Alert archive / Pennsylvania / Freeze Warnings in 2021
Freeze Warning 3, NWS State College, PA
NWS State College, PA issued this freeze warning at Apr 30, 2021, 2:26 PM EDT for 5 counties in Pennsylvania. It took effect at May 1, 2021, 12:00 AM EDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 30, 2021, 2:26 PM EDT (18:26 UTC)
- In effect from
- May 1, 2021, 12:00 AM EDT
- Expired
- May 1, 2021, 8:00 AM EDT
- In force
- 8 hr
- Issued by
- NWS State College, PA
Counties Cambria County, PA, Centre County, PA, Clearfield County, PA, Somerset County, PA, Warren County, PA
The radar
The State College radar (KCCX), 56 km from the middle of the area, began a volume at 18:28 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
Pittsburgh, PA (KPIT), launched 12:00Z, 6.4 hours before the alert went out and 130 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
- 39 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 643 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
494 WWUS71 KCTP 301826 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 226 PM EDT Fri Apr 30 2021 PAZ017-018-024-033-010630- /O.UPG.KCTP.FZ.A.0003.210501T0400Z-210501T1200Z/ /O.NEW.KCTP.FZ.W.0003.210501T0400Z-210501T1200Z/ /O.CON.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ Clearfield-Northern Centre-Cambria-Somerset- Including the cities of DuBois, Clearfield, Philipsburg, Johnstown, and Somerset 226 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT SATURDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 32 expected. For the Wind Advisory, northwest winds 15 to 25 mph, with gusts up to 50 mph. * WHERE...Clearfield, Northern Centre, Cambria and Somerset Counties. * WHEN...For the Freeze Warning, from midnight tonight to 8 AM EDT Saturday. For the Wind Advisory, until midnight EDT tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. For high wind safety information, visit weather.gov/wind. 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. Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. && $$ PAZ004-010630- /O.UPG.KCTP.FZ.A.0003.210501T0400Z-210501T1200Z/ /O.NEW.KCTP.FZ.W.0003.210501T0400Z-210501T1200Z/ Warren- Including the city of Warren 226 PM EDT Fri Apr 30 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Warren County. * WHEN...From midnight tonight to 8 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ PAZ035-036-056>059-063>066-010600- /O.CON.KCTP.HW.W.0002.000000T0000Z-210501T0600Z/ Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams- York-Lancaster- Including the cities of McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 226 PM EDT Fri Apr 30 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM EDT SATURDAY... * WHAT...Northwest winds 25 to 35 mph, with gusts up to 60 mph expected. * WHERE...Fulton, Franklin, Perry, Dauphin, Schuylkill, Lebanon, Cumberland, Adams, York, and Lancaster Counties. * WHEN...From 2 PM Friday to 2 AM EDT Saturday. The strongest winds are likely later this afternoon into the evening. * IMPACTS...Downed tree limbs onto power lines will likely result in scattered power outages. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. For high wind safety information, visit weather.gov/wind. 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. && $$ PAZ006-011-012-019-025>028-034-037-041-042-045-046-049>053-010400- /O.CON.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ Potter-Cameron-Northern Clinton-Southern Centre-Blair-Huntingdon- Mifflin-Juniata-Bedford-Tioga-Northern Lycoming-Sullivan- Southern Clinton-Southern Lycoming-Union-Snyder-Montour- Northumberland-Columbia- Including the cities of Coudersport, Emporium, Renovo, State College, Altoona, Huntingdon, Mount Union, Lewistown, Mifflintown, Bedford, Mansfield, Wellsboro, Trout Run, Laporte, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, and Berwick 226 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... * WHAT...Northwest winds 20 to 25 mph, with gusts around 50 mph expected. * WHERE...Much of central Pennsylvania. * WHEN...From noon Friday to midnight EDT Friday night. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. For high wind safety information, visit weather.gov/wind. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$
3 follow-up statements
918 WWUS71 KCTP 010257 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 1057 PM EDT Fri Apr 30 2021 PAZ035-036-056>059-063>066-010600- /O.CAN.KCTP.HW.W.0002.000000T0000Z-210501T0600Z/ /O.EXB.KCTP.WI.Y.0003.000000T0000Z-210501T0600Z/ Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams- York-Lancaster- Including the cities of McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 1057 PM EDT Fri Apr 30 2021 ...WIND ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY... ...HIGH WIND WARNING IS CANCELLED... * WHAT...Northwest winds 15 to 20 mph with gusts up to 50 mph. * WHERE...Fulton, Franklin, Perry, Dauphin, Schuylkill, Lebanon, Cumberland, Adams, York and Lancaster Counties. * WHEN...Until 2 AM EDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. For high wind safety information, visit weather.gov/wind. 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. && $$ PAZ017-024-033-011200- /O.CAN.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ /O.CON.KCTP.FZ.W.0003.210501T0400Z-210501T1200Z/ Clearfield-Cambria-Somerset- Including the cities of DuBois, Clearfield, Johnstown, and Somerset 1057 PM EDT Fri Apr 30 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT SATURDAY... ...WIND ADVISORY IS CANCELLED... * WHAT...Temperatures around 32 degrees expected. * WHERE...Cambria, Clearfield and Somerset Counties. * WHEN...Early Saturday morning. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ PAZ006-011-037-010400- /O.CAN.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ Potter-Cameron-Tioga- Including the cities of Coudersport, Emporium, Mansfield, and Wellsboro 1057 PM EDT Fri Apr 30 2021 ...WIND ADVISORY IS CANCELLED... Winds will continue to slowly diminish overnight. $$ PAZ018-011200- /O.CON.KCTP.FZ.W.0003.210501T0400Z-210501T1200Z/ /O.CON.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ Northern Centre- Including the city of Philipsburg 1057 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT SATURDAY... * WHAT...For the Freeze Warning, temperatures as low as 32 expected. For the Wind Advisory, northwest winds 20 to 25 mph, with gusts over 45 mph. * WHERE...Northern Centre County. * WHEN...For the Freeze Warning, early Saturday morning. For the Wind Advisory, until midnight EDT tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Freeze conditions could kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. For high wind safety information, visit weather.gov/wind. Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ PAZ004-011200- /O.CON.KCTP.FZ.W.0003.210501T0400Z-210501T1200Z/ Warren- Including the city of Warren 1057 PM EDT Fri Apr 30 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Warren County. * WHEN...Until 8 AM EDT Saturday. * IMPACTS...Freeze conditions may kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. 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. && $$ PAZ012-019-025>028-034-041-042-045-046-049>053-010400- /O.CON.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ Northern Clinton-Southern Centre-Blair-Huntingdon-Mifflin-Juniata- Bedford-Northern Lycoming-Sullivan-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia- Including the cities of Renovo, State College, Altoona, Huntingdon, Mount Union, Lewistown, Mifflintown, Bedford, Trout Run, Laporte, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, and Berwick 1057 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... * WHAT...Northwest winds 15 to 20 mph, with gusts around 45 mph. * WHERE...Portions of central Pennsylvania. * WHEN...Until midnight EDT tonight. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. For high wind safety information, visit weather.gov/wind. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
926 WWUS71 KCTP 010407 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 1207 AM EDT Sat May 1 2021 PAZ018-011200- /O.EXP.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ /O.CON.KCTP.FZ.W.0003.000000T0000Z-210501T1200Z/ Northern Centre- Including the city of Philipsburg 1207 AM EDT Sat May 1 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... ...WIND ADVISORY HAS EXPIRED... * WHAT...Low temperatures around 30 to 32 degrees are expected. * WHERE...Northern Centre County. * WHEN...For the Freeze Warning, early Saturday morning. For the Wind Advisory, until midnight EDT tonight. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation. * ADDITIONAL DETAILS...Valley locations and sheltered areas will experience the coldest temperatures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. 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. && $$ PAZ012-019-025>028-034-041-042-045-046-049>053-010515- /O.EXP.KCTP.WI.Y.0003.000000T0000Z-210501T0400Z/ Northern Clinton-Southern Centre-Blair-Huntingdon-Mifflin-Juniata- Bedford-Northern Lycoming-Sullivan-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia- Including the cities of Renovo, State College, Altoona, Huntingdon, Mount Union, Lewistown, Mifflintown, Bedford, Trout Run, Laporte, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, and Berwick 1207 AM EDT Sat May 1 2021 ...WIND ADVISORY HAS EXPIRED... The wind will continue to abate. Gusts into the 30s are still possible for a few hours. $$ PAZ004-017-024-033-011200- /O.CON.KCTP.FZ.W.0003.000000T0000Z-210501T1200Z/ Warren-Clearfield-Cambria-Somerset- Including the cities of Warren, DuBois, Clearfield, Johnstown, and Somerset 1207 AM EDT Sat May 1 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Low temperatures of 30 to 32 degrees are expected. * WHERE...Cambria, Clearfield and Somerset Counties. * WHEN...Early Saturday morning. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. 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. && $$ PAZ035-036-056>059-063>066-010600- /O.CON.KCTP.WI.Y.0003.000000T0000Z-210501T0600Z/ Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams- York-Lancaster- Including the cities of McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 1207 AM EDT Sat May 1 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT EARLY THIS MORNING... * WHAT...Northwest winds 15 to 20 mph with gusts 40 to 50 mph. * WHERE...Fulton, Franklin, Perry, Dauphin, Schuylkill, Lebanon, Cumberland, Adams, York and Lancaster Counties. * WHEN...Until 2 AM EDT Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. For high wind safety information, visit weather.gov/wind. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
984 WWUS71 KCTP 010606 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 206 AM EDT Sat May 1 2021 PAZ035-036-056>059-063>066-010715- /O.EXP.KCTP.WI.Y.0003.000000T0000Z-210501T0600Z/ Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams- York-Lancaster- Including the cities of McConnellsburg, Chambersburg, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 206 AM EDT Sat May 1 2021 ...WIND ADVISORY HAS EXPIRED... The wind will continue to abate. Gusts into the 30s are still possible for a few hours. $$ PAZ004-017-018-024-033-011200- /O.CON.KCTP.FZ.W.0003.000000T0000Z-210501T1200Z/ Warren-Clearfield-Northern Centre-Cambria-Somerset- Including the cities of Warren, DuBois, Clearfield, Philipsburg, Johnstown, and Somerset 206 AM EDT Sat May 1 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Low temperatures of 30 to 32 degrees are expected. * WHERE...Cambria, Clearfield and Somerset Counties. * WHEN...Early Saturday morning. * IMPACTS...Freeze conditions could kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 8:21 PM EDT | High Wind Warning | CTP | Adams, Cumberland, Dauphin, Franklin, Fulton, Lancaster and 4 more | 27 hr |
| Apr 29, 8:21 PM EDT | Wind Advisory | CTP | Adams, Bedford, Blair, Cambria, Cameron, Centre and 24 more | 30 hr |
Nearby
Freeze Warnings in Pennsylvania, 2021Every freeze 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.