Alert archive / Mississippi / Tornado Warnings in 1990
Tornado Warning 58, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Dec 21, 1990, 3:25 PM CST for Holmes County, Leflore County, Mississippi. It was in force for 35 min.
The area
The counties it named.
The facts
- Issued
- Dec 21, 1990, 3:25 PM CST (21:25 UTC)
- Expired
- Dec 21, 1990, 4:00 PM CST
- In force
- 35 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Holmes County, MS, Leflore 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, 9.4 hours before the alert went out and 114 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
- 572 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 685 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 248 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KJAN 212125 TORJAN MSC051-083-212200- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSON MS 325 PM CST FRI DEC 21 1990 THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 400 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN CENTRAL MISSISSIPPI ...NORTHWESTERN HOLMES COUNTY IN NORTH CENTRAL MISSISSIPPI ...LEFLORE COUNTY AT 325 PM CST...TWO POSSIBLE TORNADOES WERE BEING DETECTED BY JACKSON RADAR. THE LEADING STORM WAS NORTH OF BELZONI HEADING TOWARDS GREENWOOD. SEVERAL FUNNEL CLOUDS HAVE BEEN REPORTED WITH THIS STORM. THE SECOND POSSIBLE TORNADO WAS NEAR SILVER CITY...MOVING TOWARDS BELZONI AND PARTS OF NORTHWEST HOfLMES COUNTY. MOVEMENT WAS NORTHEAST AT 40 MILES AN HOUR. SEEK SHELTER IN AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR APARTMENT. AVOID WINDOWS AND PROTECT YOUR HEAD FROM FLYING DEBRIS WITH CUSHIONS OR PILLOWS. <
What forecasters said that day
The local office's own words before this tornado 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, Dec 21, 12:01 PM CST, 3 hours 24 minutes before
MSZALL-220000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS NOON CST FRI DEC 21 1990 ...SEVERE WEATHER...INCLUDING TORNADOES...POSSIBLE AGAIN THIS AFTERNOON AND TONIGHT ACROSS MISSIS
Special weather statement, Dec 21, 12:03 PM CST, 3 hours 22 minutes before
MSZALL-220000- SPECIAL WEATHER STATEMENT ...CORRECTED... NATIONAL WEATHER SERVICE JACKSON MS NOON CST FRI DEC 21 1990 ...SEVERE WEATHER...INCLUDING TORNADOES...POSSIBLE AGAIN THIS AFTERNOON AND TONIGHT ACROSS MISSISSIPPI... ...FLASH FLOOD WATCH IN EFFECT THIS AFTERNOON FOR NORTHERN THIRD OF MISSISSIPPI... ...ARCTIC AIR MASS TO ENTER NORTHWEST MISSISSIPPI TONIGHT AND ALL BUT EXTREME SOUTHEAST MISSISSIPPI ON SATURDAY... AN EXPLOSIVE SEVERE WEATHER SITUATION IS SETTING UP OVER MISSISSIPPI AS NEAR RECORD HIGH TEMPERATURES ARE CREATING VERY UNSTABLE CONDITIONS OVER THE AREA. STRONG WINDS IN THE UPPER-LEVELS OF THE ATMOSPHERE AND SEVERAL STRONG UPPER-LEVEL DISTURBANCES WILL FURTHER ENHANCE THE SEVERE WEATHER POTENTIAL BY THIS AFTERNOON. SEVERE WEATHER WAS ALREADY BREAKING OUT OVER LOUISIANA AND WILL LIKELY MOVE INTO SECTIONS OF AT LEAST WESTERN MISSISSIPPI THIS AFTERNOON. TORNADOES ARE A STRONG POSSIBILITY AS THIS WEATHER SYSTEM APPROACHES FROM THE WEST. PARTS OF NORTHERN MISSISSIPPI RECEIVED HEAVY RAINS YESTERDAY AND WITH THE THREAT OF MORE HEAVY RAINS THIS AFTERNOON...A FLASH FLOOD WATCH REMAINS IN EFFECT FOR THE NORTHERN THIRD OF THE STATE. A VERY COLD ARCTIC AIR MASS CONTINUES TO SLIDE SOUTHEASTWARD INTO NORTHWESTERN ARKANSAS AND NORTHEASTERN TEXAS EARLY THIS AFTERNOON. THIS AIR MASS IS NOW EXPECTED TO ENTER SECTIONS OF NORTHWEST MISSISSIPPI LATE TONIGHT...AND ALL BUT PERHAPS EXTREME SOUTHEAST MISSISSIPPI DURING THE DAY SATURDAY. TEMPERATURES WILL DROP SHARPLY INTO THE 30S AND 40S AS THE ARCTIC FRONT PLOWS THROUGH THE STATE. LINGERING PRECIPITATION SATURDAY AFTERNOON INTO SUNDAY WILL PROBABLY BE IN THE FORM OF FREEZING RAIN AND DRIZZLE. AT THIS TIME...THIS FREEZING PRECIPITATION IS EXPECTED TO BE PATCHY...BUT COULD STILL MAKE TRAVELING DIFFICULT DURING THE UPCOMING CHRISTMAS WEEKEND. THOSE PLANNING TRIPS THIS WEEKEND ARE ADVISED TO KEEP UP WITH THE LASTEST FORECASTS AND STATEMEDNTS.
Special weather statement, Dec 21, 3:10 PM CST, 15 minutes before
MSZ009-012-ALZ008-013-212300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 310 PM CST FRI DEC 21 1990 TORNADO WATCH NUMBER 784 REMAINS IN EFFECT UNTIL 900 PM CST AND INCLUDES THE FOLLOWING COUNTIES IN EAST CENTRAL MISSISSIPPI...JASPER...NESHOBA... NEWTON...WINSTON...JONES. AT 300 PM CST RADAR INDICATED AN AREA OF SCATTERED THUNDERSTORMS ALONG AND WEST OF A LINE FROM NEAR VICKSBURG TO NEAR UNION TO NEAR LOUISVILLE MIQSSISSIPPI. THESE THUNDERSTORMS WERE MOVING NORTHEAST AT 30 MPH.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 1:01 PM CST | Tornado Warning | JAN | Holmes, Yazoo | 44 min |
| Dec 21, 1:32 PM CST | Severe Thunderstorm Warning | JAN | Washington | 28 min |
| Dec 21, 1:44 PM CST | Tornado Warning | JAN | Carroll | 31 min |
| Dec 21, 1:55 PM CST | Tornado Warning | JAN | Washington | 35 min |
| Dec 21, 2:00 PM CST | Tornado Warning | JAN | Sharkey | 30 min |
| Dec 21, 2:07 PM CST | Tornado Warning | JAN | Claiborne, Warren | 53 min |
| Dec 21, 2:18 PM CST | Tornado Warning | JAN | Grenada, Montgomery | 42 min |
| Dec 21, 2:31 PM CST | Severe Thunderstorm Warning | JAN | Sunflower | 29 min |
| Dec 21, 2:44 PM CST | Tornado Warning | JAN | Calhoun, Yalobusha | 31 min |
| Dec 21, 2:45 PM CST | Severe Thunderstorm Warning | JAN | Leflore, Tallahatchie | 30 min |
| Dec 21, 2:51 PM CST | Severe Thunderstorm Warning | JAN | Humphreys | 39 min |
| Dec 21, 3:00 PM CST | Tornado Warning | JAN | Warren, Yazoo | 45 min |
| Dec 21, 3:10 PM CST | Tornado Warning | JAN | Humphreys | 35 min |
| Dec 21, 3:46 PM CST | Severe Thunderstorm Warning | JAN | Yazoo | 44 min |
| Dec 21, 3:46 PM CST | Tornado Warning | JAN | Holmes | 44 min |
| Dec 21, 3:55 PM CST | Tornado Warning | JAN | Carroll, Grenada | 50 min |
| Dec 21, 4:02 PM CST | Tornado Warning | JAN | Issaquena | 13 min |
| Dec 21, 4:16 PM CST | Severe Thunderstorm Warning | JAN | Sharkey, Washington | 29 min |
| Dec 21, 4:25 PM CST | Tornado Warning | JAN | Issaquena, Sharkey, Warren | 50 min |
| Dec 21, 4:26 PM CST | Tornado Warning | JAN | Claiborne, Jefferson | 49 min |
| Dec 21, 4:32 PM CST | Tornado Warning | JAN | Holmes | 43 min |
| Dec 21, 4:47 PM CST | Tornado Warning | JAN | Calhoun, Grenada | 43 min |
| Dec 21, 4:52 PM CST | Tornado Warning | JAN | Humphreys, Sunflower | 53 min |
| Dec 21, 4:59 PM CST | Tornado Warning | JAN | Warren | 46 min |
| Dec 21, 5:07 PM CST | Tornado Warning | JAN | Attala, Carroll, Montgomery | 53 min |
| Dec 21, 5:36 PM CST | Tornado Warning | JAN | Calhoun, Webster | 54 min |
| Dec 21, 5:41 PM CST | Tornado Warning | JAN | Carroll | 49 min |
| Dec 21, 5:46 PM CST | Tornado Warning | JAN | Warren | 44 min |
Nearby
Tornado Warnings in Mississippi, 1990Every tornado warning in 1990Tornadoes 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.