Alert archive / Pennsylvania / Winter Storm Warnings in 2021
Winter Storm Warning 2, NWS State College, PA
NWS State College, PA issued this winter storm warning at Jan 30, 2021, 3:24 PM EST for 26 counties in Pennsylvania. It took effect at Jan 31, 2021, 3:00 AM EST. It was in force for 112 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jan 30, 2021, 3:24 PM EST (20:24 UTC)
- In effect from
- Jan 31, 2021, 3:00 AM EST
- Expired
- Jan 31, 2021, 4:52 AM EST
- In force
- 112 min
- Issued by
- NWS State College, PA
All 26 counties
Adams County, PA, Bedford County, PA, Blair County, PA, Cambria County, PA, Centre County, PA, Clinton County, PA, Columbia County, PA, Cumberland County, PA, Dauphin County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Lancaster County, PA, Lebanon County, PA, Lycoming County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Union County, PA, York County, PA
The radar
The State College radar (KCCX), 72 km from the middle of the area, began a volume at 20:29 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.4 hours before the alert went out and 176 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1279 m above ground
- 0-6 km bulk shear
- 83 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
580 WWUS41 KCTP 302024 WSWCTP URGENT - WINTER WEATHER MESSAGE National Weather Service State College PA 324 PM EST Sat Jan 30 2021 PAZ024>028-033>036-056-057-059-063>066-310830- /O.UPG.KCTP.WS.A.0002.210131T0800Z-210202T0000Z/ /O.NEW.KCTP.WS.W.0002.210131T0800Z-210202T1000Z/ Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset-Bedford-Fulton- Franklin-Perry-Dauphin-Lebanon-Cumberland-Adams-York-Lancaster- Including the cities of Johnstown, Altoona, Huntingdon, Mount Union, Lewistown, Mifflintown, Somerset, Bedford, McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, Lebanon, Carlisle, Gettysburg, York, and Lancaster 324 PM EST Sat Jan 30 2021 ...WINTER STORM WARNING IN EFFECT FROM 3 AM SUNDAY TO 5 AM EST TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 12 inches. * WHERE...Portions of central Pennsylvania. * WHEN...From 3 AM Sunday to 5 AM EST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snow will overspread the area from west to east Sunday morning, reaching the far eastern areas early Sunday afternoon. The snow will continue through Monday into early Tuesday morning. The snow could be especially heavy across the southeastern portion of central Pennsylvania on Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel as significant winter weather conditions will make travel very hazardous. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ019-042-045-046-049>053-058-310830- /O.NEW.KCTP.WS.W.0002.210131T0800Z-210202T1000Z/ Southern Centre-Sullivan-Southern Clinton-Southern Lycoming-Union- Snyder-Montour-Northumberland-Columbia-Schuylkill- Including the cities of State College, Laporte, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, Berwick, and Pottsville 324 PM EST Sat Jan 30 2021 ...WINTER STORM WARNING IN EFFECT FROM 3 AM SUNDAY TO 5 AM EST TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 7 to 12 inches. * WHERE...Portions of central Pennsylvania. * WHEN...From 3 AM Sunday to 5 AM EST Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snow will overspread the area from west to east Sunday morning, reaching the far eastern areas early Sunday afternoon. The snow will continue through Monday into early Tuesday morning. The snow could be especially heavy across the southeastern portion of central Pennsylvania on Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel as significant winter weather conditions will make travel very hazardous. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ012-017-018-037-041-310830- /O.NEW.KCTP.WS.A.0003.210131T0800Z-210202T1000Z/ Northern Clinton-Clearfield-Northern Centre-Tioga- Northern Lycoming- Including the cities of Renovo, DuBois, Clearfield, Philipsburg, Mansfield, Wellsboro, and Trout Run 324 PM EST Sat Jan 30 2021 ...WINTER STORM WATCH IN EFFECT FROM 3 AM EST SUNDAY THROUGH LATE MONDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations of 5 to 8 inches possible. * WHERE...Northern Clinton, Clearfield, Northern Centre, Tioga and Northern Lycoming Counties. * WHEN...From 3 AM EST Sunday through late Monday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snow will move into north central Pennsylvania during the first half of Sunday and continue into Monday. It is still early to pinpoint the exact track of the storm. At the current time, the heaviest snow is expected further south. PRECAUTIONARY/PREPAREDNESS ACTIONS... There is the potential for significant winter weather that may impact travel. Review winter weather safety and preparedness information at weather.gov/winter. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ Martin/Banghoff/Evanego
2 follow-up statements
633 WWUS41 KCTP 310339 WSWCTP URGENT - WINTER WEATHER MESSAGE National Weather Service State College PA 1039 PM EST Sat Jan 30 2021 PAZ019-024>028-033>036-042-045-046-049>053-056>059-063>066-311700- /O.CON.KCTP.WS.W.0002.210131T0800Z-210202T1000Z/ Southern Centre-Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset- Bedford-Fulton-Franklin-Sullivan-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia- Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- Including the cities of State College, Johnstown, Altoona, Huntingdon, Mount Union, Lewistown, Mifflintown, Somerset, Bedford, McConnellsburg, Chambersburg, Laporte, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 1039 PM EST Sat Jan 30 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM SUNDAY TO 5 AM EST TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 12 inches. * WHERE...Portions of central Pennsylvania. * WHEN...From 3 AM Sunday to 5 AM EST Tuesday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snow will overspread the area from west to east Sunday morning, reaching the far eastern areas early Sunday afternoon. The snow will continue through Monday into early Tuesday morning. The snow could be especially heavy across the southeastern portion of central Pennsylvania on Monday. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel as significant winter weather conditions will make travel very hazardous. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ012-017-018-037-041-311700- /O.CON.KCTP.WS.A.0003.210131T0800Z-210202T1000Z/ Northern Clinton-Clearfield-Northern Centre-Tioga- Northern Lycoming- Including the cities of Renovo, DuBois, Clearfield, Philipsburg, Mansfield, Wellsboro, and Trout Run 1039 PM EST Sat Jan 30 2021 ...WINTER STORM WATCH REMAINS IN EFFECT FROM 3 AM EST SUNDAY THROUGH LATE MONDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations of 5 to 8 inches possible. * WHERE...Northern Clinton, Clearfield, Northern Centre, Tioga and Northern Lycoming Counties. * WHEN...From 3 AM EST Sunday through late Monday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snow will move into north central Pennsylvania during the first half of Sunday and continue into Monday. It is still early to pinpoint the exact track of the storm. At the current time, the heaviest snow is expected further south. PRECAUTIONARY/PREPAREDNESS ACTIONS... There is the potential for significant winter weather that may impact travel. Review winter weather safety and preparedness information at weather.gov/winter. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$
958 WWUS41 KCTP 310952 WSWCTP URGENT - WINTER WEATHER MESSAGE National Weather Service State College PA 452 AM EST Sun Jan 31 2021 PAZ019-024>028-033>036-045-049-050-052-056-057-063>065-312200- /O.CAN.KCTP.WS.W.0002.000000T0000Z-210202T1000Z/ /O.NEW.KCTP.WS.W.0003.210131T1000Z-210202T1000Z/ Southern Centre-Cambria-Blair-Huntingdon-Mifflin-Juniata-Somerset- Bedford-Fulton-Franklin-Southern Clinton-Union-Snyder- Northumberland-Perry-Dauphin-Cumberland-Adams-York- Including the cities of State College, Johnstown, Altoona, Huntingdon, Mount Union, Lewistown, Mifflintown, Somerset, Bedford, McConnellsburg, Chambersburg, Lock Haven, Lewisburg, Selinsgrove, Sunbury, Shamokin, Newport, Harrisburg, Hershey, Carlisle, Gettysburg, and York 452 AM EST Sun Jan 31 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM EST TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 8 to 14 inches, with the highest amounts north and east of Harrisburg. A light glaze of ice is also likely from Harrisburg southward. * WHERE...Portions of central Pennsylvania. * WHEN...Light snow will overspread the region this morning and continue through tonight. The snow could become heavier on Monday and potentially mix with ice from Harrisburg southward. Expect the snow to taper off by late Monday night. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel as significant winter weather conditions will make travel very hazardous. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ042-046-051-053-058-059-066-312200- /O.CAN.KCTP.WS.W.0002.000000T0000Z-210202T1000Z/ /O.NEW.KCTP.WS.W.0003.210131T1500Z-210202T1000Z/ Sullivan-Southern Lycoming-Montour-Columbia-Schuylkill-Lebanon- Lancaster- Including the cities of Laporte, Williamsport, Danville, Bloomsburg, Berwick, Pottsville, Lebanon, and Lancaster 452 AM EST Sun Jan 31 2021 ...WINTER STORM WARNING IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 10 to 14 inches, with the highest amounts north of Harrisburg. A light glaze of ice is likely south of Harrisburg. * WHERE...Portions of central Pennsylvania. * WHEN...Light snow will overspread the region late this morning and continue through tonight. The snow could become heavier on Monday and potentially mix with ice south of Harrisburg. Expect the snow to taper by late Monday night. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel as significant winter weather conditions will make travel very hazardous. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ012-018-312200- /O.UPG.KCTP.WS.A.0003.000000T0000Z-210202T1000Z/ /O.NEW.KCTP.WS.W.0003.210131T1000Z-210202T1000Z/ Northern Clinton-Northern Centre- Including the cities of Renovo and Philipsburg 452 AM EST Sun Jan 31 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM EST TUESDAY... * WHAT...Heavy snow expected. Total accumulations of 8 to 12 inches. * WHERE...Northern Clinton and Northern Centre Counties. * WHEN...Light snow will develop this morning and continue through tonight. The snow could become heavier at times on Monday, then will taper off Monday night. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel as significant winter weather conditions will make travel very hazardous. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ041-312200- /O.UPG.KCTP.WS.A.0003.000000T0000Z-210202T1000Z/ /O.NEW.KCTP.WS.W.0003.210131T1500Z-210202T1000Z/ Northern Lycoming- Including the city of Trout Run 452 AM EST Sun Jan 31 2021 ...WINTER STORM WARNING IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST TUESDAY... * WHAT...Heavy snow expected. Total accumulations of 8 to 12 inches. * WHERE...Northern Lycoming County. * WHEN...Light snow will develop late this morning and continue through tonight. The snow could become heavier at times on Monday, then will taper off late Monday night. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission strongly encourage motorists to heed all travel restrictions and delay unnecessary travel as significant winter weather conditions will make travel very hazardous. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ017-312200- /O.UPG.KCTP.WS.A.0003.000000T0000Z-210202T1000Z/ /O.NEW.KCTP.WW.Y.0007.210131T1000Z-210202T1000Z/ Clearfield- Including the cities of DuBois and Clearfield 452 AM EST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM EST TUESDAY... * WHAT...Snow expected. Total accumulations of 6 to 9 inches. * WHERE...Clearfield County. * WHEN...Light snow will develop this morning and continue through Monday evening. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission remind motorists to adjust speeds based on driving conditions as winter weather impacts will include snow covered roads and limited visibility. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ037-312200- /O.UPG.KCTP.WS.A.0003.000000T0000Z-210202T1000Z/ /O.NEW.KCTP.WW.Y.0007.210131T1500Z-210202T1000Z/ Tioga- Including the cities of Mansfield and Wellsboro 452 AM EST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST TUESDAY... * WHAT...Snow expected. Total accumulations of 7 to 10 inches. * WHERE...Tioga County. * WHEN...Light snow will develop late this morning and continue through tonight. The snow could become heavier at times on Monday, then will taper off late Monday night. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission remind motorists to adjust speeds based on driving conditions as winter weather impacts will include snow covered roads and limited visibility. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ010-011-312200- /O.NEW.KCTP.WW.Y.0007.210131T1000Z-210202T1000Z/ Elk-Cameron- Including the cities of St. Marys, Ridgway, and Emporium 452 AM EST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM EST TUESDAY... * WHAT...Snow expected. Total accumulations of 5 to 10 inches. * WHERE...Elk and Cameron Counties. * WHEN...Light snow will develop this morning and continue through Monday evening. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission remind motorists to adjust speeds based on driving conditions as winter weather impacts will include snow covered roads and limited visibility. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$ PAZ006-312200- /O.NEW.KCTP.WW.Y.0007.210131T1500Z-210202T1000Z/ Potter- Including the city of Coudersport 452 AM EST Sun Jan 31 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 5 AM EST TUESDAY... * WHAT...Snow expected. Total accumulations of 5 to 8 inches. * WHERE...Potter County. * WHEN...Light snow will develop late this morning and continue through Monday evening. * IMPACTS...Travel could be difficult today through Monday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... The Pennsylvania Department of Transportation and Pennsylvania Turnpike Commission remind motorists to adjust speeds based on driving conditions as winter weather impacts will include snow covered roads and limited visibility. Call 5 1 1 or visit www.511pa.com for the latest travel, roadway and traffic conditions. To report snow or ice, post to the NWS State College Facebook page, use Twitter @NWSStateCollege, or visit weather.gov/ctp. && $$
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 29, 8:54 PM EST | Winter Storm Watch | CTP | Adams, Bedford, Blair, Cambria, Cumberland, Dauphin and 10 more | 19 hr |
| Jan 29, 9:33 PM EST | Special Weather Statement | CTP | Centre | 57 min |
| Jan 30, 3:24 PM EST | Winter Storm Watch | CTP | Centre, Clearfield, Clinton, Lycoming, Tioga | 13 hr |
Nearby
Winter Storm Warnings in Pennsylvania, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.