Alert archive / Texas / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 151, NWS Amarillo, TX

May 23, 20194 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 23, 2019, 6:08 PM CDT for 4 counties in Texas. It was in force for 67 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 23, 2019, 6:08 PM CDT (23:08 UTC)
Expired: May 23, 2019, 7:15 PM CDT
In force: 67 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Carson County, TX, Gray County, TX, Hutchinson County, TX, Roberts County, TX

The radar

The Amarillo radar (KAMA), 71 km from the middle of the area, began a volume at 23:08 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
May 23, 3:11 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.1 hours before the alert went out and 71 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: 1941 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 815 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 107 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 6.3

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 May 23, 2:55 PM CDT, 3 hours 13 minutes earlier.

Area forecast discussion, May 23, 2:55 PM CDT, 3 hours 13 minutes before

Area Forecast Discussion
National Weather Service Amarillo TX
255 PM CDT Thu May 23 2019

.SHORT TERM...This Afternoon and Tonight...

**See Mesoscale Discussion issued at 109 PM CDT***

&&

.LONG TERM...Friday through Wednesday...

The upper level pattern is not expected to change very much
through the weekend, remaining favorable for moisture return and
modest mid-level flow. Broad cyclonic motion expected to remain
over the western CONUS with high pressure over the southeastern
states through the weekend.

For Friday, a few storms may linger across the southeastern zones
during the morning hours and thus will maintain the Flash Flood
Watch through 18z. Fog is also possible during the early morning,
especially for areas that receive soaking rainfall Thursday.
Theta-E advection picks up in the afternoon helping to push the
dry (cool) air north. However, the models may be overdoing this,
especially if early showers or storms linger (along with low
clouds), with connectively modified boundaries likely not being
resolved well. Moreover, confidence is not high with thunderstorms
activity, and this forecast leans a little more on the lower rain
probs based on this uncertainty. If the atmosphere is able to
recover and the dryline can sharpen (or other lingering
boundaries), strong to severe thunderstorms would be possible with
ample deep layer shear of 40 to 50 knots and potentially moderate
instability. A conditional tornado threat is also possible late
afternoon into the early evening as the low level jet sets up.
Again, this is all contingent on if storms are able to form at
all.

For Saturday and Sunday, a more classic dryline type setup looks
possible. Guidance currently suggest storms will convect on the
dryline near the TX/NM state line during the afternoon and then
move east. The environment along and east of the dryline would
support supercells capable of very large hail and damaging winds given
large MLCAPE of 2000 to 3000 J/kg, 40 to 50 knots of deep layer
shear and steep mid and low level lapse rates. The low level shear
will also increase during the late afternoon and early evening,
resulting in an increasing tornado threat during that time. There
are some hints at a subtle warm layer near 700mb in the pre-
convective environment (via Bufkit profiles), so there could be
some minor ML capping, but all indications are the convection
will have no issues initiating.

The upper trough axis is progged to shift east into the central
CONUS Monday into Tuesday which should push the moisture east of
our area. Thus, a break from severe weather chances is expected
during this time. Storm chances may return towards the end of the
week as hints of another western CONUS trough are showing up in
the long term guidance.

Ward

&&

.PRELIMINARY POINT TEMPS/POPS...
Amarillo TX                81  57  76  60  78 /  70  60  40  30  40
Beaver OK                  65  54  78  60  81 / 100  80  30  30  40
Boise City OK              55  44  77  51  79 /  80  10   5  10  60
Borger TX                  77  57  79  61  80 /  90  60  30  30  40
Boys Ranch TX              68  52  81  59  80 /  90  20  20  20  60
Canyon TX                  82  56  79  59  80 /  70  50  40  30  40
Clarendon TX               79  62  74  62  78 /  60  80  50  50  40
Dalhart TX                 62  46  79  52  80 /  70  10  10  10  60
Guymon OK                  58  49  78  56  80 /  90  30  20  20  50
Hereford TX                77  55  81  59  81 /  80  30  30  30  40
Lipscomb TX                74  60  76  62  80 /  90  90  40  40  30
Pampa TX                   75  58  75  61  78 /  80  80  40  40  40
Shamrock TX                78  62  75  63  78 /  40  90  50  50  30
Wellington TX              81  63  77  64  80 /  40  80  50  50  30

&&

.AMA Watches/Warnings/Advisories...
TX...Flash Flood Watch through Friday afternoon for the following
     zones: Armstrong...Carson...Collingsworth...Donley...Gray...
     Hansford...Hemphill...Hutchinson...Lipscomb...Moore...
     Ochiltree...Roberts...Sherman...Wheeler.

OK...Flash Flood Watch through Friday afternoon for the following
     zones: Beaver...Texas.

&&

98/7

Hazardous weather outlook, May 23, 3:25 PM CDT, 2 hours 43 minutes before

Hazardous Weather Outlook
National Weather Service Amarillo TX
325 PM CDT Thu May 23 2019

OKZ001>003-TXZ001>020-317-240830-
Cimarron-Texas-Beaver-Dallam-Sherman-Hansford-Ochiltree-Lipscomb-
Hartley-Moore-Hutchinson-Roberts-Hemphill-Oldham-Potter-Carson-
Gray-Wheeler-Deaf Smith-Randall-Armstrong-Donley-Collingsworth-
Palo Duro Canyon-
325 PM CDT Thu May 23 2019

This Hazardous Weather Outlook is for the Texas and Oklahoma
Panhandles.

.DAY ONE...This Afternoon and Tonight.

Scattered to numerous thunderstorms are developing this afternoon
and will continue through tonight. Main concerns are for large
hail and flash flooding, but a few tornadoes cannot be ruled out.
A Tornado Watch has been issued for roughly the eastern half of
the Texas Panhandle and far eastern Oklahoma Panhandle until 10 PM
CDT. A Flash Flood Watch is in effect for the central and eastern
Texas and Oklahoma Panhandles through tonight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Thunderstorms will be possible Friday through Sunday night across
the Panhandles and then again Tuesday across mainly the northern
and eastern portions of the Panhandles. Some thunderstorms could
become strong to severe Friday through Sunday evening with large
hail and thunderstorm wind gusts being the primary hazards.

Any slow moving thunderstorms or thunderstorms moving across the
same locations will result in heavy to very heavy rainfall which
could result in flooding or flash flooding issues. A Flash Flood
Watch is in effect until 1 PM Friday afternoon for mainly the central
and eastern portions of the Texas and Oklahoma Panhandles.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is likely today and tonight.

In the hours before

Special weather statement, May 23, 5:27 PM CDT, 41 minutes before

Special Weather Statement
National Weather Service Amarillo TX
527 PM CDT Thu May 23 2019

TXZ013-017-018-317-232300-
Palo Duro Canyon TX-Randall TX-Carson TX-Armstrong TX-
527 PM CDT Thu May 23 2019

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN RANDALL...
NORTHWESTERN ARMSTRONG AND SOUTHERN CARSON COUNTIES UNTIL 600 PM
CDT...

At 524 PM CDT, storm chasers reported weak landspouts along a
boundary extending from 3 miles northwest of Panhandle to near Palo
Duro Canyon. Movement was northeast at 20 mph.

Though organized storm rotation has not been detected, brief weak
landspouts are possible along this boundary.

Locations impacted include...
Panhandle, Washburn and Palo Duro Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Conditions are favorable for the formation of weak landspouts but
the threat posed by these is low. If a weak landspout is observed,
move indoors and stay away from windows.

&&

LAT...LON 3475 10193 3510 10163 3546 10145 3543 10117
      3475 10170
TIME...MOT...LOC 2224Z 237DEG 16KT 3538 10142 3494 10171

Ward

Local storm report, May 23, 5:47 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
547 PM CDT THU MAY 23 2019

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

0534 PM     HAIL             6 NE AMARILLO           35.26N 101.74W
05/23/2019  M0.88 INCH       POTTER             TX   OFFICIAL NWS OBS

&&

EVENT NUMBER AMA1900740

15

Local storm report, May 23, 5:49 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
549 PM CDT THU MAY 23 2019

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

0545 PM     HAIL             2 S BORGER              35.63N 101.40W
05/23/2019  M1.25 INCH       HUTCHINSON         TX   TRAINED SPOTTER

&&

EVENT NUMBER AMA1900741

15

Local storm report, May 23, 5:51 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
551 PM CDT THU MAY 23 2019

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

0547 PM     HAIL             1 NNE BORGER            35.67N 101.39W
05/23/2019  M1.00 INCH       HUTCHINSON         TX   TRAINED SPOTTER

&&

EVENT NUMBER AMA1900742

15

Local storm report, May 23, 5:53 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
553 PM CDT THU MAY 23 2019

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

0415 PM     HAIL             BRYANS CORNER           36.62N 100.82W
05/23/2019  E1.75 INCH       BEAVER             OK   PUBLIC

&&

EVENT NUMBER AMA1900743

15

Local storm report, May 23, 5:54 PM CDT, 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO TX
554 PM CDT THU MAY 23 2019

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

0550 PM     HAIL             2 SW BORGER             35.64N 101.43W
05/23/2019  E0.88 INCH       HUTCHINSON         TX   TRAINED SPOTTER

&&

EVENT NUMBER AMA1900744

15

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 3:48 AM CDT	Flash Flood Watch	AMA	Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 10 more	36 hr
May 23, 7:21 AM CDT	Special Weather Statement	AMA	Hartley	24 min
May 23, 7:40 AM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	50 min
May 23, 8:28 AM CDT	Severe Thunderstorm Warning	AMA	Dallam	47 min
May 23, 8:56 AM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	49 min
May 23, 10:10 AM CDT	Special Weather Statement	AMA	Oldham	35 min
May 23, 11:43 AM CDT	Severe Thunderstorm Warning	AMA	Moore, Sherman	47 min
May 23, 12:29 PM CDT	Special Weather Statement	AMA	Moore	31 min
May 23, 12:59 PM CDT	Special Weather Statement	AMA	Moore	31 min
May 23, 1:46 PM CDT	Severe Thunderstorm Warning	AMA	Hutchinson, Moore	44 min
May 23, 2:29 PM CDT	Special Weather Statement	AMA	Hutchinson	31 min
May 23, 2:36 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree	54 min
May 23, 3:04 PM CDT	Areal Flood Advisory	AMA	Hansford, Hutchinson, Ochiltree, Roberts	3 hr
May 23, 3:28 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Ochiltree	62 min
May 23, 3:49 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	41 min
May 23, 4:07 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hansford, Hutchinson, Ochiltree, Roberts	53 min
May 23, 4:26 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Hartley, Oldham, Potter, Randall	64 min
May 23, 4:40 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	50 min
May 23, 4:56 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Ochiltree, Roberts	64 min
May 23, 5:09 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter	66 min
May 23, 5:13 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Moore, Sherman	46 min
May 23, 5:22 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
May 23, 5:22 PM CDT	Tornado Warning	AMA	Hansford, Hutchinson, Ochiltree, Roberts	38 min
May 23, 5:27 PM CDT	Special Weather Statement	AMA	Carson	33 min
May 23, 5:28 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hutchinson, Moore, Potter, Randall	48 min
May 23, 5:47 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Deaf Smith, Oldham, Potter, Randall	58 min
May 23, 5:52 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hansford, Hutchinson, Roberts	38 min
May 23, 5:55 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Lipscomb, Ochiltree, Roberts	65 min
May 23, 5:57 PM CDT	Areal Flood Advisory	AMA	Hansford, Hutchinson, Ochiltree, Roberts	3 hr
May 23, 6:01 PM CDT	Tornado Warning	AMA	Carson, Gray, Hemphill, Hutchinson, Roberts	44 min
May 23, 6:15 PM CDT	Tornado Warning	AMA	Lipscomb, Ochiltree	45 min
May 23, 6:39 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	66 min
May 23, 6:44 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	76 min
May 23, 6:44 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Potter, Randall	61 min
May 23, 6:55 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Ochiltree, Roberts	65 min
May 23, 8:09 AM CDT	Special Weather Statement	AMA	Texas	36 min
May 23, 9:22 AM CDT	Special Weather Statement	AMA	Cimarron	38 min
May 23, 9:40 AM CDT	Severe Thunderstorm Warning	AMA	Texas	35 min
May 23, 10:13 AM CDT	Severe Thunderstorm Warning	AMA	Texas	47 min
May 23, 2:31 PM CDT	Special Weather Statement	AMA	Texas	29 min
May 23, 2:33 PM CDT	Special Weather Statement	AMA	Beaver	27 min
May 23, 4:24 PM CDT	Tornado Warning	AMA	Beaver	51 min
May 23, 6:18 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron, Texas	18 min

Nearby

Severe Thunderstorm Warnings in Texas, 2019 Every severe thunderstorm warning in 2019

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.