Alert archive / Texas / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 244
The Storm Prediction Center issued this severe thunderstorm watch at May 19, 2017, 2:44 AM CDT for 19 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 19, 2017, 2:44 AM CDT (07:44 UTC)
- Expired
- May 19, 2017, 9:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
Counties Callahan County, TX, Coke County, TX, Fisher County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Reagan County, TX, Runnels County, TX, Shackelford County, TX, Sterling County, TX, Taylor County, TX, Throckmorton County, TX, Tom Green County, TX, Upton County, TX
The radar
The San Angelo radar (KSJT), 95 km from the middle of the area, began a volume at 07:48 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
20 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 19, 2:55 AM CDT | Severe Thunderstorm Warning | MAF | Andrews, Ector, Midland | 65 min |
| May 19, 3:07 AM CDT | Severe Thunderstorm Warning | MAF | Glasscock, Howard, Martin, Midland, Mitchell | 53 min |
| May 19, 3:20 AM CDT | Severe Thunderstorm Warning | SJT | Nolan | 55 min |
| May 19, 3:28 AM CDT | Tornado Warning | MAF | Mitchell | 32 min |
| May 19, 3:53 AM CDT | Severe Thunderstorm Warning | MAF | Mitchell | 67 min |
| May 19, 4:04 AM CDT | Severe Thunderstorm Warning | MAF | Glasscock, Howard, Martin, Midland, Mitchell | 56 min |
| May 19, 4:11 AM CDT | Severe Thunderstorm Warning | SJT | Fisher, Nolan | 49 min |
| May 19, 4:26 AM CDT | Flash Flood Warning | MAF | Mitchell | 7 hr |
| May 19, 4:40 AM CDT | Flash Flood Warning | SJT | Nolan | 3 hr |
| May 19, 4:58 AM CDT | Severe Thunderstorm Warning | SJT | Nolan, Taylor | 62 min |
| May 19, 5:26 AM CDT | Flash Flood Warning | MAF | Glasscock, Howard, Martin, Midland | 3 hr |
| May 19, 5:49 AM CDT | Severe Thunderstorm Warning | SJT | Callahan, Jones, Shackelford, Taylor | 41 min |
| May 19, 6:34 AM CDT | Severe Thunderstorm Warning | SJT | Shackelford | 26 min |
| May 19, 6:48 AM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 42 min |
| May 19, 7:49 AM CDT | Severe Thunderstorm Warning | MAF | Mitchell, Scurry | 26 min |
| May 19, 8:00 AM CDT | Severe Thunderstorm Warning | MAF | Mitchell, Scurry | 60 min |
| May 19, 8:04 AM CDT | Severe Thunderstorm Warning | SJT | Fisher, Nolan | 41 min |
| May 19, 8:29 AM CDT | Flash Flood Warning | MAF | Glasscock, Howard, Martin, Midland | 3 hr |
| May 19, 8:44 AM CDT | Severe Thunderstorm Warning | SJT | Fisher, Jones, Nolan, Taylor | 46 min |
| May 19, 8:59 AM CDT | Severe Thunderstorm Warning | MAF | Mitchell, Scurry | 61 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 00:00Z, 7.7 hours before the alert went out and 124 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
- 4527 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- 181 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 7:47 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Clay, Wichita | 6 hr |
| May 18, 9:08 PM CDT | Mesoscale Discussion | SPC | Brown, Clay, Comanche, Cooke, Denton, Eastland and 10 more | 37 min |
| May 19, 2:17 AM CDT | Mesoscale Discussion | SPC | Callahan, Coke, Crane, Ector, Fisher, Glasscock and 9 more | 118 min |
| May 19, 7:03 AM CDT | Mesoscale Discussion | SPC | Callahan, Collin, Dallas, Denton, Eastland, Ellis and 15 more | 117 min |
| May 19, 10:41 AM CDT | Mesoscale Discussion | SPC | Archer, Clay, Cooke, Fisher, Haskell, Jack and 9 more | 94 min |
| May 19, 12:26 PM CDT | Tornado Watch | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 19 more | 7 hr |
| May 19, 2:45 PM CDT | Mesoscale Discussion | SPC | Callahan, Coke, Coleman, Concho, Fisher, Irion and 10 more | 60 min |
| May 19, 3:26 PM CDT | Tornado Watch | SPC | Archer, Baylor, Bosque, Clay, Collin, Comanche and 28 more | 11 hr |
| May 19, 5:50 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Concho, Eastland and 11 more | 115 min |
| May 19, 6:56 PM CDT | Mesoscale Discussion | SPC | Archer, Bosque, Brown, Clay, Collin, Comanche and 28 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2017Every severe thunderstorm watch 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.