Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

September 21, 2011Harris County, Muscogee County, Talbot County, Georgia

NWS Atlanta, GA issued this special weather statement at Sep 21, 2011, 12:49 AM EDT for Harris County, Muscogee County, Talbot County, Georgia. It was in force for 56 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: Sep 21, 2011, 12:49 AM EDT (04:49 UTC)
Expired: Sep 21, 2011, 1:45 AM EDT
In force: 56 min
Issued by: NWS Atlanta, GA

Counties Harris County, GA, Muscogee County, GA, Talbot County, GA

The radar

The Atlanta radar (KFFC), 69 km from the middle of the area, began a volume at 04:49 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, 4.8 hours before the alert went out and 71 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: 639 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 831 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Sep 20, 10:32 PM EDT, 2 hours 17 minutes earlier.

Area forecast discussion, Sep 20, 10:32 PM EDT, 2 hours 17 minutes before

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Hazardous weather outlook, Sep 20, 10:50 PM EDT, 1 hour 59 minutes before

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In the hours before

Special weather statement, Sep 20, 9:22 PM EDT, 3 hours 27 minutes before

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Special weather statement, Sep 20, 9:31 PM EDT, 3 hours 18 minutes before

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Special weather statement, Sep 20, 9:52 PM EDT, 2 hours 57 minutes before

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Special weather statement, Sep 20, 10:09 PM EDT, 2 hours 40 minutes before

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Special weather statement, Sep 20, 11:47 PM EDT, 1 hour 2 minutes before

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Special weather statement, Sep 21, 12:49 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
Sep 20, 8:35 PM EDT	Special Weather Statement	FFC	Harris, Heard, Troup	40 min
Sep 20, 9:22 PM EDT	Special Weather Statement	FFC	Harris, Troup	38 min
Sep 20, 9:31 PM EDT	Special Weather Statement	FFC	Glascock, Hancock	44 min
Sep 20, 9:52 PM EDT	Special Weather Statement	FFC	Harris, Troup	23 min
Sep 20, 10:09 PM EDT	Special Weather Statement	FFC	Harris	66 min
Sep 20, 11:47 PM EDT	Special Weather Statement	FFC	Harris, Muscogee, Talbot	58 min
Sep 21, 4:28 AM EDT	Special Weather Statement	FFC	Meriwether	62 min
Sep 21, 6:23 AM EDT	Special Weather Statement	FFC	Jones, Putnam	52 min
Sep 21, 7:13 AM EDT	Special Weather Statement	FFC	Putnam	62 min
Sep 21, 8:26 AM EDT	Special Weather Statement	FFC	Jones, Putnam	49 min
Sep 21, 9:21 AM EDT	Special Weather Statement	FFC	Jones	54 min
Sep 21, 3:05 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs	40 min
Sep 21, 4:36 PM EDT	Special Weather Statement	FFC	Treutlen	39 min
Sep 21, 5:57 PM EDT	Special Weather Statement	FFC	Laurens	33 min
Sep 21, 6:26 PM EDT	Special Weather Statement	FFC	Dodge, Laurens	49 min
Sep 21, 7:27 PM EDT	Special Weather Statement	FFC	Washington	48 min

Nearby

Special Weather Statements in Georgia, 2011 Every special weather statement in 2011

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.