Alert archive / Mississippi / Flash Flood Warnings in 2014

Flash Flood Warning 2, NWS Mobile, AL

March 16, 2014Perry County, Mississippi

NWS Mobile, AL issued this flash flood warning at Mar 16, 2014, 7:11 AM CDT for Perry County, Mississippi. It was in force for 3 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: Mar 16, 2014, 7:11 AM CDT (12:11 UTC)
Expired: Mar 16, 2014, 10:15 AM CDT
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Flood severity: None

County Perry County, MS

The radar

The Mobile radar (KMOB), 97 km from the middle of the area, began a volume at 12:10 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, 0.2 hours before the alert went out and 123 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: 1142 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 488 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 284 m²/s²
0-3 km storm-relative helicity: 283 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 8.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

924 
WGUS54 KMOB 161211
FFWMOB
MSC111-161515-
/O.NEW.KMOB.FF.W.0002.140316T1211Z-140316T1515Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
711 AM CDT SUN MAR 16 2014

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL PERRY COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 1015 AM CDT

* AT 706 AM CDT...VERY HEAVY RAINFALL WAS INDICATED OVER THE
  WARNED AREA AND RADAR ESTIMATES SHOW 2.5 TO 3.5 INCHES OF
  RAINFALL HAS OCCURRED OVER THE PAST HOUR WITH ADDITIONAL HEAVY
  RAINS CONTINUING TO FALL. THIS WILL LIKELY CAUSE FLASH FLOODING IN
  THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW AUGUSTA
  AND BEAUMONT

LAT...LON 3124 8915 3132 8884 3117 8884 3107 8915
      3120 8915

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 16, 3:44 AM CDT	Flash Flood Watch	MOB	George, Greene, Perry, Stone, Wayne	9 hr
Mar 16, 5:53 AM CDT	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	52 min
Mar 16, 6:31 AM CDT	Tornado Warning	MOB	Greene	44 min
Mar 16, 6:40 AM CDT	Areal Flood Advisory	MOB	Greene, Perry	2 hr
Mar 16, 6:43 AM CDT	Areal Flood Advisory	MOB	George	2 hr
Mar 16, 7:09 AM CDT	Flash Flood Warning	MOB	George	3 hr
Mar 16, 7:41 AM CDT	Flash Flood Warning	MOB	George	4 hr
Mar 16, 9:19 AM CDT	Areal Flood Warning	MOB	George	6 hr

Nearby

Flash Flood Warnings in Mississippi, 2014 Every flash flood warning in 2014

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.