Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 121, NWS Jackson, MS

March 5, 1997Washington County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 5, 1997, 11:18 AM CST for Washington County, Mississippi. It was in force for 42 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
Mar 5, 1997, 11:18 AM CST (17:18 UTC)
Expired
Mar 5, 1997, 12:00 PM CST
In force
42 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Washington County, MS

What was reported inside it

TimeReportWhereRemark
Mar 5, 11:30 AM CSTThunderstorm WindGreenville, 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.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 5.3 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 1997-03-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 266 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 1997-03-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 square meters per square second.1939587897Sfc1 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
266 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
581 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 051719 RRA
SVRJAN
MSC151-051800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1118 AM CST WED MAR 5 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL NOON CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST MISSISSIPPI
 
   ...NORTHERN WASHINGTON COUNTY
 
AT 1117 AM CST DOPPLER RADAR IN JACKSON INDICATED A SEVERE THUNDERSTORM
JUST WEST OF GREENVILLE MOVING NORTHEAST NEAR 35 MPH. THE STORM WILL
PASS THROUGH GREENVILLE AND METCALFE BY 1130 AM.
 
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.
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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 5, 9:40 AM CST, 1 hour 38 minutes before
MSZ001>082-060400-

MISSISSIPPI THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
940 AM CST WED MAR 5 1997

...SLIGHT CHANCE OF SEVERE THUNDERSTORMS STATEWIDE TODAY...

A COLD FRONT...ENTERING NORTHWEST MISSISSIPPI...WILL COMBINE WITH
WARM...MOIST AIR OVER THE STATE TO PRODUCE NUMEROUS THUNDERSTORMS THIS
AFTERNOON AND EARLY THIS EVENING. THE THUNDERSTORMS WILL LINE UP JUST
AHEAD OF THE FRONT AND MOVE THROUGH THE STATE WITH THE FRONT THIS
AFTERNOON AND EVENING.

THERE IS A SLIGHT CHANCE THAT SOME STORMS MAY BECOME SEVERE WITH LARGE
HAIL AND DAMAGING WINDS BEING THE MAIN THREAT. LOCALLY HEAVY RAIN MAY
ALSO RESULT IN LOCALIZED FLASH FLOODING...ESPECIALLY IN LOW-LYING
AREAS AND ALONG STREAMS AND CREEKS ALREADY FULL FROM EARLIER RAINS.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY
MANAGEMENT/CIVIL DEFENSE PERSONNEL MAY BE NECESSARY THIS AFTERNOON
INTO THIS EVENING.
Special weather statement, Mar 5, 9:41 AM CST, 1 hour 37 minutes before
MSZ001>082-060400-

MISSISSIPPI THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
940 AM CST WED MAR 5 1997

...SLIGHT CHANCE OF SEVERE THUNDERSTORMS STATEWIDE TODAY...

A COLD FRONT...ENTERING NORTHWEST MISSISSIPPI...WILL COMBINE WITH
WARM...MOIST AIR OVER THE STATE TO PRODUCE NUMEROUS THUNDERSTORMS THIS
AFTERNOON AND EARLY THIS EVENING. THE THUNDERSTORMS WILL LINE UP JUST
AHEAD OF THE FRONT AND MOVE THROUGH THE STATE WITH THE FRONT THIS
AFTERNOON AND EVENING.

THERE IS A SLIGHT CHANCE THAT SOME STORMS MAY BECOME SEVERE WITH LARGE
HAIL AND DAMAGING WINDS BEING THE MAIN THREAT. LOCALLY HEAVY RAIN MAY
ALSO RESULT IN LOCALIZED FLASH FLOODING...ESPECIALLY IN LOW-LYING
AREAS AND ALONG STREAMS AND CREEKS ALREADY FULL FROM EARLIER RAINS.

ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY
MANAGEMENT/CIVIL DEFENSE PERSONNEL MAY BE NECESSARY THIS AFTERNOON
INTO THIS EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 11:08 AM CSTSevere Thunderstorm WarningJANBolivar52 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1997Every severe thunderstorm warning in 1997

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.