Alert archive / Mississippi / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 1, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Feb 15, 1987, 12:47 PM CST for Rankin County, Mississippi. It was in force for 43 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
- Feb 15, 1987, 12:47 PM CST (18:47 UTC)
- Expired
- Feb 15, 1987, 1:30 PM CST
- In force
- 43 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Rankin 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 |
|---|---|---|---|
| Feb 15, 1:15 PM CST | Tornado F1 | Rankin, 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 12:00Z, 6.8 hours before the alert went out and 14 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Feb 15, 9:38 AM CST, 3 hours 9 minutes before
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</html>Special weather statement, Feb 15, 10:58 AM CST, 1 hour 49 minutes before
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</html>Special weather statement, Feb 15, 12:19 PM CST, 28 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON MS
1210 PM CST SUN FEB 15 1987
...TORNADO WATCH NUMBER 10 IN EFFECT UNTIL 6 PM FOR CENTRAL AND
SOUTH MISSISSIPPI...
AT NOON...A SOLID LINE OF STRONG THUNDERSTORMS WAS CONTINUING TO MOVE
EAST THROUGH SOUTH AND CENTRAL MISSISSIPPI. AT NOON IT WAS LOCATED FROM
JUST EAST OF VICKSBURG TO JUST WEST OF MCCOMB.{}
THE THUNDERSTORMS IN THE LINE WERE PRODUCING STRONG GUSTY WINDS WITH
PEAK GUSTS IN THE 30 TO 40 MPH RANGE. SMALL HAIL IS POSSIBLE WITH
THESE THUNDERSTORMS.
THE LINE OF THUNDERSTORMS WILL BE MOVING THROUGH MCCOMB IN THE NEXT 20
MINUTES. ALSO...IT WILL MOVE THROUGH CRYSTAL SPRINGS...HAZELHURST...
AND BROOKHAVEN IN THcE NEXT 45 MINUTES. IT SHOULD ARRIVE IN JACKSON
AROUND 115 PM.
...AM CHANGED TO PM IN THE DATE/TIME LINE...Special weather statement, Feb 15, 12:22 PM CST, 25 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 1220 PM CST SUN FEB 15 1987 A TORNADO WATCH WHICH INCLUDES THE COUNTIES OF JASPER..CLARKE.. LAUDERDALE..NEWTON..JONES AND WAYNE IN EAST CENTRAL MISSISSIPPI COUNTIES IN EFFECT UNTIL 600 PM CST. AT 1215 RADAR SHOWED VERY STRONG THUNDERSTORMS IN NORTHWEST CLARKE AND SOUTHWEST JONES COUNTIES MOVING EAST AT 35 MPH. ELSEWHERE..A 70 MILE WIDE AREA OF SHOWERS AND HEAVY RAIN EXTENDdED FROM NEAR KOSCIUSKO TO BILOXI. PEOPLE IN THE WATCH AREA SHOULD BE ALERT FOR DANGEROUS WEATHER CONDITIONS THIS AFTERNOON AND BE PREPARED TO TAKE QUICK ACTION IF THREATENING WEATHER APPROACHES. <<
Special weather statement, Feb 15, 12:33 PM CST, 14 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 1220 PM CST SUN FEB 15 1987 A TORNADO WATCH WHICH INCLUDES THE COUNTIES OF JASPER..CLARKE.. LAUDERDALE..NEWTON..JONES AND WAYNE IN EAST CENTRAL MISSISSIPPI CONTINUES IN EFFECT UNTIL 600 PM CST. AT 1215 RADAR SHOWED VERY STRONG THUNDERSTORMS IN NORTHWEST CLARKE AND SOUTHWEST JONES COUNTIES MOVING EAST AT 35 MPH. ELSEWHERE..A 70 MILE WIDE AREA OF SHOWERS AND HEAVY RAIN EXmTENDED FROM NEAR KOSCIUSKO TO BILOXI. PEOPLE IN THE WATCH AREA SHOULD BE ALERT FOR DANGEROUS WEATHER CONDITIONS THIS AFTERNOON AND BE PREPARED TO TAKE QUICK ACTION IF THREATENING WEATHER APPROACHES.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 1:55 PM CST | Tornado Warning | JAN | Jones | 57 min |
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.