Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

July 7, 2018Chattahoochee County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 7, 2018, 6:33 PM EDT for Chattahoochee County, Georgia. It was in force for 27 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
Jul 7, 2018, 6:33 PM EDT (22:33 UTC)
Expired
Jul 7, 2018, 7:00 PM EDT
In force
27 min
Issued by
NWS Atlanta, GA
Hail
0.75 in
Wind
50

County Chattahoochee County, GA

The radar

The Maxwell AFB radar (KMXX), 87 km from the middle of the area, began a volume at 22:32 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 12:00Z, 10.6 hours before the alert went out and 203 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 12:00Z on 2018-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 164 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2018-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939Sfc1 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
164 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 8:12 PM EDTSpecial Weather StatementFFCEmanuel, Johnson, Laurens, Treutlen33 min
Jul 6, 8:16 PM EDTSpecial Weather StatementFFCCoweta, Heard, Troup44 min
Jul 6, 9:05 PM EDTSpecial Weather StatementFFCDodge, Laurens, Treutlen, Wilcox25 min
Jul 6, 9:35 PM EDTSpecial Weather StatementFFCDodge, Laurens, Montgomery, Telfair, Treutlen, Wheeler and 1 more25 min
Jul 6, 10:07 PM EDTSpecial Weather StatementFFCCrisp, Dodge, Montgomery, Telfair, Toombs, Wheeler and 1 more38 min
Jul 6, 10:25 PM EDTSpecial Weather StatementFFCTwiggs35 min
Jul 6, 10:45 PM EDTSpecial Weather StatementFFCBleckley, Dooly, Pulaski30 min
Jul 6, 10:50 PM EDTSpecial Weather StatementFFCGlascock, Washington25 min
Jul 6, 10:59 PM EDTSpecial Weather StatementFFCTwiggs31 min
Jul 6, 11:17 PM EDTSpecial Weather StatementFFCHouston28 min
Jul 6, 11:34 PM EDTSpecial Weather StatementFFCStewart26 min
Jul 6, 11:54 PM EDTSpecial Weather StatementFFCBaldwin, Bibb, Crawford, Houston, Jones, Peach and 2 more51 min
Jul 7, 1:37 PM EDTSpecial Weather StatementFFCTroup38 min
Jul 7, 2:25 PM EDTSpecial Weather StatementFFCHarris, Troup50 min
Jul 7, 5:45 PM EDTSpecial Weather StatementFFCMontgomery, Toombs30 min
Jul 7, 7:05 PM EDTSpecial Weather StatementFFCBleckley, Dodge, Johnson, Laurens, Twiggs, Wilkinson25 min
Jul 7, 7:23 PM EDTSpecial Weather StatementFFCHarris, Muscogee37 min
Jul 7, 7:45 PM EDTSpecial Weather StatementFFCMeriwether30 min

Nearby

Special Weather Statements in Georgia, 2018Every special weather statement in 2018

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.