Alert archive / Mississippi / Flash Flood Warnings in 1994

Flash Flood Warning 24, NWS Jackson, MS

September 17, 1994Yazoo County, Mississippi

NWS Jackson, MS issued this flash flood warning at Sep 17, 1994, 1:21 AM CDT for Yazoo County, Mississippi. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Sep 17, 1994, 1:21 AM CDT (06:21 UTC)
Expired
Sep 17, 1994, 3:30 AM CDT
In force
2 hr
Issued by
NWS Jackson, MS
Area
Whole counties

County Yazoo County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.4 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 1994-09-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 629 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 00:00Z on 1994-09-17The 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
629 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
1088 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 170623
FFWJAN
MSC163-170830-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
121 AM CDT SAT SEP 17 1994
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  330 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN CENTRAL MISSISSIPPI
 
   ...YAZOO COUNTY
 
AT 115 AM...A BAND OF HEAVY RAIN WAS MOVING SLOWLY NORTHWARD ACROSS
YAZOO COUNTY...ABOUT 15 MPH. FLOODING IS LIKELY DURING THE NEXT TWO HOUR
 
 
DO NOT DRIVE YOUR CAR INTO AREAS WHERE WATER COVERS THE ROAD.
THE WATER DEPTH MAY BE TOO DEEP TO ALLOW YOU TO CROSS SAFELY.
VEHICLES CAUGHT IN RISING WATER MUST BE ABANDONED QUICKLY.
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Nearby

Flash Flood Warnings in Mississippi, 1994Every flash flood warning in 1994

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.