Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 191, NWS Jackson, MS

July 31, 1990Hinds County, Rankin County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 31, 1990, 4:33 PM CDT for Hinds County, Rankin County, Mississippi. It was in force for 57 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jul 31, 1990, 4:33 PM CDT (21:33 UTC)
Expired
Jul 31, 1990, 5:30 PM CDT
In force
57 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Hinds County, MS, Rankin County, MS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
Jul 31, 5:10 PM CDTThunderstorm Wind 60Hinds, MS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.6 hours before the alert went out and 12 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 1990-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1337 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 1990-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
1337 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1091 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
12 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 31, 2:13 PM CDT, 2 hours 20 minutes before
MSZALL-312015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
212 PM CDT TUE JUL 31 1990

...STRONG THUNDERSTORMS DEVELOPING OVER NORTHWEST MISSISSIPPI...

AT 210 PM CDT...STRONG THUNDERSTORMS HAD DEVELOPED ALONG A WEAK COLD
FRONT ACROSS NORTHWEST MISSISSIPPI.  THE STRONGEST STORMS WERE NEAR
BOYLE...RULEVILLE...WATER VALLEY...AND CALHOUN CITY.  ALL OF THESE
STORMS WERE LIKELY PRODUCING FREQUENT LIGHTNING...PERIODS OF VERY HEAVRAINFALL AND GUSTY WINDS OF 30 TO 40 MILES AN HOUR.

SINCE THE STORMS WERE ONLY MOVING TO THE EAST AT 10 MILES AN
HOUR...SOME LOCAL PONDING OF WATER CAN BE EXPECTED ON STREETS AND LOW
LYING AREAS.  ALSO...LIGHTNING POSES A GREAT DANGER AS JULY AND AUGUST
REPRESENT THE TWO MONTHS WHEN THE MOST LIGHTNING FATALITIES HAVE
OCCURRED IN MISSISSIPPI.

OTHER SCATTERED THUNDERSTORMS WERE ALSO RAPIDLY DEVELOPING ACROS THE
REMAINDER OF MISSISSIPPI AND OVER SECTIONS OF EASTERN LOUISIANA...AND
SOUTHnEAST ARKANSAS.

MOVEMENT WAS EAST AT 10 MILES AN HOUR.
Special weather statement, Jul 31, 2:40 PM CDT, 1 hour 53 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-312030-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
 240 PM CDT TUE JUL 31 1990

 ...STRONG THUNDERSTORMS CONTINUE TO DEVELOP OVER MISSISSIPPI...

AT 230 PM CDT...JACKSON RADAR INDICATED A LINE OF INTENSE THUNDERSTORMS
STRETCHING FROM THE GRENADA RESERVOIR WEST TO MOUND BAYOU...AND SOUTH-
WEST TO HAMBURG ARKANSAS.  OTHER INTENSE THUNDERSTORMS HAD JUST RECENTLY
DEVELOPED OVER CENTRAL MISSISSIPPI...ESPECIALLY OVER JACKSON...MT. OLIVE
...AND WEST OF HAZLEHURST.  A THUNDERSTORM OVER THE JACKSON INTERNATION-
AL AIRPORT PRODUCED AT WIND GUST OF 45 MILES AN HOUR AROUND 230 PM.

OTHER SHOWERS AND THUNDERSTORMS CONTINUED TO BE SCATTERED ACROSS MOST
OF MISSISSIPPI...EXTENDING INTO ADJACENT STATES.

MOVEMENT WAS EAST AT 10 MILES AN HOUR.


Special weather statement, Jul 31, 3:06 PM CDT, 1 hour 27 minutes before
MSZALL-312115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
306 PM CDT TUE JUL 31 1990

...STRONG THUNDERSTORMS CONTINUE TO RUMBLE ACROSS MISSISSIPPI...

AT 300 PM CDT...CLUSTERS OF STRONG THUNDERSTORMS CONTINUE TO BE
DETECTED BY JACKSON RADAR OVER NORTHWEST MISSISSIPPI FROM THE GRENADA
RESERVOIR WEST TO GREENVILLE.

OTHER VERY INTENSE THUNDERSTORMS CONTINUED OVER CENTRAL MISSISSIPPI
...ESPECIALLY BETWEEN DLO AND RALEIGH.

THESE THUNDERSTORMS THIS AFTERNOON HAVE CONTINUED TO BE QUITE INTENSE
AT TIMES...PRODUCING FREQUENT FLASHES OF CLOUD-TO-GROUND
LIGHTNING...HEAVY DOWNPOURS...GUSTY WINDS OF 30 TO 45 MILES AN
HOUR...AND EVEN SOME PEA SIZE HAIL.

AN AREA OF RAIN HAD DEVELOPED OVER NORTHERN MISSISSIPPI NEAR THE WEAK
COLD FRONT...WHILE SHOWERS AND THUNDERSTORMS REMAINED SCATTERED OVER
THE REST OF MISSISSIPPI.

MOVEMENT WAS EAST OVER NORTHERN MISSISSIPPI...WHILE THE STORMS OVER
THE SOUTHERN HALF OF THE S6TATE WERE SHOWING LITTLE MOVEMENT.
Special weather statement, Jul 31, 3:29 PM CDT, 1 hour 4 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013-
ALZ004-008-013-016-312130-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
 330 PM CDT TUE JUL 31 1990

 ...RAIN AND EMBEDDED THUNDERSTORMS NORTH...SCATTERED THUNDERSTORMS
    SOUTH...

AT 325 PM CDT...THE GREATEST CONCENTRATION OF RAIN AND EMBEDDED THUNDER-
STORMS CONTINUED OVER NORTH MISSISSIPPI...ALONG A WEAK COLD FRONT...FROM
NORTH OF GREENVILLE EAST TO ABOUT TUPELO.  THE STRONGEST STORMS TO THE
NORTH WERE NEAR GREENVILLE...AND NEAR EUDORA ARKANSAS.

OVER CENTRAL AND SOUTH MISSISSIPPI...SCATTERED SHOWERS AND THUNDER-
STORMS CONTINUED TO BE DETECTED.  THE STRONGEST STORM WAS NOTED
NORTHEAST OF HERMANVILLE.

SATELLITE PICTURES INDICATED THAT THE SEA BREEZE HAD MOVED INLAND
AND MOST OF THE IMMEDIATE MISSISSIPPI COAST WAS RAINFREE.
 <
MOVEMENT OVER NORTH MISSISSIPPI WAS EAST AT 10 MILES AN HOUR...WHILE
LITTLE MOaVEMENT WAS NOTED OVER SOUTH MISSISSIPPI.
Special weather statement, Jul 31, 4:17 PM CDT, 16 minutes before
MSZALL-312215-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
415 PM CDT TUE JUL 31 1990

...STRONG THUNDERSTORMS IN MANY AREAS OF MISSISSIPPI...

AT 400 PM CDT...CLUSTERS OF VERY INTENSE THUNDERSTORMS CONTINUE TO BE
DETECTED BY JACKSON RADAR OVER NORTHERN MISSISSIPPI FROM ACKERMAN TO
LAKE PROVIDENCE LOUISIANA.

OTHER STRONG THUNDERSTORMS CONTINUED OVER CENTRAL AND SOUTH MISSISSIPPI
WITH THE HEAVIEST RAIN INDICATED BETWEEN MONTICELLO AND COLUMBIA AND
NORTHWEST OF MEADVILLE.

THESE THUNDERSTORMS THIS AFTERNOON HAVE CONTINUED TO BE QUITE INTENSE
AT TIMES...PRODUCING FREQUENT FLASHES OF CLOUD-TO-GROUND
LIGHTNING...HEAVY DOWNPOURS...GUSTY WINDS OF 30 TO 45 MILES AN
HOUR...AND EVEN SOME PEA SIZE HAIL.
MOVEMENT OF STORMS WAS EAST OVER NORTHERN MISSISSIPPI...WHILE THE STORMS
OVER THE SOUTHERN HALF OF THE STATE WERE SHOWING LITTLE MOVEMENT.
Local storm report, Jul 31, 4:22 PM CDT, 11 minutes before
STORM REPORTS
NATIONAL WEATHER SERVICE JACKSON MS
420 PM CDT TUE JUL 31 1990

245 PM   PEA SIZE HAIL AT RANKIN GENERAL HOSPITAL IN BRANDON (RANKIN
         CTY)...REPORTED BY JACKSON HINDS EOC.

415 PM   BOLIVAR CTY EOC REPORTED THAT A MAN HAD BEEN KILLED
         BY LIGHTNING IN WEBB (TALLAHATCHIE CTY) DURING THE PAST HOUR.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 6:12 PM CDTSevere Thunderstorm WarningJANJones48 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.