Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 71, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Jul 30, 1990, 2:13 PM CDT for Lee County, Mississippi. It was in force for 47 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
- Jul 30, 1990, 2:13 PM CDT (19:13 UTC)
- Expired
- Jul 30, 1990, 3:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
County Lee 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 |
|---|---|---|---|
| Jul 30, 2:30 PM CDT | Thunderstorm Wind 0 | Lee, 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
Little Rock, AR (KLZK), launched 12:00Z, 7.2 hours before the alert went out and 131 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
- 3611 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 83 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 KTUP 301913 SVRTUP MSC081-302000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUPELO MS 213 PM CDT MON JUL 30 1990 THE NATIONAL WEATHER SERVICE IN TUPELO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 300 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST MISSISSIPPI ...SOUTHERN LEE COUNTY NATIONAL WEATHER SERVICE RADAR SHOWES A SEVERE THUNDERSTORM 8 MILES SOUTH OF TUPELO IN SOUTHERN LEE COUNTY. THIS STORM WAS MOVING EAST AT 20 MPH. IF YOU ARE IN THE PATH OF THIS STORM YOU SHOULD SEEK A SAFE SHELTER NOW. 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. NNNN
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, Jul 30, 2:02 PM CDT, 11 minutes before
MSZ004-005-007-302000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUPELO MS 202 PM CDT MON JUL 30 1990 AT 155PM CDT NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS DEVELOPING RAPIDLY ACROSS NORTHEAST MISSISSIPPI. THE STRONGEST STORM WAS LOCATED NINE MILES SOUTHWEST OF TUPELO. THIS STORM WAS MOVING EAST AT 15 TO 20 MPH. THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING THIS AFTERNOON IN VERY WARM...HUMID AND UNSTABLE AIR ACROSS THE REGION AS A WEAK COOL FRONT ACROSS ARKANSAS MOVES SLOWLY SOUTHEAST. SOME OF THESE STORMS WILL BE CAPABLE OF PRODUCING VERY HEAVY RAIN...STRONG GUSTY WIND...FREQUENT LIGHTNING STRIKES AND POSSIBLE HAIL AS THEY DEVELOPE AND MOVE EAST ACROSS NORTHEAST MISSISSIPPI. YOU SHOULD STAY ALERT AND BE PREPARED TO SEEK A SAFE SHELTER IF A WARNING IS ISSUED. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION. NNNN
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.