Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

June 16, 2015Johnson County, Georgia

NWS Atlanta, GA issued this special weather statement at Jun 16, 2015, 7:00 PM EDT for Johnson County, Georgia. It was in force for 30 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
Jun 16, 2015, 7:00 PM EDT (23:00 UTC)
Expired
Jun 16, 2015, 7:30 PM EDT
In force
30 min
Issued by
NWS Atlanta, GA

County Johnson County, GA

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.0 hours before the alert went out and 184 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 12:00Z on 2015-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 607 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 12:00Z on 2015-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -22 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
607 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1385 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-22 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Jun 16, 3:31 PM EDT, 3 hours 29 minutes earlier.

Area forecast discussion, Jun 16, 3:31 PM EDT, 3 hours 29 minutes before
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Jun 16, 12:10 PM EDT, 6 hours 50 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1210 PM EDT TUE JUN 16 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-171000-
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-
1210 PM EDT TUE JUN 16 2015

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

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

...HOT TEMPERATURES CONTINUE TODAY...

WEATHER HAZARDS EXPECTED...
HOT TEMPERATURES AND HIGH HEAT INDICES.
ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS.

DISCUSSION...

HOT TEMPERATURES WILL CONTINUE TODAY ACROSS NORTH AND CENTRAL
GEORGIA. HEAT INDEX VALUES WILL BE 105-109 FOR PORTIONS OF EAST
CENTRAL GEORGIA WHERE A HEAT ADVISORY IS IN EFFECT FOR THIS
AFTERNOON. PLEASE SEE THE HEAT ADVISORY /ATLNPWFFC/ FOR MORE
DETAILS. REGARDLESS OF IF YOU ARE IN THE HEAT ADVISORY AREA OR
NOT...IT WILL STILL BE HOT AND EVERYONE SHOULD FOLLOW HEAT SAFETY
RULES. LIMIT YOUR TIME OUTDOORS. IF YOU MUST BE OUTDOORS...WEAR
LOOSE FITTING...LIGHT COLORED CLOTHING AND BE SURE TO STAY HYDRATED.
REMEMBER TO KEEP YOUR PETS SAFE TOO BY PROVIDING PLENTY OF CLEAN...
COOL WATER AND A PLACE FOR THEM TO GET OUT OF THE SUN.

ISOLATED TO SCATTERED THUNDERSTORMS WILL ALSO BE POSSIBLE ACROSS FAR
NORTH GEORGIA AND CENTRAL GEORGIA THIS AFTERNOON AND EVENING. A FEW
STORMS COULD BE STRONG WITH GUSTY WINDS. OTHERWISE...THE PRIMARY
HAZARDS INCLUDE LIGHTNING AND HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THE HOT TEMPERATURES WILL CONTINUE THROUGH THE WEEK...ALTHOUGH IT
WILL BE A FEW DEGREES COOLER FOR THE END OF THE WEEK AND THIS
WEEKEND. HEAT INDICES WILL ONCE AGAIN BE AROUND 105 ACROSS PARTS OF
EAST CENTRAL GEORGIA WEDNESDAY AND THURSDAY AND THIS WILL NEED TO BE
MONITORED FOR MORE POSSIBLE HEAT ADVISORIES.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE
EACH DAY. THE CHANCES INCREASE LATER IN THE WEEK AS THE UPPER RIDGE
WEAKENS SLIGHTLY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.

In the hours before

Special weather statement, Jun 16, 6:36 PM EDT, 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
636 PM EDT TUE JUN 16 2015

GAZ085-097-162300-
JOHNSON GA-LAURENS GA-
636 PM EDT TUE JUN 16 2015

...SIGNIFICANT WEATHER ADVISORY FOR 35 MPH WINDS IN JOHNSON AND
LAURENS COUNTIES UNTIL 700 PM EDT...

AT 635 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WRIGHTSVILLE...MOVING NORTH AT 5 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED SIZED HAIL...
FREQUENT CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 35 MPH AS IT
MOVES ACROSS JOHNSON AND LAURENS COUNTIES THROUGH 700 PM EDT.
ADDITIONALLY...HEAVY DOWNPOURS ARE POSSIBLE AND PONDING OF WATER ON
ROADWAYS CAN BE EXPECTED.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
WRIGHTSVILLE...LOVETT...TUCKERS CROSSROAD...SPANN...DONOVAN...BREWTON
AND NEW HOME.

LAT...LON 3256 8268 3259 8289 3278 8289 3281 8281
      3280 8278 3279 8277 3277 8277 3278 8274
      3279 8270 3277 8258
TIME...MOT...LOC 2235Z 190DEG 6KT 3265 8277
Special weather statement, Jun 16, 7:00 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
700 PM EDT TUE JUN 16 2015

GAZ085-097-162330-
JOHNSON GA-LAURENS GA-
700 PM EDT TUE JUN 16 2015

...SIGNIFICANT WEATHER ADVISORY FOR EXCESSIVE LIGHTNING IN JOHNSON
AND LAURENS COUNTIES UNTIL 730 PM EDT...

AT 659 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WRIGHTSVILLE...MOVING NORTHEAST AT 10 MPH.

LIGHTNING DETECTION SYSTEMS INDICATE NUMEROUS CLOUD-TO-GROUND
LIGHTNING STRIKES ACROSS JOHNSON AND LAURENS COUNTIES...INCLUDING
AREAS AROUND WRIGHTSVILLE...LOVETT...BREWTON... SPANN... NEW HOME
AND DONOVAN. IN ADDITION TO THE LIGHTNING...WIND GUSTS OF 40 MPH ARE
ALSO POSSIBLE.

RESIDENTS IN THIS AREA SHOULD STAY INDOORS.  ELECTRICAL APPLIANCES
AND TELEPHONES SHOULD NOT BE USED UNLESS IN AN EMERGENCY.

LAT...LON 3254 8272 3263 8290 3280 8279 3279 8277
      3277 8277 3280 8269 3278 8267 3280 8263
      3279 8262 3282 8256 3282 8254 3276 8245
TIME...MOT...LOC 2259Z 219DEG 9KT 3269 8274

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 2:42 AM EDTHeat AdvisoryFFCBaldwin, Bibb, Bleckley, Crisp, Dodge, Dooly and 22 more17 hr
Jun 16, 6:36 PM EDTSpecial Weather StatementFFCJohnson24 min
Jun 16, 7:49 PM EDTSpecial Weather StatementFFCCatoosa, Walker26 min

Nearby

Special Weather Statements in Georgia, 2015Every special weather statement in 2015

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.