Alert archive / Texas / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 55, NWS San Angelo, TX
NWS San Angelo, TX issued this severe thunderstorm warning at Apr 11, 2017, 12:08 PM CDT for 4 counties in Texas. It was in force for 52 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
- Apr 11, 2017, 12:08 PM CDT (17:08 UTC)
- Expired
- Apr 11, 2017, 1:00 PM CDT
- In force
- 52 min
- Issued by
- NWS San Angelo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Kimble County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX
The radar
The San Angelo radar (KSJT), 110 km from the middle of the area, began a volume at 17:09 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
Del Rio, TX (KDLF), launched 12:00Z, 5.1 hours before the alert went out and 205 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
- 2566 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 517 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 7.1
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 11, 7:02 AM CDT, 5 hours 6 minutes earlier.
Area forecast discussion, Apr 11, 7:02 AM CDT, 5 hours 6 minutes before
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</html>Hazardous weather outlook, Apr 11, 5:11 AM CDT, 6 hours 57 minutes before
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Special weather statement, Apr 11, 11:43 AM CDT, 25 minutes before
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</html>The office that day
Everything else NWS San Angelo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 7:41 PM CDT | Special Weather Statement | SJT | Crockett | 49 min |
| Apr 10, 7:47 PM CDT | Special Weather Statement | SJT | Mason | 43 min |
| Apr 10, 7:54 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 66 min |
| Apr 10, 8:06 PM CDT | Special Weather Statement | SJT | Mason | 39 min |
| Apr 10, 8:11 PM CDT | Severe Thunderstorm Warning | SJT | Mason | 49 min |
| Apr 10, 8:24 PM CDT | Areal Flood Advisory | SJT | Mason | 111 min |
| Apr 10, 8:48 PM CDT | Special Weather Statement | SJT | San Saba | 42 min |
| Apr 10, 8:56 PM CDT | Severe Thunderstorm Warning | SJT | Mason | 49 min |
| Apr 10, 8:59 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 61 min |
| Apr 10, 9:11 PM CDT | Flash Flood Warning | SJT | Crockett | 5 hr |
| Apr 10, 9:18 PM CDT | Special Weather Statement | SJT | Kimble | 27 min |
| Apr 10, 9:29 PM CDT | Flash Flood Warning | SJT | Kimble, Mason | 3 hr |
| Apr 10, 9:46 PM CDT | Special Weather Statement | SJT | Mason | 44 min |
| Apr 10, 9:59 PM CDT | Severe Thunderstorm Warning | SJT | Crockett | 46 min |
| Apr 10, 10:12 PM CDT | Severe Thunderstorm Warning | SJT | Mason | 63 min |
| Apr 10, 10:51 PM CDT | Severe Thunderstorm Warning | SJT | San Saba | 38 min |
| Apr 10, 10:55 PM CDT | Special Weather Statement | SJT | McCulloch | 20 min |
| Apr 10, 11:16 PM CDT | Severe Thunderstorm Warning | SJT | Mason | 59 min |
| Apr 11, 11:43 AM CDT | Special Weather Statement | SJT | Menard | 47 min |
| Apr 11, 12:55 PM CDT | Special Weather Statement | SJT | Mason | 50 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2017Every severe thunderstorm warning 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.