Alert archive / Mississippi / Flash Flood Warnings in 2020
Flash Flood Warning 5, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Apr 23, 2020, 7:30 AM CDT for George County, Mississippi. It was in force for 3 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
- Apr 23, 2020, 7:30 AM CDT (12:30 UTC)
- Expired
- Apr 23, 2020, 10:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
County George County, MS
The radar
The Mobile radar (KMOB), 54 km from the middle of the area, began a volume at 12:31 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 0.5 hours before the alert went out and 117 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
- 2572 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 498 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 424 m²/s²
- 0-3 km storm-relative helicity
- 449 m²/s²
- Significant tornado parameter
- 7.7
- Supercell composite
- 25.5
The text
As transmitted.
973
WGUS54 KMOB 231230
FFWMOB
MSC039-231530-
/O.NEW.KMOB.FF.W.0005.200423T1230Z-200423T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
730 AM CDT Thu Apr 23 2020
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
George County in southeastern Mississippi...
* Until 1030 AM CDT.
* At 729 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Up to three inches of rain have
already fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
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 flooding include...
Lucedale.
Additional rainfall amounts of 2 to 3 inches are possible in the
warned area over the next hour or so.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3090 8887 3091 8885 3091 8884 3092 8883
3100 8867 3100 8842 3084 8842 3074 8888
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 23, 4:26 AM CDT | Severe Thunderstorm Warning | MOB | Wayne | 49 min |
| Apr 23, 4:32 AM CDT | Tornado Warning | MOB | Wayne | 28 min |
| Apr 23, 4:55 AM CDT | Tornado Warning | MOB | Wayne | 50 min |
| Apr 23, 5:19 AM CDT | Tornado Warning | MOB | Wayne | 12 min |
| Apr 23, 5:35 AM CDT | Severe Thunderstorm Warning | MOB | Perry, Stone | 40 min |
| Apr 23, 6:03 AM CDT | Severe Thunderstorm Warning | MOB | George, Greene, Perry, Stone | 42 min |
| Apr 23, 6:11 AM CDT | Tornado Warning | MOB | George | 34 min |
| Apr 23, 6:40 AM CDT | Tornado Warning | MOB | George, Stone | 24 min |
| Apr 23, 7:41 AM CDT | Severe Thunderstorm Warning | MOB | George | 49 min |
| Apr 23, 11:01 AM CDT | River Flood Warning | MOB | George, Greene, Perry | 6 days |
| Apr 23, 3:38 PM CDT | Severe Thunderstorm Warning | MOB | Wayne | 50 min |
Nearby
Flash 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.