Alert archive / Georgia / Special Weather Statements in 2013

Special Weather Statement, NWS Atlanta, GA

March 18, 20135 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Mar 18, 2013, 8:14 PM EDT for 5 counties in Georgia. It was in force for 61 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 18, 2013, 8:14 PM EDT (00:14 UTC)
Expired: Mar 18, 2013, 9:15 PM EDT
In force: 61 min
Issued by: NWS Atlanta, GA

Counties Emanuel County, GA, Jefferson County, GA, Johnson County, GA, Laurens County, GA, Treutlen County, GA

The radar

The Robins AFB radar (KJGX), 84 km from the middle of the area, began a volume at 00:17 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, 0.2 hours before the alert went out and 209 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1166 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 237 m²/s²
0-3 km storm-relative helicity: 278 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 Mar 18, 7:54 PM EDT, 20 minutes earlier.

Area forecast discussion, Mar 18, 7:54 PM EDT, 20 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
754 PM EDT MON MAR 18 2013

.PREV DISCUSSION... /ISSUED 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...
00Z UPDATE...
LINE OF TSRA MOVING THROUGH MCN AND CSG AT TAF TIME...EXPECT
STRONG GUSTY WINDS /40KT AND HIGHER/ AND POSSIBLY HAIL...SHOULD BE
OUT IN THE NEXT HOUR OR SO. CIGS AND VSBYS ARE UP AND DOWN AT TAF
TIME...BUT EXPECT WIDESPREAD LOW MVFR TO IFR CIGS WITH MVFR VSBYS
MOST OF THE NIGHT. EXPECT A QUICK CLEARING TREND TUESDAY
MORNING...GENERALLY BY 12Z. NORTHWEST WINDS 10-15KT GUSTING AROUND
20KT FOR MOST OF THE DAY TUESDAY.

//ATL CONFIDENCE...00Z UPDATE...
MEDIUM ON TIMING OF CIGS.
LOW ON POTENTIAL LIFR CIGS.
MEDIUM ON WIND SHIFT TIMING.
HIGH ON WIND SPEEDS.

TDP

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          49  66  37  64 /  90  10   5   5
ATLANTA         46  62  40  61 /  90   5   5   5
BLAIRSVILLE     38  56  31  54 /  70   5   5   5
CARTERSVILLE    44  61  34  61 /  60   5   5   5
COLUMBUS        54  69  42  66 / 100  10   5   5
GAINESVILLE     44  63  38  60 /  90   5   5   5
MACON           56  70  39  67 / 100  20   5   5
ROME            43  62  34  61 /  30   5  10   5
PEACHTREE CITY  47  64  33  62 / 100   5   5   5
VIDALIA         60  74  46  68 /  80  30   5  10

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
SEVERE THUNDERSTORM WATCH UNTIL 2 AM EDT TUESDAY FOR THE
FOLLOWING ZONES: EMANUEL...JOHNSON...LAURENS...MONTGOMERY...
TELFAIR...TOOMBS...TREUTLEN...WHEELER.

TORNADO WATCH UNTIL 10 PM EDT THIS EVENING FOR THE FOLLOWING
ZONES: BALDWIN...BIBB...BLECKLEY...CHATTAHOOCHEE...CRAWFORD...
CRISP...DODGE...DOOLY...GLASCOCK...GREENE...HANCOCK...HOUSTON...
JASPER...JEFFERSON...JONES...MACON...MARION...MONROE...MORGAN...
MUSCOGEE...PEACH...PULASKI...PUTNAM...SCHLEY...STEWART...
SUMTER...TALBOT...TAYLOR...TWIGGS...UPSON...WARREN...
WASHINGTON...WEBSTER...WILCOX...WILKINSON.

&&

Hazardous weather outlook, Mar 18, 8:11 PM EDT, 3 minutes before

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

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-200015-
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-
811 PM EDT MON MAR 18 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA.

.DAY ONE...TONIGHT...
SCATTERED SEVERE THUNDERSTORMS EXPECTED ACROSS PARTS OF CENTRAL
GEORGIA TONIGHT...

A LINE OF STRONG TO SEVERE STORMS CONTINUED TO MOVE ACROSS CENTRAL
GEORGIA THIS EVENING. THIS LINE WILL CONTINUE SINKING SLOWLY SOUTH
AND SHOULD BE OUT OF CENTRAL GEORGIA BY 3 AM. NUMEROUS REPORTS OF
TREES DOWN...HAIL UP TO BASEBALL SIZE...AND PROPERTY DAMAGE HAVE
BEEN REPORTED WITH THESE STORMS.

THE ATMOSPHERE WILL REMAIN VERY UNSTABLE AHEAD OF THIS LINE AND
THEREFORE THESE STORMS SHOULD MAINTAIN THEIR STRENGTH THROUGH 3 AM.

IF YOU LIVE ACROSS CENTRAL GEORGIA SOUTH OF A LINE FROM
COLUMBUS...TO MACON..TO WARRENTON...STAY ALERT TO THE LATEST
WARNINGS AND BE PREPARED TO MOVE TO SAFETY.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...
A QUICK MOVING STORM SYSTEM WILL MOVE ACROSS THE TENNESSEE VALLEY
THURSDAY NIGHT AND FRIDAY MORNING BRINGING A CHANCE OF RAIN OR
SNOW TO EXTREME NORTH GEORGIA. ACCUMULATIONS SHOULD BE LIGHT.

ANOTHER STORM SYSTEM WILL MOVE INTO NORTH AND CENTRAL GEORGIA THIS
WEEKEND BRINGING A CHANCE THUNDERSTORMS SATURDAY AND AGAIN ON
SUNDAY. SOME OF THE STORMS ON SUNDAY COULD BE STRONG.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ARE ENCOURAGED TO SUBMIT REPORTS OF SEVERE WEATHER THROUGH
THE WEB BY GOING TO WEATHER.GOV/ATLANTA.

In the hours before

Local storm report, Mar 18, 7:46 PM EDT, 28 minutes before

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

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

0649 PM     TSTM WND DMG     HAMILTON                32.76N 84.88W
03/18/2013                   HARRIS             GA   911 CALL CENTER

            NUMEROUS TREES DOWN THROUGHOUT HARRIS COUNTY.

&&

AGIBBS

Local storm report, Mar 18, 7:56 PM EDT, 18 minutes before

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

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

0742 PM     TSTM WND GST     5 NNE CENTERVILLE       32.69N 83.65W
03/18/2013  M52 MPH          BIBB               GA   ASOS

            KMCN ASOS MEASURED 52KT GUST.

&&

TDP

Local storm report, Mar 18, 7:57 PM EDT, 17 minutes before

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

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

0742 PM     TSTM WND GST     5 NNE CENTERVILLE       32.69N 83.65W
03/18/2013  M60.00 MPH       BIBB               GA   ASOS

            KMCN ASOS MEASURED 52KT GUST.

&&

TDP

Local storm report, Mar 18, 7:59 PM EDT, 15 minutes before

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

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

0745 PM     TSTM WND GST     2 NE WARNER ROBINS      32.64N 83.60W
03/18/2013  M56 MPH          HOUSTON            GA   ASOS

            KWRB MEASURED A 49KT WIND GUST.

&&

TDP

Local storm report, Mar 18, 8:12 PM EDT, 2 minutes before

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

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

0714 PM     HAIL             4 S COLUMBUS            32.41N 84.99W
03/18/2013  E2.00 INCH       RUSSELL            AL   PUBLIC

            UP TO 2 INCH HAIL COVERING THE GROUND. HAIL FELL FOR 10
            MINUTES.

&&

KFRANTZ

Special weather statement, Mar 18, 8:14 PM EDT, 0 minutes before

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

GAZ074-076-085-086-097-098-109-190115-
814 PM EDT MON MAR 18 2013

...SIGNIFICANT WEATHER ADVISORY FOR DIME SIZED HAIL AND 50 MPH WINDS
IN WASHINGTON...TREUTLEN...LAURENS...JOHNSON...DODGE...EMANUEL AND
JEFFERSON COUNTIES UNTIL 915 PM EDT...

AT 812 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM 8 MILES NORTHWEST OF DOWNS TO MONTROSE...
MOVING EAST AT 45 MPH.

WIND GUSTS OF 50 MPH ARE LIKELY AS THESE STORMS MOVE ACROSS
WASHINGTON...TREUTLEN...LAURENS...JOHNSON...DODGE...EMANUEL AND
JEFFERSON COUNTIES THROUGH 915 PM EDT. SOME LOCATIONS IN THE PATH OF
THESE STORMS INCLUDE CHAPPELLS MILL...MONTROSE...ROWLAND...DUDLEY...
TENNILLE...DEXTER...TUCKERS CROSSROAD...DOWNS...HARLOW...HARRISON...
EAST DUBLIN...DUBLIN...DONOVAN...WRIGHTSVILLE AND GRANGE.

THESE WIND GUSTS MAY PRODUCE MINOR DAMAGE TO TREE LIMBS AND BLOW
LIGHT...UNSECURED OBJECTS AROUND.

&&

LAT...LON 3254 8203 3255 8208 3251 8215 3236 8224
      3231 8223 3229 8231 3229 8235 3235 8241
      3232 8260 3243 8318 3244 8319 3243 8315
      3258 8323 3271 8296 3312 8267 3306 8228
      3293 8227 3284 8231 3282 8215 3259 8200
TIME...MOT...LOC 0014Z 277DEG 40KT 3316 8274 3279 8292
          3251 8313

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 8:00 PM EDT	Severe Thunderstorm Warning	FFC	Macon, Marion, Schley, Sumter, Taylor, Webster	30 min
Mar 18, 8:20 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Emanuel, Jefferson, Johnson, Laurens, Montgomery and 4 more	40 min
Mar 18, 8:26 PM EDT	Severe Thunderstorm Warning	FFC	Jefferson, Washington	34 min
Mar 18, 8:38 PM EDT	Severe Thunderstorm Warning	FFC	Glascock, Jefferson	37 min
Mar 18, 8:44 PM EDT	Severe Thunderstorm Warning	FFC	Dodge, Pulaski, Telfair, Wilcox	61 min
Mar 18, 8:53 PM EDT	Special Weather Statement	FFC	Crisp, Dooly, Sumter	37 min
Mar 18, 8:53 PM EDT	Severe Thunderstorm Warning	FFC	Emanuel, Montgomery, Toombs, Treutlen, Wheeler	52 min
Mar 18, 9:43 PM EDT	Special Weather Statement	FFC	Montgomery, Telfair, Toombs, Wheeler	32 min
Mar 19, 3:49 PM EDT	Freeze Watch	FFC	Banks, Barrow, Bartow, Butts, Carroll, Catoosa and 48 more	12 hr

Nearby

Special Weather Statements in Georgia, 2013 Every 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.