Alert archive / Georgia / Special Weather Statements in 2018

Special Weather Statement, NWS Atlanta, GA

April 4, 20185 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Apr 4, 2018, 1:21 AM EDT for 5 counties in Georgia. It was in force for 39 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 4, 2018, 1:21 AM EDT (05:21 UTC)
Expired
Apr 4, 2018, 2:00 AM EDT
In force
39 min
Issued by
NWS Atlanta, GA
Wind
50

Counties Bartow County, GA, Floyd County, GA, Haralson County, GA, Paulding County, GA, Polk County, GA

The radar

The Atlanta radar (KFFC), 100 km from the middle of the area, began a volume at 05:25 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.

What was reported inside it

TimeReportWhereRemark
Apr 4, 1:30 AM EDTTSTM WND DMGRome, GA2 TREES DOWN IN ROME. ONE ALONG VAUGHN ROAD AND ANOTHER ALONG BLACKS BLUFF ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 5.4 hours before the alert went out and 103 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 00:00Z on 2018-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2018-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897Sfc1 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
66 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1853 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

884 
WWUS82 KFFC 040521
SPSFFC

Special Weather Statement
National Weather Service Peachtree City GA
121 AM EDT WED APR 4 2018
 
GAZ019-020-030-031-041-042-040600-
Polk GA-Haralson GA-Bartow GA-Carroll GA-Paulding GA-Floyd GA-
121 AM EDT WED APR 4 2018

...SIGNIFICANT WEATHER ADVISORY FOR POLK...HARALSON...BARTOW...
NORTHWESTERN CARROLL...PAULDING AND FLOYD COUNTIES UNTIL 200 AM
EDT...

At 121 AM EDT...a line of strong thunderstorms was along a line
extending from near Coosa to near Cave Spring to Jacksonville...and
moving southeast at 55 mph.

  HAZARD...Winds 40 to 50 mph. 

  IMPACT...Expect minor damage to tree limbs and blowing around of 
           light...unsecured objects. 

Some locations in the path of these storms include
Rome, Cartersville, Dallas, Cedartown, Buchanan, Bremen, Adairsville,
Temple, Rockmart, Euharlee, Tallapoosa, Aragon, Cave Spring, White,
Kingston, Waco, Braswell, Taylorsville, Shannon and Cassville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately.

LAT...LON 3435 8533 3440 8468 3380 8488 3362 8533
      3417 8544
TIME...MOT...LOC 0521Z 305DEG 47KT 3429 8531 3411 8539 3382 8573 

WIND...50MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 12:31 AM EDTSevere Thunderstorm WarningFFCChattooga, Dade, Walker44 min
Apr 4, 1:11 AM EDTSevere Thunderstorm WarningFFCCatoosa, Chattooga, Fannin, Floyd, Gordon, Murray and 2 more49 min
Apr 4, 1:56 AM EDTSpecial Weather StatementFFCBartow, Carroll, Cherokee, Cobb, Dawson, Douglas and 7 more49 min
Apr 4, 2:39 AM EDTSpecial Weather StatementFFCClayton, Coweta, Dawson, DeKalb, Forsyth, Fulton and 7 more36 min
Apr 4, 3:05 AM EDTSpecial Weather StatementFFCTowns, White10 min
Apr 4, 3:10 AM EDTSpecial Weather StatementFFCBanks, Barrow, Clayton, Coweta, DeKalb, Fayette and 6 more35 min
Apr 4, 3:40 AM EDTFreeze WarningFFCBartow, Catoosa, Chattooga, Cherokee, Dade, Dawson and 15 more29 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.