Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 5, NWS Lubbock, TX

April 8, 20154 counties in Texas

NWS Lubbock, TX issued this severe thunderstorm warning at Apr 8, 2015, 7:58 PM CDT for 4 counties in Texas. It was in force for 47 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 8, 2015, 7:58 PM CDT (00:58 UTC)
Expired: Apr 8, 2015, 8:45 PM CDT
In force: 47 min
Issued by: NWS Lubbock, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Crosby County, TX, Dickens County, TX, Floyd County, TX, Motley County, TX

The radar

The Lubbock radar (KLBB), 75 km from the middle of the area, began a volume at 00:59 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 8, 7:23 PM CDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.0 hours before the alert went out and 165 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: 38 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 3303 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 125 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 8, 6:57 PM CDT, 1 hour 1 minute earlier.

Area forecast discussion, Apr 8, 6:57 PM CDT, 1 hour 1 minute before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LUBBOCK TX
657 PM CDT WED APR 8 2015

.UPDATE...
HAVE INCREASED POPS AS DRYLINE REMAINS POSITIONED FROM NEAR OR
JUST EAST OF TURKEY TO MATADOR TO RALLS TO O'DONNELL. STRONGEST
ACTIVITY CONTINUES TO STRETCH FROM NEAR CEE VEE BACK TO CROSBYTON
WHILE ADDITIONAL DEVELOPMENT TAKES PLACE NEAR POST TO LAKE ALAN
HENRY. ANOTHER LINE OF CONVECTION EXTENDING FROM LEVELLAND TO
BROWNFIELD PUSHING EAST HAS HAD A HISTORY OF PRODUCING 60+ MPH
WIND GUSTS...LIKELY RESULTING IN BLOWING DUST AND SUBSTANTIALLY
REDUCED VISIBILITIES IMPACTING THE SOUTHERN TO CENTRAL SOUTH
PLAINS.

&&

.AVIATION...
AREAS OF SHOWERS AND THUNDERSTORMS CONTINUE ACROSS THE REGION THIS
EVENING...BUT HAVE LEFT MENTION OUT OF FORECAST FOR NOW GIVEN
THEIR RELATIVELY ISOLATED TO SCATTERED NATURE OVERALL.
NONETHELESS...WILL SEE SOME CB IN FLIGHT ROUTES IN ALL DIRECTIONS
FOR THE NEXT FEW HOURS BEFORE FOCUS SHIFTS EAST OF KCDS OVERNIGHT.
SOUTH/SOUTHWEST WINDS WILL CONTINUE BLOWING NEAR 15-20 KNOTS WITH
GUSTS OF 25-30 KNOTS THIS EVENING...BEFORE DECREASING BY MIDNIGHT
AND VEERING NORTHWEST LATE TONIGHT INTO THURSDAY MORNING IN
ASSOCIATION WITH AN APPROACHING FRONTAL BOUNDARY. NO DETRIMENT TO
VFR CONDITIONS EXPECTED AT THIS TIME OUTSIDE OF ISOLATED WIND
GUSTS KICKING UP LOCALIZED AREAS OF DUST.

&&

.PREV DISCUSSION... /ISSUED 344 PM CDT WED APR 8 2015/

SHORT TERM...
CLOUD COVER CONTINUES TO STREAM ACROSS THE REGION AS UPPER LEVEL LOW
TRANSLATES FROM WY INTO THE UPPER MISSISSIPPI VALLEY OVER THE NEXT
24 HOURS. WEST SOUTHWESTERLY FLOW IS EXPECTED TO PERSIST THROUGH
THE PERIOD. THE RED FLAG SETUP HAS MORE OR LESS FIZZLED WITH THE
EXCEPTION OF OUR NORTHWESTERN ZONES. THE NORTHWEST HAS ACCUMULATED
SOME RED FLAG MINUTES TODAY WITH PARTIAL CLEARING. HOWEVER WE WILL
KEEP THE WARNING IN PLACE IN THE NORTHWEST FOR NOW GIVEN THE
INCREASING THREAT OF HIGH BASED STORMS WITH DRY
LIGHTNING/DOWNBURST POTENTIAL THIS AFTERNOON INTO THE EARLY
EVENING HOURS. FURTHER EAST...WILL CANCEL RED FLAG AS IT APPEARS
VERY UNLIKELY THAT WE WILL MAKE CRITERIA. STILL...THE TSTM THREAT
EXISTS. HAVE INCREASED POPS WEST OF THE DRYLINE TO HIGHLIGHT THE
THREAT FOR WHAT MAY END UP AS HIGH BASED THUNDERVIRGA. EAST OF THE
DRYLINE...NEAR A TRIPLE POINT IN THE SERN PANHANDLE...POPS HAVE
BEEN INCREASED TO SOLID CHANCE TO LIKELY. DRYLINE WILL ATTEMPT TO
RETREAT WESTWARD OVERNIGHT AS DRY COLD FRONT APPROACHES THE REGION
THURSDAY MORNING. THIS WILL BRING NORTHERLY WINDS TO THE AREA BY
THURSDAY AFTERNOON AND KNOCKING OFF A FEW DEGREES FROM THE HIGHS
OVER VALUES SEEN TODAY.

LONG TERM...
A COLD FRONT WILL PUSH DOWN INTO CENTRAL AND SOUTH TEXAS ON
THURSDAY. MOISTURE WILL BE VERY SLOW TO RECOVER ON FRIDAY WITH WINDS
SWINGING AROUND TO THE EAST. MOISTURE/HIGH THETA-E AIR WILL MOSTLY
STAY TO THE SOUTH ON FRIDAY BUT WILL SLOWLY INCREASE OVER THE
SOUTHERN ROLLING PLAINS. A LITTLE BIT OF AN INCREASE IN ISENTROPIC
LIFT MAY GARNER SOME PRECIPITATION ON FRIDAY NIGHT. ALTHOUGH
INSTABILITY WILL BE NEARLY NON EXISTENT DUE TO THE LACK OF MOISTURE.
THE HIGHER THETA-E AIR WILL NOT SUBSTANTIALLY MAKE IT BACK INTO THE
REGION UNTIL SATURDAY.

THE DRYLINE SHOULD NOT MOVE TOO FAR EAST DURING THE AFTERNOON ON
SATURDAY AND SUNDAY. WINDS ALOFT WILL NOT BACK UNTIL SUNDAY WITH THE
APPROACH OF THE DEEP TROUGH. MODELS SHOW WINDS AT 500MB BACKING AS
FAR TO THE SSE ON SUNDAY AFTERNOON. THIS TROUGH WILL TAKE ON AN
INCREASING NEGATIVE TILT AS IT MOVES ACROSS NORTHERN
MEXICO/SOUTHWESTERN US. ANALOG GUIDANCE ALSO SHOWS A SIGNIFICANT
NUMBER OF SEVERE EVENTS OCCURRING. OVERALL...CONFIDENCE IS INCREASING
AS MUCH AS IT CAN THIS FAR OUT IN A SEVERE WEATHER OCCURRENCE FOR
SATURDAY OR SUNDAY. ALTHOUGH AT THE MOMENT...SUNDAY SHOWS THE MOST
PROMISE.

&&

.PRELIMINARY POINT TEMPS/POPS...
FRIONA        84  40  71  36 /  20  10   0   0
TULIA         88  45  75  39 /  20  20   0   0
PLAINVIEW     88  46  76  41 /  20  20   0   0
LEVELLAND     87  46  78  42 /  20  20   0   0
LUBBOCK       89  50  80  44 /  20  20   0   0
DENVER CITY   87  47  77  44 /  20  20   0  10
BROWNFIELD    87  48  78  45 /  20  20   0   0
CHILDRESS     94  56  84  46 /  50  20   0   0
SPUR          89  56  83  47 /  20  20   0   0
ASPERMONT     91  62  87  49 /  20  20   0  10

&&

.LUB WATCHES/WARNINGS/ADVISORIES...
RED FLAG WARNING UNTIL 8 PM CDT THIS EVENING FOR TXZ021>023-027-
028-033-034-039.

&&

31

Hazardous weather outlook, Apr 8, 7:47 PM CDT, 11 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LUBBOCK TX
747 PM CDT WED APR 8 2015

TXZ021>044-100100-
PARMER-CASTRO-SWISHER-BRISCOE-HALL-CHILDRESS-BAILEY-LAMB-HALE-
FLOYD-MOTLEY-COTTLE-COCHRAN-HOCKLEY-LUBBOCK-CROSBY-DICKENS-KING-
YOAKUM-TERRY-LYNN-GARZA-KENT-STONEWALL-
747 PM CDT WED APR 8 2015

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

.DAY ONE...THIS EVENING AND TONIGHT

A RISK OF STRONG TO SEVERE THUNDERSTORMS EXISTS THIS EVENING
ACROSS WEST TEXAS. THE MOST SIGNIFICANT RISK IS ACROSS THE
EASTERN SOUTH PLAINS INTO THE ROLLING PLAINS AND FAR SOUTHEASTERN
TEXAS PANHANDLE...WHERE A SEVERE THUNDERSTORM WATCH IS IN EFFECT
UNTIL 1 AM THURSDAY MORNING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SEVERE THUNDERSTORMS MAY DEVELOP SATURDAY AND SUNDAY OVER
PORTIONS OF THE OUTLOOK AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS NEAR AND EAST OF THE CAPROCK ESCARPMENT ARE REQUESTED TO
ACTIVATE IF POSSIBLE THIS EVENING.

In the hours before

Local storm report, Apr 8, 7:10 PM CDT, 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
710 PM CDT WED APR 08 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0709 PM     TSTM WND GST     4 S LEVELLAND           33.52N 102.36W
04/08/2015  M76 MPH          HOCKLEY            TX   MESONET

            RECORDED BY WEST TEXAS MESONET.

&&

EVENT NUMBER LUB1500059

SCOBB

Local storm report, Apr 8, 7:12 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
712 PM CDT WED APR 08 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0711 PM     TSTM WND GST     REESE CENTER            33.59N 102.03W
04/08/2015  M62 MPH          LUBBOCK            TX   MESONET

            REPORTED BY WEST TEXAS MESONET.

&&

EVENT NUMBER LUB1500060

SCOBB

Special weather statement, Apr 8, 7:19 PM CDT, 39 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LUBBOCK TX
719 PM CDT WED APR 8 2015

TXZ026-090045-
CHILDRESS TX-
719 PM CDT WED APR 8 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CHILDRESS COUNTY UNTIL
745 PM CDT...

AT 719 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM OVER
CHILDRESS...MOVING NORTHEAST AT 60 MPH.

HALF INCH HAIL...WIND GUSTS UP TO 50 MPH...AND OCCASIONAL CLOUD TO
GROUND LIGHTNING WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
CHILDRESS AND KIRKLAND.

LAT...LON 3474 10000 3443 10000 3433 10017 3433 10028
      3441 10039
TIME...MOT...LOC 0019Z 229DEG 53KT 3443 10021

23

Local storm report, Apr 8, 7:21 PM CDT, 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
721 PM CDT WED APR 08 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0710 PM     TSTM WND GST     6 SSW WOLFFORTH         33.43N 102.05W
04/08/2015  M59 MPH          LUBBOCK            TX   MESONET

            REPORTED BY WEST TEXAS MESONET.

&&

EVENT NUMBER LUB1500061

SCOBB

Local storm report, Apr 8, 7:30 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LUBBOCK TX
730 PM CDT WED APR 08 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0650 PM     TSTM WND GST     4 S LEVELLAND           33.52N 102.36W
04/08/2015  M76 MPH          HOCKLEY            TX   MESONET

            RECORDED BY WEST TEXAS MESONET.

0705 PM     TSTM WND GST     REESE CENTER            33.59N 102.03W
04/08/2015  M62 MPH          LUBBOCK            TX   MESONET

            REPORTED BY WEST TEXAS MESONET.

0710 PM     TSTM WND GST     6 SSW WOLFFORTH         33.43N 102.05W
04/08/2015  M59 MPH          LUBBOCK            TX   MESONET

            REPORTED BY WEST TEXAS MESONET.

0716 PM     TSTM WND GST     4 SSW LUBBOCK           33.53N 101.88W
04/08/2015  M76 MPH          LUBBOCK            TX   NWS OFFICE

            OBSERVED BY WIND SENSOR AT NWS OFFICE.

0720 PM     TSTM WND GST     3 WNW LUBBOCK           33.59N 101.92W
04/08/2015  M63 MPH          LUBBOCK            TX   MESONET

            REPORTED BY WEST TEXAS MESONET.

&&

EVENT NUMBER LUB1500059 LUB1500060 LUB1500061 LUB1500062 LUB1500063

SCOBB

Local storm report, Apr 8, 7:57 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LUBBOCK TX
757 PM CDT WED APR 08 2015

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0745 PM     TSTM WND GST     5 ENE ABERNATHY         33.86N 101.76W
04/08/2015  M58 MPH          HALE               TX   MESONET

            REPORTED BY WEST TEXAS MESONET.

&&

EVENT NUMBER LUB1500064

SCOBB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 7:08 PM CDT	Severe Thunderstorm Warning	LUB	Hockley, Lubbock, Lynn, Terry	37 min
Apr 8, 7:19 PM CDT	Special Weather Statement	LUB	Childress	26 min
Apr 8, 7:31 PM CDT	Severe Thunderstorm Warning	LUB	Crosby, Lubbock	29 min
Apr 8, 7:34 PM CDT	Severe Thunderstorm Warning	LUB	Garza, Lynn	41 min
Apr 8, 8:14 PM CDT	Severe Thunderstorm Warning	LUB	Garza, Kent	46 min
Apr 8, 8:45 PM CDT	Severe Thunderstorm Warning	LUB	Dickens, Kent, King, Stonewall	30 min
Apr 8, 9:02 PM CDT	Special Weather Statement	LUB	Cottle	28 min
Apr 8, 9:15 PM CDT	Severe Thunderstorm Warning	LUB	Cottle, King, Stonewall	15 min
Apr 8, 9:33 PM CDT	Special Weather Statement	LUB	Cottle, King	12 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.