Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 87, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Apr 27, 1990, 7:09 PM CDT for Jasper County, Newton County, Mississippi. It was in force for 51 min. 2 reports 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 27, 1990, 7:09 PM CDT (00:09 UTC)
- Expired
- Apr 27, 1990, 8:00 PM CDT
- In force
- 51 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
Counties Jasper County, MS, Newton 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 27, 7:25 PM CDT | Thunderstorm Wind 0 | Newton, MS | |
| Apr 27, 7:30 PM CDT | Thunderstorm Wind 0 | Jasper, 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
Jackson, MS (KJAN), launched 00:00Z, 0.2 hours before the alert went out and 91 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 736 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMEI 280010 SVRMEI MSC061-101-280100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MERIDIAN MS 709 PM CDT FRI APR 27 1990 THE NATIONAL WEATHER SERVICE IN MERIDIAN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 800 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSISSIPPI ...JASPER COUNTY...NEWTON COUNTY AT 705 PM CDT MERIDIAN WEATHER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM NEAR UNION TO NEWTON TO CENTRAL JASPER COUNTY. THIS LINE WAS MOVING EAST AT 30 MPH. THESE THUNDERSTORMS HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...D.EADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. 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 27, 5:46 PM CDT, 1 hour 23 minutes before
MSZALL-272330- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 545 PM CDT FRI APR 27 1990 ...FLASH FLOOD WARNING FOR HINDS COUNTY HAS EXPIRED ...TORNADO WATCH NO. 170 REMAINS IN EFFECT FOR THE EASTERN HALF OF MISSISSIPPI EXCEPT EXTREME NORTHEAST A LARGE AREA OF RAIN AND EMBEDDED THUNDERSTORMS WAS OCCURRING FROM GREENVILLE TO POPLARVILLE TO LEAKESVILLE TO ACKERMAN. A LINE OF THUNDERSTORMS WAS INDICATED FROM KOSCIUSKO TO COLUMBIA. THE STRONGEST STORM WAS IN LEAKE COUNTY JUST EAST OF CARTHAGE. THUNDERSTORM MOVEMENT WAS TO THE NORTH AT 25 MPH. RAIN AND THUNDERSTORMS WILL CONTINUE EASTWARD TONIGHT AS THE FIRST WEATHER DISTURBANCE MOVES THROUGH. THUNDERST ORMS WILL REDEVELOP LATE TONIGHT OR EARLY SATURDAY MORNING AS A COLD FRONT APPROACHES FROM THE WEST.
Special weather statement, Apr 27, 6:02 PM CDT, 1 hour 7 minutes before
MSZALL-280000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 600 PM CDT FRI APR 27 1990 ...TORNADO WATCH NO. 170 REMAINS IN EFFECT FOR THE EASTERN HALF OF MISSISSIPPI EXCEPT EXTREME NORTHEAST A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM KOSCIUSKO TO COLUMBIA AND CONTIUED TO EDGE SLOWLY TO THE EAST. SEVERAL STRONG THUNDERSTORMS WERE OCCURRING IN THIS LINE. ONE OF THE STRONGEST WAS IN SCOTT COUNTY ABOUT 20 MILES NORTHEAST OF FORREST. HEAVY RAIN AND DANGEROUS LIGHTNING ARE LIKELY WITH THESE STORMS AND DAMAGING WIND AND HAIL ARE POSSIBLE. PEOPLE IN EASTERN MISSISSIPPI SHOULD REMAIN ALERT TO CHANGING WEATHER CONDITIONS AND BE PREPARED TO SEEK SHELTER SHOULD DANGEROUS- WEATHER APPROACH.
Special weather statement, Apr 27, 6:49 PM CDT, 20 minutes before
MSZ009-012-AL008-013-280145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 648 PM CDT FRI APR 27 1990 TORNADO WATCH NUMBER 170 CONTINUES IN EFFECT FOR EAST-CENTRAL MISSISSIPPI AND EXTREME WEST-CENTRAL ALABAMA UNTIL 1000 PM. AT 635 PM CDT MERIDIAN WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS WITH HEAVY RAIN EMBEDDED IN A LARGE AREA OF RAIN. THE LINE OF THUNDERSTORMS EXTENDS FROM WALNUT GROVE TO BAY SPRINGS TO SOSO MISSISSIPPI. THIS LINE IS MOVING EAST AT 10 MPH. PEOPLE IN NEWTON...JASPER AND JONES COUNTY CAN EXPECT HEAVY RAINS FOR THE NEXT HOUR. THIS RAIN WILL CAUSE STREET FLOODING. THE LARGE AREA OF RAIN COVERS MOST OF EAST-CENTRAL MISSISSIPPI AND WEST-CENTRAL ALABAMA AND WAS MOVING SLOWLY TO THE EAST. YOU SHOULD REMAIN WEATHER ALERT THROUGH THE EVENING HOURS. IF YOU ARE DRIVING...DO NOT DRIVE THROUGH FLOODED ROADWAYS.
Special weather statement, Apr 27, 6:56 PM CDT, 13 minutes before
MSZALL-280000- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE JACKSON MS 645 PM CDT FRI APR 27 1990 ...TORNADO WATCH NO. 170 REMAINS IN EFFECT FOR THE EAST MISSISSIPPI GENERALLY EAST OF A GRENADA TO MORTON TO COLLINS LINE... AT 630 PM A LINE OF STRONG THUNDERSTORMS 15 MILES WIDE WAS LOCATED FROM CARTHAGE TO JUST NORTH OF HATTIESBURG MOVING SLOWLY TO THE EAST. SEVERAL STRONG THUNDERSTORMS WERE OCCURRING IN THIS LINE...MAINLY FROM CARTHAGE TO WALNUT GROVE. THE LINE WAS EMBEDDED IN A LARGE AREA OF RAIN THAT COVERED MOST OF NORTH AND EAST PORTIONS OF THE STATE. THE STRONGER STORMS CONTAIN HEAVY RAIN...GUSTY WINDS AND FREQUENT DANGEROUS LIGHTNING AND POSSIBLE HAIL AS THE INDIVIDUAL THUNDERSTORMS MOVE NORTHWARD AT 25 MPH. SOME TEMPORARY FLOODING OF LOW LYING AREAS IS ALSO LIKELY. PEOPLE IN EASTERN MISSISSIPPI SHOULD REMAIN ALERT TO LATER STATEMENTS AND POSSIBLE WARNINGS AND BE PREPARED TO SEEK SHELTER SHOULD SEVERE WEATHER APPROACH. IN ADDITION...THE COLD FRONT OVER WESTERN ARKANSAS AND EAST TEXAS WAS BEGINNING TO ACCELERATE EASTWARD AND NEW TORNADO WATCHES HAVE BEEN ISSUED FOR MOST OF EAST TEXAS AS WELL AS THE WEST AND CENTRAL PORTION!S OF LOUISIANA. AS THIS NEW LINE OF THUNDERSTORMS HEADS EASTWARD LATER THIS EVENING MORE SEVERE WEATHER COULD AFFECT WEST MISSISSIPPI AFTER ABOUT 10 OR 11 PM CDT.
Special weather statement, Apr 27, 7:04 PM CDT, 5 minutes before
MSZ009-012-AL008-013-280145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MERIDIAN MS 648 PM CDT FRI APR 27 1990 TORNADO WATCH NUMBER 170 CONTINUES IN EFFECT FOR EAST-CENTRAL MISSISSIPPI AND EXTREME WEST-CENTRAL ALABAMA UNTIL 1000 PM. AT 635 PM CDT MERIDIAN WEATHER RADAR INDICATED A LINE OF THUNDERSTORMS WITH HEAVY RAIN EMBEDDED IN A LARGE AREA OF RAIN. THE LINE OF THUNDERSTORMS EXTENDS FROM WALNUT GROVE TO BAY SPRINGS TO SOSO MISSISSIPPI. THIS LINE IS MOVING EAST AT 10 MPH. PEOPLE IN NEWTON...JASPER AND JONES COUNTY CAN EXPECT HEAVY RAINS FOR THE NEXT HOUR. THIS RAIN WILL CAUSE STREET FLOODING. THE LARGE AREA OF RAIN COVERS MOST OF EAST-CENTRAL MISSISSIPPI AND WEST-CENTRAL A&LABAMA AND WAS MOVING SLOWLY TO THE EAST. YOU SHOULD REMAIN WEATHER ALERT THROUGH THE EVENING HOURS. IF YOU ARE DRIVING...DO NOT DRIVE THROUGH FLOODED ROADWAYS.
Special weather statement, Apr 27, 7:09 PM CDT, 0 minutes before
MSZALL-280000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 705 PM CDT FRI APR 27 1990 TORNADO WATCH NO. 170 REMAINS IN EFFECT FOR EAST MISSISSIPPI GENERALLY EAST OF A GRENADA TO MORTON TO COLLINS LINE. THE WATCH IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES...CARROLL...HOLMES... MADISON...COVINGTON AND LAMAR. THE STRONGEST THUNDERSTORMS HAVE MOVE EAST OF THESE FIVE COUNTIES AND IN FACT SOME CLEARING WILL CONTINUE OV0ER SOUTHWEST MISSISSIPPI FOR AT LEAST THE NEXT 3 TO 4 HOURS BEFORE MORE THUNDERSTORMS THREATEN FROM THE WEST.
The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 7:37 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.