Alert archive / Alabama / Flash Flood Warnings in 2021

Flash Flood Warning 58, NWS Birmingham, AL

October 5, 2021Chambers County, Lee County, Alabama

NWS Birmingham, AL issued this flash flood warning at Oct 5, 2021, 5:23 AM CDT for Chambers County, Lee County, Alabama. It was in force for 5 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: Oct 5, 2021, 5:23 AM CDT (10:23 UTC)
Expired: Oct 5, 2021, 9:58 AM CDT
In force: 5 hr
Issued by: NWS Birmingham, AL
Area: Storm-based polygon
Flood severity: None

Counties Chambers County, AL, Lee County, AL

The radar

The Maxwell AFB radar (KMXX), 63 km from the middle of the area, began a volume at 10:23 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
Oct 5, 7:00 AM CDT	FLASH FLOOD	1 Sw Fairfax, AL	FLOODING AROUND FAIRFAX BYPASS AND HIGHWAY 29. OSANIPPA CREEK WAS FLOODED AND SEVERAL FEET OF WATER INTO THE BACK OF BUSINESSES.
Oct 5, 7:00 AM CDT	FLASH FLOOD	Valley, AL	MOORES CREEK ROSE WELL OUT OF ITS BANKS AND FLOODED FOB JAMES DR NEAR HIGHWAY 29.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 10.4 hours before the alert went out and 95 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: 126 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 846 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -27 m²/s²
0-3 km storm-relative helicity: -22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

416 
WGUS54 KBMX 051023
FFWBMX
ALC017-081-051615-
/O.NEW.KBMX.FF.W.0058.211005T1023Z-211005T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Birmingham AL
523 AM CDT Tue Oct 5 2021

The National Weather Service in Birmingham has issued a

* Flash Flood Warning for...
  Eastern Chambers County in east central Alabama...
  Lee County in east central Alabama...

* Until 1115 AM CDT.

* At 523 AM CDT, emergency management reported thunderstorms 
  producing heavy rain across the warned area. Between 3 and 5 
  inches of rain have fallen. The expected rainfall rate is 1 to 2 
  inches in 1 hour. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Emergency management reported.

  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...
  Auburn, Opelika, Valley, Lanett, Notasulga, Smiths, Smiths 
  Station, La Fayette, Lakeview, Cusseta, Beans Mill, Beulah, 
  Chambers County Lake, Oak Bowery, Huguley, Fairfax, River View, 
  Beauregard, Griffen Mill and Bleecker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3310 8523 3286 8518 3285 8515 3281 8517
      3277 8512 3277 8514 3275 8514 3274 8511
      3268 8511 3266 8509 3264 8510 3264 8508
      3262 8509 3258 8507 3251 8500 3251 8506
      3247 8506 3247 8509 3258 8564

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

05

1 follow-up statement

998 
WGUS74 KBMX 051458
FFSBMX

Flash Flood Statement
National Weather Service Birmingham AL
958 AM CDT Tue Oct 5 2021

ALC017-081-051508-
/O.CAN.KBMX.FF.W.0058.000000T0000Z-211005T1615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chambers AL-Lee AL-
958 AM CDT Tue Oct 5 2021

...FLASH FLOOD WARNING IS CANCELLED FOR EASTERN CHAMBERS AND LEE 
COUNTIES...

Flood waters have receded. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 100 AM CDT Thursday for 
a portion of central Alabama.

LAT...LON 3310 8523 3286 8518 3285 8515 3281 8517
      3277 8512 3277 8514 3275 8514 3274 8511
      3268 8511 3266 8509 3264 8510 3264 8508
      3262 8509 3258 8507 3251 8500 3251 8506
      3247 8506 3247 8509 3258 8564

$$

05

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 4, 11:46 PM CDT	Areal Flood Advisory	BMX	Chambers, Lee	3 hr
Oct 5, 12:38 AM CDT	Flash Flood Warning	BMX	Chambers, Lee	3 hr
Oct 5, 3:27 AM CDT	Areal Flood Advisory	BMX	Barbour, Bullock, Lee, Macon, Pike, Russell	3 hr
Oct 5, 5:27 AM CDT	Areal Flood Advisory	BMX	Jefferson, Shelby	3 hr
Oct 5, 6:25 AM CDT	Flash Flood Warning	BMX	Shelby	2 hr
Oct 5, 7:53 AM CDT	Areal Flood Advisory	BMX	Bibb, Hale, Tuscaloosa	3 hr
Oct 5, 3:49 PM CDT	Areal Flood Advisory	BMX	Marion	116 min
Oct 5, 4:09 PM CDT	Areal Flood Advisory	BMX	Tuscaloosa	3 hr
Oct 5, 5:25 PM CDT	Special Weather Statement	BMX	Lamar	35 min
Oct 5, 6:43 PM CDT	Areal Flood Advisory	BMX	Jefferson, Shelby	6 hr

Nearby

Flash Flood Warnings in Alabama, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.