


Area Forecast Discussion
Issued by NWS Albany, NY
Issued by NWS Albany, NY
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074 FXUS61 KALY 071940 AFDALY AREA FORECAST DISCUSSION National Weather Service Albany NY 340 PM EDT Mon Apr 7 2025 .SYNOPSIS... A strong cold front will pass through the region overnight with a line of snow showers. Behind the front, windy and colder weather is expected on Tuesday with some additional snow showers and flurries. Temperatures will remain below normal for the middle of the week before another storm system returns the threat for widespread rain towards the end of the week. && .NEAR TERM /UNTIL 6 AM TUESDAY MORNING/... Key Message: -Strong cold front passing through the region overnight will bring gusty snow showers and much colder temperatures Discussion: As of 340 PM EDT...A slow moving frontal boundary extends off the mid Atlantic coast and offshore into the western Atlantic Ocean. This front, along with waves of low pressure moving along the boundary, have been allowing for widespread clouds through the day, as well as some periods of light precip (mainly rain, with some wet snow mixed in at times). With this front nearby, plenty of lower clouds have been streaming across the area from southwest through the day, keeping cloudy conditions in place. Temps have only been in the 30s to low 40s for today with cloudy conditions and occasional light precip. Upstream of the region, another frontal boundary is moving across the Great Lakes and heading towards the area for tonight. There are some brief breaks in the clouds between the two systems, so there will likely be a few hours later this evening where it briefly clear outs a little bit, especially for northwestern areas. The strong northern stream frontal boundary will be moving west to east across the region for late tonight (after midnight). A broken line of snow showers (perhaps mixed with rain showers for some valley areas) will accompany the front as it moves across the area. With this being the late night hours, there doesn`t appear to be any instability ahead of the boundary (at least according to the 12z HREF or NAM), but the forcing is rather strong, so would anticipate a linear line of precip just ahead of the front. With the expectation for a brief burst of precip and gusty winds, visibility may briefly be reduced this late night precip. Surface temps are likely holding into the 30s ahead of the front, but look to drop below freezing behind the boundary, although many ground temps may still be above freezing. Considering all this, while widespread impactful snow squalls are not anticipated due to the early morning hour, there could be some locally slick conditions and hazardous travel between 2 AM and 6 AM across the region as this front moves across the area from west to east. Snow accumulation will mainly be just a coating to an inch, generally on grassy and non-paved surfaces. Behind the front, westerly winds will be increasing and start to become rather gusty. Temps will be falling into the 20s to low 30s by daybreak Tuesday. && .SHORT TERM /6 AM TUESDAY MORNING THROUGH WEDNESDAY NIGHT/... Key Messages: -Wind Advisory in effect for Mohawk & Schoharie Valleys, Helderbergs, Capital Region, Taconics and Berkshires due to expected wind gusts up to 50 mph on Tuesday. -Below normal temperatures expected Tuesday into Wednesday Discussion: Behind the strong cold front, windy and cold conditions are expected through the day on Tuesday. Good mixing and a strong pressure gradient in place will allow for winds to gust 30 to 50 mph across the region, especially for the mid morning through early evening hours. The strongest gusts will be channeled through the Mohawk Valley and Capital Region towards the Berkshires, where a Wind Advisory has been issued. In addition, temps won`t be rising much, due to the strong cold advection in place. Most places will be holding steady through the day in the 20s to mid 30s, making it feel not much like April at all, especially considering the gusty winds. Some additional snow showers and flurries are expected through the day due to the cyclonic flow around the upper level trough. Some lake enhancement and upslope flow will help squeeze out some additional snow showers over the western Adirondacks, where a few inches may accumulate. Elsewhere, just a coating is expected due to the passing light snow showers and flurries, especially for areas west of the Capital Region. Skies will remain partly to mostly cloudy, with the most breaks in valley areas across southern parts of the region. The threat for snow showers and flurries should start to diminish through Tuesday night, along with the winds starting to calm down. Some clearing will occur, although lake enhanced clouds will still continue for the Catskills and Schoharie County. Lows will fall into the teens and 20s. It will be fairly dry for Wednesday into Wednesday night, but temps will remain below normal. Highs only in the 30s and 40s on Wednesday, but will fall into the 20s on Wednesday night. Skies will be partly to mostly sunny on Wednesday and some clouds will start to increase for Wednesday night. && .LONG TERM /THURSDAY THROUGH MONDAY/... Key Message: -Unsettled weather late in the week for Friday into the weekend. NBM probabilities for greater than 0.50" rainfall are above 50 percent for the entire forecast area. Discussion: The next storm system will be approaching for the late week into the first part of the weekend. This system will be approaching from the Great Lakes and Ohio Valley for later Thursday into Friday and may be closing over the region. A prolonged period of rain is expected for the late week. There could be some mixing with snow at the highest terrain, but most areas will only be seeing plain rain with this system as temps rise closer to seasonable levels. There looks to be a steady round of precip late Thursday into Friday and then again later Friday into early Saturday. Total QPF looks to exceed a half inch (high probability of at least 0.50" across much of the area with NBM values over 50 percent). There is some potential for total rainfall to exceed an inch, with NBM probabilities around 30 percent for southern areas. This could lead to some hydro issues depending on where the heaviest precip occurs. Drier weather looks to return for later in the weekend into early next week. && .AVIATION /19Z MONDAY THROUGH SATURDAY/... Through 18z Tuesday...Flying conditions vary across all terminals this afternoon with VFR to IFR conditions observed due to light mist and low ceiling heights. Though there remains some scattered showers around, very little is reaching the ground, so this poses little impact. Low ceiling heights will dominate the 18z Forecast period ahead of an incoming cold front. Additional batches of snow showers or a mix of rain and snow is expected tonight as a result, maintaining primarily MVFR to IFR conditions overnight through tomorrow morning. Though there is some uncertainty with the timing and duration of precipitation, the greatest likelihood of the more widespread and longer duration ranges between 06-11z tomorrow morning at KGFL/KALB/KPSF. KPOU should remain outside the risk zone for precipitation during this time, but additional showers could impact this terminal late this afternoon into this evening between 21-23z. Winds throughout the 18z TAF period will begin out of the southeast before backing to the northwest by period end at sustained speeds falling below 10 kt for the most part. However, tomorrow could become breezy especially at KALB/KPOU/KPSF with sustained speeds ranging from 15-20 kt and gusts of 20-35kt. Outlook... Tuesday Night: Moderate Operational Impact. Windy With Gusts To 33 kts. Slight Chance of SHSN. Wednesday: No Operational Impact. NO SIG WX. Wednesday Night: No Operational Impact. NO SIG WX. Thursday: Moderate Operational Impact. Likely SHRA. Thursday Night: Moderate Operational Impact. Likely SHRA. Friday: High Operational Impact. Likely SHRA. Friday Night: High Operational Impact. Likely SHRA. Saturday: Moderate Operational Impact. Likely SHRA. && .ALY WATCHES/WARNINGS/ADVISORIES... CT...None. NY...Wind Advisory from 8 AM to 10 PM EDT Tuesday for NYZ038>040- 047>054-061. MA...Wind Advisory from 8 AM to 10 PM EDT Tuesday for MAZ001-025. VT...None. && $$ SYNOPSIS...Frugis NEAR TERM...Frugis SHORT TERM...Frugis LONG TERM...Frugis AVIATION...Gant