Alert archive / Mississippi / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 58, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Jun 21, 1990, 3:58 PM CDT for Panola County, Mississippi. It was in force for 32 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 21, 1990, 3:58 PM CDT (20:58 UTC)
- Expired
- Jun 21, 1990, 4:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Memphis, TN
- Area
- Whole counties
County Panola 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 21, 4:05 PM CDT | Thunderstorm Wind 0 | Panola, 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, 9.0 hours before the alert went out and 228 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
- 3038 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 21, 3:07 PM CDT, 51 minutes before
MSZ004-005-212115- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TUPELO MS 307 PM CDT THU JUN 21 1990 ...SEVERE THUNDERSTORM WATCH NUMBER 513 IN EFFECT FOR MOST OF NORTH MISSISSIPPI UNTIL 9 PM CDT... AT 255 PM CDT WEATHER SERVICE RADAR INDICATED DEVELOPING STRONG THUNDERSTORMS OVER PORTIONS OF NORTHERN MISSISSIPPI. THE STRONGEST ACTIVITY OVER NORTHEAST MISSISSIPPI WAS EIGHT MILES NORTHWEST OF HOUSTON MISSISSIPPI IN CHICKASAW COUNTY. MOVEMENT WAS EAST AT 20 TO 25 MILES AN HOUR. WITH THE PASSAGE OF THE STORMS STRONG GUSTY WINDS OF AROUND 35 TO 45 MILES AN HOUR...FREQUENT LIGHTNING....VERY HEAVY RAINS AND POSSIBLE HAIL CAN BE EXPECTED. PERSONS IN NORTHEAST MISSISSIPPI NEED TO BE WEATHER ALERT AND TAKE QUICK ACTION WHEN THREATENING WEATHER APPROACHES. IF YOU ARE OUTSIDE OR IN ROUTE TAKE SHELTER IMMEDIATELY IN CASE OF HEAVY DOWN POUR OF RAIN. KEEP YOURSELF UPDATED THROUGH THE LATE AFTERNOON INTO THE EVENING HOURS WITHX YOUR LOCAL NEWS MEDIA OR NOAA WEATHER RADIO AS THE WEATHER DEVELOPS. MORE STATEMENTS OR POSSIBLE WARNINGS WILL BE ISSUED FOR THE DURATION OF THE WATCH. NNNN
The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:45 PM CDT | Severe Thunderstorm Warning | MEG | Lowndes | 60 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.