Alert archive / Georgia / Special Weather Statements in 2012

Special Weather Statement, NWS Atlanta, GA

July 15, 2012Bartow County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 15, 2012, 4:00 PM EDT for Bartow County, Georgia. It was in force for 30 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 15, 2012, 4:00 PM EDT (20:00 UTC)
Expired: Jul 15, 2012, 4:30 PM EDT
In force: 30 min
Issued by: NWS Atlanta, GA

County Bartow County, GA

The radar

The Northeast Alabama radar (KHTX), 118 km from the middle of the area, began a volume at 20:03 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, 8.0 hours before the alert went out and 120 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: 1407 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 633 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -39 m²/s²
0-3 km storm-relative helicity: -30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

468 
WWUS82 KFFC 152000
SPSFFC

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
400 PM EDT SUN JUL 15 2012

GAZ019-020-152030-
400 PM EDT SUN JUL 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN BARTOW AND FLOYD
COUNTIES UNTIL 430 PM EDT...

AT 357 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM AROUND ADAIRSVILLE...MOVING NORTH AT 5 MPH.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
BARTOW AND FLOYD COUNTIES...INCLUDING AREAS AROUND ADAIRSVILLE AND
PINSON. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF
CREEKS AND STREAMS ARE SUBJECT TO MINOR FLOODING.

SIGNIFICANT WEATHER ADVISORIES ARE ISSUED FOR WINDS UP TO 50 MPH...
HAIL LESS THAN THE SIZE OF QUARTERS...OR SIGNIFICANT CLOUD-TO-GROUND
LIGHTNING.

&&

LAT...LON 3440 8503 3439 8502 3439 8498 3440 8498
      3439 8496 3440 8495 3440 8490 3428 8487
      3422 8503 3440 8510
TIME...MOT...LOC 2001Z 164DEG 5KT 3433 8498

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 8:43 PM EDT	Special Weather Statement	FFC	Clayton	32 min
Jul 14, 9:37 PM EDT	Special Weather Statement	FFC	Bartow, Cobb	23 min
Jul 14, 10:43 PM EDT	Special Weather Statement	FFC	Gordon	32 min
Jul 14, 11:27 PM EDT	Special Weather Statement	FFC	Gilmer, Pickens	33 min
Jul 15, 1:13 PM EDT	Special Weather Statement	FFC	Gordon	32 min
Jul 15, 1:25 PM EDT	Special Weather Statement	FFC	Union	50 min
Jul 15, 2:03 PM EDT	Special Weather Statement	FFC	Floyd	27 min
Jul 15, 2:07 PM EDT	Special Weather Statement	FFC	Pickens	23 min
Jul 15, 2:22 PM EDT	Special Weather Statement	FFC	Gordon	23 min
Jul 15, 2:31 PM EDT	Special Weather Statement	FFC	Chattooga	44 min
Jul 15, 2:54 PM EDT	Special Weather Statement	FFC	Murray	36 min
Jul 15, 3:02 PM EDT	Special Weather Statement	FFC	Bartow	28 min
Jul 15, 3:23 PM EDT	Special Weather Statement	FFC	Floyd	37 min
Jul 15, 3:28 PM EDT	Special Weather Statement	FFC	Bartow	32 min
Jul 15, 4:41 PM EDT	Special Weather Statement	FFC	Cherokee	34 min
Jul 15, 4:44 PM EDT	Special Weather Statement	FFC	Catoosa	31 min
Jul 15, 4:47 PM EDT	Special Weather Statement	FFC	Polk	43 min

Nearby

Special Weather Statements in Georgia, 2012 Every special weather statement in 2012

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.