Wednesday, January27, 2021
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Marine Weather and Tides
Salem, NJ

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:12AMSunset 5:18PM Wednesday January 27, 2021 8:21 PM EST (01:21 UTC) Moonrise 4:05PMMoonset 6:37AM Illumination 100% Phase: Full Moon; Moon at 15 days in cycle
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.
Marine Forecasts
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ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 702 Pm Est Wed Jan 27 2021
.gale warning in effect from 7 am est Thursday through Friday afternoon...
Tonight..N winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt late. Waves 2 ft or less, then around 3 ft after midnight.
Thu..N winds 15 to 20 kt with gusts up to 25 kt, becoming nw 20 to 25 kt with gusts up to 35 kt in the late morning and afternoon. Waves around 3 ft.
Thu night..NW winds 20 to 25 kt, diminishing to 15 to 20 kt late. Gusts up to 35 kt. Waves 2 ft or less. A chance of light freezing spray in the late evening and overnight.
Fri..NW winds 15 to 20 kt, increasing to 20 to 25 kt in the late morning and afternoon. Gusts up to 35 kt. Waves 2 ft or less. A chance of light freezing spray until late afternoon.
Fri night..NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Waves 2 ft or less.
Sat..NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 ft or less.
Sat night..NW winds 5 to 10 kt, becoming N after midnight. Waves 2 ft or less.
Sun..E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 2 ft or less. A chance of snow. A chance of rain in the afternoon. Vsby 1 to 3 nm.
Sun night..NE winds 10 to 15 kt. Waves 2 ft or less. Rain and snow likely. Vsby 1 to 3 nm.
Mon..NE winds 15 to 20 kt. Waves 2 ft or less. Rain and snow likely, mainly in the morning. Vsby 1 to 3 nm.
Mon night..N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Waves 2 ft or less. A chance of rain and snow in the evening. Vsby 1 to 3 nm.
ANZ400 701 Pm Est Wed Jan 27 2021
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A low pressure system will shift further off the carolina coast into tomorrow. High pressure, bringing cold air, will build into our region through Saturday night. Another low pressure system is forecast to pass just south of our region Sunday night through Monday.


7 Day Forecast for Marine Location Near Salem, NJ
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location: 39.58, -75.48     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 280030 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 730 PM EST Wed Jan 27 2021

SYNOPSIS. A low pressure system will shift further off the Carolina coast into tomorrow. High pressure, bringing cold air, will build into our region through Saturday night. Another low pressure system is forecast to pass just south of our region Sunday night through Monday.

NEAR TERM /THROUGH THURSDAY/. No big changes so far this evening to the forecast, except to increase cloud cover for the next several hours as clouds have been slow to dissipate across the area. Lower clouds may still dissipate some later this evening, however, there will also be an increase in mid to high level cloudiness overnight.

As we go into the overnight period, a low pressure system will move from the Carolinas eastward off the coast as it rapidly strengthens. The storm will pass far enough to our south keeping the region free from precip. Also, as high pressure moves from central Canada south and east towards the upper Midwest this will result in a strengthening pressure gradient helping drive arctic air towards the region. Lows will be mainly in the 20s except teens over the southern Poconos.

For Thursday, the aformentioned low continues to rapidly deepen south and east of the area off the coast while high pressure continues to build south into the Midwest. This will keep the pressure gradient strong and if anything it should actually tighten. The result will be a very windy day as arctic air moves across the region in a cold advection pattern so temperatures will be cold and not going up too much with highs mainly in the upper 20s to mid 30s. However with NW winds 15 to 25 gusting 25 to 35 mph it will feel much colder than this! The good news is that following morning cloud cover it should start to clear in the afternoon as the storm over the ocean pulls away.

SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY/. The main story through the short term will be the windy and cold conditions. Through much of this period, we will be stuck in between the departing low (shifting further east off the Carolina coast) and the high building south over the western Great Lakes. Central MSP in the high is expected to be an impressive 1040 mb. Not surprisingly, we will have a tight pressure gradient over our region Thursday night into Friday.

At this point, I've kept the forecast below wind advisory as the tightest pressure gradient is likely to occur late Thursday night into Friday morning. Model soundings depict the peak winds in the mixing layer right at 40 kt, so it is unlikely that we will have efficient enough mixing, especially given the time of day, to reach wind advisory criteria.

Regardless of the exact wind speeds, it will be cold. With Friday possibly being the coldest day of the season so far. Even with a blend of guidance, it appears that most, if not all, of the region will be below freezing on Friday. Some slight air mass modification on Saturday means temperatures may be a few degrees higher, but still well below normal.

LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/. The big story in the long term remains the low pressure system Sunday into late Monday, which could be a classic

What has changed: No major changes with this forecast update. Guidance came in to some better agreement with the track of the low, but even with the minor differences, could result in significant changes as far as impacts to our region. Thus, for the latest forecast update, stayed close to the previous forecast and a blend of guidance.

Timing: There are still some large differences between models with the timing of this system. Precipitation could come in as early as Sunday afternoon, and could linger as late as Tuesday, depending on how progressive the system is.

Precipitation type: As mentioned above, the track will be a big factor in the ultimate impacts for our region, especially with regards to precipitation type. The closer the low gets to our region, the more likely we are see wintry mix across the region. If the track is further south, as some of the operational models are trending, it could be more snow.

Precipitation amounts: We won't have a better idea on precipitation amounts through this event until at least Saturday.

Other hazards: As is often the case with coastal lows, winds could be a concern, especially near the coast. given the differences in timing and tracks, a blend of guidance will tend to smooth out the peak gusts in these situations, so have gone above guidance with winds, primarily on Monday which looks like it could be the peak of the winds. For now though, this is still below wind advisory levels.

Tuesday and Wednesday . Once the coastal low clears out, tranquil but cool weather looks to prevail over our region through mid week.

AVIATION /00Z THURSDAY THROUGH MONDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . VFR conditions will persist, with occasional MVFR ceilings at ABE and TTN early. North to northwest winds 5-10 knots, occasional gusts 15-20 knots, especially late. High confidence.

Thursday . VFR conditions expected. Northwest winds increasing to 15 to 20 knots gusting 25 to 30 knots by late morning into the afternoon.

Outlook .

Friday . VFR conditions expected. Northwesterly winds 15-30 kt with gusts up to 35 kt. High confidence on the overall pattern, but moderate confidence on the peak winds.

Saturday . VFR conditions expected. Northwest winds 10-15 kt with gusts up to 20 kt. Moderate confidence.

Sunday and Monday . Starting VFR, but could see MVFR and even IFR conditions develop as early as Sunday afternoon with a storm system passing just south of our region. MVFR and IFR conditions are likely to continue for much of the day Monday. Visibility restrictions with precipitation are likely for at least part of this period, but still uncertainty as to what type of precipitation we will see.

MARINE. NW winds will occasional gust 20 to 25 knots but otherwise conditions should below advisory levels this evening and overnight. Winds increase again toward daybreak Thursday, with gusts of Gale force expected for Thursday as NW winds gust 35 to 40 knots.

Outlook .

Thursday night and Friday . Northwesterly gales continue through this time. Additionally, freezing spray will be possible on all the waters.

Friday night through Saturday . Winds should gradually diminish, dropping below 25 kt by mid day Saturday. Freezing spray will also be possible through Saturday morning.

Sunday . Winds and seas should be below SCA criteria.

Sunday night and Monday . Winds will increase and shift from northerly to northeasterly. Gale gusts are possible on Monday.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Gale Warning from 7 AM Thursday to 6 PM EST Friday for ANZ430- 431-450>455.

Synopsis . Johnson Near Term . Fitzsimmons/Robertson Short Term . Johnson Long Term . Johnson Aviation . Fitzsimmons/Johnson/Robertson Marine . Fitzsimmons/Johnson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
DRSD1 - Delaware Reserve, DE 34 mi51 min NW 1 33°F 1021 hPa29°F

Wind History for Delaware City, DE
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wilmington, New Castle County Airport, DE9 mi30 minNNE 910.00 miOvercast34°F21°F59%1020.7 hPa

Link to 5 minute data for KILG

Wind History from ILG (wind in knots)
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Last 24hrN6NW4NW3CalmNW4W5W6W5NW7W5NW5W7NW8NW11NW16NW13NW14NW15
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1 day agoSE5Calm--E4SE3E3NE3E7E11E8NE4NE7NE6NE6NE8NE9NE10NE8NE7N5N5N4N5N6
2 days agoNW7NW5W3W4NW3N4CalmNE3NE5NE5NE4NE3NE4NE6NE4NE3CalmCalmCalmCalmNE3NE5NE4S4

Tide / Current Tables for Salem, Salem River, New Jersey
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Salem
Click for Map
Wed -- 05:03 AM EST     -0.16 feet Low Tide
Wed -- 06:37 AM EST     Moonset
Wed -- 07:13 AM EST     Sunrise
Wed -- 11:02 AM EST     4.25 feet High Tide
Wed -- 04:05 PM EST     Moonrise
Wed -- 05:16 PM EST     Sunset
Wed -- 05:54 PM EST     -0.16 feet Low Tide
Wed -- 11:32 PM EST     3.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.22.41.40.70.1-0.20.21.12.43.344.343.32.41.50.80.1-0.20.31.32.33.13.6

Tide / Current Tables for Chesapeake and Delaware Canal, Maryland/Delaware Current
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Chesapeake and Delaware Canal
Click for Map
Wed -- 01:54 AM EST     0.01 knots Slack
Wed -- 05:37 AM EST     1.85 knots Max Flood
Wed -- 06:38 AM EST     Moonset
Wed -- 07:14 AM EST     Sunrise
Wed -- 07:54 AM EST     -0.02 knots Slack
Wed -- 11:37 AM EST     -2.30 knots Max Ebb
Wed -- 03:29 PM EST     0.01 knots Slack
Wed -- 04:06 PM EST     Moonrise
Wed -- 05:17 PM EST     Sunset
Wed -- 06:31 PM EST     2.20 knots Max Flood
Wed -- 10:01 PM EST     -0.08 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.3-0.90.311.41.81.81.4-0.5-1.5-2-2.3-2.3-2-1.6-0.911.82.12.21.81.30.2-1.1

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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