Alert archive / Louisiana / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 85, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 3, 1990, 3:36 PM CDT for Bossier Parish, Caddo Parish, Louisiana. It was in force for 3 hr. 3 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
- May 3, 1990, 3:36 PM CDT (20:36 UTC)
- Expired
- May 3, 1990, 6:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Bossier Parish, LA, Caddo 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 |
|---|---|---|---|
| May 3, 3:58 PM CDT | Thunderstorm Wind 0 | Caddo, LA | |
| May 3, 4:15 PM CDT | Thunderstorm Wind 0 | Bossier, LA | |
| May 3, 4:30 PM CDT | Thunderstorm Wind 0 | Caddo, 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, 8.6 hours before the alert went out and 86 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
- 200 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.3
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, May 3, 2:14 PM CDT, 1 hour 22 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-032100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 210 PM CDT THU MAY 3 1990 ...A FLASH FLOOD WATCH IS IN EFFECT THIS AFTERNOON FOR NORTHEAST TEXAS SOUTHWEST ARKANSAS AND SOUTHEAST OKLAHOMA... ...A FLASH FLOOD WATCH HAS ALSO BEEN ISSUED FOR NORTHWEST LOUISIANA FOR THE REMAINDER OF THIS AFTERNOON AND TONIGHT... AT 200 PM CDT..NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT INDICATED A THUNDERSTORM PODUCING VERY HEAVY RAINFALL MOVING INTO SOUTHEAST RUSK AND WESTERN SHELBY COUNTIES OF EAST TEXAS. THIS THUNDERSTORM WAS 15 MILES WEST OF CENTER TEXAS. THE THUNDERSTORM IS ALSO CAPABLE OF PRODUCING STRONG GUSTY WINDS...SMALL HAIL AND DANGEROUS LIGHTNING. MOVEMENT WAS NORTHEAST AT 25 TO 30 MILES AN HOUR. THIS THUNDERSTORM WAS PART OF A LARGER AREA OF RAIN AND THUNDERSTORMS THAT STRETCHED FROM MENA AND FORDYCE ARKANSAS SOUTHWEST TO SHREVEPORT 9ND TYLER TO LUFKIN. THE AREA OF RAINFALL WAS MOVING EAST AT 10 TO 15 MILES AN HOUR. PERSONS LIVING IN LOW LYING OR FLOOD PRONE AREAS OR NEAR LAKES..RIVERS AND STREAMS THAT ARE AT HIGHS LEVELS OR FORECAST TO REACH HIGH LEVELS.. SHOULD) BE PREPARED TO MOVE TO HIGHER GROUND IF HEAVY RAINS OCCUR OR A WARNING IS ISSUED FOR YOUR AREA. STAY TUNED TO TV..RADIO AND NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 3:11 PM CDT | Flash Flood Warning | SHV | De Soto | 64 min |
| May 3, 3:11 PM CDT | Severe Thunderstorm Warning | SHV | De Soto | 64 min |
| May 3, 3:36 PM CDT | Flash Flood Warning | SHV | Bossier, Caddo | 3 hr |
| May 3, 4:16 PM CDT | Flash Flood Warning | SHV | Bienville, Webster | 3 hr |
| May 3, 4:16 PM CDT | Flash Flood Warning | SHV | De Soto | 3 hr |
| May 3, 4:16 PM CDT | Flash Flood Warning | SHV | Red River | 3 hr |
| May 3, 4:16 PM CDT | Severe Thunderstorm Warning | SHV | De Soto, Red River | 3 hr |
| May 3, 4:16 PM CDT | Severe Thunderstorm Warning | SHV | Bienville, Webster | 3 hr |
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.