Alert archive / Mississippi / Flash Flood Warnings in 1994

Flash Flood Warning 21, NWS Jackson, MS

July 22, 1994Washington County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 22, 1994, 1:53 AM CDT for Washington County, Mississippi. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jul 22, 1994, 1:53 AM CDT (06:53 UTC)
Expired
Jul 22, 1994, 4:00 AM CDT
In force
2 hr
Issued by
NWS Jackson, MS
Area
Whole counties

County Washington County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 6.9 hours before the alert went out and 134 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 1994-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1061 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 1994-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
1061 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1355 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
33 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 220659
FFWJAN
MSC151-220900-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON MS
153 AM CDT FRI JUL 22 1994
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  400 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN NORTHWEST MISSISSIPPI
 
   ...SOUTHERN WASHINGTON COUNTY
 
THE WEATHER RADAR IN JACKSON INDICATES THAT THUNDERSTORMS MOVING ACROSS
WASHINGTON COUNTY DURING THE PAST SEVERAL HOURS HAVE DUMPED RAINFALL
AMOUNTS OF TWO TO THREE INCHES OVER THE SOUTHERN HALF OF THE COUNTY.
THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS THE AREA FOR THE NEXT HOUR OR
TWO...AND ADDITIONAL RAINFALL OF TWO OR MORE INCHES IS POSSIBLE.
FLOODING OF SOME STREETS IN HOLLADALE HAS BEEN REPORT DURING THE PAST
HOUR. ADDITIONAL FLOODING IS LIKELY DURING THE NEXT SEVERAL HOURS...
MAINLY IN LOW LYING AREAS AND ON SMALL STREAMS AND TRIBUTARIES.
 
AT NIGHT BE ESPECIALLY CAUTIOUS WHEN IT IS 4HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE SWIFTLY TO ESCAPE FLOOD WATERS.
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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.