Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

February 28, 2017Gordon County, Murray County, Whitfield County, Georgia

NWS Atlanta, GA issued this special weather statement at Feb 28, 2017, 1:07 PM EST for Gordon County, Murray County, Whitfield County, Georgia. It was in force for 38 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 28, 2017, 1:07 PM EST (18:07 UTC)
Expired: Feb 28, 2017, 1:45 PM EST
In force: 38 min
Issued by: NWS Atlanta, GA
Wind: 40

Counties Gordon County, GA, Murray County, GA, Whitfield County, GA

The radar

The Northeast Alabama radar (KHTX), 108 km from the middle of the area, began a volume at 17:55 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, 6.1 hours before the alert went out and 159 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: 630 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 211 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 28, 1:00 PM EST, 7 minutes earlier.

Area forecast discussion, Feb 28, 1:00 PM EST, 7 minutes before

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<body>
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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In the hours before

Special weather statement, Feb 28, 1:07 PM EST, 0 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
107 PM EST TUE FEB 28 2017

GAZ002-004-005-011-012-019-281845-
Chattooga GA-Whitfield GA-Walker GA-Gordon GA-Murray GA-Floyd GA-
107 PM EST TUE FEB 28 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN CHATTOOGA...
WHITFIELD...SOUTHEASTERN WALKER...GORDON...SOUTHERN MURRAY AND
NORTHEASTERN FLOYD COUNTIES UNTIL 145 PM EST...

At 106 PM EST...a strong thunderstorm was over Lake Marvin, moving
northeast at 55 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
Dalton, Calhoun, Chatsworth, Varnell, Eton, Tunnel Hill, Resaca,
Ranger, Subligna, Redbud, Lake Marvin, Villanow, Oakman, Fort
Mountain State Park, Carters, Ramhurst, Oostanaula, Suttles Mill,
Rocky Face and Tilton.

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 3478 8464 3475 8464 3473 8466 3449 8466
      3444 8517 3460 8528 3482 8508 3482 8506
      3484 8506 3487 8504 3488 8501 3489 8501
      3493 8498
TIME...MOT...LOC 1806Z 239DEG 50KT 3457 8511

WIND...40MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 1:32 PM EST	Special Weather Statement	FFC	Fannin, Gilmer, Murray	43 min
Feb 28, 3:01 PM EST	Special Weather Statement	FFC	Catoosa, Chattooga, Dade, Dawson, Fannin, Floyd and 10 more	119 min
Feb 28, 5:23 PM EST	Special Weather Statement	FFC	Walker	22 min

Nearby

Special Weather Statements in Georgia, 2017 Every special weather statement in 2017

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.