Alert archive / Texas / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 101, NWS Shreveport, LA
NWS Shreveport, LA issued this severe thunderstorm warning at May 11, 1992, 10:54 PM CDT for Gregg County, Harrison County, Marion County, Texas. It was in force for 66 min. 4 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 11, 1992, 10:54 PM CDT (03:54 UTC)
- Expired
- May 12, 1992, 12:00 AM CDT
- In force
- 66 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Gregg County, TX, Harrison County, TX, Marion County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 11, 11:07 PM CDT | Tornado F1 | Gregg, TX | |
| May 11, 11:11 PM CDT | Hail 1 | Marion, TX | |
| May 11, 11:43 PM CDT | Tornado F0 | Harrison, TX | |
| May 11, 11:52 PM CDT | Hail 1.75 | Gregg, TX |
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 00:00Z, 3.9 hours before the alert went out and 30 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
- 1833 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 924 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 200 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 8.5
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 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 11, 10:54 PM CDT, 0 minutes before
OKZ040-021-034-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001- 002-003-004-005-006-120500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 1055 PM CDT MON MAY 11 1992 TORNADO WATCH IN EFFECT FOR NORTHWEST AND NORTHCENTRAL LOUISIANA... SOUTHWEST ARKANSAS AND NORTHEAST TEXAS. AT 1045 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED AN AREA OF SHOWERS AND THUNDERSTORMS LOCATED TO THE NORTH AND WEST OF A LINE FROM TYLER AND KARNACK TEXAS...ON TO RODESSA LOUISIANA...CANFIELD ...STEPHENS AND PRINCETON ARKANSAS. THE HEAVIEST STORMS WERE LOCATED NEAR MANNING ARKANSAS...TEXARKANA...ATLANTA...HUGHES SPRINGS...LONE STAR... AND BIG SANDY TEXAS. ANOTHER THUNDERSTORM WAS LOCATED NEAR CAMPBELL TEXAS. ISOLATED SHOWERS HAD DEVELOPED DURING THE PAST HOUR NEAR FLORIEN AND MANY LOUISIANA. THE SHOWERS AND THUNDERSTORMS WERE MOVING TO THE EAST AT 20 MILES PER HOUR. THE STRONGER THUNDERSTORMS WERE PRODUCING VERY HEAVY RAINFALL IN EXCESS OF ONE INCH IN A VERY SHORT TIME...RESULTING IN FLOODING IN LOW LYING AND FLOOD PRONE AREAS. THESE STORMS WERE ALSO PRODUCING STRONG WINDS UP TO 45 MILES AN HOUR AND UP TO MARBLE SIZE HAIL. STAY TUNED FOR FURTHER UPDATES AND POSSIBLE WARNINGS.
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 11:29 PM CDT | Tornado Warning | SHV | Bossier, Caddo | 56 min |
| May 12, 3:42 AM CDT | Flash Flood Warning | SHV | De Soto | 3 hr |
| May 12, 4:58 AM CDT | Severe Thunderstorm Warning | SHV | Winn | 32 min |
| May 11, 9:01 PM CDT | Severe Thunderstorm Warning | SHV | Little River, Sevier | 59 min |
| May 11, 9:01 PM CDT | Severe Thunderstorm Warning | SHV | Cass | 59 min |
| May 11, 11:05 PM CDT | Tornado Warning | SHV | Gregg | 40 min |
| May 11, 11:21 PM CDT | Tornado Warning | SHV | Harrison | 64 min |
| May 11, 11:29 PM CDT | Tornado Warning | SHV | Gregg | 56 min |
| May 11, 11:47 PM CDT | Severe Thunderstorm Warning | SHV | Rusk | 58 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1992Every severe thunderstorm warning in 1992
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.