Alert archive / Mississippi / Flash Flood Warnings in 2004

Flash Flood Warning 97, NWS Jackson, MS

December 9, 2004Simpson County, Mississippi

NWS Jackson, MS issued this flash flood warning at Dec 9, 2004, 3:28 AM CST for Simpson 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 9, 2004, 3:28 AM CST (09:28 UTC)
Expired: Dec 9, 2004, 6:30 AM CST
In force: 3 hr
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Simpson County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 41 km from the middle of the area, began a volume at 09:32 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, 9.5 hours before the alert went out and 47 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1274 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 193 m²/s²
0-3 km storm-relative helicity: 241 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KJAN 090930
FFWJAN
MSC127-091230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
328 AM CST THU DEC 9 2004

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SIMPSON COUNTY IN CENTRAL MISSISSIPPI
  THIS INCLUDES THE CITIES OF...MENDENHALL...MAGEE

* UNTIL 630 AM CST

* AT 328 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR A BAND OF 
THUNDERSTORMS WITH VERY HEAVY RAIN MOVING INTO SIMPSON COUNTY.  
RAINFALL RATES OF 1 TO 2 INCHES PER HOUR ARE EXPECTED

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  HARRISVILLE.

ADDITIONAL RAINFALL AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.  A BAND OF 1 TO 2 INCHES OF RAIN ALREADY FELL LAST 
EVENING OVER CENTRAL PORTIONS OF SIMPSON COUNTY. 

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

LAT...LON 3176 9008 3188 8966 3206 8968 3205 9002
      3196 9016

$$

CRAVEN

1 follow-up statement

000 
WGUS74 KJAN 091214
FFSJAN

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
615 AM CST THU DEC 9 2004

MSC127-091245-
SIMPSON MS-
615 AM CST THU DEC 9 2004

...A FLASH FLOOD WARNING WILL EXPIRE AT 630 AM CST FOR SIMPSON 
COUNTY...

AT 610 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
THUNDERSTORM WITH VERY HEAVY RAIN MOVING ACROSS CENTRAL PORTIONS OF 
SIMPSON COUNTY.  THIS STORM SHOULD MOVE EAST OF THE AREA BY 630 AM 
AND THE THREAT FOR ADDITIONAL HEAVY RAIN SHOULD BE OVER FOR THE DAY.

DOPPLER RADAR INDICATES THAT 3 TO 4 INCHES OF RAIN HAS FALLEN 
OVERNIGHT IN A NARROW BAND FROM 2 MILES NORTHWEST OF LORMAN TO JUST 
NORTH OF MENDENHALL.

TURN AROUND...DONT DROWN IF YOU ENCOUNTER FLOODED ROADWAYS.  
FLOODING OF STREAMS...CREEKS...AND LOW LYING AREAS SHOULD CONTINUE 
FOR A WHILE THIS MORNING. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
HARRISVILLE...PINEY WOODS AND MENDENHALL.

LAT...LON 3176 9008 3188 8966 3206 8968 3205 9002
      3196 9016

$$

CRAVEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 8, 9:54 PM CST	Flash Flood Warning	JAN	Kemper	3 hr
Dec 8, 11:57 PM CST	Severe Thunderstorm Warning	JAN	Warren	48 min
Dec 9, 12:35 AM CST	Severe Thunderstorm Warning	JAN	Adams	40 min
Dec 9, 12:40 AM CST	Flash Flood Warning	JAN	Adams	3 hr
Dec 9, 12:49 AM CST	Flash Flood Warning	JAN	Warren	3 hr
Dec 9, 2:06 AM CST	Flash Flood Warning	JAN	Franklin	3 hr
Dec 9, 2:22 AM CST	Flash Flood Warning	JAN	Lincoln	4 hr
Dec 9, 2:27 AM CST	Flash Flood Warning	JAN	Rankin	4 hr
Dec 9, 2:44 AM CST	Flash Flood Warning	JAN	Lowndes, Noxubee, Oktibbeha, Winston	4 hr
Dec 9, 3:29 AM CST	Severe Thunderstorm Warning	JAN	Simpson	46 min
Dec 9, 3:40 AM CST	Flash Flood Warning	JAN	Madison	80 min
Dec 9, 3:45 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Lawrence	45 min
Dec 9, 3:57 AM CST	Severe Thunderstorm Warning	JAN	Smith	33 min
Dec 9, 4:02 AM CST	Tornado Warning	JAN	Smith	28 min
Dec 9, 4:10 AM CST	Flash Flood Warning	JAN	Kemper, Neshoba, Newton	3 hr
Dec 9, 4:25 AM CST	Tornado Warning	JAN	Newton, Scott	50 min
Dec 9, 4:27 AM CST	Severe Thunderstorm Warning	JAN	Jasper	28 min
Dec 9, 4:39 AM CST	Severe Thunderstorm Warning	JAN	Covington	36 min
Dec 9, 4:58 AM CST	Tornado Warning	JAN	Jasper	47 min
Dec 9, 5:05 AM CST	Severe Thunderstorm Warning	JAN	Lauderdale	55 min
Dec 9, 5:19 AM CST	Severe Thunderstorm Warning	JAN	Lincoln	36 min
Dec 9, 5:53 AM CST	Tornado Warning	JAN	Noxubee	22 min
Dec 9, 6:20 AM CST	Severe Thunderstorm Warning	JAN	Jefferson Davis, Marion	40 min
Dec 9, 6:34 AM CST	Tornado Warning	JAN	Covington, Jefferson Davis	26 min

Nearby

Flash Flood Warnings in Mississippi, 2004 Every flash flood warning in 2004

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.