Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 296, NWS Jackson, MS

May 27, 1997Humphreys County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 27, 1997, 6:56 AM CDT for Humphreys County, Mississippi. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 27, 1997, 6:56 AM CDT (11:56 UTC)
Expired
May 27, 1997, 7:45 AM CDT
In force
49 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Humphreys County, MS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 27, 4:45 AM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 11.9 hours before the alert went out and 99 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 00:00Z on 1997-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3427 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1997-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
3427 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.1

Open this sounding in Storm Lab

The text

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

968 
WUUS1 KJAN 271158 RRA
SVRJAN
MSC053-271245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
656 AM CDT TUE MAY 27 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  745 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL MISSISSIPPI
 
   ...HUMPHREYS COUNTY
 
AT 656 AM...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
APPROACHING NORTHWESTERN HUMPHREYS COUNTY. THE STORMS WERE MOVING EAST
AT 35 MPH...AND WILL MOVE NEAR ISOLA AND BELZONI BY 730 AM. DAMAGING
WINDS AND HAIL UP TO QUARTER SIZE ARE POSSIBLE WITH THESE STORMS. DIME
SIZE HAIL WAS REPORTED NINE MILES WEST OF HOLLANDALE AT 654 AM.
 
IF YOU ARE OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AWAY FROM
WINDOWS.  DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
<
65
 
 
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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, May 27, 1:54 AM CDT, 5 hours 2 minutes before
MSZ026>029-032-033-270900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
154 AM CDT TUE MAY 27 1997

THE FOLLOWING COUNTIES HAVE BEEN CLEARED FOR SEVERE THUNDERSTORM WATCH
NUMBER 331...

CARROLL... CHOCTAW... GRENADA... MONTGOMERY... OKTIBBEHA... WEBSTER..

THE THREAT OF SEVERE WEATHER HAS SHIFTED TO THE EAST OF THE AREA FOR THE
NEXT SEVERAL HOURS...ALTHOUGH SCATTERED SHOWERS AND THUNDERSTORMS ARE
STILL POSSIBLE IN THE AREA EARLY THIS MORNING.
Special weather statement, May 27, 2:00 AM CDT, 4 hours 56 minutes before
MSZ026>029-032-033-270900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
154 AM CDT TUE MAY 27 1997

THE FOLLOWING COUNTIES HAVE BEEN CLEARED FOR SEVERE THUNDERSTORM WATCH
NUMBER 331...

CARROLL... CHOCTAW... GRENADA... MONTGOMERY... OKTIBBEHA... WEBSTER..

THE THREAT OF SEVERE WEATHER HAS SHIFTED TO THE EAST OF THE AREA FOR THE
NEXT SEVERAL HOURS...ALTHOUGH SCATTERED SHOWERS AND THUNDERSTORMS ARE
STILL POSSIBLE IN THE AREA EARLY( THIS MORNING.

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 4:47 AM CDTSevere Thunderstorm WarningJANBolivar58 min
May 27, 5:49 AM CDTSevere Thunderstorm WarningJANSunflower41 min
May 27, 6:21 AM CDTSevere Thunderstorm WarningJANBolivar, Washington69 min
May 27, 6:47 AM CDTSevere Thunderstorm WarningJANSunflower43 min
May 27, 7:07 AM CDTSevere Thunderstorm WarningJANLeflore53 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; the sounding from the Mesonet's radiosonde archive.