Alert archive / Georgia / Special Weather Statements in 2017

Special Weather Statement, NWS Atlanta, GA

May 1, 20174 counties in Georgia

NWS Atlanta, GA issued this special weather statement at May 1, 2017, 11:53 AM EDT for 4 counties in Georgia. It was in force for 52 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 1, 2017, 11:53 AM EDT (15:53 UTC)
Expired: May 1, 2017, 12:45 PM EDT
In force: 52 min
Issued by: NWS Atlanta, GA
Wind: 50

Counties Bibb County, GA, Crawford County, GA, Jones County, GA, Monroe County, GA

The radar

The Robins AFB radar (KJGX), 65 km from the middle of the area, began a volume at 15:55 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, 3.9 hours before the alert went out and 74 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: 118 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 715 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 300 m²/s²
0-3 km storm-relative helicity: 336 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.3

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 May 1, 11:16 AM EDT, 37 minutes earlier.

Area forecast discussion, May 1, 11:16 AM EDT, 37 minutes before

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Hazardous weather outlook, May 1, 5:17 AM EDT, 6 hours 36 minutes before

Hazardous Weather Outlook
National Weather Service Peachtree City GA
517 AM EDT Mon May 1 2017

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-021200-
Baldwin-Banks-Barrow-Bartow-Bibb-Bleckley-Butts-Carroll-Catoosa-
Chattahoochee-Chattooga-Cherokee-Clarke-Clayton-Cobb-Coweta-
Crawford-Crisp-Dade-Dawson-DeKalb-Dodge-Dooly-Douglas-Emanuel-
Fannin-Fayette-Floyd-Forsyth-Gilmer-Glascock-Gordon-Greene-
Gwinnett-Hall-Hancock-Haralson-Harris-Heard-Henry-Houston-Jackson-
Jasper-Jefferson-Johnson-Jones-Lamar-Laurens-Lumpkin-Macon-
Madison-Marion-Meriwether-Monroe-Montgomery-Morgan-Murray-
Muscogee-Newton-North Fulton-Oconee-Oglethorpe-Paulding-Peach-
Pickens-Pike-Polk-Pulaski-Putnam-Rockdale-Schley-South Fulton-
Spalding-Stewart-Sumter-Talbot-Taliaferro-Taylor-Telfair-Toombs-
Towns-Treutlen-Troup-Twiggs-Union-Upson-Walker-Walton-Warren-
Washington-Webster-Wheeler-White-Whitfield-Wilcox-Wilkes-
Wilkinson-
517 AM EDT Mon May 1 2017

This Hazardous Weather Outlook is for portions of North and Central Georgia.

.DAY ONE...Today and Tonight...

A line of showers and thunderstorms, associated with a potent
weather system, is expected to impact portions North and Central
Georgia today. Isolated to scattered severe thunderstorms are
possible within this line. The primary mode of severe weather will
be damaging wind gusts up to 60 MPH. Isolated brief tornadoes
cannot be ruled out.

A Wind Advisory is in effect for the higher terrain of north
Georgia through 4 PM.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday...

Another potent weather system is expected to impact the region
Wednesday Night through Thursday. This system will bring another
round of thunderstorms to the area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed through tonight.

In the hours before

Special weather statement, May 1, 9:31 AM EDT, 2 hours 22 minutes before

Special Weather Statement
National Weather Service Peachtree City GA
931 AM EDT MON MAY 1 2017

GAZ078-089-090-102-011430-
Chattahoochee GA-Harris GA-Stewart GA-Muscogee GA-
931 AM EDT MON MAY 1 2017

...SIGNIFICANT WEATHER ADVISORY FOR CHATTAHOOCHEE...SOUTHEASTERN
HARRIS...STEWART AND MUSCOGEE COUNTIES UNTIL 1030 AM EDT...

At 930 AM EDT...National Weather Service doppler radar indicated a
line of strong thunderstorms along a line extending from near
Parkmanville to near Hawkinsville...and moving northeast at 40 mph.

  HAZARD...40 to 50 mph wind and enhanced risk of a brief tornado.

  IMPACT...While winds should result in minor damage to tree limbs
           and blowing around of light...unsecured objects...the
           leading edge of this line of storms has also exhibited
           areas of localized rotation. A brief tornado could
           quickly form.

Some locations in the path of these storms include
Lumpkin, Hamilton, Cusseta, Waverly Hall, North Fort Benning, Bibb
City, Upatoi, Fort Benning/lawson Army Air Fld, Ellerslie, Laurel
Hills, Green Island Hills, Westville, Vista Terrace, Cataula,
Columbus Metropolitan Airport, Jamestown/south Fort Benning,
Brooklyn, Renfroe, Rose Hill and Manta.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People outdoors should seek shelter immediately.

LAT...LON 3193 8493 3197 8496 3198 8496 3199 8507
      3209 8504 3213 8506 3222 8498 3226 8489
      3233 8501 3243 8496 3260 8508 3278 8489
      3264 8469 3256 8469 3256 8467 3252 8469
      3253 8464 3249 8466 3220 8466 3192 8486
TIME...MOT...LOC 1330Z 236DEG 34KT 3238 8522 3203 8516

WIND...50MPH

Special weather statement, May 1, 10:29 AM EDT, 1 hour 24 minutes before

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Special weather statement, May 1, 11:08 AM EDT, 45 minutes before

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Special weather statement, May 1, 11:53 AM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 9:31 AM EDT	Special Weather Statement	FFC	Chattahoochee, Harris, Muscogee, Stewart	59 min
May 1, 10:05 AM EDT	Tornado Warning	FFC	Chattahoochee, Muscogee	40 min
May 1, 10:29 AM EDT	Special Weather Statement	FFC	Chattahoochee, Talbot	46 min
May 1, 11:08 AM EDT	Special Weather Statement	FFC	Marion, Taylor, Upson	52 min
May 1, 12:40 PM EDT	Special Weather Statement	FFC	Greene, Jones, Morgan, Putnam	50 min
May 1, 1:27 PM EDT	Special Weather Statement	FFC	Hancock, Taliaferro	48 min
May 1, 1:58 PM EDT	Special Weather Statement	FFC	Hancock, Taliaferro, Warren, Wilkes	47 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.