Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 287, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at May 23, 1997, 3:10 PM CDT for Lamar County, Mississippi. It was in force for 35 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
- May 23, 1997, 3:10 PM CDT (20:10 UTC)
- Expired
- May 23, 1997, 3:45 PM CDT
- In force
- 35 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Lamar County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 23, 3:15 PM CDT | Hail 0.75 | Purvis, 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
Slidell Radar S, LA (KSIL), launched 12:00Z, 8.2 hours before the alert went out and 108 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
- 992 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 678 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 232010 RRA SVRJAN MSC073-232045- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 310 PM CDT FRI MAY 23 1997 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST MISSISSIPPI ...LAMAR COUNTY AT 310 PM RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM NEAR PURVIS MOVING NORTHEAST AT 20 MPH. DIME SIZE HAIL HAS BEEN REPORT WITH THIS STORM. SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. < l&
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 23, 9:59 AM CDT, 5 hours 11 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072> 074-240400- AREA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1000 AM CDT FRI MAY 23 1997 A STATIONARY FRONT ALONG THE GULF COAST IS EXPECTED TO BEGIN MOVING SLOWLY NORTH LATER THIS MORNING AS A WARM FRONT...THIS COUPLED WITH A VERY MOIST AND UNSTABLE MASS OVER THE REGION WILL ENHANCE THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS THROUGH TONIGHT. LOCALLY HEAVY RAINdFALL WILL BE THE MAIN THREAT FROM ANY THUNDERSTORM ACTIVITY THROUGH TONIGHT. ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGEMENT AND HAM RADIO OPERATORS IS NOT EXPECTED THROUGH TONIGHT.
Special weather statement, May 23, 10:00 AM CDT, 5 hours 10 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072> 074-240400- AREA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1000 AM CDT FRI MAY 23 1997 A STATIONARY FRONT ALONG THE GULF COAST IS EXPECTED TO BEGIN MOVING SLOWLY NORTH LATER THIS MORNING AS A WARM FRONT...THIS COUPLED WITH A VERY MOIST AND UNSTABLE MASS OVER THE REGION WILL ENHANCE THE DEVELOPMENT OF SHOWERS AND THUNDERSTORMS THROUGH TONIGHT. LOCALLY HEAVY RAINFALL WILL BE THE MAIN THREAT FROM ANY THUNDERSTORM ACTIVITY THROUGH TONIGHT. ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGEMENT AND HAM RADIO OPERATORS IS NOT EXPECTED THROUGH TONIGHT.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 3:38 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Lawrence, Simpson | 52 min |
| May 23, 5:11 PM CDT | Flash Flood Warning | JAN | Hinds | 3 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.