Alert archive / Ohio / Frost Advisories in 2021
Frost Advisory 2, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this frost advisory at Apr 30, 2021, 12:59 PM EDT for 11 counties in Ohio; 8 counties in West Virginia; 6 counties in Pennsylvania. It took effect at May 1, 2021, 1:00 AM EDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Apr 30, 2021, 12:59 PM EDT (16:59 UTC)
- In effect from
- May 1, 2021, 1:00 AM EDT
- Expired
- May 1, 2021, 9:00 AM EDT
- In force
- 8 hr
- Issued by
- NWS Pittsburgh, PA
All 25 counties
Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Jefferson County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH, Tuscarawas County, OH, Allegheny County, PA, Beaver County, PA, Fayette County, PA, Greene County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Preston County, WV, Wetzel County, WV
The radar
The Pittsburgh radar (KPBZ), 61 km from the middle of the area, began a volume at 16:58 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, 5.0 hours before the alert went out and 60 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.
082 WWUS71 KPBZ 301659 NPWPBZ URGENT - WEATHER MESSAGE National Weather Service Pittsburgh PA 1259 PM EDT Fri Apr 30 2021 PAZ016-023-074-076-WVZ512>514-010315- /O.UPG.KPBZ.FZ.A.0003.210501T0500Z-210501T1300Z/ /O.NEW.KPBZ.FZ.W.0004.210501T0500Z-210501T1300Z/ /O.CON.KPBZ.WI.Y.0003.000000T0000Z-210501T0300Z/ Jefferson PA-Indiana-Higher Elevations of Westmoreland- Higher Elevations of Fayette-Eastern Preston-Western Tucker- Eastern Tucker- Including the cities of Punxsutawney, Brookville, Indiana, Ligonier, Donegal, Champion, Ohiopyle, Terra Alta, Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, Thomas, and Canaan Valley 1259 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 30 expected. For the Wind Advisory, west winds 20 to 30 mph with gusts up to 50 mph. * WHERE...In Pennsylvania, Jefferson PA, Indiana, Higher Elevations of Westmoreland and Higher Elevations of Fayette Counties. In West Virginia, Eastern Preston, Western Tucker and Eastern Tucker Counties. * WHEN...For the Freeze Warning, from 1 AM to 9 AM EDT Saturday. For the Wind Advisory, until 11 PM EDT this evening. * 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 and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ PAZ007>009-013>015-022-010315- /O.UPG.KPBZ.FZ.A.0003.210501T0500Z-210501T1300Z/ /O.NEW.KPBZ.FZ.W.0004.210501T0500Z-210501T1300Z/ Mercer-Venango-Forest-Lawrence-Butler-Clarion-Armstrong- Including the cities of Sharon, Hermitage, Grove City, Oil City, Franklin, Tionesta, New Castle, Ellwood City, Butler, Clarion, Kittanning, and Ford City 1259 PM EDT Fri Apr 30 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Mercer, Venango, Forest, Lawrence, Butler, Clarion and Armstrong Counties. * WHEN...From 1 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ WVZ510-511-010315- /O.NEW.KPBZ.FR.Y.0002.210501T0500Z-210501T1300Z/ /O.CON.KPBZ.WI.Y.0003.000000T0000Z-210501T0300Z/ Ridges of Eastern Monongalia and Northwestern Preston-Preston- Including the cities of Coopers Rock, Kingwood, and Bruceton Mills 1259 PM EDT Fri Apr 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM EDT THIS EVENING... ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... * WHAT...For the Frost Advisory, temperatures as low as 33 will result in frost formation. For the Wind Advisory, northwest winds 15 to 30 mph with gusts up to 50 mph. * WHERE...Ridges of Eastern Monongalia and Northwestern Preston and Preston Counties. * WHEN...For the Frost Advisory, from 1 AM to 9 AM EDT Saturday. For the Wind Advisory, until 11 PM EDT this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Take steps now to protect tender plants from the cold. && $$ OHZ039>041-048>050-057>059-068-069-PAZ020-021-029-031-073-075- WVZ001>004-012-021-509-010315- /O.NEW.KPBZ.FR.Y.0002.210501T0500Z-210501T1300Z/ Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny- Washington-Greene-Westmoreland-Fayette-Hancock-Brooke-Ohio- Marshall-Wetzel-Marion-Monongalia- Including the cities of New Philadelphia, Dover, Carrollton, Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, New Martinsville, Fairmont, and Morgantown 1259 PM EDT Fri Apr 30 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of southwest and western Pennsylvania, east central Ohio and northern and the northern panhandle of West Virginia. * WHEN...From 1 AM to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
3 follow-up statements
550 WWUS71 KPBZ 010113 NPWPBZ URGENT - WEATHER MESSAGE National Weather Service Pittsburgh PA 913 PM EDT Fri Apr 30 2021 PAZ016-023-074-076-WVZ512>514-010915- /O.CAN.KPBZ.WI.Y.0003.000000T0000Z-210501T0300Z/ /O.CON.KPBZ.FZ.W.0004.210501T0500Z-210501T1300Z/ Jefferson PA-Indiana-Higher Elevations of Westmoreland- Higher Elevations of Fayette-Eastern Preston-Western Tucker- Eastern Tucker- Including the cities of Punxsutawney, Brookville, Indiana, Ligonier, Donegal, Champion, Ohiopyle, Terra Alta, Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, Thomas, and Canaan Valley 913 PM EDT Fri Apr 30 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... ...WIND ADVISORY IS CANCELLED... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In Pennsylvania, Indiana, Higher Elevations of Westmoreland, Higher Elevations of Fayette and Jefferson PA Counties. In West Virginia, Western Tucker, Eastern Preston and Eastern Tucker Counties. * WHEN...From 1 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ WVZ510-511-010915- /O.CAN.KPBZ.WI.Y.0003.000000T0000Z-210501T0300Z/ /O.CON.KPBZ.FR.Y.0002.210501T0500Z-210501T1300Z/ Ridges of Eastern Monongalia and Northwestern Preston-Preston- Including the cities of Coopers Rock, Kingwood, and Bruceton Mills 913 PM EDT Fri Apr 30 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... ...WIND ADVISORY IS CANCELLED... * WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Preston and Ridges of Eastern Monongalia and Northwestern Preston Counties. * WHEN...From 1 AM to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PAZ007>009-013>015-022-010915- /O.CON.KPBZ.FZ.W.0004.210501T0500Z-210501T1300Z/ Mercer-Venango-Forest-Lawrence-Butler-Clarion-Armstrong- Including the cities of Sharon, Hermitage, Grove City, Oil City, Franklin, Tionesta, New Castle, Ellwood City, Butler, Clarion, Kittanning, and Ford City 913 PM EDT Fri Apr 30 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... * WHAT...Sub-freezing temperatures as low as 31 expected. * WHERE...Armstrong, Butler, Clarion, Lawrence, Mercer, Forest and Venango Counties. * WHEN...From 1 AM to 9 AM EDT Saturday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ OHZ039>041-048>050-057>059-068-069-PAZ020-021-029-031-073-075- WVZ001>004-012-021-509-010915- /O.CON.KPBZ.FR.Y.0002.210501T0500Z-210501T1300Z/ Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny- Washington-Greene-Westmoreland-Fayette-Hancock-Brooke-Ohio- Marshall-Wetzel-Marion-Monongalia- Including the cities of New Philadelphia, Dover, Carrollton, Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, New Martinsville, Fairmont, and Morgantown 913 PM EDT Fri Apr 30 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT SATURDAY... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of southwest and western Pennsylvania, east central Ohio and northern and the northern panhandle of West Virginia. * WHEN...From 1 AM to 9 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
205 WWUS71 KPBZ 010754 NPWPBZ URGENT - WEATHER MESSAGE National Weather Service Pittsburgh PA 354 AM EDT Sat May 1 2021 PAZ007>009-013>016-022-023-074-076-WVZ512>514-011300- /O.CON.KPBZ.FZ.W.0004.000000T0000Z-210501T1300Z/ Mercer-Venango-Forest-Lawrence-Butler-Clarion-Jefferson PA- Armstrong-Indiana-Higher Elevations of Westmoreland- Higher Elevations of Fayette-Eastern Preston-Western Tucker- Eastern Tucker- Including the cities of Sharon, Hermitage, Grove City, Oil City, Franklin, Tionesta, New Castle, Ellwood City, Butler, Clarion, Punxsutawney, Brookville, Kittanning, Ford City, Indiana, Ligonier, Donegal, Champion, Ohiopyle, Terra Alta, Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, Thomas, and Canaan Valley 354 AM EDT Sat May 1 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...In Pennsylvania, Indiana, Higher Elevations of Westmoreland, Higher Elevations of Fayette and Jefferson PA Counties. In West Virginia, Western Tucker, Eastern Preston and Eastern Tucker Counties. * WHEN...Until 9 AM EDT. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ OHZ039>041-048>050-057>059-068-069-PAZ020-021-029-031-073-075- WVZ001>004-012-021-509>511-011300- /O.CON.KPBZ.FR.Y.0002.000000T0000Z-210501T1300Z/ Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny- Washington-Greene-Westmoreland-Fayette-Hancock-Brooke-Ohio- Marshall-Wetzel-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Including the cities of New Philadelphia, Dover, Carrollton, Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, and Bruceton Mills 354 AM EDT Sat May 1 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...Portions of southwest and western Pennsylvania, east central Ohio and northern and the northern panhandle of West Virginia. * WHEN...Until 9 AM. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
539 WWUS71 KPBZ 011303 NPWPBZ URGENT - WEATHER MESSAGE National Weather Service Pittsburgh PA 903 AM EDT Sat May 1 2021 PAZ007>009-013>016-022-023-074-076-WVZ512>514-011415- /O.EXP.KPBZ.FZ.W.0004.000000T0000Z-210501T1300Z/ Mercer-Venango-Forest-Lawrence-Butler-Clarion-Jefferson PA- Armstrong-Indiana-Higher Elevations of Westmoreland- Higher Elevations of Fayette-Eastern Preston-Western Tucker- Eastern Tucker- Including the cities of Sharon, Hermitage, Grove City, Oil City, Franklin, Tionesta, New Castle, Ellwood City, Butler, Clarion, Punxsutawney, Brookville, Kittanning, Ford City, Indiana, Ligonier, Donegal, Champion, Ohiopyle, Terra Alta, Rowlesburg, Hazelton, Parsons, Hendricks, Saint George, Davis, Thomas, and Canaan Valley 903 AM EDT Sat May 1 2021 ...FREEZE WARNING HAS EXPIRED... Temperatures across the region have risen above freezing and the Freeze Warning will be allowed to expire. $$ OHZ039>041-048>050-057>059-068-069-PAZ020-021-029-031-073-075- WVZ001>004-012-021-509>511-011415- /O.EXP.KPBZ.FR.Y.0002.000000T0000Z-210501T1300Z/ Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Beaver-Allegheny- Washington-Greene-Westmoreland-Fayette-Hancock-Brooke-Ohio- Marshall-Wetzel-Marion-Monongalia- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Including the cities of New Philadelphia, Dover, Carrollton, Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Aliquippa, Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, New Martinsville, Fairmont, Morgantown, Coopers Rock, Kingwood, and Bruceton Mills 903 AM EDT Sat May 1 2021 ...FROST ADVISORY HAS EXPIRED... Temperatures across the region are quickly rising and the Frost Advisory will be allowed to expire. $$
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 30, 12:59 AM EDT | Freeze Watch | PBZ | Preston, Tucker | 12 hr |
| Apr 30, 12:59 AM EDT | Wind Advisory | PBZ | Monongalia, Preston, Tucker | 20 hr |
| Apr 30, 12:59 PM EDT | Freeze Warning | PBZ | Preston, Tucker | 20 hr |
Nearby
Frost Advisories in Ohio, 2021Frost Advisories in West Virginia, 2021Frost 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.