Alert archive / West Virginia / Frost Advisories in 2021
Frost Advisory 5, NWS Charleston, WV
NWS Charleston, WV issued this frost advisory at May 11, 2021, 12:12 PM EDT for 20 counties in West Virginia; 8 counties in Ohio. It took effect at May 12, 2021, 1:00 AM EDT. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- May 11, 2021, 12:12 PM EDT (16:12 UTC)
- In effect from
- May 12, 2021, 1:00 AM EDT
- Expired
- May 12, 2021, 9:00 AM EDT
- In force
- 8 hr
- Issued by
- NWS Charleston, WV
All 28 counties
Athens County, OH, Gallia County, OH, Jackson County, OH, Meigs County, OH, Morgan County, OH, Perry County, OH, Vinton County, OH, Washington County, OH, Barbour County, WV, Braxton County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Lewis County, WV, Mason County, WV, Nicholas County, WV, Pleasants County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tyler County, WV, Upshur County, WV, Webster County, WV, Wirt County, WV, Wood County, WV
The radar
The Charleston,WV radar (KRLX), 92 km from the middle of the area, began a volume at 16:14 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, 4.2 hours before the alert went out and 180 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
- 1116 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
172 WWUS71 KRLX 111612 NPWRLX URGENT - WEATHER MESSAGE National Weather Service Charleston WV 1212 PM EDT Tue May 11 2021 WVZ523-525-526-120200- /O.UPG.KRLX.FZ.A.0006.210512T0500Z-210512T1300Z/ /O.NEW.KRLX.FZ.W.0011.210512T0500Z-210512T1300Z/ Northwest Pocahontas-Northwest Randolph-Southeast Randolph- Including the cities of Snowshoe, Elkins, and Harman 1212 PM EDT Tue May 11 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Northwest Pocahontas, Northwest Randolph and Southeast Randolph Counties. * WHEN...From 1 AM to 9 AM EDT Wednesday. * 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. && $$ WVZ524-120200- /O.NEW.KRLX.FZ.W.0011.210512T0500Z-210512T1300Z/ Southeast Pocahontas- Including the city of Marlinton 1212 PM EDT Tue May 11 2021 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as 35 expected. * WHERE...Southeast Pocahontas County. * WHEN...From 1 AM to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ OHZ066-067-075-076-083>086-WVZ007>011-016>020-027>032-039-040- 519>522-120200- /O.NEW.KRLX.FR.Y.0005.210512T0500Z-210512T1300Z/ Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia- Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie- Doddridge-Clay-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur- Barbour-Northwest Nicholas-Southeast Nicholas-Northwest Webster- Southeast Webster- Including the cities of New Lexington, Crooksville, Somerset, McConnelsville, Stockport, Athens, Marietta, Belpre, Jackson, Wellston, Oak Hill, McArthur, Hamden, Pomeroy, Gallipolis, Point Pleasant, New Haven, Ravenswood, Ripley, Parkersburg, Vienna, St. Marys, Belmont, Paden City, Sistersville, Middlebourne, Spencer, Elizabeth, Grantsville, Harrisville, Pennsboro, West Union, Clay, Sutton, Gassaway, Burnsville, Glenville, Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, Belington, Summersville, Craigsville, Birch River, Richwood, Holly River State, Webster Springs, and Cowen 1212 PM EDT Tue May 11 2021 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... * WHAT...Temperatures as low as 35 will result in frost formation. * WHERE...Portions of southeast Ohio and central, northeast, northern, southeast and western West Virginia. * WHEN...From 1 AM to 9 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ ROCHE
4 follow-up statements
586 WWUS71 KRLX 111913 NPWRLX URGENT - WEATHER MESSAGE National Weather Service Charleston WV 313 PM EDT Tue May 11 2021 WVZ523>526-120315- /O.CON.KRLX.FZ.W.0011.210512T0500Z-210512T1300Z/ Northwest Pocahontas-Southeast Pocahontas-Northwest Randolph- Southeast Randolph- Including the cities of Snowshoe, Marlinton, Elkins, and Harman 313 PM EDT Tue May 11 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as upper 20s expected. * WHERE...Southeast Pocahontas, Southeast Randolph, Northwest Pocahontas and Northwest Randolph Counties. * WHEN...From 1 AM to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ OHZ066-067-075-076-083>086-WVZ007>011-016>020-027>032-039-040- 519>522-120315- /O.CON.KRLX.FR.Y.0005.210512T0500Z-210512T1300Z/ Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia- Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie- Doddridge-Clay-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur- Barbour-Northwest Nicholas-Southeast Nicholas-Northwest Webster- Southeast Webster- Including the cities of New Lexington, Crooksville, Somerset, McConnelsville, Stockport, Athens, Marietta, Belpre, Jackson, Wellston, Oak Hill, McArthur, Hamden, Pomeroy, Gallipolis, Point Pleasant, New Haven, Ravenswood, Ripley, Parkersburg, Vienna, St. Marys, Belmont, Paden City, Sistersville, Middlebourne, Spencer, Elizabeth, Grantsville, Harrisville, Pennsboro, West Union, Clay, Sutton, Gassaway, Burnsville, Glenville, Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, Belington, Summersville, Craigsville, Birch River, Richwood, Holly River State, Webster Springs, and Cowen 313 PM EDT Tue May 11 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM EDT WEDNESDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of southeast Ohio and central, northeast, northern, southeast and western West Virginia. * WHEN...From 1 AM to 9 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
274 WWUS71 KRLX 120203 NPWRLX URGENT - WEATHER MESSAGE National Weather Service Charleston WV 1003 PM EDT Tue May 11 2021 WVZ523>526-121015- /O.CON.KRLX.FZ.W.0011.210512T0500Z-210512T1300Z/ Northwest Pocahontas-Southeast Pocahontas-Northwest Randolph- Southeast Randolph- Including the cities of Snowshoe, Marlinton, Elkins, and Harman 1003 PM EDT Tue May 11 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM UNTIL 9 AM EDT WEDNESDAY... * WHAT...Sub-freezing temperatures as low as upper 20s expected. * WHERE...Southeast Pocahontas, Southeast Randolph, Northwest Pocahontas and Northwest Randolph Counties. * WHEN...From 1 AM to 9 AM EDT Wednesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ OHZ066-067-075-076-083>086-WVZ007>011-016>020-027>032-039-040- 519>522-121015- /O.CON.KRLX.FR.Y.0005.210512T0500Z-210512T1300Z/ Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia- Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie- Doddridge-Clay-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur- Barbour-Northwest Nicholas-Southeast Nicholas-Northwest Webster- Southeast Webster- Including the cities of New Lexington, Crooksville, Somerset, McConnelsville, Stockport, Athens, Marietta, Belpre, Jackson, Wellston, Oak Hill, McArthur, Hamden, Pomeroy, Gallipolis, Point Pleasant, New Haven, Ravenswood, Ripley, Parkersburg, Vienna, St. Marys, Belmont, Paden City, Sistersville, Middlebourne, Spencer, Elizabeth, Grantsville, Harrisville, Pennsboro, West Union, Clay, Sutton, Gassaway, Burnsville, Glenville, Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, Belington, Summersville, Craigsville, Birch River, Richwood, Holly River State, Webster Springs, and Cowen 1003 PM EDT Tue May 11 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM UNTIL 9 AM EDT WEDNESDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of southeast Ohio and central, northeast, northern, southeast and western West Virginia. * WHEN...From 1 AM to 9 AM EDT Wednesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
191 WWUS71 KRLX 120758 NPWRLX URGENT - WEATHER MESSAGE National Weather Service Charleston WV 358 AM EDT Wed May 12 2021 WVZ523>526-121600- /O.NEW.KRLX.FZ.A.0007.210513T0500Z-210513T1300Z/ /O.CON.KRLX.FZ.W.0011.000000T0000Z-210512T1300Z/ Northwest Pocahontas-Southeast Pocahontas-Northwest Randolph- Southeast Randolph- Including the cities of Snowshoe, Marlinton, Elkins, and Harman 358 AM EDT Wed May 12 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY MORNING... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as the upper 20s. For the Freeze Watch, sub-freezing temperatures as low as around 30 possible. * WHERE...Northwest Pocahontas, Southeast Pocahontas, Northwest Randolph and Southeast Randolph Counties. * WHEN...For the Freeze Warning, until 9 AM EDT this morning. For the Freeze Watch, from late tonight into Thursday morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...Frost is not likely this morning despite the sub-freezing temperatures, but frost is likely to form overnight tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ OHZ066-067-075-076-083>086-WVZ007>011-016>020-027>032-039-040- 519>522-121300- /O.CON.KRLX.FR.Y.0005.000000T0000Z-210512T1300Z/ Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia- Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie- Doddridge-Clay-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur- Barbour-Northwest Nicholas-Southeast Nicholas-Northwest Webster- Southeast Webster- Including the cities of New Lexington, Crooksville, Somerset, McConnelsville, Stockport, Athens, Marietta, Belpre, Jackson, Wellston, Oak Hill, McArthur, Hamden, Pomeroy, Gallipolis, Point Pleasant, New Haven, Ravenswood, Ripley, Parkersburg, Vienna, St. Marys, Belmont, Paden City, Sistersville, Middlebourne, Spencer, Elizabeth, Grantsville, Harrisville, Pennsboro, West Union, Clay, Sutton, Gassaway, Burnsville, Glenville, Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, Belington, Summersville, Craigsville, Birch River, Richwood, Holly River State, Webster Springs, and Cowen 358 AM EDT Wed May 12 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as the lower 30s will result in frost formation. * WHERE...Portions of southeast Ohio, and portions of northern and central West Virginia. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Tender plants should be kept protected from the cold this morning. && $$ TRM
823 WWUS71 KRLX 121244 NPWRLX URGENT - WEATHER MESSAGE National Weather Service Charleston WV 844 AM EDT Wed May 12 2021 WVZ523>526-122045- /O.EXP.KRLX.FZ.W.0011.000000T0000Z-210512T1300Z/ /O.CON.KRLX.FZ.A.0007.210513T0500Z-210513T1300Z/ Northwest Pocahontas-Southeast Pocahontas-Northwest Randolph- Southeast Randolph- Including the cities of Snowshoe, Marlinton, Elkins, and Harman 844 AM EDT Wed May 12 2021 ...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY MORNING... ...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 32 possible. * WHERE...Southeast Pocahontas, Southeast Randolph, Northwest Pocahontas and Northwest Randolph Counties. * WHEN...From late tonight through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ OHZ066-067-075-076-083>086-WVZ007>011-016>020-027>032-039-040- 519>522-121345- /O.EXP.KRLX.FR.Y.0005.000000T0000Z-210512T1300Z/ Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia- Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie- Doddridge-Clay-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur- Barbour-Northwest Nicholas-Southeast Nicholas-Northwest Webster- Southeast Webster- Including the cities of New Lexington, Crooksville, Somerset, McConnelsville, Stockport, Athens, Marietta, Belpre, Jackson, Wellston, Oak Hill, McArthur, Hamden, Pomeroy, Gallipolis, Point Pleasant, New Haven, Ravenswood, Ripley, Parkersburg, Vienna, St. Marys, Belmont, Paden City, Sistersville, Middlebourne, Spencer, Elizabeth, Grantsville, Harrisville, Pennsboro, West Union, Clay, Sutton, Gassaway, Burnsville, Glenville, Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, Belington, Summersville, Craigsville, Birch River, Richwood, Holly River State, Webster Springs, and Cowen 844 AM EDT Wed May 12 2021 ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... Temperatures have climbed into the lower 40s this morning. $$
The office that day
Everything else NWS Charleston, WV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 8:15 PM EDT | Freeze Watch | RLX | Pocahontas, Randolph | 16 hr |
| May 11, 12:12 PM EDT | Freeze Warning | RLX | Pocahontas, Randolph | 21 hr |
Nearby
Frost Advisories in West Virginia, 2021Frost Advisories in Ohio, 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.