Alert archive / Georgia / Winter Weather Advisories in 2014

Winter Weather Advisory 5, NWS Atlanta, GA

January 27, 201411 counties in Georgia

NWS Atlanta, GA issued this winter weather advisory at Jan 27, 2014, 9:36 PM EST for 11 counties in Georgia. It took effect at Jan 28, 2014, 10:00 AM EST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 27, 2014, 9:36 PM EST (02:36 UTC)
In effect from
Jan 28, 2014, 10:00 AM EST
Expired
Jan 28, 2014, 3:38 AM EST
In force
Issued by
NWS Atlanta, GA

Counties Barrow County, GA, Carroll County, GA, Cobb County, GA, DeKalb County, GA, Douglas County, GA, Fulton County, GA, Gwinnett County, GA, Haralson County, GA, Jackson County, GA, Madison County, GA, Paulding County, GA

The radar

The Atlanta radar (KFFC), 62 km from the middle of the area, began a volume at 02:37 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

Birmingham, AL (KBMX), launched 00:00Z, 2.6 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, Birmingham, AL at 00:00Z on 2014-01-28Temperature 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, Birmingham, AL at 00:00Z on 2014-01-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 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
2149 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
207 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Atlanta, GA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 28, 3:38 AM ESTWinter Weather AdvisoryFFCBanks, Bartow, Catoosa, Chattooga, Cherokee, Dade and 16 more10 hr

Nearby

Winter Weather Advisories in Georgia, 2014Every winter weather advisory in 2014

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.