Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 82, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 22, 1990, 2:30 PM CDT for Issaquena County, Mississippi. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Apr 22, 1990, 2:30 PM CDT (19:30 UTC)
- Expired
- Apr 22, 1990, 3:00 PM CDT
- In force
- 30 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Issaquena 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, 7.5 hours before the alert went out and 97 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
- 1566 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 655 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 221931 SVRJAN MSC055-222000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE JACKSON MS 230 PM CDT SUN APR 22 1990 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 300 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN WEST CENTRAL MISSISSIPPI ...ISSAQUENA COUNTY AT 230 PM CDT...JACKSON RADAR WAS SHOWING A SEVERE THUNDERSTORM IN THE VICNITY OF FITLER, MISSISSIPPI. THIS THUNDERSTORM IS MOVING SOUTH- SOUTHEAST AT 10 MPH AND WILL BE MOVING THROUGH SOUTHERN ISSAQUENA COUNTY. SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. MOVE TO AN INTERIEOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. <
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, Apr 22, 11:39 AM CDT, 2 hours 51 minutes before
MSZ009-012-ALZ008-013-221800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 1135 AM CDT SUN APR 22 1990 SEVERE THUNDERSTORM WATCH NUMBER 140 WHICH INCLUDES LAUDERDALE... NEWTON...KEMPER...NESHOBA AND WINSTON COUNTIES IN EAST CENTRAL MISSISSIPPI IN EFFECT UNTIL 4 PM CDT. AT 1135 AM CDT MERIDIAN RADAR INDICATED SHOWERS AND THUNDERSTORMS DEVELOPING RAPIDLY ALONG AND SOUTH OF A LINE FROM JACKSON TO MERIDIAN MISSISSIPPI. COVERAGE AND INTENSITY INCREASED DURING THE PAST HOUR. LITTLE MOVEMENT WAS INDICATED. THUNDERSTORMS ARE EXPECTED TO CONTINUE TO INCREASE IN COVERAGE AND INTENSITY AND PERSONS IN AND CLOSE TO THE WATCH AREA SHOULD BE ALERT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS OR POSSIBLE WARNINGS. <<
Special weather statement, Apr 22, 11:41 AM CDT, 2 hours 49 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 1125 AM CDT SUN APR 22 1990 SEVERE THUNDERSTORM WATCH NUMBER 140 REMAINS IN EFFECT UNTIL 4:00 PM FOR PORTIONS OF CENTRAL AND WESTERN MISSISSIPPI. AT 1125 AM...ONE ISOLATED THUNDERSTORM WITH HEAVY RAINFALL WAS INDICATED IN THE DELTA 25 MILES SOUTHEAST OF GREENVILLE NEAR SILVER CITY. OTHERWISE...NUMEROUS THUNDERSTORMS AND SCATTERED LIGHT RAINSHOWERS BEGAN DEVELOPING OVER EAST CENTRAL AND SOUTHEAST MISSISSIPPI DURING THE PAST HOUR. OTHER ISOLATED THUNDERSTORMS AND LIGHT RAINSHOWERS WERE OCCURRING IN NORTHEAST LOUISIANA AND SOUTHEAST ARKANSAS. MOVEMENT WAS SOUTHEAST AT 10 MILES AN HOUR OR LESS.
Special weather statement, Apr 22, 12:32 PM CDT, 1 hour 58 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 1225 PM CDT SUN APR 22 1990 SEVERE THUNDERSTORM WATCH NUMBER 140 REMAINS IN EFFECT UNTIL 4:00 PM FOR PORTIONS OF CENTRAL AND WESTERN MISSISSIPPI. AT 1225 PM THUNDERSTORM ACTIVITY OVER CENTRAL AND SOUTHEAST MISSISSIPPI HAD INCREASED RAPIDLY. HEAVIEST THUNDERSTORMS WERE OCCURRING 15 MILES SOUTHEAST OF YAZOO CITY...15 MILE SOUTHEAST OF HOLLY BLUFF...NEAR LAUREL AND RALEIGH...AND SOUTH OF FOREST. WHILE THESE THUNDERSTORMS HAVE NOT REACHED SEVERE LIMITS...THEY ARE CAPABLE OF PRODUCING LOCALLY HEAVY RAIN..STRONG GUSTY WINDS...SMALL HAIL..AND CLOUD TO GROUND LIGHTNING. PERSONS IN THE PATH OF THESE THUNDERSTORMS SHOULD REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS. MOVEMENT WAS SOUTHEAST AT 15 MILES AN HOUR.
Special weather statement, Apr 22, 12:58 PM CDT, 1 hour 32 minutes before
MSZALL-221900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 1257 PM CDT SUN APR 22 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 140 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND WEST MISSISSIPPI UNTIL 4 PM CDT... AT 12:55 PM CDT...JACKSON RADAR WAS SHOWING AN AREA OF SCATTERED TO NUMEROUS THUNDERSTORMS IN A 40 MILE WIDE BAND WHICH STRETCHED FROM HOLLANDALE TO LEAKSVILLE. THE STRONGEST THUNDERSTORMS IN THIS AREA WERE LOCATED BETWEEN HOLLY BLUFF AND YAZOO CITY AND BETWEEN MAGEE AND LAUREL. ALL OF THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS ALONG WITH SMALL HAIL AND DANGEROUS LIGHTNING AS THEY MOVE SOUTHEAST AT 15 MPH.
Special weather statement, Apr 22, 1:45 PM CDT, 45 minutes before
MSZALL-221945- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 145 PM CDT SUN APR 22 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 140 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND WEST MISSISSIPPI UNTIL 4 PM CDT... ...SEVERE THUNDERSTORM WATCH NUMBER 141 REMAINS IN EFFECT FOR PORTIONS OF SOUTH MISSISSIPPI UNTIL 8 PM CDT... AT 1:30 PM CDT...JACKSON RADAR WAS CONTINUING TO SHOW AN AREA OF SCATTERED TO NUMEROUS THUNDERSTORMS IN A 40 MILE WIDE BAND WHICH STRETCHED FROM HOLLANDALE TO LEAKESVILLE. THE STRONGEST THUNDERSTORMS IN THIS AREA WERE BETWEEN HOLLY BLUFF AND FLORA AND BETWEEN MAGEE AND RICHTON. TO THE WEST OF THE STATE...A VERY STRONG THUNDERSTORM WAS LOCATED NEAR OAK GROVE IN LOUISIANA. ALL OF THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS ALONG WITH SMALL HAIL AND DANGEROUS LIGHTNING AS THEY MOVE SOUTHEAST AT 10 MPH. BOATERS ON BARNETT RESERVOIR SHOULD BE ALERT AS THE THUNDERSTORMS IN THE VICINTY OF FLORA SOULD BE AFFECTING THE RESERVOIR WITHIN THE NEXT HALF HOUR.
Special weather statement, Apr 22, 1:57 PM CDT, 33 minutes before
MSZALL-222045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 155 PM CDT SUN APR 22 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 140 REMAINS IN EFFECT FOR PORTIONS OF CENTRAL AND WEST MISSISSIPPI UNTIL 4 PM CDT... ...SEVERE THUNDERSTORM WATCH NUMBER 141 REMAINS IN EFFECT FOR PORTIONS OF SOUTH MISSISSIPPI UNTIL 8 PM CDT... AT 1:50 PM CDT...JACKSON RADAR WAS CONTINUING TO SHOW AN AREA OF SCATTERED TO NUMEROUS THUNDERSTORMS IN A 40 MILE WIDE BAND WHICH STRETCHED FROM HOLLANDALE TO LEAKESVILLE. THE STRONGEST THUNDERSTORMS IN THIS AREA WERE BETWEEN HOLLY BLUFF AND FLORA AND BETWEEN MAGEE AND RICHTON. TO THE WEST OF THE STATE...A VERY STRONG THUNDERSTORM WAS LOCATED NEAR LAKE PROVIDENCE IN LOUISIANA. ALL OF THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING STRONG GUSTY WINDS ALONG WITH SMALL HAIL AND DANGEROUS LIGHTNING AS THEY MOVE SOUTHEAST AT 10 MPH. BOATERS ON BARNETT RESERVOIR SHOULD BE ALERT AS THE THUNDERSTOR"MS IN THE VICINTY OF FLORA SOULD BE AFFECTING THE RESERVOIR SHORTLY.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 12:50 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 55 min |
| Apr 22, 1:04 PM CDT | Severe Thunderstorm Warning | JAN | Jasper | 116 min |
| Apr 22, 2:03 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena | 27 min |
| Apr 22, 3:34 PM CDT | Severe Thunderstorm Warning | JAN | Warren | 26 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.