Alert archive / Georgia / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

December 11, 2021Habersham County, Rabun County, Stephens County, Georgia

NWS Greenville-Spartanburg, SC issued this special weather statement at Dec 11, 2021, 1:21 PM EST for Habersham County, Rabun County, Stephens County, 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: Dec 11, 2021, 1:21 PM EST (18:21 UTC)
Expired: Dec 11, 2021, 2:00 PM EST
In force: 39 min
Issued by: NWS Greenville-Spartanburg, SC
Hail: 0.25 in
Wind: 50

Counties Habersham County, GA, Rabun County, GA, Stephens County, GA

The radar

The Greer radar (KGSP), 126 km from the middle of the area, began a volume at 18:24 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 162 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: 182 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 625 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 268 m²/s²
0-3 km storm-relative helicity: 271 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

As transmitted.

826 
WWUS82 KGSP 111821
SPSGSP

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
121 PM EST Sat Dec 11 2021
 
GAZ010-017-018-SCZ001-111900-
Rabun GA-Stephens GA-Habersham GA-Oconee Mountains SC-
121 PM EST Sat Dec 11 2021

...Strong thunderstorms will impact portions of Stephens, Habersham,
southwestern Rabun and western Oconee Counties through 200 PM EST...

At 121 PM EST, Doppler radar was tracking strong thunderstorms along
a line extending from 11 miles south of Hiawassee to 7 miles east of
Dawsonville. Movement was east at 45 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Toccoa, Clayton, Clarkesville, Cornelia, Baldwin, Demorest, Mount
Airy, Alto, Tiger and Tallulah Falls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Conditions are favorable for development of a very brief, weak
tornado. Be prepared to take immediate action if a tornado is sighted
or a Tornado Warning is issued.

&&

LAT...LON 3454 8362 3460 8365 3462 8364 3465 8366
      3468 8364 3471 8364 3474 8362 3477 8363
      3478 8366 3489 8340 3448 8319 3447 8338
      3446 8340 3448 8347 3449 8354 3443 8362
      3450 8367
TIME...MOT...LOC 1821Z 274DEG 38KT 3479 8378 3442 8398 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

$$

RM

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 10, 8:32 PM EST	Dense Fog Advisory	GSP	Alexander, Burke, Cabarrus, Caldwell, Catawba, Cleveland and 10 more	15 hr
Dec 11, 3:35 AM EST	Wind Advisory	GSP	Avery, Graham, Haywood, Jackson, Macon, Madison and 4 more	24 hr
Dec 11, 11:33 AM EST	Special Weather Statement	GSP	Graham, Haywood, Madison, Swain	72 min
Dec 11, 12:45 PM EST	Special Weather Statement	GSP	Buncombe, Haywood, Jackson, Macon, Madison	75 min
Dec 11, 12:51 PM EST	Special Weather Statement	GSP	Avery, Mitchell, Yancey	54 min
Dec 11, 3:08 PM EST	Special Weather Statement	GSP	Alexander, Burke, Caldwell, Catawba, Cleveland, Iredell and 3 more	67 min
Dec 11, 3:43 PM EST	Special Weather Statement	GSP	Alexander, Catawba, Cleveland, Gaston, Iredell, Lincoln	47 min
Dec 11, 4:16 PM EST	Special Weather Statement	GSP	Cabarrus, Davie, Gaston, Iredell, Lincoln, Mecklenburg and 1 more	59 min
Dec 11, 5:08 PM EST	Special Weather Statement	GSP	Cabarrus, Mecklenburg, Union	67 min
Dec 11, 1:48 PM EST	Special Weather Statement	GSP	Oconee	57 min
Dec 11, 2:29 PM EST	Special Weather Statement	GSP	Pickens	31 min
Dec 11, 2:52 PM EST	Special Weather Statement	GSP	Anderson	53 min
Dec 11, 3:02 PM EST	Special Weather Statement	GSP	Greenville, Spartanburg	43 min
Dec 11, 3:36 PM EST	Special Weather Statement	GSP	Abbeville, Greenwood, Laurens, Union	39 min
Dec 11, 4:13 PM EST	Special Weather Statement	GSP	Chester, Greenwood, Union	62 min
Dec 11, 5:10 PM EST	Special Weather Statement	GSP	Chester	35 min

Nearby

Special Weather Statements in Georgia, 2021 Every 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.