Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 33, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at Feb 15, 1990, 1:43 PM CST for De Soto Parish, Louisiana. It was in force for 77 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
- Feb 15, 1990, 1:43 PM CST (19:43 UTC)
- Expired
- Feb 15, 1990, 3:00 PM CST
- In force
- 77 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County De Soto Parish, LA
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 |
|---|---|---|---|
| Feb 15, 1:57 PM CST | Hail 1 | De Soto, LA | |
| Feb 15, 2:25 PM CST | Tornado F1 | De Soto, LA |
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
Longview/Gregg, TX (KGGG), launched 12:00Z, 7.7 hours before the alert went out and 88 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
- 342 J/kg
- Mixed-layer CIN
- -171 J/kg
- Mixed-layer LCL
- 1286 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 275 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSHV 151945
SVRSHV
LAC015-017-031-119-152100-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
143 PM CST THU FEB 15 1990
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 300 PM CST
FOR PEOPLE IN THE FOLLOWING PARISHES...
IN NORTHWEST LOUISIANA
...SOUTHERN BOSSIER...SOUTHEAST CADDO...DESOTO...WEBSTER
AT 140 PM CST...NATIONAL WEATHER SERVICE RADARIN SHREVEPORT INDICATED
A SEVERE THUNDERSTORM FORMING 10 MILES NORTHEAST OF STONEWALL AND NEAR
LOGANSPORT. THESE STORMS ARE MOVING NORTHEAST AT 40 MILES AN HOUR.
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.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, Feb 15, 7:59 AM CST, 5 hours 44 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-003- 004-005-006-151530- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 750 AM CST THU FEB 15 1990 ...SHOWERS AND THUNDERSTORMS OVER NORTHEAST AND CENTRAL LOUISIANA PRODUCING HEAVY RAINFALL THIS MORNING... AT 750 AM CST...NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED SHOWERS AND THUNDERSTORMS OVER LOUISIANA...GENERALLY SOUTHEAST OF A LINE FROM OAK GROVE...TO WINNFIELD...TO THE TOLEDO BEND RESEVOIR. THE STRONGEST THUNDERSTORMS WERE LOCATED JUST NORTH OF LAKE PROVIDENCE AND BETWEEN OBERLIN AND DE RIDDER. ALONG WITH THE HEAVY RAINFALL THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING BRIEF GUSTY WINDS AND SMALL HAIL. MOVEMENT WAS NORTHEAST AT 35 TO 40 MILES AN HOUR. ELSEWHERE SCATTERED SHOWERS WERE LOCATED FROM BENTON LOUISIANA TO RUSK TEXAS. SHOWERS AND THUNDERSTORMS WERE ALSO LOCATED ALONG THE SABINE RIVER FROM THE TOLEDO BEND RESEVOIR SOUTHWARD TO BEAUMONT AND LAKE CHARLES. MOVEMENT WAS NORTHEAST AT 35 TO 40 MILES AN HOUR. THE THREAT OF THUNDERSTORMS WILL CONTINUE TODAY ACROSS THE ARKLATEX AS A COLD FRONT APPROACHES FROM THE WEST...SOME THUNDERSTORMS MAY BECOME SEVERE. STAY TUNEHD TO TV...RADIO...OR NOAA WEATHER WEATHER RADIO FOR THE LATEST IN WEATHER INFORMATION.
Special weather statement, Feb 15, 12:30 PM CST, 1 hour 13 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-003- 004-005-006-151930- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 1225 PM CST THU FEB 15 1990 A TORNADO WATCH IS IN EFFECT FOR A LARGE AREA INCLUDING MUCH OF NORTH LOUISIANA...SOUTHEAST ARKANSAS AND THE ADJACENT AREA OF MISSISSIPPI. SEVERE STORMS WERE OVER SOUTHEAST LOUISIANA AND THE ADJACENT AERA OF SOUTHWEST MISSISSIPPI...MOVING AWAY FROM THE ARKLATEX. HOWEVER...A BAND OF STRONG THUNDERSTORMS WILL DEVELOP OVER SOUTH- CENTRAL ARKANSAS ACROSSS NRTHWEST LOUISIANA AND EAST CENTRAL TEXAS AND SPREAD EAST. ALSO ISOLATED STRONG THUNDERSTORMS WILL DEVELOP AHEAD OF THE BAND OVER NORTH LOUISIANA AND SOUTHEAST ARKANSAS. THE THREAT OF SEVERE STORMS WILL INCREASE RAPIDLY BY MID AFTERNOON INTO THE EVENING HOURS AS THE SYSTEM SPREADS EAST. . PERSONS IN NORTH LOUISIANA AND THE ADJACENT AREA ARE ADVISED TO REMAIN ALERT...AS STORM WARNINGS WILL LIKLEY BE NECESSARY BY MID AFTERNOON. THE THREAT OF SEVERE STORMS WILL INCREASE AS THIS SYSTEM MOVES EAST. AT 1230 PM CST...NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT INDICATED SCATTERED SHOWERS ACROSS SOUTHWEST AND CENTRAL ARKANSAS FROM ASHDOWN AND TEXARKANA EAST TO LITTLE ROCK AND PINE BLUFF. ISOLATED SHOWERS AND THUNDERSTORMS WERE OVER EAST TEXAS BETWEEN CENTER AND NACOGDOCHES. MOVEMENT WAS EAST AND NORTHEAST AT AROUND 30 MILES AN HOUR. STAY TUNED TO TV...RADIO AND NOAA WEATHER RADIO FOR THE zLATEST IN WEATHER INFORMATION.
Special weather statement, Feb 15, 1:33 PM CST, 10 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-003- 004-005-006-152100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 130 PM CST THU FEB 15 1990 A TORNADO WATCH IS IN EFFECT FOR A LARGE AREA INCLUDING MUCH OF NORTH LOUISIANA...SOUTHEAST ARKANSAS AND THE ADJACENT AREA OF MISSISSIPPI. A BAND OF STRONG THUNDERSTORMS WERE DEVELOPIING AT 130 PM CST FROM NEAR MAGNOLIA ARKANSAS TO NEAR SHREVEPORT TO NEAR NACOGDOCHES TEXAS. THESE STORMS WERE INCREASING IN INTENSITY AND AREAL COVERAGE WHILE MOVING NORTH NORTHEAST AT 40 MPH. THUS FAR...PEA SIZE HAIL AND HEAVY RAINFALL AND STRONG GUSTY WINDS HAVE OCCURRED. STORMS WILL DEVELOP AHEAD OF THE BAND OVER NORTH LOUISIANA AND SOUTHEAST ARKANSAS. THE THREAT OF SEVERE STORMS WILL INCREASE RAPIDLY BY MID AFTERNOON INTO THE EVENING HOURS AS THE SYSTEM SPREADS EAST. . PERSONS IN NORTH LOUISIANA AND THE ADJACENT AREA ARE ADVISED TO REMAIN ALERT...AS STORM WARNINGS WILL LIKLEY BE NECESSARY BY MID AFTERNOON. THE THREAT OF SEVERE STORMS WILL INCREASE AS THIS SYSTEM MOVES EAST. THE STORMS FROM SOUTH OF SHREVEPORT TO WEST OF CENTER TEXAS WILL LIKELY PRODUCE HIGH WIND GUSTS AND HAIL SIZE MAY INCREASE WITHIN THE NEXT HOUR AND SEVERE STORMS MAY DEVELOP. NEW STORMS WERE DEVELOPING AHEAD OF THE BAND FROM 20 MILES SOUTHEAST OF EL DORADO ARKANSAS TO NEAR HOMER LOUISIANA TO 20 MILES SOUTHWEST OF RUSTON. THESE STORMS WILL INCREASE RAPIDLY AND MAY REACH SEVERE INTENSITY WITHIN THE NEXT HOUR OR SO.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 15, 1:43 PM CST | Severe Thunderstorm Warning | SHV | Bossier, Caddo, Webster | 77 min |
| Feb 15, 2:13 PM CST | Tornado Warning | SHV | De Soto | 62 min |
| Feb 15, 2:15 PM CST | Severe Thunderstorm Warning | SHV | Claiborne | 60 min |
| Feb 15, 2:38 PM CST | Tornado Warning | SHV | Bienville, Claiborne, Lincoln | 67 min |
| Feb 15, 3:00 PM CST | Tornado Warning | SHV | Union | 75 min |
| Feb 15, 3:00 PM CST | Tornado Warning | SHV | Webster | 75 min |
| Feb 15, 4:15 PM CST | Severe Thunderstorm Warning | SHV | Morehouse, Union | 60 min |
| Feb 15, 4:15 PM CST | Severe Thunderstorm Warning | SHV | Lincoln | 60 min |
| Feb 15, 5:35 PM CST | Severe Thunderstorm Warning | SHV | Morehouse, Ouachita, Richland | 70 min |
Nearby
Severe Thunderstorm Warnings in Louisiana, 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.