Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Atlanta, GA

October 29, 2020Haralson County, Polk County, Georgia

NWS Atlanta, GA issued this special weather statement at Oct 29, 2020, 3:44 AM EDT for Haralson County, Polk County, Georgia. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 29, 2020, 3:44 AM EDT (07:44 UTC)
Expired: Oct 29, 2020, 4:15 AM EDT
In force: 31 min
Issued by: NWS Atlanta, GA

Counties Haralson County, GA, Polk County, GA

The radar

The Atlanta radar (KFFC), 79 km from the middle of the area, began a volume at 07:45 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, 7.7 hours before the alert went out and 83 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: 252 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 851 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 191 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Oct 29, 1:57 AM EDT, 1 hour 47 minutes earlier.

Area forecast discussion, Oct 29, 1:57 AM EDT, 1 hour 47 minutes before

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Hazardous weather outlook, Oct 29, 1:56 AM EDT, 1 hour 48 minutes before

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In the hours before

Special weather statement, Oct 29, 3:44 AM EDT, 0 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
Oct 28, 8:43 PM EDT	Wind Advisory	FFC	Baldwin, Bibb, Bleckley, Butts, Carroll, Chattahoochee and 52 more	14 hr
Oct 29, 3:50 AM EDT	Special Weather Statement	FFC	Heard	25 min
Oct 29, 3:55 AM EDT	Special Weather Statement	FFC	Catoosa, Chattooga, Dade, Walker, Whitfield	65 min
Oct 29, 4:10 AM EDT	Special Weather Statement	FFC	Floyd	50 min
Oct 29, 4:17 AM EDT	Special Weather Statement	FFC	Heard	28 min
Oct 29, 4:36 AM EDT	Special Weather Statement	FFC	Bartow, Fannin, Gilmer, Gordon, Murray, Pickens	54 min
Oct 29, 4:56 AM EDT	Special Weather Statement	FFC	Catoosa, Chattooga, Dade, Walker, Whitfield	49 min
Oct 29, 5:05 AM EDT	River Flood Warning	FFC	Forsyth, Fulton	32 hr
Oct 29, 5:11 AM EDT	Special Weather Statement	FFC	Dawson, Lumpkin, Towns, Union, White	49 min
Oct 29, 5:30 AM EDT	Special Weather Statement	FFC	Fannin, Gilmer, Murray	30 min
Oct 29, 5:57 AM EDT	Special Weather Statement	FFC	Towns, Union, White	33 min
Oct 29, 7:40 AM EDT	River Flood Warning	FFC	Towns	3 hr
Oct 29, 8:29 AM EDT	River Flood Warning	FFC	Union	6 hr
Oct 29, 8:34 AM EDT	River Flood Warning	FFC	Towns	14 hr
Oct 29, 10:11 AM EDT	River Flood Warning	FFC	Forsyth	7 hr
Oct 29, 10:22 AM EDT	River Flood Warning	FFC	Union	2 hr
Oct 29, 1:47 PM EDT	River Flood Warning	FFC	Whitfield	8 hr
Oct 29, 7:40 PM EDT	River Flood Warning	FFC	Dawson, Forsyth	5 hr
Oct 29, 7:43 PM EDT	Wind Advisory	FFC	Banks, Barrow, Bartow, Carroll, Catoosa, Chattooga and 40 more	8 hr

Nearby

Special Weather Statements in Georgia, 2020 Every special weather statement in 2020

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.