Alert archive / Mississippi / Flash Flood Warnings in 2005

Flash Flood Warning 39, NWS Jackson, MS

May 20, 20054 counties in Mississippi

NWS Jackson, MS issued this flash flood warning at May 20, 2005, 9:16 PM CDT for 4 counties in Mississippi. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 20, 2005, 9:16 PM CDT (02:16 UTC)
Expired: May 20, 2005, 11:15 PM CDT
In force: 119 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

Counties Copiah County, MS, Hinds County, MS, Rankin County, MS, Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 35 km from the middle of the area, began a volume at 02:17 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 00:00Z, 2.3 hours before the alert went out and 35 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: 1048 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1512 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 229 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KJAN 210216
FFWJAN
MSC029-049-121-127-210415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
916 PM CDT FRI MAY 20 2005

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN COPIAH COUNTY IN CENTRAL MISSISSIPPI
  THIS INCLUDES THE CITIES OF...HAZLEHURST...CRYSTAL SPRINGS
  SOUTHERN HINDS COUNTY IN CENTRAL MISSISSIPPI
  SOUTHWESTERN RANKIN COUNTY IN CENTRAL MISSISSIPPI
  WESTERN SIMPSON COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 1115 PM CDT

* AT 916 PM CDT...TRAINED WEATHER SPOTTERS REPORTED FLASH FLOODING   
FROM A THUNDERSTORMS OVER WESTERN RANKIN AND EASTERN HINDS COUNTIES.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PINOLA AND LORMAN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 3210 8993 3227 9058 3179 9055 3180 8988

$$

BANNAN

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 20, 7:03 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	57 min
May 20, 7:37 PM CDT	Severe Thunderstorm Warning	JAN	Madison, Rankin	53 min
May 20, 8:00 PM CDT	Severe Thunderstorm Warning	JAN	Yazoo	30 min
May 20, 8:19 PM CDT	Severe Thunderstorm Warning	JAN	Hinds, Madison	56 min
May 20, 8:29 PM CDT	Severe Thunderstorm Warning	JAN	Rankin, Simpson	61 min
May 20, 8:31 PM CDT	Severe Thunderstorm Warning	JAN	Clarke	44 min
May 20, 8:59 PM CDT	Severe Thunderstorm Warning	JAN	Jones	46 min
May 20, 9:07 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds, Rankin, Simpson	53 min
May 20, 9:43 PM CDT	Severe Thunderstorm Warning	JAN	Copiah, Hinds	47 min
May 20, 9:56 PM CDT	Severe Thunderstorm Warning	JAN	Covington, Forrest, Jefferson Davis, Lamar	49 min
May 20, 10:32 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson Davis, Marion	28 min
May 20, 10:33 PM CDT	Severe Thunderstorm Warning	JAN	Franklin, Jefferson, Lincoln	42 min
May 20, 10:50 PM CDT	Severe Thunderstorm Warning	JAN	Lamar	25 min
May 20, 11:24 PM CDT	Severe Thunderstorm Warning	JAN	Jefferson	26 min

Nearby

Flash Flood Warnings in Mississippi, 2005 Every flash flood warning in 2005

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.