Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 76, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 1, 1990, 2:20 PM CDT for Kemper County, Mississippi. It was in force for 25 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
- Apr 1, 1990, 2:20 PM CDT (19:20 UTC)
- Expired
- Apr 1, 1990, 2:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Kemper 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 |
|---|---|---|---|
| Apr 1, 2:30 PM CDT | Hail 1.75 | Kemper, 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, 7.3 hours before the alert went out and 136 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
- 667 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 840 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMEI 011923 SVRMEI MSC069-011945- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MERIDIAN MS 220 PM CDT SUN APR 1 1990 THE NATIONAL WEATHER SERVICE IN MERIDIAN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 245 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSISSIPPI ...KEMPER COUNTY AT 220 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTH WEST OF DEKALB MOVING TO THE EAST AT 30 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.8 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, Apr 1, 11:41 AM CDT, 2 hours 39 minutes before
MSZALL-011740- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 1140 AM CDT SUN APR 1 1990 ...STRONG THUNDERSTORMS OVER WEST-CENTRAL MISSISSIPPI... AT 1135 AM CDT...SEVERAL STRONG THUNDERSTORMS WERE INDICATED OVER WEST-CENTRAL MISSISSIPPI GENERALLY NORTHWEST OF YAZOO CITY. THE STRONGEST OF THESE STORMS WERE OVER SOUTHERN WASHINGTON COUNTY NEAR HOLLANDALE...AND OVER SOUTHERN HUMPREYS COUNTY SOUTH OF SILVER CITY. THESE STORMS WERE JUST BELOW SEVERE LIMITS...AND WERE PRODUCING HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING...AND SMALL HAIL. IF ANY OF THESE STORMS SHOW A SLIGHT INCREASE IN INTENSITY SOON... SEVERE THUNDERSTORM WARNINGS WILL BECOME NECESSARY. yANOTHER STRONG THUNDERSTORMS CONTINUED OVER NORTHEAST LOUISIANA 20 MILES WEST OF LAKE PROVIDENCE. MOVEMENT WAS EAST AT 35 MILES AN HOUR.
Special weather statement, Apr 1, 12:44 PM CDT, 1 hour 36 minutes before
MSZALL-011840- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 1240 PM CDT SUN APR 1 1990 ...STRONG THUNDERSTORMS CONTINUE OVER WEST-CENTRAL MISSISSIPPI... AT 1235 PM CDT...STRONG THUNDERSTORMS CONTINUED TO DEVELOP OVER WEST-CENTRAL MISSISSIPPI. THE STORMS WERE ALONG A LINE GENERALLY FROM LAKE PROVIDENCE LOUISIANA TO HOLLY BLUFF TO NEAR PICKENS. A SEVERE THUNDERSTORM WAS LOCATED ABOUT 10 MILES SOUTH OF LEXINGTON AND WAS MOVING EAST AT 30 MPH. DAMAGING HAIL IS POSSIBLE WITH THESE STORMS. THEY HAVE PRODUCED HAIL... GUSTY WIND...HEAVY RAIN AND FREQUENT LIGHTNING. GENERAL STORM MOVEMENT WAS EAST AT 30 MILES AN HOUR.
Special weather statement, Apr 1, 1:23 PM CDT, 57 minutes before
MSZALL-011900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 115 PM CDT SUN APR 1 1990 ...THUNDERSTORMS CONTINUE OVER CENTRAL MISSISSIPPI... AT 103 PM CDT...A LINE OF THUNDERSTORMS WAS LOCATED ACROSS CENTRAL MISSISSIPPI FROM HOLLY BLUFF TO DURANT TO WALNUT GROVE AND HAD GENERALLY DECREASED IN INTENSITY. THE STRONGEST THUNDERSTORM WAS INDICATED ABOUT 10 MILES SOUTHEAST OF YAZOO CITY. THESE STORMS MAY STILL PRODUCE GUSTY WIND...HEAVY RAIN...HAIL AND DANGEROUS LIGHTNING. STORM MOVEMENT WAS EAST AT 30 MILES AN HOUR.
Special weather statement, Apr 1, 1:43 PM CDT, 37 minutes before
MSZALL-011930- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 140 PM CDT SUN APR 1 1990 ...THUNDERSTORMS OVER CENTRAL MISSISSIPPI... AT 128 PM CDT...A LINE OF THUNDERSTORMS WAS INDICATED FROM VICKSBURG TO 20 MILES SOUTHWEST OF LOUISVILLE. THUNDERSTORM MOVEMENT WAS GENERALLY TO THE EAST ABOUT 35 MILES AN HOUR. THESE THUNDERSTORMS MAY PRODUCE GUSTY WIND...HEAVY RAIN...HAIL AND DANGEROUS LIGHTNING. A LARGE AREA OF RAIN WAS ALSO LOCATED OVER CENTRAL MISSISSIPPI AND EXTENDED FROM GREENVILLE TO GRENADA TO MERIDIAN TO WISNER LOUISIANA.
Local storm report, Apr 1, 2:08 PM CDT, 12 minutes before
STORM REPORTS NATIONAL WEATHER SERVICE JACKSON MS 200 PM CDT SUN APR 1 1990 1130 AM...PEA SIZE HAIL AT HOLLANDALE (WASHINGTON CO).
Special weather statement, Apr 1, 2:16 PM CDT, 4 minutes before
MSZALL-012000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 215 PM CDT SUN APR 1 1990 ...THUNDERSTORMS RAPIDLY DECREASING... AT 205 PM CDT...SCATTERED THUNDERSTORMS WERE OCCURRING IN A LARGE AREA OF RAIN OVER CENTRAL MISSISSIPPI. THE STRONGEST THUNDERSTORM WAS LOCATED NEAR CARTHAGE AND WAS CONTINUING TO WEAKEN. THESE THUNDERSTORMS WERE PRODUCING GUSTY WIND OVER MUCH OF CENTRAL MISSISSIPPI WITH GUSTS TO 40 MILES AN HOUR REPORT!ED AT SOME LOCATIONS. THE WEAKENING STORMS MAY STILL PRODUCE LIGHTNING...GUSTY WIND...HEAVY RAIN AND SMALL HAIL OVER CENTRAL MISSISSIPPI THIS AFTERNOON.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 12:05 PM CDT | Severe Thunderstorm Warning | JAN | Yazoo | 40 min |
| Apr 1, 12:22 PM CDT | Severe Thunderstorm Warning | JAN | Holmes | 38 min |
| Apr 1, 12:45 PM CDT | Severe Thunderstorm Warning | JAN | Hinds | 20 min |
| Apr 1, 2:49 PM CDT | Severe Thunderstorm Warning | JAN | Kemper | 26 min |
| Apr 1, 2:52 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 53 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.