Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

November 1, 20185 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Nov 1, 2018, 2:21 PM EDT for 5 counties in Georgia. It was in force for 39 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
Nov 1, 2018, 2:21 PM EDT (18:21 UTC)
Expired
Nov 1, 2018, 3:00 PM EDT
In force
39 min
Issued by
NWS Atlanta, GA
Wind
50

Counties Clayton County, GA, DeKalb County, GA, Fayette County, GA, Henry County, GA, Spalding County, GA

The radar

The Atlanta radar (KFFC), 24 km from the middle of the area, began a volume at 18:22 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 12:00Z, 6.4 hours before the alert went out and 20 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, Peachtre/Fal Fld, GA at 12:00Z on 2018-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Peachtre/Fal Fld, GA at 12:00Z on 2018-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
621 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
271 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

055 
WWUS82 KFFC 011821
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
221 PM EDT THU NOV 1 2018
 
GAZ033-044>046-053>057-011900-
Fayette GA-North Fulton GA-Rockdale GA-Clayton GA-Coweta GA-
DeKalb GA-Spalding GA-Henry GA-South Fulton GA-
221 PM EDT THU NOV 1 2018

...SIGNIFICANT WEATHER ADVISORY FOR FAYETTE...NORTH FULTON...
ROCKDALE...CLAYTON...SOUTHEASTERN COWETA...DEKALB...SPALDING...HENRY
AND EASTERN SOUTH FULTON COUNTIES UNTIL 300 PM EDT...

At 220 PM EDT...National Weather Service doppler radar indicated a
line of strong thunderstorms along a line extending from near College
Park to near Fayetteville to near Haralson...and moving northeast at
55 mph.

  HAZARD...40 to 50 mph wind and enhanced risk of a brief tornado.

  IMPACT...While winds should result in minor damage to tree limbs 
           and blowing around of light...unsecured objects...the 
           leading edge of this line of storms has also exhibited 
           areas of localized rotation. A brief tornado could 
           quickly form.

Some locations in the path of these storms include
Atlanta, Griffin, McDonough, Decatur, Fayetteville, Conyers,
Jonesboro, Peachtree City, East Point, Stockbridge, Union City,
Forest Park, Riverdale, College Park, Clarkston, Hampton, Morrow,
Lovejoy, Hapeville and Stone Mountain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately.

LAT...LON 3344 8457 3371 8451 3384 8433 3381 8412
      3378 8408 3375 8402 3346 8406 3323 8426
      3322 8465 3323 8465 3323 8468
TIME...MOT...LOC 1820Z 232DEG 49KT 3367 8448 3348 8450 3325 8462 

WIND...50MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 1, 12:54 PM EDTSpecial Weather StatementFFCDade, Walker66 min
Nov 1, 1:07 PM EDTTornado WarningFFCCatoosa, Dade, Walker38 min
Nov 1, 1:11 PM EDTSpecial Weather StatementFFCChattahoochee, Harris, Heard, Meriwether, Muscogee, Stewart and 1 more34 min
Nov 1, 1:39 PM EDTTornado WarningFFCCatoosa, Walker36 min
Nov 1, 1:50 PM EDTSpecial Weather StatementFFCClayton, Coweta, Douglas, Fayette, Fulton25 min
Nov 1, 1:54 PM EDTSpecial Weather StatementFFCChattahoochee, Harris, Marion, Meriwether, Muscogee, Pike and 4 more36 min
Nov 1, 2:04 PM EDTTornado WarningFFCCoweta, Fayette12 min
Nov 1, 2:14 PM EDTSpecial Weather StatementFFCWhitfield46 min
Nov 1, 2:27 PM EDTSpecial Weather StatementFFCCrawford, Lamar, Macon, Pike, Schley, Sumter and 3 more48 min
Nov 1, 2:38 PM EDTSpecial Weather StatementFFCCherokee52 min
Nov 1, 3:11 PM EDTSpecial Weather StatementFFCBibb, Butts, Crawford, Dooly, Henry, Houston and 5 more49 min
Nov 1, 3:47 PM EDTSpecial Weather StatementFFCBleckley, Crisp, Houston, Pulaski, Twiggs43 min
Nov 1, 3:50 PM EDTSpecial Weather StatementFFCBibb, Jasper, Jones, Morgan40 min
Nov 1, 4:27 PM EDTSpecial Weather StatementFFCDodge, Laurens, Wilcox, Wilkinson48 min
Nov 1, 4:30 PM EDTSpecial Weather StatementFFCBaldwin, Greene, Oglethorpe, Putnam45 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.