 to 4) are within the Pocono plateau with lower values (around/greater than 1) are within the Lehigh Valley. A primary limiting factor remains, which is the amount of dry air within the low-levels. Dewpoint depressions at the surface will be around 15-20F during the afternoon. This should limit the threat for squalls/heavy snow, and result in a more snow shower and flurries setup. Not everyone will see snow, and PoPs hover around 30- 50% west of the Fall Line, but for those that do, accumulations should be a few tenths at most, so nothing overall significant. If a heavier band can overcome the dry air however, values up to an inch are possible.
For tonight, skies will clear out as the stratocumulus deck scatters. Winds will diminish with the nighttime inversion trying to set up, but some spots may not fully decouple. Overnight lows will be near 20 degrees for the most part, with more rural/sheltered areas and higher elevations getting into the upper teens. Wind chills tonight will be well into the teens. A rather cold night overall, and the coldest night so far this season for many locations.
SHORT TERM /WEDNESDAY THROUGH THURSDAY/
Quiet weather will dominate for the short term period due to high pressure nearby to our south. After a cold start, temperatures will still struggle to recover for Wednesday as we remain in a cold airmass for this time of year. The day should feature mainly sunny skies over Delmarva and southern NJ with some periods mid and high clouds across eastern PA into NW NJ as this area will be near the southern fringe of a system passing by well to our north. Highs look to range mainly from the mid 30s to low 40s except only around 30 over the Pocono Plateau.
Mainly clear skies with light winds for Wednesday night will lead to another night of good radiational cooling. However with the winds turning southwest, it likely won't be quite as cold as Tuesday night. Expect lows mostly in the mid 20s except low 20s over the Poconos and upper 20s to around 30 near the coast and the Delaware Bay.
For Thursday, an area of low pressure will lift north and east through northern Ontario and Quebec helping strengthen the warm advection pattern along the east coast as high pressure also moves off the coast into the Atlantic. This will result in temperatures moderating back to the upper 40s to low 50s for highs as SW flow persists. The day should overall feature partly to mostly sunny skies.
High pressure will continue lose its influence over the area for Thursday night as it continues moving east into the Atlantic.
Meanwhile the next low pressure system will be organizing itself near Missouri with a cloud deck extending well north and east of the low's center and spreading increasing clouds into the area through the night. This will help lead to a relatively milder night with lows mostly in the mid 30s except low 30s over the Lehigh Valley and the southern Poconos and upper 30s to around 40 near the coast.
LONG TERM /THURSDAY NIGHT THROUGH MONDAY/
The weather pattern continues to trend milder but more unsettled for the long term period as a long wave trough sets up near the central CONUS putting the east coast in a broad SW flow. An initial quick hitting system looks to move through with mostly just some rainfall for Friday into Friday night as an upper level wave moves quickly through the flow. The exception will be across the southern Poconos where there is a slight chance of a very brief period of snow or mixed precip at the onset if the precip moves in early enough in the day. It's not a great set up for snow though, even in the southern Poconos, as high pressure will out over the Atlantic, not to the north of the area. This will result in a continuing southerly flow as opposed to a cold air damming set up. Otherwise, it does not look to be a particularly impactful system for Friday, other than making for a wet end to the week, as rainfall amounts should be a half inch or less.
The forecast gets a bit more uncertain heading into the weekend and beyond but looking at the big picture, another weak impulse looks to move through around about Saturday or Saturday night however there won't be much moisture with this. For this reason, we keep the forecast dry for Saturday but it should be mostly cloudy. A stronger area of low pressure driven by the main upper level trough axis as it swings east looks to eventually form and affect the area beginning either by late Sunday or Monday. The timing details remain uncertain at this time as there are differences between our forecast models but all currently show a stronger low eventually affecting the east coast by roughly around the Sunday / Monday timeframe.
Precipitation amounts could be more significant with this system but it should again remain warm enough for it to be a mainly rain event.
Given the uncertainty in the forecast, we again stayed close to the NBM with this update.
AVIATION /19Z TUESDAY THROUGH SUNDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas...
Today...VFR with scattered to broken stratocumulus deck. W to NW winds 15-20 kts with gusts of 25-30 kts. Light snow showers at times expected for KRDG/KABE. Flurries possible for the I-95 sites. Moderate confidence overall.
CAM guidance continues to indicate some more moderate but quick passing snow showers from the northwest will trail down to our region from about 18-23z. Similar snow showers earlier today brought visibility restrictions to some sites for a brief period. Current thinking remains that TAF amendments to include TEMPO groups may be needed later on to cover any quick restrictions from snow showers. Any prevailing changes are not expected. Snow showers making it to KABE/KRDG are more likely than snow showers making it further southeast.
Tonight...VFR. W winds around 10-15 kts with gusts near 20 kts for the first half of the night. Winds will diminish to around 8-12 kts out of the west with gusts ceasing later in the night. High confidence.
Outlook...
Wednesday through Thursday...VFR. SW winds 5-10 kts. High confidence.
Friday...Sub-VFR with SHRA/RA. SSW winds 10-15 kts. Moderate confidence.
Saturday...Mainly VFR. Northerly winds 8-12 kts. Moderate confidence.
MARINE
A Gale Warning is in effect through this evening for all marine zones as west/northwest winds around 25-30 kt and gusts between 35-40 kt are expected along the waters later today and into tonight. Seas will be around 4 to 6 feet today.
The Gale Warning expires at midnight and a Small Craft Advisory will be needed through at least Wednesday morning. After midnight, westerly winds around 15-20 kt and gusts 25-30 kt are anticipated.
Seas will be around 3 to 5 feet.
Outlook...
Wednesday...No marine headlines are anticipated.
Wednesday night...SCA possible as winds may gust up to 25 knots.
Thursday...No marine headlines are anticipated.
Thursday night through Friday...SCA likely. Seas building 4-6 feet with frequent gusts of around 25-30 kts.
Saturday...SCA possible; seas lingering around 5 feet.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Gale Warning until midnight EST tonight for ANZ430-431-450>455.
Area Forecast Discussion National Weather Service Mount Holly NJ 135 PM EST Tue Nov 28 2023
SYNOPSIS
Colder air will continue to drape over the region through today and tonight. Surface high pressure will build in today and hold a firm grasp over the region through Thursday. Low pressure approaches Friday with the potential for a stronger area of low pressure affecting the area by early next week.
NEAR TERM /THROUGH TONIGHT/
For today, it will feel more like January as strong cold air advection continues. 850 mb temperatures will drop into the -10 to -14 C range, which will result in surface temperatures only getting into the mid to upper 30s. It will feel even colder than that as deep mixing will allow for gusty winds to get down to the surface. Gusts will peak in the 30-35 MPH range later this afternoon, though it wouldn't be a surprise to see some 40 MPH gusts as 30-35 kt winds are not far off the surface. The resulting wind chills due to the cold and blustery conditions will be in the 20s. Skies will be partly to mostly cloudy with a stratocumulus deck increasing in coverage as the morning goes on.
Perhaps the more intriguing portion of the forecast will be for later today and the potential for a few snow showers. A trough axis is pushing into the area this afternoon, with modest to strong positive vorticity advection out ahead of it. This has provided sufficient lift upstream to support some lake effect streamers, snow showers, and flurries. The latest guidance continues to indicate this activity will make it into the northern and western portions of our area. PoPs were updated to reflect the latest trends in radar, satellite, and hi-res guidance. The latest mesoanalysis indicates the snow showers across central Pennsylvania and the I-80 corridor will continue to push southeast eventually toward the I-78 corridor. The snow showers that moved across southeastern Pennsylvania and southern/central New Jersey were moving offshore of Ocean County as of 11 AM. Some flurries may make it down into this corridor later this afternoon, but the main show is likely over for those locations.
A Special Weather Statement was issued for our northwestern counties where the scattered snow showers may result in some slippery spots on bridges, overpasses, and any other untreated roadways or paved surfaces. Farther southeast, impacts are unlikely as road temperatures are well above freezing and the boundary layer is very dry.
Taking a look at the overnight guidance, moisture will work its way into the lower and mid-levels with RH values within the 0-2 km portion of the atmosphere getting above 70%, primarily west of Philadelphia. Low level lapse rates will be quite high as well, indicating an unstable atmosphere, with some model soundings showing low-level lapse rates around 9 C/km. 850-700 mb lapse rates look to hover around 8 C/km. Model soundings also show marginal CAPE values within the DGZ, with the highest instability again north and west of the Philly metro. Finally, progged snow squall parameter values hover around 1 to 4 (anything above 1 represents favorable conditions for squalls). The highest values (3 to 4) are within the Pocono plateau with lower values (around/greater than 1) are within the Lehigh Valley. A primary limiting factor remains, which is the amount of dry air within the low-levels. Dewpoint depressions at the surface will be around 15-20F during the afternoon. This should limit the threat for squalls/heavy snow, and result in a more snow shower and flurries setup. Not everyone will see snow, and PoPs hover around 30- 50% west of the Fall Line, but for those that do, accumulations should be a few tenths at most, so nothing overall significant. If a heavier band can overcome the dry air however, values up to an inch are possible.
For tonight, skies will clear out as the stratocumulus deck scatters. Winds will diminish with the nighttime inversion trying to set up, but some spots may not fully decouple. Overnight lows will be near 20 degrees for the most part, with more rural/sheltered areas and higher elevations getting into the upper teens. Wind chills tonight will be well into the teens. A rather cold night overall, and the coldest night so far this season for many locations.
SHORT TERM /WEDNESDAY THROUGH THURSDAY/
Quiet weather will dominate for the short term period due to high pressure nearby to our south. After a cold start, temperatures will still struggle to recover for Wednesday as we remain in a cold airmass for this time of year. The day should feature mainly sunny skies over Delmarva and southern NJ with some periods mid and high clouds across eastern PA into NW NJ as this area will be near the southern fringe of a system passing by well to our north. Highs look to range mainly from the mid 30s to low 40s except only around 30 over the Pocono Plateau.
Mainly clear skies with light winds for Wednesday night will lead to another night of good radiational cooling. However with the winds turning southwest, it likely won't be quite as cold as Tuesday night. Expect lows mostly in the mid 20s except low 20s over the Poconos and upper 20s to around 30 near the coast and the Delaware Bay.
For Thursday, an area of low pressure will lift north and east through northern Ontario and Quebec helping strengthen the warm advection pattern along the east coast as high pressure also moves off the coast into the Atlantic. This will result in temperatures moderating back to the upper 40s to low 50s for highs as SW flow persists. The day should overall feature partly to mostly sunny skies.
High pressure will continue lose its influence over the area for Thursday night as it continues moving east into the Atlantic.
Meanwhile the next low pressure system will be organizing itself near Missouri with a cloud deck extending well north and east of the low's center and spreading increasing clouds into the area through the night. This will help lead to a relatively milder night with lows mostly in the mid 30s except low 30s over the Lehigh Valley and the southern Poconos and upper 30s to around 40 near the coast.
LONG TERM /THURSDAY NIGHT THROUGH MONDAY/
The weather pattern continues to trend milder but more unsettled for the long term period as a long wave trough sets up near the central CONUS putting the east coast in a broad SW flow. An initial quick hitting system looks to move through with mostly just some rainfall for Friday into Friday night as an upper level wave moves quickly through the flow. The exception will be across the southern Poconos where there is a slight chance of a very brief period of snow or mixed precip at the onset if the precip moves in early enough in the day. It's not a great set up for snow though, even in the southern Poconos, as high pressure will out over the Atlantic, not to the north of the area. This will result in a continuing southerly flow as opposed to a cold air damming set up. Otherwise, it does not look to be a particularly impactful system for Friday, other than making for a wet end to the week, as rainfall amounts should be a half inch or less.
The forecast gets a bit more uncertain heading into the weekend and beyond but looking at the big picture, another weak impulse looks to move through around about Saturday or Saturday night however there won't be much moisture with this. For this reason, we keep the forecast dry for Saturday but it should be mostly cloudy. A stronger area of low pressure driven by the main upper level trough axis as it swings east looks to eventually form and affect the area beginning either by late Sunday or Monday. The timing details remain uncertain at this time as there are differences between our forecast models but all currently show a stronger low eventually affecting the east coast by roughly around the Sunday / Monday timeframe.
Precipitation amounts could be more significant with this system but it should again remain warm enough for it to be a mainly rain event.
Given the uncertainty in the forecast, we again stayed close to the NBM with this update.
AVIATION /19Z TUESDAY THROUGH SUNDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas...
Today...VFR with scattered to broken stratocumulus deck. W to NW winds 15-20 kts with gusts of 25-30 kts. Light snow showers at times expected for KRDG/KABE. Flurries possible for the I-95 sites. Moderate confidence overall.
CAM guidance continues to indicate some more moderate but quick passing snow showers from the northwest will trail down to our region from about 18-23z. Similar snow showers earlier today brought visibility restrictions to some sites for a brief period. Current thinking remains that TAF amendments to include TEMPO groups may be needed later on to cover any quick restrictions from snow showers. Any prevailing changes are not expected. Snow showers making it to KABE/KRDG are more likely than snow showers making it further southeast.
Tonight...VFR. W winds around 10-15 kts with gusts near 20 kts for the first half of the night. Winds will diminish to around 8-12 kts out of the west with gusts ceasing later in the night. High confidence.
Outlook...
Wednesday through Thursday...VFR. SW winds 5-10 kts. High confidence.
Friday...Sub-VFR with SHRA/RA. SSW winds 10-15 kts. Moderate confidence.
Saturday...Mainly VFR. Northerly winds 8-12 kts. Moderate confidence.
MARINE
A Gale Warning is in effect through this evening for all marine zones as west/northwest winds around 25-30 kt and gusts between 35-40 kt are expected along the waters later today and into tonight. Seas will be around 4 to 6 feet today.
The Gale Warning expires at midnight and a Small Craft Advisory will be needed through at least Wednesday morning. After midnight, westerly winds around 15-20 kt and gusts 25-30 kt are anticipated.
Seas will be around 3 to 5 feet.
Outlook...
Wednesday...No marine headlines are anticipated.
Wednesday night...SCA possible as winds may gust up to 25 knots.
Thursday...No marine headlines are anticipated.
Thursday night through Friday...SCA likely. Seas building 4-6 feet with frequent gusts of around 25-30 kts.
Saturday...SCA possible; seas lingering around 5 feet.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...Gale Warning until midnight EST tonight for ANZ430-431-450>455.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| MRCP1 - 8540433 - Marcus Hook, PA | 46 mi | 45 min | 37°F | 29.93 | ||||
| PHBP1 - 8545240 - Philadelphia, PA | 51 mi | 45 min | 37°F | 46°F | 29.91 |
toggle option: (graph/table)
No data
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KRDG READING RGNL/CARL A SPAATZ FIELD,PA | 3 sm | 39 min | WNW 18G30 | 10 sm | Partly Cloudy | Lt Snow | 34°F | 12°F | 40% | 29.94 |
| KPTW HERITAGE FIELD,PA | 22 sm | 39 min | WNW 13G25 | 10 sm | Mostly Cloudy | 34°F | 12°F | 40% | 29.93 | |
| KLNS LANCASTER,PA | 24 sm | 40 min | WNW 23G33 | 10 sm | Partly Cloudy | 34°F | 12°F | 40% | 29.96 |
Wind History from RDG
(wind in knots)Marcus Hook
Click for Map
Tue -- 12:20 AM EST 5.35 feet High Tide
Tue -- 06:56 AM EST Sunrise
Tue -- 07:32 AM EST 0.26 feet Low Tide
Tue -- 08:27 AM EST Moonset
Tue -- 12:42 PM EST 6.29 feet High Tide
Tue -- 04:34 PM EST Sunset
Tue -- 05:22 PM EST Moonrise
Tue -- 08:15 PM EST 0.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 12:20 AM EST 5.35 feet High Tide
Tue -- 06:56 AM EST Sunrise
Tue -- 07:32 AM EST 0.26 feet Low Tide
Tue -- 08:27 AM EST Moonset
Tue -- 12:42 PM EST 6.29 feet High Tide
Tue -- 04:34 PM EST Sunset
Tue -- 05:22 PM EST Moonrise
Tue -- 08:15 PM EST 0.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Marcus Hook, Pennsylvania, Tide feet
| 12 am |
| 5.3 |
| 1 am |
| 5.2 |
| 2 am |
| 4.4 |
| 3 am |
| 3.5 |
| 4 am |
| 2.7 |
| 5 am |
| 2 |
| 6 am |
| 1.2 |
| 7 am |
| 0.4 |
| 8 am |
| 0.4 |
| 9 am |
| 1.7 |
| 10 am |
| 3.5 |
| 11 am |
| 5 |
| 12 pm |
| 6 |
| 1 pm |
| 6.2 |
| 2 pm |
| 5.6 |
| 3 pm |
| 4.8 |
| 4 pm |
| 3.9 |
| 5 pm |
| 3.1 |
| 6 pm |
| 2.2 |
| 7 pm |
| 1 |
| 8 pm |
| 0.2 |
| 9 pm |
| 0.6 |
| 10 pm |
| 2 |
| 11 pm |
| 3.4 |
Tide / Current data from XTide NOT FOR NAVIGATION
Edgemoor, Delaware River, Delaware, Tide feet
Philadelphia, PA,
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