Alert archive / Georgia / Flash Flood Watches in 2012
Flash Flood Watch 7, NWS Tallahassee, FL
NWS Tallahassee, FL issued this flash flood watch at Aug 27, 2012, 2:42 PM CDT for 16 counties in Florida; 26 counties in Georgia; 5 counties in Alabama. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Aug 27, 2012, 2:42 PM CDT (19:42 UTC)
- Expired
- Aug 28, 2012, 4:43 AM CDT
- In force
- 14 hr
- Issued by
- NWS Tallahassee, FL
- Flood severity
- None
All 47 counties
Coffee County, AL, Dale County, AL, Geneva County, AL, Henry County, AL, Houston County, AL, Bay County, FL, Calhoun County, FL, Dixie County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Holmes County, FL, Jackson County, FL, Jefferson County, FL, Lafayette County, FL, Leon County, FL, Madison County, FL, Taylor County, FL, Wakulla County, FL, Walton County, FL, Washington County, FL, Baker County, GA, Ben Hill County, GA, Berrien County, GA, Brooks County, GA, Calhoun County, GA, Clay County, GA, Colquitt County, GA, Cook County, GA, Decatur County, GA, Dougherty County, GA, Early County, GA, Grady County, GA, Irwin County, GA, Lanier County, GA, Lee County, GA, Lowndes County, GA, Miller County, GA, Mitchell County, GA, Quitman County, GA, Randolph County, GA, Seminole County, GA, Terrell County, GA, Thomas County, GA, Tift County, GA, Turner County, GA, Worth County, GA
The radar
The Tallahassee radar (KTLH), 66 km from the middle of the area, began a volume at 19:42 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
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.7 hours before the alert went out and 66 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
- 588 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 691 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 145 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
407 WGUS62 KTAE 271942 FFATAE URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE TALLAHASSEE FL 342 PM EDT MON AUG 27 2012 ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... .OUTER RAIN BANDS FROM TROPICAL STORM ISAAC HAVE BEGUN TO AFFECT THE REGION THIS AFTERNOON. THIS RAIN WILL CONTINUE OVERNIGHT...POSING A THREAT OF FLOODING. PORTIONS OF THE WATCH MAY NEED TO BE EXTENDED INTO WEDNESDAY. ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134- GAZ120>131-142>148-155>161-281200- /O.NEW.KTAE.FF.A.0007.120827T1942Z-120828T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON- HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF- INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY- INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON- COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON- COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-QUITMAN-CLAY- RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN- EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE- DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER- INCLUDING THE CITIES OF...ENTERPRISE...OZARK...FORT RUCKER... DALEVILLE...HEADLAND...ABBEVILLE...GENEVA...HARTFORD...SAMSON... SLOCOMB...MALVERN...TAYLOR...ASHFORD...DOTHAN...KINSEY... COWARTS...WEBB...COTTONWOOD...REHOBETH...DE FUNIAK SPRINGS... HUDSON...BONIFAY...CRYSTAL LAKE...CHIPLEY...FIVE POINTS... MARIANNA...GRACEVILLE...MALONE...SNEADS...YOUNGSTOWN... BLOUNTSTOWN...WHITE CITY...WEWAHITCHKA...QUINCY...CHATTAHOOCHEE... TALLAHASSEE...SPRING HILL...MONTICELLO...MADISON...GREENVILLE... SWEETWATER...CRAWFORDVILLE...PERRY...MIDWAY...MAYO...CROSS CITY... FREEPORT...SANTA ROSA BEACH...PANAMA CITY...PARKER... PORT SAINT JOE...APALACHICOLA...CARRABELLE...SOPCHOPPY... SAINT MARKS...KEATON BEACH...STEINHATCHEE...SUWANNEE... GEORGETOWN...FORT GAINES...CUTHBERT...SHELLMAN...ARLINGTON... MORGAN...EDISON...LEARY...DAWSON...ALBANY...LEESBURG... SMITHVILLE...SYLVESTER...ASHBURN...TIFTON...FITZGERALD...OCILLA... DOUGLASVILLE...BLAKELY...COLQUITT...NEWTON...CAMILLA...PELHAM... MOULTRIE...ADEL...SPARKS...NASHVILLE...DONALSONVILLE... BAINBRIDGE...CAIRO...THOMASVILLE...QUITMAN...VALDOSTA...LAKELAND 342 PM EDT MON AUG 27 2012 /242 PM CDT MON AUG 27 2012/ ...FLASH FLOOD WATCH IN EFFECT THROUGH TUESDAY MORNING... THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF SOUTHEAST ALABAMA...FLORIDA AND GEORGIA...INCLUDING THE FOLLOWING AREAS...IN SOUTHEAST ALABAMA...COFFEE...DALE...GENEVA...HENRY AND HOUSTON. IN FLORIDA...CALHOUN...CENTRAL WALTON...COASTAL BAY...COASTAL DIXIE...COASTAL FRANKLIN...COASTAL GULF...COASTAL JEFFERSON... COASTAL TAYLOR...COASTAL WAKULLA...GADSDEN...HOLMES...INLAND BAY...INLAND DIXIE...INLAND FRANKLIN...INLAND GULF...INLAND JEFFERSON...INLAND TAYLOR...INLAND WAKULLA...INLAND WALTON... JACKSON...LAFAYETTE...LEON...LIBERTY...MADISON...SOUTH WALTON AND WASHINGTON. IN GEORGIA...BAKER...BEN HILL...BERRIEN... BROOKS...CALHOUN...CLAY...COLQUITT...COOK...DECATUR... DOUGHERTY...EARLY...GRADY...IRWIN...LANIER...LEE...LOWNDES... MILLER...MITCHELL...QUITMAN...RANDOLPH...SEMINOLE...TERRELL... THOMAS...TIFT...TURNER AND WORTH. * THROUGH TUESDAY MORNING * OUTER RAIN BANDS FROM TROPICAL STORM ISAAC WILL AFFECT THE REGION OVERNIGHT...POSING A THREAT OF FLASH FLOODING. WHILE MOST RAINFALL TOTALS THROUGH TUESDAY MORNING WILL RANGE FROM 1 TO 3 INCHES...ISOLATED TOTALS OF UP TO 6 INCHES ARE POSSIBLE IF THE HEAVY RAIN BANDS SET UP OVER THE SAME LOCATION FOR MULTIPLE HOURS. THIS COULD CAUSE FLASH FLOODING IN LOW LYING AREAS...ESPECIALLY IN LARGER CITIES...CREEKS...POOR DRAINAGE AREAS...AND IN AREAS THAT HAVE RECEIVED HEAVY RAIN OVER THE PAST SEVERAL DAYS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. AVOID DRIVING THROUGH WATER OF UNKNOWN DEPTH. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. && $$ FOURNIER
1 follow-up statement
958 WGUS62 KTAE 280943 FFATAE FLOOD WATCH NATIONAL WEATHER SERVICE TALLAHASSEE FL 543 AM EDT TUE AUG 28 2012 ...FLASH FLOOD WATCH FOR TODAY IS CANCELLED... .OUTER BANDS FROM TROPICAL STORM ISAAC ARE MOVING ACROSS THE REGION THIS MORNING. HOWEVER...WIDESPREAD HEAVY RAINFALL IS NOT ANTICIPATED TODAY. THEREFORE...THE RISK OF WIDESPREAD FLASH FLOODING HAS DIMINISHED FOR TODAY. ALZ065>069-FLZ007>019-026>029-034-108-112-114-115-118-127-128-134- GAZ120>131-142>148-155>161-281045- /O.CAN.KTAE.FF.A.0007.000000T0000Z-120828T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ COFFEE-DALE-HENRY-GENEVA-HOUSTON-INLAND WALTON-CENTRAL WALTON- HOLMES-WASHINGTON-JACKSON-INLAND BAY-CALHOUN-INLAND GULF- INLAND FRANKLIN-GADSDEN-LEON-INLAND JEFFERSON-MADISON-LIBERTY- INLAND WAKULLA-INLAND TAYLOR-LAFAYETTE-INLAND DIXIE-SOUTH WALTON- COASTAL BAY-COASTAL GULF-COASTAL FRANKLIN-COASTAL JEFFERSON- COASTAL WAKULLA-COASTAL TAYLOR-COASTAL DIXIE-QUITMAN-CLAY- RANDOLPH-TERRELL-DOUGHERTY-LEE-WORTH-TURNER-TIFT-BEN HILL-IRWIN- EARLY-MILLER-BAKER-MITCHELL-COLQUITT-COOK-BERRIEN-SEMINOLE- DECATUR-GRADY-THOMAS-BROOKS-LOWNDES-LANIER- INCLUDING THE CITIES OF...ENTERPRISE...OZARK...FORT RUCKER... DALEVILLE...HEADLAND...ABBEVILLE...GENEVA...HARTFORD...SAMSON... SLOCOMB...MALVERN...TAYLOR...ASHFORD...DOTHAN...KINSEY... COWARTS...WEBB...COTTONWOOD...REHOBETH...DE FUNIAK SPRINGS... HUDSON...BONIFAY...CRYSTAL LAKE...CHIPLEY...FIVE POINTS... MARIANNA...GRACEVILLE...MALONE...SNEADS...YOUNGSTOWN... BLOUNTSTOWN...WHITE CITY...WEWAHITCHKA...QUINCY...CHATTAHOOCHEE... TALLAHASSEE...SPRING HILL...MONTICELLO...MADISON...GREENVILLE... SWEETWATER...CRAWFORDVILLE...PERRY...MIDWAY...MAYO...CROSS CITY... FREEPORT...SANTA ROSA BEACH...PANAMA CITY...PARKER... PORT SAINT JOE...APALACHICOLA...CARRABELLE...SOPCHOPPY... SAINT MARKS...KEATON BEACH...STEINHATCHEE...SUWANNEE... GEORGETOWN...FORT GAINES...CUTHBERT...SHELLMAN...ARLINGTON... MORGAN...EDISON...LEARY...DAWSON...ALBANY...LEESBURG... SMITHVILLE...SYLVESTER...ASHBURN...TIFTON...FITZGERALD...OCILLA... DOUGLASVILLE...BLAKELY...COLQUITT...NEWTON...CAMILLA...PELHAM... MOULTRIE...ADEL...SPARKS...NASHVILLE...DONALSONVILLE... BAINBRIDGE...CAIRO...THOMASVILLE...QUITMAN...VALDOSTA...LAKELAND 543 AM EDT TUE AUG 28 2012 /443 AM CDT TUE AUG 28 2012/ ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF SOUTHEAST ALABAMA...FLORIDA AND GEORGIA HAS BEEN CANCELLED. WHILE WIDESPREAD HEAVY RAIN IS NO LONGER ANTICIPATED TODAY...ISOLATED FLASH FLOODING WILL BE POSSIBLE IF RAIN BANDS FROM TROPICAL STORM ISAAC BECOME STATIONARY OVER A PARTICULAR AREA. ADDITIONAL RAIN IS ANTICIPATED ON WEDNESDAY AND CONDITIONS WILL BE MONITORED FOR THE NEED FOR ADDITIONAL FLASH FLOOD WATCHES AT THAT TIME. $$ CAMP
The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 10:42 AM CDT | Coastal Flood Advisory | TAE | Bay, Dixie, Franklin, Gulf, Jefferson, Taylor and 2 more | 3 days |
| Aug 27, 1:57 PM CDT | River Flood Watch | TAE | Wakulla | 18 hr |
| Aug 27, 2:17 PM CDT | River Flood Watch | TAE | Jefferson, Madison, Taylor | 17 hr |
| Aug 27, 2:33 PM CDT | River Flood Watch | TAE | Walton | 6 days |
| Aug 27, 2:55 PM CDT | River Flood Watch | TAE | Leon | 17 hr |
| Aug 27, 2:55 PM CDT | River Flood Watch | TAE | Gadsden, Leon | 17 hr |
| Aug 27, 2:55 PM CDT | River Flood Watch | TAE | Gadsden, Leon | 17 hr |
| Aug 27, 2:55 PM CDT | River Flood Watch | TAE | Grady, Thomas | 17 hr |
Nearby
Flash Flood Watches in Georgia, 2012Flash Flood Watches in Florida, 2012Flash Flood Watches in Alabama, 2012Every flash flood watch in 2012
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.