Alert archive / Georgia / Special Weather Statements in 2015
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Jul 20, 2015, 5:42 PM EDT for Catoosa County, Whitfield 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 20, 2015, 5:42 PM EDT (21:42 UTC)
- Expired
- Jul 20, 2015, 6:15 PM EDT
- In force
- 33 min
- Issued by
- NWS Atlanta, GA
Counties Catoosa County, GA, Whitfield County, GA
The radar
The Northeast Alabama radar (KHTX), 107 km from the middle of the area, began a volume at 21:45 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, 9.7 hours before the alert went out and 168 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.
- Mixed-layer CAPE
- 1070 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>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 20, 3:38 PM EDT, 2 hours 4 minutes earlier.
Area forecast discussion, Jul 20, 3:38 PM EDT, 2 hours 4 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PEACHTREE CITY GA 338 PM EDT MON JUL 20 2015 .SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/... STILL LOOKING AT 2 DISTINCT AREAS OF CONVECTION THIS AFTERNOON WITH FIRST OVER CENTRAL GEORGIA WHERE INSTABILITY WAS ALREADY IN PLACE EARLY THIS MORNING ALONG WITH PLENTY OF LOW LEVEL MOISTURE. THIS AREA FIRED FIRST AND IS DRIFTING SLOWLY TO THE SOUTH NOW AND SHOULD ACTUALLY SEE SOME IMPROVING CONDITIONS FOR MCN AND CSG FOR THE REMAINDER OF THIS AFTERNOON AND EARLY EVENING. TO THE NORTH HOWEVER...ACTIVITY JUST NOW STARTING TO GET GOING WITH BUILDING CAPE VALUES TO 2500 TO ALMOST 3000 J/KG. UPPER LEVEL SHORTWAVE ALSO HELPING TO INITIATE ACTIVITY FOR NORTH GA AND EXPECT MORE WIDESPREAD COVERAGE THROUGH THIS EVENING. DCAPE ACROSS THE AREA REMAINS QUITE HIGH WITH ALMOST 1500 J/KG ACROSS NORTH CENTRAL GEORGIA WHERE MOST MID LEVEL DRY AIR RESIDES. EXPECT ANY ELEVATED STRONG CORES TO PRODUCE SOME STRONG TO SEVERE WIND GUSTS WITH ACTIVITY THIS AFTERNOON AND EVENING. FOR TUESDAY...MAY SPEND MUCH OF THE AFTERNOON HOURS IN BETWEEN SHORTWAVE SYSTEMS WHICH MAY LIMIT POPS A BIT. BEST CHANCES APPEAR TO BE ALONG THE SOUTHERN TIER OF THE FORECAST AREA ALTHOUGH COULD NOT STRAY TOO FAR FROM CLIMO FOR THE NORTH AS PRECIPITABLE WATER VALUES REMAIN IN THE 1.60 INCH RANGE. GETTING ADDITIONAL HEAT ADVISORY CRITERIA FOR TUESDAY FOR CENTRAL GEORGIA ONCE AGAIN ALTHOUGH IT IS A BIT MORE MARGINAL. WILL LET THE MIDNIGHT SHIFT TAKE A LOOK TO BETTER DETERMINE AREAL EXTENT. DEESE .LONG TERM /WEDNESDAY THROUGH MONDAY/... NO MAJOR CHANGES WHERE MADE TO THE EXTENDED PERIODS AS LONG TERM MODELS CONTINUE TO SHOW A FAIRLY ACTIVE NORTHWEST FLOW SETTING UP BY MID WEEK AND PERSISTING THROUGH THE WEEKEND. AT THE SAME TIME... MODELS ARE SHOWING A SURFACE TROUGH OR WEAK FRONTAL BOUNDARY MEANDERING ACROSS THE AREA. THIS SHOULD HELP PROVIDE A FOCUS FOR SCATTERED... MAINLY AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS EACH DAY. THIS PATTERN MAY HELP LOWER DAYTIME HIGHS AND ASSOCIATED HEAT INDEX VALUES A FEW DEGREES LATER IN THE WEEK. 39 && .AVIATION... 18Z UPDATE... /ISSUED AT 151 PM EDT MON JUL 20 2015/ LOOKS LIKE TWO DISTINCT AREAS TO BE CONCERNED WITH FOR TSRA THIS AFTERNOON. THE FIRST WILL BE FROM CSG TO MCN AND IS ONGOING REQUIRING A TEMPO TO INITIALIZE THE FORECAST. FURTHER NORTH...FOR ATL AND SURROUNDING SITES...DRIER AIR FOR NOW WILL RESULT IN A MUCH LATER START TO TSRA. STILL LOOKS TO BE ENOUGH COVERAGE TO WARRANT TEMPO BUT WILL NOT START IT UNTIL 22Z. //ATL CONFIDENCE...18Z UPDATE... MEDIUM ON TSRA POTENTIAL. HIGH ON REMAINING ELEMENTS. DEESE && .PRELIMINARY POINT TEMPS/POPS... ATHENS 75 97 75 94 / 30 40 40 40 ATLANTA 76 93 75 91 / 30 40 40 40 BLAIRSVILLE 68 88 67 84 / 40 40 30 50 CARTERSVILLE 72 93 72 90 / 40 40 40 40 COLUMBUS 77 96 76 94 / 20 40 40 50 GAINESVILLE 75 93 74 90 / 40 40 40 40 MACON 75 97 75 97 / 30 40 40 50 ROME 73 94 73 91 / 40 40 40 40 PEACHTREE CITY 74 94 73 91 / 30 40 40 40 VIDALIA 76 96 77 96 / 40 40 40 50 && .FFC WATCHES/WARNINGS/ADVISORIES... HEAT ADVISORY UNTIL 7 PM EDT THIS EVENING FOR THE FOLLOWING ZONES: BALDWIN...BIBB...BLECKLEY...BUTTS...CHATTAHOOCHEE... CRAWFORD...CRISP...DODGE...DOOLY...EMANUEL...GLASCOCK...GREENE... HANCOCK...HARRIS...HOUSTON...JASPER...JEFFERSON...JOHNSON... JONES...LAMAR...LAURENS...MACON...MARION...MERIWETHER...MONROE... MONTGOMERY...MORGAN...MUSCOGEE...PEACH...PIKE...PULASKI... PUTNAM...SCHLEY...SPALDING...STEWART...SUMTER...TALBOT... TALIAFERRO...TAYLOR...TELFAIR...TOOMBS...TREUTLEN...TROUP... TWIGGS...UPSON...WARREN...WASHINGTON...WEBSTER...WHEELER... WILCOX...WILKES...WILKINSON. && SHORT TERM...DEESE LONG TERM....39 AVIATION...DEESE
Hazardous weather outlook, Jul 20, 12:12 PM EDT, 5 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1212 PM EDT MON JUL 20 2015 GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 089>098-102>113-211100- 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- 1212 PM EDT MON JUL 20 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH AND CENTRAL GEORGIA. .DAY ONE...THIS AFTERNOON AND TONIGHT... A HEAT ADVISORY IS IN EFFECT FOR CENTRAL AND PORTIONS OF NORTH GEORGIA THIS AFTERNOON. PLEASE REFER TO THE HEAT ADVISORY /ATLNPWFFC/ FOR MORE INFORMATION. A FEW STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EVENING. WEATHER HAZARDS EXPECTED... HEAT INDICES WILL REACH OR EXCEED 105 FOR CENTRAL AND PORTIONS OF NORTH GEORGIA TODAY. ISOLATED TO SCATTERED THUNDERSTORMS THAT DEVELOP TODAY WILL PRODUCE STRONG GUSTY WINDS... FREQUENT LIGHTNING AND BRIEF HEAVY RAINFALL. A FEW OF THE STRONGER STORMS COULD PRODUCE DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... HEAT INDICES OF 105 OR GREATER WILL BE POSSIBLE MAINLY OVER PORTIONS OF CENTRAL GEORGIA TUESDAY AND WEDNESDAY. STRONG THUNDERSTORMS WILL BE POSSIBLE DURING THE AFTERNOON AND EVENING HOURS EACH DAY. STRONG GUSTY WINDS...FREQUENT LIGHTNING AND BRIEF HEAVY RAINFALL WILL BE THE MAIN HAZARDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED THROUGH TONIGHT.
In the hours before
Special weather statement, Jul 20, 4:21 PM EDT, 1 hour 21 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
421 PM EDT MON JUL 20 2015
GAZ020-202045-
BARTOW GA-
421 PM EDT MON JUL 20 2015
...SIGNIFICANT WEATHER ADVISORY FOR BARTOW COUNTY UNTIL 445 PM EDT...
AT 420 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR CASSVILLE...OR 10 MILES NORTHWEST OF
CARTERSVILLE...MOVING EAST AT 10 MPH.
HAZARD...WINDS UP TO 40 MPH...UP TO PENNY SIZED HAIL AND FREQUENT
LIGHTNING.
IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY. EXPECT
MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
LIGHT...UNSECURED OBJECTS. ELECTRICAL APPLIANCES SHOULD
NOT BE USED UNLESS IN AN EMERGENCY.
SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
CARTERSVILLE...ADAIRSVILLE...EMERSON...WHITE...KINGSTON...
CASSVILLE...PINE LOG...RED TOP MOUNTAIN STATE PARK AND GEORGE
WASHINGTON CARVER ST PK.
LAT...LON 3437 8496 3437 8465 3436 8465 3435 8464
3435 8465 3423 8465 3413 8466 3419 8498
TIME...MOT...LOC 2020Z 283DEG 10KT 3430 8489Special weather statement, Jul 20, 4:44 PM EDT, 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
444 PM EDT MON JUL 20 2015
GAZ001-002-202115-
DADE GA-WALKER GA-
444 PM EDT MON JUL 20 2015
...SIGNIFICANT WEATHER ADVISORY FOR DADE AND WALKER COUNTIES UNTIL
515 PM EDT...
AT 443 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR TRENTON...MOVING SOUTHEAST AT 35 MPH.
HAZARD...WINDS UP TO 40 MPH AND FREQUENT LIGHTNING.
IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY. EXPECT
MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
LIGHT...UNSECURED OBJECTS. ELECTRICAL APPLIANCES SHOULD
NOT BE USED UNLESS IN AN EMERGENCY.
SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
CHATTANOOGA...LAFAYETTE...TRENTON...FORT OGLETHORPE...ROSSVILLE...
CHICKAMAUGA...LOOKOUT MOUNTAIN...CHATTANOOGA VALLEY...LA FAYETTE...
RISING FAWN...NAOMI...CHATTANOOGA VALLEY...NOBLE...CLOUDLAND CANYON
STATE PARK...COOPER HEIGHTS...NEW ENGLAND...COLE CITY...
MORGANVILLE...ROCK SPRING AND WILDWOOD.
LAT...LON 3499 8528 3494 8527 3486 8526 3485 8524
3467 8520 3465 8554 3486 8559 3498 8560
3498 8559
TIME...MOT...LOC 2043Z 303DEG 29KT 3488 8557Special weather statement, Jul 20, 4:44 PM EDT, 58 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
444 PM EDT MON JUL 20 2015
GAZ001-002-202130-
DADE GA-WALKER GA-
444 PM EDT MON JUL 20 2015
...SIGNIFICANT WEATHER ADVISORY FOR DADE AND WALKER COUNTIES UNTIL
530 PM EDT...
AT 443 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR BRIDGEPORT...MOVING SOUTHEAST AT 30 MPH.
HAZARD...WINDS UP TO 40 MPH...PEA SIZED HAIL AND FREQUENT
LIGHTNING.
IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY. EXPECT
MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
LIGHT...UNSECURED OBJECTS. ELECTRICAL APPLIANCES SHOULD
NOT BE USED UNLESS IN AN EMERGENCY.
SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
TRENTON...FORT OGLETHORPE...CHICKAMAUGA...CHATTANOOGA VALLEY...
RISING FAWN...CLOUDLAND CANYON STATE PARK...COOPER HEIGHTS...NEW
ENGLAND...MORGANVILLE...COLE CITY...FAIRVIEW AND STEPHENSVILLE.
LAT...LON 3498 8560 3495 8527 3488 8527 3477 8533
3467 8548 3472 8555
TIME...MOT...LOC 2043Z 300DEG 24KT 3490 8565Special weather statement, Jul 20, 4:48 PM EDT, 54 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
448 PM EDT MON JUL 20 2015
GAZ021-202115-
CHEROKEE GA-
448 PM EDT MON JUL 20 2015
...SIGNIFICANT WEATHER ADVISORY FOR CHEROKEE COUNTY UNTIL 515 PM
EDT...
AT 448 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR WALESKA...OR 7 MILES WEST OF CANTON...MOVING
EAST AT 15 MPH.
HAZARD...40 TO 50 MPH WIND...UP TO PENNY SIZED HAIL AND FREQUENT
CLOUD TO GROUND LIGHTNING.
IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY. EXPECT
MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
LIGHT...UNSECURED OBJECTS. ELECTRICAL APPLIANCES SHOULD
NOT BE USED UNLESS IN AN EMERGENCY.
SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
CANTON...WOODSTOCK...HOLLY SPRINGS...BALL GROUND...WALESKA...
BUFFINGTON...LEBANON...UNION HILL...BRIDGEMILL...LAKE ARROWHEAD...
HOBGOOD PARK...HICKORY FLAT...SUTALLEE AND LITTLE RIVER LANDING.
LAT...LON 3418 8435 3416 8436 3413 8436 3412 8439
3411 8440 3411 8442 3410 8442 3414 8466
3431 8465 3433 8432
TIME...MOT...LOC 2048Z 265DEG 13KT 3424 8462Special weather statement, Jul 20, 5:15 PM EDT, 27 minutes before
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</html>Special weather statement, Jul 20, 5:42 PM EDT, 0 minutes before
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</html>The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 1:02 PM EDT | Special Weather Statement | FFC | Macon, Schley | 43 min |
| Jul 20, 1:32 PM EDT | Special Weather Statement | FFC | Wilkinson | 43 min |
| Jul 20, 1:39 PM EDT | Special Weather Statement | FFC | Sumter | 36 min |
| Jul 20, 1:44 PM EDT | Special Weather Statement | FFC | Laurens | 46 min |
| Jul 20, 1:52 PM EDT | Severe Thunderstorm Warning | FFC | Wilkinson | 38 min |
| Jul 20, 2:13 PM EDT | Special Weather Statement | FFC | Dooly, Sumter | 47 min |
| Jul 20, 2:18 PM EDT | Special Weather Statement | FFC | Houston | 27 min |
| Jul 20, 2:25 PM EDT | Special Weather Statement | FFC | Wilkinson | 50 min |
| Jul 20, 2:54 PM EDT | Special Weather Statement | FFC | Crisp | 36 min |
| Jul 20, 3:07 PM EDT | Special Weather Statement | FFC | Laurens, Treutlen | 23 min |
| Jul 20, 3:25 PM EDT | Special Weather Statement | FFC | Laurens | 35 min |
| Jul 20, 3:32 PM EDT | Special Weather Statement | FFC | Bleckley | 43 min |
| Jul 20, 3:36 PM EDT | Special Weather Statement | FFC | Murray | 24 min |
| Jul 20, 3:54 PM EDT | Special Weather Statement | FFC | Wheeler | 51 min |
| Jul 20, 4:00 PM EDT | Special Weather Statement | FFC | Murray | 30 min |
| Jul 20, 4:08 PM EDT | Special Weather Statement | FFC | Bleckley, Dodge | 37 min |
| Jul 20, 4:15 PM EDT | Severe Thunderstorm Warning | FFC | Bleckley, Dodge | 45 min |
| Jul 20, 4:21 PM EDT | Special Weather Statement | FFC | Bartow | 24 min |
| Jul 20, 4:44 PM EDT | Special Weather Statement | FFC | Dade, Walker | 31 min |
| Jul 20, 4:48 PM EDT | Special Weather Statement | FFC | Cherokee | 27 min |
| Jul 20, 5:15 PM EDT | Special Weather Statement | FFC | Bibb | 45 min |
| Jul 20, 6:05 PM EDT | Special Weather Statement | FFC | Murray | 25 min |
| Jul 20, 6:29 PM EDT | Special Weather Statement | FFC | Murray | 31 min |
| Jul 20, 6:31 PM EDT | Special Weather Statement | FFC | Floyd | 29 min |
| Jul 20, 6:34 PM EDT | Special Weather Statement | FFC | Glascock | 41 min |
| Jul 20, 6:56 PM EDT | Special Weather Statement | FFC | Telfair | 34 min |
| Jul 20, 6:58 PM EDT | Special Weather Statement | FFC | Paulding | 32 min |
| Jul 20, 7:52 PM EDT | Special Weather Statement | FFC | Cobb | 23 min |
Nearby
Special Weather Statements in Georgia, 2015Every special weather statement in 2015
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.