Alert archive / Mississippi / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 4, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Mar 17, 1987, 3:11 PM CST for Adams County, Mississippi. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Mar 17, 1987, 3:11 PM CST (21:11 UTC)
- Expired
- Mar 17, 1987, 3:37 PM CST
- In force
- 26 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Adams County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 9.2 hours before the alert went out and 152 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
- 0 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 275 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KJAN 172111
SVRJAN
MSC001-172200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
311 PM CST TUE MAR 17 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 400 PM CST FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHWEST MISSISSIPPI
...ADAMS
A SEVERE THUNDERSTORM WAS LOCATED 15 MILES SOUTHWEST OF NATCHEZ.
THE THUNDERSTORM WAS MOVING NORTHEAST AT 40 MPH. IT WILL BE
MOVING THROUGH THE NATCHEZ AREA WITHIN THE NEXT 30 MINUTES.
HEAVY RAIN...STRONG WINDS...AND HAIL ARE LIKELY WITH THIS
THUNDERSTORM.
TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE THUNDERSTORMS CAN ANDn OCCASIONALLY DO 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 17, 12:21 PM CST, 2 hours 50 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1220 PM CST TUE MAR 17 1987 TORNADO WATCH NUMBER 33 IS IN EFFECT FOR PART OF SOUTHWEST MISSISSIPPI UNTIL 4 PM THIS AFTERNOON. TORNADOES.+..LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE. RESIDENTS OF THE SOUTHWEST COUNTIES SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Mar 17, 2:10 PM CST, 1 hour 1 minute before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 210 PM CST TUE MAR 17 1987 A LINE OF STRONG THUNDERSZTORMS IS ENETERING SOUTHWEST MISSISSIPPI. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST NORTH AND WEST OF NATCHEZ. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH. THE THUNDERSTORMS WILL BE MOVING THROUGH NORTHERN ADAMS...WESTERN JEFFERSON...AND WESTERN CLAIBORNE COUNTIES WITHIN THE NEXT HOUR. STRONG GUSTY WINDS...HEAVY R'AIN...AND SMALL HAIL IS LIKELY WITH THE PASSAGE OF THESE THUNDERSTORMS. PEOPLE IN THE SOUTHWST MISSISSIPPI SHOULD CONTINUE TO MONITOR THE WATHER THIS AFTERNOON AS THIS STORM SYSTEM MOVES THROUGH.
Special weather statement, Mar 17, 2:15 PM CST, 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 210 PM CST TUE MAR 17 1987 A LINE OF STRONG THUNDERSTORMS IS ENTERING SOUTHWEST MISSISSIPPI. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST NORTH AND WEST OF NATCHEZ. THE THUNDERSTORMS WERE MOVING NORTHEAST AT 40 MPH. THE THUNDERSTORMS WILL BE MOVING THROUGH NORTHERN ADAMS...WESTERN JEFFERSON...AND WESTERN CLAIBORNE COUNTIES WITHIN THE NEXT HOUR. STRONG GUSTY WINDS...HEAVY+ RAIN...AND SMALL HAIL IS LIKELY WITH THE PASSAGE OF THESE THUNDERSTORMS. PEOPLE IN SOUTHWEST MISSISSIPPI SHOULD CONTINUE TO MONITOR THE WEATHER THIS AFTERNOON AS THIS STORM SYSTEM MOVES THROUGH. ...SEVERAL SPELLING CORRECTIONS WERE MADE....
Special weather statement, Mar 17, 3:07 PM CST, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 305 PM CST TUE MAR 17 1987 ...TORNADO WATCH NUMBER 33 IS STILL IN EFFECT UNTIL 4PM FOR SOUTHWEST MISSISSIPPPI... STRONG THUNDERSTORM CONTINUE TO MOVE NORTHEAST UP THE MISSISSIPPI RIVER. THE STRONGEST THUNDERSTORM WAS LOCATED IN EXTREME SOUTHWEST WARREN COUNTY AT 3 PM. IT WILL BE MOVING NEAR VICKSBURG BETWEEN 330 AND 400 PM THIS AFTERNOON. BRIEF HEAVY RAIN...STRONG GUSTY WfINDS...AND SMALL HAIL IS LIKELY WITH THIS THUNDERSTORM. PEOPLE IN SOUTHWEST MISSISSIPPI SHOULD CONTINUE TO MONITOR THE WEATHER THIS AFTERNOON AS THIS STORM SYSTEM MOVES THROUGH.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 4:31 PM CST | Flash Flood Warning | JAN | Warren | 119 min |
| Mar 17, 4:35 PM CST | Tornado Warning | JAN | Claiborne | 25 min |
| Mar 17, 4:47 PM CST | Tornado Warning | JAN | Hinds | 28 min |
| Mar 17, 5:25 PM CST | Tornado Warning | JAN | Claiborne, Jefferson | 30 min |
| Mar 17, 5:44 PM CST | Tornado Warning | JAN | Hinds, Rankin | 31 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; the sounding from the Mesonet's radiosonde archive.