Alert archive / Texas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 256, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at Sep 22, 2017, 7:00 PM CDT for Parmer County, Texas. It was in force for 15 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 22, 2017, 7:00 PM CDT (00:00 UTC)
- Expired
- Sep 22, 2017, 7:15 PM CDT
- In force
- 15 min
- Issued by
- NWS Lubbock, TX
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 70.0 mph
County Parmer County, TX
The radar
The Cannon AFB radar (KFDX), 77 km from the middle of the area, began a volume at 00:01 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
Midland Regional, TX (KMAF), launched 00:00Z, 0.0 hours before the alert went out and 292 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
- 839 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 1686 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -50 m²/s²
- 0-3 km storm-relative helicity
- 10 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 Lubbock, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 22, 6:34 PM CDT, 26 minutes earlier.
Area forecast discussion, Sep 22, 6:34 PM CDT, 26 minutes before
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</html>Hazardous weather outlook, Sep 22, 11:31 AM CDT, 7 hours 29 minutes before
Hazardous Weather Outlook National Weather Service Lubbock TX 1131 AM CDT Fri Sep 22 2017 TXZ021>044-231645- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale- Floyd-Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King- Yoakum-Terry-Lynn-Garza-Kent-Stonewall- 1131 AM CDT Fri Sep 22 2017 This Hazardous Weather Outlook is for the South Plains...Rolling Plains and the far Southern Texas Panhandle. .DAY ONE...This Afternoon and Tonight Isolated thunderstorms are expected to develop later this afternoon and evening across eastern New Mexico and move east- northeast into the extreme southwest Texas Panhandle and the northwest South Plains. The strongest storms will be capable of producing winds to 60 mph, hail up to the size of quarters and heavy rainfall with localized flooding. .DAYS TWO THROUGH SEVEN...Saturday through Thursday A pattern supportive of heavy rainfall with some flooding is likely to develop later this weekend and especially early next week. A few strong or briefly severe storms are also possible. .SPOTTER INFORMATION STATEMENT... Spotter activation is unlikely at this time.
In the hours before
Special weather statement, Sep 22, 2:46 PM CDT, 4 hours 14 minutes before
Special Weather Statement National Weather Service Lubbock TX 246 PM CDT Fri Sep 22 2017 TXZ021>044-231200- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale- Floyd-Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King- Yoakum-Terry-Lynn-Garza-Kent-Stonewall- Including the cities of Friona, Bovina, Farwell, Dimmitt, Hart, Tulia, Silverton, Quitaque, Memphis, Childress, Muleshoe, Littlefield, Olton, Plainview, Cedar Hill, Matador, Roaring Springs, Paducah, Hackberry, Morton, Levelland, Lubbock, Ralls, Crosbyton, Lorenzo, Spur, Dickens, Dumont, Finney, Grow, Guthrie, Denver City, Plains, Brownfield, Tahoka, ODonnell, Graham, Post, Jayton, and Aspermont 246 PM CDT Fri Sep 22 2017 ...Heavy Rain expected to develop over the Weekend and early Next Week along with a risk of Flooding... An upper level low pressure trough will slowly move into the southwest this weekend into early next week, pulling considerable moisture into the southern plains, and setting the stage for periods of moderate to heavy rain and potential flooding. A risk for flooding may develop as early as tonight near the New Mexico border as thunderstorms firing over eastern New Mexico move nearly due north close to the state line. Repeat storms over the same location could amount to an inch or two of rainfall and cause minor flooding. The threat for flooding will increase and gradually expand over the entire area during the weekend - and persist into early next week. Rainfall totals of several inches or more will be possible while local rain amounts in excess of five inches could lead to flash flooding. Heaviest rain totals are most likely across portions of the Rolling Plains though flooding will be a concern area-wide. Pay attention around low-lying areas that typically flood and stay aware of low water crossings over roads. Stay tuned to additional forecast updates and to rain rates and storm trends in your area.
The office that day
Everything else NWS Lubbock, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 2:13 PM CDT | Flash Flood Watch | LUB | Bailey, Castro, Cochran, Hockley, Lamb, Parmer and 2 more | 14 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2017Every severe thunderstorm warning in 2017
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.