Alert archive / Mississippi / Flash Flood Warnings in 2013

Flash Flood Warning 55, NWS Mobile, AL

December 22, 2013George County, Greene County, Stone County, Mississippi

NWS Mobile, AL issued this flash flood warning at Dec 22, 2013, 5:31 AM CST for George County, Greene County, Stone 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
Dec 22, 2013, 5:31 AM CST (11:31 UTC)
Expired
Dec 22, 2013, 8:30 AM CST
In force
3 hr
Issued by
NWS Mobile, AL
Area
Storm-based polygon
Flood severity
None

Counties George County, MS, Greene County, MS, Stone County, MS

The radar

The Mobile radar (KMOB), 48 km from the middle of the area, began a volume at 11:31 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, 11.5 hours before the alert went out and 118 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-pSkew-T log-p diagram, Slidell Radar S, LA at 00:00Z on 2013-12-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1006 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Slidell Radar S, LA at 00:00Z on 2013-12-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 322 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1006 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
322 m²/s²
0-3 km storm-relative helicity
363 m²/s²
Significant tornado parameter
2.3
Supercell composite
10.8

Open this sounding in Storm Lab

The text

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

834 
WGUS54 KMOB 221131
FFWMOB
MSC039-041-131-221430-
/O.NEW.KMOB.FF.W.0055.131222T1131Z-131222T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MOBILE AL
531 AM CST SUN DEC 22 2013

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI...
  THIS INCLUDES THE CITY OF LUCEDALE...
  SOUTHEASTERN GREENE COUNTY IN SOUTHEAST MISSISSIPPI...
  SOUTHEASTERN STONE COUNTY IN SOUTHEAST MISSISSIPPI...

* UNTIL 830 AM CST

* AT 528 AM CST...VERY HEAVY RAINFALL WAS INDICATED OVER THE
  WARNED AREA AND RADAR ESTIMATES SHOW 2 TO 2.5 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 ROCK
  CREEK...VERNAL...EVANSTON AND BEXLEY.

LAT...LON 3110 8854 3105 8843 3100 8842 3073 8866
      3073 8888 3068 8888 3067 8889 3067 8903

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 22, 4:10 AM CSTAreal Flood AdvisoryMOBGeorge, Greene2 hr
Dec 22, 4:25 AM CSTFlash Flood WarningMOBGreene3 hr
Dec 22, 5:02 AM CSTAreal Flood AdvisoryMOBStone118 min
Dec 22, 7:05 AM CSTAreal Flood AdvisoryMOBGeorge115 min

Nearby

Flash Flood Warnings in Mississippi, 2013Every flash flood warning in 2013

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.