Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 200, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Aug 22, 1990, 4:28 PM CDT for Wayne County, Mississippi. It was in force for 32 min.
The area
The counties it named.
The facts
- Issued
- Aug 22, 1990, 4:28 PM CDT (21:28 UTC)
- Expired
- Aug 22, 1990, 5:00 PM CDT
- In force
- 32 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Wayne 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, 9.5 hours before the alert went out and 151 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
- 1598 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 16 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, Aug 22, 2:38 PM CDT, 1 hour 50 minutes before
MSZ009-012-ALZ008-013-222145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 238 PM CDT WED AUG 22 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 670 IS IN EFFECT UNTIL 800 PM FOR NEWTON...LAUDERDALE...JASPER...CLARKE...JONES AND WAYNE COUNTIES IN EAST CENTRAL MISSISSIPPI AND CHOCTAW COUNTY IN WEST CENTRAL ALABAMA... AT 230 PM CDT NATIONAL WEATHER SERVICE RADAR IN MERIDIAN INDICATED SCATTERED THUNDERSTORMS ALONG AND SOUTHWEST OF A LINE SELMA ALABAMA TO COLUMBUS TO GREENWOOD MISSISSIPPI. THE STRONGEST STORM WAS LOCATED IN NORTHERN CLARKE COUNTY. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 15 MPH. THESE THUNDERSTORMS WILL PRODUCE HEAVY DOWNPOURS...GUSTY WINDS...DEADLY L^IGHTNING AND HAIL. IF YOU ARE IN OR CLOSE TO THE WATCH AREA YOU SHOULD REMAIN WEATHER ALERT AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
Special weather statement, Aug 22, 3:45 PM CDT, 43 minutes before
MSZ009-012-ALZ008-013-222230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 338 PM CDT WED AUG 22 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 670 IS IN EFFECT UNTIL 800 PM INCLUDING NEWTON...LAUDERDALE...JASPER...CLARKE...JONES AND WAYNE COUNTIES IN EAST CENTRAL MISSISSIPPI AND CHOCTAW COUNTY IN WEST CENTRAL ALABAMA... AT 330 PM CDT NATIONAL WEATHER SERVICE RADAR IN MERIDIAN INDICATED SCATTERED THUNDERSTORMS ALONG AND SOUTHWEST OF A LINE MONTGOMERY ALABAMA TO MACON TO ROLLING FORK MISSISSIPPI. STRONGEST STORM WAS LOCATED IN CLARKE COUNTY BETWEEN PACHUTA AND QUITMAN. THE THUNDERSTORMS WERE MOVING SOUTHEAST AT 15 MPH. THESE THUNDERSTORMS WILL PRODUCE HEAVY DOWNPOURS...GUSTY WINDS...DEADLY LIGHTNING AND HAIL. IF YOU ARE IN OR CLOSE TO THE WATCH AREA YOU SHOULD REMAIN WEATHER ALERT AND LISTEN FOR LATER STATEMENTS.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 4:40 PM CDT | Severe Thunderstorm Warning | JAN | Jones | 35 min |
| Aug 22, 6:50 PM CDT | Severe Thunderstorm Warning | JAN | Simpson | 25 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.