Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 72, NWS Jackson, MS

March 15, 1990Yalobusha County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 15, 1990, 12:55 AM CST for Yalobusha County, Mississippi. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Mar 15, 1990, 12:55 AM CST (06:55 UTC)
Expired
Mar 15, 1990, 1:30 AM CST
In force
35 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Yalobusha 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

Little Rock, AR (KLZK), launched 00:00Z, 6.9 hours before the alert went out and 92 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, Little Rock, AR at 00:00Z on 1990-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Little Rock, AR at 00:00Z on 1990-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3556 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
375 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 150656 RRA
SVRJAN
MSC161-150730-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1255 AM CST THU MAR 15 1990
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  130 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL MISSISSIPPI
 
   ...EASTERN YALOBUSHA COUNTY
 
AT 1255 AM CST...A POSSIBLE SEVERE THUNDERSTORM WAS INDICATED NEAR
WATER VALLEY. THIS STORM WAS MOVING TO THE NORTHEAST AT 40 MILES AN
HOUR. THIS STORM IS CAPABLE OF PRODUCING WIND DAMAGE.
 
 
A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAI{N
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, Mar 14, 7:36 PM CST, 5 hours 19 minutes before
MSZALL-150300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
735 PM CST WED MAR 14 1990

...VERY DANGEROUS WEATHER SITUATION APPROACHES...

A DEEP LOW PRESSURE CENTER BETWEEN FAYETTEVILLE ARKANSAS...AND
SPRINGFIELD MISSOURI...CONTINUES TO MOVE THUNDERSTORMS TOWARD OUR
DELTA COUNTIES.  THIS SYSTEM HAS THE POTENTIAL TO PRODUCE A SEVERE
WEATHER OUTBREAK...LATER TONIGHT.  A TORNADO WATCH CONTINUES IN EFFECT
FOR MOST OF ARKANSAS AND LOUISIANA AT THIS TIME...AND WILL LIKELY BE
EXTENDED EAST LATER THIS EVENING.  A COLD FRONT EXTENDED FROM THE LOW
PRESSURE AREA IN NORTWEST ARKANSAS...AND SOUTHWEST MISSOURI...AND
EXTENDED SOUTH INTO EXTREME EASTERN TEXAS.

STRONG SOUTHERLY WINDS AHEAD OF THE FRONT ARE PUMPING VERY MOIST
AND UNSTABLE AIR FROM THE GULF OVER MISSISSIPPI.  GUSTY WINDS BETWEEN
40 AND 50 MILES AN HOUR HAVE BEEN REPORTED ALONG AND EAST OF THE FRONT
AT SOME LOCATIONS IN WEST LOUISIANA.
SOME DELTA COUNTIES COULD GET STRONG THUNDERSTORMS BETWEEN 930 AND 10
PM THIS EVENING.

THE GREATEST THREAT OF SEVERE WEATHER SHOULD BE IN THE NORTH AND
CENTRAL COUNTIES...HOWEVER DEVELOPING THUNDERSTORMS WELL TO OUR
SOUTHWEST IN LOUISIANA MAY MOVE INTO THE SOUTHERN COUTIES LATER
TONIGHT.
Special weather statement, Mar 14, 9:13 PM CST, 3 hours 42 minutes before
MSZALL-150305-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
905 PM CST WED MAR 14 1990

...TORNADO WATCH HAS BEEN ISSUED FOR MOST OF MISSISSIPPI...

A DEEP LOW PRESSURE CENTER BETWEEN HARRISON, AR AND SPRINGFIELD, MO
CONTINUED TO STRENGTHEN AND WILL SPREAD THUNDERSTORMS TOWARD THE STATE.
A TORNADO WATCH IS IN EFFECT FOR MOST OF THE STATE EXCEPT THE EXTREME
SOUTHEAST COUNTIES FROM 930PM UNTIL 3AM. AT 900PM...THE LEADING EDGE
OF THE FIRST BAND OF THUNDERSTORMS STRETCHED FROM DUMAS, AR TO
MONROE AND ALEXANDRIA, LA AND FARTHER SOUTH. THIS LINE CONTAINED VERY
STRONG AND POSSIBLY SEVERE THUNDERSTORMS NEAR MONROE AS THE ENTIRE LINE
MOVED EAST AT 25 MILES AN HOUR.

STRONG SOUTHERLY WINDS AHEAD OF THE FRONT WERE GUSTING BETWEEN 40
AND 45 MILES AN HOUR OVER WESTERN MISSISSIPPI AHEAD OF THE STORMS.
CURRENT INDICATIONS ARE THAT THIS LINE WILL CONTINUE TO INTENSIFY AS
IT CROSSES THE MISSISSIPPI RIVER FROM BOLIVAR COUNTY SOUTHWARD BETWEEN
10 AND 1030PM. SOME WARNINGS WILL BE LIKELY AS THE STORMS CROSS THE
RIVER IN THE NEXT FEW HOURS.

STAY TUNED TO LOCAL MEDIA AND NOAA WEATHER RADIO FOR THE LATEST
INFORMATION AND PLEASE TAKE PROTECTIVE ACTIONS IF WARNINGS &ARE
ISSUED FOR YOUR AREA. THIS SITUATION IS POTENTIALLY VERY DEADLY
AS STRONG TORNADOES ARE POSSIBLE.
Special weather statement, Mar 14, 9:38 PM CST, 3 hours 17 minutes before
MSZALL-150500-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
935 PM CST WED MAR 14 1990

...TORNADO WATCH NUMBER 87 REMAINS IN EFFECT OF MOST OF MISSISSIPPI
   UNTIL 3 AM THURSDAY MORNING.

AT 930 PM CST A LINE OF VERY STRONG THUNDERSTORMS WAS APPROACHING THE
MISSISSIPPI RIVER FROM THE WEST. THE LINE EXTENDED FROM JUST EAST OF
CROSSETT ARKANSAS TO JUST EAST OF MONROE LOUSIANA TO NORTH OF ALEXANDRIA
LOUISIANA. THE LINE WAS MOVING TO THE EAST AT NEAR 30 MPH.

THIS LINE CONTAINS SOME SEVERE THUNDERSTORMS THAT HAVE ALREADY PRODUCED
DAMAGE OVER PORTIONS OF NORTHEAST LOUISINA. WINDS TO 60 MPH OR GREATER
MAY ACCOMPANY SOME OF THE STRONGER STORMS.

PEOPLE IN THE EXTREME WESTERN COUNTIES OF MISSISSIPPI...ESPECIALLY THOSE
IMMEDIATELY ALONG THE MISSISSIPPI RIVER NEED TO MAKE PREPARATIONS FOR
THE APPROACH OF SEVERE STORMS AND POSSIBLY EVEN TORNADOES WITHIN THE
NEXT HOUR OR TWO.

STAY TUNED TO LOCAL MEDIA ANDO NOAA WEATHER RADIO FOR THE LATEST
INFORMATION AND PLEASE TAKE PROTECTIVE ACTIONS IF WARNINGS ARE
ISSUED FOR YOUR AREA. THIS SITUATION IS POTENTIALLY VERY DEADLY
AS STRONG TORNADOES ARE POSSIBLE.
Special weather statement, Mar 14, 11:21 PM CST, 1 hour 34 minutes before
MSZ009-012-ALZ008-013-150700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
 1120 PM CST WED MAR 14 1990

 TORNADO WATCH NUMBER 87 CONTINUES IN EFFECT UNTIL 300 AM CST AND
INCLUDES MOST OF MISSISSIPPI.

AT 1115 PM CST RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM
10 MILES NORTHWEST OF ACKERMAN TO 15 MILES SOUTH OF FOREST.

ANOTHER LINE OF VERY STRONG THUNDERSTORMS  WAS JUST EAST OF THE
MISSISSIPPI RIVER. BOTH LINES WERE MOVING EAST AT 25 MPH.

EVERYONE SHOULD REMAIN WEATHER ALERT THROUGH THE NIGHT AS THIS IS A
POTENTIALLY DANGEROUS WEATHER SITUATION.
Special weather statement, Mar 14, 11:24 PM CST, 1 hour 31 minutes before
MSZALL-150500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1125 PM CST WED MAR 14 1990

...TORNADO WATCH NUMBER 87 REMAINS IN EFFECT OF MOST OF MISSISSIPPI
   UNTIL 3 AM THURSDAY MORNING.

AT 1120 PM RADAR INDICATED A GUST FRONT HAD DEVELOPED AHEAD OF THE LINE
OF THUNDERSTORMS OVER CENTRAL WARREN COUNTY AND SOUTHWEST YAZOO COUNTY.
WIND GUSTS OF 40 TO 50 MPH ARE POSSIBLE AS THIS GUST FRONT MOVES TO THE
EAST AT 30 MPH.

PEOPLE IN WARREN AND YAZOO COUNTY SHOULD BE ON THE LOOK OUT FOR STRONG
GUSTY WINDS FOR THE NEXT HOUR OR SO.
NEXT HOUR OR TWO.

STAY TUNED TO LOCAL MEDIA AND NOAA WEATHER RADIO FOR THE LATEST
INFORMATION AND PLEASE TAKE PROTECTIVE ACTIONS IF WARNINGS ARE
ISSUED FOR YOUR AREA. THIS SITUATION IS POTENTIALLY VERY DEADLY
AS STRONG TORNADOES ARE POSSIBLE.
Special weather statement, Mar 15, 12:48 AM CST, 7 minutes before
MSZALL-150630-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
1240 AM CST THU MAR 15 1990

...TORNADO WATCH NUMBER 87 REMAINS IN EFFECT FOR MOST OF MISSISSIPPI
   TILL 3 AM THIS MORNING...

AT 1235 AM...A LINE OF THUNDERSTORMS OVER WESTERN MISSISSIPPI EXTENDED
FROM NORTH OF GREENWOOD TO NEAR YAZOO CITY TO EDWARDS AND MEADVILLE.
THESE STORMS ARE CAPABLE OF PRODUCING PERIODS OF VERY HEAVY RAIN...
GUSTY WINDS...AND SMALL HAIL AS THEY MOVE EAST AT 25 MPH. THIS LINE
WAS ON THE LEADING EDGE OF A LARGE AREA OF MODERATE RAIN THAT COVERED
MOST OF WESTERN MISSISSIPPI. OTHER SCATTERED SHOWERS WERE OVER SOUTHEAST
COUNTIES.

ALTHOUGH THE THUNDERSTORMS HAVE WEAKENED FOR THE TIME BEING...THERE ARE
STILL INDICATIONS THAT THEY MAY RE-INTENSIFY IN THE NEXT 1 TO 2 HOURS.
IN THE MEANTIME...RAINFALL AMOUNTS OF 2 TO POSSIBLY 3 INCHES MAY FALL
ALONG AND TO THE WEST OF THE LINE DURING THE NEXT SEVERAL HOURS AND
THESE RAINS WILL CAUSE STREET AND LOW LAND FLOODING...ESPECIALLY IN
POOR DRAINAGE AREAS.

IF THE RAINS INCREASE...FLASH FLOODING COULD BECOME A PROBLEM LATER
THIS MORNING OVER MAINLY THE DELTA REGION. ADDITIONAL STATEMENTS WILL
BE MADE AS NEEuDED.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 14, 10:05 PM CSTSevere Thunderstorm WarningJANBolivar, Washington40 min
Mar 14, 10:48 PM CSTSevere Thunderstorm WarningJANBolivar, Sunflower, Washington42 min
Mar 14, 10:48 PM CSTSevere Thunderstorm WarningJANIssaquena, Sharkey42 min
Mar 14, 11:31 PM CSTSevere Thunderstorm WarningJANHumphreys, Sharkey, Washington, Yazoo44 min
Mar 14, 11:31 PM CSTSevere Thunderstorm WarningJANClaiborne, Jefferson44 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.