Alert archive / Mississippi / Flash Flood Warnings in 1999

Flash Flood Warning 32, NWS Jackson, MS

January 30, 1999Forrest County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jan 30, 1999, 1:50 AM CST for Forrest 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
Jan 30, 1999, 1:50 AM CST (07:50 UTC)
Expired
Jan 30, 1999, 4:00 AM CST
In force
2 hr
Issued by
NWS Jackson, MS
Area
Whole counties

County Forrest County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 7.8 hours before the alert went out and 113 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, Slidell Radar S, LA at 00:00Z on 1999-01-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 774 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, Slidell Radar S, LA at 00:00Z on 1999-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 216 square meters per square second.19395878Sfc1 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
774 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
547 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
216 m²/s²
0-3 km storm-relative helicity
295 m²/s²
Significant tornado parameter
0.8
Supercell composite
4.1

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.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jan 29, 10:31 PM CST, 3 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON MS
1031 PM CST FRI JAN 29 1999

TIME(CST)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....PARISH/COUNTY LOCATION....

0950 PM                              MS   WIND DAMAGE
01/29/99   LAMAR                          CIVIL DEFENSE REPORTS
                                          NUMEROUS TREES DOWN ACROSS
                                          THE COUNTY.

1012 PM    HATTIESBURG               MS   .75 INCH HAIL
01/29/99   FORREST                        EOC REPORTS DIME SIZE HAIL
                                          AT CLOVERLEAF MALL.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 29, 6:50 PM CSTSevere Thunderstorm WarningJANLamar50 min
Jan 29, 7:38 PM CSTSevere Thunderstorm WarningJANForrest47 min
Jan 29, 8:23 PM CSTSevere Thunderstorm WarningJANMarion52 min
Jan 29, 9:15 PM CSTSevere Thunderstorm WarningJANLamar60 min
Jan 29, 9:29 PM CSTFlash Flood WarningJANAdams, Jefferson5 hr
Jan 29, 9:44 PM CSTTornado WarningJANLamar31 min
Jan 29, 9:58 PM CSTTornado WarningJANForrest47 min
Jan 29, 10:42 PM CSTFlash Flood WarningJANClarke2 hr
Jan 29, 10:42 PM CSTFlash Flood WarningJANJones2 hr
Jan 29, 11:00 PM CSTFlash Flood WarningJANForrest, Lamar, Marion3 hr
Jan 30, 1:50 AM CSTFlash Flood WarningJANLamar, Marion2 hr
Jan 30, 8:47 AM CSTFlash Flood WarningJANClaiborne, Copiah, Hinds, Jefferson2 hr
Jan 30, 8:47 AM CSTFlash Flood WarningJANMadison, Rankin2 hr
Jan 30, 10:21 AM CSTSevere Thunderstorm WarningJANLincoln29 min
Jan 30, 10:44 AM CSTSevere Thunderstorm WarningJANLawrence, Simpson46 min
Jan 30, 11:09 AM CSTFlash Flood WarningJANLawrence, Rankin, Simpson, Smith2 hr
Jan 30, 11:09 AM CSTFlash Flood WarningJANNeshoba, Newton, Scott2 hr
Jan 30, 12:17 PM CSTFlash Flood WarningJANClarke, Jasper, Kemper, Lauderdale3 hr
Jan 30, 1:15 PM CSTSevere Thunderstorm WarningJANSimpson, Smith30 min
Jan 30, 4:41 PM CSTSevere Thunderstorm WarningJANJones49 min
Jan 30, 5:00 PM CSTSevere Thunderstorm WarningJANLauderdale, Newton50 min
Jan 30, 5:09 PM CSTSevere Thunderstorm WarningJANClarke, Jasper66 min
Jan 29, 7:45 PM CSTFlash Flood WarningJANMorehouse, Richland, West Carroll28 hr
Jan 29, 7:45 PM CSTFlash Flood WarningJANEast Carroll, Madison28 hr
Jan 29, 11:57 PM CSTFlash Flood WarningJANEast Carroll, Madison, Richland4 hr
Jan 29, 11:57 PM CSTFlash Flood WarningJANMorehouse4 hr
Jan 29, 11:57 PM CSTFlash Flood WarningJANWest Carroll4 hr

Nearby

Flash Flood Warnings in Mississippi, 1999Every flash flood warning in 1999

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.