Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 48, NWS Jackson, MS

February 15, 1990Hinds County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 15, 1990, 4:51 PM CST for Hinds County, Mississippi. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
Feb 15, 1990, 4:51 PM CST (22:51 UTC)
Expired
Feb 15, 1990, 5:30 PM CST
In force
39 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Hinds 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, 10.9 hours before the alert went out and 35 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 1990-02-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1189 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 1990-02-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.193958Sfc1 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
1189 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
178 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 152251
SVRJAN
MSC049-152330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
451 PM CST THU FEB 15 1990
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN CENTRAL MISSISSIPPI
          ...HINDS
 
AT 450 PM CST...A SEVERE THUNDERSTORM WAS LOCATED OVER WEST JACKSON.
THIS STORM HAS REPORTEDLY ALREADY PRODUCED UP TO GOLFBALL SIZED HAIL.
MOVEMENT WAS NORTHEAST AT 45 MILES AN HOUR.
 
 
A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
<

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, Feb 15, 2:16 PM CST, 2 hours 35 minutes before
MSZALL-152200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
215 PM CST THU FEB 15 1990

...TORNADO WATCH NUMBER 36 REMAINS IN EFFECT FOR PORTIONS OF WESTERN
AND NORTHWESTERN MISSISSIPPI UNTIL 6:00PM THIS AFTERNOON AND EVENING...

...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE REMAINDER OF THIS
AFTERNOON AND TONIGHT FOR ALL OF MISSISSIPPI EXCEPT THE SOUTHEAST...

AT 210 PM CST THUNDERSTORM WERE BEGINING TO DEVELOPE OVER SOUTHEAST
ARKANSAS. THESE STORM WILL BE MOVING TOWARD MISSISSIPPI DURING THE
NEXT HOUR. COUNTIES IN NORTHWEST MISSISSIPPPI...ESPECIALLY THE ONES
ALONG THE MISSISSIPPI RIVER...NEED TO BEGIN PREPARING FOR THE APPROACH
OF THESE STORMS.

THESE STORMS WILL HAVE THE POTENTIAL TO PRODUCE TORNADOES AND SEVERE
THUNDERSTORMS IN A SHORT PERIOD OF TIME.
Special weather statement, Feb 15, 2:33 PM CST, 2 hours 18 minutes before
MSZALL-152200-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
230 PM CST THU FEB 15 1990

...TORNADO WATCH NUMBER 35 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTHERN MISSISSIPPI UNTIL 5:00PM THIS AFTERNOON AND EVENING...

...TORNADO WATCH NUMBER 36 REMAINS IN EFFECT FOR PORTIONS OF WESTERN
AND NORTHWESTERN MISSISSIPPI UNTIL 6:00PM THIS AFTERNOON AND EVENING...

...FLASH FLOOD WATCH FOR ALL EXCEPT SOUTHEAST MISSSISSIPPI FOR THIS
AFTERNOON AND TONIGHT..

AT 230 PM CST RADAR SHOWED THE STRONGER THUNDERSTORMS 10 MILES WEST OF
MT OLIVE...10 MILES EAST OF RALEIGH MISSISSIPPI...AND FROM BROOKHAVEN TO
MONTICELLO MISSISSIPPI.

ALL THESE THUNDERSTORMS COULD (POSSIBLE PRODUCE A TORNADO AS THEY MOVE TO
THE NORTHEAST AT 45 MPH.
Local storm report, Feb 15, 2:46 PM CST, 2 hours 5 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
244 PM CST THU FEB 15 1990

220 PM CST...LIVINGSTON P.D. REPORTS TORNADO 1 MILE NORTH OF
             LIVINGSTON ALABAMA IN SUMTER COUNTY.
Special weather statement, Feb 15, 3:39 PM CST, 1 hour 12 minutes before
MSZALL-152300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
335 PM CST THU FEB 15 1990

...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTHERN MISSISSIPPI UNTIL 10:00PM THIS AFTERNOON AND EVENING...

...TORNADO WATCH NUMBER 36 REMAINS IN EFFECT FOR PORTIONS OF WESTERN
AND NORTHWESTERN MISSISSIPPI UNTIL 6:00PM THIS AFTERNOON AND EVENING...

...FLASH FLOOD WARNING FOR SEVERAL COUNTIES IN CENTRAL MISSISSIPPI TIL
545 PM...

AT 330 PM CST RADAR SHOWED STRONG THUNDERSTORMS WITH HEAVY RAIN OVER
COVINGTON..SMITH..AND SIMPSON COUNTIES. SEVERAL REPORTS OF FLASH FLOODING
HAVE BEEN RECEIVED FROM THESE COUNTIES. SOME EVACUATION OF HOMES WAS IN
PROGRESS IN MAGEE MISSISSIPPI AND A TRAILER HAD BEEN FLOODED IN RALEIGH.

THESE THUNDERSTORMS CONTINUE TO PRODUCE HEAVY RAIN AS THEY MOVE TO THE
NORTHEAST AT 40 MPH.
Special weather statement, Feb 15, 4:14 PM CST, 37 minutes before
MSZALL-152300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
410 PM CST THU FEB 15 1990

...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTHERN MISSISSIPPI UNTIL 1000 PM...

...TORNADO WATCH NUMBER 35 REMAINS IN EFFECT FOR PORTIONS OF WESTERN
AND NORTHWESTERN MISSISSIPPI UNTIL 600 PM...

AT 400 PM CST...A SOLID AREA OF RAIN AND EMBEDDED STRONG THUNDERSTORMS
ACROSS SOUTHWEST AND EAST CENTRAL MISSISSIPPI.  THE HEAVIEST ACTIVITY
WITHIN THIS BAND IS INDICATED BETWEEN MERIDIAN AND BAY SPRINGS.  THE
STORMS ARE MOVING NORTHEAST...BUT THE AREA HAS SHOWN LITTLE MOVEMENT.
THE STORMS ARE PRODUCING HEAVY RAIN AND MAY CAUSE FLASH FLOODING.

A LINE OF STRONG THUNDERSTORMS WAS INTENSIFYING OVER EASTERN ARKANSAS
AND WILL BE MOVING INTO NORTHWEST MISSISSIPPI SHORTLY.  STRONG GUSTY
WINDS...HAIL...AND HEAVY RAINS ARE POSSIBLE ALONG THIS LINE.  THE LINE
IS MOVING EAST AROUND 20 MPH.  THIS LINE IS CONTINUING TO DEVELOP SOUTH
AND STRENGTHENING.  PEOPLE SHOULD BE ALERT SHOULD A WARNING BECOME
NECESSARY.
Special weather statement, Feb 15, 4:48 PM CST, 3 minutes before
MSZALL-152300-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
440 PM CST THU FEB 15 1990

...TORNADO WATCH NUMBER 39 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL
AND SOUTHERN MISSISSIPPI UNTIL 1000 PM...

...TORNADO WATCH NUMBER 35 REMAINS IN EFFECT FOR PORTIONS OF WESTERN
AND NORTHWESTERN MISSISSIPPI UNTIL 600 PM...

AT 435 PM CST...A SOLID AREA OF RAIN AND EMBEDDED STRONG THUNDERSTORMS
ACROSS SOUTHWEST AND CENTRAL MISSISSIPPI.  THE HEAVIEST STORM WAS
BETWEEN NATCHEZ AND FAYETTE.  IT HAD PRODUCED A WIND GUST OF 75 MPH
AND DAMAGED THE ROOF OF A STORAGE BUILDING.  ANOTHER CLUSTER OF STRONG
THUNDERSTORMS WAS INDICATED BETWEEN RAYMOND AND JACKSON.  THE STORMS
WERE MOVING NORTHEAST AT 45 MPH WHILE THE RAIN AREA WAS DRIFTING NORTH.

A LINE OF STRONG THUNDERSTORMS HAD MOVED INTO NORTHWEST MISSISSIPPI.
THE STRONGEST STORM ALONG THE LINE IN MISSISSIPPI WAS NEAR CLEVELAND.
IT HAD PRODUCED MARBLE SIZE HAIL EARLIER.  THE LINE OF STORMS IS MOVING
EAST AROUND 20 MPH.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 15, 9:27 AM CSTSevere Thunderstorm WarningJANNeshoba33 min
Feb 15, 10:11 AM CSTSevere Thunderstorm WarningJANNewton34 min
Feb 15, 10:25 AM CSTSevere Thunderstorm WarningJANJasper35 min
Feb 15, 10:28 AM CSTSevere Thunderstorm WarningJANLauderdale47 min
Feb 15, 10:42 AM CSTSevere Thunderstorm WarningJANKemper33 min
Feb 15, 10:42 AM CSTSevere Thunderstorm WarningJANHinds, Warren48 min
Feb 15, 11:03 AM CSTSevere Thunderstorm WarningJANJasper27 min
Feb 15, 11:15 AM CSTSevere Thunderstorm WarningJANClarke, Lauderdale60 min
Feb 15, 12:21 PM CSTFlash Flood WarningJANLauderdale2 hr
Feb 15, 12:27 PM CSTSevere Thunderstorm WarningJANJasper33 min
Feb 15, 12:40 PM CSTSevere Thunderstorm WarningJANNewton35 min
Feb 15, 12:45 PM CSTSevere Thunderstorm WarningJANSimpson, Smith45 min
Feb 15, 12:52 PM CSTTornado WarningJANLauderdale38 min
Feb 15, 12:55 PM CSTTornado WarningJANAmite50 min
Feb 15, 12:59 PM CSTTornado WarningJANSimpson, Smith31 min
Feb 15, 1:11 PM CSTTornado WarningJANJefferson Davis34 min
Feb 15, 1:21 PM CSTTornado WarningJANScott24 min
Feb 15, 1:24 PM CSTTornado WarningJANJasper, Newton51 min
Feb 15, 1:28 PM CSTTornado WarningJANLauderdale32 min
Feb 15, 1:33 PM CSTTornado WarningJANCovington, Smith27 min
Feb 15, 1:42 PM CSTTornado WarningJANKemper48 min
Feb 15, 1:47 PM CSTTornado WarningJANPike18 min
Feb 15, 1:59 PM CSTTornado WarningJANSmith31 min
Feb 15, 2:01 PM CSTTornado WarningJANLauderdale44 min
Feb 15, 2:05 PM CSTTornado WarningJANLawrence, Lincoln25 min
Feb 15, 2:26 PM CSTTornado WarningJANJasper49 min
Feb 15, 2:37 PM CSTSevere Thunderstorm WarningJANSmith38 min
Feb 15, 2:37 PM CSTSevere Thunderstorm WarningJANCovington23 min
Feb 15, 2:45 PM CSTFlash Flood WarningJANSmith3 hr
Feb 15, 2:45 PM CSTFlash Flood WarningJANCovington, Jefferson Davis, Lawrence, Simpson3 hr
Feb 15, 2:49 PM CSTFlash Flood WarningJANLauderdale6 hr
Feb 15, 2:51 PM CSTTornado WarningJANLauderdale54 min
Feb 15, 3:41 PM CSTTornado WarningJANJasper49 min
Feb 15, 3:59 PM CSTSevere Thunderstorm WarningJANLauderdale46 min
Feb 15, 4:16 PM CSTSevere Thunderstorm WarningJANAdams, Jefferson29 min
Feb 15, 4:29 PM CSTSevere Thunderstorm WarningJANBolivar31 min
Feb 15, 5:03 PM CSTFlash Flood WarningJANJasper6 hr
Feb 15, 5:48 PM CSTSevere Thunderstorm WarningJANWashington27 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.