Alert archive / Alabama / Flash Flood Warnings in 2020
Flash Flood Warning 22, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Aug 25, 2020, 8:12 AM CDT for Choctaw County, Washington County, Alabama; Wayne County, Mississippi. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 25, 2020, 8:12 AM CDT (13:12 UTC)
- Expired
- Aug 25, 2020, 2:15 PM CDT
- In force
- 6 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Choctaw County, AL, Washington County, AL, Wayne County, MS
The radar
The Mobile radar (KMOB), 127 km from the middle of the area, began a volume at 13:15 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
Jackson, MS (KJAN), launched 12:00Z, 1.2 hours before the alert went out and 160 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
- 22 J/kg
- Mixed-layer CIN
- -188 J/kg
- Mixed-layer LCL
- 739 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
434
WGUS54 KMOB 251312
FFWMOB
ALC023-129-MSC153-251915-
/O.NEW.KMOB.FF.W.0022.200825T1312Z-200825T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
812 AM CDT Tue Aug 25 2020
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southwestern Choctaw County in southwestern Alabama...
Northwestern Washington County in southwestern Alabama...
Wayne County in southeastern Mississippi...
* Until 215 PM CDT Tuesday.
* At 811 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 5 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Waynesboro, Clara, Buckatunna, Silas, Gilbertown, Toxey, Denham,
Gretna, Boice, Winchester, Woodwards, West King, Isney, Contwell,
Chicora, Emory, Hiwannee, Aquilla, Belmont and Mehaffey.
Additional rainfall amounts of 1 to 3 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3201 8846 3186 8814 3182 8818 3180 8817
3147 8849 3149 8891 3182 8894 3184 8871
3189 8848
FLASH FLOOD...RADAR INDICATED
$$1 follow-up statement
478
WGUS74 KMOB 251543
FFSMOB
Flash Flood Statement
National Weather Service Mobile AL
1043 AM CDT Tue Aug 25 2020
ALC023-129-MSC153-251915-
/O.CON.KMOB.FF.W.0022.000000T0000Z-200825T1915Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Choctaw AL-Washington AL-Wayne MS-
1043 AM CDT Tue Aug 25 2020
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 PM CDT THIS
AFTERNOON FOR SOUTHWESTERN CHOCTAW, NORTHWESTERN WASHINGTON AND
WAYNE COUNTIES...
At 1036 AM CDT, Doppler radar indicated scattered showers and
isolated thunderstorms producing locally heavy rainfall across the
warned area. Between 3 and 6 inches of rain with isolated totals
around 7 inches have fallen since early this morning. Additional
heavy rainfall remains possible and excessive runoff will likely
result in flash flooding of roads, creeks, streams, and other low
lying areas.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Waynesboro, Clara, Buckatunna, Silas, Gilbertown, Toxey, Denham,
Gretna, Boice, Winchester, Woodwards, West King, Isney, Contwell,
Chicora, Emory, Hiwannee, Aquilla, Belmont and Mehaffey.
Additional rainfall amounts of 1 to 3 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3201 8846 3186 8814 3182 8818 3180 8817
3147 8849 3149 8891 3182 8894 3184 8871
3189 8848
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 8:23 PM CDT | Special Marine Warning | MOB | 97 min | |
| Aug 24, 9:59 PM CDT | Special Marine Warning | MOB | 46 min | |
| Aug 24, 10:21 PM CDT | Special Marine Warning | MOB | 47 min | |
| Aug 25, 12:20 AM CDT | Special Weather Statement | MOB | Covington | 25 min |
| Aug 25, 12:35 AM CDT | Special Weather Statement | MOB | Covington | 25 min |
| Aug 25, 6:00 AM CDT | Special Weather Statement | MOB | Baldwin | 45 min |
| Aug 25, 6:48 AM CDT | Special Marine Warning | MOB | 57 min | |
| Aug 25, 6:48 AM CDT | Special Weather Statement | MOB | Mobile | 42 min |
| Aug 25, 7:04 AM CDT | Areal Flood Advisory | MOB | Choctaw, Clarke, Wilcox | 3 hr |
| Aug 25, 7:11 AM CDT | Special Marine Warning | MOB | 64 min | |
| Aug 25, 7:59 AM CDT | Special Weather Statement | MOB | Baldwin | 46 min |
| Aug 25, 8:49 AM CDT | Special Weather Statement | MOB | Baldwin | 41 min |
| Aug 25, 12:16 PM CDT | Special Marine Warning | MOB | 59 min | |
| Aug 25, 12:34 PM CDT | Special Marine Warning | MOB | 56 min | |
| Aug 25, 1:14 PM CDT | Special Marine Warning | MOB | 61 min | |
| Aug 25, 1:16 PM CDT | Special Weather Statement | MOB | Mobile | 59 min |
| Aug 25, 1:21 PM CDT | Special Marine Warning | MOB | 39 min | |
| Aug 25, 2:01 PM CDT | Special Marine Warning | MOB | 44 min | |
| Aug 25, 2:07 PM CDT | Special Marine Warning | MOB | 53 min | |
| Aug 25, 2:25 PM CDT | Special Weather Statement | MOB | Mobile | 35 min |
| Aug 25, 2:29 PM CDT | Special Weather Statement | MOB | Baldwin | 46 min |
| Aug 25, 3:07 PM CDT | Special Marine Warning | MOB | 38 min | |
| Aug 25, 3:18 PM CDT | Special Weather Statement | MOB | Baldwin | 27 min |
| Aug 25, 3:23 PM CDT | Special Marine Warning | MOB | 22 min | |
| Aug 25, 3:38 PM CDT | Special Weather Statement | MOB | Mobile | 37 min |
| Aug 25, 7:33 AM CDT | Areal Flood Advisory | MOB | Wayne | 3 hr |
| Aug 25, 8:41 AM CDT | Special Weather Statement | MOB | Wayne | 49 min |
| Aug 25, 11:04 AM CDT | Special Weather Statement | MOB | Greene | 26 min |
| Aug 25, 3:49 PM CDT | Special Weather Statement | MOB | George | 26 min |
| Aug 25, 4:12 PM CDT | Special Weather Statement | MOB | Greene | 33 min |
| Aug 25, 4:14 PM CDT | Special Weather Statement | MOB | Wayne | 31 min |
| Aug 25, 4:20 PM CDT | Special Weather Statement | MOB | Perry | 25 min |
| Aug 25, 4:33 PM CDT | Special Weather Statement | MOB | Greene | 27 min |
Nearby
Flash Flood Warnings in Alabama, 2020Flash Flood Warnings in Mississippi, 2020Every flash flood warning in 2020
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.