Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 221, NWS Lubbock, TX

July 3, 20175 counties in Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Jul 3, 2017, 9:34 PM CDT for 5 counties in Texas. It was in force for 41 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
Jul 3, 2017, 9:34 PM CDT (02:34 UTC)
Expired
Jul 3, 2017, 10:15 PM CDT
In force
41 min
Issued by
NWS Lubbock, TX
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Dickens County, TX, Garza County, TX, Kent County, TX, King County, TX, Stonewall County, TX

The radar

The Lubbock radar (KLBB), 111 km from the middle of the area, began a volume at 02:34 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 3, 5:37 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 2.6 hours before the alert went out and 212 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.

Skew-T log-pSkew-T log-p diagram, Midland Regional, TX at 00:00Z on 2017-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 96 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Midland Regional, TX at 00:00Z on 2017-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
96 J/kg
Mixed-layer CIN
-288 J/kg
Mixed-layer LCL
2333 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Jul 3, 6:14 PM CDT, 3 hours 20 minutes earlier.

Area forecast discussion, Jul 3, 6:14 PM CDT, 3 hours 20 minutes before
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Hazardous weather outlook, Jul 3, 11:25 AM CDT, 10 hours 9 minutes before
Hazardous Weather Outlook
National Weather Service Lubbock TX
1125 AM CDT Mon Jul 3 2017

TXZ021>044-041630-
Parmer-Castro-Swisher-Briscoe-Hall-Childress-Bailey-Lamb-Hale-
Floyd-Motley-Cottle-Cochran-Hockley-Lubbock-Crosby-Dickens-King-
Yoakum-Terry-Lynn-Garza-Kent-Stonewall-
1125 AM CDT Mon Jul 3 2017

This Hazardous Weather Outlook is for the South Plains...Rolling
Plains and the far Southern Texas Panhandle.

.DAY ONE...This Afternoon and Tonight
Thunderstorms may once again develop this evening across the TX
Panhandle and move southeast into parts of the South and Rolling
Plains during the late afternoon into the overnight hours. A few
storms could become marginally severe with wind gusts to 65 mph
and quarter sized hail.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday
Late evening and overnight thunderstorms are possible through
mid-week, with a few storms potentially becoming severe. By
Thursday, drier weather is expected to form across the region.

.SPOTTER INFORMATION STATEMENT...
Limited spotter activation may be needed later this afternoon and
tonight.

In the hours before

Local storm report, Jul 3, 7:56 PM CDT, 1 hour 38 minutes before
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Local storm report, Jul 3, 7:59 PM CDT, 1 hour 35 minutes before
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Special weather statement, Jul 3, 8:20 PM CDT, 1 hour 14 minutes before
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Local storm report, Jul 3, 8:51 PM CDT, 43 minutes before
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Local storm report, Jul 3, 9:09 PM CDT, 25 minutes before
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Local storm report, Jul 3, 9:34 PM CDT, 0 minutes before
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The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 3, 7:18 PM CDTSevere Thunderstorm WarningLUBFloyd, Hale, Hockley, Lamb, Lubbock27 min
Jul 3, 7:23 PM CDTSevere Thunderstorm WarningLUBHockley37 min
Jul 3, 7:46 PM CDTSevere Thunderstorm WarningLUBCrosby, Hockley, Lubbock29 min
Jul 3, 7:58 PM CDTSevere Thunderstorm WarningLUBHockley, Lubbock32 min
Jul 3, 8:20 PM CDTSpecial Weather StatementLUBLubbock25 min
Jul 3, 8:35 PM CDTAreal Flood AdvisoryLUBHockley, Lubbock55 min
Jul 4, 6:26 PM CDTSevere Thunderstorm WarningLUBParmer49 min

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.