Alert archive / Tennessee / Frost Advisories in 2021
Frost Advisory 4, NWS Nashville, TN
NWS Nashville, TN issued this frost advisory at Apr 22, 2021, 2:20 AM CDT for 17 counties in Tennessee. It took effect at Apr 23, 2021, 12:00 AM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 22, 2021, 2:20 AM CDT (07:20 UTC)
- In effect from
- Apr 23, 2021, 12:00 AM CDT
- Expired
- Apr 23, 2021, 7:00 AM CDT
- In force
- 7 hr
- Issued by
- NWS Nashville, TN
Counties Cannon County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Grundy County, TN, Jackson County, TN, Macon County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Smith County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, White County, TN
The radar
The Nashville radar (KOHX), 87 km from the middle of the area, began a volume at 07:22 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
Nashville Metro, TN (KBNA), launched 00:00Z, 7.3 hours before the alert went out and 88 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2033 m above ground
- 0-6 km bulk shear
- 102 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
842 WWUS74 KOHX 220720 NPWOHX URGENT - WEATHER MESSAGE National Weather Service Nashville TN 220 AM CDT Thu Apr 22 2021 TNZ009>011-029>034-063>066-077>080-221315- /O.NEW.KOHX.FR.Y.0004.210423T0500Z-210423T1200Z/ /O.CON.KOHX.FZ.W.0003.000000T0000Z-210422T1300Z/ Macon-Clay-Pickett-Trousdale-Smith-Jackson-Putnam-Overton- Fentress-Cannon-De Kalb-White-Cumberland-Coffee-Warren-Grundy- Van Buren- Including the cities of Lafayette, Celina, Byrdstown, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Woodbury, Smithville, Sparta, Crossville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, and Spencer 220 AM CDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT FRIDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 28. For the Frost Advisory, temperatures as low as 34 will result in frost formation. * WHERE...Eastern half of Middle Tennessee. * WHEN...For the Freeze Warning, until 8 AM CDT this morning. For the Frost Advisory, from midnight tonight to 7 AM CDT Friday. * 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. && $$ TNZ008-028-062-075-221300- /O.CON.KOHX.FZ.W.0003.000000T0000Z-210422T1300Z/ Sumner-Wilson-Rutherford-Bedford- Including the cities of Hendersonville, Gallatin, Goodlettsville, Lebanon, Mount Juliet, Murfreesboro, Smyrna, La Vergne, and Shelbyville 220 AM CDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Sub-freezing temperatures in the low 30s expected, with upper 20s possible on the Cumberland Plateau. * WHERE...Eastern half of Middle Tennessee. * WHEN...Until 8 AM CDT today. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ TNZ005>007-023>027-056>061-093>095-221300- /O.CON.KOHX.FR.Y.0003.000000T0000Z-210422T1300Z/ Stewart-Montgomery-Robertson-Houston-Humphreys-Dickson-Cheatham- Davidson-Perry-Hickman-Lewis-Williamson-Maury-Marshall-Wayne- Lawrence-Giles- Including the cities of Dover, Clarksville, Springfield, Erin, Tennessee Ridge, Waverly, New Johnsonville, McEwen, Dickson, Ashland City, Kingston Springs, Nashville, Linden, Lobelville, Centerville, Hohenwald, Franklin, Brentwood, Columbia, Lewisburg, Clifton, Waynesboro, Lawrenceburg, and Pulaski 220 AM CDT Thu Apr 22 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Western half of Middle Tennessee. * WHEN...Until 8 AM CDT today. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
3 follow-up statements
687 WWUS74 KOHX 221310 NPWOHX URGENT - WEATHER MESSAGE National Weather Service Nashville TN 810 AM CDT Thu Apr 22 2021 TNZ009>011-029>034-063>066-077>080-222000- /O.EXP.KOHX.FZ.W.0003.000000T0000Z-210422T1300Z/ /O.CON.KOHX.FR.Y.0004.210423T0500Z-210423T1200Z/ Macon-Clay-Pickett-Trousdale-Smith-Jackson-Putnam-Overton- Fentress-Cannon-De Kalb-White-Cumberland-Coffee-Warren-Grundy- Van Buren- Including the cities of Lafayette, Celina, Byrdstown, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Woodbury, Smithville, Sparta, Crossville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, and Spencer 810 AM CDT Thu Apr 22 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT FRIDAY... ...FREEZE WARNING HAS EXPIRED... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Eastern Portion of Middle Tennessee just west of and across Cumberland Plateau Region. * WHEN...For Frost Advisory, midnight tonight to 7 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ TNZ008-028-062-075-221415- /O.EXP.KOHX.FZ.W.0003.000000T0000Z-210422T1300Z/ Sumner-Wilson-Rutherford-Bedford- Including the cities of Hendersonville, Gallatin, Goodlettsville, Lebanon, Mount Juliet, Murfreesboro, Smyrna, La Vergne, and Shelbyville 810 AM CDT Thu Apr 22 2021 ...FREEZE WARNING HAS EXPIRED... The freeze warning for these locations has expired. $$ TNZ005>007-023>027-056>061-093>095-221415- /O.EXP.KOHX.FR.Y.0003.000000T0000Z-210422T1300Z/ Stewart-Montgomery-Robertson-Houston-Humphreys-Dickson-Cheatham- Davidson-Perry-Hickman-Lewis-Williamson-Maury-Marshall-Wayne- Lawrence-Giles- Including the cities of Dover, Clarksville, Springfield, Erin, Tennessee Ridge, Waverly, New Johnsonville, McEwen, Dickson, Ashland City, Kingston Springs, Nashville, Linden, Lobelville, Centerville, Hohenwald, Franklin, Brentwood, Columbia, Lewisburg, Clifton, Waynesboro, Lawrenceburg, and Pulaski 810 AM CDT Thu Apr 22 2021 ...FROST ADVISORY HAS EXPIRED... The frost advisory for these locations has expired. $$ JB Wright
986 WWUS74 KOHX 221331 NPWOHX URGENT - WEATHER MESSAGE National Weather Service Nashville TN 831 AM CDT Thu Apr 22 2021 TNZ009>011-029>034-063>066-077>080-222000- /O.CON.KOHX.FR.Y.0004.210423T0500Z-210423T1200Z/ Macon-Clay-Pickett-Trousdale-Smith-Jackson-Putnam-Overton- Fentress-Cannon-De Kalb-White-Cumberland-Coffee-Warren-Grundy- Van Buren- Including the cities of Lafayette, Celina, Byrdstown, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Woodbury, Smithville, Sparta, Crossville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, and Spencer 831 AM CDT Thu Apr 22 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT FRIDAY... * WHAT...Temperatures as low as 36 will result in frost formation. * WHERE...Eastern Portion of Middle Tennessee just west of and across Cumberland Plateau Region. * WHEN...Midnight tonight to 7 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ JB Wright
328 WWUS74 KOHX 221940 NPWOHX URGENT - WEATHER MESSAGE National Weather Service Nashville TN 240 PM CDT Thu Apr 22 2021 TNZ009>011-029>034-063>066-077>080-231200- /O.CON.KOHX.FR.Y.0004.210423T0500Z-210423T1200Z/ Macon-Clay-Pickett-Trousdale-Smith-Jackson-Putnam-Overton- Fentress-Cannon-De Kalb-White-Cumberland-Coffee-Warren-Grundy- Van Buren- Including the cities of Lafayette, Celina, Byrdstown, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Woodbury, Smithville, Sparta, Crossville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, and Spencer 240 PM CDT Thu Apr 22 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT FRIDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Locations across Eastern Portion of Middle Tennessee just west of and across Cumberland Plateau Region. * WHEN...Midnight tonight to 7 AM CDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ JB Wright
Nearby
Frost Advisories in Tennessee, 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.