Alert archive / Alabama / Flash Flood Warnings in 2018
Flash Flood Warning 25, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Sep 5, 2018, 8:06 AM CDT for 4 counties in Alabama. It was in force for 6 hr. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 5, 2018, 8:06 AM CDT (13:06 UTC)
- Expired
- Sep 5, 2018, 2:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Baldwin County, AL, Clarke County, AL, Monroe County, AL, Washington County, AL
The radar
The Mobile radar (KMOB), 96 km from the middle of the area, began a volume at 13:10 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 5, 9:56 AM CDT | FLASH FLOOD | 5 Ne Saint Stephrns, AL | OLD LOCKE ONE RD CLOSED DUE TO FLOODING. |
| Sep 5, 11:19 AM CDT | FLASH FLOOD | 5 Nnw Jackson, AL | WIGGINS ROAD CLOSED DUE TO A WASHOUT FROM FLOODING. EM EMAILED IMAGE OF FLOODING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Birmingham, AL (KBMX), launched 12:00Z, 1.1 hours before the alert went out and 214 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
- 303 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 693 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.1
The text
As transmitted.
574 WGUS54 KMOB 051306 FFWMOB ALC003-025-099-129-051900- /O.NEW.KMOB.FF.W.0025.180905T1306Z-180905T1900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Mobile AL 806 AM CDT WED SEP 5 2018 The National Weather Service in Mobile has issued a * Flash Flood Warning for... Southwestern Monroe County in south central Alabama... North central Baldwin County in southwestern Alabama... Northeastern Washington County in southwestern Alabama... Central Clarke County in southwestern Alabama... * Until 200 PM CDT. * At 805 AM CDT, Doppler radar indicated showers and thunderstorms producing heavy rain across the warned area. Flash flooding is expected. * Some locations that will experience flooding include... Jackson, Saint Stephens, Wagarville, Leroy, Uriah and Whatley. LAT...LON 3127 8749 3123 8798 3169 8810 3169 8764 $$
1 follow-up statement
944 WGUS74 KMOB 051650 FFSMOB Flash Flood Statement National Weather Service Mobile AL 1150 AM CDT WED SEP 5 2018 ALC003-025-099-129-051900- /O.CON.KMOB.FF.W.0025.000000T0000Z-180905T1900Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Monroe AL-Baldwin AL-Washington AL-Clarke AL- 1150 AM CDT WED SEP 5 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR SOUTHWESTERN MONROE...NORTH CENTRAL BALDWIN...NORTHEASTERN WASHINGTON AND CENTRAL CLARKE COUNTIES... At 1149 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding has been reported in Clarke County. Some locations that will experience flooding include... Jackson, Saint Stephens, Wagarville, Leroy, Uriah and Whatley. LAT...LON 3127 8749 3123 8798 3169 8810 3169 8764 $$
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 8:24 PM CDT | Flash Flood Warning | MOB | Baldwin | 12 hr |
| Sep 4, 8:24 PM CDT | River Flood Warning | MOB | Baldwin | 40 hr |
| Sep 4, 8:31 PM CDT | River Flood Warning | MOB | Baldwin | 4 days |
| Sep 4, 8:32 PM CDT | River Flood Warning | MOB | Baldwin | 70 hr |
| Sep 4, 9:00 PM CDT | Flash Flood Warning | MOB | Mobile | 6 hr |
| Sep 4, 10:45 PM CDT | Flash Flood Warning | MOB | Baldwin, Escambia | 12 hr |
| Sep 5, 12:53 AM CDT | Tornado Warning | MOB | Baldwin | 25 min |
| Sep 5, 2:06 AM CDT | Flash Flood Warning | MOB | Clarke, Monroe, Washington | 6 hr |
| Sep 5, 3:19 AM CDT | Special Marine Warning | MOB | 26 min | |
| Sep 5, 3:32 AM CDT | Special Marine Warning | MOB | 28 min | |
| Sep 5, 4:30 AM CDT | Flash Flood Warning | MOB | Choctaw, Clarke | 6 hr |
| Sep 5, 4:57 AM CDT | Small Craft Advisory | MOB | 5 hr | |
| Sep 5, 5:15 AM CDT | Coastal Flood Advisory | MOB | Baldwin, Mobile | 9 hr |
| Sep 5, 5:15 AM CDT | High Surf Advisory | MOB | Baldwin, Mobile | 9 hr |
| Sep 5, 7:54 AM CDT | Flash Flood Warning | MOB | Baldwin, Clarke, Conecuh, Escambia, Mobile, Monroe and 1 more | 6 hr |
| Sep 5, 9:06 AM CDT | Flash Flood Warning | MOB | Clarke, Conecuh, Monroe, Wilcox | 6 hr |
| Sep 5, 9:35 AM CDT | Special Marine Warning | MOB | 115 min | |
| Sep 5, 10:25 AM CDT | Flash Flood Warning | MOB | Choctaw, Clarke | 5 hr |
| Sep 5, 12:53 PM CDT | Areal Flood Advisory | MOB | Mobile | 52 min |
| Sep 5, 1:50 PM CDT | Areal Flood Warning | MOB | Baldwin, Escambia | 6 hr |
Nearby
Flash Flood Warnings in Alabama, 2018Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.