Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Atlanta, GA

March 3, 2020Clayton County, DeKalb County, Douglas County, Georgia

NWS Atlanta, GA issued this special weather statement at Mar 3, 2020, 2:00 AM EST for Clayton County, DeKalb County, Douglas County, Georgia. It was in force for 45 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
Mar 3, 2020, 2:00 AM EST (07:00 UTC)
Expired
Mar 3, 2020, 2:45 AM EST
In force
45 min
Issued by
NWS Atlanta, GA
Wind
50

Counties Clayton County, GA, DeKalb County, GA, Douglas County, GA

The radar

The Atlanta radar (KFFC), 28 km from the middle of the area, began a volume at 07:03 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 00:00Z, 7.0 hours before the alert went out and 26 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 2020-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2020-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 291 square meters per square second.1939587897117136156Sfc1 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
3 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
531 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
291 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Atlanta, GA wrote its last area forecast discussion before this special weather statement went out at Mar 3, 1:25 AM EST, 35 minutes earlier.

Area forecast discussion, Mar 3, 1:25 AM EST, 35 minutes before
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Hazardous weather outlook, Mar 2, 9:48 PM EST, 4 hours 12 minutes before
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In the hours before

Special weather statement, Mar 2, 8:28 PM EST, 5 hours 32 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
828 PM EST Mon Mar 2 2020

GAZ066-067-078-030200-
Harris GA-Troup GA-Meriwether GA-
828 PM EST Mon Mar 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN HARRIS...SOUTHERN
TROUP AND WESTERN MERIWETHER COUNTIES UNTIL 900 PM EST...

At 827 PM EST...a strong thunderstorm was over Lakeview, or near
Lanett...moving east at 40 mph.

  HAZARD...Up to 40 mph wind...frequent cloud to ground lightning
           and heavy rain.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects. Heavy rain may cause temporary
           street flooding especially in poor drainage areas.

Some locations in the path of this storm include
LaGrange, Hamilton, West Point, Pine Mountain, Cannonville, Stovall,
Piedmont Heights, Big Springs, Jones Crossroads, Baughs Crossroads,
Smiths Crossroad, Whitesville-Pine Lake and Long Cane.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3303 8521 3299 8481 3272 8487 3280 8516
      3281 8517 3283 8517 3285 8515 3286 8519
      3301 8521
TIME...MOT...LOC 0127Z 279DEG 33KT 3291 8516

WIND...40MPH
Special weather statement, Mar 2, 8:33 PM EST, 5 hours 27 minutes before
Special Weather Statement
National Weather Service Peachtree City GA
833 PM EST Mon Mar 2 2020

GAZ067-069-078-079-030200-
Harris GA-Upson GA-Meriwether GA-Talbot GA-
833 PM EST Mon Mar 2 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HARRIS...WESTERN
UPSON...SOUTHERN MERIWETHER AND NORTHWESTERN TALBOT COUNTIES UNTIL
900 PM EST...

At 832 PM EST...a strong thunderstorm was over Warm Springs, or 10
miles south of Greenville...moving east at 35 mph.

  HAZARD...Up to 40 mph wind...frequent cloud to ground lightning
           and heavy rain.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects. Heavy rain may cause temporary
           street flooding especially in poor drainage areas.

Some locations in the path of this storm include
Manchester, Woodbury, Warm Springs, Sprewell Bluff State Park,
Raleigh, Durand, Flint Hill, Imlac and Harris City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning. Motorists
should slow down and be prepared for possible loss of control due to
hydroplaning.

LAT...LON 3306 8454 3304 8453 3304 8454 3301 8454
      3300 8453 3299 8453 3298 8452 3297 8452
      3298 8450 3284 8443 3279 8475 3291 8482
TIME...MOT...LOC 0132Z 248DEG 29KT 3288 8470

WIND...40MPH
Special weather statement, Mar 3, 12:12 AM EST, 1 hour 48 minutes before
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Special weather statement, Mar 3, 2:00 AM EST, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 8:28 PM ESTSpecial Weather StatementFFCTroup32 min
Mar 2, 8:33 PM ESTSpecial Weather StatementFFCMeriwether27 min
Mar 3, 2:33 PM ESTFlash Flood WatchFFCBaldwin, Barrow, Bibb, Bleckley, Butts, Carroll and 63 more52 hr
Mar 3, 5:24 PM ESTSpecial Weather StatementFFCEmanuel36 min
Mar 3, 5:28 PM ESTSpecial Weather StatementFFCJohnson32 min

Nearby

Special Weather Statements in Georgia, 2020Every special weather statement 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.