Alert archive / Mississippi / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 9, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Mar 17, 1987, 10:15 PM CST for Jasper County, Jones County, Mississippi. It was in force for 30 min. 2 reports 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 17, 1987, 10:15 PM CST (04:15 UTC)
- Expired
- Mar 17, 1987, 10:45 PM CST
- In force
- 30 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Jasper County, MS, Jones County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 17, 10:15 PM CST | Tornado F1 | Jones, MS | |
| Mar 17, 10:30 PM CST | Thunderstorm Wind 0 | Jones, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Jackson, MS (KJAN), launched 00:00Z, 4.3 hours before the alert went out and 104 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
- 83 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 622 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 554 m²/s²
- 0-3 km storm-relative helicity
- 785 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMEI 180415 SVRMEI MSC061-067-180445- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MERIDIAN MS 1015 PM CST TUE MAR 17 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL MISSISSIPPI...SOUTHERN JASPER AND NORTHERN JONES AT 1005 PM CST RADAR SHOWED A SEVERE THUNDERSTORM NEAR LAUREL MISSISSIPPI. THE STORM WAS MOVING NORTH AT 50 MPH. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA SO REMEMBER THESE STORMS CAN AND OCCASSIONALLY DO PRODUCE A TORNADO WITH LITTLE OR NO ADVANCE WARNING.
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 17, 6:34 PM CST, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 635 PM CST TUE MAR 17 1987 TORNADO WATCH NUMBER 34 CONTINUES TO BE IN EFFECT FOR MOST OF EAST CENTRAL MISSISSIPPI UNTIL 1000 PM CST. AT 630 PM CST RADAR SHOWED WIDELY SCATTERED THUNDERSTORMS MOVING INTO WESTERN NESHOBA AND WINSTON COUNTIES. THEY WERE MOVING NORTHEAST AT 35 MPH. RESIDENTS IN WINSTON AND NESHOBA COUNTIES OF EAST CENTRAL MISSISSIPPI CAN EXPECT GUSTY WINDS...LIGHTNING...AND PERIODS OF HEAVY RAIN AS THESE STORMS MOVE THROUGH THE TWO COUNTY AREA.
Special weather statement, Mar 17, 8:52 PM CST, 1 hour 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 850 PM CST TUE MAR 17 1987 TORNADO WATCH NUMBER 34 IS STILL IN EFFECT FOR MOST OF EAST CENTRAL MISSISSIPPI UNTIL 1000 PM CST. AT 845 PM CST RADAR SHOWED A 20 MILE WIDE AREA OF SCATTERED THUNDERSTORMS THAT EXTENDED FROM NEAR LOUISVILLE IN WINSTON COUNTY TO NEAR MOSELLE IN JONES COUNTY. THERE WERE OTHER THUNDERSTORMS IN EAST CENTRAL MISSISSIPPI. ALL OF THE THUNDERSTORMS WERE MOVING NORTH AT 45 MPH AND THE AREA WAS MOVING NORTHEAST AT 25 MPH. RESIDENTS OF EAST CENTRAL MISSISSIPPI CAN EXPECT PERIODS OF HEAVY RAIN... LIGHTNING...GUSTY WINDS AND SMALL HAIL AS THESE THUNDERSTORMS MOVE THROUGH THE AREA.
Special weather statement, Mar 17, 9:34 PM CST, 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 930 PM CST TUE MAR 17 1987 TORNADO WATCH NUMBER 34 IN EFFECT UNTIL 1000 PM FOR MOST OF EAST CENTRAL MISSISSIPPI. AT 930 PM CST RADAR SHOWED SCATTERED THUNDERSTORMS IN CLARKE AND LAUDERDALE COUNTIES OF EAST CENTRAL MISSISSIPPI. THEY WERE MOVING NORTH AT 50 MPH TOWARDS KEMPER COUNTY. RESIDENTS OF LAUDERDALE AND CLARKE COUNTIES CAN EXPECT GUSTY WINDS... LIGHTNING...PERIODS OF HEAVY RAIN...AND SMALL HAIL FOR THE NEXT 20 TO MINUTES. RESIDENTS OF KEMPER COUNTY SHOULD EXPECT THESE SCATTERED THUNDERSTORMS TO START IN ABOUT 20 OR 30 MINUTES. EVERYONE IN EAST CENTRAL MISSISSIPPI AND EXTREME WEST CENTRAL ALABAMA IS URGED ATO BE WEATHER ALERT FOR THE REMAINDER OF TONIGHT.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:27 PM CST | Severe Thunderstorm Warning | JAN | Lincoln | 33 min |
| Mar 17, 7:47 PM CST | Severe Thunderstorm Warning | JAN | Walthall | 18 min |
| Mar 17, 7:48 PM CST | Severe Thunderstorm Warning | JAN | Copiah | 27 min |
| Mar 17, 8:25 PM CST | Severe Thunderstorm Warning | JAN | Walthall | 35 min |
| Mar 17, 8:43 PM CST | Flash Flood Warning | JAN | Yazoo | 2 hr |
| Mar 17, 9:09 PM CST | Flash Flood Warning | JAN | Holmes, Humphreys, Leflore | 3 hr |
| Mar 17, 9:09 PM CST | Flash Flood Warning | JAN | Hinds | 3 hr |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1987Every severe thunderstorm warning in 1987
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.