Alert archive / Alabama / Flash Flood Warnings in 2020

Flash Flood Warning 33, NWS Mobile, AL

September 16, 20207 counties in Alabama; Escambia County, Florida

NWS Mobile, AL issued this flash flood warning at Sep 16, 2020, 9:49 AM CDT for 7 counties in Alabama; Escambia County, Florida. It was in force for 9 hr. 6 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
Sep 16, 2020, 9:49 AM CDT (14:49 UTC)
Expired
Sep 16, 2020, 6:45 PM CDT
In force
9 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

Counties Baldwin County, AL, Butler County, AL, Conecuh County, AL, Covington County, AL, Crenshaw County, AL, Escambia County, AL, Monroe County, AL, Escambia County, FL

The radar

The Ft Rucker radar (KEOX), 116 km from the middle of the area, began a volume at 14:51 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

TimeReportWhereRemark
Sep 16, 12:55 PM CDTFLASH FLOODBrewton, ALSEVERAL ROADS ARE IMPASSABLE IN DOWNTOWN BREWTON DUE TO HIGH WATER.
Sep 16, 1:13 PM CDTFLASH FLOODAndalusia, ALSEVERAL ROADS ACROSS THE COUNTY FLOODED AND CLOSED.
Sep 16, 3:45 PM CDTFLASH FLOOD2 Ene Andalusia, ALOVERFLOWING POND AND RUSHING WATER NEAR SANFORD ROAD IN ANDALUSIA. VIDEO REPORT FROM SOCIAL MEDIA.
Sep 16, 4:01 PM CDTFLASH FLOOD1 E Atmore, ALMEDICAL PARK DRIVE/HIGHWAY 31 ROAD FLOODED. PICTURE FROM SOCIAL MEDIA.
Sep 16, 4:50 PM CDTFLASH FLOOD1 E Babbie, ALRUSHING, OVERFLOWING WATER (POSSIBLY FROM A CREEK) NEAR BABBIE, AL. VIDEO REPORT FROM SOCIAL MEDIA.
Sep 16, 4:54 PM CDTFLASH FLOOD2 Nw Andalusia, ALPICTURES OF WATER OVER RIVER FALLS STREET IN ANDALUSIA. REPORT FROM SOCIAL MEDIA.

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, 2.8 hours before the alert went out and 187 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-pSkew-T log-p diagram, Birmingham, AL at 12:00Z on 2020-09-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2020-09-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 168 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
872 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
168 m²/s²
0-3 km storm-relative helicity
203 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

865 
WGUS54 KMOB 161449
FFWMOB
ALC003-013-035-039-041-053-099-FLC033-162045-
/O.NEW.KMOB.FF.W.0033.200916T1449Z-200916T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
949 AM CDT Wed Sep 16 2020

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Butler County in south central Alabama...
  Conecuh County in south central Alabama...
  Covington County in south central Alabama...
  Crenshaw County in south central Alabama...
  Escambia County in south central Alabama...
  Southeastern Monroe County in south central Alabama...
  North Central Baldwin County in southwestern Alabama...
  Northwestern Escambia County in northwestern Florida...

* Until 345 PM CDT.

* At 946 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain in A portion of southwestern Alabama and northwestern 
  Florida. Between 3 and 15 inches of rain have fallen. Flash 
  flooding is already occurring.

  HAZARD...Life threatening flash flooding. Hurricane rainbands
           producing extremely heavy rainfall.

  SOURCE...Doppler radar, river and raingage reports.

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

* Some locations that will experience flash flooding include...
  Andalusia, Bay Minette, Atmore, Greenville, Opp, Brewton, 
  Evergreen, Luverne, Century, Flomaton, Stockton, McCullough, East 
  Brewton, Georgiana, Uriah, Brantley, McKenzie, River Falls, 
  Castleberry and Excel.

As Sally moves those bands will begin to train across interior 
regions of the area and individual cells will repeatedly move over 
the same locations.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3121 8767 3176 8694 3187 8667 3189 8617
      3179 8620 3179 8615 3166 8615 3162 8618
      3162 8615 3154 8614 3153 8619 3117 8619
      3086 8788 3097 8788

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...5-10 INCHES IN 8 HOURS 

$$

JMM
4 follow-up statements
729 
WGUS54 KMOB 162001
FFWMOB
ALC013-035-039-041-053-162215-
/O.EXT.KMOB.FF.W.0033.000000T0000Z-200916T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
301 PM CDT Wed Sep 16 2020

The National Weather Service in Mobile has extended the

* Flash Flood Warning for...
  Butler County in south central Alabama...
  Conecuh County in south central Alabama...
  Covington County in south central Alabama...
  Crenshaw County in south central Alabama...
  Escambia County in south central Alabama...

* Until 515 PM CDT.

* At 300 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain over south central Alabama. Between 3 and 15 inches of 
  rain have fallen. Flash flooding is already occurring.

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

  SOURCE...Doppler radar.

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

* Some locations that will experience flash flooding include...
  Andalusia, Atmore, Greenville, Opp, Brewton, Evergreen, Luverne, 
  Flomaton, East Brewton, Georgiana, Brantley, McKenzie, River 
  Falls, Castleberry, Red Level, Rutledge, Dozier, Heath, Gantt and 
  Glenwood.

Additional rainfall amounts of 2 to 5 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3175 8690 3187 8667 3189 8617 3179 8620
      3179 8615 3166 8615 3162 8618 3162 8615
      3154 8614 3153 8619 3117 8619 3100 8713
      3100 8762

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...2-5 INCHES IN 4 HOURS 

$$

TRC
728 
WGUS74 KMOB 162001
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
301 PM CDT Wed Sep 16 2020

ALC003-099-FLC033-162011-
/O.CAN.KMOB.FF.W.0033.000000T0000Z-200916T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Baldwin AL-Monroe AL-Escambia FL-
301 PM CDT Wed Sep 16 2020

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN MONROE, NORTH 
CENTRAL BALDWIN AND NORTHWESTERN ESCAMBIA COUNTIES...

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

A Flash Flood Watch remains in effect until 700 AM CDT Thursday for 
portions of Alabama and northwest Florida.

LAT...LON 3175 8690 3187 8667 3189 8617 3179 8620
      3179 8615 3166 8615 3162 8618 3162 8615
      3154 8614 3153 8619 3117 8619 3100 8713
      3100 8762

$$

TRC
389 
WGUS54 KMOB 162151
FFWMOB
ALC013-035-039-041-162345-
/O.EXT.KMOB.FF.W.0033.000000T0000Z-200916T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
451 PM CDT Wed Sep 16 2020

The National Weather Service in Mobile has extended the

* Flash Flood Warning for...
  Butler County in south central Alabama...
  Northeastern Conecuh County in south central Alabama...
  Northern Covington County in south central Alabama...
  Crenshaw County in south central Alabama...

* Until 645 PM CDT.

* At 448 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain in A portion of south central Alabama. Between 3.5 and 
  12 inches of rain have fallen. Flash flooding is already occurring.

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

  SOURCE...Doppler radar.

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

* Some locations that will experience flash flooding include...
  Andalusia, Greenville, Luverne, Georgiana, Brantley, McKenzie, 
  River Falls, Red Level, Rutledge, Dozier, Heath, Gantt, Glenwood, 
  Petrey, Oaky Streak, Pigeon Creek, Mulberry, Industry, Merrill 
  Mill and Leon.

Additional rainfall amounts of 2 to 4 inches are possible in the 
warned area.

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 3144 8685 3164 8693 3175 8690 3187 8667
      3189 8617 3179 8620 3179 8615 3166 8615
      3162 8618 3162 8615 3154 8614 3153 8619
      3129 8619 3129 8670

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL...2-4 INCHES IN 2 HOURS 

$$

TRC
390 
WGUS74 KMOB 162151
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
451 PM CDT Wed Sep 16 2020

ALC053-162201-
/O.CAN.KMOB.FF.W.0033.000000T0000Z-200916T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Escambia AL-
451 PM CDT Wed Sep 16 2020

...FLASH FLOOD WARNING IS CANCELLED FOR ESCAMBIA COUNTY...

The heavy rain has ended, but flood waters may linger for several 
more hours before gradually receding. An Areal Flood Warning is now 
in effect. Please continue to heed remaining road closures.

A Flash Flood Watch remains in effect until 700 AM CDT Thursday for 
portions of Alabama and northwest Florida.

LAT...LON 3144 8685 3164 8693 3175 8690 3187 8667
      3189 8617 3179 8620 3179 8615 3166 8615
      3162 8618 3162 8615 3154 8614 3153 8619
      3129 8619 3129 8670

$$

TRC

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 15, 7:31 PM CDTSpecial Marine WarningMOB59 min
Sep 15, 8:16 PM CDTSpecial Marine WarningMOB44 min
Sep 15, 8:29 PM CDTAreal Flood AdvisoryMOBMobile4 hr
Sep 15, 9:54 PM CDTAreal Flood AdvisoryMOBBaldwin, Covington, Escambia6 hr
Sep 15, 10:53 PM CDTRiver Flood WarningMOBCovington5 days
Sep 15, 11:00 PM CDTFlash Flood Warning Considerable damage threatMOBBaldwin, Mobile8 hr
Sep 15, 11:40 PM CDTSpecial Marine WarningMOB25 min
Sep 16, 1:03 AM CDTFlash Flood Warning EmergencyCatastrophic damage threatMOBBaldwin6 hr
Sep 16, 1:32 AM CDTSpecial Marine WarningMOB88 min
Sep 16, 2:08 AM CDTSpecial Marine WarningMOB22 min
Sep 16, 2:57 AM CDTSpecial Marine WarningMOB2 hr
Sep 16, 3:58 AM CDTFlash Flood WarningMOBBaldwin, Butler, Conecuh, Covington, Crenshaw, Escambia and 1 more6 hr
Sep 16, 5:00 AM CDTFlash Flood WarningMOBBaldwin, Covington, Escambia10 hr
Sep 16, 9:33 AM CDTFlash Flood Warning EmergencyCatastrophic damage threatMOBBaldwin8 hr
Sep 16, 1:21 PM CDTCoastal Flood AdvisoryMOBBaldwin, Mobile15 hr
Sep 16, 1:21 PM CDTHigh Surf AdvisoryMOBBaldwin, Mobile15 hr
Sep 16, 1:35 PM CDTWind AdvisoryMOBBaldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more10 hr
Sep 16, 2:26 PM CDTAreal Flood WarningMOBBaldwin12 hr
Sep 16, 3:04 PM CDTFlash Flood WarningMOBCovington, Escambia116 min
Sep 16, 4:18 PM CDTSmall Craft AdvisoryMOB14 hr
Sep 16, 4:45 PM CDTAreal Flood WarningMOBButler, Conecuh, Covington, Crenshaw, Escambia12 hr
Sep 15, 11:36 PM CDTTornado WarningMOBEscambia, Santa Rosa28 min
Sep 16, 2:59 AM CDTTornado WarningMOBSanta Rosa31 min
Sep 16, 3:42 AM CDTTornado WarningMOBSanta Rosa15 min
Sep 16, 3:44 AM CDTTornado WarningMOBOkaloosa16 min
Sep 16, 3:45 AM CDTFlash Flood Warning EmergencyCatastrophic damage threatMOBOkaloosa, Santa Rosa8 hr
Sep 16, 4:00 AM CDTTornado WarningMOBOkaloosa15 min

Nearby

Flash Flood Warnings in Alabama, 2020Flash Flood Warnings in Florida, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.