Alert archive / Pennsylvania / Freeze Warnings in 2021
Freeze Warning 4, NWS State College, PA
NWS State College, PA issued this freeze warning at Nov 2, 2021, 2:47 AM EDT for 20 counties in Pennsylvania. It took effect at Nov 3, 2021, 12:00 AM EDT. It was in force for 9 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
- Nov 2, 2021, 2:47 AM EDT (06:47 UTC)
- In effect from
- Nov 3, 2021, 12:00 AM EDT
- Expired
- Nov 3, 2021, 9:00 AM EDT
- In force
- 9 hr
- Issued by
- NWS State College, PA
Counties Adams 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, Union County, PA, York County, PA
The radar
The State College radar (KCCX), 89 km from the middle of the area, began a volume at 06:50 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 00:00Z, 6.8 hours before the alert went out and 177 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
- 2265 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
181 WWUS71 KCTP 020647 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 247 AM EDT Tue Nov 2 2021 PAZ026>028-035-036-045-046-049>053-056>059-063>066-022200- /O.UPG.KCTP.FZ.A.0005.211103T0400Z-211103T1300Z/ /O.NEW.KCTP.FZ.W.0004.211103T0400Z-211103T1300Z/ Huntingdon-Mifflin-Juniata-Fulton-Franklin-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia- Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- Including the cities of Huntingdon, Mount Union, Lewistown, Mifflintown, McConnellsburg, Chambersburg, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 247 AM EDT Tue Nov 2 2021 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Portions of central Pennsylvania. * WHEN...From midnight tonight to 9 AM EDT Wednesday. * IMPACTS...Freeze conditions will kill sensitive vegetation. * ADDITIONAL DETAILS...This will likely bring and end to the growing season. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. 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. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
3 follow-up statements
877 WWUS71 KCTP 021714 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 114 PM EDT Tue Nov 2 2021 PAZ026>028-035-036-045-046-049>053-056>059-063>066-031300- /O.CON.KCTP.FZ.W.0004.211103T0400Z-211103T1300Z/ Huntingdon-Mifflin-Juniata-Fulton-Franklin-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia- Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- Including the cities of Huntingdon, Mount Union, Lewistown, Mifflintown, McConnellsburg, Chambersburg, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 114 PM EDT Tue Nov 2 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures between 28 and 31 expected. * WHERE...Portions of central Pennsylvania. * WHEN...From midnight tonight to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. * ADDITIONAL DETAILS...This will likely end the growing season. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
224 WWUS71 KCTP 030212 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 1012 PM EDT Tue Nov 2 2021 PAZ026>028-035-036-045-046-049>053-056>059-063>066-031300- /O.CON.KCTP.FZ.W.0004.211103T0400Z-211103T1300Z/ Huntingdon-Mifflin-Juniata-Fulton-Franklin-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia- Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- Including the cities of Huntingdon, Mount Union, Lewistown, Mifflintown, McConnellsburg, Chambersburg, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 1012 PM EDT Tue Nov 2 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures between 28 and 31 expected. * WHERE...Portions of central Pennsylvania. * WHEN...From midnight tonight to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. * ADDITIONAL DETAILS...This will likely end the growing season. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take protective measures now as freezing temperatures could damage or kill tender plants and vegetation. Potted plants should be brought inside. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
711 WWUS71 KCTP 031317 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 917 AM EDT Wed Nov 3 2021 PAZ026>028-035-036-045-046-049>053-056>059-063>066-031430- /O.EXP.KCTP.FZ.W.0004.000000T0000Z-211103T1300Z/ Huntingdon-Mifflin-Juniata-Fulton-Franklin-Southern Clinton- Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia- Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster- Including the cities of Huntingdon, Mount Union, Lewistown, Mifflintown, McConnellsburg, Chambersburg, Lock Haven, Williamsport, Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, Berwick, Newport, Harrisburg, Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, and Lancaster 917 AM EDT Wed Nov 3 2021 ...FREEZE WARNING HAS EXPIRED... It looks like all of the area except for perhaps the most-urban areas got down to freezing or colder overnight. This ends the growing season for all of Central PA. $$ 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 |
|---|---|---|---|---|
| Nov 2, 2:23 PM EDT | Winter Weather Advisory | CTP | McKean, Warren | 19 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.