Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 66, NWS Memphis, TN

July 2, 1990Lowndes County, Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at Jul 2, 1990, 2:04 PM CDT for Lowndes County, Mississippi. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Jul 2, 1990, 2:04 PM CDT (19:04 UTC)
Expired
Jul 2, 1990, 2:45 PM CDT
In force
41 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Lowndes 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

Centreville/Bibb, AL (KCKL), launched 12:00Z, 7.1 hours before the alert went out and 132 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, Centreville/Bibb, AL at 12:00Z on 1990-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1129 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, Centreville/Bibb, AL at 12:00Z on 1990-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
1129 J/kg
Mixed-layer CIN
-69 J/kg
Mixed-layer LCL
1374 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
19 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 severe thunderstorm 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, 1:22 PM CDT, 42 minutes before
MSZ004-005-007-261930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUPELO MS
122 PM CDT TUE JUN 26 1990

...SEVERE THUNDERSTORM WATCH NUMBER 582 HAS BEEN ISSUED FOR MOST OF
NORTH MISSISSIPPI UNTIL 800 PM THIS EVENING...

NATIONAL WEATHER SERVICE RADAR HAS INDICATED A RAPID CREATION OF
STRONG THUNDERSTORMS IN NORTHEAST MISSISSIPPI AND NORTHWEST ALABAMA.
THE HEAVIEST ACTIVITY IN MISSISSIPPI IS CURRENTLY IN CENTRAL ITAWAMBA
AND EASTERN CLAY COUNTIES. ALL THESE THUNDERSTORMS ARE MOVING
EXTREMELY SLOWLY TO THE SOUTHEAST AT 5 TO 10 MPH.

THESE THUNDERSTORMS MAY HAVE THE POTIENTAL OF PRODUCING STRONG GUSTY
WINDS...DANGEROUS LIGHTNING...VERY HEAVY RAINS...AND LARGE HAIL.
KEEP YOUR EYES ON THE SKIES AND YOUR EARS ON NOAA WEATHER RADIO.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE COVER IN A STURDY
SHELTER.

NNNN

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 3:01 PM CDTSevere Thunderstorm WarningMEGLowndes44 min
Jul 2, 3:53 PM CDTSevere Thunderstorm WarningMEGOktibbeha52 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1990Every severe thunderstorm warning in 1990

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.