Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 18, NWS Lubbock, TX

April 16, 2015Castro County, Lamb County, Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 16, 2015, 6:41 PM CDT for Castro County, Lamb County, Texas. It was in force for 49 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 16, 2015, 6:41 PM CDT (23:41 UTC)
Expired: Apr 16, 2015, 7:30 PM CDT
In force: 49 min
Issued by: NWS Lubbock, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Castro County, TX, Lamb County, TX

The radar

The Lubbock radar (KLBB), 85 km from the middle of the area, began a volume at 23:42 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.

Issued	Product	Office	Lasted
Apr 16, 4:40 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.7 hours before the alert went out and 117 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 246 J/kg
Mixed-layer CIN: -181 J/kg
Mixed-layer LCL: 2122 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 minutes earlier.

Area forecast discussion, Apr 16, 6:36 PM CDT, 5 minutes before

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Hazardous weather outlook, Apr 16, 11:35 AM CDT, 7 hours 6 minutes 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.

In the hours before

Special weather statement, Apr 16, 3:27 PM CDT, 3 hours 14 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
327 PM CDT THU APR 16 2015

TXZ043-162045-
KENT TX-
327 PM CDT THU APR 16 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN KENT COUNTY UNTIL
345 PM CDT...

AT 326 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
MILES NORTHWEST OF HUDD...OR 19 MILES NORTHEAST OF SNYDER...MOVING
NORTHEAST AT 35 MPH.

NICKEL SIZE HAIL...WIND GUSTS UP TO 50 MPH...AND FREQUENT CLOUD TO
GROUND LIGHTNING WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
CLAIREMONT.

LAT...LON 3297 10092 3328 10073 3316 10052 3308 10052
      3296 10064
TIME...MOT...LOC 2026Z 214DEG 32KT 3298 10079

Special weather statement, Apr 16, 3:45 PM CDT, 2 hours 56 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
345 PM CDT THU APR 16 2015

TXZ043-162100-
KENT TX-
345 PM CDT THU APR 16 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL KENT COUNTY UNTIL 400 PM
CDT...

AT 345 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
CLAIREMONT...OR 17 MILES SOUTHWEST OF JAYTON...MOVING NORTH AT 35
MPH.

NICKEL SIZE HAIL...WIND GUSTS UP TO 50 MPH...AND FREQUENT CLOUD TO
GROUND LIGHTNING WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
JAYTON AND CLAIREMONT.

LAT...LON 3339 10086 3333 10052 3296 10070 3297 10096
TIME...MOT...LOC 2045Z 199DEG 29KT 3308 10080

Special weather statement, Apr 16, 4:03 PM CDT, 2 hours 38 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
403 PM CDT THU APR 16 2015

TXZ036-037-043-162115-
DICKENS TX-CROSBY TX-KENT TX-
403 PM CDT THU APR 16 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CROSBY...CENTRAL
KENT AND SOUTHERN DICKENS COUNTIES UNTIL 415 PM CDT...

AT 401 PM CDT...DOPPLER RADAR WAS TRACKING A COUPLE STRONG
THUNDERSTORMS FROM 7 MILES SOUTH OF SPUR TO 10 MILES
SOUTHWEST OF CLAIREMONT...MOVING NORTH AT 25 MPH.

NICKEL SIZE HAIL...WIND GUSTS UP TO 50 MPH...AND FREQUENT CLOUD TO
GROUND LIGHTNING WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
SPUR...GIRARD AND CLAIREMONT.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3305 10072 3306 10096 3353 10104 3351 10052
TIME...MOT...LOC 2101Z 185DEG 22KT 3317 10080

Local storm report, Apr 16, 4:59 PM CDT, 1 hour 42 minutes before

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Local storm report, Apr 16, 5:24 PM CDT, 1 hour 17 minutes before

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Local storm report, Apr 16, 5:35 PM CDT, 1 hour 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 3:27 PM CDT	Special Weather Statement	LUB	Kent	18 min
Apr 16, 3:45 PM CDT	Special Weather Statement	LUB	Kent	15 min
Apr 16, 4:03 PM CDT	Special Weather Statement	LUB	Kent	12 min
Apr 16, 4:20 PM CDT	Severe Thunderstorm Warning	LUB	Dickens, Kent	25 min
Apr 16, 4:43 PM CDT	Severe Thunderstorm Warning	LUB	Dickens	32 min
Apr 16, 5:09 PM CDT	Severe Thunderstorm Warning	LUB	Floyd, Motley	36 min
Apr 16, 5:44 PM CDT	Severe Thunderstorm Warning	LUB	Hall, Motley	31 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every 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.