Alert archive / North Carolina / Wind Chill Advisories in 2022

Wind Chill Advisory 1, NWS Raleigh, NC

December 22, 202231 counties in North Carolina

NWS Raleigh, NC issued this wind chill advisory at Dec 22, 2022, 3:40 AM EST for 31 counties in North Carolina. It took effect at Dec 23, 2022, 7:00 PM EST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Dec 22, 2022, 3:40 AM EST (08:40 UTC)
In effect from: Dec 23, 2022, 7:00 PM EST
Expired: Dec 24, 2022, 11:00 AM EST
In force: 16 hr
Issued by: NWS Raleigh, NC

All 31 counties

Alamance County, NC, Anson County, NC, Chatham County, NC, Cumberland County, NC, Davidson County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Granville County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Johnston County, NC, Lee County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Orange County, NC, Person County, NC, Randolph County, NC, Richmond County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Wayne County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 45 km from the middle of the area, began a volume at 08:40 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

Roanoke, VA (KRNK), launched 00:00Z, 8.7 hours before the alert went out and 174 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2074 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 284 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Raleigh, NC wrote its last area forecast discussion before this wind chill advisory went out at Dec 22, 1:21 AM EST, 2 hours 19 minutes earlier.

Area forecast discussion, Dec 22, 1:21 AM EST, 2 hours 19 minutes before

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Hazardous weather outlook, Dec 21, 9:51 PM EST, 5 hours 49 minutes before

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The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 22, 9:24 AM EST	Special Weather Statement	RAH	Cumberland, Hoke	66 min
Dec 22, 10:32 AM EST	Special Weather Statement	RAH	Cumberland, Sampson	43 min
Dec 22, 11:14 AM EST	Wind Advisory	RAH	Alamance, Anson, Chatham, Cumberland, Davidson, Durham and 25 more	31 hr

Nearby

Wind Chill Advisories in North Carolina, 2022 Every wind chill advisory 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.