Alert archive / Georgia / Special Weather Statements in 2013

Special Weather Statement, NWS Atlanta, GA

July 1, 2013Cherokee County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 1, 2013, 1:03 PM EDT for Cherokee 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
Jul 1, 2013, 1:03 PM EDT (17:03 UTC)
Expired
Jul 1, 2013, 1:30 PM EDT
In force
27 min
Issued by
NWS Atlanta, GA

County Cherokee County, GA

The radar

The Atlanta radar (KFFC), 84 km from the middle of the area, began a volume at 17:05 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, 5.1 hours before the alert went out and 83 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 2013-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1019 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 2013-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 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
1019 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
646 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

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 Jul 1, 10:08 AM EDT, 2 hours 55 minutes earlier.

Area forecast discussion, Jul 1, 10:08 AM EDT, 2 hours 55 minutes before
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Hazardous weather outlook, Jul 1, 5:09 AM EDT, 7 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
509 AM EDT MON JUL 1 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-020915-
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-
509 AM EDT MON JUL 1 2013

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

.DAY ONE...TODAY AND TONIGHT...

ISOLATED TO SCATTERED THUNDERSTORMS EXPECTED ACROSS THE AREA LATER
THIS MORNING THROUGH TONIGHT. THESE STORMS WILL DEVELOP ALONG A
WEAK NEARLY STATIONARY FRONT THAT IS ORIENTED NE TO SW ACROSS THE
STATE. AREAS SOUTH AND EAST OF A CARROLLTON TO GAINESVILLE LINE WILL
SEE A GREATER CHANCE FOR STRONG STORMS DUE TO HIGHER LOW LEVEL
MOISTURE AND INCREASED INSTABILITY. THUNDERSTORMS SHOULD SLOWLY
WEAKEN AND DECREASE IN COVERAGE TONIGHT...BUT WILL LIKELY PERSIST
THROUGH EARLY TUESDAY MORNING.

WEATHER HAZARDS EXPECTED...

THE PRIMARY THREATS WILL BE FREQUENT LIGHTNING...WIND GUSTS T0 50
MPH OR GREATER...HEAVY RAINFALL...AND HAIL.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

...PROLONGED HEAVY RAINFALL EVENT LIKELY TUESDAY THROUGH FRIDAY...

A PLUME OF RICH MOISTURE AND STRENGTHENING UPPER LEVEL FLOW
TUESDAY THROUGH FRIDAY WILL ALLOW FOR STRONG TO SEVERE STORMS TO
DEVELOP ACROSS THE STATE. PERSONS PLANNING OUTDOOR ACTIVITIES
DURING THIS TIME...INCLUDING FOURTH OF JULY EVENTS...SHOULD
MONITOR THE LATEST FORECASTS.

WEATHER HAZARDS EXPECTED...

VERY HEAVY RAINFALL...FLOODING...FREQUENT DANGEROUS LIGHTNING...WIND
GUSTS TO 60 MPH OR GREATER AND HAIL WILL BE POSSIBLE WITH STORMS
TUESDAY THROUGH FRIDAY.

.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.

In the hours before

Special weather statement, Jul 1, 1:03 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
103 PM EDT MON JUL 1 2013

GAZ020-021-031-032-011730-
103 PM EDT MON JUL 1 2013

...SIGNIFICANT WEATHER ADVISORY FOR PEA SIZED HAIL AND 40 MPH WINDS
IN PAULDING...BARTOW...CHEROKEE AND COBB COUNTIES UNTIL 130 PM EDT...

AT 100 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER CROSS ROADS...MOVING NORTHEAST AT 30 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PEA SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
PAULDING...BARTOW...CHEROKEE AND COBB COUNTIES THROUGH 130 PM EDT.
SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE NEW HOPE...CROSS
ROADS...BURNT HICKORY RIDGE...DUE WEST...EMERSON...KENNESAW...RED TOP
MOUNTAIN STATE PARK...ACWORTH...KENNESAW STATE UNIVERSITY...KELLOGG
CREEK...GEORGE WASHINGTON CARVER STATE PARK...OAK GROVE...HOBGOOD
PARK...SWEAT MOUNTAIN AND WOODSTOCK. HEAVY DOWNPOURS WILL CAUSE
PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 3428 8444 3412 8436 3410 8442 3404 8442
      3392 8482 3408 8491
TIME...MOT...LOC 1703Z 246DEG 28KT 3404 8477

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 8:17 PM EDTSpecial Weather StatementFFCMarion, Schley, Taylor58 min
Jun 30, 8:27 PM EDTFlash Flood WarningFFCMarion, Schley, Taylor4 hr
Jun 30, 9:29 PM EDTSpecial Weather StatementFFCMacon, Peach46 min
Jun 30, 10:57 PM EDTSpecial Weather StatementFFCMontgomery63 min
Jul 1, 1:14 PM EDTSpecial Weather StatementFFCPickens31 min
Jul 1, 1:26 PM EDTFlash Flood WatchFFCBaldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 90 more4 days
Jul 1, 2:11 PM EDTSpecial Weather StatementFFCPickens34 min
Jul 1, 3:33 PM EDTSpecial Weather StatementFFCFayette27 min

Nearby

Special Weather Statements in Georgia, 2013Every special weather statement in 2013

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.