Alert archive / North Carolina / Frost Advisories in 2021
Frost Advisory 2, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this frost advisory at Apr 15, 2021, 2:08 PM EDT for 6 counties in North Carolina. It took effect at Apr 16, 2021, 2:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 15, 2021, 2:08 PM EDT (18:08 UTC)
- In effect from
- Apr 16, 2021, 2:00 AM EDT
- Expired
- Apr 16, 2021, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Greenville-Spartanburg, SC
Counties Graham County, NC, Haywood County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, Swain County, NC
The radar
The Knoxville radar (KMRX), 81 km from the middle of the area, began a volume at 18:08 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.1 hours before the alert went out and 257 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
- 626 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
037 WWUS72 KGSP 151808 NPWGSP URGENT - WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 208 PM EDT Thu Apr 15 2021 NCZ048-051-052-058-059-062-160400- /O.NEW.KGSP.FR.Y.0002.210416T0600Z-210416T1300Z/ Madison-Swain-Haywood-Graham-Northern Jackson-Macon- Including the cities of Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Alarka, Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville, Stecoah, Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, and Highlands 208 PM EDT Thu Apr 15 2021 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT FRIDAY... * WHAT...Temperatures as low as 33 to 35 degrees, along with light winds, will result in areas of frost formation. * WHERE...Madison, Swain, Haywood, Graham, Northern Jackson and Macon Counties. * WHEN...From 2 AM to 9 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ HG
3 follow-up statements
117 WWUS72 KGSP 160241 NPWGSP URGENT - WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 1041 PM EDT Thu Apr 15 2021 NCZ048-051-052-058-059-062-161045- /O.CON.KGSP.FR.Y.0002.210416T0600Z-210416T1300Z/ Madison-Swain-Haywood-Graham-Northern Jackson-Macon- Including the cities of Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Alarka, Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville, Stecoah, Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, and Highlands 1041 PM EDT Thu Apr 15 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM EDT FRIDAY... * WHAT...Temperatures as low as 33 to 35 degrees, along with light winds, will result in areas of frost formation. * WHERE...Madison, Swain, Haywood, Graham, Northern Jackson and Macon Counties. * WHEN...From 2 AM to 9 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ PM
881 WWUS72 KGSP 160800 NPWGSP URGENT - WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 400 AM EDT Fri Apr 16 2021 NCZ048-051-052-058-059-062-161300- /O.CON.KGSP.FR.Y.0002.000000T0000Z-210416T1300Z/ Madison-Swain-Haywood-Graham-Northern Jackson-Macon- Including the cities of Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Alarka, Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville, Stecoah, Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, and Highlands 400 AM EDT Fri Apr 16 2021 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Haywood, Swain, Madison, Macon, Graham and Northern Jackson Counties. * 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. && $$
242 WWUS72 KGSP 161302 NPWGSP URGENT - WEATHER MESSAGE National Weather Service Greenville-Spartanburg SC 902 AM EDT Fri Apr 16 2021 NCZ048-051-052-058-059-062-161415- /O.EXP.KGSP.FR.Y.0002.000000T0000Z-210416T1300Z/ Madison-Swain-Haywood-Graham-Northern Jackson-Macon- Including the cities of Faust, Mars Hill, Marshall, Walnut, Allenstand, Hot Springs, Luck, Alarka, Almond, Bryson City, Luada, Wesser, Waynesville, Waterville, Canton, Cruso, Cove Creek, Robbinsville, Stecoah, Cullowhee, Tuckasegee, Sylva, Franklin, Rainbow Springs, Kyle, and Highlands 902 AM EDT Fri Apr 16 2021 ...FROST ADVISORY HAS EXPIRED... Temperatures have warmed enough that the threat of frost formation has ended this morning. Temperatures will quickly warm through the 40s over the next hour or two. $$ Wimberley
Nearby
Frost Advisories in North Carolina, 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.