Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 284, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at May 19, 1997, 3:46 PM CDT for Simpson County, Mississippi. It was in force for 44 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 19, 1997, 3:46 PM CDT (20:46 UTC)
- Expired
- May 19, 1997, 4:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Simpson County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 19, 4:00 PM CDT | Thunderstorm Wind | Mendenhall, MS | Minor damage was done to a high school roof. Several trees and power lines were blown down. |
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
Jackson, MS (KJAN), launched 12:00Z, 8.8 hours before the alert went out and 48 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
- 738 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 483 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
395 WUUS1 KJAN 192046 RRA SVRJAN MSC127-192130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 346 PM CDT MON MAY 19 1997 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN CENTRAL MISSISSIPPI ...SIMPSON COUNTY AT 345 PM TWO SEVERE THUNDERSTORMS WERE INDICATED...ONE WAS 4 MILES WEST OF MENDENHALL AND THE SECOND ONE 7 MILES WEST OF PANOLA. BOTH STORMS WERE MOVING NORTHEAST AT 25 MPH AND SHOULD AFFECT THE MENDENHALL TO MAGEE AREAS ALONG HIGHWAY 49 BY 400 PM. 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. < 75
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 19, 10:35 AM CDT, 5 hours 11 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072> 074-200400- AREA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1035 AM CDT MON MAY 19 1997 THE AIRMASS OVER THE REGION TODAY IS MOIST AND UNSTABLE. AN UPPER LEVEL DISTURBANCE APPROACHING FROM THE WEST HAS ALREADY TRIGGERED THUNDERSTORM DEVELOPMENT OVER THE SOUTHERN HALF OF MISSISSIPPI...AND THESE STORMS WILL SPREAD FARTHER NORTH DURING THE DAY. OVERNIGHT...THUNDERSTORMS ARE EXPECTED TO BE MOST NUMEROUS ACROSS NORTH MISSISSIPPI AS A COLD FRONT MOVES INTO THE AREA...WITH A CHANCE OF THUNDERSTORMS CONTINUING ACROSS THE REMAINDER OF THE AREA. ALTHOUGH A FEW STORMS MAY BRIEFLY PRODUCE SMALL HAIL OR STRONG WINDS... WIDESPREAD SEVERE WEATHER IS NOT EXPECTED TODAY OR TONIGHT. ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...OR EMERGENCY MANAGEMENT PERSONNEL FOR SEVERE WEATHER PROBABLY WILL NOT BE NECESSARY TODAY OR TONIGHT.
Special weather statement, May 19, 10:37 AM CDT, 5 hours 9 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072> 074-200400- AREA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1035 AM CDT MON MAY 19 1997 THE AIRMASS OVER THE REGION TODAY IS MOIST AND UNSTABLE. AN UPPER LEVEL DISTURBANCE APPROACHING FROM THE WEST HAS ALREADY TRIGGERED THUNDERSTORM DEVELOPMENT OVER THE SOUTHERN HALF OF MISSISSIPPI...AND THESE STORMS WILL SPREAD FARTHER NORTH DURING THE DAY. OVERNIGHT...THUNDERSTORMS ARE EXPECTED TO BE MOST NUMEROUS ACROSS NORTH MISSISSIPPI AS A COLD FRONT MOVES INTO THE AREA...WITH A CHANCE OF THUNDERSTORMS CONTINUING ACROSS THE REMAINDER OF THE AREA. ALTHOUGH A FEW STORMS MAY BRIEFLY PRODUCE SMALL HAIL OR STRONG WINDS... WIDESPREAD SEVERE WEATHER IS NOT EXPECTED TODAY OR TONIGHT. ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...OR EMERGENCY MANAGEMENT PERSONNEL FOR SEVERE WEATHER PROBABLY WILL NOT BE NECESSARY TODAY OR TONIGHT.
Special weather statement, May 19, 10:45 AM CDT, 5 hours 1 minute before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072> 074-200400- AREA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 1045 AM CDT MON MAY 19 1997 THE AIRMASS OVER THE REGION TODAY IS MOIST AND UNSTABLE. AN UPPER LEVEL DISTURBANCE APPROACHING FROM THE WEST HAS ALREADY TRIGGERED THUNDERSTORM DEVELOPMENT OVER SOUTHERN MISSISSIPPI...AND THESE STORMS WILL SPREAD FARTHER NORTH DURING THE DAY. OVERNIGHT...THUNDERSTORMS ARE EXPECTED TO BE MOST NUMEROUS ACROSS NORTH MISSISSIPPI AS A COLD FRONT MOVES INTO THE AREA...WITH A CHANCE OF THUNDERSTORMS CONTINUING ACROSS THE REMAINDER OF THE REGION. ALTHOUGH A FEW STORMS MAY BRIEFLY PRODUCE SMALL HAIL OR STRONG WINDS... WIDESPREAD SEVERE WEATHER IS NOT EXPECTED TODAY OR TONIGHT. ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS...OR EMERGENCY MANAGEMENT PERSONNEL FOR SEVERE WEATHER PROBABLY WILL NOT BE NECESSARY TODAY OR TONIGHT.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 7:02 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Hinds | 43 min |
| May 19, 12:45 PM CDT | Flash Flood Warning | JAN | Jones | 3 hr |
| May 19, 3:20 PM CDT | Severe Thunderstorm Warning | JAN | Franklin | 25 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.