Alert archive / Texas / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 221, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at Sep 1, 2020, 6:14 PM CDT for Briscoe County, Childress County, Hall County, Texas. It was in force for 61 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
- Sep 1, 2020, 6:14 PM CDT (23:14 UTC)
- Expired
- Sep 1, 2020, 7:15 PM CDT
- In force
- 61 min
- Issued by
- NWS Lubbock, TX
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.25 in
- Wind
- 70.0 mph
Counties Briscoe County, TX, Childress County, TX, Hall County, TX
The radar
The Amarillo radar (KAMA), 121 km from the middle of the area, began a volume at 23:17 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 1, 3:46 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.2 hours before the alert went out and 120 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
- 100 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1063 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 Lubbock, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 2:49 PM CDT, 3 hours 25 minutes earlier.
Area forecast discussion, Sep 1, 2:49 PM CDT, 3 hours 25 minutes before
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</html>Hazardous weather outlook, Sep 1, 11:41 AM CDT, 6 hours 33 minutes before
Hazardous Weather Outlook National Weather Service Lubbock TX 1141 AM CDT Tue Sep 1 2020 TXZ021>044-021645- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale-Floyd- Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King-Yoakum- Terry-Lynn-Garza-Kent-Stonewall- 1141 AM CDT Tue Sep 1 2020 This Hazardous Weather Outlook is for the South Plains, Rolling Plains and the far Southern Texas Panhandle. .DAY ONE...This afternoon and tonight. Thunderstorms are expected to increase in coverage and intensity after 2 PM this afternoon. Some of the stronger storms could produce downburst winds to 65 mph and hail up to the size of quarters. Additionally heavy rainfall from stronger storms could lead to localized flooding. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Periodic episodes of isolated to scattered thunderstorms, some with strong downburst potential, will exist over the next week. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. Please relay any information about severe weather to the NWS while following local, state, and CDC guidelines.
The office that day
Everything else NWS Lubbock, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 6:49 PM CDT | Tornado Warning | LUB | Briscoe, Hall | 26 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2020Every severe thunderstorm warning in 2020
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.