Alert archive / Georgia / Special Weather Statements in 2011
Special Weather Statement, NWS Atlanta, GA
NWS Atlanta, GA issued this special weather statement at Jul 11, 2011, 3:46 PM EDT for Houston County, Georgia. It was in force for 29 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 11, 2011, 3:46 PM EDT (19:46 UTC)
- Expired
- Jul 11, 2011, 4:15 PM EDT
- In force
- 29 min
- Issued by
- NWS Atlanta, GA
County Houston County, GA
The radar
The Robins AFB radar (KJGX), 30 km from the middle of the area, began a volume at 19:47 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, 7.8 hours before the alert went out and 131 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
- 843 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -27 m²/s²
- 0-3 km storm-relative helicity
- -27 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 11, 1:50 PM EDT, 1 hour 56 minutes earlier.
Area forecast discussion, Jul 11, 1:50 PM EDT, 1 hour 56 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE PEACHTREE CITY GA 150 PM EDT MON JUL 11 2011 .UPDATE... NO CHANGES TO THE FORECAST. GIVEN THE LOCATION OF THE UPPER RIDGE...LITTLE BETTER CHANCES FOR CONVECTION OVER CENTRAL GA. THE MORNING SOUNDING SHOWING WARMING UP AT 500-600MB FROM 24 HOURS AGO. THIS WILL TEND TO INHIBIT STRONG CONVECTION. ANY STRONG CONVECTION COULD PRODUCE GUSTY WINDS AS THE MORNING SOUNDING IS ALSO DRIER ABOVE 650MB. FORECAST HIGH TEMPERATURES RUNNING 3-7 DEGREES ABOVE NORMAL. BDL && .PREV DISCUSSION... /ISSUED 748 AM EDT MON JUL 11 2011/ SHORT TERM /TODAY THROUGH WEDNESDAY/... MODELS SIMILAR WITH THE UPPER RIDGE HOLDING OVER THE COUNTY WARNING AREA THROUGH TUESDAY...BEFORE BEGINNING TO WEAKEN WEDNESDAY AS AN UPPER TROF DEEPENS OVER NEW ENGLAND. MEANWHILE... WEAK SURFACE BOUNDARY MEANDERING ACROSS NORTH CENTRAL GEORGIA PROGGED TO DRIFT INTO SOUTH CENTRAL GEORGIA TODAY...THEN WASH OUT ACROSS THAT AREA TUESDAY. MODELS SHOW ANOTHER BOUNDARY DRIFTING SOUTHWARD FROM THE OH-TN VALLEY REGION TUESDAY...MOVING INTO NORTH GEORGIA BY WEDNESDAY. IN SPITE OF A WEAK RIDGE OVER THE AREA TODAY...ISOLATED TO SCATTERED CONVECTION POSSIBLE...ESPECIALLY ACROSS CENTRAL GEORGIA WHERE THE WEAK FRONT WILL ACT AS A FOCUS... AND WILL CONTINUE TO SHOW HIGHEST POPS THERE. ON WEDNESDAY WITH THE FRONT SAGGING INTO NORTH GEORGIA...WILL SHIFT THE FOCUS THERE WITH BEST POPS ACROSS OUR NORTHERN HALF. HOT TEMPS WILL ALSO BE OF SOME CONCERN THIS PERIOD. MAV/MET MOS CONSISTENT WITH HIGHS APPROACHING THE CENTURY MARK ACROSS PORTIONS OF CENTRAL GEORGIA TUESDAY. LOOK FOR HEAT INDICES TO BE IN THE 105 TO 110 RANGE. HEAT INDICES MAY APPROACH 105 ACROSS SOME AREAS OF CENTRAL GEORGIA THIS AFTERNOON...BUT WITH THE NIGHT TIME CRITERIA OF MINS OF 75 OR BETTER FOR 2 CONSECUTIVE NIGHTS WILL HOLD OFF ON HEAT ADVISORY FOR TODAY. LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/... EXTENDED PROGS SIMILAR WITH THE SURFACE FRONT PUSHING INTO NORTH CENTRAL GEORGIA THURSDAY...THEN MOVING SOUTH OF THE COUNTY WARNING AREA BY FRIDAY AS SURFACE HIGH PRESSURE WEDGES DOWN THE APPALACHIANS. MODELS MAINTAIN REMNANTS OF WEAK BOUNDARY SOMEWHERE ACROSS SOUTH GEORGIA INTO SUNDAY. MEANWHILE...GFS TRIES TO DEVELOP A SURFACE LOW OFF THE CAROLINA-GEORGIA COAST SATURDAY/SUNDAY THEN MOVE IT INTO SOUTHEAST GEORGIA ON MONDAY. ECMWF DOES NOT SHOW THIS FEATURE. NONETHELESS... HIGH CHANCE POPS SEEM IN ORDER THURSDAY WITH THE FRONT OVER THE COUNTY WARNING AREA. POPS BACK TO SLIGHT CHANCE TO CHANCE RANGE REST OF THE PERIOD WITH THE FRONT SOUTH OF OUR AREA. COOLER TEMPS WILL MARK THE PERIOD...ESPECIALLY FRIDAY AND INTO THE WEEKEND WITH POSSIBLY A WEDGE SETTING UP OVER THE AREA. 49 AVIATION... 18Z UPDATE... ISOLATED TO SCATTERED CONVECTION EXPECTED TO CONTINUE ACROSS THE FORECAST AREA THROUGH AROUND 03Z. GENERALLY VFR CONDITIONS EXPECTED OUTSIDE OF CONVECTION...WITH SCATTERED MVFR VISIBILITIES DEVELOPING BETWEEN 06Z AND 14Z. LOCAL IFR VISIBILITIES POSSIBLE 10Z THROUGH 13Z...BUT AM NOT CARRYING ANY PREVAILING PERIODS AT ANY OF THE TAF SITES. WINDS WILL BE LIGHT AND SOMEWHAT VARIABLE THROUGH THE MAJORITY OF THE FORECAST PERIOD BUT WILL FAVOR A NORTHWEST TENDENCY TO START...BECOMING MORE WEST TO SOUTHWEST WITH TIME. WINDS SPEEDS WILL REMAIN GENERALLY 7KTS OR LESS. //ATL CONFIDENCE...18Z UPDATE... MEDIUM TO HIGH ALL ELEMENTS. 20 && .PRELIMINARY POINT TEMPS/POPS... ATHENS 97 75 98 76 / 20 20 20 20 ATLANTA 94 78 98 79 / 20 20 20 20 BLAIRSVILLE 90 71 90 71 / 20 20 30 20 CARTERSVILLE 96 71 98 73 / 20 20 20 20 COLUMBUS 96 77 98 78 / 30 20 30 20 GAINESVILLE 94 76 97 77 / 20 20 20 20 MACON 95 75 99 76 / 30 20 30 20 ROME 97 73 99 74 / 20 20 20 20 PEACHTREE CITY 95 72 97 74 / 20 20 30 20 VIDALIA 92 75 97 78 / 30 20 30 20 && .FFC WATCHES/WARNINGS/ADVISORIES... NONE. &&
Hazardous weather outlook, Jul 11, 6:05 AM EDT, 9 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PEACHTREE CITY GA 605 AM EDT MON JUL 11 2011 GAZ001>009-011>016-019>025-027-030>039-041>062-066>076-078>086- 089>098-102>113-121015- 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- 605 AM EDT MON JUL 11 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH AND CENTRAL GEORGIA. .DAY ONE...TODAY AND TONIGHT... ISOLATED THUNDERSTORMS ARE EXPECTED ACROSS PORTIONS OF NORTH GEORGIA. SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS PORTIONS OF CENTRAL GEORGIA. .SYNOPSIS... A STRONG UPPER LEVEL RIDGE WILL REMAIN IN PLACE OVER THE AREA. A WEAK SURFACE BOUNDARY ACROSS THE STATE WILL SLOWLY DRIFT SOUTH TODAY...EVENTUALLY DISSIPATING. .PRIMARY HAZARDS... THE PRIMARY HAZARDS ASSOCIATED WITH ANY THUNDERSTORM THAT DEVELOPS WILL BE CLOUD-TO-GROUND LIGHTNING AND GUSTY WINDS. THE BEST LOCATION FOR THUNDERSTORMS IS SOUTH OF A LINE FROM LAGRANGE TO WARRENTON. .DISCUSSION... MODERATE INSTABILITY WILL DEVELOP AGAIN THIS AFTERNOON WITH CAPES AROUND 2000. WITH THE WARM AND MOIST AIRMASS IN PLACE...SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN THIS AFTERNOON. WHILE SOME STRONG THUNDERSTORMS ARE EXPECTED...MOST STORMS SHOULD REMAIN BELOW SEVERE LIMITS. ADDITIONALLY...BECAUSE OF THE HEAT AND HUMIDITY...HEAT INDICES WILL CLIMB TO ABOVE 100 DEGREES ACROSS MOST OF NORTH AND CENTRAL GEORGIA TODAY. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY... THERE IS A CHANCE OF THUNDERSTORMS EACH DAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED THROUGH TONIGHT.
In the hours before
Special weather statement, Jul 11, 3:46 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
346 PM EDT MON JUL 11 2011
GAZ095-107-112015-
346 PM EDT MON JUL 11 2011
...SIGNIFICANT WEATHER ADVISORY FOR 45 MPH WINDS IN PULASKI AND
HOUSTON COUNTIES UNTIL 415 PM EDT...
AT 342 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM OVER KATHLEEN...MOVING SOUTHWEST AT 20 MPH.
THESE STORMS HAVE THE POTENTIAL TO PRODUCE FREQUENT CLOUD TO GROUND
LIGHTNING AND WIND GUSTS TO 45 MPH AS THEY MOVE ACROSS PULASKI AND
HOUSTON COUNTIES THROUGH 415 PM EDT. SOME LOCATIONS IN THE PATH OF
THESE STORMS INCLUDE KATHLEEN...BONAIRE...HOUSTON LAKE...SAND
BED...CLINCHFIELD...HAYNEVILLE...KLONDIKE...GROVE PARK AND GROVANIA.
BRIEF HEAVY DOWNPOURS WILL CAUSE PONDING OF WATER ON ROADWAYS.
&&
LAT...LON 3239 8378 3262 8362 3258 8353 3257 8355
3255 8354 3252 8354 3248 8349 3245 8350
3242 8348 3229 8354
TIME...MOT...LOC 1946Z 038DEG 16KT 3248 8358The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 3:56 PM EDT | Heat Advisory | FFC | Baldwin, Banks, Barrow, Bartow, Bibb, Bleckley and 75 more | 36 hr |
| Jul 11, 5:58 PM EDT | Special Weather Statement | FFC | Harris | 32 min |
| Jul 11, 6:17 PM EDT | Special Weather Statement | FFC | Harris, Muscogee | 28 min |
| Jul 11, 7:14 PM EDT | Special Weather Statement | FFC | Chattahoochee | 31 min |
| Jul 11, 7:23 PM EDT | Special Weather Statement | FFC | Stewart | 22 min |
| Jul 11, 7:32 PM EDT | Special Weather Statement | FFC | Stewart, Webster | 28 min |
| Jul 11, 7:57 PM EDT | Special Weather Statement | FFC | Sumter | 33 min |
Nearby
Special Weather Statements in Georgia, 2011Every special weather statement in 2011
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.