Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 49, NWS Jackson, MS

February 15, 1990Washington County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 15, 1990, 5:48 PM CST for Washington County, Mississippi. It was in force for 27 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
Feb 15, 1990, 5:48 PM CST (23:48 UTC)
Expired
Feb 15, 1990, 6:15 PM CST
In force
27 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Washington 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
Feb 15, 6:05 PM CSTHail 0.85Washington, 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, 11.8 hours before the alert went out and 134 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 152348
SVRJAN
MSC151-160015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
548 PM CST THU FEB 15 1990
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN NORTHWEST MISSISSIPPI
          ...WASHINGTON
 
AT 545 PM CST...A SEVERE THUNDERSTORM WAS INDICATED 5 MILES SOUTHWEST
OF GREENVILLE...AND WAS HEADED TOWARD THE GREENVILLE AND LELAND AREAS
OF WASHINGTON COUNTY. 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

Local storm report, Feb 15, 4:56 PM CST, 52 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
455 PM CST THU FEB 15 1990

430 PM CST...TREE BLOWN ONTO HOUSE AT TOPTON IN NORTHEAST LAUDERDALE
             COUNTY.
Special weather statement, Feb 15, 5:05 PM CST, 43 minutes before
MSZ009-012-ALZ008-013-160000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MERIDIAN MS
500 PM CST THU FEB 15 1990

ALL TORNADO AND SEVERE THUNDERSTORM WARNINGS FOR EAST CENTRAL
MISSISSIPPI AND EXTREME WEST CENTRAL ALABAMA HAVE EXPIRED.

FLASH FLOOD WARNING FOR LAUDERDALE COUNTY MISSISSIPPPI IN EFFECT
UNTIL 845 PM. TORNADO WATCH NUMBER 39 WHICH INCLUDES ALL COUNTIES
IN EAST CENTRAL MISSISSIPPI IN EFFECT UNTIL 10 PM. TORNADO WATCH
NUMBER 38 WHICH INCLUDES SUMTER AND CHOCTAW COUNTIES IN EXTREME
WEST CENTRAL ALABAMA IN EFFECT UNTIL 8 PM.

AT 5 PM SOWASHEE CREEK WAS AT 14.9 FEET UP 2 FEET THE PAST HOUR.
PEOPLE LIVING ALONG CREEKS AND SMALL STREAMS SHOULD BE READY
TO EVACUATE.

AT 450 PM CST RADAR INDICATED RAIN AND STRONG THUNDERSTORMS OVER
MOST OF MISSISSIPPI AND WESTERN ALABAMA.
Local storm report, Feb 15, 5:08 PM CST, 40 minutes before
STORM REPORTS
NATIONAL WEATHER SERVICE JACKSON MS
500 PM CST THU FEB 15 1990

445 PM...JACKSON...GOLFBALL SIZE HAILAT CLINTON BLVD (UNNAMED CITIZEN)

445 PM...PARCHMAN...PEA TO MARBLE SIZE HAIL (SUNFLOWER COUNTY CD)

440 PM...JACKSON...GOLFBALL TO BASEBALL SIZE HAIL (UNNAMED CITIZEN)

440 PM...NATCHEZ...HIGHS WINDS IN EXCESS OF 75 MPH MEASURED BY
         INTERNATIONAL PAPER COMPANY. TOP AND SIDES BLOWN OFF TIN
         STORAGE BUILDING BUT NO TORNADO SIGHTED. LOCAL FLOODING IN LOW
         AREAS..13 INCHES STANDING ON ROAD. NUMEROUS MUD SLIDES (ADAMS
         COUNTY EOC)

336 PM...RALEIGH...ONE TRAILER FLOODED (RALEIGH PD)

200 PM...MCCOMB...FUNNEL CLOUD IN SOUTHERN MCCOMB (PIKE COUNTY CD)

910 AM...BUSHY SPRINGS...TREES DOWN. TWO HOMES DAMAGED 7 MI E OF
         CRYSTAL SPRINGS (JACKSON HINDS EOC)

958 AM...BUSHY SPRINGS...1 HOUSE DESTROYED. 8 LIGHT TO MODERATE DAMAGE.
         TREES AND POWER LINES DOWN. ROADS BLOCKED.
Special weather statement, Feb 15, 5:14 PM CST, 34 minutes before
MSZALL-160000-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
510 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 505 PM CST...A SOLID AREA OF RAIN AND STRONG THUNDERSTORMS CONTINUED
OVER SOUTHWEST AND CENTRAL MISSISSIPPI.  THE HEAVIEST STORM WAS LOCATED
NEAR GEORGETOWN.  ANOTHER STRONG STORM WAS INDICATED NEAR HERMANVILLE
BUT WAS DECREASING IN INTENSITY.  THE STRONG THUNDERSTORM IN THE JACKSON
AREA HAD ALSO DECREASED IN INTENSITY.  THE STORMS WERE MOVING NORTHEAST
AT 45 MPH WHILE THE RAIN AREA WAS DRIFTING NORTH.

A LINE OF STRONG THUNDERSTORMS CONTINUES ACROSS NORTHWEST MISSISSIPPI.
THE STRONGEST STORM ALONG THE LINE IN MISSISSIPPI WAS NEAR DREW AND
PARCHMAN.  THE STORM NEAR PARCHMAN PRODUCED PEA TO MARBLE SIZE HAIL
DURING THE PAST HALF HOUR.  THE LINE OF STORMS IS MOVING EAST AROUND
20 MPH.

ALTHOUGH THE GENERAL INTENSITY TREND OF THE STORMS HAS BEEN DECREASING..
THE STORMS ARE STILL PRODUCING HEAVY RAINS.  PEOPLE DRIVING HOME FROM
WORK SHOULD BE CAREFUL IF THEY ARE CAUGHT IN ONE OF THESE DOWNPOURS.
Local storm report, Feb 15, 5:21 PM CST, 27 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
521 PM CST THU FEB 15 1990

LATE REPORT

NOON  CST...TREE BLOWN DOWN NEAR SUQUALENA IN NORTHWEST LAUDERDALE
             COUNTY.
Special weather statement, Feb 15, 5:45 PM CST, 3 minutes before
MSZALL-160100-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE JACKSON MS
545 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 40 FOR NORTHERN MISSISSIPPI TILL MIDNIGHT...

AT 540 PM CST...LARGE AREAS OF RAIN CONTINUED OVER CENTRAL AND NORTWEST
MISSISSIPPI.  THERE WERE SCATTERED EMBEDDED THUNDERSTORMS WITHIN THESE
AREAS OF RAIN...AND THE STRONGEST STORM WAS MOVING ACROSS THE
MISSISSIPPI RIVER 10 MILES SOUTH OF GREENVILLE.

THERE HAVE BEEN NUMEROUS REPORTS OF FUNNEL CLOUDS FROM SOUTHERN SUN-
FLOWER COUNTY ACROSS LEFLORE COUNTY SINCE 5 PM.  THERE HAVE BEEN NO
KNOWN CONFIRMED TORNADOES IN THIS AREA AT THIS TIME.

MOVEMENT WAS NORTHEAST AT 45 MILES AN HOUR.

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, 4:51 PM CSTSevere Thunderstorm WarningJANHinds39 min
Feb 15, 5:03 PM CSTFlash Flood WarningJANJasper6 hr

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.