Alert archive / Georgia / Special Weather Statements in 2013

Special Weather Statement, NWS Atlanta, GA

July 5, 2013Clarke County, Madison County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 5, 2013, 10:28 PM EDT for Clarke County, Madison County, Georgia. It was in force for 47 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 5, 2013, 10:28 PM EDT (02:28 UTC)
Expired
Jul 5, 2013, 11:15 PM EDT
In force
47 min
Issued by
NWS Atlanta, GA

Counties Clarke County, GA, Madison County, GA

The radar

The Greer radar (KGSP), 127 km from the middle of the area, began a volume at 02:30 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 00:00Z, 2.5 hours before the alert went out and 143 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 00:00Z on 2013-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 969 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 00:00Z on 2013-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 99 square meters per square second.193958Sfc1 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
969 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
803 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
99 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.9

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 5, 8:20 PM EDT, 2 hours 8 minutes earlier.

Area forecast discussion, Jul 5, 8:20 PM EDT, 2 hours 8 minutes before
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Hazardous weather outlook, Jul 5, 5:39 AM EDT, 16 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
539 AM EDT FRI JUL 5 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-060945-
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-
539 AM EDT FRI JUL 5 2013

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

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

AMPLE MOISTURE CONTINUES TO STREAM ACROSS THE STATE WITH SHOWERS
AND ISOLATED THUNDERSTORMS EXPECTED TO CONTINUE. THE GROUND ACROSS
THE AREA IS SATURATED AND ADDITIONAL HEAVY RAIN CAN LEAD TO
FLOODING OR FLASH FLOODING. THE HIGHEST RAINFALL TOTALS THROUGH
TONIGHT ARE EXPECTED TO BE ACROSS NORTHERN AND WESTERN SECTIONS OF
THE FORECAST AREA.

WEATHER HAZARDS EXPECTED...

PERIODS OF MODERATE TO HEAVY RAINFALL DURING THE EVENING AND
OVERNIGHT HOURS MAY LEAD TO ADDITIONAL FLASH FLOODING AND RIVER
FLOODING.

THUNDERSTORMS WILL PRODUCE OCCASIONAL LIGHTNING AND WIND GUSTS TO 40 MPH OR
GREATER. WITH SATURATED SOILS...IT WILL NOT TAKE MUCH WIND TO DOWN TREES.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY...

ALTHOUGH THE RAINFALL MAY NOT BE AS WIDESPREAD...THERE WILL STILL
BE PERIODS OF MODERATE TO HEAVY RAINFALL IN SHOWERS AND
THUNDERSTORMS THROUGH EARLY NEXT WEEK. NORTHWEST GEORGIA LOOKS TO
SEE THE BEST CHANCES FOR THIS ADDITIONAL RAINFALL AND THERE IS
SOME CONCERN THAT ACCUMULATING HIGH RAINFALL TOTALS MAY LEAD TO
MORE SIGNIFICANT FLOODING ACROSS THE AREA. PERSONS PLANNING
OUTDOOR ACTIVITIES FOR THE WEEKEND SHOULD MONITOR THE LATEST
FORECASTS.

.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 5, 6:15 PM EDT, 4 hours 13 minutes before
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Local storm report, Jul 5, 6:28 PM EDT, 4 hours before
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Special weather statement, Jul 5, 7:25 PM EDT, 3 hours 3 minutes before
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Special weather statement, Jul 5, 8:05 PM EDT, 2 hours 23 minutes before
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Special weather statement, Jul 5, 8:12 PM EDT, 2 hours 16 minutes before
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Special weather statement, Jul 5, 10:28 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1028 PM EDT FRI JUL 5 2013

GAZ024-025-027-036-038-060315-
1028 PM EDT FRI JUL 5 2013

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN OGLETHORPE...
MADISON...BANKS...CLARKE AND JACKSON COUNTIES UNTIL 1115 PM EDT...

AT 1020 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
A LINE OF SHOWERS PRODUCING HEAVY RAINFALL OVER
BARROW...OCONEE...AND GREENE COUNTIES...MOVING NORTH AT 35 MPH.
THIS LINE HAS A HISTORY OF PRODUCING 1 TO 1.5 INCHES OF RAIN IN A
VERY SHORT PERIOD OF TIME.

RAINFALL AMOUNTS BETWEEN 1 TO 2 INCHES CAN BE EXPECTED ACROSS
PORTIONS OF OGLETHORPE...MADISON...BANKS...CLARKE AND JACKSON
COUNTIES...INCLUDING AREAS AROUND
STEPHENS...MAXEYS...HUTCHINGS...LEXINGTON...CRAWFORD...STATE
BOTANICAL GARDEN OF GEORGIA...WHITEHALL...BEECHWOOD
HILLS...ARNOLDSVILLE...SANDY CROSS...WINTERVILLE...OCONEE
HEIGHTS...ATHENS...DUNLAP AND SMITHONIA. DRIVERS SHOULD USE CAUTION
AS INTENSE RAINFALL WILL REDUCE VISIBILITIES. PONDING OF WATER ON
ROADWAYS IS ALSO LIKELY.

&&

LAT...LON 3429 8335 3425 8333 3427 8330 3425 8325
      3425 8316 3427 8311 3423 8307 3417 8309
      3415 8305 3406 8298 3374 8314 3376 8327
      3381 8330 3385 8328 3393 8344 3431 8361
TIME...MOT...LOC 0225Z 183DEG 31KT 3384 8324

30

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 8:05 PM EDTSpecial Weather StatementFFCJones25 min
Jul 5, 8:12 PM EDTSpecial Weather StatementFFCCherokee, Cobb, Coweta, Douglas, Fulton, Paulding48 min
Jul 6, 3:49 AM EDTSpecial Weather StatementFFCBarrow, Jackson, Walton41 min
Jul 6, 4:29 AM EDTSpecial Weather StatementFFCBarrow, Jackson, Towns, White46 min
Jul 6, 5:16 AM EDTSpecial Weather StatementFFCTowns, White29 min
Jul 6, 5:44 AM EDTSpecial Weather StatementFFCTowns, White31 min
Jul 6, 1:06 PM EDTSpecial Weather StatementFFCWhitfield24 min
Jul 6, 1:14 PM EDTRiver Flood WarningFFCJohnson, Washington, Wilkinson15 hr
Jul 6, 1:14 PM EDTRiver Flood WarningFFCEmanuel, Treutlen28 hr
Jul 6, 3:27 PM EDTSpecial Weather StatementFFCChattahoochee, Marion, Muscogee, Schley, Stewart, Sumter and 1 more48 min
Jul 6, 4:00 PM EDTSpecial Weather StatementFFCFloyd, Gordon, Polk45 min
Jul 6, 5:24 PM EDTSpecial Weather StatementFFCCarroll, Douglas36 min
Jul 6, 6:37 PM EDTFlash Flood WarningFFCFloyd, Polk4 hr
Jul 6, 7:38 PM EDTFlash Flood WarningFFCWhitfield5 hr
Jul 6, 7:52 PM EDTSpecial Weather StatementFFCForsyth, Gwinnett38 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.