Alert archive / Georgia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 46, NWS Atlanta, GA

March 18, 201311 counties in Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 18, 2013, 5:45 PM EDT for 11 counties in Georgia. It was in force for 60 min. 6 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 18, 2013, 5:45 PM EDT (21:45 UTC)
Expired: Mar 18, 2013, 6:45 PM EDT
In force: 60 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Carroll County, GA, Clayton County, GA, Cobb County, GA, Coweta County, GA, DeKalb County, GA, Douglas County, GA, Fayette County, GA, Fulton County, GA, Haralson County, GA, Paulding County, GA, Polk County, GA

The radar

The Atlanta radar (KFFC), 61 km from the middle of the area, began a volume at 21:44 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.

What was reported inside it

Time	Report	Where	Remark
Mar 18, 5:49 PM EDT	TSTM WND DMG	Carrollton, GA	PUBLIC REPORTED ROOF WAS BLOWN OFF OF AN AUTO SALES STORE.
Mar 18, 5:55 PM EDT	HAIL 1	Union City, GA
Mar 18, 6:02 PM EDT	HAIL 1	Hartsfield-Jackson Airp, GA
Mar 18, 6:04 PM EDT	HAIL 1.75	Lithia Springs, GA	GOLFBALL SIZED-HAIL OCCURRED AND NUMEROUS TREES AND POWER LINES WERE BLOWN DOWN IN THE LITHIA SPRINGS AREA. THREE VEHICLES WERE DAMAGED BY HAIL AND THREE WERE DAMAGED BY TREES. FIVE HOMES WERE DAMAGED BY FALLING TREES AND SEVERAL ROADS WERE BLOCKED.
Mar 18, 6:10 PM EDT	TSTM WND DMG	5 N Newnan, GA	COWETA COUNTY EM RELAYED A REPORT OF TREES DOWN ALL ACROSS THE COUNTY.
Mar 18, 6:10 PM EDT	HAIL 1.75	Hartsfield-Jackson Airp, GA	GOLF BALL HAIL AT THE AIRPORT. NUMEROUS WINDSHIELDS BROKIN ON I85 SOUTH.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 6 storm reports to this severe thunderstorm warning; the first came 4 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 18, 2:31 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Mar 18, 4:16 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.8 hours before the alert went out and 61 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: 3 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 540 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 153 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.

277 
WUUS52 KFFC 182145
SVRFFC
GAC045-063-067-077-089-097-113-121-143-223-233-182245-
/O.NEW.KFFC.SV.W.0046.130318T2145Z-130318T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
545 PM EDT MON MAR 18 2013

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN CLAYTON COUNTY IN NORTH CENTRAL GEORGIA
  COBB COUNTY IN NORTH CENTRAL GEORGIA
  NORTHWESTERN DEKALB COUNTY IN NORTH CENTRAL GEORGIA
  DOUGLAS COUNTY IN NORTH CENTRAL GEORGIA
  NORTHWESTERN FAYETTE COUNTY IN NORTH CENTRAL GEORGIA
  FULTON COUNTY IN NORTH CENTRAL GEORGIA
  CARROLL COUNTY IN NORTHWEST GEORGIA
  HARALSON COUNTY IN NORTHWEST GEORGIA
  PAULDING COUNTY IN NORTHWEST GEORGIA
  POLK COUNTY IN NORTHWEST GEORGIA
  NORTHERN COWETA COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 645 PM EDT

* AT 540 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZED
  HAIL...AND DESTRUCTIVE WINDS UP TO 70 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM ARAGON TO BUCHANAN TO BOWDON...
  MOVING EAST AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ROOPVILLE...TEMPLE...BRASWELL...CARROLLTON...VILLA RICA...DALLAS...
  WHITESBURG...HIRAM...ACWORTH...DOUGLASVILLE...POWDER SPRINGS...
  LITHIA SPRINGS...CHATTAHOOCHEE HILL COUNTRY...KENNESAW...AUSTELL...
  MARIETTA...PALMETTO...SMYRNA...TYRONE...FAIRBURN...MOUNTAIN PARK...
  UNION CITY...ROSWELL...SANDY SPRINGS...EAST POINT...COLLEGE PARK...
  BUCKHEAD...MIDTOWN...ATLANTA...HARTSFIELD-JACKSON AIRPORT...
  DUNWOODY...ALPHARETTA...HAPEVILLE...GRANT PARK-ZOO ATLANTA...
  CHAMBLEE...DRUID HILLS...DORAVILLE...DECATUR...AVONDALE ESTATES...
  CLARKSTON AND TUCKER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ALTHOUGH CURRENT DATA DOES NOT INDICATE THE EXISTENCE OF A TORNADO...A TORNADO
MAY QUICKLY DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO
A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR
SMALL INTERIOR ROOM.

IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT MONDAY EVENING
FOR NORTHWESTERN GEORGIA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR NORTHWEST GEORGIA.

&&

LAT...LON 3408 8492 3407 8442 3410 8442 3412 8439
      3413 8426 3409 8422 3400 8422 3396 8428
      3388 8421 3382 8421 3341 8456 3342 8501
      3344 8531 3405 8542
TIME...MOT...LOC 2144Z 268DEG 50KT 3405 8504 3379 8509
          3352 8520

$$

1 follow-up statement

544 
WWUS52 KFFC 182228
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
628 PM EDT MON MAR 18 2013

GAC045-077-097-143-223-233-182236-
/O.CAN.KFFC.SV.W.0046.000000T0000Z-130318T2245Z/
POLK GA-PAULDING GA-CARROLL GA-COWETA GA-DOUGLAS GA-HARALSON GA-
628 PM EDT MON MAR 18 2013

...THE SEVERE THUNDERSTORM WARNING FOR HARALSON...DOUGLAS...NORTHERN
COWETA...CARROLL...PAULDING AND POLK COUNTIES IS CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.

IF YOU SAW WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT MONDAY EVENING
FOR NORTHWESTERN GEORGIA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR NORTHWEST GEORGIA.

LAT...LON 3381 8455 3407 8455 3407 8442 3410 8442
      3412 8439 3413 8426 3409 8422 3402 8422
      3396 8428 3388 8421 3382 8421 3341 8456
      3341 8462 3348 8463 3350 8461 3351 8470
TIME...MOT...LOC 2226Z 268DEG 50KT 3405 8435 3382 8429
          3350 8444

$$

GAC063-067-089-113-121-182245-
/O.CON.KFFC.SV.W.0046.000000T0000Z-130318T2245Z/
COBB GA-DEKALB GA-FAYETTE GA-CLAYTON GA-FULTON GA-
628 PM EDT MON MAR 18 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR FULTON...NORTHWESTERN CLAYTON...NORTHWESTERN FAYETTE...
NORTHWESTERN DEKALB AND EASTERN COBB COUNTIES...

AT 622 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZED HAIL...AND DAMAGING WINDS UP TO 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM MOUNTAIN PARK TO LA VISTA TO
SANDY CREEK...MOVING EAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DORAVILLE...SCOTTDALE...ALPHARETTA...AVONDALE ESTATES...CLARKSTON AND
TUCKER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...HAIL OR FLOODING...WAIT UNTIL THE STORM HAS
PASSED...AND THEN CALL THE NATIONAL WEATHER SERVICE TOLL FREE AT 1 8
6 6 7 6 3 4 4 6 6. YOU CAN ALSO TWEET YOUR REPORT USING HASHTAG GAWX.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT MONDAY EVENING
FOR NORTHWESTERN GEORGIA.

A SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR NORTHWEST GEORGIA.

&&

LAT...LON 3381 8455 3407 8455 3407 8442 3410 8442
      3412 8439 3413 8426 3409 8422 3402 8422
      3396 8428 3388 8421 3382 8421 3341 8456
      3341 8462 3348 8463 3350 8461 3351 8470
TIME...MOT...LOC 2226Z 268DEG 50KT 3405 8435 3382 8429
          3350 8444

$$

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Mar 18, 3:57 PM EDT, 1 hour 48 minutes earlier.

Area forecast discussion, Mar 18, 3:57 PM EDT, 1 hour 48 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
357 PM EDT MON MAR 18 2013

.SHORT TERM /TONIGHT THROUGH TUESDAY/...
COLD FRONT CURRENTLY STRETCHES FROM THE SOUTHERN OHIO VALLEY BACK
THROUGH THE LOWER MISSISSIPPI RIVER VALLEY THIS AFTERNOON. AS THE
FRONT CONTINUES TO MOVE SLOWLY EASTWARD THIS AFTERNOON...THE COLD
AIR WEDGE EAST OF THE APPALACHIANS HAS STRENGTHENED AND BUILT BACK
TO THE WEST. THE AIRMASS UNDER THE SHALLOW WEDGE IS MORE STABLE. THE
COOL AIR WEDGE WILL PLAY AN IMPORTANT ROLE IN WHETHER THUNDERSTORMS
ARE SURFACE BASED VS ELEVATED.

AIRMASS CONTINUES TO DESTABILIZE AHEAD OF THE APPROACHING COLD FRONT
ACROSS MOST LOCALES. THOSE AREAS CURRENTLY RECEIVING BREAKS IN THE
OVC WILL DESTABILIZE THE MOST...AND HAVE HIGHER SURFACE INSTABILITY.
AREAS TO THE NORTH...CLOSEST TO THE WIDESCALE ASCENT...WILL HAVE
BETTER LIFT AND SHEAR. SRH COULD ALSO BE ENHANCED ALONG THE ACTUAL
WEDGE FRONT.

AS THE FRONT MOVES SOUTH ACROSS THE CWFA...IT WILL BECOME DISPLACED
FROM THE BEST MID LEVEL SUPPORT. EXPECT INSTABILITY TO BEGIN
DECREASING WITH THE LOSS OF HEATING...BUT DO THINK THUNDER WILL
CONTINUE THROUGH MOST OF THE NIGHT BUT DECREASE IN COVERAGE.

MODELS STILL SHOWING TWO DISTINCT WAVES OF PRECIP. THE FIRST
WAVE...LATE THIS AFTERNOON AND EVENING...IS CURRENTLY APPROACHING NW
GA. THE SECOND WAVE OF PRECIP WILL COME OVERNIGHT WITH THE ACTUAL
FROPA.

PRECIP WILL END RAPIDLY FROM THE NW EARLY TOMORROW MORNING IN THE
WAKE OF THE FRONT. TEMPS NEAR NORMAL ARE EXPECTED.

NLISTEMAA

.LONG TERM /TUESDAY NIGHT THROUGH MONDAY/...
NO MAJOR CHANGES MADE TO THE LONG TERM SECTION AND FEW MINOR TEMPS
CHANGES. DECIDED TO ADD SOME MIXED PRECIP ACROSS NORTH GA FRIDAY
MORNING WITH RAIN AND SNOW MIX DUE TO TEMPS EXPECTED NEAR
FREEZING.

01

&&

LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/...
EXTENDED PERIOD BEGINS WITH THE DEVELOPMENT OF A LONGWAVE EAST
COAST TROUGH WHICH WILL ALLOW FOR TEMPS DROPPING SOME 10 DEGREES
BELOW NORMAL INITIALLY WITH ADDITIONAL SHOTS OF COOL TO COLD AIR
THROUGH WEEKS END. WILL SEE STRONG IMPULSE PUSH THROUGH THE
TENNESSEE VALLEY EARLY WEDNESDAY WITH MAIN FORCING REMAINING JUST
NORTH OF THE GEORGIA MOUNTAINS. MID LEVEL MOISTURE AND LIFT
SUPPORT SLIGHT CHANCE POPS BUT WITH DEWPOINTS REMAINING IN THE
20S...WILL KEEP POPS IN THE SILENT 10 RANGE FOR NOW. THIS WILL
BEAR WATCHING CLOSELY HOWEVER AS IF PRECIP COULD BE
REALIZED...COLD TEMPS ALOFT AND WET BULB EFFECTS LOOK TO EASILY
SUPPORT WINTRY PRECIP FOR THE NORTHERN TIER.

NEST SYSTEM WILL TAKE SHAPE FRIDAY OVER THE SOUTHERN PLAINS AS
SOUTHERN STREAM OF THE JET GETS ACTIVE AND DEVELOPS LOW PRESSURE
OVER EAST TEXAS. FAVORABLE LARGE SCALE ISENTROPIC ASCENT PROFILE
FOR THE GULF COAST INCLUDING THE LOCAL AREA THROUGH FRIDAY. WILL
HAVE TO MONITOR ONSET CLOSELY FOR THIS SYSTEM AS COLD AIR REMAINS
TRAPPED IN THE MOUNTAINS INITIALLY WHICH COULD LEAD TO ADDITIONAL
WINTRY WX CONCERNS. WARM BELT SHOULD CONTINUE TO LIFT NORTH AS
PRECIP BECOMES MORE ENTRENCHED OVER THE AREA WITH ALL RAIN
EXPECTED FOR THE REMAINDER OF THE TENURE OF THIS STORM SYSTEM.
SIGNIFICANT DIFFERENCES AMONG THE ECMWF AND GFS BY THIS TIME
PERIOD WITH EURO CLEARING IT OUT A BIT FASTER BUT BRINGING IN NEXT
SYSTEM MUCH FURTHER SOUTH THAN GFS. MOST CONFIDENCE IS FOR LATE
FRI AND EARLY SAT AND INCREASED POPS TO HIGH END CHANCE THIS FAR
OUT BUT FORECAST WILL LIKELY REQUIRE SIGNIFICANT TWEAKS WITH
SUBSEQUENT ISSUANCES.

DEESE

AVIATION...
18Z UPDATE...
COLD FRONT CURRENTLY ACROSS NORTHERN AL AND CENTRAL MS. SHOWERS
AND THUNDERSTORMS WILL CONTINUE TO DEVELOP AHEAD OF THE BOUNDARY
AND IMPACT THE TERMINAL SITES THIS AFT/EVE. STORMS SHOULD IMPACT
THE NORTHERN TERMINAL SITES BETWEEN 20Z AND 00Z. FOR THE SOUTHERN
SITES...BETWEEN 21Z AND 01Z. THERE WILL BE A BRIEF BREAK IN THE
PRECIS DURING THE EVENING...BUT WIDESPREAD SHOWERS AND ISOLD TSRA
ARE POSSIBLE ALONG WITH THE FROPA OVERNIGHT.

//ATL CONFIDENCE...18Z UPDATE...
MEDIUM CONFIDENCE ALL ELEMENTS.

NLISTEMAA

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          49  66  37  64 /  90  40   5   5
ATLANTA         46  62  40  61 /  90  30   5   5
BLAIRSVILLE     38  56  31  54 /  70  20   5   5
CARTERSVILLE    44  61  34  61 /  80  20   5   5
COLUMBUS        54  69  42  66 /  60  40   5   5
GAINESVILLE     44  63  38  60 /  90  30   5   5
MACON           56  70  39  67 /  80  50   5   5
ROME            43  62  34  61 /  70  20  10   5
PEACHTREE CITY  47  64  33  62 /  80  30   5   5
VIDALIA         60  74  46  68 /  90  40   5  10

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
SEVERE THUNDERSTORM WATCH UNTIL 10 PM EDT THIS EVENING FOR THE
FOLLOWING ZONES: BARTOW...CATOOSA...CHATTOOGA...DADE...FLOYD...
GORDON...HARALSON...MURRAY...POLK...WALKER...WHITFIELD.

&&

SHORT TERM...NLISTEMAA
LONG TERM....01
AVIATION...NLISTEMAA

Hazardous weather outlook, Mar 18, 2:55 PM EDT, 2 hours 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
255 PM EDT MON MAR 18 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-191900-
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-
255 PM EDT MON MAR 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

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

...A SEVERE THUNDERSTORMS WATCH HAS BEEN ISSUED FOR PORTIONS OF
NORTHWEST GEORGIA...

DISCUSSION...
LOW PRESSURE IS DEVELOPING OVER WESTERN TENNESSEE AND KENTUCKY AS
A COLD FRONT DEVELOPS OVER THE SOUTHERN PLAINS AND LOWER GULF
COAST. AHEAD OF THIS FRONT...AN AREA OF SHOWERS AND EMBEDDED
THUNDERSTORMS HAS ALREADY BEGUN TO MOVE INTO NW GEORGIA. STORMS
WILL INTENSIFY THROUGH THE AFTERNOON AND SPREAD OVER THE REMAINDER
OF THE AREA WITH THE THREAT FOR STRONG TO SEVERE STORMS WITH LARGE
HAIL...DAMAGING WINDS AND A RISK OF AN ISOLATED TORNADO.

A SECONDARY AREA OF SHOWERS AND STRONG TO SEVERE STORMS WILL
DEVELOP ALONG THE ACTUAL COLD FRONT TONIGHT WITH THE AREA OF MAIN
CONCERN SHIFTING TO CENTRAL GEORGIA FOR THE FIRST PART OF THE
OVERNIGHT PERIOD. THE SEVERE THUNDERSTORMS WATCH WILL MOST LIKELY
BE UPDATED TO INCLUDE COUNTIES ACROSS CENTRAL AND SOUTHERN GEORGIA.

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

DISCUSSION...

A DRIER BUT COLDER REGIME WILL TAKE HOLD WEDNESDAY ALTHOUGH WE
WILL NEED TO MONITOR FOR A BRIEF PERIOD OF LIGHT WINTRY PRECIPITATION
OVER THE MOUNTAINS LATE WEDNESDAY. TRANQUIL CONDITIONS IN STORE
UNTIL NEXT STORM SYSTEM TAKES SHAPE FOR THE END OF THE WEEK AND
INTO THE WEEKEND. AT THE ONSET OF PRECIPITATION EARLY FRIDAY
MORNING...A LIGHT CHANCE OF WINTRY PRECIPITATION WILL BE POSSIBLE
FOR THE EXTREME NORTHERN TIER. OTHERWISE...THE EXTENDED PERIOD
WILL FEATURE A CHANCE OF THUNDERSTORMS FOR THE SOUTHERN TIER AND
CONTINUED COOL AND WET FOR THE NORTH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER SHOULD MONITOR FOR POSSIBLE ACTIVATION.

In the hours before

Local storm report, Mar 18, 5:25 PM EDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
525 PM EDT MON MAR 18 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0507 PM     HAIL             1 W BOWDON              33.54N 85.27W
03/18/2013  E2.00 INCH       CARROLL            GA   AMATEUR RADIO

            NUMEROUS HAIL STONES COVERING THE GROUND WERE REPORTED
            NEAR BOWDEN WITH THE LARGEST UP TO TWO INCHES IN
            DIAMETER.

&&

KFRANTZ

Local storm report, Mar 18, 5:28 PM EDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
528 PM EDT MON MAR 18 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0526 PM     HAIL             2 ESE WARESVILLE        33.22N 85.21W
03/18/2013  E1.00 INCH       HEARD              GA   PUBLIC

&&

KFRANTZ

Local storm report, Mar 18, 5:29 PM EDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
529 PM EDT MON MAR 18 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0528 PM     HAIL             DOUGLASVILLE            33.75N 84.75W
03/18/2013  E1.75 INCH       DOUGLAS            GA   AMATEUR RADIO

&&

KFRANTZ

Special weather statement, Mar 18, 5:34 PM EDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
534 PM EDT MON MAR 18 2013

GAZ090-102-182215-
534 PM EDT MON MAR 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR PENNY SIZED HAIL AND 40 MPH WINDS
IN STEWART AND CHATTAHOOCHEE COUNTIES UNTIL 615 PM EDT...

AT 531 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER FLORENCE MARINA STATE PARK...MOVING EAST AT
35 MPH.

THIS STORM HAS THE POTENTIAL TO PRODUCE PENNY SIZED HAIL...FREQUENT
CLOUD TO GROUND LIGHTNING AND WIND GUSTS TO 40 MPH AS IT MOVES ACROSS
STEWART AND CHATTAHOOCHEE COUNTIES THROUGH 615 PM EDT. SOME LOCATIONS
IN THE PATH OF THIS STORM INCLUDE FLORENCE MARINA STATE PARK...
OMAHA...PROVIDENCE CANYON STATE PARK...CHARLES...LOUVALE...RENFROE...
BROOKLYN AND RICHLAND.

A TORNADO WATCH REMAINS IN EFFECT. CONTINUE TO MONITOR NOAA WEATHER
RADIO...WEATHER.GOV OR OTHER MEDIA OUTLETS FOR FURTHER STATEMENTS OR
POSSIBLE WARNINGS ON THESE STORMS.

&&

LAT...LON 3210 8506 3213 8507 3219 8501 3220 8498
      3221 8498 3223 8497 3223 8493 3224 8492
      3228 8467 3206 8464 3205 8506
TIME...MOT...LOC 2134Z 263DEG 31KT 3212 8508

Local storm report, Mar 18, 5:36 PM EDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
536 PM EDT MON MAR 18 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 PM     HAIL             FORT OGLETHORPE         34.95N 85.26W
03/18/2013  E1.00 INCH       CATOOSA            GA   PUBLIC

&&

RWILLIS

Local storm report, Mar 18, 5:41 PM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
541 PM EDT MON MAR 18 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0454 PM     HAIL             4 SW LOOKOUT MOUNTAIN   34.94N 85.41W
03/18/2013  E0.75 INCH       DADE               GA   911 CALL CENTER

            DIME SIZED HAIL WAS REPORTED ON LOOKOUT MOUNTAIN.

&&

KFRANTZ

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 11:42 AM EDT	Special Weather Statement	FFC	Bartow, Cherokee, Pickens	48 min
Mar 18, 3:29 PM EDT	Special Weather Statement	FFC	Catoosa, Dade	46 min
Mar 18, 4:31 PM EDT	Special Weather Statement	FFC	Carroll	29 min
Mar 18, 4:36 PM EDT	Severe Thunderstorm Warning	FFC	Catoosa, Dade, Walker	39 min
Mar 18, 4:40 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Douglas, Haralson, Paulding	50 min
Mar 18, 5:04 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Chattooga, Dade, Floyd, Gordon, Murray and 2 more	56 min
Mar 18, 5:06 PM EDT	Special Weather Statement	FFC	Carroll, Coweta, Heard	24 min
Mar 18, 5:10 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Floyd, Polk	65 min
Mar 18, 5:17 PM EDT	Severe Thunderstorm Warning	FFC	Coweta, Heard, Meriwether, Troup	43 min
Mar 18, 5:21 PM EDT	Severe Thunderstorm Warning	FFC	Cobb, DeKalb, Douglas, Fulton	39 min
Mar 18, 5:24 PM EDT	Severe Thunderstorm Warning	FFC	Carroll, Douglas, Fulton	51 min
Mar 18, 5:25 PM EDT	Severe Thunderstorm Warning	FFC	Harris, Troup	65 min
Mar 18, 5:31 PM EDT	Tornado Warning	FFC	Chattooga, Floyd, Gordon, Murray, Walker, Whitfield	44 min
Mar 18, 5:34 PM EDT	Special Weather Statement	FFC	Stewart	41 min
Mar 18, 5:54 PM EDT	Severe Thunderstorm Warning	FFC	Coweta, Fayette, Meriwether, Pike, Spalding, Troup	51 min
Mar 18, 5:55 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion, Stewart, Webster	65 min
Mar 18, 6:00 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, DeKalb, Fulton, Henry, Newton, Rockdale	45 min
Mar 18, 6:00 PM EDT	Tornado Warning	FFC	Bartow, Cherokee, Cobb, DeKalb, Forsyth, Fulton and 3 more	45 min
Mar 18, 6:08 PM EDT	Severe Thunderstorm Warning	FFC	Bartow, Cherokee, Dawson, Fannin, Forsyth, Gilmer and 5 more	52 min
Mar 18, 6:08 PM EDT	Tornado Warning	FFC	Butts, Lamar, Meriwether, Pike, Spalding	52 min
Mar 18, 6:18 PM EDT	Tornado Warning	FFC	Henry, Newton, Rockdale	42 min
Mar 18, 6:21 PM EDT	Severe Thunderstorm Warning	FFC	Clayton, Fayette, Henry	39 min
Mar 18, 6:21 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Hancock, Jasper, Morgan, Putnam	54 min
Mar 18, 6:26 PM EDT	Severe Thunderstorm Warning	FFC	Harris, Meriwether, Talbot, Taylor, Upson	49 min
Mar 18, 6:36 PM EDT	Severe Thunderstorm Warning	FFC	Macon, Schley, Sumter	39 min
Mar 18, 6:41 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Muscogee	64 min
Mar 18, 6:43 PM EDT	Severe Thunderstorm Warning	FFC	Crawford, Lamar, Meriwether, Monroe, Pike, Upson	47 min
Mar 18, 6:49 PM EDT	Severe Thunderstorm Warning	FFC	Jasper, Morgan, Newton	41 min
Mar 18, 6:53 PM EDT	Severe Thunderstorm Warning	FFC	Butts, Jasper, Jones, Monroe, Putnam, Spalding	37 min
Mar 18, 6:54 PM EDT	Severe Thunderstorm Warning	FFC	Jones, Lamar, Monroe	51 min
Mar 18, 6:56 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Hancock, Putnam	64 min
Mar 18, 7:06 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Dooly, Macon, Schley, Sumter	54 min
Mar 18, 7:18 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Bibb, Crawford, Hancock, Houston, Jefferson and 6 more	57 min
Mar 18, 7:25 PM EDT	Severe Thunderstorm Warning	FFC	Chattahoochee, Marion	50 min
Mar 18, 7:45 PM EDT	Severe Thunderstorm Warning	FFC	Bleckley, Crawford, Dodge, Houston, Macon, Peach and 3 more	60 min
Mar 18, 7:46 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Jefferson, Warren, Washington	59 min
Mar 18, 7:49 PM EDT	Severe Thunderstorm Warning	FFC	Crisp, Dooly, Pulaski, Sumter, Wilcox	56 min
Mar 18, 7:56 PM EDT	Tornado Warning	FFC	Crisp, Dooly, Wilcox	49 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2013 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.