Alert archive / Louisiana / Tornado Watches in 1999
Tornado Watch 28
The Storm Prediction Center issued this tornado watch at Jan 22, 1999, 3:00 AM CST for 35 parishes in Louisiana; 4 counties in Mississippi; 35 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jan 22, 1999, 3:00 AM CST (09:00 UTC)
- Expired
- Jan 22, 1999, 9:00 AM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 74 counties
Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Calcasieu Parish, LA, Caldwell Parish, LA, Cameron Parish, LA, Catahoula Parish, LA, Claiborne Parish, LA, Concordia Parish, LA, De Soto Parish, LA, East Carroll Parish, LA, Evangeline Parish, LA, Franklin Parish, LA, Grant Parish, LA, Jackson Parish, LA, Jefferson Davis Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Madison Parish, LA, Morehouse Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Red River Parish, LA, Richland Parish, LA, Sabine Parish, LA, Tensas Parish, LA, Union Parish, LA, Vernon Parish, LA, Webster Parish, LA, West Carroll Parish, LA, Winn Parish, LA, Issaquena County, MS, Sharkey County, MS, Warren County, MS, Yazoo County, MS, Angelina County, TX, Austin County, TX, Chambers County, TX, Cherokee County, TX, Colorado County, TX, Fayette County, TX, Fort Bend County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Harrison County, TX, Houston County, TX, Jasper County, TX, Jefferson County, TX, Lavaca County, TX, Liberty County, TX, Madison County, TX, Marion County, TX, Montgomery County, TX, Nacogdoches County, TX, Newton County, TX, Orange County, TX, Panola County, TX, Polk County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX
The radar
The Lake Charles radar (KLCH), 148 km from the middle of the area, began a volume at 09:02 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Warnings issued inside it
25 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 22, 3:26 AM CST | Tornado Warning | HGX | Grimes | 59 min |
| Jan 22, 3:45 AM CST | Tornado Warning | HGX | Madison | 50 min |
| Jan 22, 4:08 AM CST | Severe Thunderstorm Warning | HGX | Houston, Trinity, Walker | 57 min |
| Jan 22, 4:19 AM CST | Severe Thunderstorm Warning | SHV | Nacogdoches | 61 min |
| Jan 22, 4:31 AM CST | Severe Thunderstorm Warning | SHV | Natchitoches | 49 min |
| Jan 22, 4:37 AM CST | Severe Thunderstorm Warning | SHV | Sabine | 48 min |
| Jan 22, 4:43 AM CST | Tornado Warning | HGX | Grimes | 62 min |
| Jan 22, 4:46 AM CST | Tornado Warning | SHV | Natchitoches | 49 min |
| Jan 22, 5:01 AM CST | Tornado Warning | SHV | Red River | 49 min |
| Jan 22, 5:08 AM CST | Tornado Warning | HGX | Walker | 37 min |
| Jan 22, 5:10 AM CST | Severe Thunderstorm Warning | SHV | De Soto, Red River | 50 min |
| Jan 22, 5:40 AM CST | Tornado Warning | SHV | Bienville | 45 min |
| Jan 22, 5:42 AM CST | Severe Thunderstorm Warning | HGX | Polk | 33 min |
| Jan 22, 5:44 AM CST | Tornado Warning | SHV | Jackson | 46 min |
| Jan 22, 5:56 AM CST | Severe Thunderstorm Warning | SHV | Lincoln | 49 min |
| Jan 22, 6:10 AM CST | Tornado Warning | SHV | Lincoln | 35 min |
| Jan 22, 6:17 AM CST | Tornado Warning | SHV | Ouachita | 48 min |
| Jan 22, 6:38 AM CST | Severe Thunderstorm Warning | SHV | Union | 47 min |
| Jan 22, 6:53 AM CST | Tornado Warning | JAN | Morehouse | 47 min |
| Jan 22, 7:22 AM CST | Flash Flood Warning | SHV | Bossier, Caddo, De Soto | 4 hr |
| Jan 22, 7:22 AM CST | Flash Flood Warning | SHV | Webster | 4 hr |
| Jan 22, 7:33 AM CST | Tornado Warning | JAN | West Carroll | 37 min |
| Jan 22, 7:40 AM CST | Tornado Warning | JAN | Morehouse | 40 min |
| Jan 22, 7:51 AM CST | Severe Thunderstorm Warning | HGX | Liberty, San Jacinto | 44 min |
| Jan 22, 8:02 AM CST | Severe Thunderstorm Warning | HGX | Polk | 63 min |
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 9.0 hours before the alert went out and 150 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
- 1953 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 544 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 232 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 12.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 21, 8:30 PM CST | Tornado Watch | SPC | Avoyelles, Bienville, Bossier, Caddo, Caldwell, Catahoula and 26 more | 7 hr |
| Jan 22, 9:45 AM CST | Tornado Watch | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 36 more | 6 hr |
| Jan 22, 3:00 PM CST | Tornado Watch | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberia, Iberville and 19 more | 6 hr |
| Jan 21, 9:00 PM CST | Tornado Watch | SPC | Bolivar, Coahoma, DeSoto, Humphreys, Leflore, Marshall and 7 more | 6 hr |
| Jan 22, 3:00 AM CST | Tornado Watch | SPC | Alcorn, Benton, Bolivar, Calhoun, Carroll, Coahoma and 22 more | 6 hr |
| Jan 22, 9:00 AM CST | Tornado Watch | SPC | Alcorn, Amite, Attala, Benton, Bolivar, Calhoun and 69 more | 6 hr |
| Jan 22, 12:45 PM CST | Tornado Watch | SPC | Tishomingo | 6 hr |
| Jan 22, 2:15 PM CST | Tornado Watch | SPC | Adams, Amite, Attala, Carroll, Choctaw, Claiborne and 45 more | 6 hr |
Nearby
Tornado Watches in Louisiana, 1999Tornado Watches in Texas, 1999Tornado Watches in Mississippi, 1999Every tornado watch in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.