764 WWUS51 KPBZ 300317 SQWPBZ BULLETIN - IMMEDIATE BROADCAST REQUESTED Snow Squall Warning National Weather Service Pittsburgh PA 1017 PM EST Mon Dec 29 2025 PAC005-019-063-073-085-300415- /O.NEW.KPBZ.SQ.W.0023.251230T0317Z-251230T0415Z/ Mercer PA-Lawrence PA-Butler PA-Indiana PA-Armstrong PA- 1017 PM EST Mon Dec 29 2025 The National Weather Service in Pittsburgh has issued a * Snow Squall Warning for... Southeastern Mercer County in northwestern Pennsylvania... Northeastern Lawrence County in western Pennsylvania... Central Butler County in west central Pennsylvania... North central Indiana County in west central Pennsylvania... Central Armstrong County in west central Pennsylvania... * Until 1115 PM EST. * At 1016 PM EST, a dangerous snow squall was located near Slippery Rock, or 11 miles east of New Castle, moving east at 55 mph. HAZARD...Intense bursts of heavy snow. Gusty winds leading to blowing snow and rapidly falling visibility. Wind gusts greater than 35 mph. SOURCE...Radar and webcams. IMPACT...Travel will become difficult and potentially dangerous within minutes. This includes Interstate 79 in Pennsylvania between mile markers 95 and 108. Locations impacted include... New Castle, Butler, Kittanning, Homeacre-Lyndora, Shanor-Northvue, Meridian, Slippery Rock, Ford City, Meadowood, Oak Hills, New Castle Northwest, West Kittanning, Prospect, Chicora, Rural Valley, Plain Grove Township, East Butler, South New Castle, Worthington, and Dayton. 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 4068 7920 4069 7934 4096 8038 4105 8034 4111 8028 4097 7963 4085 7902 TIME...MOT...LOC 0316Z 286DEG 48KT 4098 8012 SNOW SQUALL...OBSERVED $$ Hefferan  503 WWUS51 KPBZ 300343 SQWPBZ Snow Squall Warning National Weather Service Pittsburgh PA 1043 PM EST Mon Dec 29 2025 PAC073-085-300352- /O.CAN.KPBZ.SQ.W.0023.000000T0000Z-251230T0415Z/ Mercer PA-Lawrence PA- 1043 PM EST Mon Dec 29 2025 ...THE SNOW SQUALL WARNING FOR SOUTHEASTERN MERCER AND NORTHEASTERN LAWRENCE COUNTIES IS CANCELLED... The snow squall that prompted the warning has moved out of the warned area. Therefore, the snow squall warning has been cancelled. && LAT...LON 4068 7920 4069 7934 4087 8003 4096 8006 4103 7993 4098 7967 4097 7963 4085 7902 TIME...MOT...LOC 0342Z 286DEG 48KT 4088 7967 $$ PAC005-019-063-300415- /O.CON.KPBZ.SQ.W.0023.000000T0000Z-251230T0415Z/ Butler PA-Indiana PA-Armstrong PA- 1043 PM EST Mon Dec 29 2025 ...A SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 1115 PM EST FOR CENTRAL BUTLER...NORTH CENTRAL INDIANA AND CENTRAL ARMSTRONG COUNTIES... At 1042 PM EST, a dangerous snow squall was located 8 miles northwest of Kittanning, moving east at 55 mph. HAZARD...Intense bursts of heavy snow. Gusty winds leading to blowing snow and rapidly falling visibility. Wind gusts greater than 35 mph. SOURCE...Radar and webcams. IMPACT...Travel will become difficult and potentially dangerous within minutes. Locations impacted include... Butler, Kittanning, Homeacre-Lyndora, Shanor-Northvue, Meridian, Ford City, Meadowood, Oak Hills, West Kittanning, Prospect, Chicora, Rural Valley, East Butler, Worthington, Dayton, West Hills, Manorville, Ford Cliff, Elderton, and Applewold. 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 4068 7920 4069 7934 4087 8003 4096 8006 4103 7993 4098 7967 4097 7963 4085 7902 TIME...MOT...LOC 0342Z 286DEG 48KT 4088 7967 SNOW SQUALL...OBSERVED $$ Hefferan  427 WWUS51 KPBZ 300356 SQWPBZ Snow Squall Warning National Weather Service Pittsburgh PA 1056 PM EST Mon Dec 29 2025 PAC005-019-063-300415- /O.CON.KPBZ.SQ.W.0023.000000T0000Z-251230T0415Z/ Butler PA-Indiana PA-Armstrong PA- 1056 PM EST Mon Dec 29 2025 ...A SNOW SQUALL WARNING REMAINS IN EFFECT UNTIL 1115 PM EST FOR EAST CENTRAL BUTLER...NORTH CENTRAL INDIANA AND CENTRAL ARMSTRONG COUNTIES... At 1055 PM EST, a dangerous snow squall was located over Kittanning, moving east at 40 mph. HAZARD...Intense bursts of heavy snow. Gusty winds leading to blowing snow and rapidly falling visibility. Wind gusts greater than 35 mph. SOURCE...Radar and webcams. IMPACT...Travel will become difficult and potentially dangerous within minutes. Locations impacted include... Kittanning, Ford City, West Kittanning, Chicora, Rural Valley, Worthington, Dayton, West Hills, Manorville, Elderton, Applewold, Creekside, Plumville, Lenape Heights, Atwood, Smicksburg, and Templeton. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow Down! Rapid changes in visibility and road conditions are expected with this dangerous snow squall. Be alert for sudden whiteout conditions. && LAT...LON 4068 7920 4069 7934 4088 7982 4098 7977 4098 7967 4097 7963 4085 7902 TIME...MOT...LOC 0355Z 288DEG 33KT 4084 7954 SNOW SQUALL...OBSERVED $$ Hefferan