Area Forecast Discussion
Issued by NWS Albany, NY

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000 FXUS61 KALY 211418 AFDALY AREA FORECAST DISCUSSION National Weather Service Albany NY 1018 AM EDT Sun Apr 21 2024 .SYNOPSIS... Cool, dry and breezy conditions are expected today with a mix of sun and clouds this afternoon. After a chilly night, another cool, breezy and dry day is expected for Monday with a mostly sunny sky. It will slightly milder on Tuesday with increasing clouds, before a cold front returns some rain to the region for Tuesday night into Wednesday, with colder weather returning for the rest of the week. && .NEAR TERM /UNTIL 6 PM THIS EVENING/...
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Clouds have spread over the region and based on area 12Z soundings and upstream conditions, clouds will persist through most of the day. Some isolated showers in western areas as an upper cold pool supports the development of the isolated showers. Just minor adjustments to temperatures, sky cover and chances for isolated showers. PREVIOUS DISCUSSION: A broad upper level trough is situated over the Great Lakes and Northeast. At the surface, high pressure is located southwest of the area over the eastern Ohio Valley and northern mid Atlantic States. By the afternoon hours, the trough axis for the broad positively tilted trough aloft will be passing across the region. Some CAMs show a few weak showers or sprinkles trying to develop, but won`t mention any POPs, as the dry low levels will probably cause this to just be virga, as large scale moisture is lacking today. Otherwise, skies will be partly to mostly cloudy, as the cool temps aloft will promote the development of some additional cu/stratocu. In addition, daytime mixing will promote some gusty winds for this afternoon, with westerly winds gusting up to 25 mph at times. Temps today will be a little below normal. Valley areas will only reach the mid to upper 50s, with 40s for the high terrain. With the gusty breeze and partial cloud cover in place, it won`t feel quite like the nicest late April day, although it certainly could be a lot worse.
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&& .SHORT TERM /6 PM THIS EVENING THROUGH TUESDAY NIGHT/... With the trough axis pushing eastward and surface high pressure building into the area, clouds will decrease this evening and winds will diminish as well. This should allow for a mostly clear and chilly night for tonight, with lows in the 30s (some 20s across the high terrain). Another cool day is expected for Monday, as temps aloft still remain fairly chilly. Highs will once again be mainly in the 50s for valley areas, with 40s again for the high terrain. However, the difference from Sunday will be that high pressure overhead will allow for more sunshine and lighter winds as well. Surface dewpoints look a little lower on Monday as well thanks to the dry low levels expected to be in place. Monday night will be continued dry and chilly, as high pressure continues to slowly slide eastward and push offshore for Tuesday. Lows will once again be in the 20s and 30s on Monday night with a mostly clear sky. After a sunny start on Tuesday, sky cover will be increasing through the day as the next system starts to approach from the west. Winds will switch to the south and will begin to pick up by late in the day, as the pressure gradient starts to increase. Some light rain will be spreading towards the area from the west on Tuesday night. It may take until the late night hours for the rain to reach the Hudson Valley and points eastward. Otherwise, it will become cloudy and remain breezy through the overnight with lows in the 40s. Any rainfall looks fairly light. && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... An upper-level trough and surface low pressure system will continue to cross the region on Wednesday. The overall upper-level and surface pattern with this system is becoming more clear in recent runs. The cold front passage looks to occur during the morning and early afternoon hours and will bring a period of rainfall to the region. Precipitation should begin to taper off during the afternoon and evening hours as the upper trough looks to be more progressive and quickly depart to the east. A push of cold air will dive in right behind the cold front and could result in precipitation mixing with or ending as a brief period of snow, mainly across the higher terrain, before ending. Most areas will not see any snow accumulation but localized areas could pick up a very light coating. High pressure will then bring the return of dry weather for the rest of the week and into the start of next weekend. Chances for showers return by late Saturday or Sunday with the approach of a warm front. Highs on Wednesday and Thursday will be in the 40s and 50s with lows Wednesday and Thursday night in the 20s and 30s. Highs rebound to the 50s to lower 60s Friday and Saturday with lows Friday night in the 30s. && .AVIATION /14Z SUNDAY THROUGH THURSDAY/... Through 12z/Mon...VFR conditions are expected through the upcoming TAF period. High pressure will be over our region today with a dry cold front crossing the sites tonight. A clear/mostly clear sky early this morning will give way to some fair weather cumulus above 5 kft and some high cirrus by this afternoon. A return to a mostly clear sky is expected tonight. No precipitation is expected through the period. A light and variable wind early this morning will increase to 10-15 kt this afternoon with some gusts to around 20 kt. Wind will decrease to 10 kt or less tonight. Outlook... Monday Night: No Operational Impact. NO SIG WX. Tuesday: Low Operational Impact. Breezy. NO SIG WX. Tuesday Night: Moderate Operational Impact. Breezy. Chance of SHRA. Wednesday: High Operational Impact. Breezy. Likely SHRA. Wednesday Night: Low Operational Impact. Breezy. Slight Chance of SHRA. Thursday: Low Operational Impact. Breezy. NO SIG WX. Thursday Night: No Operational Impact. NO SIG WX. Friday: No Operational Impact. NO SIG WX. && .FIRE WEATHER... Dry and breezy weather will be in place across the region for today through Tuesday. While temperatures will be on the cool side for today and tomorrow, valley areas should be back into the 60s by Tuesday. There will be some cloud cover around for today, although Monday looks fairly sunny. After a sunny morning on Tuesday, some clouds will increase by later in the day. RH values may be as low as 35 percent during the afternoon hours today, although there should be a recovery during the overnight hours. On Monday, RH values could be as low as 25 to 30 percent during the afternoon hours. RH values will again drop on Tuesday into the 35 to 45 percent range during peak heating. Winds will be westerly on today and Monday with some gusts up to 25 mph in the afternoon hours today and up to 20 mph on Monday. Southerly winds on Tuesday could gust as high as 30 mph late in the day. && .ALY WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. MA...None. VT...None. && $$ SYNOPSIS...Frugis NEAR TERM...Frugis/NAS SHORT TERM...Frugis LONG TERM...Rathbun AVIATION...Rathbun FIRE WEATHER...Frugis

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