Alert archive / Alabama / Flash Flood Warnings in 2021

Flash Flood Warning 79, NWS Mobile, AL

September 15, 2021Baldwin County, Alabama

NWS Mobile, AL issued this flash flood warning at Sep 15, 2021, 12:30 PM CDT for Baldwin County, Alabama. It was in force for 6 hr. 5 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 15, 2021, 12:30 PM CDT (17:30 UTC)
Expired
Sep 15, 2021, 6:30 PM CDT
In force
6 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

County Baldwin County, AL

The radar

The Mobile radar (KMOB), 56 km from the middle of the area, began a volume at 17:33 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 15, 2:05 PM CDTFLASH FLOOD2 Nne Romar Beach, ALWILLIAM SILVERS PKWY AND THE EAST BOUND LANES OF CANAL ROAD ARE FLOODED. JUBILEE POINT AND MARINA ROAD ARE ALSO FLOODED.
Sep 15, 2:05 PM CDTFLASH FLOOD4 Ese Miflin, ALCOUNTY ROAD 95 BETWEEN COUNTY ROAD 20 AND FITZPATRICK LANE HAS RISING WATER OVER THE ROAD.
Sep 15, 2:30 PM CDTFLASH FLOOD3 E Elberta, ALCOUNTY ROAD 95, SOUTH OF HIGHWAY 98, FLOODED. NUMEROUS PLACES UNDER WATER.
Sep 15, 2:45 PM CDTFLASH FLOOD1 W Lillian, ALFAST MOVING WATER OVER HIGHWAY 98 IN LILLIAN IS WASHING CARS OFF THE ROAD. A RESCUE HAD TO BE PERFORMED AT THE LILLIAN POST OFFICE DUE TO A PERSON BEING STUCK IN THEIR VEHICLE DUE TO FLOOD WATERS. COUNTY ROAD 99 AT PEARSON BRANCH BRIDGE IS ALSO CLOSED DUE TO F
Sep 15, 3:05 PM CDTFLASH FLOOD1 E Seminole, ALPORTION OF LIATRUS LANE NEAR JUNIPER ROAD IN SEMINOLE IS STARTING TO CAVE IN. APPROXIMATELY A 6 TO 10 FOOT SINK HOLE IS DEVELOPING.

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

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 5.5 hours before the alert went out and 191 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, Slidell Radar S, LA at 12:00Z on 2021-09-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 joules per kilogram.LCLLFCEL10008507005003002001001 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, Slidell Radar S, LA at 12:00Z on 2021-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.1939Sfc1 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
84 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
695 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
285 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

054 
WGUS54 KMOB 151730
FFWMOB
ALC003-152330-
/O.NEW.KMOB.FF.W.0079.210915T1730Z-210915T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1230 PM CDT Wed Sep 15 2021

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Southern Baldwin County in southwestern Alabama...

* Until 630 PM CDT.

* At 1230 PM CDT, Doppler radar indicated bands of showers and 
  thunderstorms producing very heavy rain across the warned area. 
  Between 2 and 4 inches of rain with isolated higher totals have 
  fallen across much of southern Baldwin county. Additional showers 
  and storms capable of producing torrential rainfall will continue 
  to move into the warned area through this afternoon. 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...
  Daphne, Fairhope, Gulf Shores, Foley, Orange Beach, Spanish Fort, 
  Robertsdale, Point Clear, Loxley, Magnolia Springs, Stapleton, Bon 
  Secour, Summerdale, Silverhill, Perdido Beach, Elberta, Fort 
  Morgan, Marlow, Clay City and River Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3020 8806 3034 8801 3036 8797 3039 8800
      3054 8795 3090 8793 3067 8762 3061 8742
      3056 8743 3051 8745 3050 8743 3042 8744
      3028 8754 3027 8754 3022 8777

FLASH FLOOD...RADAR INDICATED

$$

21/CLL
1 follow-up statement
204 
WGUS74 KMOB 151939
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
239 PM CDT Wed Sep 15 2021

ALC003-152330-
/O.CON.KMOB.FF.W.0079.000000T0000Z-210915T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Baldwin AL-
239 PM CDT Wed Sep 15 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 PM CDT THIS 
EVENING FOR SOUTHERN BALDWIN COUNTY...

At 239 PM CDT, Doppler radar indicated bands of showers and 
thunderstorms producing moderate to heavy rain across the warned 
area. Between 3 and 5 inches of rain with isolated higher totals 
over 6 inches have fallen across much of southern Baldwin county. At 
230 PM CDT, Baldwin County Emergency Management officials reported 
water covering the roads in numerous places, including near the 
communities of Elberta, Miflin, and Orange Beach.

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...
  Daphne, Fairhope, Gulf Shores, Foley, Orange Beach, Spanish Fort, 
  Robertsdale, Point Clear, Loxley, Magnolia Springs, Stapleton, Bon 
  Secour, Summerdale, Silverhill, Perdido Beach, Elberta, Fort 
  Morgan, Marlow, Clay City and River Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3020 8806 3034 8801 3036 8797 3039 8800
      3054 8795 3090 8793 3067 8762 3061 8742
      3056 8743 3051 8745 3050 8743 3042 8744
      3028 8754 3027 8754 3022 8777

FLASH FLOOD...OBSERVED

$$

21/CLL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 14, 7:17 PM CDTSpecial Marine WarningMOB28 min
Sep 14, 8:12 PM CDTRiver Flood WarningMOBBaldwin38 hr
Sep 15, 4:21 AM CDTSpecial Marine WarningMOB39 min
Sep 15, 8:33 AM CDTSpecial Marine WarningMOB87 min
Sep 15, 8:58 AM CDTAreal Flood AdvisoryMOBBaldwin, Mobile4 hr
Sep 15, 10:11 AM CDTFlash Flood WarningMOBMobile6 hr
Sep 15, 10:43 AM CDTRip Current StatementMOBBaldwin, Mobile64 hr
Sep 15, 11:00 AM CDTSpecial Marine WarningMOB90 min
Sep 15, 11:16 AM CDTSpecial Weather StatementMOBMobile44 min
Sep 15, 1:46 PM CDTFlash Flood WarningMOBBaldwin6 hr
Sep 15, 2:03 PM CDTSpecial Marine WarningMOB87 min
Sep 15, 3:17 PM CDTRiver Flood WarningMOBBaldwin29 hr
Sep 15, 3:20 PM CDTSpecial Marine WarningMOB85 min
Sep 15, 3:21 PM CDTRiver Flood WarningMOBBaldwin6 hr
Sep 15, 4:33 PM CDTAreal Flood WarningMOBBaldwin, Mobile9 hr
Sep 15, 4:48 PM CDTSpecial Marine WarningMOB57 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.