Alert archive / Georgia / Special Weather Statements in 2013

Special Weather Statement, NWS Atlanta, GA

July 2, 2013Glascock County, Johnson County, Washington County, Georgia

NWS Atlanta, GA issued this special weather statement at Jul 2, 2013, 6:39 PM EDT for Glascock County, Johnson County, Washington County, Georgia. It was in force for 21 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 2, 2013, 6:39 PM EDT (22:39 UTC)
Expired: Jul 2, 2013, 7:00 PM EDT
In force: 21 min
Issued by: NWS Atlanta, GA

Counties Glascock County, GA, Johnson County, GA, Washington County, GA

The radar

The Robins AFB radar (KJGX), 75 km from the middle of the area, began a volume at 22:42 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 12:00Z, 10.7 hours before the alert went out and 170 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: 667 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 462 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 81 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.5

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 2, 3:41 PM EDT, 2 hours 58 minutes earlier.

Area forecast discussion, Jul 2, 3:41 PM EDT, 2 hours 58 minutes before

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Hazardous weather outlook, Jul 2, 3:19 PM EDT, 3 hours 20 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
319 PM EDT TUE JUL 2 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-031930-
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-
319 PM EDT TUE JUL 2 2013

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

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

.DAY ONE...THIS AFTERNOON AND TONIGHT...
LATEST ANALYSIS SHOWS A LARGE UPPER LEVEL TROUGH CENTERED OVER THE
MISSISSIPPI RIVER VALLEY IS PUMPING MOISTURE LADEN AIR FROM THE
GULF AND ATLANTIC ACROSS NORTH AND CENTRAL GEORGIA. WITH DEWPOINTS
IN THE UPPER 60S TO LOWER 70S AND INSTABILITIES INCREASING THROUGH
THE AFTERNOON HOURS...EXPECT SCATTERED TO NUMEROUS SHOWERS AND
THUNDERSTORMS ACROSS THE AREA TODAY.

WEATHER HAZARDS EXPECTED...

THE PRIMARY THREATS WILL BE FREQUENT LIGHTNING...WIND GUSTS TO 50
MPH OR GREATER...HEAVY RAINFALL...AND HAIL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

...PROLONGED HEAVY RAINFALL EVENT LIKELY WEDNESDAY THROUGH FRIDAY...

A PLUME OF RICH MOISTURE AND UNSEASONABLY STRONG UPPER LEVEL FLOW
WEDNESDAY THROUGH FRIDAY WILL ALLOW FOR STRONG TO SEVERE STORMS
TO DEVELOP ACROSS THE STATE. A FLASH FLOOD WATCH IS IN EFFECT FOR
NORTH AND CENTRAL GEORGIA FOR GENERALLY WEDNESDAY THROUGH FRIDAY
MORNING. PERSONS PLANNING OUTDOOR ACTIVITIES DURING THIS
TIME...INCLUDING FOURTH OF JULY EVENTS...SHOULD MONITOR THE LATEST
FORECASTS.

WEATHER HAZARDS EXPECTED...

VERY HEAVY RAINFALL...FLASH FLOODING...PROLONGED RIVER FLOODING...FREQUENT
DANGEROUS LIGHTNING...WIND GUSTS TO 60 MPH OR GREATER AND HAIL
WILL BE POSSIBLE WITH STORMS WEDNESDAY THROUGH SATURDAY.

.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 2, 5:54 PM EDT, 45 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
554 PM EDT TUE JUL 2 2013

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-031000-
DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-UNION-TOWNS-
CHATTOOGA-GORDON-PICKENS-DAWSON-LUMPKIN-WHITE-FLOYD-BARTOW-
CHEROKEE-FORSYTH-HALL-BANKS-JACKSON-MADISON-POLK-PAULDING-COBB-
NORTH FULTON-GWINNETT-BARROW-CLARKE-OCONEE-OGLETHORPE-WILKES-
HARALSON-CARROLL-DOUGLAS-SOUTH FULTON-DEKALB-ROCKDALE-WALTON-
NEWTON-MORGAN-GREENE-TALIAFERRO-HEARD-COWETA-FAYETTE-CLAYTON-
SPALDING-HENRY-BUTTS-JASPER-PUTNAM-HANCOCK-WARREN-TROUP-
MERIWETHER-PIKE-UPSON-LAMAR-MONROE-JONES-BALDWIN-WASHINGTON-
GLASCOCK-JEFFERSON-HARRIS-TALBOT-TAYLOR-CRAWFORD-BIBB-TWIGGS-
WILKINSON-JOHNSON-EMANUEL-MUSCOGEE-CHATTAHOOCHEE-MARION-SCHLEY-
MACON-PEACH-HOUSTON-BLECKLEY-LAURENS-TREUTLEN-STEWART-WEBSTER-
SUMTER-DOOLY-CRISP-PULASKI-WILCOX-DODGE-TELFAIR-WHEELER-
MONTGOMERY-TOOMBS-
554 PM EDT TUE JUL 2 2013

...POTENTIAL EXISTS FOR SIGNIFICANT FLASH FLOODING AND RIVER
FLOODING WEDNESDAY THROUGH FRIDAY...

OVERVIEW...

AN UNUSUAL WEATHER PATTERN FOR JULY IS SETTING UP ACROSS THE
SOUTHEASTERN UNITED STATES. AN UPPER LEVEL LOW IS SLOWLY DRIFTING
WEST AS THE BERMUDA HIGH STARTS TO BUILD IN FROM THE EAST. THIS
WILL LEAD TO THE DEVELOPMENT OF ORGANIZED THUNDERSTORMS OVER THE
AREA. AT THE SAME TIME...A DEEP PLUME OF CARIBBEAN MOISTURE IS
FORECAST TO MOVE INTO THE PEACH STATE TONIGHT THROUGH FRIDAY.
THUNDERSTORMS ARE FORECAST TO CONTINUE DEVELOPING IN EASTERN GEORGIA
AND GRADUALLY SPREAD OVER THE STATE THROUGH WEDNESDAY...AND SHOULD
GRADUALLY END ON FRIDAY. RAINFALL FROM THESE THUNDERSTORMS ARE
EXPECTED TO BE ANYWHERE FROM 2 TO 4 INCHES...WITH LOCALLY HIGHER
AMOUNTS POSSIBLE.

THIS DEEP PLUME OF MOISTURE IS SIMILAR TO OTHER SIGNIFICANT
FLOODING EVENTS THAT THE SOUTHEASTERN UNITED STATES HAS
EXPERIENCED IN THE PAST FEW YEARS. THUNDERSTORMS THAT DO DEVELOP
WILL HAVE THE CAPABILITY TO PRODUCE A LOT OF RAIN IN A SHORT
PERIOD OF TIME. THUNDERSTORMS THAT TRAIN OVER THE SAME AREA WILL
LIKELY LEAD TO FLOODING OF THOSE AREAS.

UNCERTAINTIES...

WHILE ALL THE INGREDIENTS SUPPORT THE POSSIBILITY OF A SIGNIFICANT
FLOODING EVENT...THE DETAILS OF WHAT AND WHERE THE FLOODING WILL
OCCUR IS YET TO BE KNOWN. CURRENT COMPUTER MODELS PREDICT
ANYWHERE FROM 2 TO 6 INCHES OVER THE AREA AND SOME OF THE MODELS
PREDICT UP TO 8 INCHES WITH SOME OF THE SIGNIFICANT TRAINING OF
THUNDERSTORMS. REGARDLESS...WITH ALL THE RECENT RAIN...FLOODING
COULD OCCUR IN THE AREA.

PREPAREDNESS TIPS...

WITH INDEPENDENCE DAY THIS WEEK...IT IS LIKELY THAT MANY PEOPLE
FROM OUT OF TOWN WILL BE DRIVING THROUGH OR STAYING IN THE AREA.
IT IS IMPORTANT THAT THESE PEOPLE UNDERSTAND TO THE BEST OF THEIR ABILITY
WHERE THEY ARE...AND WHAT COUNTY THEY ARE STAYING IN.

REMEMBER THAT FLOODING AT NIGHT IS ESPECIALLY DANGEROUS. NEVER
DRIVE INTO FLOODED ROADWAYS! BE SMART...TURN AROUND...DONT DROWN!
STAY TUNED TO FUTURE STATEMENTS AND POSSIBLE WATCHES AND WARNINGS
ABOUT THIS POSSIBLE SIGNIFICANT FLOODING EVENT.

Special weather statement, Jul 2, 6:01 PM EDT, 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
601 PM EDT TUE JUL 2 2013

GAZ061-062-074-075-085-097-022230-
601 PM EDT TUE JUL 2 2013

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN WASHINGTON...
WARREN...LAURENS...JOHNSON...GLASCOCK AND HANCOCK COUNTIES UNTIL 630
PM EDT...

AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM MAYFIELD TO TUCKERS CROSSROAD...MOVING
NORTHEAST AT 15 MPH. RADAR ESTIMATES OF RAINFALL ARE GENERALLY
BETWEEN 1 AND 2 INCHES OVER THE PAST HOUR...ESPECIALLY IN NORTHEAST
HANCOCK COUNTY ALONG BEAVERDAM CREEK.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
WASHINGTON...WARREN...LAURENS...JOHNSON...GLASCOCK AND HANCOCK
COUNTIES...INCLUDING AREAS AROUND LOVETT...DEEPSTEP...LINTON...
CULVERTON...SPARTA...TUCKERS CROSSROAD...SPANN...WRIGHTSVILLE...
TENNILLE...SANDERSVILLE...FIVE POINTS...DONOVAN...DOWNS...HAMBURG
STATE PARK AND AGRICOLA. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS
ALONG THE BANKS OF CREEKS AND STREAMS ARE SUBJECT TO MINOR FLOODING.

&&

LAT...LON 3313 8265 3312 8266 3311 8265 3270 8270
      3262 8275 3255 8286 3257 8297 3289 8294
      3319 8310 3343 8286 3353 8272 3361 8265
      3339 8261
TIME...MOT...LOC 2200Z 215DEG 15KT 3339 8280 3319 8296
          3296 8287 3269 8286

Special weather statement, Jul 2, 6:39 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
639 PM EDT TUE JUL 2 2013

GAZ074-075-085-097-022300-
639 PM EDT TUE JUL 2 2013

...SIGNIFICANT WEATHER ADVISORY FOR HEAVY RAIN IN WASHINGTON...
LAURENS...JOHNSON AND GLASCOCK COUNTIES UNTIL 700 PM EDT...

AT 631 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS FROM HAMBURG STATE PARK TO EAST DUBLIN...MOVING
NORTHEAST AT 20 MPH. BETWEEN 2 AND 3 INCHES OF RAIN HAVE FALLEN
SINCE 5 PM WITH THESE STORMS...WITH THE HEAVIEST AMOUNTS IN NORTHERN
LAURENS COUNTY NEAR TUCKERS CROSSROADS AND EXTREME WESTERN JOHNSON
COUNTY. THE LINE OF STORMS IS MOVING EAST SO RAINFALL ACCUMULATIONS
ABOVE 3 INCHES ARE UNLIKELY.

RUNOFF FROM THESE STORMS WILL CAUSE MINOR FLOODING OF SMALL CREEKS
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES ACROSS
WASHINGTON...LAURENS...JOHNSON AND GLASCOCK COUNTIES...INCLUDING
AREAS AROUND EAST DUBLIN...WARTHEN...TENNILLE...SANDERSVILLE...
BREWTON...HAMBURG STATE PARK...LOVETT...SPANN...AGRICOLA...
MITCHELL...HARRISON...DONOVAN...WRIGHTSVILLE...DOWNS AND PRINGLE.
ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS
AND STREAMS ARE SUBJECT TO MINOR FLOODING.

&&

LAT...LON 3312 8266 3303 8259 3267 8262 3243 8292
      3280 8282 3320 8286 3324 8278 3324 8275
      3326 8274 3327 8269 3330 8264 3331 8260
      3312 8258
TIME...MOT...LOC 2237Z 215DEG 18KT 3321 8279 3288 8275
          3260 8283

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 11:28 PM EDT	Flash Flood Warning	FFC	Telfair	3 hr
Jul 1, 11:48 PM EDT	Special Weather Statement	FFC	Catoosa, Chattooga, Walker	57 min
Jul 2, 6:01 PM EDT	Special Weather Statement	FFC	Hancock, Warren, Washington	29 min
Jul 2, 6:22 PM EDT	Flash Flood Warning	FFC	Hancock	6 hr
Jul 2, 7:01 PM EDT	Special Weather Statement	FFC	Washington	29 min

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.