Alert archive / Mississippi / Flash Flood Warnings in 1999

Flash Flood Warning 41, NWS Jackson, MS

March 2, 1999Yazoo County, Mississippi

NWS Jackson, MS issued this flash flood warning at Mar 2, 1999, 8:26 PM CST for Yazoo County, Mississippi. It was in force for 94 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 2, 1999, 8:26 PM CST (02:26 UTC)
Expired
Mar 2, 1999, 10:00 PM CST
In force
94 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Yazoo County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 2.4 hours before the alert went out and 59 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 00:00Z on 1999-03-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 119 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 00:00Z on 1999-03-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 square meters per square second.193958Sfc1 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
119 J/kg
Mixed-layer CIN
-151 J/kg
Mixed-layer LCL
1658 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
267 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 030226
FFWJAN
MSC163-030400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
826 PM CST TUE MAR 2 1999

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  YAZOO COUNTY IN CENTRAL MISSISSIPPI

* UNTIL 1000 PM CST

* AT 825 NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN MOVING SLOWLY SOUTHEAST ACROSS
  NORTHERN YAZOO COUNTY. THESE STORMS WILL PRODUCE TORRENTIAL
  RAINFALL OF 2 TO 3 INCHES THROUGH 10 PM.

*

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGER OF FLOODING.

64

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 6:37 PM CSTSevere Thunderstorm WarningJANHumphreys, Yazoo48 min
Mar 2, 7:26 PM CSTSevere Thunderstorm WarningJANKemper49 min
Mar 2, 7:45 PM CSTSevere Thunderstorm WarningJANLauderdale50 min
Mar 2, 8:02 PM CSTSevere Thunderstorm WarningJANAdams, Jefferson48 min
Mar 2, 8:02 PM CSTSevere Thunderstorm WarningJANClaiborne48 min
Mar 2, 8:16 PM CSTSevere Thunderstorm WarningJANAttala49 min
Mar 2, 8:18 PM CSTSevere Thunderstorm WarningJANFranklin47 min
Mar 2, 8:20 PM CSTSevere Thunderstorm WarningJANWarren50 min
Mar 2, 8:32 PM CSTSevere Thunderstorm WarningJANCopiah, Lincoln63 min
Mar 2, 8:32 PM CSTSevere Thunderstorm WarningJANHinds63 min
Mar 2, 8:38 PM CSTSevere Thunderstorm WarningJANMadison, Yazoo47 min
Mar 2, 8:54 PM CSTTornado WarningJANHinds36 min
Mar 2, 9:05 PM CSTSevere Thunderstorm WarningJANRankin, Simpson65 min
Mar 2, 9:05 PM CSTSevere Thunderstorm WarningJANLawrence65 min
Mar 2, 9:24 PM CSTSevere Thunderstorm WarningJANMadison16 min
Mar 2, 9:32 PM CSTSevere Thunderstorm WarningJANJefferson Davis, Marion63 min
Mar 2, 9:40 PM CSTSevere Thunderstorm WarningJANScott, Smith65 min
Mar 2, 9:40 PM CSTSevere Thunderstorm WarningJANLeake65 min
Mar 2, 9:51 PM CSTSevere Thunderstorm WarningJANCovington49 min
Mar 2, 9:58 PM CSTSevere Thunderstorm WarningJANLamar47 min
Mar 2, 10:04 PM CSTSevere Thunderstorm WarningJANNeshoba, Newton66 min
Mar 2, 10:04 PM CSTSevere Thunderstorm WarningJANForrest, Jones66 min
Mar 2, 10:04 PM CSTSevere Thunderstorm WarningJANJasper66 min
Mar 2, 10:31 PM CSTSevere Thunderstorm WarningJANClarke, Lauderdale49 min

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.