Alert archive / Georgia / Special Weather Statements in 2016

Special Weather Statement, NWS Atlanta, GA

May 21, 2016Bleckley County, Georgia

NWS Atlanta, GA issued this special weather statement at May 21, 2016, 4:33 PM EDT for Bleckley County, Georgia. It was in force for 27 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 21, 2016, 4:33 PM EDT (20:33 UTC)
Expired: May 21, 2016, 5:00 PM EDT
In force: 27 min
Issued by: NWS Atlanta, GA

County Bleckley County, GA

The radar

The Robins AFB radar (KJGX), 23 km from the middle of the area, began a volume at 20:36 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, 8.6 hours before the alert went out and 155 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: 420 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 566 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.9

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 21, 3:48 PM EDT, 45 minutes earlier.

Area forecast discussion, May 21, 3:48 PM EDT, 45 minutes before

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Hazardous weather outlook, May 21, 11:15 AM EDT, 5 hours 18 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1115 AM EDT SAT MAY 21 2016

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-221000-
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-
1115 AM EDT SAT MAY 21 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL
GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

ISOLATED THUNDERSTORMS ARE POSSIBLE ACROSS NORTH AND CENTRAL GEORGIA
THIS AFTERNOON...MAINLY SOUTH AND EAST OF I-85. THERE IS A VERY
SMALL RISK OF A STRONG TO MARGINALLY SEVERE THUNDERSTORM ACROSS THE
EAST THROUGH THE DAY.

WEATHER HAZARDS EXPECTED...

THE PRIMARY THREAT FROM ANY THUNDERSTORMS WILL BE BRIEF PERIODS OF
CLOUD TO GROUND LIGHTNING...GUSTY WINDS AND HEAVY RAIN.

DISCUSSION...

INSTABILITY IS SOMEWHAT LIMITED AND ANY UPPER-LEVEL SUPPORT FOR
THUNDERSTORMS WILL BE LIFTING NORTH AND EAST OF THE AREA THROUGH THE
DAY...HOWEVER A COLD FRONT SWEEPING THROUGH THE REGION MAY STILL
PRODUCE ISOLATED THUNDERSTORMS. THERE IS JUST ENOUGH INSTABILITY
ACROSS THE EASTERN PORTIONS OF NORTH AND CENTRAL GEORGIA FOR A
MARGINAL RISK OF AN ISOLATED SEVERE THUNDERSTORM THROUGH LATE
AFTERNOON.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

CHANCES FOR THUNDERSTORMS RETURN TO THE REGION BY WEDNESDAY THROUGH
FRIDAY.

WEATHER HAZARDS EXPECTED...

THE PRIMARY HAZARD FROM ANY THUNDERSTORMS WILL BE FREQUENT
LIGHTNING...GUSTY WINDS AND LOCALLY HEAVY RAIN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT REQUESTED...BUT SPOTTERS ARE ENCOURAGED TO
SUBMIT REPORTS OF SEVERE WEATHER THROUGH THE WEB BY GOING TO
WEATHER.GOV/ATLANTA.

20

In the hours before

Special weather statement, May 21, 2:54 PM EDT, 1 hour 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
254 PM EDT SAT MAY 21 2016

GAZ059-060-072-211930-
JONES GA-JASPER GA-PUTNAM GA-
254 PM EDT SAT MAY 21 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN JONES...SOUTHEASTERN
JASPER AND SOUTHWESTERN PUTNAM COUNTIES UNTIL 330 PM EDT...

AT 253 PM EDT...A STRONG THUNDERSTORM WAS 11 MILES SOUTH OF
MONTICELLO...MOVING SOUTHEAST AT 30 MPH.

  HAZARD...UP TO 40 MPH WIND...FREQUENT CLOUD TO GROUND LIGHTNING
           AND HEAVY RAIN.

  IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY. EXPECT
           MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
           LIGHT...UNSECURED OBJECTS. ELECTRICAL APPLIANCES SHOULD
           NOT BE USED UNLESS IN AN EMERGENCY. LOCALIZED FLOODING IN
           LOW LYING AND POOR DRAINAGE AREAS IS ALSO LIKELY.
           MOTORISTS SHOULD SLOW DOWN AND BE PREPARED FOR POSSIBLE
           LOSS OF CONTROL DUE TO HYDROPLANING.  WHEN WATER COVERS
           THE ROAD...REMEMBER TO TURN AROUND DON'T DROWN.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
GRAY...CLINTON...BRADLEY...WAYSIDE...ROUND OAK...MCELHENEYS
CROSSROADS... STANFORDVILLE...HILLSBORO...RESSEAUS
CROSSROADS...ETHRIDGE...HADDOCK... ADGATEVILLE AND BLOUNTSVILLE.

LAT...LON 3297 8337 3300 8364 3315 8382 3316 8382
      3327 8375 3322 8341 3319 8340 3318 8343
      3311 8342
TIME...MOT...LOC 1853Z 303DEG 28KT 3314 8369

Special weather statement, May 21, 3:31 PM EDT, 1 hour 2 minutes before

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Local storm report, May 21, 3:58 PM EDT, 35 minutes before

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Special weather statement, May 21, 4:00 PM EDT, 33 minutes before

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Local storm report, May 21, 4:20 PM EDT, 13 minutes before

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Special weather statement, May 21, 4:33 PM 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 21, 12:58 PM EDT	Special Weather Statement	FFC	Newton, Rockdale	32 min
May 21, 1:28 PM EDT	Special Weather Statement	FFC	Newton	32 min
May 21, 1:55 PM EDT	Special Weather Statement	FFC	Jasper	35 min
May 21, 2:22 PM EDT	Special Weather Statement	FFC	Putnam	23 min
May 21, 2:54 PM EDT	Special Weather Statement	FFC	Jones	36 min
May 21, 3:04 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Jones	41 min
May 21, 3:31 PM EDT	Special Weather Statement	FFC	Bibb	29 min
May 21, 3:44 PM EDT	Severe Thunderstorm Warning	FFC	Bibb, Jones, Twiggs, Wilkinson	46 min
May 21, 4:00 PM EDT	Special Weather Statement	FFC	Washington	45 min

Nearby

Special Weather Statements in Georgia, 2016 Every special weather statement in 2016

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.