Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 641
The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2018, 2:50 AM CDT for 38 counties in Texas. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Jun 4, 2018, 2:50 AM CDT (07:50 UTC)
- Expired
- Jun 4, 2018, 4:15 AM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 38 counties
Bell County, TX, Blanco County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Eastland County, TX, Erath County, TX, Fisher County, TX, Hamilton County, TX, Haskell County, TX, Irion County, TX, Jones County, TX, King County, TX, Knox County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Nolan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Stephens County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Williamson County, TX, Young County, TX
The radar
The San Angelo radar (KSJT), 96 km from the middle of the area, began a volume at 07:53 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, 7.8 hours before the alert went out and 256 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
- 2210 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 3, 8:39 PM CDT | Mesoscale Discussion | SPC | Culberson, Hudspeth, Jeff Davis, Loving, Presidio, Reeves | 96 min |
| Jun 3, 9:34 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Borden, Callahan, Coke, Coleman, Concho and 33 more | 7 hr |
| Jun 3, 11:21 PM CDT | Mesoscale Discussion | SPC | Borden, Dawson, Martin | 114 min |
| Jun 4, 6:46 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Cherokee, Ellis, Freestone, Henderson and 14 more | 119 min |
Nearby
Mesoscale Discussions in Texas, 2018Every mesoscale discussion in 2018
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.