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Winter Weather Advisory URGENT - WINTER WEATHER MESSAGE National Weather Service Pittsburgh PA 109 AM EST Mon Dec 1 2025 OHZ039>041-048>050-057>059-068-069-PAZ007>009-013>016-020>022-029- 031-073-075-077-078-WVZ001>004-012-021-509-011700- /O.NEW.KPBZ.WW.Y.0022.251202T0500Z-251202T1800Z/ Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Venango-Forest- Lawrence-Butler-Clarion-Jefferson PA-Beaver-Allegheny-Armstrong- Washington-Greene-Westmoreland-Fayette-Indiana- Higher Elevations of Indiana-Hancock-Brooke-Ohio-Marshall-Wetzel- Marion-Monongalia- Including the cities of Beaver Falls, St. Clairsville, Butler, Ford City, Caldwell, Columbiana, New Philadelphia, Oil City, Waynesburg, Brookville, Franklin, Latrobe, Ellwood City, Murrysville, Ambridge, Pittsburgh Metro Area, Salem, Coshocton, Malvern, Zanesville, New Castle, New Martinsville, Monaca, Greensburg, Uniontown, Wellsburg, East Liverpool, Canonsburg, Tionesta, Indiana, Fairmont, Steubenville, Hermitage, Cambridge, Woodsfield, Washington, Follansbee, Armagh, Dover, Carrollton, Morgantown, Cadiz, New Kensington, Monessen, Grove City, Moundsville, Martins Ferry, Lower Burrell, Aliquippa, Punxsutawney, Kittanning, Sharon, Wheeling, Clarion, and Weirton 109 AM EST Mon Dec 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 1 PM EST TUESDAY... * WHAT...Snow expected. Total snow accumulations between 2 and 5 inches. * WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia. * WHEN...From midnight tonight to 1 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Tuesday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please report snow or ice accumulations by calling 412-262-1988, posting to the NWS Pittsburgh Facebook page, or using X @NWSPittsburgh. Sent from my SM-S931U using Tapatalk

Euro?

URGENT - WINTER WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1238 AM EST Mon Dec 1 2025 ...FIRST WIDESPREAD WINTER EVENT OF THE SEASON... .Precipitation is expected to overspread the area after midnight tonight from southwest to northeast. While precipitation is likely to start as snow areawide, it is expected to mix with and change to sleet and freezing rain for most of the area. Locations along and south of US-50/I-66 likely end the event as rain as temperatures warm through the morning. Areas along the Mason-Dixon are most likely to remain all snow through the event, but that remains uncertain given exact low track. The Tuesday morning commute could be impacted for all areas in the Winter Weather Advisory. Updates to the forecast are likely, so please remain weather aware for the first widespread winter event of the season. VAZ025>031-036>040-050-051-501-503>505-507-508-WVZ050-055-502-505- 506-011345- /O.NEW.KLWX.WW.Y.0022.251202T0600Z-251202T1700Z/ Augusta-Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke- Nelson-Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Northern Fauquier-Western Highland-Eastern Highland-Western Loudoun-Northern Virginia Blue Ridge-Central Virginia Blue Ridge- Hampshire-Hardy-Eastern Grant-Western Pendleton-Eastern Pendleton- 1238 AM EST Mon Dec 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO NOON EST TUESDAY... * WHAT...Mixed precipitation expected, with a majority of the precipitation expected in the form of freezing rain. Total snow and sleet accumulations up to one inch and ice accumulations around one tenth of an inch, with upwards of two tenths of an inch possible on the higher ridges. * WHERE...Portions of central, northern, northwest, and western Virginia and eastern West Virginia. * WHEN...From 1 AM to noon EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute. * ADDITIONAL DETAILS...Precipitation is expected to overspread the area after after midnight tonight. Precipitation is expected to start briefly as snow before mixing with and changing over to sleet and freezing rain.

URGENT - WINTER WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1238 AM EST Mon Dec 1 2025 ...FIRST WIDESPREAD WINTER EVENT OF THE SEASON... .Precipitation is expected to overspread the area after midnight tonight from southwest to northeast. While precipitation is likely to start as snow areawide, it is expected to mix with and change to sleet and freezing rain for most of the area. Locations along and south of US-50/I-66 likely end the event as rain as temperatures warm through the morning. Areas along the Mason-Dixon are most likely to remain all snow through the event, but that remains uncertain given exact low track. The Tuesday morning commute could be impacted for all areas in the Winter Weather Advisory. Updates to the forecast are likely, so please remain weather aware for the first widespread winter event of the season. MDZ501-502-509-510-WVZ501-503-504-011345- /O.NEW.KLWX.WW.Y.0022.251202T0600Z-251202T1800Z/ Extreme Western Allegany-Central and Eastern Allegany-Western Garrett-Eastern Garrett-Western Grant-Western Mineral-Eastern Mineral- 1238 AM EST Mon Dec 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM TO 1 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow and sleet accumulations between 1 and 3 inches with locally up to 4 inches near the Mason-Dixon. Ice accumulations up to one tenth of an inch. * WHERE...Portions of western Maryland and eastern West Virginia. * WHEN...From 1 AM to 1 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will likely impact the Tuesday morning commute. * ADDITIONAL DETAILS...Precipitation is expected to overspread the area after after midnight tonight. Precipitation is expected to start as snow before mixing with sleet and freezing rain. Should precipitation stay all snow or snow for a longer period of time, locally higher snowfall amounts would be possible. Additional upslope snow showers are expected Tuesday afternoon for locations west of the Allegheny Front which could produce a coating to inch or so of additional accumulation.

URGENT - WINTER WEATHER MESSAGE National Weather Service Baltimore MD/Washington DC 1238 AM EST Mon Dec 1 2025 ...FIRST WIDESPREAD WINTER EVENT OF THE SEASON... .Precipitation is expected to overspread the area after midnight tonight from southwest to northeast. While precipitation is likely to start as snow areawide, it is expected to mix with and change to sleet and freezing rain for most of the area. Locations along and south of US-50/I-66 likely end the event as rain as temperatures warm through the morning. Areas along the Mason-Dixon are most likely to remain all snow through the event, but that remains uncertain given exact low track. The Tuesday morning commute could be impacted for all areas in the Winter Weather Advisory. Updates to the forecast are likely, so please remain weather aware for the first widespread winter event of the season. MDZ003>006-507-WVZ051>053-011345- /O.NEW.KLWX.WW.Y.0022.251202T0800Z-251202T1800Z/ Washington-Frederick MD-Carroll-Northern Baltimore-Northwest Harford-Morgan-Berkeley-Jefferson- 1238 AM EST Mon Dec 1 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 1 PM EST TUESDAY... * WHAT...Mixed precipitation expected. Total snow and sleet accumulations of 1 to 2 inches, with locally higher amounts upwards of 4 inches possible near the Mason-Dixon and higher elevations such as Parr`s Ridge. Ice accumulations around up to one tenth of an inch. * WHERE...Portions of north central and northern Maryland and panhandle West Virginia. * WHEN...From 3 AM to 1 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute. * ADDITIONAL DETAILS...Precipitation is expected to overspread the area after after midnight tonight. Precipitation is expected to start as snow before mixing with sleet and freezing rain. Should precipitation stay all snow or snow for a longer period of time, locally higher snowfall amounts would be possible.

Now the GFS is showing what the Euro did yesterday, a change to heavy snow by Tuesday morning from the Plateau and west along the Tn/Ky border counties. Cranks out 2 inches imby. The HRRR is more vertical with it's bands of snow and further west, deep into Western areas of the forum.

Ready for another white knuckle tracking season.

lol, GEFS capitulating. much lower AO, -NAO signal strengthening too

Being on the northern portion of the system you kind of worry this could bump a bit south and be just a dog turd duster, but we seem to be holding in the 0.12-0.17 range for precip. 1-2" refresher looking pretty likely here.

1-3”; rain snow line is real close to us.

WWA's up for Northern and western areas.

This is ugly. 850 trough over the GL/OV stronger, and we've gone from 20kts of 850 overrunning to 40kts, and further west. Weenies avert your eyes.

i couldn't find a metaphor for snow falling, so i had to resort to alternative options

Thank you!!

The sentiment is appreciated, even if you had to use ChatGPT to write it for you 34F at 12:30am with a forecast low of 23.

Im hoping for 2" of powder to cover up the 2" frozen crust. Will work wonders. Not sure how good ratios will be, but with temps in the mid 20s at least I know it won't be wet cement again. Anywhere that was plowed is literally like a boulder that could kill now.

The 2nd deform zone will be the wild card for some decent totals in SNE/CNE. Hoping for warning snows into downtown Greenfield but somewhere between the Berkshires and Worcester, there will be a narrow band where a few towns get smoked.

These are the kind that can jump out and "scare" someone with an unexpected 6 inches. Certainly will give the rest of us a chance to pack match the last systems winners lol. Load me up with chips, I'm calling 4 for here!

WB 0Z EURO; about as bad as the Commanders game.

Happy December, everyone! Cold season has begun. There will be heartbreak. There will be despair. But therein lies satisfaction and joy in the quiet crystal dust that falls from the sky. Our first event starts tomorrow (December 2), and while it looks to be a NW special, sit back, relax, and enjoy the show! After all, it's only early December; the precipitation—rain or snow—is much needed to dig out of this drought. Plus, I’m sure we’ll have plenty of chances afterward, if the model guidance for December keeps trending the way it has. The pattern looks active, the indices are aligning, and winter seems eager to take its first real swing. Whether it’s a miss or a direct hit, the ride is just beginning. If I were you, I'd bundle up, check back often, and let’s see what the next wave of guidance brings. Winter has arrived, and it's ready to rumble. Cheers to a cold and snowy start to winter! May the odds be ever in our favor.

I’m right here in Pearl River, I’m definitely taking the ride up to Harriman or if I have to even go a little further to Monroe, those two areas seem to be the sweet spot of 5 to 8 inches, I will be enjoying the storm on Tuesday, don’t have to drive that far up the palisades to get into the good stuff

Final Call: https://easternmassweather.blogspot.com/2025/11/final-call-for-tuesday-winter-storm.html FINAL CALL: FIRST CALL:

Less. WX/PT

Final Call for Tuesday Winter Storm Expect Early School Dismissals & Messy PM Commute The forecast rationale as laid out in the First Call on Friday remains largely unchanged, although the details have become somewhat clearer, as is usually the case. Synoptic Overview Eastern Mass Weather forecast a busy month of December in what promised to be an active start to the 2025-2026 winter season across the southern New England forecast area, and it now appears that this active pattern is underway. However, the first storm system that is passing by tonight is obviously falling as rain, as expected. This is due to the fact that there remains a strongly positive NAO in place, which is conspiring with energy over the western CONUS (Tuesday's winter storm) to raise eastern heights on the east coast enough to allow this final rain event to track across northern New England tonight. This system will head through the Canadien maritimes and into the North Atlantic, where it will help to elevate heights in the NAO domain as the system number two begins to eject out int the Tennessee valley by Tuesday morning. Heights over the east will subtly descend as the energy shifts east, and the riding builds in the vicinity of Greenland. This will displace the PV slightly further to the south and suppress the storm track just enough to provide the forecast areas with it's first winter storm of the season for Tuesday afternoon into the predawn hours of Wednesday morning, before this system also pulls away into the Maritimes. Anticipated Storm Evolution Although some flurries are possible across western New England, we should escape the morning commute on Tuesday largely unscathed and without delay. It is important not to be mislead, as the plot will thicken and the visibility will lower, at least for those locales receiving snowfall, by midday, as the precipitation will grow steadier and somewhat heavier. However, any snowfall over the southeastern third of the region will be brief, as southeast winds off the ocean out ahead of the approaching low will cause precipitation to rapidly mix with and change to rain given the lack of an antecedent high pressure in place to the north to replenish the cold air supply. This will also result in the development of a coastal front Tuesday afternoon over Eastern Mass and coastal New Hampshire. The marine layer will encroach on ENE winds to the seaward side of the front, which will hinder accumulations and even trigger a change to rain along the immediate shore. However, the poleward side may see some local higher amounts given mesoscale banding as a result of low level convergence and mid level deformation, from the southern Worcester hills up through the Nashoba Valley, and into interior southeastern New Hampshire. That being said, enhancement is a relative term, and while travel will be disrupted, these will not be crippling rates given the less than ideal banding signal in conjunction with the rapid pace of movement. Then as the low passes by later in the evening, the winds will veer more northerly again, and the coastal front will collapse to the shore, at which point any lingering precipitation will end as a period of snowfall during the predawn hours of Wednesday AM. There are likely to be some delays on Wednesdays with slippery spots likely, but cancellations should be sparse, as road crews will have had ample time to work their magic before sunrise. That said, allow for a slower than usual commute Wednesday morning. FINAL CALL: FIRST CALL:

Modeling is now good enough we do not usually get the surprises we got in the 1960s & 70s (very few in the 70s). WX/PT