Alert archive / Mississippi / Flash Flood Warnings in 2017

Flash Flood Warning 50, NWS Mobile, AL

June 23, 2017Wayne County, Mississippi

NWS Mobile, AL issued this flash flood warning at Jun 23, 2017, 4:12 PM CDT for Wayne County, Mississippi. 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 23, 2017, 4:12 PM CDT (21:12 UTC)
Expired: Jun 23, 2017, 10:15 PM CDT
In force: 6 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Wayne County, MS

The radar

The Mobile radar (KMOB), 120 km from the middle of the area, began a volume at 21:13 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

Jackson, MS (KJAN), launched 12:00Z, 9.2 hours before the alert went out and 148 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: 683 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 594 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 211 m²/s²
0-3 km storm-relative helicity: 232 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted.

199 
WGUS54 KMOB 232112
FFWMOB
MSC153-240315-
/O.NEW.KMOB.FF.W.0050.170623T2112Z-170624T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mobile AL
412 PM CDT FRI JUN 23 2017

The National Weather Service in Mobile has issued a

* Flash Flood Warning for...
  Wayne County in southeastern Mississippi...

* Until 1015 PM CDT Friday

* At 410 PM CDT, thunderstorms producing heavy rain were repeatedly 
  moving across the warned area. Doppler radar indicated rainfall 
  rates around 1.5 inches an hour will be possible across northern 
  Wayne County. Given the rainfall which has occurred over the past 
  several days, flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Waynesboro, Clara and Buckatunna. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3182 8894 3184 8847 3156 8846 3153 8848
      3154 8894

$$

Butts

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 22, 7:17 PM CDT	Special Weather Statement	MOB	George, Greene	88 min
Jun 22, 8:47 PM CDT	Special Weather Statement	MOB	George, Greene, Perry, Stone, Wayne	88 min
Jun 22, 10:49 PM CDT	Special Weather Statement	MOB	George, Greene, Perry, Stone, Wayne	86 min
Jun 22, 11:25 PM CDT	Flash Flood Warning	MOB	George	6 hr
Jun 23, 3:10 PM CDT	Special Weather Statement	MOB	Wayne	50 min
Jun 23, 4:36 PM CDT	Special Weather Statement	MOB	Greene, Perry, Wayne	39 min
Jun 23, 4:58 PM CDT	Special Weather Statement	MOB	Wayne	47 min
Jun 23, 5:15 PM CDT	Special Weather Statement	MOB	Greene, Perry, Stone	45 min
Jun 23, 6:00 PM CDT	Special Weather Statement	MOB	George, Greene, Stone	45 min
Jun 23, 6:56 PM CDT	Special Weather Statement	MOB	George, Greene, Stone	49 min

Nearby

Flash Flood Warnings in Mississippi, 2017 Every flash flood warning in 2017

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.