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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
923 FXUS61 KALY 100655 AFDALY AREA FORECAST DISCUSSION National Weather Service Albany NY 155 AM EST Mon Nov 10 2025 .SYNOPSIS... A developing coastal low pressure system near southern New England this morning will bring additional showers with some snow showers over the higher terrain north and west of the Capital Region through the day. Blustery and cold conditions along with some snow showers and flurries will arrive Tuesday with below normal temperatures continuing through the mid week. Scattered rain and snow showers will persist Wednesday with weak disturbances before high pressure builds in late in the week. && .SHORT TERM /THROUGH WEDNESDAY NIGHT/... Key Messages: - High confidence for below normal temps into next weekend with lake effect snow across the western Adirondacks/western Mohawk Valley late Monday night into Tuesday. - Low to moderate confidence for wind gusts to potentially reach/exceed 40 mph across the eastern Mohawk Valley, Capital Region, eastern Catskills and Berkshires on Tuesday. As of 155 AM EST...A strong positively tilted mid and upper level trough is over the eastern CONUS this morning. Low pressure continues to develop near the the left front quadrant of a mid and upper level jet streak over the Upper Mid Atlantic States. The low pressure system over southern NY and southwest New England will slowly move north/northeast over New England this morning. Rain continues to move back in south and west of the Capital Region early this morning with patchy fog. Colder air is being drawn into the system from the northwest and west which will cause temps to fall near freezing over the southern Dacks before sunrise. The pcpn on the back edge of the cyclone will transition to a light wintry mix to snow over extreme northern Herkimer County by daybreak. The transition to snow showers should occur over the higher terrain north and west of the Capital District during the day, as the cyclone moves into Maine by the early evening. Snowfall amounts over the western Dacks may be in the half inch to inch range with coatings to a few tenths of an inch in the northern Catskills/Helderbergs and even the western Mohawk Valley. Little to no accums by nightfall over the western New England higher terrain. Temps will peak early in the late morning and then steady or fall in the early afternoon. Highs will be in the mid 40s to lower 50s from the Hudson River Valley and Lake George eastward with lower 30s to lower 40s to the west. Temps will fall in the upper 20s to upper 30s by nightfall over the region. Strong cold advection occurs in the wake of the cyclone and its occluded front. It will be brisk Mon night with developing lake enhanced snow showers and westerly upslope snow showers and flurries. Location west of the Hudson River Valley may get a dusting to couple tenths of an inch of snow with 1-2" in the western Dacks. The upslope areas of the southern Greens may get a coating to an inch. Lows fall back into the 20s with teens over the higher terrain, The H500 closed mid/upper low moves over upstate NY into New England on Tuesday. A strong sfc pressure gradient sets up between low pressure near the Gulf of St Lawrence and high pressure over the Southeast. Some mixing will allow for gusty west to northwest winds 10-20 mph with some gusts 25-35+ mph. The NBM 24-hr Max Wind Gusts (QMD) guidance is advertising 35-90% probabilities ending 06Z/WED of peak gusts exceeding 40 mph or greater in the eastern Catskills, Mohawk Valley, Capital District, northern Taconics and Berkshires. With abundant cloud cover in place, we are not super confident gusts over 40 mph will be achieved. Forecast has mainly 25-35 mph gusts using the NBM 75th percentile as a starting point. Lake effect and upslope snow showers continue with additional accums of a dusting to a few inches with any bands pivoting to the west to northwest trajectory. H850 temps will be a couple STDEVs below normal based on the latest NAEFS. A blustery and very cold day with scattered snow showers and flurries will occur with max temps close to 15 degrees below normal with highs in the mid 20s to lower 30s over the higher terrain and mid 30s to lower 40s in the valleys. Wind chills or "Feel-like" temps will be in the teens and 20s with some single digits over the higher terrain. The flow backs to the west/southwest late Tue night with some weak warm advection ahead of the next short-wave trough approaching from the Great Lakes Region. Total snowfall accums Tue-Tue night for Herkimer County are 2-4" north of the I-90 and 1-3" closer to it. Not high enough for an advisory yet. The 24-hr NBM probs for 4" or greater of snow ending 12Z/WED are only 25-40% for northern Herkimer Co. No headlines at this time for an advisory and will continue to monitor. The next short-wave trough approaches from the Great Lakes Region and southeast Ontario for WED. The mid level flow flattens some with weak warm advection ahead of the disturbance. Some isolated to scattered rain and showers will occur with more numerous coverage over the western Mohawk valley/western Dacks. Temps modify some...but still below normal with lower to upper 40s in the valleys and 30s to around 40F over the hills and mtns. Lake effect and upslope snowfall continues into Wed night. Additional snow accums Wed-Wed night for the western Dacks, southern Greens will range from 1-3". Lows in the upper 20s to mid 30s. && .LONG TERM /THURSDAY THROUGH SUNDAY/... Key Message: - Below normal temperatures are expected through most of the long term period. Discussion: Long term period begins at 12z Thursday with our region remaining in a cold-advection regime with low-level W/NW flow. This will lead to continued lake effect snow showers Thursday into Friday as a couple of shortwave disturbances embedded within the long-wave upper trough track over the Great Lakes. Most likely areas to see lake effect are the western ADKs and western Mohawk Valley, but can`t rule out some additional upslope snow showers in the southern Greens as well. Thursday looks breezy thanks to a relatively tight pressure gradient across the region, but winds friday should be weaker as the pressure gradient slackens. Highs Thursday and Friday will be in the 30s for the higher elevations to 40s for valley areas, with lows in the 20s to around 30 both nights. There will also be plenty of lake effect clouds around across the region Thursday and Friday. Next weekend...Lake effect snow showers should subside as upper ridging amplifies over the Great Lakes and a n area of high pressure builds over the region. So, Saturday looks mainly dry across the region with highs a couple degrees cooler than the previous couple days. Lows Saturday night will be in the 10s to 20s with the sfc high overhead. Confidence decreases for Sunday given the long lead time and expected convoluted upper flow pattern. To our east, an omega block will set up near/west of Greenland, while at the same time northern and southern stream disturbances will be tracking across the CONUS. If these disturbances remain separate then we could see increasing chances for valley rain and mountain rain/snow showers Sunday afternoon and night with the northern stream feature. However, if these two disturbances are slower and phase with each other, then any resulting precip would likely hold off until Sunday night or Monday. At this time, confidence is too low to say which of these scenarios will play out. Regardless, temperatures on Sunday are expected to remain below normal for mid November. && .AVIATION /06Z MONDAY THROUGH FRIDAY/... Through 06z Tuesday...As of 12:40 AM EDT, flying conditions range from LIFR at ALB/POU to MVFR at GFL/PSF. Over the next 1-2 hrs, will see another batch of rain moving from south to north across the region, with predominant MVFR vsbys and IFR cigs. Rain ends between 11-13z. Some improvement back to MVFR possible once rain ends, especially at ALB/GFL, but low confidence on how quickly this occurs. By late morning/early afternoon, another batch of showers will track through the region. For ALB/GFL, mainly VFR vsbys and MVFR cigs, with some pockets of MVFR vsbys/IFR cigs possible within showers. For POU/PSF, expecting more coverage of showers, and prevailing IFR cigs with MVFR vsbys. Showers come to and end during the afternoon/evening, and some wet snow may mix in at GFL/PSF for a couple hours before precip ends. Once precip ends, expecting improvement back to mainly VFR conditions. Winds will be from the N/NW tonight into this morning at around 5 kt or less, then become more W/NW from mid-morning through late afternoon at 5-10 kt. W/NW winds increase to around 10 kt (10-15 kt at ALB/PSF) with gusts of 15-25 kt behind a cold frontal passage late this afternoon/early evening. Gusts diminish at GFL/POU after 00-01z this evening, but remain gusty at ALB/PSF through the end of the TAF period. Outlook... Tuesday Night: Low Operational Impact. Breezy. Slight Chance of SHSN. Wednesday: Moderate Operational Impact. Chance of SHRA...SHSN. Wednesday Night: Moderate Operational Impact. Chance of SHRA. Thursday: Moderate Operational Impact. Breezy. Chance of SHRA. Thursday Night: Low Operational Impact. Slight Chance of SHRA. Friday: Low Operational Impact. Slight Chance of SHRA...SHSN. && .ALY WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. MA...None. VT...None. && $$ SYNOPSIS...15 SHORT TERM...15 LONG TERM...35 AVIATION...35