Thursday, April22, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Mount Hermon, 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 6:06AMSunset 7:47PM Thursday April 22, 2021 8:01 AM EDT (12:01 UTC) Moonrise 1:30PMMoonset 3:04AM Illumination 80% Phase: Waxing Gibbous; Moon at 10 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
    EDIT      (on/off)   Help
ANZ338 NEw York Harbor- 552 Am Edt Thu Apr 22 2021
.gale warning in effect through this evening...
Today..W winds 15 to 20 kt with gusts up to 35 kt. Waves 2 to 3 ft.
Tonight..W winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 35 kt early. Waves 2 to 3 ft in the evening, then 1 ft or less.
Fri..W winds 10 to 15 kt with gusts up to 25 kt. Waves 1 to 2 ft.
Fri night..W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves 1 ft or less.
Sat..W winds 5 to 10 kt, becoming S in the afternoon. Waves 1 ft or less.
Sat night..S winds around 10 kt, becoming se with gusts up to 20 kt after midnight. Waves 1 to 2 ft. Rain. Vsby 1 to 3 nm after midnight.
Sun..N winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. Rain.
Sun night..NW winds around 15 kt with gusts up to 25 kt. Waves 2 to 3 ft.
Mon..NW winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft.
Mon night..NW winds 5 to 10 kt. Waves 1 to 2 ft.
ANZ300 552 Am Edt Thu Apr 22 2021
Synopsis for the long island waters and new york harbor.. Deepening low pressure over the canadian maritimes will slowly lift north and east today, becoming nearly stationary tonight, then slowly weakening and resuming its trek northward on Friday. At the same time, high pressure builds to the south and west, passing offshore on Saturday. Low pressure approaches from the southwest late Saturday and passes to the south and east on Sunday. High pressure builds in Sunday night and Monday.


7 Day Forecast for Marine Location Near Mount Hermon, NJ
   Hourly   EDIT   Help
location: 40.94, -75     debug


Area Discussion for - Philadelphia/Mount Holly, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KPHI 221042 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 642 AM EDT Thu Apr 22 2021

SYNOPSIS. Low pressure will slowly drift across eastern Canada through the rest of the week. High pressure will build across the deep south today, then offshore of the southeast coast on Friday. A couple of weak surface troughs will cross the area through Friday as well. An area of low pressure will impact the area Saturday night through Sunday, then move into the Canadian Maritimes Monday. High pressure briefly affects the Mid Atlantic late Monday into Tuesday, before shifting offshore by Wednesday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. No significant changes with the morning update. Earlier flurries appear to be decreasing in coverage, and expect this trend to continue for the next few hours.

Our region will spend today and tonight sandwiched between the departing closed low (responsible for the cold front yesterday) and the surface high building towards the southeastern U S. Leaving our region with a relatively tight pressure gradient today and tonight. Consequently, cold air advection will continue through this period. Thus, the main concern remains freeze this morning and again tonight.

Despite model soundings depicting a very deep mixing layer today (mixing up to 700 mb), winds aloft should be decreasing (as compared to yesterday), so agree with the previous shift that the potential for wind advisory conditions (gusts at or above 40 kt/46 mph) is very low. Nevertheless, still anticipating rather breezy conditions with west to northwesterly winds of 15-25 mph with gusts up to 35-40 mph.

Thanks to the cold air advection, highs will be 15 to 20 degrees below normal, and about 20 to 25 degrees lower than the pre-cold front highs from Wednesday. Highs should be mostly in the 40s and 50s, though the higher elevations of the southern Poconos and NW NJ may not get out of the 30s.

I'm increasingly concerned about another round of freezing conditions tonight, even into the Pine Barrens. However, much like this morning, expect winds to stay elevated enough to limit frost development. For now will hold off on issuing any additional freeze warnings until the current one expires.

SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/. Another dry and breezy day are expected on Friday, although it is not expected to be as windy as Thursday. Low pressure continues to slowly drift across eastern Canada, while high pressure builds offshore of the southeast coast. This keeps a steady flow across the area, and with good mixing, gusty winds are expected during the day of at least 20-25 mph. A weak surface trough is expected to move across the area during the day, but will only bring additional cloud cover through the day. Quiet conditions are expected to continue into Friday night.

LONG TERM /SATURDAY THROUGH WEDNESDAY/. The beginning of the long term is expected to be the most active of the extended period. An area of low pressure will be moving across the Tennessee River Valley on Saturday, before making its way across the Mid-Atlantic region Saturday night into Sunday. Meanwhile, another low pressure moving across the Deep South and offshore of the southeast coast is forecast to merge with the first low as the lift toward the Mid Atlantic region Saturday night into Sunday. As the two lows merge, enhanced lift will move across the area as multiple short waves/vorticity impulses pass overtop. This lift, combined with enhanced moisture is expected to lead to an extended period of rainfall. Rainfall amounts are generally in the 0.50-0.75 inches according to much of he forecast guidance, which will likely fall over a several hour time period, so no widespread flood issues are expected.

The rest of the long term period is expected to be dry, although Monday will be quite breezy as the low pressure drifts northward, and high pressure builds in from the west. The high pressure briefly builds across the Mid Atlantic Tuesday, before shifting offshore Tuesday into Tuesday night.

Guidance is indicating a warm front lifting across the area around Wednesday, but this warm frontal passage is expected to be dry.

AVIATION /12Z THURSDAY THROUGH MONDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Today . VFR conditions expected with a scattered to broken mid level cloud deck (around 5000 ft AGL). Northwesterly wind 15 to 20 knots with gusts of 25 to 30 knots. High confidence.

Tonight . VFR conditions expected with decreasing clouds. Northwesterly or westerly winds around 10 kt. High confidence.

Outlook .

Friday-Friday night . VFR conditions expected. West winds 10-15 knots, gusts 20-25 knots, becoming light and variable overnight. High confidence.

Saturday . VFR conditions as rain approaches the area from the south. South winds 5-10 knots, with gusts 15-20 knots. High confidence.

Saturday night-Sunday . Conditions lower to MVFR or IFR as rainfall spreads across the area from south to north. Winds will be variable from site to site, depending on the track of a surface low. On Sunday however, winds will become gusty out of the northwest with gusts 20- 30 knots. Moderate confidence.

Sunday night-Monday . VFR conditions expected. Gusty northwest winds 15-25 knots. Moderate confidence.

MARINE. The Gale Warning remains in effect through early this evening for all waters. Wind speeds are in a bit of a lull currently, but winds should increase later this morning as stronger winds mix down. Northwesterly winds gusting around 35 kts are expected from late morning through most, if not all of the afternoon. Seas 4-6 feet across the ocean waters. Winds should diminish this evening, though SCA conditions are likely to continue through most if not all of Thursday night.

OUTLOOK .

Friday . Small Craft Advisory conditions likely.

Friday night-Saturday . Conditions fall back below advisory levels Friday night and continue through Saturday.

Saturday night-Sunday . Conditions likely to increase to advisory levels as an area of low pressure passes near the area.

Sunday night-Monday . Advisory levels winds likely remain as low pressure remains to our north and high pressure builds to our west.

FIRE WEATHER. Windy and dry conditions are expected today across the area. Most areas received less than one half inch of rain yesterday, so fuels in many areas may be dry. We will be coordinating with state fire partners later this morning to ascertain the current state of fuels. Winds are forecast to gust to 30+ mph and minimum relative humidity values are forecast to be between 20 and 30 percent. Another dry day is forecast on Friday as RH values could drop into the low 20, while winds could gust 25-30 knots at time.

PHI WATCHES/WARNINGS/ADVISORIES. PA . Freeze Warning until 9 AM EDT this morning for PAZ060>062- 101>103-105. NJ . Freeze Warning until 9 AM EDT this morning for NJZ001-007>010. DE . None. MD . None. MARINE . Gale Warning until 8 PM EDT this evening for ANZ430-431- 450>455.

Synopsis . Robertson Near Term . Johnson Short Term . Robertson Long Term . Robertson Aviation . Johnson/Robertson Marine . Johnson/Robertson Fire Weather . WFO PHI


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MHRN6 49 mi43 min WNW 21 G 29
BGNN4 - 8519483 - Bergen Point West Reach, NJ 50 mi43 min 51°F1010.7 hPa
ROBN4 - 8530973 - Robins Reef, NJ 53 mi43 min WNW 24 G 35 36°F 1010.5 hPa
BATN6 - 8518750 - The Battery, NY 55 mi43 min 37°F 50°F1011 hPa

Wind History for Bergen Point West Reach, NY
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Andover, Aeroflex-Andover Airport, NJ15 mi67 minN 0 mi32°F12°F43%1010.8 hPa
Mount Pocono, Pocono Mountains Municipal Airport, PA24 mi68 minW 16 G 2610.00 miFair25°F12°F58%1009.6 hPa

Link to 5 minute data for K12N

Wind History from 12N (wind in knots)
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last 24hr3CalmSW6SW8SW5--CalmN13
G22
NW8
G17
N12
G19
NW9
G22
N86
G16
NW10
G17
N7
G17
6
G17
N9
G16
--W34SW343Calm
1 day agoCalm4SW7SW9SW8S7
G16
S8
G17
SW9
G16
SW10
G18
SW7
G15
SW11
G16
5
G15
S454SW3CalmN5NE6CalmNE5NE633
2 days agoCalmCalmCalmCalmCalm6466S56CalmCalmCalmCalmS3CalmCalmCalmSW3CalmCalmCalmS3

Tide / Current Tables for New Brunswick, New Jersey
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
New Brunswick
Click for Map
Thu -- 04:00 AM EDT     Moonset
Thu -- 04:31 AM EDT     5.65 feet High Tide
Thu -- 06:08 AM EDT     Sunrise
Thu -- 11:45 AM EDT     0.63 feet Low Tide
Thu -- 02:28 PM EDT     Moonrise
Thu -- 05:26 PM EDT     5.42 feet High Tide
Thu -- 07:44 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.62.7455.65.65.14.23.12.21.40.80.71.32.53.84.85.45.34.73.72.71.81.1

Tide / Current Tables for Belleville, Passaic River, New Jersey
   EDIT      (on/off)   Help   One Week of Data
Belleville
Click for Map
Thu -- 03:59 AM EDT     Moonset
Thu -- 04:25 AM EDT     5.55 feet High Tide
Thu -- 06:06 AM EDT     Sunrise
Thu -- 12:10 PM EDT     0.61 feet Low Tide
Thu -- 02:26 PM EDT     Moonrise
Thu -- 05:24 PM EDT     5.28 feet High Tide
Thu -- 07:43 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.42.33.74.95.55.554.33.32.51.81.10.612.23.74.85.25.24.73.92.92.11.4

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.