Alert archive / Alabama / Flash Flood Warnings in 2021

Flash Flood Warning 100, NWS Mobile, AL

October 5, 2021Conecuh County, Covington County, Escambia County, Alabama

NWS Mobile, AL issued this flash flood warning at Oct 5, 2021, 6:57 PM CDT for Conecuh County, Covington County, Escambia 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: Oct 5, 2021, 6:57 PM CDT (23:57 UTC)
Expired: Oct 6, 2021, 1:00 AM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Conecuh County, AL, Covington County, AL, Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 115 km from the middle of the area, began a volume at 23:57 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, 9:14 PM CDT	FLASH FLOOD	1 S Boykin, AL	PUBLIC REPORT THAT PART OF COUNTY ROAD 69 OR DAMASCUS ROAD WAS IMPASSABLE DUE TO SIGNIFICANT FLASH FLOODING. RELAYED VIA SOCIAL MEDIA BY BROADCAST MEDIA.
Oct 5, 10:40 PM CDT	FLASH FLOOD	3 Nw Roberts, AL	ALABAMA LAW ENFORCEMENT AGENCY RELAYED A REPORT OF A PARTIAL ROAD CLOSURE AT U.S. 29 AND RIDGE ROAD DUE TO WATER OVER THE ROADWAY.

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

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 12.0 hours before the alert went out and 259 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: 1029 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 780 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 63 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

As transmitted.

126 
WGUS54 KMOB 052357
FFWMOB
ALC035-039-053-060600-
/O.NEW.KMOB.FF.W.0100.211005T2357Z-211006T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
657 PM CDT Tue Oct 5 2021

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Southeastern Conecuh County in south central Alabama...
  Northwestern Covington County in south central Alabama...
  Eastern Escambia County in south central Alabama...

* Until 100 AM CDT Wednesday.

* At 657 PM CDT, Doppler radar indicated training bands of heavy 
  rain moving across the warned area. Between 1 and 3 inches of rain 
  have fallen and additional heavy rainfall repeatedly moving over 
  the same locations with already saturated grounds will result in 
  flash flooding.

  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...
  Brooklyn, Paul, Melrose, Damascus, Mount Union, Dixie, 
  Centerville, Loango, Cohassett, Old Town, Travis Bridge, Roberts, 
  Brooks and Shreve.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3152 8684 3152 8670 3152 8661 3125 8663
      3112 8673 3100 8689 3100 8700 3100 8701
      3100 8702

FLASH FLOOD...RADAR INDICATED

$$

21/CLL

2 follow-up statements

067 
WGUS74 KMOB 060212
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
912 PM CDT Tue Oct 5 2021

ALC035-039-053-060600-
/O.CON.KMOB.FF.W.0100.000000T0000Z-211006T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Conecuh AL-Covington AL-Escambia AL-
912 PM CDT Tue Oct 5 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1 AM CDT WEDNESDAY 
FOR SOUTHEASTERN CONECUH, NORTHWESTERN COVINGTON AND EASTERN 
ESCAMBIA COUNTIES...

At 912 PM CDT, Doppler radar continued to indicate bands of very 
heavy rainfall moving across eastern portions of Escambia county and 
into eastern Conecuh counties in south central Alabama. 3 to 4 
inches of rain with locally higher amounts have likely fallen in the 
past few hours. Significant flash flooding is likely ongoing near 
the communities of Damascus and Brooklyn and surrounding nearby 
areas.

HAZARD...Life threatening flash flooding. Thunderstorms producing
         flash flooding.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Brooklyn, Paul, Melrose, Damascus, Mount Union, Dixie, 
  Centerville, Loango, Cohassett, Old Town, Travis Bridge, Roberts, 
  Brooks and Shreve.

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.

&&

LAT...LON 3152 8684 3152 8670 3152 8661 3125 8663
      3112 8673 3100 8689 3100 8700 3100 8701
      3100 8702

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

21/CLL

636 
WGUS74 KMOB 060559
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
1259 AM CDT Wed Oct 6 2021

ALC035-039-053-060609-
/O.EXP.KMOB.FF.W.0100.000000T0000Z-211006T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Conecuh AL-Covington AL-Escambia AL-
1259 AM CDT Wed Oct 6 2021

...FLASH FLOOD WARNING AT 1 AM CDT EARLY THIS MORNING FOR 
SOUTHEASTERN CONECUH, NORTHWESTERN COVINGTON AND EASTERN ESCAMBIA 
COUNTIES HAS BEEN REPLACED WITH A FLOOD WARNING...

LAT...LON 3152 8684 3152 8670 3152 8661 3125 8663
      3112 8673 3100 8689 3100 8700 3100 8701
      3100 8702

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 4, 7:51 PM CDT	Areal Flood Advisory	MOB	Baldwin, Clarke, Monroe, Washington	114 min
Oct 4, 8:46 PM CDT	Areal Flood Advisory	MOB	Baldwin, Conecuh, Escambia, Monroe	3 hr
Oct 4, 8:59 PM CDT	Areal Flood Advisory	MOB	Butler, Conecuh, Covington, Crenshaw	3 hr
Oct 4, 9:41 PM CDT	Flash Flood Warning	MOB	Butler, Conecuh	6 hr
Oct 4, 10:46 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Oct 4, 11:37 PM CDT	Flash Flood Warning	MOB	Baldwin	6 hr
Oct 5, 1:38 AM CDT	Areal Flood Advisory	MOB	Butler, Conecuh, Covington, Crenshaw, Escambia	4 hr
Oct 5, 2:28 AM CDT	Areal Flood Advisory	MOB	Covington	3 hr
Oct 5, 4:17 PM CDT	Areal Flood Advisory	MOB	Conecuh, Escambia	3 hr
Oct 5, 4:51 PM CDT	Flash Flood Warning	MOB	Conecuh, Escambia	6 hr
Oct 5, 5:53 PM CDT	Areal Flood Advisory	MOB	Butler, Conecuh, Covington, Escambia, Monroe	4 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.