Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 154, NWS Lubbock, TX

May 29, 20154 counties in Texas

NWS Lubbock, TX issued this severe thunderstorm warning at May 29, 2015, 8:31 PM CDT for 4 counties in Texas. It was in force for 44 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 29, 2015, 8:31 PM CDT (01:31 UTC)
Expired
May 29, 2015, 9:15 PM CDT
In force
44 min
Issued by
NWS Lubbock, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Castro County, TX, Hale County, TX, Lamb County, TX, Swisher County, TX

The radar

The Lubbock radar (KLBB), 75 km from the middle of the area, began a volume at 01:35 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 watch it was issued in

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

IssuedProductOfficeLasted
May 29, 3:44 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.5 hours before the alert went out and 108 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, Amarillo Airport, TX at 00:00Z on 2015-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 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, Amarillo Airport, TX at 00:00Z on 2015-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
38 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1987 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

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 29, 6:34 PM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, May 29, 6:34 PM CDT, 1 hour 57 minutes before
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Hazardous weather outlook, May 29, 11:32 AM CDT, 8 hours 59 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LUBBOCK TX
1132 AM CDT FRI MAY 29 2015

TXZ021>044-301645-
PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE-
FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING-
YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL-
1132 AM CDT FRI MAY 29 2015

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

STRONG TO SEVERE STORMS MAY DEVELOP THIS AFTERNOON INTO EARLY
EVENING BRINGING LARGE HAIL TO THE SIZE OF BASEBALLS AND DAMAGING
WIND GUSTS OF 70 MPH. TONIGHT INTO EARLY SATURDAY...A COLD FRONT
WILL BRING WIDESPREAD SHOWER AND THUNDERSTORMS WHICH MAY PRODUCE
LOCALIZED FLOODING OR FLASH FLOODING. LOCAL RAIN TOTALS GREATER
THAN THREE INCHES WILL BE POSSIBLE. A FLASH FLOOD WATCH IS IN
EFFECT UNTIL 10 AM SATURDAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING.

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 8:01 PM CDTSpecial Weather StatementLUBBailey, Castro, Parmer29 min
May 29, 8:29 PM CDTSpecial Weather StatementLUBBailey, Castro, Lamb31 min
May 29, 8:48 PM CDTSevere Thunderstorm WarningLUBBailey, Hale, Lamb27 min
May 29, 9:12 PM CDTSevere Thunderstorm WarningLUBCochran, Hockley, Lamb, Terry, Yoakum48 min
May 29, 9:13 PM CDTSevere Thunderstorm WarningLUBBailey, Briscoe, Castro, Floyd, Hale, Lamb and 1 more47 min
May 29, 9:32 PM CDTSpecial Weather StatementLUBLubbock28 min
May 29, 10:08 PM CDTSpecial Weather StatementLUBBriscoe, Floyd, Swisher37 min
May 29, 10:11 PM CDTSevere Thunderstorm WarningLUBCochran, Hockley, Lubbock, Lynn, Terry, Yoakum34 min
May 29, 10:17 PM CDTAreal Flood AdvisoryLUBLubbock3 hr
May 29, 10:40 PM CDTAreal Flood AdvisoryLUBBriscoe, Swisher2 hr
May 29, 10:45 PM CDTSpecial Weather StatementLUBBriscoe30 min
May 29, 11:22 PM CDTSpecial Weather StatementLUBGarza, Kent, Lynn23 min
May 29, 11:59 PM CDTSpecial Weather StatementLUBKent31 min
May 30, 12:38 AM CDTSpecial Weather StatementLUBStonewall22 min
May 30, 1:03 AM CDTSpecial Weather StatementLUBStonewall27 min
May 30, 1:29 AM CDTSpecial Weather StatementLUBStonewall31 min
May 30, 1:40 AM CDTSpecial Weather StatementLUBCrosby, Dickens, Floyd, Lubbock, Motley50 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.