Alert archive / Texas / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 241, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 15, 2018, 5:32 PM CDT for Armstrong County, Randall County, Texas. It was in force for 71 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2018, 5:32 PM CDT (22:32 UTC)
- Expired
- Aug 15, 2018, 6:43 PM CDT
- In force
- 71 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Armstrong County, TX, Randall County, TX
The radar
The Amarillo radar (KAMA), 31 km from the middle of the area, began a volume at 22:34 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.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 10.5 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
- 737 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 1188 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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.
NWS Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 14, 5:48 PM CDT, 23 hours 44 minutes earlier.
Area forecast discussion, Aug 14, 5:48 PM CDT, 23 hours 44 minutes before
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</html>The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:03 PM CDT | Special Weather Statement | AMA | Armstrong, Donley | 57 min |
| Aug 14, 7:24 PM CDT | Special Weather Statement | AMA | Randall | 66 min |
| Aug 14, 8:09 PM CDT | Special Weather Statement | AMA | Deaf Smith | 36 min |
| Aug 14, 8:18 PM CDT | Special Weather Statement | AMA | Randall | 27 min |
| Aug 14, 8:22 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith, Randall | 98 min |
| Aug 15, 4:35 PM CDT | Special Weather Statement | AMA | Armstrong | 25 min |
| Aug 15, 5:04 PM CDT | Special Weather Statement | AMA | Armstrong | 26 min |
| Aug 15, 5:28 PM CDT | Special Weather Statement | AMA | Randall | 32 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2018Every severe thunderstorm warning in 2018
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.