Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

February 25, 2017Chattooga County, Georgia

NWS Atlanta, GA issued this special weather statement at Feb 25, 2017, 3:46 AM EST for Chattooga County, Georgia. It was in force for 29 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 25, 2017, 3:46 AM EST (08:46 UTC)
Expired: Feb 25, 2017, 4:15 AM EST
In force: 29 min
Issued by: NWS Atlanta, GA
Hail: 0.25 in
Wind: 40

County Chattooga County, GA

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 8.8 hours before the alert went out and 209 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: 391 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 1931 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 166 m²/s²
0-3 km storm-relative helicity: 181 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.5

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 25, 12:49 AM EST, 2 hours 57 minutes earlier.

Area forecast discussion, Feb 25, 12:49 AM EST, 2 hours 57 minutes before

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Hazardous weather outlook, Feb 24, 9:08 AM EST, 18 hours 38 minutes before

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In the hours before

Special weather statement, Feb 25, 1:20 AM EST, 2 hours 26 minutes before

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Special weather statement, Feb 25, 2:43 AM EST, 1 hour 3 minutes before

Special Weather Statement
National Weather Service PEACHTREE CITY GA
243 AM EST SAT FEB 25 2017

GAZ003-004-250815-
Whitfield GA-Catoosa GA-
243 AM EST SAT FEB 25 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN WHITFIELD AND CATOOSA
COUNTIES UNTIL 315 AM EST...

At 243 AM EST...a strong thunderstorm was over Ringgold...moving
northeast at 55 mph.

  HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to
           ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Ringgold, Fort Oglethorpe, Varnell, Tunnel Hill, Cohutta, Indian
Springs, Wood Station, Graysville, Blue Spring, Boynton, Beaumont,
Beaverdale, Red Clay S.p. and Apison.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3499 8481 3497 8481 3494 8484 3492 8484
      3490 8483 3489 8483 3477 8518 3477 8520
      3485 8520 3486 8526 3495 8526 3499 8511
TIME...MOT...LOC 0743Z 239DEG 49KT 3489 8512

HAIL...0.25IN
WIND...40MPH

Special weather statement, Feb 25, 3:15 AM EST, 31 minutes before

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Special weather statement, Feb 25, 3:46 AM EST, 0 minutes before

Special Weather Statement
National Weather Service PEACHTREE CITY GA
346 AM EST SAT FEB 25 2017

GAZ002-011-250915-
Chattooga GA-Walker GA-
346 AM EST SAT FEB 25 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN CHATTOOGA AND SOUTHERN
WALKER COUNTIES UNTIL 415 AM EST...

At 346 AM EST...a strong thunderstorm was over Center Post, or near
Summerville...moving northeast at 55 mph.

  HAZARD...Up to 40 mph wind...pea sized hail and frequent cloud to
           ground lightning.

  IMPACT...Expect minor damage to tree limbs and blowing around of
           light...unsecured objects.

Some locations in the path of this storm include
Lafayette, Summerville, Trion, Menlo, Naomi, Center Post, Linwood,
Subligna, Suttles Mill, Villanow and Cloudland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately. If you can hear
thunder...you are close enough to be struck by lightning.

LAT...LON 3478 8517 3477 8515 3472 8517 3472 8505
      3462 8505 3461 8506 3459 8506 3459 8511
      3454 8513 3443 8548 3461 8552
TIME...MOT...LOC 0846Z 238DEG 49KT 3458 8539

HAIL...0.25IN
WIND...40MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 25, 1:20 AM EST	Special Weather Statement	FFC	Dade	55 min
Feb 25, 2:43 AM EST	Special Weather Statement	FFC	Catoosa	32 min
Feb 25, 3:15 AM EST	Special Weather Statement	FFC	Walker	30 min
Feb 25, 4:10 AM EST	Special Weather Statement	FFC	Floyd	35 min
Feb 25, 5:04 AM EST	Special Weather Statement	FFC	Bartow, Pickens	26 min
Feb 25, 5:27 AM EST	Severe Thunderstorm Warning	FFC	Cherokee, Dawson, Pickens	36 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.