Alert archive / Georgia / Freeze Watches in 2007

Freeze Watch 4, NWS Atlanta, GA

April 8, 20079 counties in Georgia

NWS Atlanta, GA issued this freeze watch at Apr 8, 2007, 4:07 AM EDT for 9 counties in Georgia. It took effect at Apr 9, 2007, 5:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued: Apr 8, 2007, 4:07 AM EDT (08:07 UTC)
In effect from: Apr 9, 2007, 5:00 AM EDT
Expired: Apr 8, 2007, 9:47 AM EDT
In force
Issued by: NWS Atlanta, GA

Counties Bibb County, GA, Crawford County, GA, Harris County, GA, Jefferson County, GA, Talbot County, GA, Twiggs County, GA, Upson County, GA, Washington County, GA, Wilkinson County, GA

The radar

The Robins AFB radar (KJGX), 36 km from the middle of the area, began a volume at 08:07 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, 8.1 hours before the alert went out and 97 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: 2438 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 49 m²/s²
0-3 km storm-relative helicity: 79 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 freeze watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this freeze watch went out at Apr 7, 6:45 PM EDT, 9 hours 22 minutes earlier.

Area forecast discussion, Apr 7, 6:45 PM EDT, 9 hours 22 minutes before

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Hazardous weather outlook, Apr 7, 11:32 AM EDT, 16 hours 35 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 4:07 AM EDT	Freeze Warning	FFC	Baldwin, Banks, Barrow, Bartow, Butts, Carroll and 56 more	29 hr
Apr 8, 4:13 AM EDT	Fire Weather Watch	FFC	Banks, Barrow, Bartow, Butts, Carroll, Catoosa and 48 more	11 hr
Apr 8, 3:01 PM EDT	Red Flag Warning	FFC	Banks, Barrow, Bartow, Butts, Carroll, Catoosa and 48 more	14 hr

Nearby

Freeze Watches in Georgia, 2007 Every freeze watch in 2007

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.