Alert archive / Louisiana / Tornado Warnings in 1990
Tornado Warning 6, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Feb 15, 1990, 3:00 PM CST for Webster Parish, Louisiana. It was in force for 75 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
- Feb 15, 1990, 3:00 PM CST (21:00 UTC)
- Expired
- Feb 15, 1990, 4:15 PM CST
- In force
- 75 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
County Webster 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, 3:15 PM CST | Tornado F0 | Webster, 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, 9.0 hours before the alert went out and 125 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
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 tornado 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, 12:30 PM CST, 2 hours 30 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, 1 hour 27 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, 1:43 PM CST | Severe Thunderstorm Warning | SHV | De Soto | 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, 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
Tornado Warnings in Louisiana, 1990Every tornado warning in 1990Tornadoes 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.