Alert archive / Georgia / Special Weather Statements in 2015

Special Weather Statement, NWS Atlanta, GA

September 22, 20154 counties in Georgia

NWS Atlanta, GA issued this special weather statement at Sep 22, 2015, 4:55 AM EDT for 4 counties in Georgia. It was in force for 50 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: Sep 22, 2015, 4:55 AM EDT (08:55 UTC)
Expired: Sep 22, 2015, 5:45 AM EDT
In force: 50 min
Issued by: NWS Atlanta, GA

Counties Macon County, GA, Schley County, GA, Sumter County, GA, Webster County, GA

The radar

The Robins AFB radar (KJGX), 93 km from the middle of the area, began a volume at 08:55 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, 8.9 hours before the alert went out and 129 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: 7 J/kg
Mixed-layer CIN: -216 J/kg
Mixed-layer LCL: 1464 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -72 m²/s²
0-3 km storm-relative helicity: 31 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.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</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 Sep 22, 4:19 AM EDT, 36 minutes earlier.

Area forecast discussion, Sep 22, 4:19 AM EDT, 36 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Sep 22, 1:47 AM EDT, 3 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
147 AM EDT TUE SEP 22 2015

GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086-
089>098-102>113-231100-
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-
147 AM EDT TUE SEP 22 2015

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

.DAY ONE...TODAY AND TONIGHT...

ISOLATED THUNDERSTORMS ARE EXPECTED OVER PARTS OF CENTRAL GEORGIA
TODAY.

WEATHER HAZARDS EXPECTED...
BRIEF GUSTY WINDS... FREQUENT LIGHTNING AND LOCALLY HEAVY RAIN.

DISCUSSION...
AN UPPER LOW PRESSURE SYSTEM WILL INTERACT WITH INCREASING
MOISTURE AND INSTABILITY TO PRODUCE SCATTERED SHOWERS WITH A FEW
EMBEDDED THUNDERSTORMS AT TIMES. THE GREATER THUNDERSTORM CHANCES
WILL BE ALONG AND SOUTH OF A COLUMBUS TO MACON LOUISVILLE LINE
WHERE A STALLED FRONTAL BOUNDARY WILL HELP PROVIDE A FOCUS. MAINLY
SHOWERS ARE EXPECTED ELSEWHERE. OTHERWISE... NO SEVERE STORMS ARE
EXPECTED AT THIS TIME.

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

ISOLATED THUNDERSTORMS WILL BE POSSIBLE EACH DAY AS AN UPPER LOW
PRESSURE SYSTEM MEANDERS ACROSS THE DEEP SOUTH THROUGH AT LEAST
THE WEEKEND. THE PRIMARY HAZARDS FROM THUNDERSTORMS WILL BE BRIEF
GUSTY WINDS... LOCALLY HEAVY RAIN AND OCCASIONAL CLOUD TO GROUND
LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.

In the hours before

Special weather statement, Sep 21, 11:52 PM EDT, 5 hours 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1152 PM EDT MON SEP 21 2015

GAZ104-220415-
SUMTER GA-
1152 PM EDT MON SEP 21 2015

...SIGNIFICANT WEATHER ADVISORY FOR SUMTER COUNTY UNTIL 1215 AM
EDT...

AT 1152 PM EDT...A STRONG THUNDERSTORM WAS OVER AMERICUS...MOVING
NORTHEAST AT 15 MPH.

  HAZARD...FREQUENT CLOUD TO GROUND LIGHTNING AND HEAVY RAIN.

  IMPACT...PEOPLE OUTDOORS SHOULD SEEK SHELTER IMMEDIATELY.
           ELECTRICAL APPLIANCES SHOULD NOT BE USED UNLESS IN AN
           EMERGENCY. LOCALIZED FLOODING IN LOW LYING AND POOR
           DRAINAGE AREAS IS ALSO LIKELY. MOTORISTS SHOULD SLOW DOWN
           AND BE PREPARED FOR POSSIBLE LOSS OF CONTROL DUE TO
           HYDROPLANING. WHEN WATER COVERS THE ROAD...REMEMBER TO
           TURN AROUND DON'T DROWN.

SOME LOCATIONS IN THE PATH OF THIS STORM INCLUDE
AMERICUS...ANDERSONVILLE...SUMTER...LAMAR...NEW ERA...METHVINS...
MADDOX...HUNTINGTON AND PENNINGTON.

LAT...LON 3193 8427 3209 8437 3216 8426 3216 8418
      3222 8418 3223 8417 3223 8414 3219 8413
      3219 8409 3218 8405 3208 8398 3205 8398
      3205 8397 3203 8396
TIME...MOT...LOC 0352Z 239DEG 13KT 3205 8425

Special weather statement, Sep 22, 3:05 AM EDT, 1 hour 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
305 AM EDT TUE SEP 22 2015

GAZ091-092-103-104-220745-
WEBSTER GA-MARION GA-SUMTER GA-SCHLEY GA-
305 AM EDT TUE SEP 22 2015

...SIGNIFICANT WEATHER ADVISORY FOR WEBSTER...SOUTHERN MARION...
SUMTER AND SCHLEY COUNTIES UNTIL 345 AM EDT...

AT 303 AM EDT...A CLUSTER OF HEAVY SHOWERS WITH EMBEDDED
THUNDERSTORMS WAS EXTENDING FROM NEAR PLAINS TO NEAR PRESTON...AND
MOVING NORTHEAST AT 15 MPH.

  HAZARD...UP TO 40 MPH WIND...OCCASIONAL CLOUD TO GROUND LIGHTNING
           AND LOCALLY HEAVY RAIN CAN BE EXPECTED.

  IMPACT...MINOR DAMAGE TO TREE LIMBS AND BLOWING AROUND OF
           LIGHT...UNSECURED OBJECTS IS POSSIBLE. LOCALIZED FLOODING IN
           LOW LYING AND POOR DRAINAGE AREAS IS ALSO LIKELY.
           MOTORISTS SHOULD SLOW DOWN AND BE PREPARED FOR POSSIBLE
           LOSS OF CONTROL DUE TO HYDROPLANING. WHEN WATER COVERS
           THE ROAD...REMEMBER TO TURN AROUND DON'T DROWN.

SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE
AMERICUS...ELLAVILLE...PRESTON...PLAINS...ANDERSONVILLE...WESTON...
SMITHVILLE...SUMTER...PUTNAM...LAMAR...SEMINOLE...DOYLE...NEW ERA...
DRANEVILLE...FRIENDSHIP...METHVINS...PENNINGTON...CROXTON
CROSSROADS...HUNTINGTON AND LA CROSSE.

LAT...LON 3197 8444 3192 8446 3192 8466 3207 8464
      3216 8465 3218 8463 3222 8464 3238 8434
      3233 8425 3230 8425 3229 8422 3223 8422
      3223 8414 3219 8413 3218 8405 3209 8398
      3204 8398 3191 8425 3192 8434 3187 8434
TIME...MOT...LOC 0703Z 230DEG 11KT 3195 8438 3213 8454

Special weather statement, Sep 22, 3:51 AM EDT, 1 hour 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
351 AM EDT TUE SEP 22 2015

GAZ091>093-103-104-220845-
WEBSTER GA-MARION GA-SUMTER GA-MACON GA-SCHLEY GA-
351 AM EDT TUE SEP 22 2015

...SIGNIFICANT WEATHER ADVISORY FOR WEBSTER...SOUTHERN MARION...
SUMTER...MACON AND SCHLEY COUNTIES UNTIL 445 AM EDT...

AT 349 AM EDT...A CLUSTER OF SHOWERS AND THUNDERSTORMS WAS EXTENDING FROM
NEAR ELLAVILLE TO NEAR PRESTON...AND MOVING NORTHEAST AT 20 MPH.

  HAZARD...UP TO 40 MPH WIND...OCCASIONAL CLOUD TO GROUND LIGHTNING
           AND LOCALLY HEAVY RAIN IS POSSIBLE.

  IMPACT...MAIN CONCERN IS LOCALIZED FLOODING IN LOW LYING AND POOR
           DRAINAGE AREAS. WATER MAY COME OUT OF CREEKS AND ACROSS
           ROADWAYS. MOTORISTS SHOULD SLOW DOWN AND BE PREPARED FOR
           POSSIBLE LOSS OF CONTROL DUE TO HYDROPLANING. WHEN WATER
           COVERS THE ROAD...REMEMBER TO TURN AROUND DON'T DROWN.

SOME LOCATIONS IN THE PATH OF THESE STORMS INCLUDE
AMERICUS...BUENA VISTA...ELLAVILLE...OGLETHORPE...PRESTON...
MONTEZUMA...RICHLAND...MARSHALLVILLE...PLAINS...IDEAL...LESLIE...
ANDERSONVILLE...WESTON...SUMTER...PUTNAM...LAMAR...SEMINOLE...GARDEN
VALLEY...DOYLE AND FOUNTAINVILLE.

LAT...LON 3197 8444 3192 8446 3192 8466 3229 8465
      3242 8436 3237 8432 3237 8425 3253 8405
      3253 8400 3252 8405 3250 8403 3251 8392
      3248 8392 3247 8385 3231 8385 3218 8403
      3210 8400 3191 8413 3192 8434 3188 8435
TIME...MOT...LOC 0749Z 226DEG 22KT 3226 8438 3207 8450

Special weather statement, Sep 22, 4:55 AM EDT, 0 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 21, 11:52 PM EDT	Special Weather Statement	FFC	Sumter	23 min
Sep 22, 3:05 AM EDT	Special Weather Statement	FFC	Schley, Sumter, Webster	40 min
Sep 22, 3:51 AM EDT	Special Weather Statement	FFC	Macon, Schley, Sumter, Webster	54 min
Sep 22, 5:42 AM EDT	Special Weather Statement	FFC	Jefferson	63 min
Sep 22, 5:53 AM EDT	Special Weather Statement	FFC	Dooly, Sumter	37 min
Sep 22, 6:54 AM EDT	Special Weather Statement	FFC	Glascock, Jefferson, Johnson, Washington	51 min
Sep 22, 7:00 AM EDT	Special Weather Statement	FFC	Dooly, Houston, Macon, Schley, Sumter	60 min
Sep 22, 11:16 AM EDT	Special Weather Statement	FFC	Stewart, Webster	29 min

Nearby

Special Weather Statements in Georgia, 2015 Every 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.