Alert archive / Mississippi / Flash Flood Warnings in 2001

Flash Flood Warning 80, NWS Jackson, MS

September 3, 2001Jasper County, Simpson County, Smith County, Mississippi

NWS Jackson, MS issued this flash flood warning at Sep 3, 2001, 10:39 AM CDT for Jasper County, Simpson County, Smith County, Mississippi. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Sep 3, 2001, 10:39 AM CDT (15:39 UTC)
Expired
Sep 3, 2001, 12:45 PM CDT
In force
2 hr
Issued by
NWS Jackson, MS
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Jasper County, MS, Simpson County, MS, Smith County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 3.7 hours before the alert went out and 84 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, Jackson, MS at 12:00Z on 2001-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 782 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2001-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -38 square meters per square second.1939Sfc1 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
782 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
541 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-38 m²/s²
0-3 km storm-relative helicity
-8 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 031542
FFWJAN
MSC061-127-129-031745-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1039 AM CDT MON SEP 3 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SMITH COUNTY IN CENTRAL MISSISSIPPI
  SIMPSON COUNTY IN CENTRAL MISSISSIPPI
  JASPER COUNTY IN EAST CENTRAL MISSISSIPPI

* UNTIL 1245 PM CDT

* AT 1039 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN OVER TAYLORSVILLE
  ...MOVING EAST AT 20 MPH.

RADAR ESTIMATES THAT 2 TO 3 INCHES HAVE RAIN HAS FALLEN SINCE 9 30 AM 
AND AN ADDITIONAL 1 TO 2 INCHES CAN BE EXPECTED. 

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.

MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.

LAT...LON 3201 8890 3202 8935 3200 8987 3179 8984
          3179 8944 3182 8892

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 8:15 PM CDTFlash Flood WarningJANMadison3 hr
Sep 3, 4:30 AM CDTFlash Flood WarningJANCovington, Jefferson Davis3 hr
Sep 3, 5:12 AM CDTFlash Flood WarningJANClarke, Jasper4 hr
Sep 3, 5:30 AM CDTFlash Flood WarningJANMadison3 hr
Sep 3, 6:07 AM CDTFlash Flood WarningJANAdams, Franklin3 hr
Sep 3, 7:25 AM CDTFlash Flood WarningJANCovington, Jefferson Davis, Lawrence3 hr
Sep 3, 8:50 AM CDTFlash Flood WarningJANSimpson115 min
Sep 3, 9:00 AM CDTFlash Flood WarningJANLincoln2 hr
Sep 3, 9:27 AM CDTFlash Flood WarningJANRankin2 hr
Sep 3, 10:25 AM CDTFlash Flood WarningJANCovington, Jefferson Davis, Lawrence2 hr
Sep 3, 10:35 AM CDTFlash Flood WarningJANHinds115 min
Sep 3, 10:50 AM CDTFlash Flood WarningJANLincoln115 min
Sep 3, 1:14 PM CDTFlash Flood WarningJANHinds, Rankin2 hr
Sep 3, 1:31 PM CDTFlash Flood WarningJANClaiborne119 min
Sep 3, 5:27 PM CDTFlash Flood WarningJANCovington, Jefferson Davis2 hr

Nearby

Flash Flood Warnings in Mississippi, 2001Every flash flood warning in 2001

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.