Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 121, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Mar 5, 1997, 11:18 AM CST for Washington County, Mississippi. It was in force for 42 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
- Mar 5, 1997, 11:18 AM CST (17:18 UTC)
- Expired
- Mar 5, 1997, 12:00 PM CST
- In force
- 42 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Washington County, MS
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 5, 11:30 AM CST | Thunderstorm Wind | Greenville, 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
Jackson, MS (KJAN), launched 12:00Z, 5.3 hours before the alert went out and 134 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
- 266 J/kg
- Mixed-layer CIN
- -39 J/kg
- Mixed-layer LCL
- 581 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 193 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 051719 RRA SVRJAN MSC151-051800- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 1118 AM CST WED MAR 5 1997 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL NOON CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWEST MISSISSIPPI ...NORTHERN WASHINGTON COUNTY AT 1117 AM CST DOPPLER RADAR IN JACKSON INDICATED A SEVERE THUNDERSTORM JUST WEST OF GREENVILLE MOVING NORTHEAST NEAR 35 MPH. THE STORM WILL PASS THROUGH GREENVILLE AND METCALFE BY 1130 AM. A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. <
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, Mar 5, 9:40 AM CST, 1 hour 38 minutes before
MSZ001>082-060400- MISSISSIPPI THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 940 AM CST WED MAR 5 1997 ...SLIGHT CHANCE OF SEVERE THUNDERSTORMS STATEWIDE TODAY... A COLD FRONT...ENTERING NORTHWEST MISSISSIPPI...WILL COMBINE WITH WARM...MOIST AIR OVER THE STATE TO PRODUCE NUMEROUS THUNDERSTORMS THIS AFTERNOON AND EARLY THIS EVENING. THE THUNDERSTORMS WILL LINE UP JUST AHEAD OF THE FRONT AND MOVE THROUGH THE STATE WITH THE FRONT THIS AFTERNOON AND EVENING. THERE IS A SLIGHT CHANCE THAT SOME STORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS BEING THE MAIN THREAT. LOCALLY HEAVY RAIN MAY ALSO RESULT IN LOCALIZED FLASH FLOODING...ESPECIALLY IN LOW-LYING AREAS AND ALONG STREAMS AND CREEKS ALREADY FULL FROM EARLIER RAINS. ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT/CIVIL DEFENSE PERSONNEL MAY BE NECESSARY THIS AFTERNOON INTO THIS EVENING.
Special weather statement, Mar 5, 9:41 AM CST, 1 hour 37 minutes before
MSZ001>082-060400- MISSISSIPPI THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE JACKSON MS 940 AM CST WED MAR 5 1997 ...SLIGHT CHANCE OF SEVERE THUNDERSTORMS STATEWIDE TODAY... A COLD FRONT...ENTERING NORTHWEST MISSISSIPPI...WILL COMBINE WITH WARM...MOIST AIR OVER THE STATE TO PRODUCE NUMEROUS THUNDERSTORMS THIS AFTERNOON AND EARLY THIS EVENING. THE THUNDERSTORMS WILL LINE UP JUST AHEAD OF THE FRONT AND MOVE THROUGH THE STATE WITH THE FRONT THIS AFTERNOON AND EVENING. THERE IS A SLIGHT CHANCE THAT SOME STORMS MAY BECOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS BEING THE MAIN THREAT. LOCALLY HEAVY RAIN MAY ALSO RESULT IN LOCALIZED FLASH FLOODING...ESPECIALLY IN LOW-LYING AREAS AND ALONG STREAMS AND CREEKS ALREADY FULL FROM EARLIER RAINS. ACTIVATION OF STORM SPOTTERS...HAM RADIO OPERATORS AND EMERGENCY MANAGEMENT/CIVIL DEFENSE PERSONNEL MAY BE NECESSARY THIS AFTERNOON INTO THIS EVENING.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 5, 11:08 AM CST | Severe Thunderstorm Warning | JAN | Bolivar | 52 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.