Alert archive / Texas / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 21, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at May 11, 1991, 9:25 PM CDT for Lamb County, Texas. It was in force for 65 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
- May 11, 1991, 9:25 PM CDT (02:25 UTC)
- Expired
- May 11, 1991, 10:30 PM CDT
- In force
- 65 min
- Issued by
- NWS Lubbock, TX
- Area
- Whole counties
County Lamb County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 11, 10:10 PM CDT | Hail 1.75 | Lamb, 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 2.4 hours before the alert went out and 142 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
- 2372 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1498 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLBB 120226 SVRLBB TXC279-120330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LUBBOCK TX 925 PM CDT SAT MAY 11 1991 THE NATIONAL WEATHER SERVICE IN LUBBOCK HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST TEXAS ...EASTERN LAMB COUNTY THE TORNADO WARNING FOR LAMB COUNTY HAS BEEN CANCELLED. THERE HAVE BEEN NO FURTHER INDICATIONS OF A TORNADO WHICH WAS REPORTED EARLIER IN LAMB COUNTY. HOWEVER RADAR STILL INDICATES SEVERE THUNDERSTORMS OVER EASTERN LAMB COUNTY. STORMS CONTINUE TO MOVE TO THE NORTH NORTHEAST AT 20 MPH. GOLFBALL SIZE HAIL WAS REPORTED AT 9 PM CDT IN LITTLEFIELD BY THE EARTH FIRE DEPARTMENT. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WE\ATHER CONDITIONS.
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, 4:21 PM CDT, 5 hours 4 minutes before
TXZ007>012-112300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 420 PM CDT SAT MAY 11 1991 ...TORNADO WATCH IN EFFECT FOR MOST OF THE SOUTH PLAINS... A TORNADO WATCH IS IN EFFECT FOR THE WESTERN AND CENTRAL COUNTIES OF THE SOUTH PLAINS UNTIL 11 PM CDT. ONLY KING COUNTY AND COTTLE COUNTY OF THE EXTREME EASTERN SOUTH PLAINS ARE NOT INCLUDED IN THIS WATCH. AT THIS TIME THE ONLY THUNDERSTORM INDICATED OVER THE SOUTH PLAINS WAS IN EXTREME SOUTHEASTERN HOCKLEY COUNTY JUST WEST OF ROPESVILLE. MOVEMENT WAS NORTHEAST AT 25 MPH. MONITOR NOAA WEATHER RADIO OR COMMERCIAL RADIO AND TELEVISION FOR LATER STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE REGARDING THIS POTENTIALLY DANGEROUS WEATHER SITUATION. DB
Special weather statement, May 11, 5:09 PM CDT, 4 hours 16 minutes before
TXZ007>012-112300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LUBBOCK TX 505 PM CDT SAT MAY 11 1991 ...TORNADO WATCH IN EFFECT FOR MOST OF THE SOUTH PLAINS... A TORNADO WATCH IS IN EFFECT FOR THE WESTERN AND CENTRAL COUNTIES OF THE SOUTH PLAINS UNTIL 11 PM CDT. AT 500 PM NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM OVER SOUTHWEST HALE COUNTY...ABOUT 8 MILES SOUTHWEST OF HALE CENTER. MOVEMENT WAS NORTHEAST AT 20 MPH. OTHER THUNDERSTORMS WERE SCATTERED TO THE WEST OF LUBBOCK...ACROSS EASTERN HOCKLEY AND WESTERN LUBBOCK COUNTIES. AS OF 505 PM NO SEVERE WEATHER WAS INDICATED IN ANY OF THESE THUNDERSTORMS. MONITOR NOAA WEATHER RADIO OR COMMERCIAL RADIO AND TELEVISION FOR LATER STATEMENTS AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE REGARDING THIS POTENTIALLY DANGEROUS WEATHER SITUATION. DB
The office that day
Everything else NWS Lubbock, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 7:09 PM CDT | Severe Thunderstorm Warning | LUB | Lamb | 66 min |
| May 11, 7:15 PM CDT | Tornado Warning | LUB | Hale | 30 min |
| May 11, 7:36 PM CDT | Tornado Warning | LUB | Hockley | 54 min |
| May 11, 8:21 PM CDT | Severe Thunderstorm Warning | LUB | Hockley | 54 min |
| May 11, 8:39 PM CDT | Severe Thunderstorm Warning | LUB | Lamb | 66 min |
| May 11, 8:47 PM CDT | Severe Thunderstorm Warning | LUB | Hale | 43 min |
| May 11, 9:07 PM CDT | Tornado Warning | LUB | Lamb | 38 min |
| May 11, 9:40 PM CDT | Severe Thunderstorm Warning | LUB | Hale | 65 min |
| May 11, 9:56 PM CDT | Tornado Warning | LUB | Hale | 49 min |
| May 11, 10:28 PM CDT | Severe Thunderstorm Warning | LUB | Lubbock | 62 min |
| May 11, 10:44 PM CDT | Tornado Warning | LUB | Hale | 61 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991
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.