Alert archive / Texas / Mesoscale Discussions in 2015

Mesoscale Discussion 1045

June 17, 20155 counties in Oklahoma; 55 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2015, 5:31 AM CDT for 5 counties in Oklahoma; 55 counties in Texas. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
Jun 17, 2015, 5:31 AM CDT (10:31 UTC)
Expired
Jun 17, 2015, 7:00 AM CDT
In force
89 min
Issued by
the Storm Prediction Center
All 60 counties

Atoka County, OK, Bryan County, OK, Choctaw County, OK, McCurtain County, OK, Pushmataha County, OK, Anderson County, TX, Angelina County, TX, Austin County, TX, Bowie County, TX, Brazoria County, TX, Brazos County, TX, Burleson County, TX, Camp County, TX, Cherokee County, TX, Collin County, TX, Colorado County, TX, Dallas County, TX, Delta County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Fort Bend County, TX, Franklin County, TX, Freestone County, TX, Grayson County, TX, Gregg County, TX, Grimes County, TX, Harris County, TX, Henderson County, TX, Hopkins County, TX, Houston County, TX, Hunt County, TX, Kaufman County, TX, Lamar County, TX, Leon County, TX, Liberty County, TX, Limestone County, TX, Madison County, TX, Milam County, TX, Montgomery County, TX, Morris County, TX, Nacogdoches County, TX, Navarro County, TX, Polk County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rockwall County, TX, Rusk County, TX, San Jacinto County, TX, Smith County, TX, Titus County, TX, Trinity County, TX, Upshur County, TX, Van Zandt County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Wood County, TX

The radar

The Ft Hood radar (KGRK), 167 km from the middle of the area, began a volume at 10:35 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

Fort Worth, TX (KFWD), launched 00:00Z, 10.5 hours before the alert went out and 221 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, Fort Worth, TX at 00:00Z on 2015-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 174 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, Fort Worth, TX at 00:00Z on 2015-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
174 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
937 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 17, 12:08 PM CDTMesoscale DiscussionSPCLatimer, LeFlore, McCurtain, Pushmataha2 hr
Jun 16, 10:50 PM CDTMesoscale DiscussionSPCAnderson, Austin, Bastrop, Bell, Brazoria, Brazos and 47 more85 min
Jun 16, 11:41 PM CDTTornado WatchSPCAustin, Brazoria, Brazos, Burleson, Colorado, Fayette and 15 more7 hr
Jun 17, 3:01 AM CDTMesoscale DiscussionSPCAustin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 11 more119 min
Jun 17, 7:47 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Austin, Brazoria, Brazos, Burleson and 50 more2 hr
Jun 17, 5:14 PM CDTMesoscale DiscussionSPCDelta, Franklin, Hopkins, Hunt, Lamar, Rains and 4 more2 hr

Nearby

Mesoscale Discussions in Texas, 2015Mesoscale Discussions in Oklahoma, 2015Every mesoscale discussion 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.