Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 172, NWS Amarillo, TX

July 8, 2015Deaf Smith County, Randall County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 8, 2015, 8:36 PM CDT for Deaf Smith County, Randall County, Texas. It was in force for 54 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: Jul 8, 2015, 8:36 PM CDT (01:36 UTC)
Expired: Jul 8, 2015, 9:30 PM CDT
In force: 54 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 2.0 in
Wind: 70.0 mph

Counties Deaf Smith County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 58 km from the middle of the area, began a volume at 01:37 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
Jul 8, 5:09 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.6 hours before the alert went out and 58 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: 617 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 1384 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.1

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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 8, 6:34 PM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Jul 8, 6:34 PM CDT, 2 hours 2 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
634 PM CDT WED JUL 8 2015

.AVIATION...
FOR THE 00Z TAFS...SHOWERS AND TSTMS WILL IMPACT THE TX AND OK PNHDLS
THIS EVENING AND TONIGHT...AND HAVE RETAINED THE THREAT FOR
THUNDERSTORMS AT ALL TERMINAL SITES DURG THE FIRST FEW TO SEVERAL
HOURS OF THIS FCST. MVFR CIGS PSBL AT KGUY LATE TONIGHT AND THURSDAY
MORNING. LOWER CONFIDENCE IN MVFR CIGS FOR KDHT AND KAMA SO HAVE ONLY
INCLUDED A SCT DECK. ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS
EXPECTED TO DEVELOP LATER THURSDAY AFTERNOON...BUT HAVE NOT INCLUDED
THIS WEATHER ELEMENT IN THE TAFS DUE TO LOW CONFIDENCE IN WHERE
STORMS WILL FORM THIS FAR OUT IN TIME.

ANDRADE

&&

.PREV DISCUSSION... /ISSUED 400 PM CDT WED JUL 8 2015/

DISCUSSION...
ON AND OFF RAIN CHANCES THROUGH THE WEEK AHEAD...WITH GENERALLY
HIGHER CHANCES EXPECTED THROUGH THE END OF THIS WEEK AND LOWER
CHANCES EARLY NEXT WEEK. MODEL GUIDANCE ARE IN GOOD AGREEMENT ON THE
OVERALL WEATHER PATTERN THROUGH THE MIDDLE OF NEXT WEEK...SO
CONFIDENCE IN THE FORECAST IS FAIRLY HIGH FOR THIS TIME OF YEAR.
LOCALLY HEAVY RAINFALL WITH STORMS OVER THE NEXT FEW DAYS COULD LEAD
TO AREAS OF FLOODING/FLASH FLOODING.

NF

SHORT TERM...TODAY THROUGH FRIDAY...
AN UPPER-LEVEL LOW PRESSURE SYSTEM CENTERED OVER CENTRAL CALIFORNIA
IS APPARENT ON WATER VAPOR IMAGERY THIS AFTERNOON. AHEAD OF THIS
LOW...MONSOONAL MOISTURE IS BEING ADVECTED INTO THE SOUTHWEST U.S.
A WIDESPREAD AREA OF THUNDERSTORMS HAS DEVELOPED ACROSS NM THIS
AFTERNOON...AND A LEADING SHORTWAVE IS AIDING IN THUNDERSTORM
DEVELOPMENT ACROSS NORTHEAST NM AND THE WESTERN TX/OK PANHANDLES.
THESE SCATTERED STORMS ARE EVENTUALLY FORECAST TO GROW UPSCALE INTO
AN MCS AND MOVE SOUTH AND EAST ACROSS THE PANHANDLES THIS EVENING AND
TONIGHT. A FEW SEVERE WIND GUSTS AND/OR LARGE HAIL MAY BE POSSIBLE
WITH THESE STORMS AS THEY MOVE THROUGH...AS WELL AS HEAVY RAINFALL
LEADING TO LOCALIZED FLOODING AND FLASH FLOODING. A FEW SHOWERS AND
ELEVATED STORMS MAY LINGER ACROSS THE EASTERN PORTIONS OF THE
PANHANDLES TOMORROW MORNING...SO HAVE LEFT 20-30 POPS THROUGH 18Z TO
ACCOUNT FOR THAT. ANOTHER ROUND OF EVENING/OVERNIGHT STORMS WILL BE
POSSIBLE THURSDAY AND FRIDAY...WITH THE NORTHERN AND WESTERN PORTIONS
OF THE PANHANDLES FAVORED DUE TO MONSOONAL MOISTURE BENDING
NORTHEASTWARD ACROSS THE AREA.

LONG TERM...SATURDAY THROUGH WEDNESDAY...
RAIN CHANCES WILL DIMINISH OVER THE WEEKEND INTO EARLY NEXT
WEEK...THOUGH A RIDGE OF HIGH PRESSURE WILL BE BUILDING BACK OVERHEAD
BY SATURDAY AFTERNOON. A FEW THUNDERSTORMS WOULD NOT BE OUT OF THE
QUESTION WITH SOME REMNANT MOISTURE LEFT ACROSS THE REGION...THOUGH
MAIN THRUST OF MONSOON MOISTURE WILL BE DISPLACED BACK NM/AZ ONCE
MORE. THE HIGH PRESSURE WILL ALSO HELP TEMPERATURES CLIMB UP TO THE
MID-/UPPER-90S BY SUNDAY. THERE IS SOME HINT AT A WEAK COLD FRONT
EDGING INTO THE PANHANDLES LATE WEDNESDAY...THOUGH ONLY GFS
INDICATING THIS CURRENTLY.

NF

&&

.AMA WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
OK...NONE.

&&

Hazardous weather outlook, Jul 8, 5:25 PM CDT, 3 hours 11 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE AMARILLO TX
525 PM CDT WED JUL 8 2015

OKZ001>003-TXZ001>020-091030-
CIMARRON-TEXAS-BEAVER-DALLAM-SHERMAN-HANSFORD-OCHILTREE-LIPSCOMB-
HARTLEY-MOORE-HUTCHINSON-ROBERTS-HEMPHILL-OLDHAM-POTTER-CARSON-
GRAY-WHEELER-DEAF SMITH-RANDALL-ARMSTRONG-DONLEY-COLLINGSWORTH-
525 PM CDT WED JUL 8 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE TEXAS AND OKLAHOMA
PANHANDLES.

.DAY ONE...TONIGHT.

THUNDERSTORMS WILL CONTINUE TO DEVELOP AND MOVE ACROSS MOST OF THE
TEXAS AND OKLAHOMA PANHANDLES THROUGH TONIGHT. A SEVERE THUNDERSTORM
WATCH IS IN EFFECT FOR MOST OF THE PANHANDLES THROUGH MIDNIGHT...AS
THESE STORMS WILL BE CAPABLE OF PRODUCING HAIL UP TO PING PONG BALL
SIZE AND WIND GUSTS UP TO AROUND 70 MPH POSSIBLE. HEAVY RAIN WILL
ALSO BE POSSIBLE WITH THE STRONGER STORMS...WHICH COULD LEAD TO
LOCALIZED FLOODING OR FLASH FLOODING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

THUNDERSTORMS WILL BE POSSIBLE THURSDAY THROUGH FRIDAY NIGHT. WIDESPREAD
SEVERE WEATHER IS NOT EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE REQUESTED TO SUBMIT ANY REPORTS OF SEVERE WEATHER TO THE
NATIONAL WEATHER SERVICE.

NF

In the hours before

Special weather statement, Jul 8, 6:34 PM CDT, 2 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
634 PM CDT WED JUL 8 2015

TXZ011-016-090015-
DEAF SMITH TX-OLDHAM TX-
634 PM CDT WED JUL 8 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN OLDHAM AND NORTHERN DEAF
SMITH COUNTIES UNTIL 715 PM CDT...

AT 631 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 8 MILES SOUTHWEST OF ADRIAN...OR 20 MILES WEST OF
VEGA...MOVING EAST AT 35 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  VEGA...               SIMMS...              GLENRIO...
  ADRIAN...

THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA. 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 3519 10305 3534 10282 3531 10219 3493 10245
      3499 10305
TIME...MOT...LOC 2334Z 277DEG 29KT 3523 10276

KB

Special weather statement, Jul 8, 7:15 PM CDT, 1 hour 21 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
715 PM CDT WED JUL 8 2015

TXZ016-090100-
DEAF SMITH TX-
715 PM CDT WED JUL 8 2015

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL DEAF SMITH COUNTY UNTIL
800 PM CDT...

AT 713 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
STRONG THUNDERSTORM 6 MILES NORTHWEST OF SIMMS...OR 21 MILES
SOUTHWEST OF VEGA...MOVING EAST AT 20 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  SIMMS...

THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA. 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 3518 10229 3493 10230 3495 10287 3517 10285
TIME...MOT...LOC 0015Z 274DEG 18KT 3509 10274

KB

Special weather statement, Jul 8, 7:34 PM CDT, 1 hour 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
734 PM CDT WED JUL 8 2015

TXZ007-008-090115-
HUTCHINSON TX-MOORE TX-
734 PM CDT WED JUL 8 2015

...SIGNIFICANT WEATHER ADVISORY FOR EXTREME EASTERN MOORE AND
HUTCHINSON COUNTIES UNTIL 815 PM CDT...

AT 731 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
THUNDERSTORM WAS RAPIDLY DEVELOPING 4 MILES SOUTHWEST OF PRINGLE...OR
18 MILES NORTH OF BORGER...MOVING SOUTHEAST AT 25 MPH.

HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT
DANGEROUS LIGHTNING.

* LOCATIONS IMPACTED INCLUDE...
  BORGER...             STINNETT...           PRINGLE...

THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN
EFFECT FOR THIS AREA. 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.

TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND
UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED
ROADWAY...TURN AROUND DONT DROWN.

LAT...LON 3588 10164 3606 10149 3606 10120 3602 10108
      3586 10109 3563 10128 3562 10144
TIME...MOT...LOC 0034Z 303DEG 22KT 3589 10147

NF

Local storm report, Jul 8, 7:38 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
738 PM CDT WED JUL 08 2015

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

0730 PM     HAIL             CHANNING                35.68N 102.33W
07/08/2015  E2.75 INCH       HARTLEY            TX   STORM CHASER

            HAIL UP TO BASEBALL SIZE

&&

EVENT NUMBER AMA1500617

KB

Local storm report, Jul 8, 8:01 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
801 PM CDT WED JUL 08 2015

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

0754 PM     HAIL             7 S CHANNING            35.58N 102.33W
07/08/2015  E2.75 INCH       OLDHAM             TX   STORM CHASER

            BASEBALL SIZE HAIL

&&

EVENT NUMBER AMA1500619

LORENZEN

Local storm report, Jul 8, 8:08 PM CDT, 28 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
808 PM CDT WED JUL 08 2015

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

0739 PM     HAIL             CHANNING                35.68N 102.33W
07/08/2015  E2.50 INCH       HARTLEY            TX   PUBLIC

&&

EVENT NUMBER AMA1500620

EA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 7:15 PM CDT	Special Weather Statement	AMA	Deaf Smith	45 min
Jul 8, 7:17 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Oldham, Potter	58 min
Jul 8, 7:34 PM CDT	Special Weather Statement	AMA	Hutchinson	41 min
Jul 8, 7:42 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith	63 min
Jul 8, 7:45 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	60 min
Jul 8, 8:14 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Moore, Oldham, Potter, Randall	91 min
Jul 8, 8:21 PM CDT	Areal Flood Advisory	AMA	Deaf Smith	3 hr
Jul 8, 8:21 PM CDT	Tornado Warning Tornado observed	AMA	Oldham, Potter	26 min
Jul 8, 8:40 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter	65 min
Jul 8, 9:26 PM CDT	Severe Thunderstorm Warning	AMA	Randall	64 min
Jul 8, 9:35 PM CDT	Special Weather Statement	AMA	Oldham	40 min
Jul 8, 9:36 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
Jul 8, 9:44 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Potter, Randall	61 min
Jul 8, 9:49 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter	56 min
Jul 8, 10:26 PM CDT	Special Weather Statement	AMA	Armstrong	64 min
Jul 8, 10:56 PM CDT	Areal Flood Advisory	AMA	Dallam, Hartley, Moore	3 hr
Jul 8, 11:01 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	59 min
Jul 8, 11:11 PM CDT	Special Weather Statement	AMA	Donley	49 min
Jul 8, 11:22 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley	53 min
Jul 8, 11:31 PM CDT	Special Weather Statement	AMA	Armstrong	44 min
Jul 9, 12:29 AM CDT	Special Weather Statement	AMA	Armstrong	46 min
Jul 9, 12:35 AM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Potter	55 min
Jul 9, 1:27 AM CDT	Areal Flood Advisory	AMA	Armstrong, Collingsworth, Donley	3 hr
Jul 9, 1:42 AM CDT	Special Weather Statement	AMA	Armstrong	33 min
Jul 9, 1:55 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong	35 min
Jul 9, 2:35 AM CDT	Special Weather Statement	AMA	Armstrong	40 min
Jul 9, 2:38 AM CDT	Special Weather Statement	AMA	Potter	52 min
Jul 9, 2:41 AM CDT	River Flood Warning	AMA	Armstrong	19 hr
Jul 9, 3:10 AM CDT	Areal Flood Advisory	AMA	Armstrong, Carson, Deaf Smith, Oldham, Potter, Randall	3 hr
Jul 9, 3:42 AM CDT	Flash Flood Warning	AMA	Armstrong, Donley	3 hr
Jul 9, 4:20 AM CDT	Areal Flood Advisory	AMA	Hutchinson, Moore	2 hr
Jul 9, 6:16 PM CDT	Special Weather Statement	AMA	Oldham	44 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.