Alert archive / Georgia / Flash Flood Watches in 2011
Flash Flood Watch 3, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood watch at Nov 28, 2011, 4:23 PM EST for Towns County, Union County, White County, Georgia. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Nov 28, 2011, 4:23 PM EST (21:23 UTC)
- Expired
- Nov 28, 2011, 9:03 PM EST
- In force
- 5 hr
- Issued by
- NWS Atlanta, GA
Counties Towns County, GA, Union County, GA, White County, GA
The radar
The Greer radar (KGSP), 147 km from the middle of the area, began a volume at 21:25 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, 9.4 hours before the alert went out and 171 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 477 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 382 m²/s²
- 0-3 km storm-relative helicity
- 432 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
842 WGUS62 KFFC 282123 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE PEACHTREE CITY GA 423 PM EST MON NOV 28 2011 GAZ008-009-016-290530- /O.CAN.KFFC.FA.A.0004.000000T0000Z-111129T1000Z/ /O.NEW.KFFC.FF.A.0003.111128T2123Z-111129T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ UNION-TOWNS-WHITE- INCLUDING THE CITY OF...CLEVELAND 423 PM EST MON NOV 28 2011 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT FOR TOWNS... UNION... AND WHITE COUNTIES IN NORTHEAST GEORGIA... ...FLOOD WATCH IS CANCELLED FOR ALL OTHER COUNTIES EXCEPT TOWNS... UNION... AND WHITE COUNTIES... THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY HAS CONTINUED THE * FLOOD WATCH FOR PORTIONS OF NORTHEAST GEORGIA. * THROUGH 5 AM TONIGHT * LIGHT TO MODERATE RAIN CONTINUES OVER PARTS OF NORTHEAST AND EAST CENTRAL GEORGIA THIS EVENING AS A LOW PRESSURE SYSTEM CENTERED OVER EASTERN TENNESSEE AND KENTUCKY IS SLOW TO DRIFT EASTWARD. * RAINFALL AMOUNTS OF ONE HALF TO NEAR ONE INCH REMAIN POSSIBLE OVER FAR NORTHEAST GEORGIA THROUGH THE EVENING AND EARLY TUESDAY MORNING HOURS. THIS OVER AN ALREADY SATURATED GROUND WILL CONTINUE THE FLOOD THREAT INTO EARLY TUESDAY MORNING FOR PARTS OF NORTHEAST GEORGIA. ALTHOUGH THE RAIN IS EXPECTED TO GRADUALLY END FROM THE WEST DURING THE EVENING HOURS... RUNOFF INTO ALREADY SWOLLEN CREEKS AND STREAMS WILL CONTINUE OVERNIGHT. * MINOR FLOODING IS ALREADY OCCURRING IN MANY LOCATIONS ACROSS NORTH GEORGIA...SUCH AS LOOKOUT CREEK NEAR TRENTON... WEST AND SOUTH CHICKAMAUGA CREEKS IN WALKER AND CATOOSA COUNTIES... AND THE CONASAUGA RIVER AND COAHULLA CREEK IN WHITFIELD AND MURRAY COUNTIES. THE HIWASSEE RIVER IN TOWNS COUNTY IS BEING MONITORED CLOSELY FOR POSSIBLE FLOODING AS WELL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLOODING. FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLOOD WARNINGS BE ISSUED. && THE FLOOD WATCH FOR PORTIONS OF NORTHWEST AND NORTH CENTRAL GEORGIA HAS BEEN CANCELLED. THE MODERATE RAIN HAS PUSHED EAST AND GREATLY DIMINISHED THE FLOOD THREAT FOR PARTS OF NORTHWEST AND NORTH CENTRAL GEORGIA FOR TONIGHT. HOWEVER... ARE RESIDENTS SHOULD CONTINUE TO MONITOR RISES ON AREA CREEKS AND RIVERS FOR POSSIBLE WARNINGS OR CHANGES IN CURRENT WARNINGS THAT HAVE BEEN ISSUED. $$ GAZ001>007-011>015-019>021-282230- /O.CAN.KFFC.FA.A.0004.000000T0000Z-111129T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ DADE-WALKER-CATOOSA-WHITFIELD-MURRAY-FANNIN-GILMER-CHATTOOGA- GORDON-PICKENS-DAWSON-LUMPKIN-FLOYD-BARTOW-CHEROKEE- INCLUDING THE CITIES OF...CALHOUN...DAHLONEGA...ROME... CARTERSVILLE 423 PM EST MON NOV 28 2011 ...FLOOD WATCH IS CANCELLED FOR PORTIONS OF NORTHWEST AND NORTH CENTRAL GEORGIA... THE FLOOD WATCH FOR PORTIONS OF NORTHWEST AND NORTH CENTRAL GEORGIA HAS BEEN CANCELLED. THE MODERATE RAIN HAS PUSHED EAST AND GREATLY DIMINISHED THE FLOOD THREAT FOR PARTS OF NORTHWEST AND NORTH CENTRAL GEORGIA FOR TONIGHT. HOWEVER... ARE RESIDENTS SHOULD CONTINUE TO MONITOR RISES ON AREA CREEKS AND RIVERS FOR POSSIBLE WARNINGS OR CHANGES IN CURRENT WARNINGS THAT HAVE BEEN ISSUED. $$
1 follow-up statement
773 WGUS62 KFFC 290203 FFAFFC FLOOD WATCH NATIONAL WEATHER SERVICE PEACHTREE CITY GA 903 PM EST MON NOV 28 2011 GAZ008-009-016-290300- /O.CAN.KFFC.FF.A.0003.000000T0000Z-111129T1000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ UNION-TOWNS-WHITE- INCLUDING THE CITY OF...CLEVELAND 853 PM EST MON NOV 28 2011 ...FLOOD WATCH IS CANCELLED FOR TOWNS... UNION... AND WHITE COUNTIES IN NORTHEAST GEORGIA... THE NATIONAL WEATHER SERVICE IN PEACHTREE CITY GEORGIA HAS CANCELLED THE FLOOD WATCH FOR PORTIONS OF NORTHEAST GEORGIA. THE MODERATE RAIN HAS PUSHED EAST AND GREATLY DIMINISHED THE FLOOD THREAT FOR THE WATCH AREA. ALTHOUGH THE HEAVIER RAINS HAVE ENDED... RESIDENTS SHOULD BE AWARE THAT SLOW RISES ON FLOOD PRONE CREEKS AND RIVERS ARE POSSIBLE OVERNIGHT. $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 28, 1:44 AM EST | River Flood Warning | FFC | Dade | 38 hr |
| Nov 28, 10:20 AM EST | River Flood Warning | FFC | Murray, Whitfield | 46 hr |
| Nov 28, 10:20 AM EST | River Flood Warning | FFC | Whitfield | 3 days |
| Nov 28, 10:20 AM EST | River Flood Warning | FFC | Gordon, Murray, Whitfield | 3 days |
| Nov 28, 10:55 AM EST | River Flood Warning | FFC | Catoosa | 50 hr |
| Nov 28, 12:03 PM EST | River Flood Warning | FFC | Towns | 9 hr |
| Nov 28, 4:29 PM EST | River Flood Warning | FFC | Chattooga | 20 hr |
Nearby
Flash Flood Watches in Georgia, 2011Every flash flood watch 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.