Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 274, NWS San Angelo, TX

May 27, 2015Coke County, Runnels County, Tom Green County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 27, 2015, 7:25 PM CDT for Coke County, Runnels County, Tom Green County, Texas. It was in force for 35 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 27, 2015, 7:25 PM CDT (00:25 UTC)
Expired
May 27, 2015, 8:00 PM CDT
In force
35 min
Issued by
NWS San Angelo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Coke County, TX, Runnels County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 41 km from the middle of the area, began a volume at 00:25 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

Midland Regional, TX (KMAF), launched 00:00Z, 0.4 hours before the alert went out and 179 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, Midland Regional, TX at 00:00Z on 2015-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1562 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, Midland Regional, TX at 00:00Z on 2015-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.193958Sfc1 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
1562 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
2097 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 7:02 PM CDTSevere Thunderstorm WarningSJTCoke, Concho, Runnels, Tom Green28 min
May 27, 8:07 PM CDTSpecial Weather StatementSJTShackelford38 min
May 27, 8:40 PM CDTSpecial Weather StatementSJTShackelford35 min
May 28, 4:20 AM CDTFlash Flood WatchSJTBrown, Callahan, Coke, Coleman, Concho, Crockett and 18 more21 hr
May 28, 3:20 PM CDTSpecial Weather StatementSJTFisher25 min
May 28, 3:45 PM CDTSpecial Weather StatementSJTFisher30 min
May 28, 4:18 PM CDTSpecial Weather StatementSJTHaskell42 min
May 28, 4:33 PM CDTSevere Thunderstorm WarningSJTHaskell42 min
May 28, 4:41 PM CDTAreal Flood AdvisorySJTFisher, Haskell, Jones2 hr
May 28, 4:52 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones, Shackelford, Throckmorton38 min
May 28, 5:02 PM CDTSpecial Weather StatementSJTFisher28 min
May 28, 5:27 PM CDTSevere Thunderstorm WarningSJTHaskell, Jones, Shackelford, Throckmorton48 min
May 28, 5:28 PM CDTAreal Flood AdvisorySJTShackelford, Throckmorton2 hr
May 28, 5:33 PM CDTSpecial Weather StatementSJTFisher, Jones42 min
May 28, 5:35 PM CDTSpecial Weather StatementSJTCallahan40 min
May 28, 6:00 PM CDTSpecial Weather StatementSJTNolan, Taylor45 min
May 28, 6:13 PM CDTSpecial Weather StatementSJTUpton47 min
May 28, 6:15 PM CDTSpecial Weather StatementSJTCallahan, Shackelford, Taylor60 min
May 28, 6:20 PM CDTAreal Flood AdvisorySJTCallahan, Fisher, Jones, Nolan, Taylor115 min
May 28, 6:20 PM CDTSpecial Weather StatementSJTIrion, Sterling25 min
May 28, 6:27 PM CDTFlash Flood WarningSJTThrockmorton2 hr
May 28, 6:33 PM CDTSevere Thunderstorm WarningSJTIrion, Sterling, Tom Green42 min
May 28, 6:41 PM CDTSevere Thunderstorm WarningSJTCrockett64 min
May 28, 6:44 PM CDTSevere Thunderstorm WarningSJTCoke, Nolan, Runnels, Sterling, Taylor46 min
May 28, 6:54 PM CDTSevere Thunderstorm WarningSJTBrown, Callahan, Coleman, Runnels, Shackelford, Taylor51 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015Every 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.