Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 152, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jun 21, 1990, 4:58 PM CDT for Humphreys County, Mississippi. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- Jun 21, 1990, 4:58 PM CDT (21:58 UTC)
- Expired
- Jun 21, 1990, 6:00 PM CDT
- In force
- 62 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Humphreys 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, 10.0 hours before the alert went out and 99 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
- 3038 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 6 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 212200 SVRJAN MSC053-212300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 458 PM CDT THU JUN 21 1990 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL MISSISSIPPI ...HUMPHREYS COUNTY AT 455 PM...RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTHEAST OF SILVER CITY MOVING NORTHWEST AROUND 10 MILES AN HOUR. THIS STORM PROBABLY CONTAINS LARGE HAIL AND MAY PRODUCE A VERY STRONG WIND GUST. THIS STORM WILL PROBABLY REACH SILVER CITY BEFORE 530 PM. PEOPLE NEAR THE STORM SHOULD MOVE INSIDE A STRONG BUILDING AWAY FROM WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. MOTORISTS DON'T DRIVE INTO WATER CROSSINGS. <
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, Jun 21, 2:15 PM CDT, 2 hours 43 minutes before
MSZALL-212100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 215 PM CDT THU JUN 21 1990 ...STRONG THUNDERSTORMS DEVELOPING OVER MISSISSIPPI THIS AFTERNOON... WIDESPREAD GULF MOISTURE AND HOT AFTERNOON TEMPERATURES HAVE RESULTED IN A VERY UNSTABLE AIR MASS OVER THE STATE. SCATTERED THUNDERSTORMS HAVE RAPIDLY DEVELOPED OVER NORTHERN AND CENTRAL SECTIONS OF MISSISSIPPI...PRODUCING LIGHTNING AND HEAVY RAIN. A FEW STRONG STORMS WERE REPORTED OVER NORTHWEST AND EAST CENTRAL MISSISSIPPI...ACCOMPANIED BY HAIL AND LOCALLY STRONG WIND. SCATTERED THUNDERSTORMS WILL CONTINUE OVER NORTH AND CENTRAL MISSISSIPPI THIS AFTERNOON AND EVENING...WITH THUNDERSTORMS POSSIBLE SOUTH. PLEASE STAY TUNED FOR PERIODIC WEATHER UPDATES AND POSSIBLE SEVERE WEATHER WARNINGS.
Special weather statement, Jun 21, 2:45 PM CDT, 2 hours 13 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013- ALZ004-008-013-016-212045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 230 PM CDT THU JUN 21 1990 AT 230 PM CDT...JACKSON RADAR INDICATED SCATTERED THUNDERSTORMS WITH VERY HEAVY RAIN OVER NORTH MISSISSIPPI NEAR CHARLESTON AND OVER EAST CENTRAL MISSISSIPPI NEAR FOREST. OTHER THUNDERSTORMS WERE SCATTERED OVER MAINLY THE NORTHERN HALF OF THE STATE. PERSONS IN NORTH AND EAST CENTRAL MISSISSIPPI SHOULD BE ON THE LOOKOUT FOR VERY HEAVY RAIN ...DANGEROUS LIGHTNING...STRONG GUSTY WINDS AND SMALL HAIL. MOVEMENT WAS EAST AT 5 MILES AN HOUR. F
Special weather statement, Jun 21, 3:13 PM CDT, 1 hour 45 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013- ALZ004-008-013-016-212100- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 300 PM CDT THU JUN 21 1990 AT 300 PM...JACKSON RADAR INDICATED A BAND OF THUNDERSTORMS WITH VERY HEAVY RAIN EXTENDING FROM WATER VALLEY TO LELAND. THUNDERSTORMS WITH VERY HEAVY RAIN WERE ALSO LOCATED NEAR PELAHATCHIE AND 10 MILES WEST OF CARTHAGE. OTHER THUNDERS^TORMS WERE SCATTERED OVER MAINLY THE NORTH HALF OF THE STATE. VERY LITTLE MOVEMENT WAS INDICATED.
Special weather statement, Jun 21, 4:12 PM CDT, 46 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013- ALZ004-008-013-016-212100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 405 PM CDT THU JUN 21 1990 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM FOR MUCH OF NORTHERN AND CENTRAL MISSISSIPPI... THE SEVERE THUNDERSTORM WARNING FOR MADISON COUNTY EXPIRED AT 400 PM. NO REPORTS OF SEVERE WEATHER HAD BEEN RECEIVED DURING THE PAST HOUR. HOWEVER...RADAR INDICATES A STRONG THUNDERSTORM REMAINS IN MADISON COUNTY NEAR FLORA. THIS STORM IS SHOWING LITTLE MOVEMENT BUT MAY BE DRIFTING TO THE SOUTHWEST. OTHER HEAVY THUNDERSTORMS WERE SCATTERED OVER THE NORTH HALF OF THE STATE. THE STRONGEST STORMS WERE INDICATED WEST OF BATESVILLE AND NEAR LAKE PROVIDIENCE LOUISIANA. THESE STORMS WERE SHOWING LITTLE MOVEMENT. ISOLATED STORMS OF LESSER INTENSITY WERE SHOWN IN SOUTHEAST MISSISSIPPI.
Local storm report, Jun 21, 4:26 PM CDT, 32 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
425 PM CDT WED JUN 21 1990
400 PM CDT NOXUBEE COUNTY CIVIL DEFENSE REPORTS DIME SIZE HAIL
SOUTHWEST OF SHUQUALAK NEAR THE NOXUBEE/KEMPER COUNTY
LINE.Special weather statement, Jun 21, 4:49 PM CDT, 9 minutes before
MSZALL-ARZ014>016-LAZ002-003-004-006-009-010-013- ALZ004-008-013-016-212100- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 440 PM CDT THU JUN 21 1990 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM FOR MUCH OF NORTHERN AND CENTRAL MISSISSIPPI... A DELAYED REPORT WAS RECEIVED OF TREES DOWN AND GOLF BALL SIZE HAIL AT 345 PM AROUND FLORA IN WESTERN MADISON COUNTY. THIS STORM HAS DRIFTED TO THE WEST TO THE MADISON-YAZOO COUNTY LINE AND DECREASED SLIGHTLY IN INTENSITY. HOWEVER...IT MAY STILL PRODUCE HAIL AND STRONG WIND GUSTS. OTHER HEAVY THUNDERSTORMS WERE SCATTERED OVER THE NORTHERN HALF OF THE STATE. THE STRONGEST STORM WAS INDICATED BETWEEN LEXINGTON AND SILVER CITY. THE STORMS IS NORTH MISSISSIPPI WERE DRIFTING TO THE NORTHWEST. ISOLATED STORMS OF LESSER INTENSITY WERE SHOWN IN SOUTHEAST MISSISSIPPI.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 1:31 AM CDT | Severe Thunderstorm Warning | JAN | Carroll | 29 min |
| Jun 21, 3:15 PM CDT | Severe Thunderstorm Warning | JAN | Madison | 45 min |
| Jun 21, 3:44 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Noxubee | 46 min |
| Jun 21, 6:59 PM CDT | Severe Thunderstorm Warning | JAN | Winston | 46 min |
Nearby
Severe Thunderstorm Warnings in Mississippi, 1990Every severe thunderstorm warning in 1990
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.