Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 271, NWS New Orleans, LA
NWS New Orleans, LA issued this severe thunderstorm warning at Sep 1, 1997, 2:28 PM CDT for Jackson County, Mississippi. It was in force for 47 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
- Sep 1, 1997, 2:28 PM CDT (19:28 UTC)
- Expired
- Sep 1, 1997, 3:15 PM CDT
- In force
- 47 min
- Issued by
- NWS New Orleans, LA
- Area
- Whole counties
County Jackson County, MS
The radar
The Mobile radar (KMOB), 44 km from the middle of the area, began a volume at 19:30 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 1, 2:43 PM CDT | Hail 0.75 | Wade, MS | Dime size hail was reported by the Sheriff's Office. |
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
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.5 hours before the alert went out and 106 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.
- Mixed-layer CAPE
- 753 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KNEW 011929 RRA SVRNEW MSC059-012015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NEW ORLEANS LA 228 PM CDT MON SEP 1 1997 THE NATIONAL WEATHER SERVICE IN NEW ORLEANS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM CDT FOR RESIDENTS IN THE FOLLOWING LOCATION... IN SOUTH MISSISSIPPI ...JACKSON COUNTY AT 230PM NATIONAL WEATHER SERVICE RADAR IN SLIDELL INDICATED A SEVERE THUNDERSTORM FORMING OVER JACKSON COUNTY ALONG HIGHWAY 63 SOUTH OF THREE RIVERS. THE STORM IS MOVING TOWARDS THE SOUTHWEST AT 10 MPH. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
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, Sep 1, 9:59 AM CDT, 4 hours 29 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-021600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1000 AM CDT MON SEP 1 1997 AN UPPER LEVEL LOW PRESSURE TROUGH EXTENDS FROM THE MOUTH OF THE MISSISSIPPI RIVER TO THE NORTHEAST. THE AIRMASS REMAINS MOIST AND UNSTABLE. WINDS ALOFT CONTINUE TO BE WEAK. EXPECT SCATTERED THUNDERSTROMS TO DEVELOPE THIS AFTERNOON AND CONTINUE INTO THE EVENING HOURS. A FEW OF THESE THUNDERSTROMS COULD BECOME SEVERE WITH STRONG GUSTY WINDS.. HAIL.. HEAVY RAINFALL.. AND FREQUENT LIGHTNNG.
Special weather statement, Sep 1, 10:00 AM CDT, 4 hours 28 minutes before
LAZ034>040-046>049-056>070-MSZ068>071-080>082-021600- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA 1000 AM CDT MON SEP 1 1997 AN UPPER LEVEL LOW PRESSURE TROUGH EXTENDS FROM THE MOUTH OF THE MISSISSIPPI RIVER TO THE NORTHEAST. THE AIRMASS REMAINS MOIST AND UNSTABLE. WINDS ALOFT CONTINUE TO BE WEAK. EXPECT SCATTERED THUNDERSTROMS TO DEVELOPE THIS AFTERNOON AND CONTINUE INTO THE EVENING HOURS. A FEW OF THESE THUNDERSTROMS COULD BECOME SEVERE WITH STRONG GUSTY WINDS.. HAIL.. HEAVY RAINFALL.. AND FREQUENT LIGHTNNG.
Local storm report, Sep 1, 11:40 AM CDT, 2 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT...DELAYED
NATIONAL WEATHER SERVICE NEW ORLEANS LOUISIANA
1140 AM CDT MON SEP 01 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH LOCATION....
0415 PM BOGALUSA LA WIND DAMAGE
08/31/97 WASHINGTON *** 1 DEAD ***
SEVERAL LARGE TREES BLOWN
BLOWN DOWN. ONE TREE LANDED
ON CAR KILLING OCCUPANT.
ROOF BLOWN OFF BUSINESS.
0415PM BOGULUSA LA 1 INCH HAIL
08/31/97 WASHINGTON
0430 PM SLIDELL LA 1 INCH HAIL
08/31/97 ST TAMMANY QUARTER SIZE HAIL REPORTED
IN SLIDELL.Local storm report, Sep 1, 11:48 AM CDT, 2 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT...DELAYED
NATIONAL WEATHER SERVICE NEW ORLEANS LOUISIANA
1140 AM CDT MON SEP 01 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....PARISH LOCATION....
0415 PM BOGALUSA LA WIND DAMAGE
08/31/97 WASHINGTON *** 1 DEAD ***
SEVERAL LARGE TREES BLOWN
BLOWN DOWN. ONE TREE LANDED
ON CAR KILLING OCCUPANT.
ROOF BLOWN OFF BUSINESS.
0415PM BOGULUSA LA 1 INCH HAIL
08/31/97 WASHINGTON
0430 PM SLIDELL LA 1 INCH HAIL
08/31/97 ST TAMMANY QUARTER SIZE HAIL REPORTED
IN SLIDELL.The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 3:15 PM CDT | Severe Thunderstorm Warning | LIX | Harrison | 45 min |
| Sep 1, 3:30 PM CDT | Severe Thunderstorm Warning | LIX | Hancock, Harrison | 45 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; radar from the NEXRAD Level II archive.