Alert archive / Georgia / Wind Chill Advisories in 2015

Wind Chill Advisory 3, NWS Jacksonville, FL

February 19, 20154 counties in Georgia

NWS Jacksonville, FL issued this wind chill advisory at Feb 19, 2015, 10:44 AM EST for 4 counties in Georgia. It was in force for 90 min.

The area

The counties it named.

The facts

Issued: Feb 19, 2015, 10:44 AM EST (15:44 UTC)
Expired: Feb 19, 2015, 12:14 PM EST
In force: 90 min
Issued by: NWS Jacksonville, FL

Counties Appling County, GA, Bacon County, GA, Coffee County, GA, Jeff Davis County, GA

The radar

The Moody AFB radar (KVAX), 96 km from the middle of the area, began a volume at 15:46 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.7 hours before the alert went out and 218 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: 2016 m above ground
0-6 km bulk shear: 86 kt
0-1 km storm-relative helicity: -25 m²/s²
0-3 km storm-relative helicity: 44 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 Jacksonville, FL wrote its last area forecast discussion before this wind chill advisory went out at Feb 19, 3:51 AM EST, 6 hours 53 minutes earlier.

Area forecast discussion, Feb 19, 3:51 AM EST, 6 hours 53 minutes before

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Hazardous weather outlook, Feb 19, 9:37 AM EST, 1 hour 7 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

Everything else NWS Jacksonville, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 18, 7:18 PM EST	Gale Warning	JAX		14 hr
Feb 19, 2:24 AM EST	Hard Freeze Warning	JAX	Baker, Bradford, Duval, Flagler, Gilchrist, Nassau and 2 more	31 hr
Feb 19, 9:36 AM EST	Small Craft Advisory	JAX		19 hr

Nearby

Wind Chill Advisories in Georgia, 2015 Every wind chill advisory in 2015

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.