Alert archive / Mississippi / Flash Flood Warnings in 1989

Flash Flood Warning 20, NWS Jackson, MS

June 28, 1989Amite County, Wilkinson County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jun 28, 1989, 7:33 AM CDT for Amite County, Wilkinson County, Mississippi. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 28, 1989, 7:33 AM CDT (12:33 UTC)
Expired
Jun 28, 1989, 10:30 AM CDT
In force
3 hr
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Amite County, MS, Wilkinson County, MS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.6 hours before the alert went out and 236 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, Lake Charles Mun, LA at 12:00Z on 1989-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 229 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, Lake Charles Mun, LA at 12:00Z on 1989-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 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
229 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
607 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
-64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 10:29 AM CDTSevere Thunderstorm WarningJANFranklin31 min
Jun 28, 12:24 PM CDTSevere Thunderstorm WarningJANCopiah, Lincoln51 min
Jun 28, 3:42 PM CDTSevere Thunderstorm WarningJANKemper48 min
Jun 28, 3:58 PM CDTSevere Thunderstorm WarningJANSharkey32 min
Jun 28, 4:02 PM CDTSevere Thunderstorm WarningJANMadison28 min
Jun 28, 4:37 PM CDTSevere Thunderstorm WarningJANSharkey38 min
Jun 28, 1:40 PM CDTSevere Thunderstorm WarningJANChoctaw35 min

Nearby

Flash Flood Warnings in Mississippi, 1989Every flash flood warning in 1989

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.