Alert archive / South Carolina / Freezing Rain Advisories in 2016

Freezing Rain Advisory 1, NWS Columbia, SC

January 21, 20166 counties in South Carolina

NWS Columbia, SC issued this freezing rain advisory at Jan 21, 2016, 4:30 AM EST for 6 counties in South Carolina. It took effect at Jan 22, 2016, 1:00 AM EST. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Jan 21, 2016, 4:30 AM EST (09:30 UTC)
In effect from
Jan 22, 2016, 1:00 AM EST
Expired
Jan 22, 2016, 5:41 PM EST
In force
17 hr
Issued by
NWS Columbia, SC

Counties Fairfield County, SC, Kershaw County, SC, Lee County, SC, Newberry County, SC, Richland County, SC, Sumter County, SC

The radar

The Columbia radar (KCAE), 39 km from the middle of the area, began a volume at 09:32 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 9.5 hours before the alert went out and 226 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, Greensboro/Hi Pt, NC at 00:00Z on 2016-01-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Greensboro/Hi Pt, NC at 00:00Z on 2016-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
646 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
269 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

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 21, 4:30 AM ESTWinter Storm WarningCAEChesterfield47 hr

Nearby

Freezing Rain Advisories in South Carolina, 2016Every freezing rain advisory in 2016

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.