Alert archive / Tennessee / Frost Advisories in 2021
Frost Advisory 1, NWS Nashville, TN
NWS Nashville, TN issued this frost advisory at Apr 3, 2021, 2:09 PM CDT for 22 counties in Tennessee. It took effect at Apr 4, 2021, 3:00 AM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Apr 3, 2021, 2:09 PM CDT (19:09 UTC)
- In effect from
- Apr 4, 2021, 3:00 AM CDT
- Expired
- Apr 4, 2021, 8:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Nashville, TN
All 22 counties
Bedford County, TN, Cannon County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, DeKalb County, TN, Fentress County, TN, Giles County, TN, Grundy County, TN, Jackson County, TN, Macon County, TN, Marshall County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Rutherford County, TN, Smith County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, White County, TN, Wilson County, TN
The radar
The Nashville radar (KOHX), 71 km from the middle of the area, began a volume at 19:13 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 12:00Z, 7.2 hours before the alert went out and 70 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
- 2403 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
950 WWUS74 KOHX 031909 NPWOHX URGENT - WEATHER MESSAGE National Weather Service Nashville TN 209 PM CDT Sat Apr 3 2021 TNZ009>011-028>034-061>066-075-077>080-095-040900- /O.NEW.KOHX.FR.Y.0001.210404T0800Z-210404T1300Z/ Macon-Clay-Pickett-Wilson-Trousdale-Smith-Jackson-Putnam-Overton- Fentress-Marshall-Rutherford-Cannon-De Kalb-White-Cumberland- Bedford-Coffee-Warren-Grundy-Van Buren-Giles- Including the cities of Lafayette, Celina, Byrdstown, Lebanon, Mount Juliet, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Lewisburg, Murfreesboro, Smyrna, La Vergne, Woodbury, Smithville, Sparta, Crossville, Shelbyville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, Spencer, and Pulaski 209 PM CDT Sat Apr 3 2021 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT SUNDAY... * WHAT...Temperatures as low as 34 to 37 will result in frost formation. * WHERE...the Eastern Half of Middle Tennessee. * WHEN...From 3 AM to 8 AM CDT Sunday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ 21
1 follow-up statement
338 WWUS74 KOHX 040713 NPWOHX URGENT - WEATHER MESSAGE National Weather Service Nashville TN 213 AM CDT Sun Apr 4 2021 TNZ009>011-028>034-061>066-075-077>080-095-041300- /O.CON.KOHX.FR.Y.0001.210404T0800Z-210404T1300Z/ Macon-Clay-Pickett-Wilson-Trousdale-Smith-Jackson-Putnam-Overton- Fentress-Marshall-Rutherford-Cannon-De Kalb-White-Cumberland- Bedford-Coffee-Warren-Grundy-Van Buren-Giles- Including the cities of Lafayette, Celina, Byrdstown, Lebanon, Mount Juliet, Hartsville, Carthage, South Carthage, Gordonsville, Gainesboro, Cookeville, Livingston, Jamestown, Allardt, Lewisburg, Murfreesboro, Smyrna, La Vergne, Woodbury, Smithville, Sparta, Crossville, Shelbyville, Tullahoma, Manchester, McMinnville, Altamont, Coalmont, Spencer, and Pulaski 213 AM CDT Sun Apr 4 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING... * WHAT...Temperatures as low as 34 to 37 will result in frost formation. * WHERE...The Eastern Half of Middle Tennessee. * WHEN...Through 8 AM CDT. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 9:27 PM CDT | River Flood Advisory | OHX | Hickman, Humphreys, Perry | 52 hr |
| Apr 3, 3:15 AM CDT | River Flood Advisory | OHX | Hickman | 14 hr |
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.