Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 23, NWS Lubbock, TX

April 17, 2015Lubbock County, Lynn County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 17, 2015, 12:35 AM CDT for Lubbock County, Lynn County, Texas. It was in force for 40 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
Apr 17, 2015, 12:35 AM CDT (05:35 UTC)
Expired
Apr 17, 2015, 1:15 AM CDT
In force
40 min
Issued by
NWS Lubbock, TX
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Lubbock County, TX, Lynn County, TX

The radar

The Lubbock radar (KLBB), 29 km from the middle of the area, began a volume at 05:35 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, 5.6 hours before the alert went out and 164 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 2015-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1094 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2015-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.19395878Sfc1 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
1094 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1903 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
58 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 Apr 16, 6:36 PM CDT, 5 hours 59 minutes earlier.

Area forecast discussion, Apr 16, 6:36 PM CDT, 5 hours 59 minutes before
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Hazardous weather outlook, Apr 16, 11:35 AM CDT, 13 hours before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LUBBOCK TX
1135 AM CDT THU APR 16 2015

TXZ021>044-171645-
PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE-
FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING-
YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL-
1135 AM CDT THU APR 16 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE EXTREME SOUTHERN TEXAS
PANHANDLE...SOUTH PLAINS AND ROLLING PLAINS.

.DAY ONE...TODAY AND TONIGHT
SCATTERED THUNDERSTORM ACTIVITY IS EXPECTED ACROSS THE OUTLOOK
AREA THIS AFTERNOON AND EVENING. THESE STORMS WILL BE CAPABLE OF
PRODUCING HAIL UP TWO INCHES IN DIAMETER...DAMAGING WIND
GUSTS...LOCALLY HEAVY RAINFALL...AND ISOLATED TORNADOES. THE
TORNADO THREAT WILL BE HIGHEST TO THE NORTH AND EAST OF A LINE
FROM TULIA...TO PLAINVIEW...TO FLOYDADA...TO PADUCAH.
TONIGHT...ADDITIONAL THUNDERSTORMS MAY DEVELOP ACROSS THE FAR
SOUTHERN TEXAS PANHANDLE AND WESTERN SOUTH PLAINS. ANY STORMS THAT
DEVELOP WILL BRING THE THREAT OF SEVERE WEATHER...INCLUDING
ISOLATED TORNADOES.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE FRIDAY AFTERNOON
AND EVENING...MAINLY ACROSS THE FAR SOUTHEAST TEXAS PANHANDLE AND
ROLLING PLAINS. THEREAFTER...THE THREAT OF WIDESPREAD HAZARDOUS
WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE NEEDED THIS AFTERNOON AND
EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 7:47 PM CDTSevere Thunderstorm WarningLUBLynn28 min
Apr 16, 8:14 PM CDTSevere Thunderstorm WarningLUBLynn31 min
Apr 16, 8:19 PM CDTSevere Thunderstorm WarningLUBLynn, Terry26 min
Apr 16, 8:44 PM CDTSevere Thunderstorm WarningLUBCrosby, Garza, Lubbock, Lynn16 min
Apr 16, 8:47 PM CDTSpecial Weather StatementLUBStonewall13 min
Apr 16, 9:00 PM CDTSpecial Weather StatementLUBCrosby30 min
Apr 16, 9:11 PM CDTSpecial Weather StatementLUBStonewall34 min
Apr 16, 9:24 PM CDTSpecial Weather StatementLUBSwisher36 min
Apr 16, 9:28 PM CDTSpecial Weather StatementLUBCrosby32 min
Apr 16, 9:55 PM CDTSpecial Weather StatementLUBYoakum35 min
Apr 16, 10:01 PM CDTSpecial Weather StatementLUBSwisher44 min
Apr 16, 10:23 PM CDTSpecial Weather StatementLUBHockley22 min
Apr 16, 10:36 PM CDTSpecial Weather StatementLUBHale, Hockley, Swisher, Terry39 min
Apr 16, 11:15 PM CDTSpecial Weather StatementLUBBriscoe, Floyd, Hale, Lubbock, Terry30 min
Apr 16, 11:47 PM CDTSpecial Weather StatementLUBLubbock, Terry28 min
Apr 17, 1:20 AM CDTSpecial Weather StatementLUBLubbock25 min
Apr 17, 3:00 AM CDTSpecial Weather StatementLUBGarza45 min
Apr 17, 3:08 AM CDTSevere Thunderstorm WarningLUBGarza37 min
Apr 17, 4:02 AM CDTSevere Thunderstorm WarningLUBDickens, Kent43 min
Apr 17, 9:53 AM CDTSpecial Weather StatementLUBKent22 min
Apr 17, 10:15 AM CDTSpecial Weather StatementLUBStonewall30 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015Every severe thunderstorm warning in 2015

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.