Alert archive / Texas / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 67, NWS San Angelo, TX

May 16, 2017Nolan County, Taylor County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 16, 2017, 11:43 PM CDT for Nolan County, Taylor County, 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: May 16, 2017, 11:43 PM CDT (04:43 UTC)
Expired: May 17, 2017, 12:30 AM CDT
In force: 47 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Nolan County, TX, Taylor County, TX

The radar

The Dyess AFB radar (KDYX), 88 km from the middle of the area, began a volume at 04:46 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 16, 7:29 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 4.7 hours before the alert went out and 197 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 5310 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 1 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 San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 16, 11:13 PM CDT, 30 minutes earlier.

Area forecast discussion, May 16, 11:13 PM CDT, 30 minutes before

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Hazardous weather outlook, May 16, 2:58 PM CDT, 8 hours 45 minutes before

Hazardous Weather Outlook
National Weather Service San Angelo TX
258 PM CDT Tue May 16 2017

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-172000-
Fisher-Nolan-Sterling-Coke-Runnels-Irion-Tom Green-Concho-
Crockett-Schleicher-Sutton-Haskell-Throckmorton-Jones-Shackelford-
Taylor-Callahan-Coleman-Brown-McCulloch-San Saba-Menard-Kimble-
Mason-
258 PM CDT Tue May 16 2017

This Hazardous Weather Outlook is for portions of west central
Texas.

.DAY ONE...This Afternoon and Tonight

Isolated thunderstorms will be possible this afternoon mainly
west of a Haskell, to San Angelo, to Ozona line. The better chance
of thunderstorms will be late tonight into early Wednesday
morning as a line of thunderstorms moves across the area. Some of
these storms may become strong to severe, with large hail,
damaging winds, and dangerous lightning being the main hazards.
However, a tornado will also be possible.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Additional thunderstorms will be possible across West Central
Texas from Thursday into the weekend. Some of these storms may
reach severe levels, especially on Thursday and Friday. Large hail
and damaging winds look to be the main hazards, although a tornado
cannot be ruled out.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed late this afternoon and
overnight.

In the hours before

Local storm report, May 16, 8:55 PM CDT, 2 hours 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
855 PM CDT TUE MAY 16 2017

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

0808 PM     HAIL             ROCHESTER               33.32N  99.86W
05/16/2017  E0.88 INCH       HASKELL            TX   TRAINED SPOTTER

&&

EVENT NUMBER SJT1700066

HG

Special weather statement, May 16, 11:29 PM CDT, 14 minutes before

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Special weather statement, May 16, 11:36 PM CDT, 7 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 7:54 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	51 min
May 16, 10:38 PM CDT	Severe Thunderstorm Warning	SJT	Sterling, Tom Green	52 min
May 16, 10:49 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	56 min
May 16, 10:58 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	62 min
May 16, 11:29 PM CDT	Special Weather Statement	SJT	Coke	46 min
May 16, 11:36 PM CDT	Special Weather Statement	SJT	Nolan	39 min
May 16, 11:36 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Tom Green	39 min
May 16, 11:54 PM CDT	Special Weather Statement	SJT	Coke, Tom Green	81 min
May 17, 12:07 AM CDT	Special Weather Statement	SJT	Irion	38 min
May 17, 12:14 AM CDT	Special Weather Statement	SJT	Callahan, Jones, Shackelford, Taylor	61 min
May 17, 12:26 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	49 min
May 17, 12:33 AM CDT	Special Weather Statement	SJT	Concho, Runnels	42 min
May 17, 1:06 AM CDT	Special Weather Statement	SJT	Callahan, Shackelford	24 min
May 17, 1:06 AM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion, Schleicher, Tom Green	39 min
May 17, 1:18 AM CDT	Special Weather Statement	SJT	Brown, Coleman, Concho, McCulloch, San Saba	42 min

Nearby

Severe Thunderstorm Warnings in Texas, 2017 Every severe thunderstorm warning in 2017

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.