


Area Forecast Discussion
Issued by NWS Albany, NY
Issued by NWS Albany, NY
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
955 FXUS61 KALY 250514 AFDALY AREA FORECAST DISCUSSION National Weather Service Albany NY 114 AM EDT Mon Aug 25 2025 .SYNOPSIS... A cold front will work its way across the region today, and will be accompanied by scattered showers and thunderstorms. This front will bring cooler temperatures this week, along with a low chance of rain showers at higher terrain and in lake effect zones through Wednesday. && .DISCUSSION... Key Messages: - Showers and thunderstorms with lightning and locally heavy downpours with a cold front passage through this afternoon. - Dry conditions favored for most with below normal temperatures for much of the upcoming week. - Low chance of rain showers (20-50%) of rain showers across high terrain and lake effect regions tonight through Wednesday. 06z surface observations and analysis showed a weak area of low pressure just west of Montreal, with a cold front extending south across central New York and central Pennsylvania. KBGM/KTYX/KENX all showed a line of showers and storms along and ahead of the front across the North Country, Mohawk Valley and Southern Tier, which has been slowly working its way east since yesterday afternoon. For today, the cold front remains on track to sweep through eastern New York and western New England, and will remain accompanied by scattered showers and storms, though storm coverage will wane through the morning. This activity will exit the region to the east by early afternoon with the front, with sunshine on the increase with dry air increasing aloft. Additional isolated rain showers will be possible this afternoon mainly in the Mohawk Valley, western ADKs and Catskills with CVA aloft ahead of the trough, but these will diminish by this evening with the sunset. Winds will shift from south to west, and will promote temperatures cooling beginning this afternoon. Before that, most areas should see highs climb into 70s to low 80s outside of high terrain. Lows Monday night will drop into the 40s (terrain) to low 50s (valleys). Heading into midweek, much of eastern NY and western New England will see dry conditions with a mix of sun and clouds each day as surface high pressure builds over the Mid Atlantic. Cold air aloft combined with cyclonic flow and the warm upstream Great Lakes will promote isolated to scattered rain showers (20-40%) across the Mohawk Valley and western ADKs, with some showers extending as far south/east as the Catskills, Capital Region and southern Greens/northern Berkshires, especially Tuesday through early Wednesday. Temperatures Tuesday through Thursday will average below normal for late August, with highs each day ranging from the upper 50s/low 60s (terrain) to the low/mid 70s (valleys). Overnight lows will range from the upper 30s/low 40s (terrain) to near 50 (valleys). (Normal highs this time of year are in the upper 70s/low 80s with lows in the 50s/60s) Our next chance of precipitation comes late in the period from Thursday night into Friday as guidance brings another cold front and trough aloft across the area. Chances remain highest along and north of Interstate 90 (20-50%) with this iteration of guidance, but will need to watch this period as some deterministic models do linger precipitation chances into the upcoming weekend. Below normal temperatures remain favored going into the weekend, with daily highs in the 60s/70s and overnight lows in the 40s/50s. && .AVIATION /06Z MONDAY THROUGH FRIDAY/... A slow moving frontal boundary is approaching from the west. Radar imagery shows a band of showers and embedded thunderstorms west of the TAF sites early this morning. Although this band of showers will be weakening, some impacts are expected at some of the terminals over the next few hours. A brief period of MVFR conditions can be expected at KGFL and KALB due to showers between 07z-11z for both visibility and ceilings. Based on radar trends and the limited instability in place, the threat for thunder will be diminishing, so won`t include any thunder in the TAFs this time. KPSF and KPOU should see less impacts from showers, but a brief passing shower can`t be ruled out between 08z-12z for these sites. While it should stay VFR at KPOU, the upslope flow and brief showers could allow for some MVFR ceilings at KPSF right around sunrise. This could linger for an hour or two, but all sites should be back to VFR by the mid morning hours. South to southwest winds will be light for the rest of the overnight and will be around 5 kts on Monday morning. As the front starts working eastward, skies will be gradually clearing through the day, with just sct clouds around by the afternoon hours. As the front crosses, winds will become westerly around 10 kts for all sites. Winds will decrease somewhat for Monday evening into Monday night and it will continue to stay VFR with no precip. Skies will be clearing out with just few lingering mid level clouds around for Monday night. Outlook... Tuesday Night: No Operational Impact. NO SIG WX. Wednesday: No Operational Impact. NO SIG WX. Wednesday Night: No Operational Impact. NO SIG WX. Thursday: No Operational Impact. NO SIG WX. Thursday Night: Moderate Operational Impact. Chance of SHRA. Friday: Moderate Operational Impact. Chance of SHRA...TSRA. Friday Night: No Operational Impact. NO SIG WX. Saturday: Low Operational Impact. Slight Chance of SHRA...TSRA. && .ALY WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. MA...None. VT...None. && $$ SYNOPSIS...Speck DISCUSSION...Speck AVIATION...Frugis