Alert archive / Louisiana / Tornado Warnings in 1990
Tornado Warning 35, NWS Shreveport, LA
NWS Shreveport, LA issued this tornado warning at Dec 21, 1990, 2:02 PM CST for Madison Parish, Tensas Parish, Louisiana. It was in force for 58 min. 5 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
- Dec 21, 1990, 2:02 PM CST (20:02 UTC)
- Expired
- Dec 21, 1990, 3:00 PM CST
- In force
- 58 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Madison Parish, LA, Tensas 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 |
|---|---|---|---|
| Dec 21, 2:14 PM CST | Tornado F1 | Tensas, LA | |
| Dec 21, 2:30 PM CST | Tornado F1 | Madison, LA | |
| Dec 21, 2:30 PM CST | Tornado F1 | Madison, LA | |
| Dec 21, 2:37 PM CST | Tornado F2 | Madison, LA | |
| Dec 21, 2:40 PM CST | Tornado F1 | Madison, 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
Jackson, MS (KJAN), launched 12:00Z, 8.0 hours before the alert went out and 115 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
- 572 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 685 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 248 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSHV 212003 TORSHV LAC065-107-212100- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE SHREVEPORT LA 202 PM CST FRI DEC 21 1990 THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 300 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS.. IN NORTHEAST LOUISIANA ...MADISON PARISH...TENSAS PARISH THE NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM SOUTH OF TALLULAH. ALSO THERE HAVE BEEN REPORTS OF A TORNADO 20 MILES SOUTH SOUTHWEST OF TALLULAH. THE TORNADO WAS MOVING NORTHEAST AT 35 MPH. THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE". OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
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, Dec 21, 8:20 AM CST, 5 hours 42 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-041430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 815 AM CST FRI DEC 21 1990 STRONG THUNDERSTORMS REDEVELOPING OVER NORTHEAST TEXAS AT 810 AM THE SHREVEPORT WEATHER RADAR SHOWED AN AREA OF SHOWERS AND STRONG THUNDERSTORMS DEVELOPING FROM WEST OF LONGVIEW TO BETWEEN PALESTINE AND CORSICANA. MOVEMENT WAS TO THE EAST NORTHEAST NEAR 25 MPH. THESE THUNDERSTORMS ARE INCREASING IN AREAL COVERAGE AND INTENSITY AND WILL BE MOVING INTO EXTREME NORTHEASTERN TEXAS..THEN INTO SOUTHWEST ARKANSAS AND NORTHWEST LOUISIANA. SOME OF THE STRONGER THUNDERSTORMS WILL PRODUCE HEAVY RAINFALL...STRONG GUSTY WINDS ALONG WITH FREQUENT LIGHTNING AND HAIL. ELSEWHERE...SHOWERS AND THUNDERSTORMS WERE LOCATED OVER NORTHERN LOUISIANA FROM SOUTH OF ELDORADO THROUGH NATCHITOCHES TO THE TOLEDO BEND COUNTRY. THE THREAT OF MORE SEVERE WEATHER EXISTS OVER MUCH OF THE ARKLATEX FOR THE REMAINDER OF THE MORNING INTO THIS AFTERNOON.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 21, 12:07 AM CST | Tornado Warning | SHV | Bossier, Caddo | 68 min |
| Dec 21, 12:40 AM CST | Tornado Warning | SHV | Webster | 65 min |
| Dec 21, 12:55 AM CST | Severe Thunderstorm Warning | SHV | East Carroll | 50 min |
| Dec 21, 10:48 AM CST | Severe Thunderstorm Warning | SHV | Bienville | 57 min |
| Dec 21, 11:05 AM CST | Severe Thunderstorm Warning | SHV | Jackson, Lincoln | 55 min |
| Dec 21, 1:08 PM CST | Severe Thunderstorm Warning | SHV | Richland, West Carroll | 67 min |
| Dec 21, 1:08 PM CST | Severe Thunderstorm Warning | SHV | Caldwell, Jackson, Ouachita, Winn | 67 min |
| Dec 21, 1:33 PM CST | Severe Thunderstorm Warning | SHV | De Soto | 72 min |
| Dec 21, 1:46 PM CST | Severe Thunderstorm Warning | SHV | East Carroll, Madison | 89 min |
| Dec 21, 1:46 PM CST | Severe Thunderstorm Warning | SHV | Tensas | 89 min |
| Dec 21, 2:55 PM CST | Severe Thunderstorm Warning | SHV | Webster | 65 min |
| Dec 21, 3:17 PM CST | Severe Thunderstorm Warning | SHV | Bienville, Red River | 88 min |
| Dec 21, 3:17 PM CST | Severe Thunderstorm Warning | SHV | Franklin, Madison, Tensas | 88 min |
| Dec 21, 4:03 PM CST | Tornado Warning | SHV | Tensas | 57 min |
| Dec 21, 5:16 PM CST | Severe Thunderstorm Warning | SHV | Madison, Tensas | 59 min |
| Dec 21, 5:30 PM CST | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 60 min |
| Dec 21, 5:30 PM CST | Tornado Warning | SHV | Madison | 60 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.