Alert archive / Texas / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 22, NWS Lubbock, TX
NWS Lubbock, TX issued this severe thunderstorm warning at May 14, 2018, 4:26 PM CDT for Floyd County, Hale County, Texas. It was in force for 64 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
- May 14, 2018, 4:26 PM CDT (21:26 UTC)
- Expired
- May 14, 2018, 5:30 PM CDT
- In force
- 64 min
- Issued by
- NWS Lubbock, TX
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Floyd County, TX, Hale County, TX
The radar
The Lubbock radar (KLBB), 52 km from the middle of the area, began a volume at 21:27 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, 9.4 hours before the alert went out and 129 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3144 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 128 m²/s²
- 0-3 km storm-relative helicity
- 104 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 May 14, 3:45 PM CDT, 41 minutes earlier.
Area forecast discussion, May 14, 3:45 PM CDT, 41 minutes before
Area Forecast Discussion National Weather Service Lubbock TX 345 PM CDT Mon May 14 2018 .DISCUSSION... Early morning convection moving off the Trans-pecos region that was not well depicted in shorterm guidance has spread some cirrus over the western South Plains along the NM/TX state line and may hold back some of the convection expected to begin over the next couple of hours but for only a short amount of time. A second round of convection in the the same area of the Trans-Pecos has initiated as expected. SPC analysis shows strong surfaced base CAPE from 2500 J/Kg in the southeast South Plains to 5000 J/kg over Childress and little to no inhibition. This will lead to more coverage and intensity than what unfolded last night in the northern Rolling Plains near Estelline. Anemic bulk shear (20-25kts) and low 0-1km helicity should lead to a more multicelluar mode of storms as mentioned in earlier update. Can't rule out a weakly rotating storm at this point, where the largest hail would be expected up to golf ball size with maybe even larger in isolated spots. Wind gusts up to 70 mph will also be possible with the strongest storms. The southern South Plains and southern Rolling Plains are also in the exit region of relatively local H50 divergence while H70 temps are around 10-11C which is a couple of degrees cooler than yesterday leading to steeper lapse rates. Tornadoes are not much of a concern given poor ventilation for updrafts, elevated bases, weak steering flow and low 0-1km helicity. Overall, rinse and repeat for tomorrow at the surface as another dryline sets up between the I27/87 corridor and the escarpment. But divergent flow from the trough to our west today will become more zonal and eventually northwest by the evening hours which will shift mid and upper level instability further south toward the I20 corridor. Given lower dewpoints and best instability to our south, convection in our area is most likely going to be elevated along a weak warm front as surface low pressure deepens in eastern New Mexico. Storm chances persist for most of our CWA through the week as persistent trough to our west remains favorable for daily dryline development, but overall weak forcing to limit vigorous widespread convection. The increased moisture will help keep temperatures in the low to mid 90s and not the 100 degree days we've seen recently with steady mild overnights. && .LUB WATCHES/WARNINGS/ADVISORIES... None. && 55
Hazardous weather outlook, May 14, 11:24 AM CDT, 5 hours 2 minutes before
Hazardous Weather Outlook National Weather Service Lubbock TX 1124 AM CDT Mon May 14 2018 TXZ021>044-150430- Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale- Floyd-Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King- Yoakum-Terry-Lynn-Garza-Kent-Stonewall- 1124 AM CDT Mon May 14 2018 This Hazardous Weather Outlook is for the South Plains, Rolling Plains and the far Southern Texas Panhandle. .DAY ONE...This Afternoon and Tonight There is a risk of severe thunderstorms this afternoon and evening mainly east of a Silverton to Tahoka line. Hail to the size of golf balls and wind gusts to 60 mph are the primary threats. A rangeland fire danger statement is in effect for elevated fire weather conditions along and west of a Dimmitt to Brownfield line through 7 PM this evening. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Tuesday afternoon, storms should develop east of the dryline and south of a cold front. Storms that do develop will be capable of large hail and strong wind gusts. Through much of the rest of the week mainly afternoon and evening strong to severe thunderstorms will be possible. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested today.
In the hours before
Local storm report, May 14, 4:08 PM CDT, 18 minutes before
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</html>The office that day
Everything else NWS Lubbock, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 7:25 PM CDT | Severe Thunderstorm Warning | LUB | Childress, Hall | 65 min |
| May 13, 7:30 PM CDT | Areal Flood Advisory | LUB | Childress, Hall | 2 hr |
| May 13, 8:04 PM CDT | Severe Thunderstorm Warning | LUB | Childress, Hall | 26 min |
| May 13, 8:10 PM CDT | Severe Thunderstorm Warning | LUB | Childress, Cottle, Hall, Motley | 65 min |
| May 13, 8:26 PM CDT | Severe Thunderstorm Warning | LUB | Childress, Hall | 64 min |
| May 13, 8:59 PM CDT | Flash Flood Warning | LUB | Childress, Cottle, Hall, Motley | 2 hr |
| May 13, 9:12 PM CDT | Severe Thunderstorm Warning | LUB | Childress, Cottle, Hall | 63 min |
| May 13, 10:10 PM CDT | Severe Thunderstorm Warning | LUB | Childress | 41 min |
| May 13, 10:30 PM CDT | Areal Flood Advisory | LUB | Childress | 90 min |
| May 14, 4:17 PM CDT | Severe Thunderstorm Warning | LUB | Dickens, Kent, King, Stonewall | 58 min |
| May 14, 4:54 PM CDT | Severe Thunderstorm Warning | LUB | Floyd, Hale | 36 min |
| May 14, 5:08 PM CDT | Severe Thunderstorm Warning | LUB | Dickens, Kent, King, Motley, Stonewall | 67 min |
| May 14, 5:37 PM CDT | Severe Thunderstorm Warning | LUB | Childress | 23 min |
| May 14, 5:41 PM CDT | Areal Flood Advisory | LUB | Briscoe, Swisher | 58 min |
| May 14, 5:42 PM CDT | Severe Thunderstorm Warning | LUB | Motley | 33 min |
| May 14, 6:06 PM CDT | Severe Thunderstorm Warning | LUB | Childress, Hall, Motley | 54 min |
| May 14, 6:53 PM CDT | Severe Thunderstorm Warning | LUB | Childress | 37 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.