Alert archive / Georgia / Flash Flood Watches in 2018
Flash Flood Watch 2, NWS Atlanta, GA
NWS Atlanta, GA issued this flash flood watch at May 23, 2018, 2:31 PM EDT for 40 counties in Georgia. It took effect at May 23, 2018, 3:00 PM EDT. It was in force for 20 hr.
The area
The counties it named.
The facts
- Issued
- May 23, 2018, 2:31 PM EDT (18:31 UTC)
- In effect from
- May 23, 2018, 3:00 PM EDT
- Expired
- May 24, 2018, 11:00 AM EDT
- In force
- 20 hr
- Issued by
- NWS Atlanta, GA
- Flood severity
- None
All 40 counties
Baldwin County, GA, Bibb County, GA, Bleckley County, GA, Chattahoochee County, GA, Crawford County, GA, Crisp County, GA, Dodge County, GA, Dooly County, GA, Emanuel County, GA, Glascock County, GA, Hancock County, GA, Harris County, GA, Houston County, GA, Jefferson County, GA, Johnson County, GA, Jones County, GA, Laurens County, GA, Macon County, GA, Marion County, GA, Monroe County, GA, Montgomery County, GA, Muscogee County, GA, Peach County, GA, Pulaski County, GA, Schley County, GA, Stewart County, GA, Sumter County, GA, Talbot County, GA, Taylor County, GA, Telfair County, GA, Toombs County, GA, Treutlen County, GA, Twiggs County, GA, Upson County, GA, Warren County, GA, Washington County, GA, Webster County, GA, Wheeler County, GA, Wilcox County, GA, Wilkinson County, GA
The radar
The Robins AFB radar (KJGX), 25 km from the middle of the area, began a volume at 18:32 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, 6.5 hours before the alert went out and 128 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
- 223 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 475 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- -18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
676 WGUS62 KFFC 231831 FFAFFC URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Peachtree City GA 231 PM EDT Wed May 23 2018 GAZ061-062-069-071>076-078>086-089>098-102>113-241500- /O.NEW.KFFC.FF.A.0002.180523T1900Z-180524T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hancock-Warren-Upson-Monroe-Jones-Baldwin-Washington-Glascock- Jefferson-Harris-Talbot-Taylor-Crawford-Bibb-Twiggs-Wilkinson- Johnson-Emanuel-Muscogee-Chattahoochee-Marion-Schley-Macon-Peach- Houston-Bleckley-Laurens-Treutlen-Stewart-Webster-Sumter-Dooly- Crisp-Pulaski-Wilcox-Dodge-Telfair-Wheeler-Montgomery-Toombs- Including the cities of Milledgeville, Macon, Swainsboro, Columbus, Warner Robins, Dublin, Lumpkin, Americus, Cordele, and Vidalia 231 PM EDT Wed May 23 2018 ...FLASH FLOOD WATCH IN EFFECT THROUGH THURSDAY MORNING... The National Weather Service in Peachtree City has issued a * Flash Flood Watch for portions of central Georgia...east central Georgia...southeast Georgia and west central Georgia... including the following areas...in central Georgia... Baldwin... Bibb...Bleckley...Crawford...Crisp...Dodge... Dooly...Houston... Jones...Laurens...Monroe...Montgomery... Peach...Pulaski... Telfair...Twiggs...Wheeler...Wilcox and Wilkinson. In east central Georgia...Emanuel...Glascock... Hancock...Jefferson... Johnson...Treutlen...Warren and Washington. In southeast Georgia...Toombs. In west central Georgia...Chattahoochee... Harris...Macon...Marion... Muscogee...Schley...Stewart... Sumter...Talbot...Taylor... Upson and Webster. * Through Thursday morning * The combination of a tropical airmass and a slow moving area of low pressure over Northern Georgia will set up the potential for very heavy localized rainfall late today into the overnight hours. This area of low pressure is forecast to drift south into Central Georgia overnight and has the potential focus storms over a small area for several hours. Some high resolution computer models are indicating the potential for this scenario which could lead to flash flooding over localized areas. There is no guarantee this will occur however given the potential and the history of it occurring Tuesday night into Wednesday morning over Harris...Muscogee and Talbot Counties, a Flash Flood Watch is being issued. * Potential exists for localized areas to receive an additional 4 to 6 inches of rainfall in a short period of time...especially during the overnight and into the early morning hours Thursday. Any areas receiving these amounts of rainfall in a short period of time could expect flash flooding of creeks an streams as well as the potential for flooded roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
2 follow-up statements
780 WGUS62 KFFC 240853 FFAFFC Flood Watch National Weather Service Peachtree City GA 453 AM EDT Thu May 24 2018 GAZ061-062-071>076-082>086-096>098-107>113-241000- /O.CAN.KFFC.FF.A.0002.000000T0000Z-180524T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hancock-Warren-Monroe-Jones-Baldwin-Washington-Glascock-Jefferson- Bibb-Twiggs-Wilkinson-Johnson-Emanuel-Bleckley-Laurens-Treutlen- Pulaski-Wilcox-Dodge-Telfair-Wheeler-Montgomery-Toombs- Including the cities of Milledgeville, Macon, Swainsboro, Dublin, and Vidalia 453 AM EDT Thu May 24 2018 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central Georgia...east central Georgia and southeast Georgia has been cancelled. Although a few heavy rain showers will be possible this morning, the more widespread rainfall remains to confined to counties west of this area. $$ GAZ069-078>081-089>095-102>106-241500- /O.CON.KFFC.FF.A.0002.000000T0000Z-180524T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Upson-Harris-Talbot-Taylor-Crawford-Muscogee-Chattahoochee-Marion- Schley-Macon-Peach-Houston-Stewart-Webster-Sumter-Dooly-Crisp- Including the cities of Columbus, Warner Robins, Lumpkin, Americus, and Cordele 453 AM EDT Thu May 24 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING... The Flash Flood Watch continues for * Portions of central Georgia and west central Georgia... including the following areas...in central Georgia... Crawford...Crisp...Dooly...Houston and Peach. In west central Georgia...Chattahoochee...Harris...Macon...Marion...Muscogee... Schley...Stewart...Sumter...Talbot...Taylor...Upson and Webster. * Until 11 AM EDT this morning * The combination of a tropical airmass and a slow moving area of low pressure will continue the potential for very heavy localized rainfall through the morning hours. This area of low pressure is expected to linger across Central Georgia and has the potential to continue to focus storms over a small area for several hours. This may lead to flash flooding over localized areas. * Potential exists for localized areas to receive an additional 1 to 2 inches of rainfall through the morning hours Thursday. Any areas receiving these amounts of rainfall in a short period of time could expect flash flooding of creeks and streams as well as the potential for flooded roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$
363 WGUS62 KFFC 241441 FFAFFC Flood Watch National Weather Service Peachtree City GA 1041 AM EDT Thu May 24 2018 GAZ069-078>081-089>095-102>106-241545- /O.EXP.KFFC.FF.A.0002.000000T0000Z-180524T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Upson-Harris-Talbot-Taylor-Crawford-Muscogee-Chattahoochee-Marion- Schley-Macon-Peach-Houston-Stewart-Webster-Sumter-Dooly-Crisp- Including the cities of Columbus, Warner Robins, Lumpkin, Americus, and Cordele 1041 AM EDT Thu May 24 2018 ...FLASH FLOOD WATCH WILL EXPIRE AT 11 AM EDT THIS MORNING... The Flash Flood Watch for portions of central Georgia and west central Georgia will expire at 11 AM EDT this morning. However, conditions will remain favorable for isolated areas of very heavy rainfall and flash flooding this afternoon through the rest of the week. Another Flash Flood Watch will likely be issued later today. $$
The office that day
Everything else NWS Atlanta, GA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 12:54 AM EDT | Special Weather Statement | FFC | Harris, Muscogee | 36 min |
| May 23, 1:38 AM EDT | Special Weather Statement | FFC | Muscogee | 37 min |
| May 23, 2:22 AM EDT | Flash Flood Warning | FFC | Harris, Muscogee | 6 hr |
| May 23, 3:10 AM EDT | Special Weather Statement | FFC | Talbot, Upson | 35 min |
| May 23, 3:48 AM EDT | Special Weather Statement | FFC | Talbot, Upson | 27 min |
| May 23, 4:22 AM EDT | Special Weather Statement | FFC | Upson | 23 min |
| May 23, 4:23 AM EDT | Special Weather Statement | FFC | Talbot | 37 min |
| May 23, 5:17 AM EDT | Flash Flood Warning | FFC | Talbot | 9 hr |
| May 23, 5:37 AM EDT | River Flood Warning | FFC | Gwinnett | 10 hr |
| May 23, 6:37 AM EDT | Flash Flood Warning | FFC | Harris, Muscogee, Talbot | 8 hr |
| May 23, 6:57 AM EDT | Flash Flood Warning | FFC | Talbot, Upson | 6 hr |
| May 23, 7:27 AM EDT | River Flood Warning | FFC | Chattahoochee, Muscogee | 7 hr |
| May 23, 8:28 AM EDT | Special Weather Statement | FFC | Chattahoochee, Marion, Muscogee, Schley, Taylor | 62 min |
| May 23, 8:50 AM EDT | Special Weather Statement | FFC | Clarke, Jackson, Madison | 55 min |
| May 23, 9:09 AM EDT | Flash Flood Warning | FFC | Chattahoochee, Marion, Muscogee, Talbot, Taylor | 6 hr |
| May 23, 10:23 AM EDT | Special Weather Statement | FFC | Chattahoochee, Marion, Schley | 67 min |
| May 23, 10:33 AM EDT | River Flood Warning | FFC | Crawford, Talbot, Taylor, Upson | 42 hr |
| May 23, 10:39 AM EDT | River Flood Warning | FFC | Gwinnett | 2 hr |
| May 23, 11:27 AM EDT | Special Weather Statement | FFC | Marion, Schley, Stewart, Webster | 48 min |
| May 23, 12:09 PM EDT | Special Weather Statement | FFC | Sumter | 51 min |
| May 23, 1:23 PM EDT | Special Weather Statement | FFC | Dodge, Laurens, Washington | 52 min |
| May 23, 2:47 PM EDT | Special Weather Statement | FFC | Wilcox | 43 min |
| May 23, 3:17 PM EDT | Special Weather Statement | FFC | Oglethorpe | 43 min |
| May 23, 3:27 PM EDT | Special Weather Statement | FFC | Jones | 48 min |
| May 23, 3:44 PM EDT | Special Weather Statement | FFC | Dodge | 31 min |
| May 23, 5:19 PM EDT | Special Weather Statement | FFC | Talbot | 26 min |
| May 23, 6:44 PM EDT | Special Weather Statement | FFC | Taliaferro | 31 min |
Nearby
Flash Flood Watches in Georgia, 2018Every flash flood watch in 2018
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.