Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 145, NWS Jackson, MS
NWS Jackson, MS issued this severe thunderstorm warning at Jun 18, 1990, 5:46 PM CDT for Neshoba County, Mississippi. It was in force for 44 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
- Jun 18, 1990, 5:46 PM CDT (22:46 UTC)
- Expired
- Jun 18, 1990, 6:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Jackson, MS
- Area
- Whole counties
County Neshoba 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 |
|---|---|---|---|
| Jun 18, 6:15 PM CDT | Thunderstorm Wind 0 | Neshoba, 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 12:00Z, 10.8 hours before the alert went out and 102 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
- 1008 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 43 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 182247 SVRMEI MSC099-182330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MERIDIAN MS 546 PM CDT MON JUN 18 1990 THE NATIONAL WEATHER SERVICE IN MERIDIAN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSISSIPPI ...NESHOBA COUNTY AT 545 PM CDT MERIDIAN RADAR INDICATED A SEVERE THUNDERSTORM NEAR PHILADELPHIA MISSISSIPPI MOVING SOUTH AT 15 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. 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, Jun 18, 2:30 PM CDT, 3 hours 16 minutes before
MSZALL-182300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 230 PM CDT MON JUN 18 1990 ...HEAT INDEX 110 TO 120 CENTRAL AND SOUTH THIS AFTERNOON AND TUESDAY... HOT AND HUMID WEATHER CONTINUED ACROSS MISSISSIPPI THIS AFTERNOON. WORST CONDITIONS HAVE BEEN IN THE SOUTHERN AND CENTRAL COUNTIES WHERE A FEW PLACES HAVE REPORTED HEAT INDICES BETWEEN 110 AND 120. MORE HOT WEATHER IS EXPECTED STATEWIDE TUESDAY. ALTHOUGH A WEAK TROUGH OF LOW PRESSURE WILL BE MOVING THROUGH THE STATE TONIGHT...IT APPEARS THAT SLIGHTLY DRIER AIR WILL BE FILTERING INTO THE NORTHERN COUNTIES TUESDAY. HOWEVER...THE SOUTHERN AND CENTRAL COUNTIES MAY AGAIN SEE HEAT INDICES FROM 110 TO 120 AGAIN TOMORROW. PEOPLE WHO MUST BE OUTSIDE FOR PROLONGED PERIODS OF TIME SHOULD TAKE NECESSARY PRECAUTIONS TO GUARD AGAINST THE OPPRESSIVE HEAT.
Special weather statement, Jun 18, 4:10 PM CDT, 1 hour 36 minutes before
MSZ002-006-007-182200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON MS 405 PM CDT MON JUN 18 1990 ...STRONG THUNDERSTORMS MOVING THROUGH THE UPPER DELTA... AT 400 PM...RADAR INDICATED A LARGE VERY STRONG THUNDERSTORM IN SOUTHERN QUITMAN COUNTY MOVING SOUTH AT 20 MILES AN HOUR TOWARD TALLAHATCHIE COUNTY. THIS STORM SHOULD MOVE TO THE EAST OF TUTWILER AND SUMNER INTO CENTRAL TALLAHATCHIE COUNTY DURING THE NEXT 30 MILES. VERY HEAVY RAIN...GUSTY WINDS...FREQUENT LIGHTNING STRIKES AND POSSIBLE HAIL WILL ACCOMPANY THIS STORM. PERSONS WHO ARE OUTDOORS SHOULD MOVE TO A PLACE OF SAFETY AND BOATERS ON AREA LAKES WILL NEED TO TAKE COVER AS THESE THUNDERSTORMS APPROACH. REMEMBE"R...LIGHTNING IS ONE OF THE DEADLIEST KILLERS FROM SUMMERTIME THUNDERSTORMS. CONTINUED THUNDERSTORM DEVELOPMENT IS LIKELY ACROSS NORTH CENTRAL MISSISSIPPI FROM GREENWOOD TO GREENVILLE TO COLUMBUS UNTIL SUNSET.
Local storm report, Jun 18, 5:04 PM CDT, 42 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MERIDIAN MS
500 PM CDT MON JUN 18 1990
420 PM CDT...NOXUBEE COUNTY C. D. DIRECTOR REPORTED GOLF BALL
SIZE HAIL...TREES AND POWER LINES DOWN 10 MInLES
SOUTHEAST OF MACON IN NOXUBEE COUNTY MISSISSIPPI.The office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 4:14 PM CDT | Severe Thunderstorm Warning | JAN | Kemper, Noxubee | 46 min |
| Jun 18, 4:46 PM CDT | Severe Thunderstorm Warning | JAN | Leflore, Sunflower | 44 min |
| Jun 18, 5:08 PM CDT | Severe Thunderstorm Warning | JAN | Lauderdale | 52 min |
| Jun 18, 6:07 PM CDT | Severe Thunderstorm Warning | JAN | Winston | 53 min |
| Jun 18, 6:40 PM CDT | Severe Thunderstorm Warning | JAN | Jasper | 50 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.