Alert archive / Texas / Mesoscale Discussions in 2015
Mesoscale Discussion 680
The Storm Prediction Center issued this mesoscale discussion at May 16, 2015, 11:48 PM CDT for 40 counties in Texas. It was in force for 117 min.
The area
The outline as issued.
The facts
- Issued
- May 16, 2015, 11:48 PM CDT (04:48 UTC)
- Expired
- May 17, 2015, 1:45 AM CDT
- In force
- 117 min
- Issued by
- the Storm Prediction Center
All 40 counties
Bosque County, TX, Brown County, TX, Callahan County, TX, Coleman County, TX, Collin County, TX, Comanche County, TX, Concho County, TX, Cooke County, TX, Coryell County, TX, Crockett County, TX, Dallas County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Fannin County, TX, Grayson County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Kimble County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, San Saba County, TX, Schleicher County, TX, Somervell County, TX, Stephens County, TX, Sutton County, TX, Tarrant County, TX, Wise County, TX, Young County, TX
The radar
The San Angelo radar (KSJT), 81 km from the middle of the area, began a volume at 04:56 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, 4.8 hours before the alert went out and 244 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2901 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- -4 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 7:14 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Cooke, Haskell, Jack and 12 more | 91 min |
| May 16, 9:02 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 29 more | 58 min |
| May 16, 9:36 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coke, Coleman, Concho, Crockett and 15 more | 6 hr |
| May 16, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | Bosque, Collin, Comanche, Cooke, Dallas, Denton and 17 more | 3 hr |
| May 17, 1:48 AM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Collin, Comanche, Dallas, Denton and 22 more | 57 min |
| May 17, 2:25 AM CDT | Mesoscale Discussion | SPC | Edwards, Gillespie, Kerr, Kimble, Lampasas, Llano and 3 more | 95 min |
Nearby
Mesoscale Discussions in Texas, 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.