Alert archive / Mississippi / Flash Flood Warnings in 2016

Flash Flood Warning 9, NWS Mobile, AL

March 11, 2016George County, Mississippi

NWS Mobile, AL issued this flash flood warning at Mar 11, 2016, 8:48 AM CST for George County, Mississippi. It was in force for 3 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: Mar 11, 2016, 8:48 AM CST (14:48 UTC)
Expired: Mar 11, 2016, 11:45 AM CST
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County George County, MS

The radar

The Mobile radar (KMOB), 54 km from the middle of the area, began a volume at 14:49 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
Mar 11, 10:00 AM CST	FLASH FLOOD	5 E Lucedale, MS	FLOODING IN THE INFIELD AT GEORGE COUNTY MOTORSPORTS PARK. REPORT RELAYED VIA SOCIAL MEDIA.

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, 2.8 hours before the alert went out and 113 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: 1067 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 479 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 320 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 10.4

Open this sounding in Storm Lab

The text

As transmitted.

486 
WGUS54 KMOB 111448
FFWMOB
MSC039-111745-
/O.NEW.KMOB.FF.W.0009.160311T1448Z-160311T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
848 AM CST FRI MAR 11 2016

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GEORGE COUNTY IN SOUTHEASTERN MISSISSIPPI...

* UNTIL 1145 AM CST
    
* AT 845 AM CST...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN
  LOCALLY HAS ALREADY FALLEN IN SOME AREAS. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LUCEDALE.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE IN THE
WARNED AREA THIS MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF NEEDED MOVE TO HIGHER GROUND NOW! ACT QUICKLY TO PROTECT YOUR
LIFE.

IF YOU ENCOUNTER FLOODED ROADS...TURN AROUND...DON'T DROWN! MOST FLOOD
DEATHS OCCUR IN VEHICLES.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 3084 8889 3091 8888 3091 8883 3098 8883
      3099 8843 3074 8843 3074 8889

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 10, 8:19 PM CST	Areal Flood Advisory	MOB	Greene, Perry, Wayne	3 hr
Mar 10, 8:39 PM CST	Flash Flood Warning	MOB	Greene, Perry, Wayne	2 hr
Mar 10, 10:52 PM CST	Areal Flood Warning	MOB	Greene, Perry, Wayne	9 hr
Mar 11, 2:14 AM CST	River Flood Warning	MOB	Perry	6 days
Mar 11, 2:22 AM CST	River Flood Warning	MOB	George, Greene, Perry	13 days
Mar 11, 2:30 AM CST	River Flood Warning	MOB	George, Greene, Wayne	15 days
Mar 11, 2:40 AM CST	River Flood Warning	MOB	George, Greene, Jackson	13 days
Mar 11, 6:42 AM CST	Special Weather Statement	MOB	Perry, Stone	63 min
Mar 11, 7:28 AM CST	Flash Flood Warning	MOB	Perry, Stone	3 hr
Mar 11, 7:34 AM CST	Areal Flood Warning	MOB	Greene, Wayne	6 hr
Mar 11, 7:36 AM CST	River Flood Warning	MOB	Greene, Wayne	6 days
Mar 11, 8:01 AM CST	Special Weather Statement	MOB	George	44 min
Mar 11, 8:15 AM CST	Severe Thunderstorm Warning	MOB	George, Greene	30 min
Mar 11, 8:45 AM CST	Special Weather Statement	MOB	Greene	60 min
Mar 11, 9:15 AM CST	Flash Flood Warning	MOB	Greene, Wayne	5 hr
Mar 11, 10:29 AM CST	Flash Flood Warning	MOB	Perry, Stone	6 hr
Mar 11, 11:43 AM CST	Flash Flood Warning	MOB	George	5 hr
Mar 11, 2:14 PM CST	Areal Flood Warning	MOB	George, Greene, Perry, Stone, Wayne	24 hr

Nearby

Flash Flood Warnings in Mississippi, 2016 Every flash flood warning in 2016

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.