Alert archive / Mississippi / Tornado Warnings in 1991
Tornado Warning 20, NWS Jackson, MS
NWS Jackson, MS issued this tornado warning at Apr 28, 1991, 2:50 PM CDT for Copiah County, Mississippi. It was in force for 40 min.
The area
The counties it named.
The facts
- Issued
- Apr 28, 1991, 2:50 PM CDT (19:50 UTC)
- Expired
- Apr 28, 1991, 3:30 PM CDT
- In force
- 40 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Copiah County, MS
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 7.8 hours before the alert went out and 61 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
- 1442 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 718 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 187 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 7.2
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 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, Apr 28, 12:32 PM CDT, 2 hours 18 minutes before
MSZALL-281830- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 1225 PM CDT SUN APR 28 1991 SCATTERED STRONG THUNDERSTORMS CONTINUED OVER PARTS OF CENTRAL MISSISSIPPI AT 1225 PM. THE STRONGER STORMS WERE OVER HINDS...LAWRENCE ...LEAKE AND SMITH COUNTIES. THESE STRONG STORMS WILL LIKELY BE ACCOMPANIED BY BRIEF VERY HEAVY RAIN ...GUSTY WINDS IN EXCESS OF 40 MILES AN HOUR...FREQUENT CLOUD TO GROUND LIGHTNING AND SMALL HAIL AS THEY MOVE EAST AT 20 TO 25 MILES AN HOUR. ELSEWHERE PATCHES OF RAIN AND ISOLATED THUNDERSTORMS WERE OVER MUCH OF SOUTH AND EAST MISSISSIPPI.
Special weather statement, Apr 28, 1:26 PM CDT, 1 hour 24 minutes before
MSZALL-281930- SEVERE WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 120 PM CDT SUN APR 28 1991 SCATTERED STRONG THUNDERSTORMS CONTINUED OVER PARTS OF CENTRAL MISSISSIPPI AT 115 PM. THE STRONGER STORMS WERE OVER SIMPSON...MADISON AND EASTERN LEAKE COUNTIES. A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 13- PM CDT FOR LEAKE COUNTY. LARGE HAIL HAS BEEN REPORTED WITH THIS STORM IN LEAKE COUNTY DURING THE PAST 30 MINUTES. VERY HEAVY RAIN...STRONG GUSTY WINDS AND HAIL ARE POSSIBLE WITH THESE STRONG STORMS AS THEY MOVE TO THE EAST AT 30 MILES AN HOUR. ELSEWHERE PATCHES OF LIGHT RAIN AND ISOLATED THUNDERSTORMS CONTINUED OVER MUCH OF SOUT AND EAST MISSISSIPPI.
Local storm report, Apr 28, 1:27 PM CDT, 1 hour 23 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
125 PM CDT SUN APR 28 1991
110 PM...LAUDERDALE S.O. REPORTS TREES DOWN NEAR COLLINSVILLE AND DUFFY
IN NORTHWEST LAUDERDALE COUNTY.Local storm report, Apr 28, 1:34 PM CDT, 1 hour 16 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
133 PM CDT SUN APR 28 1991
125 PM...LAUDERDALE CIVIL DEFENSE REPORTS NICKEL SIZE HAIL AT WEST
LAUDERDALE SCHOOL.Local storm report, Apr 28, 1:39 PM CDT, 1 hour 11 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
138 PM CDT SUN APR 28 1991
135 PM...PHILADELPHIA P.D. REPORTS DIME SIZE HAIL IN CITY.
134 PM...NESHOBA C.D. REPORTS DIME SIZE HAIL 1 MILE NORTH OF
PHILDELPHIA.Special weather statement, Apr 28, 2:23 PM CDT, 27 minutes before
MSZALL-282030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 222 PM CDT SUN APR 28 1991 TORNADO WATCH NUMBER 223 REMAINS IN EFFECT UNTIL 900 PM CDT FOR MOST OF THE SOUTHERN TWO THIRDS OF MISSISSIPPI. THE WATCH AREA COVERS ALL OF THE STATE ALONG AND SOUTH OF A LINE FROM ROLLING FORK TO YAZOO CITY TO PHILADELPHIA. AT 215 PM CDT JACKSON RADAR INDICATED VERY STRONG STORMS IN CENTRAL MISSISSIPPI OVER YAZOO AND SHARKEY COUNTIES...AND IN SOUTH MISSISSIPPI OVER FRANKLIN...LINCOLN AND LAWRENCE COUNTIES. THESE STORMS CONTINUE TO INCREASE IN INTENSITY...AND WILL BE ACCOMPANIED BY STRONG GUSTY WINDS IN EXCESS OF 45 MILES AN HOUR...BRIEF TORRENTIAL RAIN...FREQUENT CLOUD TO GROUND LIGHTNINGT AND HAIL AS THEY MOVE TO THE NORTHEAST AT 30 MILES AN HOUR. ELSEHWERE PATCHES OF LIGHT RAIN AND WIDELY SCATTERED THUNDERSTORMS CONTINUED OVER MUCH OF CENTRAL AND SOUTH MISSISSIPPI.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 9:29 PM CDT | Severe Thunderstorm Warning | JAN | Sunflower, Washington | 46 min |
| Apr 27, 10:01 PM CDT | Severe Thunderstorm Warning | JAN | Leflore, Tallahatchie | 44 min |
| Apr 27, 10:21 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys | 54 min |
| Apr 27, 10:42 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena, Sharkey | 48 min |
| Apr 27, 10:47 PM CDT | Severe Thunderstorm Warning | JAN | Holmes | 43 min |
| Apr 27, 11:07 PM CDT | Severe Thunderstorm Warning | JAN | Attala | 53 min |
| Apr 27, 11:25 PM CDT | Severe Thunderstorm Warning | JAN | Humphreys, Yazoo | 35 min |
| Apr 27, 11:45 PM CDT | Tornado Warning | JAN | Grenada | 30 min |
| Apr 27, 11:49 PM CDT | Severe Thunderstorm Warning | JAN | Winston | 56 min |
| Apr 28, 12:01 AM CDT | Severe Thunderstorm Warning | JAN | Choctaw, Webster | 29 min |
| Apr 28, 3:11 AM CDT | Severe Thunderstorm Warning | JAN | Bolivar | 49 min |
| Apr 28, 3:30 AM CDT | Severe Thunderstorm Warning | JAN | Adams, Jefferson | 30 min |
| Apr 28, 4:11 AM CDT | Severe Thunderstorm Warning | JAN | Bolivar, Washington | 64 min |
| Apr 28, 5:08 AM CDT | Severe Thunderstorm Warning | JAN | Sunflower | 52 min |
| Apr 28, 5:16 AM CDT | Flash Flood Warning | JAN | Bolivar, Washington | 3 hr |
| Apr 28, 6:49 AM CDT | Severe Thunderstorm Warning | JAN | Carroll, Grenada | 41 min |
| Apr 28, 6:56 AM CDT | Severe Thunderstorm Warning | JAN | Holmes | 34 min |
| Apr 28, 7:12 AM CDT | Severe Thunderstorm Warning | JAN | Attala, Montgomery | 48 min |
| Apr 28, 7:47 AM CDT | Severe Thunderstorm Warning | JAN | Calhoun, Choctaw, Webster | 43 min |
| Apr 28, 7:52 AM CDT | Severe Thunderstorm Warning | JAN | Winston | 68 min |
| Apr 28, 8:01 AM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 44 min |
| Apr 28, 8:10 AM CDT | Severe Thunderstorm Warning | JAN | Neshoba | 65 min |
| Apr 28, 8:55 AM CDT | Severe Thunderstorm Warning | JAN | Noxubee | 65 min |
| Apr 28, 8:58 AM CDT | Severe Thunderstorm Warning | JAN | Winston | 32 min |
| Apr 28, 9:36 AM CDT | Flash Flood Warning | JAN | Hinds, Warren | 3 hr |
| Apr 28, 10:00 AM CDT | Severe Thunderstorm Warning | JAN | Neshoba | 30 min |
| Apr 28, 10:32 AM CDT | Severe Thunderstorm Warning | JAN | Kemper, Lauderdale | 43 min |
| Apr 28, 10:32 AM CDT | Severe Thunderstorm Warning | JAN | Noxubee | 43 min |
| Apr 28, 12:00 PM CDT | Flash Flood Warning | JAN | Hinds | 60 min |
| Apr 28, 12:38 PM CDT | Severe Thunderstorm Warning | JAN | Leake, Scott | 52 min |
| Apr 28, 12:58 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 47 min |
| Apr 28, 1:12 PM CDT | Severe Thunderstorm Warning | JAN | Neshoba | 63 min |
| Apr 28, 1:38 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 52 min |
| Apr 28, 1:46 PM CDT | Severe Thunderstorm Warning | JAN | Issaquena, Sharkey | 44 min |
| Apr 28, 1:46 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 44 min |
| Apr 28, 2:06 PM CDT | Severe Thunderstorm Warning | JAN | Newton | 39 min |
| Apr 28, 2:17 PM CDT | Tornado Warning | JAN | Lauderdale | 43 min |
| Apr 28, 2:31 PM CDT | Severe Thunderstorm Warning | JAN | Copiah, Lincoln | 44 min |
| Apr 28, 3:10 PM CDT | Severe Thunderstorm Warning | JAN | Lawrence | 50 min |
| Apr 28, 3:22 PM CDT | Severe Thunderstorm Warning | JAN | Simpson | 53 min |
| Apr 28, 3:35 PM CDT | Tornado Warning | JAN | Copiah | 10 min |
| Apr 28, 3:35 PM CDT | Tornado Warning | JAN | Hinds | 40 min |
| Apr 28, 3:38 PM CDT | Severe Thunderstorm Warning | JAN | Attala | 52 min |
| Apr 28, 3:56 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Montgomery | 49 min |
| Apr 28, 4:35 PM CDT | Severe Thunderstorm Warning | JAN | Adams, Jefferson | 50 min |
| Apr 28, 4:43 PM CDT | Severe Thunderstorm Warning | JAN | Pike | 32 min |
| Apr 28, 5:15 PM CDT | Severe Thunderstorm Warning | JAN | Carroll, Montgomery | 45 min |
| Apr 28, 5:15 PM CDT | Severe Thunderstorm Warning | JAN | Webster | 45 min |
| Apr 28, 5:19 PM CDT | Severe Thunderstorm Warning | JAN | Claiborne | 26 min |
| Apr 28, 5:25 PM CDT | Severe Thunderstorm Warning | JAN | Leflore | 35 min |
| Apr 28, 5:36 PM CDT | Severe Thunderstorm Warning | JAN | Warren | 39 min |
| Apr 28, 5:40 PM CDT | Severe Thunderstorm Warning | JAN | Bolivar, Sunflower, Washington | 50 min |
| Apr 28, 5:46 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 44 min |
| Apr 28, 5:56 PM CDT | Severe Thunderstorm Warning | JAN | Newton | 49 min |
| Apr 28, 6:01 PM CDT | Severe Thunderstorm Warning | JAN | Wilkinson | 44 min |
| Apr 28, 6:11 PM CDT | Severe Thunderstorm Warning | JAN | Grenada, Leflore, Tallahatchie | 49 min |
| Apr 28, 6:20 PM CDT | Tornado Warning | JAN | Neshoba | 25 min |
| Apr 28, 6:27 PM CDT | Severe Thunderstorm Warning | JAN | Amite | 48 min |
| Apr 28, 6:44 PM CDT | Flash Flood Warning | JAN | Bolivar, Sunflower, Washington | 2 hr |
| Apr 28, 11:01 AM CDT | Severe Thunderstorm Warning | JAN | Sumter | 44 min |
| Apr 28, 2:33 PM CDT | Severe Thunderstorm Warning | JAN | Sumter | 42 min |
| Apr 28, 2:44 PM CDT | Tornado Warning | JAN | Sumter | 46 min |
Nearby
Tornado Warnings in Mississippi, 1991Every tornado warning in 1991Tornadoes in 1991
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.