Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Atlanta, GA

March 31, 2021Cobb County, Douglas County, Fulton County, Georgia

NWS Atlanta, GA issued this special weather statement at Mar 31, 2021, 9:09 AM EDT for Cobb County, Douglas County, Fulton County, Georgia. It was in force for 36 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
Mar 31, 2021, 9:09 AM EDT (13:09 UTC)
Expired
Mar 31, 2021, 9:45 AM EDT
In force
36 min
Issued by
NWS Atlanta, GA
Wind
50

Counties Cobb County, GA, Douglas County, GA, Fulton County, GA

The radar

The Atlanta radar (KFFC), 51 km from the middle of the area, began a volume at 13:10 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, 1.2 hours before the alert went out and 53 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 2021-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 111 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, Peachtre/Fal Fld, GA at 12:00Z on 2021-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 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
111 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

591 
WWUS82 KFFC 311309
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
909 AM EDT Wed Mar 31 2021
 
GAZ031>033-042>044-311345-
North Fulton GA-Douglas GA-Cobb GA-Carroll GA-Paulding GA-
South Fulton GA-
909 AM EDT Wed Mar 31 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTH FULTON...DOUGLAS...SOUTHERN
COBB...NORTHEASTERN CARROLL...SOUTHEASTERN PAULDING AND NORTHERN
SOUTH FULTON COUNTIES UNTIL 945 AM EDT...

At 909 AM EDT...a line of strong thunderstorms was along a line
extending from Jim R Miller Park to near Brownsville to Temple...and
moving east at 30 mph.

  HAZARD...40 to 50 mph wind and heavy rain.

  IMPACT...Expect minor damage to tree limbs and blowing around of 
           light...unsecured objects. Heavy rain may cause temporary 
           street flooding especially in poor drainage areas.

Some locations in the path of these storms include
Atlanta, Marietta, Douglasville, Sandy Springs, Smyrna, Villa Rica,
Powder Springs, Austell, Temple, Hiram, Lithia Springs, Fair Oaks,
Vinings, Brownsville, Winston, Lake Val-Do-Mar, Mableton, Chastain
Memorial Park, Sweetwater Creek State Park and Jim R Miller Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. Motorists should
slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3380 8488 3395 8462 3395 8435 3387 8435
      3374 8446 3367 8476 3374 8505 3376 8505
TIME...MOT...LOC 1309Z 276DEG 26KT 3391 8461 3379 8480 3375 8505 

WIND...50MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 31, 7:04 AM EDTSpecial Weather StatementFFCCatoosa, Chattooga, Dade, Walker41 min
Mar 31, 7:46 AM EDTFlash Flood WarningFFCCatoosa, Dade, Walker5 hr
Mar 31, 8:16 AM EDTFlash Flood WarningFFCBartow, Chattooga, Fannin, Floyd, Gilmer, Gordon and 7 more6 hr
Mar 31, 8:19 AM EDTSpecial Weather StatementFFCPaulding26 min
Mar 31, 9:07 AM EDTRiver Flood WarningFFCDade29 hr
Mar 31, 9:08 AM EDTRiver Flood WarningFFCWhitfield5 hr
Mar 31, 9:15 AM EDTRiver Flood WarningFFCChattooga27 hr
Mar 31, 9:15 AM EDTRiver Flood WarningFFCFloyd45 hr
Mar 31, 9:15 AM EDTRiver Flood WarningFFCGordon, Murray, Whitfield4 days
Mar 31, 9:15 AM EDTRiver Flood WarningFFCFloyd, Gordon4 days
Mar 31, 9:23 AM EDTRiver Flood WarningFFCCatoosa49 hr
Mar 31, 9:38 AM EDTSpecial Weather StatementFFCGwinnett37 min
Mar 31, 9:44 AM EDTRiver Flood WarningFFCWhitfield71 hr
Mar 31, 9:53 AM EDTSpecial Weather StatementFFCDouglas, Fulton22 min
Mar 31, 9:54 AM EDTRiver Flood WarningFFCMurray, Whitfield44 hr
Mar 31, 11:26 AM EDTSpecial Weather StatementFFCHaralson, Paulding34 min
Mar 31, 11:58 AM EDTSpecial Weather StatementFFCCarroll, Cobb, Douglas32 min
Mar 31, 1:12 PM EDTSpecial Weather StatementFFCFayette33 min
Mar 31, 1:31 PM EDTRiver Flood WarningFFCCobb21 days
Mar 31, 2:00 PM EDTRiver Flood WarningFFCCatoosa19 hr
Mar 31, 2:21 PM EDTRiver Flood WarningFFCForsyth, Fulton21 hr
Mar 31, 3:00 PM EDTSpecial Weather StatementFFCOglethorpe30 min
Mar 31, 3:03 PM EDTSpecial Weather StatementFFCGreene27 min
Mar 31, 3:44 PM EDTSpecial Weather StatementFFCChattahoochee, Marion, Stewart31 min
Mar 31, 3:59 PM EDTSpecial Weather StatementFFCWilkes31 min
Mar 31, 4:22 PM EDTFreeze WatchFFCBanks, Barrow, Bartow, Butts, Carroll, Catoosa and 44 more11 hr
Mar 31, 4:22 PM EDTWind AdvisoryFFCBanks, Barrow, Bartow, Bibb, Butts, Carroll and 64 more27 hr
Mar 31, 5:08 PM EDTSpecial Weather StatementFFCBleckley, Dooly, Houston, Pulaski, Twiggs, Wilkinson37 min
Mar 31, 5:23 PM EDTSpecial Weather StatementFFCGlascock, Washington37 min
Mar 31, 5:35 PM EDTSpecial Weather StatementFFCBleckley, Dodge, Pulaski, Wilcox25 min
Mar 31, 5:44 PM EDTSevere Thunderstorm WarningFFCLaurens31 min
Mar 31, 6:05 PM EDTSpecial Weather StatementFFCEmanuel, Treutlen, Wheeler25 min
Mar 31, 6:22 PM EDTRiver Flood WarningFFCMurray7 hr
Mar 31, 6:30 PM EDTSpecial Weather StatementFFCEmanuel, Montgomery, Telfair, Treutlen, Wheeler30 min
Mar 31, 7:00 PM EDTSpecial Weather StatementFFCEmanuel, Montgomery, Telfair, Toombs30 min

Nearby

Special Weather Statements in Georgia, 2021Every special weather statement in 2021

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.