Alert archive / North Carolina / Winter Storm Warnings in 2022

Winter Storm Warning 6, NWS Greenville-Spartanburg, SC

April 8, 2022Graham County, Swain County, North Carolina

NWS Greenville-Spartanburg, SC issued this winter storm warning at Apr 8, 2022, 4:28 AM EDT for Graham County, Swain County, North Carolina. It took effect at Apr 8, 2022, 2:00 PM EDT. It was in force for 36 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 8, 2022, 4:28 AM EDT (08:28 UTC)
In effect from
Apr 8, 2022, 2:00 PM EDT
Expired
Apr 10, 2022, 2:00 AM EDT
In force
36 hr
Issued by
NWS Greenville-Spartanburg, SC

Counties Graham County, NC, Swain County, NC

The radar

The Knoxville radar (KMRX), 87 km from the middle of the area, began a volume at 08:26 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 00:00Z, 8.5 hours before the alert went out and 240 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, Peachtre/Fal Fld, GA at 00:00Z on 2022-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2022-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 square meters per square second.1939587897117136Sfc1 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
5 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
2987 m above ground
0-6 km bulk shear
102 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 8, 4:28 AM EDTWinter Weather AdvisoryGSPAvery, Graham, Haywood, Jackson, Madison, Mitchell and 2 more46 hr
Apr 8, 4:42 AM EDTFrost AdvisoryGSPAlexander, Burke, Cabarrus, Caldwell, Catawba, Cleveland and 7 more28 hr
Apr 8, 4:42 AM EDTFreeze WarningGSPCaldwell28 hr

Nearby

Winter Storm Warnings in North Carolina, 2022Every winter storm warning in 2022

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.