Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 72, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Aug 20, 1990, 5:22 PM CDT for Lowndes County, Mississippi. It was in force for 53 min.
The area
The counties it named.
The facts
- Issued
- Aug 20, 1990, 5:22 PM CDT (22:22 UTC)
- Expired
- Aug 20, 1990, 6:15 PM CDT
- In force
- 53 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
County Lowndes County, MS
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Centreville/Bibb, AL (KCKL), launched 12:00Z, 10.4 hours before the alert went out and 132 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
- 0 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
- 13 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 202222 SVRTUP MSC087-202315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUPELO MS 522 PM CDT MON AUG 20 1990 THE NATIONAL WEATHER SERVICE IN TUPELO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL MISSISSIPPI ...NORTHEASTERN LOWNDES COUNTY AT 520 PM CDT NATIONAL WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM 10 MILES NORTHEAST OF COLUMBUS. THIS STORM WAS MOVING VERY SLOWLY TO THE EAST. 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 qTHE 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, Aug 20, 5:03 PM CDT, 19 minutes before
MSZ005-007-202300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUPELO MS 500 PM CDT MON AUG 20 1990 AT 500 PM CDT NATIONAL WEATHER SERVICE RADAR SHOWED STRONG THUNDERSTORMS ACROSS MONROE AND LOWNDES COUNTY. THESE STORMS ARE CAPABLE OF PRODUCING GUSTY WINDS IN THE 40 TO 50 MPH RANGE...VERY HEAVY RAIN...FREQUENT LIGHTNING STRIKES AND POSSIBLE SMALL HAIL. ONE OF THESE STORM PRODUCED A WIND GUST OF 48 MPH AS IT MOVED ACROSS COUMBUS AIR FORCE BASE. YOU SHOULD STAY ALERT AND BE PREPARED TO SEEK A SAFE SHELTER IF A WARNING SHOULD BE ISSUED. THUNDERSTORMS ARE EXPECTED TO CONTINUE TO DEVELOPE ACROSS NORTHEAST MISSISSIPPI THIS AFTERNOON IN THE HOT AND HUMID AIR OVER THE REGION. THEY WILL USTART TO DIMINISH SHORTLY AFTER SUNDOWN. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 6:57 PM CDT | Severe Thunderstorm Warning | MEG | Lee | 48 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; the sounding from the Mesonet's radiosonde archive.