Alert archive / Florida / Flash Flood Warnings in 2021

Flash Flood Warning 52, NWS Mobile, AL

August 29, 2021Escambia County, Florida

NWS Mobile, AL issued this flash flood warning at Aug 29, 2021, 10:06 AM CDT for Escambia County, Florida. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 29, 2021, 10:06 AM CDT (15:06 UTC)
Expired: Aug 29, 2021, 4:15 PM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Escambia County, FL

The radar

The Mobile radar (KMOB), 94 km from the middle of the area, began a volume at 15:08 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.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 3.1 hours before the alert went out and 236 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3256 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted.

876 
WGUS54 KMOB 291506
FFWMOB
FLC033-292115-
/O.NEW.KMOB.FF.W.0052.210829T1506Z-210829T2115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
1006 AM CDT Sun Aug 29 2021

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  South Central Escambia County in northwestern Florida...

* Until 415 PM CDT Sunday.

* At 1006 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. 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...
  Pensacola, Ferry Pass, Brent, West Pensacola, Ensley, Gonzalez, 
  Goulding, Myrtle Grove, Olive, Pine Forest, Bellview, Avondale, 
  Brownsville, Cantonment, Cottage Hill and Beulah.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3056 8743 3060 8741 3067 8728 3063 8726
      3061 8726 3061 8724 3057 8722 3059 8722
      3057 8721 3056 8721 3056 8720 3046 8712
      3038 8729

FLASH FLOOD...RADAR INDICATED

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 9:51 PM CDT	Severe Thunderstorm Warning	MOB	Escambia	39 min
Aug 29, 12:53 AM CDT	Special Weather Statement	MOB	Santa Rosa	52 min
Aug 29, 1:27 AM CDT	Special Weather Statement	MOB	Escambia	48 min
Aug 29, 1:30 AM CDT	Wind Advisory	MOB	Escambia, Okaloosa, Santa Rosa	57 hr
Aug 29, 8:41 AM CDT	Tornado Warning	MOB	Escambia	36 min
Aug 29, 9:18 AM CDT	Areal Flood Advisory	MOB	Escambia	3 hr
Aug 29, 10:03 AM CDT	Special Weather Statement	MOB	Escambia, Okaloosa, Santa Rosa	87 min
Aug 29, 10:14 AM CDT	River Flood Warning	MOB	Escambia	5 days
Aug 29, 10:35 AM CDT	Areal Flood Advisory	MOB	Escambia	3 hr
Aug 29, 11:11 AM CDT	Flash Flood Warning	MOB	Escambia	6 hr
Aug 29, 1:46 PM CDT	Special Weather Statement	MOB	Escambia, Okaloosa, Santa Rosa	89 min
Aug 29, 3:45 PM CDT	Tornado Warning	MOB	Escambia	45 min
Aug 29, 4:28 PM CDT	Flash Flood Warning	MOB	Escambia	6 hr
Aug 29, 5:25 PM CDT	Flash Flood Warning	MOB	Escambia, Santa Rosa	6 hr

Nearby

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.