Alert archive / Georgia / Special Weather Statements in 2020

Special Weather Statement, NWS Atlanta, GA

February 5, 2020Dade County, Georgia

NWS Atlanta, GA issued this special weather statement at Feb 5, 2020, 12:06 PM EST for Dade County, Georgia. It was in force for 24 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: Feb 5, 2020, 12:06 PM EST (17:06 UTC)
Expired: Feb 5, 2020, 12:30 PM EST
In force: 24 min
Issued by: NWS Atlanta, GA
Wind: 40

County Dade County, GA

The radar

The Northeast Alabama radar (KHTX), 67 km from the middle of the area, began a volume at 17:08 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

Nashville Metro, TN (KBNA), launched 12:00Z, 5.1 hours before the alert went out and 173 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 501 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 93 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 Feb 5, 10:35 AM EST, 1 hour 31 minutes earlier.

Area forecast discussion, Feb 5, 10:35 AM EST, 1 hour 31 minutes before

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Hazardous weather outlook, Feb 5, 11:38 AM EST, 28 minutes before

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In the hours before

Special weather statement, Feb 5, 12:06 PM EST, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
1206 PM EST Wed Feb 5 2020

GAZ001>003-051730-
Catoosa GA-Walker GA-Dade GA-
1206 PM EST Wed Feb 5 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CATOOSA...NORTHERN
WALKER AND NORTHERN DADE COUNTIES UNTIL 1230 PM EST...

At 1206 PM EST...a strong thunderstorm was near Stephensville, or
near Trenton...moving northeast 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
Trenton, Fort Oglethorpe, Rossville, Lookout Mountain, Lakeview, Cole
City, Wildwood, Fairview, Stephensville, Chattanooga  Valley, New
England, Morganville and Hooker.

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 3499 8519 3497 8518 3484 8558 3498 8560
TIME...MOT...LOC 1706Z 245DEG 37KT 3492 8560

WIND...40MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 5, 12:23 PM EST	Special Weather Statement	FFC	Dade	37 min
Feb 5, 12:47 PM EST	Special Weather Statement	FFC	Catoosa	28 min
Feb 5, 4:54 PM EST	River Flood Warning	FFC	Dade	61 hr

Nearby

Special Weather Statements in Georgia, 2020 Every 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.