TheClimateChanger

SNOW SQUALL WARNING NWS PITTSBURGH PA 1035 PM EST WED DEC 31 2025 PAC019-031-073-085-121-010415- /O.CON.KPBZ.SQ.W.0001.000000T0000Z-260101T0415Z/ 1035 PM EST WED DEC 31 2025 Butler County-Clarion County-Lawrence County-Mercer County-Venango County- ...SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 1115 PM EST FOR SOUTHERN MERCER, SOUTHERN VENANGO, NORTHERN BUTLER, WEST CENTRAL CLARION AND NORTHERN LAWRENCE COUNTIES... At 1035 PM EST, a dangerous snow squall was located along a line from near Oil City to near Farrell, or along a line from near Oil City to near Sharon, moving south at 15 mph. Visbility dropped to one-quarter mile at the airport in Franklin. HAZARD...Intense bursts of heavy snow and gusty winds leading to blowing snow and rapidly falling visibility. Wind gusts up to 35 mph. SOURCE...Doppler radar and airport visibility sensors. IMPACT...Travel will become difficult and potentially dangerous within minutes. Locations impacted include... Hermitage, Sharon, Oil City, Grove City, Franklin, Sharpsville, Knox, Sugarcreek, Farrell, Slippery Rock, New Wilmington, Oakwood, New Castle Northwest, Mercer, Pulaski, Hasson Heights, Stoneboro, Seneca, New Bedford and Harrisville. This includes the following highways... Interstate 80 in Pennsylvania between mile markers 0 and 56. Interstate 79 in Pennsylvania between mile markers 109 and 128. Interstate 376 between mile markers 0 and 12. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow Down! Rapid changes in visibility and road conditions are expected with this dangerous snow squall. Be alert for sudden whiteout conditions. LAT...LON 4128 8052 4146 7962 4119 7949 4116 7968 4117 7969 4115 7969 4100 8052 4128 8052 SNOW SQUALL...OBSERVED $$

Not sure if it's possible to embed but here's some lightning earlier in McKean Township, just south of Erie. https://www.facebook.com/reel/1873659720188526

Thundersnow in northwest Pennsylvania and southwest New York.

Didn't measure, but eyeballing looks like at least 2, maybe 3 inches here. Squall line showing up on radar south of Cleveland.

Looking at upstream observations. Some freezing drizzle being reported at YNG.

Are we sure this uptick in winds isn't the result of the new Vaisala WMT-702 ultrasonic Ice-Free Wind Sensors?

Snowing here, although it is a grainier snow, not the fluff from earlier.

The airport is reporting freezing drizzle. Hopefully that won't last long!

Wow, big gains over the last two days. Almost wonder if the wind wasn't messing with algorithm. Now just 1% below the 52-year average.

Another weathergami on Monday:

Solid start. I'm probably closing in on an additional inch. Grass is completely covered now.

That's our bread and butter. Although I'm gonna have to call foul on the airport (actually the NWS office in Moon) being moved 20 miles south, since it already did better than probably 75-80% of the area with the last event. It doesn't need to be the jackpot for every event.

Good news on the Lake Erie ice front. Recent warmth has brought total ice coverage down to less than 25% of normal to date (4% coverage versus mean of 13% for the date). All of the lakes are running a little behind normal, as of yesterday's analysis.

Snow squall conditions possible tomorrow night, per NWS. URGENT - WINTER WEATHER MESSAGE National Weather Service Pittsburgh PA 104 PM EST Tue Dec 30 2025 OHZ039>041-049-050-059-069-PAZ013-014-020>022-029-031-073-075-077- WVZ001>004-012-021-509-310200- /O.NEW.KPBZ.WW.Y.0028.251231T1800Z-260101T1500Z/ Tuscarawas-Carroll-Columbiana-Harrison-Jefferson OH-Belmont- Monroe-Lawrence-Butler-Beaver-Allegheny-Armstrong-Washington-Greene- Westmoreland-Fayette-Indiana-Hancock-Brooke-Ohio-Marshall-Wetzel- Marion-Monongalia- Including the cities of Kittanning, Washington, Uniontown, Morgantown, New Philadelphia, New Castle, Malvern, Woodsfield, Weirton, Monaca, Canonsburg, Indiana, Salem, Monessen, Moundsville, Lower Burrell, Ellwood City, Waynesburg, Latrobe, New Martinsville, Beaver Falls, Aliquippa, Ford City, Murrysville, Wellsburg, Ambridge, Pittsburgh Metro Area, New Kensington, Butler, Follansbee, Martins Ferry, St. Clairsville, Cadiz, East Liverpool, Steubenville, Fairmont, Greensburg, Columbiana, Carrollton, Wheeling, and Dover 104 PM EST Tue Dec 30 2025 ...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM WEDNESDAY TO 10 AM EST THURSDAY... * WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. Snow squall conditions will be possible during the evening and overnight. * WHERE...Portions of east central Ohio, southwest and western Pennsylvania, and northern and the northern panhandle of West Virginia. * WHEN...From 1 PM Wednesday to 10 AM EST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Wednesday evening and Thursday morning commutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Please report snow or ice accumulations by calling 412-262-1988, posting to the NWS Pittsburgh Facebook page, or using X @NWSPittsburgh. && $$ 88

Only about an inch here this morning, but it's snowing very heavily now and rapidly accumulating. Wonder if we'll get a snow squall warning?

Thanks for the update, Don. As one might expect, a MASSIVE outbreak of "weathergamis" occurred yesterday (and undoubtedly today as well). I've been following this account for a while and this is, by far, the most I've seen.

Severe weather, including tornados, look possible as well.

Back on now, although mostly from PIT north now.

Like in Pittsburgh, Monday afternoon may be in the upper 20s but the high is likely to be near 60 degrees!

The progged temps aren’t factoring in the incredibly warm midnight highs that are likely in this regime, so probably way too low.

Februarys were a blowtorch, however. Very curious. Will be interesting to see if a similar theme plays out in 2026.

Wow, this is interesting how cold the ensuing Januarys were following the warmest Decembers. Some are forecasting a cold January this year as well.

Either way, a VERY respectable anomaly. From a historical standpoint, this could wind up warmer than any December prior to 2015 if PRISM is close. Not sure what's going on with recent Decembers. 3 of the past 4 were even warmer. So from a historical standpoint, EXTREMELY impressive, but from the vantage point of recent years, pretty ho-hum national anomaly. It doesn't appear to be data error, because the USCRN network suggests recent Decembers were even warmer than given by the nClimDiv numbers.

I bit the bullet and picked up a subscription for the PRISM estimates. It's estimating 2.76F through Christmas day, but we've been adding 0.5F per day lately. Extrapolating through yesterday, PRISM would probably have us up to ~+3.2F for the month to date.