Alert archive / Alabama / Flash Flood Warnings in 2021
Flash Flood Warning 37, NWS Mobile, AL
NWS Mobile, AL issued this flash flood warning at Jul 2, 2021, 3:58 PM CDT for Clarke County, Monroe County, Alabama. 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
- Jul 2, 2021, 3:58 PM CDT (20:58 UTC)
- Expired
- Jul 2, 2021, 7:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clarke County, AL, Monroe County, AL
The radar
The Mobile radar (KMOB), 103 km from the middle of the area, began a volume at 20:58 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
Birmingham, AL (KBMX), launched 12:00Z, 9.0 hours before the alert went out and 211 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
- 258 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
298
WGUS54 KMOB 022058
FFWMOB
ALC025-099-030000-
/O.NEW.KMOB.FF.W.0037.210702T2058Z-210703T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
358 PM CDT Fri Jul 2 2021
The National Weather Service in Mobile has issued a
* Flash Flood Warning for...
Southwestern Monroe County in south central Alabama...
East Central Clarke County in southwestern Alabama...
* Until 700 PM CDT.
* At 358 PM CDT, Doppler radar indicated thunderstorms producing
very heavy rain repeatedly moving across the warned area. 2 to 4
inches of rain has already fallen. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Frisco City, Uriah, Excel, Manistee, Homewood, Jeddo, Palmers
Crossroads, Barlow Bend, Megargel, Perdue Hill, Goodway, Eliska,
Gainestown, Mount Pleasant and Halls Crossroads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3146 8774 3152 8762 3153 8750 3145 8730
3135 8735 3127 8748 3130 8763 3131 8774
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 12:01 PM CDT | Special Weather Statement | MOB | Mobile | 44 min |
| Jul 2, 3:20 PM CDT | Areal Flood Advisory | MOB | Baldwin, Clarke, Monroe, Wilcox | 3 hr |
| Jul 2, 3:37 PM CDT | Special Marine Warning | MOB | 83 min | |
| Jul 2, 5:29 PM CDT | Special Marine Warning | MOB | 91 min |
Nearby
Flash Flood Warnings in Alabama, 2021Every flash flood warning in 2021
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.