Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 151, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jun 21, 1990, 3:44 PM CDT for Kemper County, Noxubee County, Mississippi. It was in force for 46 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
- Jun 21, 1990, 3:44 PM CDT (20:44 UTC)
- Expired
- Jun 21, 1990, 4:30 PM CDT
- In force
- 46 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Kemper County, MS, Noxubee 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 |
|---|---|---|---|
| Jun 21, 4:00 PM CDT | Hail 0.75 | Noxubee, 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
Centreville/Bibb, AL (KCKL), launched 12:00Z, 8.7 hours before the alert went out and 131 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
- 1904 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1025 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- -10 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 KMEI 212045 SVRMEI MSC069-103-212130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MERIDIAN MS 344 PM CDT THU JUN 21 1990 THE NATIONAL WEATHER SERVICE IN MERIDIAN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSISSIPPI ...KEMPER COUNTY...NOXUBEE COUNTY AT 344 PM CDT RADAR SHOWED A CLUSTER OF SEVERE THUNDERSTORMS ON THE KEMPER/NOXUBEE COUNTY LINE 12 MILES SOUTH OF MACON. THEY WERE MOVING EAST AT 15 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
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, 10:01 AM CDT, 5 hours 43 minutes before
MSZALL-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 940 AM CDT THU JUN 21 1990 ...HEAT INDEX VALUES BETWEEN 105 AND 115 EXPECTED ACROSS MISSISSIPPI THIS AFTERNOON... HOT AND HUMID WEATHER WILL CONTINUE OVER MISSISSIPPI TODAY AS AN UPPER LEVEL HIGH PRESSURE RIDGE PERSISTS OVER THE REGION. WITH DEWPOINTS ALREADY IN THE UPPER 70S THIS MORNING...RELATIVE HUMIDITY OVER THE STATE WILL FORCE HEAT INDEX VALUES TO 105 TO 115 DEGREES BY THE AFTERNOON. HIGH HUMIDITY DECREASES THE COOLING EFFECTS OF PERSPIRATION ON THE SKIN. THEREFORE...THE COMBINATION OF TEMPERATURES IN THE UPPER 90S AND HIGH HUMIDITY WILL FEEL LIKE 105 TO 115 DEGREES. PLEASE FOLLOW HOT WEATHER SAFETY RULES. CHECK ON THE ELDERLY...DRINK PLENTY OF WATER...USE COMMON SENSE AND DO NOT OVER DO IT.
Special weather statement, Jun 21, 2:15 PM CDT, 1 hour 29 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, 59 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, 31 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.
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, 4:58 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys | 62 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.