Alert archive / Mississippi / Flash Flood Warnings in 2004

Flash Flood Warning 40, NWS Jackson, MS

May 17, 2004Leflore County, Mississippi

NWS Jackson, MS issued this flash flood warning at May 17, 2004, 6:18 PM CDT for Leflore County, Mississippi. It was in force for 117 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 17, 2004, 6:18 PM CDT (23:18 UTC)
Expired: May 17, 2004, 8:15 PM CDT
In force: 117 min
Issued by: NWS Jackson, MS
Area: Counties, with a storm outline in the text

County Leflore County, MS

The radar

The Jackson/Brandon,MS radar (KDGX), 162 km from the middle of the area, began a volume at 23:19 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

Little Rock, AR (KLZK), launched 12:00Z, 11.3 hours before the alert went out and 128 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: 1318 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 543 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KJAN 172319
FFWJAN
MSC083-180115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
618 PM CDT MON MAY 17 2004

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN LEFLORE COUNTY IN NORTH CENTRAL MISSISSIPPI

* UNTIL 815 PM CDT

* AT 618 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED            
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER MINTER CITY...MOVING  
  NORTH AT 10 MPH.

RADAR ESTIMATED RAINFALL AMOUNTS NEAR 2 INCHES HAS FALLEN OVER THE 
PAST HOUR...MORE THUNDERSTORMS ARE MOVING IN FROM THE SOUTH AND AN 
ADDITIONAL 1 TO 2 INCHES WILL BE POSSIBLE ACROSS NORTHERN LEFLORE 
COUNTY THROUGH 815 PM.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.

LAT...LON 3365 9037 3367 9017 3380 9017 3379 9040

$$

1 follow-up statement

000 
WGUS74 KJAN 180006
FFSJAN
MSC083-180115-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
705 PM CDT MON MAY 17 2004

FLASH FLOOD WARNING HAS BEEN CANCELLED FOR...

NORTHERN LEFLORE COUNTY IN NORTH CENTRAL MISSISSIPPI

THE THUNDERSTORM THAT PROMPTED THE FLASH FLOOD WARNING HAS MOVED OUT 
OF THE COUNTY AND ALL THAT REMAINS IS LIGHT RAIN AND DRIZZLE. THE 
THREAT OF FLASH FLOODING HAS ENDED THUS THE WARNING HAS BEEN 
CANCELLED.

$$

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.