Alert archive / Georgia / Special Weather Statements in 2011

Special Weather Statement, NWS Atlanta, GA

July 6, 2011Candler County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 6, 2011, 6:12 PM EDT for Candler County, Georgia. It was in force for 33 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 6, 2011, 6:12 PM EDT (22:12 UTC)
Expired: Jul 6, 2011, 6:45 PM EDT
In force: 33 min
Issued by: NWS Atlanta, GA

County Candler County, GA

The radar

The Robins AFB radar (KJGX), 110 km from the middle of the area, began a volume at 22:13 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

Charleston AFB, SC (KCHS), launched 12:00Z, 10.2 hours before the alert went out and 215 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: 2191 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 710 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 62 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 Jul 6, 4:14 PM EDT, 1 hour 58 minutes earlier.

Area forecast discussion, Jul 6, 4:14 PM EDT, 1 hour 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
414 PM EDT WED JUL 6 2011

.SHORT TERM /TONIGHT THROUGH FRIDAY NIGHT/...
A SURFACE TROUGH CONTINUES OVER CENTRAL GA THIS AFTERNOON WITH
ANOTHER TROUGH EXPECTED TO MOVE INTO NORTH GA ON THURSDAY. THESE
TROUGHS WILL CONTINUE TO BE TRIGGERING MECHANISMS AND COMBINED
WITH THE DIURNAL HEATING THIS AFTERNOON AND THURSDAY WILL PRODUCE
SCATTERED THUNDERSTORMS OVER THE FORECAST AREA.

A MID LEVEL TROUGH WITH THE ASSOCIATED VORT MAX WILL MOVE THROUGH
THE MID MS RIVER VALLEY THURSDAY NIGHT AND APPROACH GA BY FRIDAY
MORNING. THE SHORTWAVE ENERGY WILL PROVIDE ADEQUATE LIFT AND THE
PRECIPITABLE WATER INCREASES TO NEAR TWO INCHES WHICH WILL INCREASE
THE TSTM POPS TO LIKELY OVER NORTH GA ON FRIDAY WITH GOOD CHANCE
CENTRAL GA. ABUNDANT CLOUD COVER WILL HOLD TEMPS DOWN WITH MARGINAL
INSTABILITY EXPECTED.

GENERALLY A BLEND OF THE MET/MAV MOS GUIDANCE TEMPS WERE USED.

16

&&

.CLIMATE...

RECORDS FOR 07-07

               MAX TEMPERATURE         MIN TEMPERATURE
  STATION      HIGH        LOW         HIGH        LOW
  -------  ----------  ----------  ----------  ----------
   KAHN     104 1930     68 1979     76 1930     59 1972
                                        1902
   KATL     100 1954     66 1892     76 1931     58 1940
                                        1902
                                        1881
   KCSG     104 1977     76 1994     79 1990     63 1988
                                                    1964
   KMCN     104 1990     74 1916     76 1931     40 1897

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
LAST FEW MODEL RUNS INDICATE A GOOD SOUTHWARD PUSH OF FRONTAL
BOUNDARY...ESPECIALLY THE GFS WHICH SHOWS SIGNIFICANT DRYING FOR
THE NORTHERN HALF OF THE AREA THROUGH THE WEEKEND. NOT READY TO BITE
JUST YET AND WILL KEEP LOW END CHANCE POPS IN FOR NOW FOR THE
NORTH WITH MID RANGE POPS TO THE SOUTH. REGARDLESS...LOOKS LIE
TEMPS WILL BE ON THE INCREASE WITH VALUES APPROACHING THE CENTURY
MARK AS HEIGHTS RISE. ANY STORM DEVELOPMENT WILL LACK SIGNIFICANT
UPDRAFTS AS LAPSE RATES ARE WEAK DUE TO MID LEVEL TEMPS INCREASING
TO 3 C FOR THE WEEKEND INTO EARLY NEXT WEEK.

AVIATION...
18Z UPDATE...
WITH DAYTIME HEATING TAF SITES APPROACHING CONVECTIVE TEMPERATURES
AND WITH LINGERING BOUNDARIES FROM AFTERNOON CONVECTION OF THE
PAST FEW DAYS...EXPECT SCATTERED THUNDERSTORM TO ONCE AGAIN
DEVELOP. TIMING OF WHEN INDIVIDUAL CELLS IMPACT AIRPORTS TOUGH TO
NAIL DOWN. OTHER WISE WEST WINDS WITH VFR CONDITIONS OUTSIDE OF
CONVECTION ANTICIPATED.

//ATL CONFIDENCE...18Z UPDATE...
HIGH CONFIDENCE ON VISIBILITY/CIGS/WINDS
MEDIUM CONFIDENCE ON CONVECTIVE TIMING

12

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          69  92  69  91 /  30  60  40  70
ATLANTA         72  91  72  90 /  30  30  20  60
BLAIRSVILLE     64  83  65  85 /  20  40  30  70
CARTERSVILLE    67  92  69  91 /  20  40  20  70
COLUMBUS        73  95  73  93 /  30  50  20  40
GAINESVILLE     69  89  71  89 /  30  40  30  70
MACON           71  95  72  94 /  30  50  40  50
ROME            69  92  70  93 /  20  40  20  70
PEACHTREE CITY  68  92  69  91 /  30  30  20  60
VIDALIA         73  94  75  94 /  30  30  20  40

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

Hazardous weather outlook, Jul 6, 5:59 PM EDT, 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
559 PM EDT WED JUL 6 2011

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-071000-
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-
559 PM EDT WED JUL 6 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TONIGHT
ISOLATED TO SCATTERED THUNDERSTORMS EXPECTED TONIGHT...MAINLY
DURING THE EVENING.

.SYNOPSIS...
THE INTERACTION OF ABUNDANT MOISTURE AND A WEAK UPPER LEVEL
DISTURBANCE WILL CONTINUE TO PRODUCE ISOLATED TO SCATTERED
THUNDERSTORMS ACROSS NORTH AND CENTRAL GEORGIA THROUGH THIS
EVENING.

.PRIMARY HAZARDS...
THE PRIMARY HAZARDS FROM THE THUNDERSTORMS WILL BE GUSTY WINDS TO
40 MPH...DIME SIZE HAIL...LOCALLY HEAVY RAIN AND CLOUD TO GROUND
LIGHTNING.

.DISCUSSION...
LOW LEVEL MOISTURE...THE HEATING OF THE DAY AND A WEAK UPPER LEVEL
DISTURBANCE WILL INTERACT TO PRODUCE ISOLATED TO SCATTERED
THUNDERSTORMS ACROSS NORTH AND CENTRAL GEORGIA TONIGHT. THE BEST
CHANCE FOR THUNDERSTORMS WILL BE THROUGH THE EVENING HOURS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
THUNDERSTORMS EXPECTED EACH AFTERNOON AND EVENING THROUGH TUESDAY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.

In the hours before

Special weather statement, Jul 6, 3:44 PM EDT, 2 hours 28 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
344 PM EDT WED JUL 6 2011

GAZ002-003-062015-
344 PM EDT WED JUL 6 2011

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT LIGHTNING IN WALKER AND
CATOOSA COUNTIES UNTIL 415 PM EDT...

AT 341 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER CHICKAMAUGA...MOVING SOUTHEAST AT 5 MPH.

LIGHTNING DETECTION SYSTEMS INDICATE NUMEROUS CLOUD-TO-GROUND
LIGHTNING STRIKES ACROSS WALKER AND CATOOSA COUNTIES...INCLUDING
AREAS AROUND CHICKAMAUGA...WOOD STATION...BLUE SPRING...BEAUMONT...
NAOMI...ROCK SPRING AND NOBLE. RESIDENTS IN THIS AREA SHOULD STAY
INDOORS. ELECTRICAL APPLIANCES AND TELEPHONES SHOULD NOT BE USED
UNLESS IN AN EMERGENCY.

&&

LAT...LON 3486 8506 3482 8507 3482 8513 3477 8514
      3473 8517 3472 8516 3465 8522 3484 8540
      3493 8530
TIME...MOT...LOC 1944Z 306DEG 5KT 3486 8531

Special weather statement, Jul 6, 3:47 PM EDT, 2 hours 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
347 PM EDT WED JUL 6 2011

GAZ086-062015-
347 PM EDT WED JUL 6 2011

...SIGNIFICANT WEATHER ADVISORY FOR LOCALLY HEAVY RAIN AND 40 MPH
WINDS IN EMANUEL COUNTY UNTIL 415 PM EDT...

AT 346 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER SUMMERTOWN...AND MOVING EAST AT 5 MPH.

WIND GUSTS OF 40 MPH...FREQUENT LIGHTNING AND BRIEF HEAVY RAIN ARE
LIKELY AS THIS STORM MOVES ACROSS EMANUEL COUNTY THROUGH 415 PM EDT.
SOME LOCATIONS IN THE PATH OF THE STORM INCLUDE MODOC...COLEMANS
LAKE...SUMMERTOWN...SWAINSBORO...THREE POINTS...CANOOCHEE AND
GARFIELD.

&&

LAT...LON 3259 8234 3281 8240 3282 8239 3281 8237
      3284 8233 3281 8222 3282 8215 3281 8213
      3266 8208 3261 8200 3260 8200
TIME...MOT...LOC 1946Z 255DEG 6KT 3272 8224

Special weather statement, Jul 6, 4:42 PM EDT, 1 hour 30 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
442 PM EDT WED JUL 6 2011

GAZ097-062130-
442 PM EDT WED JUL 6 2011

...SIGNIFICANT WEATHER ADVISORY FOR 40 MPH WINDS AND FREQUENT
CLOUD-TO-GROUND LIGHTNING IN LAURENS COUNTY UNTIL 530 PM EDT...

AT 437 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER MONTROSE...MOVING EAST AT 10 MPH.

FREQUENT CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THESE
THUNDERSTORMS. RESIDENTS IN THIS AREA SHOULD REMAIN INDOORS AND AWAY
FROM DOORS...WINDOWS...AND ELECTRICAL APPLIANCES. LAND-LINE
TELEPHONES SHOULD NOT BE USED UNLESS IN AN EMERGENCY.

WIND GUSTS OF 40 MPH WILL BE POSSIBLE WITH THESE THUNDERSTORMS.
THESE WINDS MAY BLOW DOWN SMALL OR WEAK TREES AND IMPACT A FEW POWER
LINES. LOOSE AND LIGHT WEIGHT OBJECTS MAY BE BLOWN ABOUT.

&&

LAT...LON 3258 8323 3267 8306 3271 8295 3271 8291
      3253 8282 3245 8315
TIME...MOT...LOC 2040Z 248DEG 8KT 3256 8312

19

Special weather statement, Jul 6, 5:24 PM EDT, 48 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
524 PM EDT WED JUL 6 2011

GAZ112-113-062215-
524 PM EDT WED JUL 6 2011

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT CLOUD-TO-GROUND
LIGHTNING AND DIME-SIZED HAIL IN TOOMBS AND MONTGOMERY COUNTIES
UNTIL 615 PM EDT...

AT 520 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF STRONG THUNDERSTORMS DEVELOPING ACROSS CENTRAL MONTGOMERY
AND CENTRAL TO NORTHERN TOOMBS COUNTIES FROM MOUNT VERNON...TO
VIDALIA...TO SANTA CLAUS...MOVING SOUTH AT 5 MPH.

FREQUENT CLOUD-TO-GROUND LIGHTNING IS OCCURRING WITH THESE
THUNDERSTORMS. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES
NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. RESIDENTS IN THE AREA SHOULD
REMAIN INDOORS AND AWAY FROM ELECTRICAL APPLIANCES...DOORS...AND
WINDOWS UNTIL THE STORMS HAVE PASSED. LAND-LINE TELEPHONES SHOULD
ONLY BE USED IN AN EMERGENCY.

&&

LAT...LON 3195 8229 3193 8231 3196 8244 3196 8248
      3194 8249 3195 8254 3198 8254 3204 8261
      3218 8263 3223 8244 3235 8241 3232 8236
      3229 8235 3231 8223 3225 8220 3215 8218
      3191 8223
TIME...MOT...LOC 2123Z 345DEG 6KT 3213 8246

Special weather statement, Jul 6, 5:32 PM EDT, 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
532 PM EDT WED JUL 6 2011

GAZ076-086-062200-
532 PM EDT WED JUL 6 2011

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT LIGHTNING IN NORTHERN
EMANUEL AND SOUTHERN JEFFERSON COUNTIES UNTIL 600 PM EDT...

AT 530 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS ALONG THE JEFFERSON...EMANUEL COUNTY LINE
BETWEEN BLUNDALE AND WADLEY...MOVING EAST AT 20 MPH.

FREQUENT CLOUD-TO-GROUND LIGHTNING CAN BE EXPECTED WITH THESE
THUNDERSTORMS. RESIDENTS IN THIS AREA SHOULD REMAIN INDOORS AND AWAY
FROM DOORS...WINDOWS...AND ELECTRICAL APPLIANCES. LAND-LINE
TELEPHONES SHOULD NOT BE USED UNLESS IN AN EMERGENCY.

&&

LAT...LON 3255 8202 3254 8204 3255 8208 3253 8214
      3270 8248 3275 8244 3279 8248 3288 8245
      3286 8230 3283 8231 3281 8222 3282 8215
      3266 8208 3261 8200
TIME...MOT...LOC 2131Z 284DEG 16KT 3278 8238

Special weather statement, Jul 6, 6:12 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
612 PM EDT WED JUL 6 2011

GAZ086-062245-
612 PM EDT WED JUL 6 2011

...SIGNIFICANT WEATHER ADVISORY FOR EXCESSIVE LIGHTNING IN EMANUEL
COUNTY UNTIL 645 PM EDT...

AT 608 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER STILLMORE...MOVING SOUTHEAST AT 10 MPH.

EXCESSIVE CLOUD-TO-GROUND LIGHTNING IS OCCURRING WITH THESE
THUNDERSTORMS. MOVE INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES
NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. RESIDENTS IN THE AREA SHOULD
REMAIN INDOORS AND AWAY FROM ELECTRICAL APPLIANCES...DOORS...AND
WINDOWS UNTIL THE STORMS HAVE PASSED. LAND-LINE TELEPHONES SHOULD
ONLY BE USED IN AN EMERGENCY.

&&

LAT...LON 3248 8217 3241 8219 3236 8224 3234 8223
      3231 8223 3230 8230 3234 8236 3253 8218
      3250 8215
TIME...MOT...LOC 2212Z 318DEG 11KT 3239 8224

19

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 8:32 PM EDT	Special Weather Statement	FFC	Hall	43 min
Jul 5, 8:43 PM EDT	Special Weather Statement	FFC	Gwinnett	32 min
Jul 5, 8:55 PM EDT	Severe Thunderstorm Warning	FFC	Gwinnett	41 min
Jul 5, 9:03 PM EDT	Special Weather Statement	FFC	Polk	27 min
Jul 5, 10:32 PM EDT	Special Weather Statement	FFC	Douglas, Paulding	28 min
Jul 5, 11:02 PM EDT	Special Weather Statement	FFC	Cobb	43 min
Jul 6, 1:30 PM EDT	Special Weather Statement	FFC	Newton, Rockdale	45 min
Jul 6, 2:03 PM EDT	Special Weather Statement	FFC	Oglethorpe	27 min
Jul 6, 3:24 PM EDT	Special Weather Statement	FFC	Houston, Peach	36 min
Jul 6, 3:44 PM EDT	Special Weather Statement	FFC	Walker	31 min
Jul 6, 3:47 PM EDT	Special Weather Statement	FFC	Emanuel	28 min
Jul 6, 4:42 PM EDT	Special Weather Statement	FFC	Laurens	48 min
Jul 6, 5:24 PM EDT	Special Weather Statement	FFC	Montgomery, Toombs	51 min
Jul 6, 5:32 PM EDT	Special Weather Statement	FFC	Emanuel	28 min
Jul 6, 7:59 PM EDT	Special Weather Statement	FFC	Putnam	31 min

Nearby

Special Weather Statements in Georgia, 2011 Every special weather statement in 2011

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.