Alert archive / Alabama / Flash Flood Warnings in 2021

Flash Flood Warning 39, NWS Mobile, AL

July 6, 2021Baldwin County, Alabama; Escambia County, Florida

NWS Mobile, AL issued this flash flood warning at Jul 6, 2021, 7:54 AM CDT for Baldwin County, Alabama; Escambia County, Florida. It was in force for 5 hr. 1 report 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: Jul 6, 2021, 7:54 AM CDT (12:54 UTC)
Expired: Jul 6, 2021, 12:27 PM CDT
In force: 5 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

Counties Baldwin County, AL, Escambia County, FL

The radar

The Mobile radar (KMOB), 69 km from the middle of the area, began a volume at 12:56 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
Jul 6, 9:10 AM CDT	FLASH FLOOD	Orange Beach, AL	VIDEO AND NEWS STORY WITH FLOODING IN ORANGE BEACH, ALABAMA. KNEE HIGH WATER IN SOME LOCATIONS APPROACHING HOMES. TIME ESTIMATED BY RADAR.

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, 0.9 hours before the alert went out and 198 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: 1603 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 634 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: -1 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

709 
WGUS54 KMOB 061254
FFWMOB
ALC003-FLC033-061900-
/O.NEW.KMOB.FF.W.0039.210706T1254Z-210706T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
754 AM CDT Tue Jul 6 2021

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Southeastern Baldwin County in southwestern Alabama...
  South Central Escambia County in northwestern Florida...

* Until 200 PM CDT Tuesday.

* At 754 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 3 inches of rain 
  have fallen. 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...
  Gulf Shores, Foley, Orange Beach, Lillian, Bon Secour, Perdido 
  Beach, Elberta, Josephine, Miflin, Caswell, Perdido Heights, 
  Perdido Bay, Paradise Beach, Chanticleer and Seaglades.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3030 8777 3041 8773 3052 8741 3030 8735
      3023 8779

FLASH FLOOD...RADAR INDICATED

$$

1 follow-up statement

694 
WGUS74 KMOB 061727
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
1227 PM CDT Tue Jul 6 2021

ALC003-FLC033-061737-
/O.CAN.KMOB.FF.W.0039.000000T0000Z-210706T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Baldwin AL-Escambia FL-
1227 PM CDT Tue Jul 6 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN BALDWIN AND 
SOUTH CENTRAL ESCAMBIA COUNTIES...

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

LAT...LON 3030 8777 3041 8773 3052 8741 3030 8735
      3023 8779

$$

Black

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 9:26 PM CDT	Rip Current Statement	MOB	Baldwin, Mobile	62 hr
Jul 6, 4:11 AM CDT	Areal Flood Advisory	MOB	Mobile	3 hr
Jul 6, 4:22 AM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Jul 6, 7:02 AM CDT	Areal Flood Advisory	MOB	Baldwin	4 hr
Jul 6, 8:22 AM CDT	Special Marine Warning	MOB		65 min
Jul 6, 12:19 PM CDT	Special Marine Warning	MOB		62 min
Jul 6, 6:49 PM CDT	High Surf Advisory	MOB	Baldwin	24 hr
Jul 6, 5:24 AM CDT	Areal Flood Advisory	MOB	Okaloosa, Santa Rosa	4 hr
Jul 6, 6:12 PM CDT	Areal Flood Advisory	MOB	Okaloosa	3 hr

Nearby

Flash Flood Warnings in Alabama, 2021 Flash Flood Warnings in Florida, 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.