Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 232, NWS New Orleans, LA

July 22, 1997Harrison County, Jackson County, Mississippi

NWS New Orleans, LA issued this severe thunderstorm warning at Jul 22, 1997, 2:53 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 37 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
Jul 22, 1997, 2:53 PM CDT (19:53 UTC)
Expired
Jul 22, 1997, 3:30 PM CDT
In force
37 min
Issued by
NWS New Orleans, LA
Area
Whole counties

Counties Harrison County, MS, Jackson County, MS

The radar

The Mobile radar (KMOB), 64 km from the middle of the area, began a volume at 19:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 7.9 hours before the alert went out and 84 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 12:00Z on 1997-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3464 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 12:00Z on 1997-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.1939Sfc1 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
3464 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-24 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 KNEW 221953
SVRNEW
MSC047-059-222030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW ORLEANS LA
253 PM CDT TUE JUL 22 1997
 
THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM CDT
FOR RESIDENTS IN THE FOLLOWING LOCATIONS...
 
IN SOUTH MISSISSIPPI
 
   ...SOUTHEASTERN HARRISON COUNTY...SOUTHERN JACKSON COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
 
AT 2;48 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 4 MILES NORTHWEST OF OCEAN SPRINGS. THESE
THUNDERSTORMS WAS MOVING SOUTHEAST AT 15 MPH.
 
 
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRPUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FORV%I=QQ%=9MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS.  HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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, Jul 22, 10:30 AM CDT, 4 hours 23 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
1030 AM CDT TUE JUL 22 1997

A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA...
SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL
DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO
THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS
OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND
THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE
TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY
WILL GRADUALLY DIMINISH THIS EVENING.

FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION..
RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE
AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET.
Special weather statement, Jul 22, 10:34 AM CDT, 4 hours 19 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
1030 PM CDT MON JUL 21 1997

A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA...
SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL
DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO
THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS
OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND
THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE
TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY
WILL GRADUALLY DIMINISH THIS EVENING.

FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION..
RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE
AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET.

LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
1230 PM CDT SUN JUL 20 1997

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE AREA
THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE LOWER 90S. SEVERE
THUNDERSTORMS ARE NOT EXPECTED ALTHOUGH SOME GUSTY WINDS ARE
POSSIBLE. THE ATMOSPHERE IS VERY MOIST RAISING THE POTENTIAL
FOR HEAVY RAINFALL WITH INDIVIDUAL STORMS. THE THUNDERSTORM
ACTIVITY SHOULD BEGIN TO ABATE THIS EVENING.
Special weather statement, Jul 22, 10:35 AM CDT, 4 hours 18 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
1030 PM CDT TUE JUL 22 1997

A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA...
SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL
DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO
THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS
OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND
THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE
TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY
WILL GRADUALLY DIMINISH THIS EVENING.

FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION..
RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE
AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET.

LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
1230 PM CDT SUN JUL 20 1997

SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE AREA
THIS AFTERNOON AS TEMPERATURES CLIMB INTO THE LOWER 90S. SEVERE
THUNDERSTORMS ARE NOT EXPECTED ALTHOUGH SOME GUSTY WINDS ARE
POSSIBLE. THE ATMOSPHERE IS VERY MOIST RAISING THE POTENTIAL
FOR HEAVY RAINFALL WITH INDIVIDUAL STORMS. THE THUNDERSTORM
ACTIVITY SHOULD BEGIN TO ABATE THIS EVENING.
Special weather statement, Jul 22, 10:39 AM CDT, 4 hours 14 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
1030 PM CDT TUE JUL 22 1997

A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA...
SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL
DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO
THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS
OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND
THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE
TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY
WILL GRADUALLY DIMINISH THIS EVENING.

FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION..
RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE
AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET.
Special weather statement, Jul 22, 10:41 AM CDT, 4 hours 12 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-180500

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
1030 AM CDT TUE JUL 22 1997

A MOIST UNSTABLE ATMOSPHERE PERSISTS OVER SOUTHEAST LOUISIANA...
SOUTHWEST AND COASTAL MISSISSIPPI. SCATTERED THUNDERSTORMS WILL
DEVELOP ACROSS THE AREA THIS AFTERNOON AS TEMPERATURES CLIMB INTO
THE UPPER 80S/LOWER 90S. THE HIGH MOISTURE CONTENT OF THE AIRMASS
OVER THE REGION WILL LIKLEY RESULT IN LOCALLY HEAVY RAINFALL AND
THE POSSIBILITY OF STRONG GUSTY WINDS...HOWEVER THERE IS LITTLE
TO NO RISK OF SEVERE THUNDERSTORMS. SHOWER AND THUNDERSTORM ACTIVITY
WILL GRADUALLY DIMINISH THIS EVENING.

FOR THE LATEST WEATHER INFORMATION PLEASE LISTEN TO TELEVISION..
RADIO..OR NOAA WEATHER RADIO OR VISIT THE NEW ORLEANS/BATON ROUGE
AREA FORECAST OFFICE HOMEPAGE ON THE INTERNET.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 22, 1:50 PM CDTSevere Thunderstorm WarningLIXJackson40 min
Jul 22, 3:35 PM CDTSevere Thunderstorm WarningLIXHarrison40 min
Jul 22, 4:04 PM CDTSevere Thunderstorm WarningLIXWalthall41 min
Jul 22, 5:28 PM CDTSevere Thunderstorm WarningLIXAmite47 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; radar from the NEXRAD Level II archive.