Thursday, April22, 2021
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Marine Weather and Tides
Holley, NY

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 6:17AMSunset 8:04PM Thursday April 22, 2021 11:02 PM EDT (03:02 UTC) Moonrise 1:38PMMoonset 3:22AM Illumination 85% Phase: Waxing Gibbous; Moon at 11 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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LOZ042 Niagara River To Hamlin Beach Along Lake Ontario- 917 Pm Edt Thu Apr 22 2021
.small craft advisory in effect until 2 am edt Friday...
Tonight..West winds 20 to 25 knots diminishing to 10 to 15 knots. Mainly clear. Waves 3 to 5 feet subsiding to 1 to 3 feet. Waves occasionally around 6 feet.
Friday..West winds 10 to 15 knots becoming southwest 15 to 20 knots. Sunny. Waves 1 to 3 feet.
Friday night..Southwest winds 15 to 20 knots diminishing to 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet.
Saturday..Southwest winds 10 knots or less becoming east. Partly to mostly Sunny. Waves 2 feet or less.
Saturday night..East winds 10 knots or less becoming southwest. Rain likely. Waves 1 foot or less.
Sunday..West winds 10 to 15 knots. Rain likely. Waves 2 to 4 feet.
Monday..Northwest winds 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet subsiding to 2 feet or less.
Tuesday..Southeast winds 5 to 10 knots. Mostly cloudy. Waves 1 foot or less.
LOZ042 Expires:202104230915;;970734 FZUS51 KBUF 230117 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 917 PM EDT Thu Apr 22 2021 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LOZ042-230915-


7 Day Forecast for Marine Location Near Holley, NY
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location: 43.22, -78.04     debug


Area Discussion for - Buffalo, NY
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FXUS61 KBUF 230133 AFDBUF

Area Forecast Discussion National Weather Service Buffalo NY 933 PM EDT Thu Apr 22 2021

SYNOPSIS. Skies will clear out such that clear skies will be likely for much of tonight. Moderating temperatures will then prevail through Saturday before the next rain maker advances into the region Saturday night. Dramatically warmer conditions are on tap for next week.

NEAR TERM /THROUGH FRIDAY/. A stabilizing and drying airmass will promote clearing skies tonight with any leftover snow showers ending early.

Warm advection really gets its act in gear on Friday as 850 hPa temperatures vault from roughly -6C today to +2C tomorrow. This will result in the abundant insolation in a rather dry column allowing for a return of most areas back almost to normal for high temperatures.

SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY NIGHT/. Dry conditions continue Friday night into Saturday. Temperatures will trend warmer going into the weekend with lows Friday night in the upper 30s to low 40s. Mid-high level moisture will increase early Saturday as a trough across the Mid-West approaches the region. While clouds increase through the day, rain will hold off until Saturday afternoon across the southwest. Highs will reach the upper 50s to near 60.

Two systems, one across the Great lakes and another across the Mid- Atlantic region, will force moisture into the eastern Great Lakes Saturday night. While there remains spread in speed of the northern stream system, it looks likely that warm air advection and isentropic upglide will produce widespread light rain across the region Saturday night into Sunday. The Canadian remains an outlier and keeps the two systems separate which will greatly reduce rainfall amounts. Best chance for rain is across the Southern Tier, closer to the strong southern stream system that will be moving off the Mid-Atlantic coast into Sunday. Winds will be fairly light as these system pass nearby however northwest winds will increase Sunday which will keep conditions cool with temperatures in the low to mid 50s.

Moisture will depart to the east Sunday night while northwest flow continues. Chilly conditions Sunday night with lows in the low to mid 30s and upper 20s across the higher terrain.

LONG TERM /MONDAY THROUGH THURSDAY/. . Big warm up expected during this period .

High pressure centered over the eastern Great Lakes on Monday morning will shift southeast to the Mid-Atlantic Coast by Tuesday morning, and slowly track out to sea through the week. As this area of high pressure tracks southeast to the coast the weather will turn dry after a damp weekend.

Temperatures will also warm as the area of high pressure tracks southeast, as northwest winds shift to the southwest, warm air advection will increase markedly. As result, temperatures across much of the area will increase by 15 to 20 degrees from Monday to Tuesday. Daytime highs on Tuesday are expected to be in the low to mid 70s south of Lake Ontario, and in the mid to upper 60s for the North Country. A warm front out ahead of an approaching area of low pressure will push through the area early Wednesday, providing another push of warm air advection. Temperatures on Wednesday are expected to be in the low to mid 80s for most areas, with a few mid 70s expected for the higher terrain of the North Country.

The potential for showers will increase for Wednesday into Thursday as the complex area of low pressure and associated frontal boundaries approaches the region. Thursday will be above normal again, but timing of a potential cold frontal passage will determine how warm max temps get ahead of the frontal passage. Timing of which is still in disagreement with guidance.

AVIATION /02Z FRIDAY THROUGH TUESDAY/. West-northwest gusty flow will slowly diminish overnight as diurnally-driven snow shower activity likewise diminishes. Generally VFR conditions will prevail for the remainder of the TAF period thereafter.

Outlook .

Friday and Saturday . Mainly VFR. Saturday night and Sunday . MVFR with showers likely. Monday and Tuesday . Mainly VFR.

MARINE. Sustained winds just short of gale conditions will persist on Lake Ontario into the evening before diminishing as cyclonic flow around a departing low pressure system will maintain gusty conditions. This will allow for small craft advisories for all nearshore zones to continue into the night.

BUF WATCHES/WARNINGS/ADVISORIES. NY . None. MARINE . Small Craft Advisory until 2 AM EDT Friday for LEZ040-041. Small Craft Advisory until 8 AM EDT Friday for LOZ043>045. Small Craft Advisory until 2 AM EDT Friday for LOZ042.



SYNOPSIS . Fries NEAR TERM . Fries/RSH SHORT TERM . HSK/JLA LONG TERM . SW AVIATION . Fries MARINE . Fries


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCRN6 - 9052058 - Rochester, NY 22 mi44 min 37°F
RPRN6 - Rochester, NY 24 mi62 min W 9.9 G 15 38°F 1015.6 hPa (+2.1)
OLCN6 - Olcott Harbor, NY 37 mi62 min WNW 18 G 22 40°F 1016.3 hPa (+1.7)

Wind History for Buffalo, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rochester, Greater Rochester International Airport, NY21 mi68 minW 910.00 miFair35°F22°F59%1015.6 hPa

Link to 5 minute data for KROC

Wind History from ROC (wind in knots)
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1 day agoNE5N6N10NE9NE8N8N7N8N7N6N8NW9NW9N10N11N12NW13
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2 days agoW13
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W17W13NW8N7N8N6N6

Tide / Current Tables for
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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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