Alert archive / Georgia / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 19, NWS Atlanta, GA

March 28, 2010Lamar County, Upson County, Georgia

NWS Atlanta, GA issued this severe thunderstorm warning at Mar 28, 2010, 7:52 PM EDT for Lamar County, Upson County, Georgia. It was in force for 23 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: Mar 28, 2010, 7:52 PM EDT (23:52 UTC)
Expired: Mar 28, 2010, 8:15 PM EDT
In force: 23 min
Issued by: NWS Atlanta, GA
Area: Storm-based polygon

Counties Lamar County, GA, Upson County, GA

The radar

The Atlanta radar (KFFC), 61 km from the middle of the area, began a volume at 23:54 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.9 hours before the alert went out and 57 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: 30 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 478 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 535 m²/s²
0-3 km storm-relative helicity: 588 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.

869 
WUUS52 KFFC 282352
SVRFFC
GAC171-293-290015-
/O.NEW.KFFC.SV.W.0019.100328T2352Z-100329T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
752 PM EDT SUN MAR 28 2010

THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LAMAR COUNTY IN WEST CENTRAL GEORGIA
  NORTHEASTERN UPSON COUNTY IN WEST CENTRAL GEORGIA

* UNTIL 815 PM EDT

* AT 749 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZED 
  HAIL...AND DAMAGING WINDS UP TO 60 MPH.  THIS STORM WAS LOCATED 
  JUST WEST OF THOMASTON...MOVING NORTHEAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO THE
  ROCK AND YATESVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT 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.

&&

LAT...LON 3310 8405 3295 8404 3293 8406 3293 8411
      3288 8412 3279 8428 3292 8441
TIME...MOT...LOC 2352Z 231DEG 31KT 3289 8432

$$

1 follow-up statement

659 
WWUS52 KFFC 290008
SVSFFC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
808 PM EDT SUN MAR 28 2010

GAC171-293-290017-
/O.EXP.KFFC.SV.W.0019.000000T0000Z-100329T0015Z/
UPSON GA-LAMAR GA-
808 PM EDT SUN MAR 28 2010

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LAMAR AND
NORTHEASTERN UPSON COUNTIES EXPIRES AT 815 PM EDT...

THE STORM THAT EARLIER PROMPTED A SEVERE THUNDERSTORM WARNING FOR 
THESE AREAS HAS WEAKENED AND MOVED INTO MONROE COUNTY. SEVERE 
WEATHER IS NO LONGER INDICATED IN THE INDICATED COUNTIES AT THIS 
TIME.

IF YOU SEE WIND DAMAGE...LARGE HAIL OR SIGNIFICANT FLOODING...WAIT 
UNTIL AFTER 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.

LAT...LON 3310 8405 3295 8404 3293 8406 3293 8411
      3288 8412 3279 8428 3292 8441
TIME...MOT...LOC 0007Z 231DEG 31KT 3297 8420

$$



19

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 28, 6:28 PM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Mar 28, 6:28 PM EDT, 1 hour 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
628 PM EDT SUN MAR 28 2010

SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/...
CURRENT RADAR LOOP SHOWS A LINE OF SHOWERS MOVING INTO NW GA WITH
SOME ISOLATED THUNDERSTORMS EMBEDDED IN IT. THIS LINE IS ASSOCIATED
WITH A COLD FRONT (ORIENTED N TO S OVER CENTRAL AL) THAT IS EXPECTED
TO SWEEP THROUGH GA THIS EVENING/TONIGHT. CURRENTLY THE AIRMASS OVER
GA IS STILL FAIRLY STABLE BUT THE INSTABILITY INDICES ARE SLOWLY
INCREASING WHICH COULD MEAN ISOLATED SEVERE STORMS LATER THIS
AFTERNOON AND EVENING MAINLY ACROSS EASTERN SECTIONS OF THE STATE.
THERE ARE SOME SOUTHERLY LOW LEVEL WINDS BRINGING INCREASED
DEWPOINTS (MID 50S TO NEAR 60) AND HELPING TO SLOWLY DESTABILIZE
THE AIRMASS. ALSO NOTICED ON THE SATELLITE LOOP THAT THE BREAKS IN
THE CLOUD COVER IS BECOMING MORE VISIBLE ALLOWING FOR MORE
DIFFERENTIAL HEATING WHICH SHOULD ALSO ALLOW CAPES TO GET INTO THE
500-700 J/KG RANGE. THE FORECAST SOUNDINGS OVER EASTERN SECTIONS
OF THE STATE SHOW LARGE LOOPING HODOGRAPHS WITH SEMI STEEP MID
LEVEL LAPSE RATES. WITH ALL THIS IN MIND STILL THINK THE
ATMOSPHERE WILL BE FAVORABLE FOR ISOLATED SUPERCELLS PRODUCING
HAIL...DAMAGING WINDS...AND A FEW TORNADOES. ONE GOOD THING IS IT
LOOKS LIKE THINGS STABILIZE FAIRLY QUICKLY AGAIN JUST AFTER SUNSET
AND THE FRONT SHOULD BE EAST OF THE AREA BY 06Z MON. LOOK FOR
PRECIP TO TAPER OFF FROM WEST TO EAST TONIGHT WITH SOME LINGERING
SHOWERS ACROSS NORTH AND EAST GA MON ASSOCIATED WITH THE WRAP
AROUND MOISTURE. FINALLY THE MAIN LOW CENTER MOVES NE TO THE MID
ATLANTIC COAST ALLOWING A VERY LARGE AND STRONG HIGH PRESSURE
RIDGE TO BUILD INTO THE SOUTHEASTERN STATES TUE.

LONG TERM /WEDNESDAY THROUGH SUNDAY/...
ONCE THE RIDGE BUILDS IN TUE IT DOMINATES THE WEATHER PATTERN
THROUGH NEXT WEEKEND. LOOKS LIKE NORTH AND CENTRAL GA WILL NOT SEE
AND PRECIP UNTIL THE NEXT FRONTAL SYSTEM MOVES INTO THE REGION NEXT
SUN/MON. DRY CONDITIONS AND WARMING TEMPERATURES LOOK TO BE THE RULE
FOR THE EXTENDED.

&&

.AVIATION...
A FEW SHOWERS LINGERING OVER WESTERN GEORGIA...THUNDER...IF
ANY...WILL BE ISOLATED AND WILL LEAVE OUT OF TAFS. BY 03Z ALL AREAS
SHOULD BE CLEAR OF SHOWERS/THUNDER WITH WEST WINDS SPREADING ACROSS
THE CWA. OVC035 CIGS AND MVFR CIGS OVER NORTHWEST AL BACK INTO
WESTERN TN DEPICTED WELL BY BOTH GFS/NAM AND WILL USE THEIR TIMING
FOR BRINGING THESE CIGS INTO ALL TAF SITES. CIGS WILL BE SLOW TO
LIFT TOMORROW WITH SOME CAA AND GUSTY WINDS ON MONDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          46  59  39  70  40 /  50  20   5   0   0
ATLANTA         45  58  39  65  43 /  30  10   0   0   0
BLAIRSVILLE     44  51  38  62  33 /  40  20  10   0   0
CARTERSVILLE    43  57  38  66  35 /  20  20   5   0   0
COLUMBUS        46  63  42  69  44 /  40   5   0   0   0
GAINESVILLE     44  55  40  67  42 /  40  20  10   0   0
MACON           47  61  38  70  39 /  60   5   0   0   0
ROME            47  56  41  67  35 /  20  20   0   0   0
PEACHTREE CITY  42  58  35  67  35 /  40  10   0   0   0
VIDALIA         55  63  43  71  44 /  80  10   0   0   0

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
TORNADO WATCH UNTIL 11 PM EDT THIS EVENING FOR THE FOLLOWING
ZONES: BANKS...BARROW...CLARKE...DAWSON...FANNIN...FORSYTH...
GILMER...GLASCOCK...GREENE...GWINNETT...HALL...HANCOCK...
JACKSON...JEFFERSON...LUMPKIN...MADISON...MORGAN...OCONEE...
OGLETHORPE...PICKENS...PUTNAM...TALIAFERRO...TOWNS...UNION...
WALTON...WARREN...WASHINGTON...WHITE...WILKES.

&&

Hazardous weather outlook, Mar 28, 1:39 PM EDT, 6 hours 13 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
139 PM EDT SUN MAR 28 2010

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-291030-
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-
139 PM EDT SUN MAR 28 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT
SCATTERED THUNDERSTORMS EXPECTED THIS AFTERNOON AND EVENING WITH
ISOLATED SEVERE THUNDERSTORMS POSSIBLE.

.SYNOPSIS...
A COLD FRONT WILL APPROACH WEST GEORGIA THIS AFTERNOON...THEN
PUSHING ACROSS NORTH AND CENTRAL GEORGIA DURING THE EVENING HOURS.

.PRIMARY HAZARDS...
DAMAGING WIND AND HAIL WILL BE THE MAIN THREATS ACROSS NORTH AND
CENTRAL GEORGIA. HOWEVER...AN ISOLATED TORNADO IS POSSIBLE....MAINLY
OVER PORTIONS OF EAST CENTRAL GEORGIA DURING THE LATE AFTERNOON AND
EARLY EVENING HOURS.

.DISCUSSION...
AHEAD OF AN APPROACHING COLD FRONT... A BROKEN LINE OF SHOWERS AND
THUNDERSTORMS WILL MOVE ACROSS PARTS OF NORTH AND CENTRAL GEORGIA
THIS AFTERNOON AND EVENING. A WARM...MOIST SOUTHERLY WIND FLOW WILL
INCREASE INSTABILITIES DURING THE AFTERNOON...WITH LIFTED INDICES IN
THE 0 TO -3 RANGE AND CAPES GREATER THAN 500. AS THE LINE OF STORMS
MOVE ACROSS THE AREA... A FEW EMBEDDED THUNDERSTORMS COULD BECOME
SEVERE... MAINLY BETWEEN 4 AND 8 PM WHEN THE INSTABILITIES WILL BE
MORE FAVORABLE FOR STRONG STORM DEVELOPMENT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...
SPOTTERS SHOULD MONITOR THE LATEST INFORMATION FOR POSSIBLE
ACTIVATION ACROSS NORTH AND CENTRAL GEORGIA.

In the hours before

Local storm report, Mar 28, 7:24 PM EDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
724 PM EDT SUN MAR 28 2010

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

0712 PM     HAIL             2 SW REYNOLDS PLANTATIO 33.40N 83.24W
03/28/2010  E1.75 INCH       PUTNAM             GA   PUBLIC

&&
CORRECTED LOCATION

SNELSON

Local storm report, Mar 28, 7:26 PM EDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
726 PM EDT SUN MAR 28 2010

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

0722 PM     HAIL             2 S MOLENA              32.98N 84.50W
03/28/2010  E0.75 INCH       PIKE               GA   AMATEUR RADIO

&&

SNELSON

Special weather statement, Mar 28, 7:26 PM EDT, 26 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
726 PM EDT SUN MAR 28 2010

GAZ068-069-290015-
726 PM EDT SUN MAR 28 2010

...SIGNIFICANT WEATHER ADVISORY FOR PENNY SIZED HAIL IN NORTHWEST
UPSON AND SOUTHERN PIKE COUNTIES UNTIL 815 PM EDT...

AT 721 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER CREST...MOVING NORTHEAST AT 35 MPH.

THIS STORM IS INTENSIFYING RAPIDLY AND IS ALREADY PRODUCING
PENNY-SIZED HAIL NEAR MOLENA.  THIS STORM MAY BECOME SEVERE.

CONTINUE TO MONITOR NOAA WEATHER RADIO...WEATHER.GOV OR OTHER MEDIA
OUTLETS FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS ON THESE STORMS.

19

Special weather statement, Mar 28, 7:30 PM EDT, 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
730 PM EDT SUN MAR 28 2010

GAZ069-079-290000-
730 PM EDT SUN MAR 28 2010

...SIGNIFICANT WEATHER ADVISORY FOR PENNY SIZED HAIL IN NORTHERN
TALBOT AND SOUTHERN UPSON COUNTIES UNTIL 800 PM EDT...

AT 726 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER WOODLAND...MOVING NORTHEAST AT 30 MPH.

THIS STORM IS INTENSIFYING RAPIDLY AND MAY BECOME SEVERE. CONTINUE
TO MONITOR NOAA WEATHER RADIO...WEATHER.GOV OR OTHER MEDIA OUTLETS
FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS ON THESE STORMS.

19

Special weather statement, Mar 28, 7:37 PM EDT, 15 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
737 PM EDT SUN MAR 28 2010

GAZ068-070-290000-
737 PM EDT SUN MAR 28 2010

...SIGNIFICANT WEATHER ADVISORY FOR PENNY SIZED HAIL IN EASTERN PIKE
AND LAMAR COUNTIES UNTIL 800 PM EDT...

AT 731 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER MEANSVILLE...MOVING NORTHEAST AT 40 MPH.
THIS STORM WILL AFFECT AREAS BETWEEN BARNESVILLE AND MILNER.

THE STORM HAS THE POTENTIAL TO BECOME SEVERE AT ANY TIME. CONTINUE
TO MONITOR NOAA WEATHER RADIO...WEATHER.GOV OR OTHER MEDIA OUTLETS
FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS ON THESE STORMS.

19

Local storm report, Mar 28, 7:47 PM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
747 PM EDT SUN MAR 28 2010

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

0730 PM     HAIL             SILOAM                  33.54N 83.08W
03/28/2010  E1.00 INCH       GREENE             GA   PUBLIC

&&

SNELSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 2:20 PM EDT	Tornado Warning	FFC	Whitfield	25 min
Mar 28, 2:43 PM EDT	Tornado Warning	FFC	Murray	36 min
Mar 28, 2:47 PM EDT	Tornado Warning	FFC	Murray, Whitfield	30 min
Mar 28, 3:13 PM EDT	Severe Thunderstorm Warning	FFC	Fannin	35 min
Mar 28, 6:59 PM EDT	Severe Thunderstorm Warning	FFC	Putnam	31 min
Mar 28, 7:05 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Jones, Putnam	25 min
Mar 28, 7:10 PM EDT	Severe Thunderstorm Warning	FFC	Greene, Hancock, Taliaferro, Wilkes	50 min
Mar 28, 7:32 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Jones	29 min
Mar 28, 7:37 PM EDT	Severe Thunderstorm Warning	FFC	Oglethorpe, Wilkes	38 min
Mar 28, 7:40 PM EDT	Severe Thunderstorm Warning	FFC	Houston, Macon, Peach	50 min
Mar 28, 7:46 PM EDT	Severe Thunderstorm Warning	FFC	Lamar	24 min
Mar 28, 7:47 PM EDT	Severe Thunderstorm Warning	FFC	Baldwin, Hancock, Putnam	58 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2010 Every severe thunderstorm warning in 2010

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.