Alert archive / Mississippi / Flash Flood Warnings in 2021

Flash Flood Warning 27, NWS Mobile, AL

June 6, 2021Stone County, Mississippi

NWS Mobile, AL issued this flash flood warning at Jun 6, 2021, 3:37 PM CDT for Stone County, Mississippi. It was in force for 5 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 6, 2021, 3:37 PM CDT (20:37 UTC)
Expired: Jun 6, 2021, 8:16 PM CDT
In force: 5 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Stone County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.6 hours before the alert went out and 72 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: 1791 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 571 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 9.7

Open this sounding in Storm Lab

The text

As transmitted.

112 
WGUS54 KMOB 062037
FFWMOB
MSC131-070230-
/O.NEW.KMOB.FF.W.0027.210606T2037Z-210607T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
337 PM CDT Sun Jun 6 2021

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Western Stone County in southeastern Mississippi...

* Until 930 PM CDT.

* At 337 PM CDT, Doppler radar indicated showers and thunderstorms 
  producing torrential rainfall across the warned area. Between 2 
  and 3 inches of rain is estimated to have fallen during the past 1 
  to 2 hours and additional heavy rains will train over the warned 
  area 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...
  Texas and Bond.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3091 8915 3068 8917 3068 8918 3068 8924
      3065 8924 3065 8934 3090 8934

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

1 follow-up statement

851 
WGUS74 KMOB 070116
FFSMOB

Flash Flood Statement
National Weather Service Mobile AL
816 PM CDT Sun Jun 6 2021

MSC131-070126-
/O.CAN.KMOB.FF.W.0027.000000T0000Z-210607T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Stone MS-
816 PM CDT Sun Jun 6 2021

...FLASH FLOOD WARNING IS CANCELLED FOR WESTERN STONE COUNTY...

The heavy rain has moved further east and out of the area. Flooding 
is no longer expected to pose a threat. Please continue to heed 
remaining road closures.

LAT...LON 3091 8915 3068 8917 3068 8918 3068 8924
      3065 8924 3065 8934 3090 8934

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 8:30 PM CDT	Flash Flood Watch	MOB	George, Greene, Perry, Stone, Wayne	28 hr
Jun 6, 8:54 AM CDT	Special Weather Statement	MOB	Wayne	51 min
Jun 6, 10:37 AM CDT	Special Weather Statement	MOB	Wayne	53 min
Jun 6, 10:54 AM CDT	Special Weather Statement	MOB	Perry	36 min
Jun 6, 2:02 PM CDT	Areal Flood Advisory	MOB	Perry	3 hr
Jun 6, 2:02 PM CDT	Special Weather Statement	MOB	Wayne	43 min
Jun 6, 2:59 PM CDT	Areal Flood Advisory	MOB	Stone	4 hr
Jun 6, 4:39 PM CDT	Special Weather Statement	MOB	George	51 min
Jun 6, 5:05 PM CDT	Areal Flood Advisory	MOB	George, Greene, Perry, Stone, Wayne	4 hr

Nearby

Flash Flood Warnings in Mississippi, 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.