Alert archive / Alabama / Flash Flood Warnings in 2020

Flash Flood Warning 14, NWS Mobile, AL

June 7, 2020Mobile County, Alabama

NWS Mobile, AL issued this flash flood warning at Jun 7, 2020, 9:02 PM CDT for Mobile County, Alabama. 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: Jun 7, 2020, 9:02 PM CDT (02:02 UTC)
Expired: Jun 8, 2020, 3:15 AM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Mobile County, AL

The radar

The Mobile radar (KMOB), 22 km from the middle of the area, began a volume at 02:07 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 00:00Z, 2.0 hours before the alert went out and 137 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: 116 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 740 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 4 m²/s²
0-3 km storm-relative helicity: 57 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

114 
WGUS54 KMOB 080202
FFWMOB
ALC097-080815-
/O.NEW.KMOB.FF.W.0014.200608T0202Z-200608T0815Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
902 PM CDT Sun Jun 7 2020

The National Weather Service in Mobile has issued a

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

* Until 315 AM CDT Monday.

* At 901 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Doppler radar.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other
           drainage and low lying areas.

* Some locations that will experience flash flooding include...
  Theodore, Grand Bay, Bayou La Batre, Dauphin Island, Tanner 
  Williams, Coden, Alabama Port, Wilmer, Dixon Corner, Saint Elmo, 
  Irvington, Kirewakra, Fowl River, Laurendine, South Orchard, 
  Delchamps, Smithport, Bayleys Corner, Dees and Meadow Lake.

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 3085 8841 3081 8828 3062 8828 3056 8818
      3055 8808 3024 8806 3013 8833 3014 8836
      3034 8840 3039 8840 3039 8839

FLASH FLOOD...RADAR INDICATED

$$

MOB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 7:23 PM CDT	Flash Flood Warning	MOB	Baldwin	6 hr
Jun 7, 8:09 PM CDT	Special Marine Warning	MOB		66 min
Jun 7, 9:47 PM CDT	Special Marine Warning	MOB		43 min
Jun 7, 9:50 PM CDT	River Flood Warning	MOB	Mobile	21 days
Jun 7, 10:38 PM CDT	Flash Flood Warning	MOB	Baldwin, Mobile, Washington	6 hr
Jun 7, 11:54 PM CDT	Coastal Flood Warning	MOB	Baldwin, Mobile	19 hr
Jun 8, 12:36 AM CDT	Flash Flood Warning	MOB	Baldwin, Choctaw, Clarke, Monroe, Washington	6 hr
Jun 8, 1:42 AM CDT	Flash Flood Warning	MOB	Butler, Clarke, Conecuh, Covington, Crenshaw, Monroe and 1 more	6 hr
Jun 8, 5:04 AM CDT	Areal Flood Warning	MOB	Baldwin, Mobile, Washington	12 hr
Jun 8, 6:18 AM CDT	Flash Flood Warning	MOB	Mobile, Washington	6 hr
Jun 8, 7:09 AM CDT	Gale Warning	MOB		3 hr
Jun 8, 7:09 AM CDT	Small Craft Advisory	MOB		15 hr
Jun 8, 12:14 PM CDT	Flash Flood Warning	MOB	Mobile, Washington	6 hr
Jun 8, 12:48 PM CDT	Special Marine Warning	MOB		87 min
Jun 8, 1:16 PM CDT	Special Weather Statement	MOB	Mobile	44 min
Jun 8, 1:57 PM CDT	High Surf Advisory	MOB	Baldwin, Mobile	14 hr

Nearby

Flash Flood Warnings in Alabama, 2020 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.