Alert archive / Mississippi / Flash Flood Warnings in 1998

Flash Flood Warning 34, NWS Jackson, MS

July 25, 1998Jefferson Davis County, Lawrence County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 25, 1998, 6:00 PM CDT for Jefferson Davis County, Lawrence 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 counties it named.

The facts

Issued
Jul 25, 1998, 6:00 PM CDT (23:00 UTC)
Expired
Jul 25, 1998, 8:00 PM CDT
In force
2 hr
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Jefferson Davis County, MS, Lawrence County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.0 hours before the alert went out and 85 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 1998-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1403 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, Jackson, MS at 12:00Z on 1998-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
1403 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
823 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
21 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 
TTAA00 KJAN 252259
FFWJAN
MSC065-077-260100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
600 PM CDT SAT JUL 25 1998

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFFERSON DAVIS COUNTY IN SOUTH CENTRAL MISSISSIPPI
  LAWRENCE COUNTY IN SOUTH CENTRAL MISSISSIPPI

* UNTIL 800 PM CDT

* AT 555 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH VERY HEAVY RAIN 10 MILES SOUTH OF MONTICELLO...
  MOVING LITTLE. RADAR HAS INDICATED THAT UP TO TWO AND A HALF
  INCHES OF RAIN HAS FALLEN OVER SOUTHERN JEFFERSON DAVIS COUNTY...
  ALONG HIGHWAY 13. ANOTHER ONE AND A HALF TO TWO INCHES OF RAIN
  WILL FALL ACROSS THESE COUNTIES THROUGH 730 PM. THESE
  ADDITIONAL RAINFALL AMOUNTS WILL CAUSE FLOODING OF CREEKS...
  STREETS AND LOW LYING AREAS.

  DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

75

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 7:32 PM CDTSevere Thunderstorm WarningJANYazoo33 min
Jul 25, 5:26 PM CDTSevere Thunderstorm WarningJANLawrence49 min
Jul 25, 6:17 PM CDTSevere Thunderstorm WarningJANRankin48 min
Jul 25, 6:36 PM CDTSevere Thunderstorm WarningJANHinds, Madison49 min
Jul 25, 6:44 PM CDTSevere Thunderstorm WarningJANCopiah51 min

Nearby

Flash Flood Warnings in Mississippi, 1998Every flash flood warning in 1998

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.