Alert archive / Texas / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 15, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Apr 9, 1992, 4:42 PM CDT for Hemphill County, Roberts County, Texas. It was in force for 63 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
- Apr 9, 1992, 4:42 PM CDT (21:42 UTC)
- Expired
- Apr 9, 1992, 5:45 PM CDT
- In force
- 63 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
Counties Hemphill County, TX, Roberts County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 9, 5:00 PM CDT | Hail 0.75 | Roberts, 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 12:00Z, 9.7 hours before the alert went out and 125 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
- 437 J/kg
- Mixed-layer CIN
- -240 J/kg
- Mixed-layer LCL
- 2140 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, Apr 9, 11:42 AM CDT, 5 hours before
TXZ001>009-NMZ005-009-013-OKZ001>003-100500- TEXAS/OKLAHOMA PANHANDLES THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE AMARILLO TX 1142 AM CDT THU APR 9 1992 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE TEXAS AND OKLAHOMA PANHANDLES THIS AFTERNOON AND EVENING. A VERY UNSTABLE AIRMASS...A WEAK COLD FRONT...AND A MINOR UPPER LEVEL IMPULSE WILL MAKE CONDITIONS FAVORABLE FOR THE DEVELOPMENT OF THUNDERSTORMS. ALTHOUGH ALL COUNTIES IN THE PANHANDLES RUN THE RISK OF HAVING THUNDERSTORMS...THE COUNTIES IN THE EASTERN HALVES HAVE THE HIGHEST RISK. LARGE HAIL...STRONG WINDS...AND HEAVY RAIN ARE THE MAIN THREAT FROM THE STORMS. SPOTTERS...EMERGENCY MANAGEMENT PERSONNEL...AND LAW ENFORCEMENT AGENCIES SHOULD REMAIN ALERT FOR POSSIBLE ACTIVATION THIS AFTERNOON AND EVENING. SP
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 7:17 PM CDT | Severe Thunderstorm Warning | AMA | Hall | 43 min |
| Apr 9, 3:59 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith | 61 min |
| Apr 9, 4:39 PM CDT | Severe Thunderstorm Warning | AMA | Parmer | 51 min |
| Apr 9, 6:18 PM CDT | Severe Thunderstorm Warning | AMA | Carson | 57 min |
| Apr 9, 6:24 PM CDT | Severe Thunderstorm Warning | AMA | Swisher | 66 min |
| Apr 9, 6:39 PM CDT | Severe Thunderstorm Warning | AMA | Randall | 66 min |
| Apr 9, 6:53 PM CDT | Tornado Warning | AMA | Carson | 37 min |
| Apr 9, 3:01 PM CDT | Severe Thunderstorm Warning | AMA | Curry | 59 min |
| Apr 9, 4:02 PM CDT | Severe Thunderstorm Warning | AMA | Curry | 28 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.