Alert archive / Texas / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 40, NWS Amarillo, TX

May 17, 2023Gray County, Roberts County, Wheeler County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 17, 2023, 6:40 PM CDT for Gray County, Roberts County, Wheeler County, Texas. It was in force for 69 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 17, 2023, 6:40 PM CDT (23:40 UTC)
Expired
May 17, 2023, 7:49 PM CDT
In force
69 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Gray County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 104 km from the middle of the area, began a volume at 23:41 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.7 hours before the alert went out and 103 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 12:00Z on 2023-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 12:00Z on 2023-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
7 J/kg
Mixed-layer CIN
-211 J/kg
Mixed-layer LCL
1881 m above ground
0-6 km bulk shear
3 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
41 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 Amarillo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 4:16 PM CDT, 2 hours 24 minutes earlier.

Area forecast discussion, May 17, 4:16 PM CDT, 2 hours 24 minutes before
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Hazardous weather outlook, May 17, 3:04 PM CDT, 3 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Amarillo TX
304 PM CDT Wed May 17 2023

OKZ001>003-TXZ001>020-317-181100-
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-
304 PM CDT Wed May 17 2023

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

.DAY ONE...Through Tonight.

Thunderstorms are expected to develop through tonight across the
Oklahoma and Texas Panhandles. A few storms may become strong to
severe, with large hail to around the size of quarters and
damaging winds to around 60 mph the primary hazards.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thunderstorms will be possible Thursday afternoon and night across
all of the Oklahoma and Texas Panhandles. A few storms may become
severe, with large hail and damaging winds the primary hazards. A
tornado cannot be ruled out as well. In addition, heavy rainfall
will likely accompany the strongest storms, which may lead to
localized flooding or flash flooding.

Additional thunderstorms will be possible Friday through Tuesday
across at least parts of the Oklahoma and Texas Panhandles. If
storms develop, they are expected to remain below severe levels at
this time.

.SPOTTER INFORMATION STATEMENT...

Limited spotter activation may be needed late this afternoon and
evening.

02

In the hours before

Special weather statement, May 17, 5:13 PM CDT, 1 hour 27 minutes before
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Special weather statement, May 17, 5:35 PM CDT, 1 hour 5 minutes before
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Special weather statement, May 17, 5:45 PM CDT, 55 minutes before
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Special weather statement, May 17, 6:01 PM CDT, 39 minutes before
Special Weather Statement
National Weather Service Amarillo TX
601 PM CDT Wed May 17 2023

TXZ014-172330-
Gray TX-
601 PM CDT Wed May 17 2023

...A strong thunderstorm will impact portions of southwestern Gray
County through 630 PM CDT...

At 600 PM CDT, Doppler radar was tracking a strong thunderstorm 8
miles southeast of Kingsmill, or 11 miles south of Pampa, moving east
at 10 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of southwestern Gray
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3541 10108 3545 10081 3523 10074 3523 10102
TIME...MOT...LOC 2300Z 264DEG 8KT 3538 10099

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

Ferguson
Special weather statement, May 17, 6:16 PM CDT, 24 minutes before
Special Weather Statement
National Weather Service Amarillo TX
616 PM CDT Wed May 17 2023

TXZ001-002-006-007-172345-
Hartley TX-Sherman TX-Dallam TX-Moore TX-
616 PM CDT Wed May 17 2023

...Strong thunderstorms will impact portions of southwestern Sherman,
eastern Dallam, western Moore and eastern Hartley Counties through
645 PM CDT...

At 615 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 13 miles northwest of Conlen to 11 miles east
of Dalhart to 7 miles north of Channing. Movement was east at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Conlen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3646 10216 3606 10202 3568 10200 3569 10235
      3594 10240 3605 10244 3639 10255
TIME...MOT...LOC 2315Z 267DEG 15KT 3633 10246 3606 10231 3578 10228

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...55 MPH

Ferguson
Special weather statement, May 17, 6:34 PM CDT, 6 minutes before
Special Weather Statement
National Weather Service Amarillo TX
634 PM CDT Wed May 17 2023

TXZ009-014-180000-
Gray TX-Roberts TX-
634 PM CDT Wed May 17 2023

...A strong thunderstorm will impact portions of northeastern Gray
and southeastern Roberts Counties through 700 PM CDT...

At 633 PM CDT, Doppler radar was tracking a strong thunderstorm 5
miles south of Miami, moving east at 10 mph.

HAZARD...Wind gusts of 50 to 55 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of northeastern Gray
and southeastern Roberts Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3556 10073 3567 10072 3566 10054 3547 10054
TIME...MOT...LOC 2333Z 277DEG 8KT 3562 10064

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...55 MPH

Ferguson

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 10:27 PM CDTSpecial Weather StatementAMAOldham33 min
May 17, 4:15 PM CDTSpecial Weather StatementAMADallam30 min
May 17, 4:41 PM CDTSpecial Weather StatementAMADallam34 min
May 17, 5:13 PM CDTSpecial Weather StatementAMADallam32 min
May 17, 5:35 PM CDTSpecial Weather StatementAMAGray25 min
May 17, 5:45 PM CDTSpecial Weather StatementAMADallam30 min
May 17, 6:01 PM CDTSpecial Weather StatementAMAGray29 min
May 17, 6:16 PM CDTSpecial Weather StatementAMADallam29 min
May 17, 6:34 PM CDTSpecial Weather StatementAMAGray26 min

Nearby

Severe Thunderstorm Warnings in Texas, 2023Every severe thunderstorm warning in 2023

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.