Alert archive / Alabama / Flash Flood Warnings in 2022

Flash Flood Warning 39, NWS Mobile, AL

August 24, 2022Choctaw County, Alabama

NWS Mobile, AL issued this flash flood warning at Aug 24, 2022, 10:38 AM CDT for Choctaw County, 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: Aug 24, 2022, 10:38 AM CDT (15:38 UTC)
Expired: Aug 24, 2022, 4:45 PM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 157 km from the middle of the area, began a volume at 15:39 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
Aug 24, 2:30 PM CDT	FLASH FLOOD	1 Wnw Gilbertown, AL	CHOCTAW AND CLARKE COUNTY EMAS RELAYED REPORTS OF FLASH FLOODING AND A PARTIAL ROAD WASHOUT ON MELVIN ROAD.
Aug 24, 2:30 PM CDT	FLASH FLOOD	Land, AL	REPORT OF FLASH FLOODING CAUSING A PARTIAL ROAD WASHOUT ON LAND ROAD.

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, 3.6 hours before the alert went out and 174 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 519 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 687 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -51 m²/s²
0-3 km storm-relative helicity: -37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

792 
WGUS54 KMOB 241538
FFWMOB
ALC023-242145-
/O.NEW.KMOB.FF.W.0039.220824T1538Z-220824T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1038 AM CDT Wed Aug 24 2022

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Choctaw County in southwestern Alabama...

* Until 445 PM CDT Wednesday.

* At 1038 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 3 inches are 
  possible in the warned area. 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...
  Butler, Lisman, Pennington, Gilbertown, Toxey, Red Springs, West 
  Butler, Land, Mount Sterling, Little Walker, Bogueloosa, Needham, 
  Jackson Spur, Hodgewood, Ararat, Pushmataha, Cromwell, Lou, Mollie 
  and Slater.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3231 8842 3231 8793 3228 8793 3230 8794
      3230 8798 3228 8802 3218 8801 3214 8804
      3208 8804 3205 8812 3200 8811 3199 8807
      3196 8808 3195 8812 3194 8811 3194 8810
      3182 8818 3180 8817 3182 8847

FLASH FLOOD...RADAR INDICATED

$$

1 follow-up statement

809 
WGUS74 KMOB 242147
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
447 PM CDT Wed Aug 24 2022

ALC023-242157-
/O.EXP.KMOB.FF.W.0039.000000T0000Z-220824T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Choctaw AL-
447 PM CDT Wed Aug 24 2022

...FLASH FLOOD WARNING HAS EXPIRED FOR CHOCTAW COUNTY...

Flood waters have receded. The heavy rain has ended. Please continue 
to heed any additional information from local officials.

A Flood Watch remains in effect until 700 PM CDT Thursday for 
portions of Alabama, northwest Florida and southeast Mississippi.

LAT...LON 3231 8842 3231 8793 3228 8793 3230 8794
      3230 8798 3228 8802 3218 8801 3214 8804
      3208 8804 3205 8812 3200 8811 3199 8807
      3196 8808 3195 8812 3194 8811 3194 8810
      3182 8818 3180 8817 3182 8847

$$

Black

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 24, 2:50 AM CDT	Flood Watch	MOB	Baldwin, Choctaw, Clarke, Conecuh, Escambia, Mobile and 3 more	40 hr
Aug 24, 11:59 AM CDT	Areal Flood Advisory	MOB	Choctaw, Clarke	3 hr
Aug 24, 12:36 PM CDT	Special Marine Warning	MOB		84 min
Aug 24, 12:40 PM CDT	Special Weather Statement	MOB	Mobile	50 min
Aug 24, 12:46 PM CDT	Flash Flood Warning	MOB	Clarke, Wilcox	6 hr
Aug 24, 1:26 PM CDT	Areal Flood Advisory	MOB	Choctaw, Clarke, Washington	3 hr
Aug 24, 1:35 PM CDT	Special Weather Statement	MOB	Washington	40 min
Aug 24, 1:46 PM CDT	Special Marine Warning	MOB		59 min
Aug 24, 1:47 PM CDT	Flash Flood Warning	MOB	Clarke, Washington	5 hr
Aug 24, 1:52 PM CDT	Special Marine Warning	MOB		68 min
Aug 24, 2:02 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Aug 24, 2:13 PM CDT	Flash Flood Warning	MOB	Choctaw, Clarke, Monroe, Washington, Wilcox	6 hr
Aug 24, 2:24 PM CDT	Areal Flood Advisory	MOB	Baldwin, Mobile	3 hr
Aug 24, 2:32 PM CDT	Special Weather Statement	MOB	Mobile	43 min
Aug 24, 2:56 PM CDT	Special Weather Statement	MOB	Monroe	49 min
Aug 24, 3:07 PM CDT	Flash Flood Warning	MOB	Baldwin, Mobile	3 hr
Aug 24, 3:21 PM CDT	Special Marine Warning	MOB		84 min
Aug 24, 3:26 PM CDT	Areal Flood Advisory	MOB	Clarke, Conecuh, Escambia, Monroe	3 hr
Aug 24, 4:21 PM CDT	Flash Flood Warning	MOB	Conecuh, Monroe, Wilcox	4 hr
Aug 24, 4:39 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Aug 24, 4:46 PM CDT	Special Marine Warning	MOB		119 min
Aug 24, 5:28 PM CDT	Areal Flood Warning	MOB	Choctaw	3 hr
Aug 24, 6:05 PM CDT	Special Marine Warning	MOB		115 min
Aug 24, 6:59 PM CDT	Special Marine Warning	MOB		2 hr

Nearby

Flash Flood Warnings in Alabama, 2022 Every flash flood warning in 2022

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.