Alert archive / Pennsylvania / Frost Advisories in 2021
Frost Advisory 2, NWS State College, PA
NWS State College, PA issued this frost advisory at May 10, 2021, 6:33 PM EDT for 11 counties in Pennsylvania. It took effect at May 11, 2021, 1:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- May 10, 2021, 6:33 PM EDT (22:33 UTC)
- In effect from
- May 11, 2021, 1:00 AM EDT
- Expired
- May 11, 2021, 8:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS State College, PA
Counties Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Elk County, PA, Lycoming County, PA, McKean County, PA, Potter County, PA, Sullivan County, PA, Tioga County, PA, Warren County, PA
The radar
The State College radar (KCCX), 59 km from the middle of the area, began a volume at 22:34 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
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.6 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
- 1668 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
600 WWUS71 KCTP 102233 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 633 PM EDT Mon May 10 2021 PAZ004>006-010>012-017-018-037-041-042-111045- /O.NEW.KCTP.FR.Y.0002.210511T0500Z-210511T1200Z/ Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Tioga-Northern Lycoming-Sullivan- Including the cities of Warren, Bradford, Coudersport, St. Marys, Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, Mansfield, Wellsboro, Trout Run, and Laporte 633 PM EDT Mon May 10 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT TUESDAY... * WHAT...Temperatures in the low to mid 30s will result in frost formation. * WHERE...North central Pennsylvania. * WHEN...From 1 AM to 8 AM EDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...The frost will occur mainly in valley locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants and vegetation from the cold. 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. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
2 follow-up statements
414 WWUS71 KCTP 110916 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 516 AM EDT Tue May 11 2021 PAZ004>006-010>012-017-018-037-041-042-111200- /O.CON.KCTP.FR.Y.0002.000000T0000Z-210511T1200Z/ Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Tioga-Northern Lycoming-Sullivan- Including the cities of Warren, Bradford, Coudersport, St. Marys, Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, Mansfield, Wellsboro, Trout Run, and Laporte 516 AM EDT Tue May 11 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING... * WHAT...Temperatures in the low to mid 30s will result in frost formation. * WHERE...North central Pennsylvania. * WHEN...Until 8 AM EDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. * ADDITIONAL DETAILS...The frost will occur mainly in valley locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants and vegetation from the cold. Potted plants should be brought inside. The latest forecast information can be found on the NWS State College Facebook page and Twitter @NWSStateCollege, or on the web at weather.gov/ctp. && $$ For more information from the National Weather Service visit http://weather.gov/ctp
430 WWUS71 KCTP 111205 NPWCTP URGENT - WEATHER MESSAGE National Weather Service State College PA 805 AM EDT Tue May 11 2021 PAZ004>006-010>012-017-018-037-041-042-111315- /O.EXP.KCTP.FR.Y.0002.000000T0000Z-210511T1200Z/ Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield- Northern Centre-Tioga-Northern Lycoming-Sullivan- Including the cities of Warren, Bradford, Coudersport, St. Marys, Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, Mansfield, Wellsboro, Trout Run, and Laporte 805 AM EDT Tue May 11 2021 ...FROST ADVISORY HAS EXPIRED... $$ For more information from the National Weather Service visit http://weather.gov/ctp
Nearby
Frost Advisories in Pennsylvania, 2021Every frost advisory 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.