Alert archive / Mississippi / Flash Flood Warnings in 1989

Flash Flood Warning 27, NWS Jackson, MS

July 2, 1989Adams County, Mississippi

NWS Jackson, MS issued this flash flood warning at Jul 2, 1989, 4:48 PM CDT for Adams County, Mississippi. It was in force for 117 min.

The area

The counties it named.

The facts

Issued
Jul 2, 1989, 4:48 PM CDT (21:48 UTC)
Expired
Jul 2, 1989, 6:45 PM CDT
In force
117 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Adams 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

Jackson, MS (KJAN), launched 12:00Z, 9.8 hours before the alert went out and 152 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 12:00Z on 1989-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1206 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 12:00Z on 1989-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 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
1206 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
582 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
20 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.

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

Special weather statement, Jul 2, 1:21 PM CDT, 3 hours 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
120 PM CDT SUN JUL 2 1989

...THUNDERSTORMS CONTINUEING OVER SOUTH HALF OF MISSISSIPPI...

JACKSON RADAR IS CONTINUING TO SHOW RAIN ALONG WITH EMBEDDED THUNDER-
STORMS OVER MOST OF THE SOUTHERN HALF OF MISSISSIPPI.  INCLUDED WITHIN
THIS AREA ARE TWO LINES OF RATHER STRONG THUNDERSTORMS.

THE FIRST LINE OF THUNDERSTORMS STRETCHES FROM NORTH OF VICKSBURG EAST
TO NEAR DEKALB.  INDIVIDUAL THUNDERSTORMS ON THIS LINE ARE MOVING EAST
AT 25 MPH WHILE THE ENTIRE LINE DROPS SLOWLY SOUTH.  THE WESTERN PORTION
OF THIS LINE IS APPROACHING JACKSON AND THE RESERVOIR.

TO THE SOUTH...A SECOND LINE OF THUNDERSTORMS STRETCHES FROM JUST SOUTH
OF MERIDIAN TO NEAR POPLARVILLE.  THIS LINES IS MOVING EAST AT 25 MPH.

ALL OF THESE STORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS...HEAVY
RAIN...AND DANGEROUS LIGHTNING.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 8:46 PM CDTFlash Flood WarningJANWashington119 min
Jul 1, 8:59 PM CDTFlash Flood WarningJANSunflower2 hr
Jul 1, 10:56 PM CDTFlash Flood WarningJANWashington2 hr
Jul 2, 12:43 AM CDTFlash Flood WarningJANHumphreys2 hr
Jul 2, 4:48 PM CDTSevere Thunderstorm WarningJANAdams57 min
Jul 2, 4:53 PM CDTFlash Flood WarningJANAmite, Franklin87 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.