Alert archive / Georgia / Tornado Warnings in 2020

Tornado Warning 39, NWS Atlanta, GA

May 27, 2020Harris County, Georgia

NWS Atlanta, GA issued this tornado warning at May 27, 2020, 7:57 PM EDT for Harris County, Georgia. It was in force for 48 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
May 27, 2020, 7:57 PM EDT (23:57 UTC)
Expired
May 27, 2020, 8:45 PM EDT
In force
48 min
Issued by
NWS Atlanta, GA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Harris County, GA

The radar

The Maxwell AFB radar (KMXX), 69 km from the middle of the area, began a volume at 23:57 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, 12.0 hours before the alert went out and 86 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 2020-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 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 12:00Z on 2020-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 square meters per square second.1939Sfc1 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
25 J/kg
Mixed-layer CIN
-123 J/kg
Mixed-layer LCL
533 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

635 
WFUS52 KFFC 272357
TORFFC
GAC145-280045-
/O.NEW.KFFC.TO.W.0039.200527T2357Z-200528T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Peachtree City GA
757 PM EDT Wed May 27 2020

The National Weather Service in Peachtree City has issued a

* Tornado Warning for...
  Northwestern Harris County in west central Georgia...

* Until 845 PM EDT.
    
* At 757 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Beans Mill, or 9 miles east of Opelika, moving
  northeast at 15 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Jones Crossroads, Mountain Hill, Whitesville-Pine Lake and Lake
  Harding.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

If you see wind damage...hail or flooding...wait until the storm has
passed...and then call the National Weather Service toll free
at 1 8 6 6 7 6 3 4 4 6 6 or tweet us your report at NWSATLANTA.

&&

LAT...LON 3287 8516 3287 8495 3274 8491 3266 8509
      3269 8512 3272 8512 3274 8511 3274 8513
      3276 8514 3278 8512 3281 8517 3283 8517
      3285 8515 3286 8518
TIME...MOT...LOC 2357Z 228DEG 15KT 3268 8522 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$
1 follow-up statement
466 
WWUS52 KFFC 280039
SVSFFC

Severe Weather Statement
National Weather Service Peachtree City GA
839 PM EDT Wed May 27 2020

GAC145-280049-
/O.EXP.KFFC.TO.W.0039.000000T0000Z-200528T0045Z/
Harris GA-
839 PM EDT Wed May 27 2020

...THE TORNADO WARNING FOR NORTHWESTERN HARRIS COUNTY WILL EXPIRE AT
845 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Peachtree City.

LAT...LON 3287 8516 3287 8495 3274 8491 3266 8509
      3269 8512 3272 8512 3274 8511 3274 8513
      3276 8514 3278 8512 3281 8517 3283 8517
      3285 8515 3286 8518
TIME...MOT...LOC 0039Z 228DEG 15KT 3280 8507 

$$

Nearby

Tornado Warnings in Georgia, 2020Every tornado warning in 2020Tornadoes in 2020

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.