Alert archive / Texas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 27, NWS Lubbock, TX

May 11, 2020Briscoe County, Floyd County, Motley County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at May 11, 2020, 4:43 PM CDT for Briscoe County, Floyd County, Motley 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
May 11, 2020, 4:43 PM CDT (21:43 UTC)
Expired
May 11, 2020, 4:58 PM CDT
In force
15 min
Issued by
NWS Lubbock, TX
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

Counties Briscoe County, TX, Floyd County, TX, Motley County, TX

The radar

The Lubbock radar (KLBB), 92 km from the middle of the area, began a volume at 21:43 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 12:00Z, 9.7 hours before the alert went out and 273 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 12:00Z on 2020-05-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 12:00Z on 2020-05-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1311 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
248 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 May 11, 3:20 PM CDT, 1 hour 23 minutes earlier.

Area forecast discussion, May 11, 3:20 PM CDT, 1 hour 23 minutes before
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Hazardous weather outlook, May 11, 11:31 AM CDT, 5 hours 12 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Lubbock TX
1131 AM CDT Mon May 11 2020

TXZ021>044-121645-
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 Mon May 11 2020

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

.DAY ONE...This afternoon and tonight.

Scattered thunderstorms are expected to develop near or just east of
the Texas, New Mexico state line this afternoon and move east through
sunset. Initially, these storms will be capable of producing wind
gusts to 70 mph and hail to ping pong ball size. The tornado threat
is low but an isolated tornado may be possible with the initial storm
development. Storms will continue to move east southeast and
eventually develop into a line around sunset near the edge of the
Caprock. As the storms move into the Rolling Plains, the threat will
transition to more of a wind threat with gusts up to 70 mph with
isolated reports of hail up to quarter size.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Periods of thunderstorms will be possible this week into the weekend
across the region. From Wednesday through Saturday, temperatures
will warm and moisture will increase, creating an environment more
favorable for severe weather.

.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.

IssuedProductOfficeCountiesLasted
May 11, 6:38 PM CDTSevere Thunderstorm WarningLUBBailey, Lamb51 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.