Alert archive / West Virginia / Frost Advisories in 2021

Frost Advisory 3, NWS Charleston, WV

April 25, 202118 counties in West Virginia; 8 counties in Ohio

NWS Charleston, WV issued this frost advisory at Apr 25, 2021, 2:20 PM EDT for 18 counties in West Virginia; 8 counties in Ohio. It took effect at Apr 26, 2021, 2:00 AM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Apr 25, 2021, 2:20 PM EDT (18:20 UTC)
In effect from
Apr 26, 2021, 2:00 AM EDT
Expired
Apr 26, 2021, 9:00 AM EDT
In force
7 hr
Issued by
NWS Charleston, WV
All 26 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, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Jackson County, WV, Lewis County, WV, Mason 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 nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 6.3 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.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 12:00Z on 2021-04-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 2021-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
724 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

497 
WWUS71 KRLX 251820
NPWRLX

URGENT - WEATHER MESSAGE
National Weather Service Charleston WV
220 PM EDT Sun Apr 25 2021

WVZ525-260230-
/O.CON.KRLX.FZ.W.0007.210426T0600Z-210426T1300Z/
Northwest Randolph-
Including the city of Elkins
220 PM EDT Sun Apr 25 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT
MONDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Northwest Randolph County.

* WHEN...From 2 AM to 9 AM EDT Monday.

* 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.

&&

$$

OHZ066-067-075-076-083>086-WVZ007>011-016>020-028>032-039-040-521-
522-260230-
/O.NEW.KRLX.FR.Y.0003.210426T0600Z-210426T1300Z/
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-
Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie-
Doddridge-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur-Barbour-
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, Sutton, Gassaway, Burnsville, Glenville, 
Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, 
Belington, Holly River State, Webster Springs, and Cowen
220 PM EDT Sun Apr 25 2021

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT MONDAY...

* WHAT...Temperatures as low as 34 degrees will result in frost
  formation.

* WHERE...Portions of Southeast Ohio and Northern and Central West
  Virginia.

* WHEN...From 2 AM to 9 AM EDT Monday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if left
  uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Frost Advisory means that widespread frost is expected.
Sensitive outdoor plants may be killed if left uncovered.

&&

$$
3 follow-up statements
352 
WWUS71 KRLX 260209
NPWRLX

URGENT - WEATHER MESSAGE
National Weather Service Charleston WV
1009 PM EDT Sun Apr 25 2021

WVZ525-261015-
/O.CON.KRLX.FZ.W.0007.210426T0600Z-210426T1300Z/
Northwest Randolph-
Including the city of Elkins
1009 PM EDT Sun Apr 25 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT
MONDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Northwest Randolph County.

* WHEN...From 2 AM to 9 AM EDT Monday.

* 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>020-028>032-039-040-521-
522-261015-
/O.CON.KRLX.FR.Y.0003.210426T0600Z-210426T1300Z/
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-
Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie-
Doddridge-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur-Barbour-
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, Sutton, Gassaway, Burnsville, Glenville, 
Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, 
Belington, Holly River State, Webster Springs, and Cowen
1009 PM EDT Sun Apr 25 2021

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT
MONDAY...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Portions of southeast Ohio and central, northeast, 
  northern and western West Virginia.

* WHEN...From 2 AM to 9 AM EDT Monday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
294 
WWUS71 KRLX 260638
NPWRLX

URGENT - WEATHER MESSAGE
National Weather Service Charleston WV
238 AM EDT Mon Apr 26 2021

WVZ525-261300-
/O.CON.KRLX.FZ.W.0007.000000T0000Z-210426T1300Z/
Northwest Randolph-
Including the city of Elkins
238 AM EDT Mon Apr 26 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 31.

* WHERE...Northwest Randolph County.

* WHEN...Until 9 AM EDT this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. 

&&

$$

OHZ066-067-075-076-083>086-WVZ007>011-016>020-028>032-039-040-521-
522-261300-
/O.CON.KRLX.FR.Y.0003.000000T0000Z-210426T1300Z/
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-
Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie-
Doddridge-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur-Barbour-
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, Sutton, Gassaway, Burnsville, Glenville, 
Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, 
Belington, Holly River State, Webster Springs, and Cowen
238 AM EDT Mon Apr 26 2021

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Portions of southeast Ohio and central, northeast, 
  northern and western West Virginia.

* WHEN...Until 9 AM EDT this morning.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
740 
WWUS71 KRLX 261306
NPWRLX

URGENT - WEATHER MESSAGE
National Weather Service Charleston WV
906 AM EDT Mon Apr 26 2021

WVZ525-261415-
/O.EXP.KRLX.FZ.W.0007.000000T0000Z-210426T1300Z/
Northwest Randolph-
Including the city of Elkins
906 AM EDT Mon Apr 26 2021

...FREEZE WARNING HAS EXPIRED...

Temperatures have risen above freezing this morning and will
continue to increase into the upper 60s later this afternoon.

$$

OHZ066-067-075-076-083>086-WVZ007>011-016>020-028>032-039-040-521-
522-261415-
/O.EXP.KRLX.FR.Y.0003.000000T0000Z-210426T1300Z/
Perry-Morgan-Athens-Washington-Jackson OH-Vinton-Meigs-Gallia-
Mason-Jackson WV-Wood-Pleasants-Tyler-Roane-Wirt-Calhoun-Ritchie-
Doddridge-Braxton-Gilmer-Lewis-Harrison-Taylor-Upshur-Barbour-
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, Sutton, Gassaway, Burnsville, Glenville, 
Weston, Clarksburg, Bridgeport, Grafton, Buckhannon, Philippi, 
Belington, Holly River State, Webster Springs, and Cowen
906 AM EDT Mon Apr 26 2021

...FROST ADVISORY HAS EXPIRED...

Temperatures have risen above freezing this morning and will
continue to increase to near 70 later this afternoon.

$$

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 25, 2:51 AM EDTFreeze WarningRLXRandolph30 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.