Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 129, NWS New Orleans, LA

April 27, 1997Pike County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Apr 27, 1997, 3:43 AM CDT for Pike County, Mississippi. It was in force for 32 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
Apr 27, 1997, 3:43 AM CDT (08:43 UTC)
Expired
Apr 27, 1997, 4:15 AM CDT
In force
32 min
Issued by
NWS New Orleans, LA
Area
Whole counties

County Pike County, MS

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 27, 12:00 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 8.7 hours before the alert went out and 123 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, Slidell Radar S, LA at 00:00Z on 1997-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 96 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, Slidell Radar S, LA at 00:00Z on 1997-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 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
96 J/kg
Mixed-layer CIN
-414 J/kg
Mixed-layer LCL
887 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
371 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.

353 
WUUS1 KNEW 270844 RRA
SVRNEW
MSC113-270915-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
343 AM CDT SUN APR 27 1997
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  415 AM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATION...
 
IN SOUTH MISSISSIPPI
 
   ...NORTHERN PIKE COUNTY
 
AT 3:41 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 4 MILES SOUTHWEST OF MCCOMB. THE STORM WAS
MOVING NORTHEAST NEAR 35 MPH. THE STORM WILL MOVE NEAR MCCOMB BY
3:50 AM. ALSO..THE COMMUNITIES OF SUMMIT AND PRICEDALE ARE IN THE
PATH OF THIS STORM.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DONT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 26, 11:40 PM CDTSevere Thunderstorm WarningLIXWilkinson35 min
Apr 27, 2:08 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson52 min
Apr 27, 3:09 AM CDTSevere Thunderstorm WarningLIXAmite, Wilkinson36 min
Apr 27, 5:07 AM CDTFlash Flood WarningLIXPike2 hr
Apr 27, 6:00 AM CDTSevere Thunderstorm WarningLIXWalthall15 min
Apr 27, 7:48 AM CDTFlash Flood WarningLIXPike117 min
Apr 27, 10:04 AM CDTFlash Flood WarningLIXPike, Walthall4 hr
Apr 27, 11:35 AM CDTFlash Flood WarningLIXPike, Walthall4 hr

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.