Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Greenville-Spartanburg, SC

March 26, 2021Habersham County, Rabun County, Stephens County, Georgia; Oconee County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Mar 26, 2021, 1:29 AM EDT for Habersham County, Rabun County, Stephens County, Georgia; Oconee County, South Carolina. It was in force for 31 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
Mar 26, 2021, 1:29 AM EDT (05:29 UTC)
Expired
Mar 26, 2021, 2:00 AM EDT
In force
31 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Habersham County, GA, Rabun County, GA, Stephens County, GA, Oconee County, SC

The radar

The Greer radar (KGSP), 99 km from the middle of the area, began a volume at 05:29 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
Mar 26, 1:30 AM EDTTSTM WND DMG1 Wnw Tallulah Falls, GANUMEROUS TREES BLOWN DOWN AT TALLULAH FALLS SCHOOL. DELAYED REPORT FROM THURSDAY NIGHT.

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, 5.5 hours before the alert went out and 187 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 2021-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 344 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 2021-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 328 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
344 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1291 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
328 m²/s²
0-3 km storm-relative helicity
476 m²/s²
Significant tornado parameter
0.6
Supercell composite
6.8

Open this sounding in Storm Lab

The text

As transmitted.

333 
WUUS52 KGSP 260529
SVRGSP
GAC137-241-257-SCC073-260600-
/O.NEW.KGSP.SV.W.0005.210326T0529Z-210326T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Greenville-Spartanburg SC
129 AM EDT Fri Mar 26 2021

The National Weather Service in Greenville-Spartanburg has issued a

* Severe Thunderstorm Warning for...
  Northwestern Stephens County in northeastern Georgia...
  Northeastern Habersham County in northeastern Georgia...
  South central Rabun County in northeastern Georgia...
  Northwestern Oconee County in Upstate South Carolina...

* Until 200 AM EDT.

* At 129 AM EDT, a severe thunderstorm was located 7 miles northeast
  of Clarkesville, or near Tallulah Falls, moving east at 55 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Walhalla, Westminster, Tallulah Falls, Lake Rabun, Lakemont,
  Tallulah Gorge State Park, Oconee State Park, Mountain Rest, Long
  Creek and Turnerville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

This storm is also producing extremely heavy rainfall. Flooding of
drainage ditches and low lying areas may occur. Small streams will
rise rapidly. Do not drive through areas where water is flowing over
the road.

Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.

&&

LAT...LON 3473 8356 3494 8307 3467 8297 3466 8303
      3456 8349
TIME...MOT...LOC 0529Z 249DEG 48KT 3469 8342 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

MOORE
1 follow-up statement
963 
WWUS52 KGSP 260547
SVSGSP

Severe Weather Statement
National Weather Service Greenville-Spartanburg SC
147 AM EDT Fri Mar 26 2021

GAC137-241-260557-
/O.CAN.KGSP.SV.W.0005.000000T0000Z-210326T0600Z/
Habersham GA-Rabun GA-
147 AM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HABERSHAM AND
SOUTH CENTRAL RABUN COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area...therefore the warning has been cancelled.

LAT...LON 3467 8337 3469 8334 3470 8335 3472 8335
      3476 8332 3479 8332 3481 8330 3482 8331
      3481 8329 3483 8329 3482 8327 3485 8327
      3484 8325 3486 8324 3494 8307 3467 8297
      3461 8339
TIME...MOT...LOC 0547Z 249DEG 44KT 3472 8323 

$$

GAC257-SCC073-260600-
/O.CON.KGSP.SV.W.0005.000000T0000Z-210326T0600Z/
Stephens GA-Oconee SC-
147 AM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM EDT
FOR NORTHWESTERN STEPHENS AND CENTRAL OCONEE COUNTIES...

At 147 AM EDT, a severe thunderstorm was located 10 miles west of
Walhalla, or 7 miles east of Tallulah Gorge State Park, moving east
at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Walhalla, Westminster, Oconee State Park, Mountain Rest, Long Creek
and Seneca.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Scattered trees and power lines will be blown down in the warned
area. Seek shelter inside an interior room.

This storms is also producing extremely heavy rainfall. Flooding of
drainage ditches and low lying areas may occur. Small streams will
rise rapidly. Do not drive through areas where water is flowing over
the road.

Please report damaging winds, hail, or flooding to the National
Weather Service Greenville-Spartanburg by calling toll free, 1, 800,
2 6 7, 8 1 0 1, or by posting on our Facebook page, or Tweet it using
hashtag nwsgsp. Your message should describe the event and the
specific location where it occurred.

&&

LAT...LON 3467 8337 3469 8334 3470 8335 3472 8335
      3476 8332 3479 8332 3481 8330 3482 8331
      3481 8329 3483 8329 3482 8327 3485 8327
      3484 8325 3486 8324 3494 8307 3467 8297
      3461 8339
TIME...MOT...LOC 0547Z 249DEG 44KT 3472 8323 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

MOORE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 9:20 PM EDTAreal Flood WarningGSPRabun9 hr
Mar 25, 11:19 PM EDTAreal Flood AdvisoryGSPHabersham6 hr
Mar 25, 11:49 PM EDTAreal Flood AdvisoryGSPStephens12 hr
Mar 26, 12:42 AM EDTSpecial Weather StatementGSPRabun33 min
Mar 26, 12:57 AM EDTFlash Flood Warning Considerable damage threatGSPHabersham, Rabun6 hr
Mar 26, 1:14 AM EDTSpecial Weather StatementGSPHabersham, Rabun31 min
Mar 26, 2:38 AM EDTSpecial Weather StatementGSPFranklin, Hart37 min
Mar 26, 3:15 AM EDTSpecial Weather StatementGSPHart30 min
Mar 26, 3:23 AM EDTSevere Thunderstorm WarningGSPElbert, Hart24 min
Mar 26, 4:01 AM EDTSpecial Weather StatementGSPElbert29 min
Mar 26, 4:29 AM EDTSpecial Weather StatementGSPElbert31 min
Mar 26, 6:10 AM EDTSpecial Weather StatementGSPElbert50 min
Mar 26, 6:42 AM EDTAreal Flood WarningGSPHabersham, Rabun27 hr
Mar 25, 11:06 PM EDTSpecial Weather StatementGSPSpartanburg24 min
Mar 25, 11:42 PM EDTSpecial Weather StatementGSPCherokee48 min
Mar 25, 11:52 PM EDTSpecial Weather StatementGSPSpartanburg38 min
Mar 26, 12:20 AM EDTSpecial Weather StatementGSPChester, Union, York40 min
Mar 26, 1:55 AM EDTSevere Thunderstorm WarningGSPOconee, Pickens35 min
Mar 26, 2:28 AM EDTSpecial Weather StatementGSPGreenville32 min
Mar 26, 2:50 AM EDTAreal Flood AdvisoryGSPSpartanburg14 hr
Mar 26, 3:21 AM EDTRiver Flood WarningGSPCherokee, York30 hr
Mar 26, 3:49 AM EDTSpecial Weather StatementGSPLaurens26 min
Mar 26, 4:14 AM EDTSpecial Weather StatementGSPLaurens, Union31 min
Mar 26, 4:25 AM EDTSpecial Weather StatementGSPChester35 min
Mar 26, 4:44 AM EDTSevere Thunderstorm WarningGSPChester31 min
Mar 26, 4:55 AM EDTSpecial Weather StatementGSPLaurens35 min
Mar 26, 5:20 AM EDTSpecial Weather StatementGSPChester40 min
Mar 26, 6:17 AM EDTRiver Flood AdvisoryGSPGreenville, Pickens7 hr
Mar 26, 6:58 AM EDTSpecial Weather StatementGSPGreenwood17 min
Mar 26, 6:59 AM EDTSpecial Weather StatementGSPLaurens31 min
Mar 26, 9:20 AM EDTSpecial Weather StatementGSPAbbeville25 min
Mar 26, 9:41 AM EDTSevere Thunderstorm WarningGSPAbbeville, Greenwood, Laurens49 min
Mar 26, 11:28 AM EDTAreal Flood AdvisoryGSPPickens14 hr
Mar 26, 1:32 PM EDTRiver Flood WarningGSPGreenville, Pickens31 hr
Mar 26, 4:37 PM EDTAreal Flood AdvisoryGSPSpartanburg10 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2021Severe Thunderstorm Warnings in South Carolina, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.