Alert archive / Texas / Special Weather Statements in 2012
Special Weather Statement, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this special weather statement at Sep 29, 2012, 2:23 AM CDT for Atascosa County, Texas. It was in force for 67 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 29, 2012, 2:23 AM CDT (07:23 UTC)
- Expired
- Sep 29, 2012, 3:30 AM CDT
- In force
- 67 min
- Issued by
- NWS Austin/San Antonio, TX
County Atascosa County, TX
The radar
The Austin/San Antonio radar (KEWX), 112 km from the middle of the area, began a volume at 07:22 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
Corpus Christi, TX (KCRP), launched 00:00Z, 7.4 hours before the alert went out and 138 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
- 1843 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 639 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this special weather statement went out at Sep 28, 6:26 PM CDT, 7 hours 57 minutes earlier.
Area forecast discussion, Sep 28, 6:26 PM CDT, 7 hours 57 minutes before
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</html>Hazardous weather outlook, Sep 28, 5:42 AM CDT, 20 hours 41 minutes before
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</html>The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 7:30 PM CDT | Areal Flood Advisory | EWX | Maverick | 2 hr |
| Sep 28, 8:21 PM CDT | Flash Flood Warning | EWX | Maverick | 3 hr |
| Sep 28, 9:19 PM CDT | Areal Flood Advisory | EWX | Bexar, Comal, Guadalupe | 2 hr |
| Sep 28, 10:29 PM CDT | Flash Flood Warning | EWX | Zavala | 3 hr |
| Sep 28, 10:41 PM CDT | Flash Flood Warning | EWX | Dimmit | 3 hr |
| Sep 29, 12:14 AM CDT | Areal Flood Advisory | EWX | Bexar | 3 hr |
| Sep 29, 12:29 AM CDT | Special Weather Statement | EWX | Frio | 61 min |
| Sep 29, 12:53 AM CDT | Areal Flood Advisory | EWX | Frio, Zavala | 2 hr |
| Sep 29, 1:21 AM CDT | Flash Flood Warning | EWX | Frio, Zavala | 3 hr |
| Sep 29, 3:01 AM CDT | Areal Flood Advisory | EWX | Bexar | 119 min |
| Sep 29, 4:37 AM CDT | Areal Flood Advisory | EWX | Travis, Williamson | 113 min |
| Sep 29, 5:44 AM CDT | Areal Flood Advisory | EWX | Bexar, Guadalupe, Wilson | 106 min |
| Sep 29, 12:53 PM CDT | River Flood Warning | EWX | Val Verde | 8 hr |
| Sep 29, 3:33 PM CDT | Areal Flood Advisory | EWX | Karnes | 117 min |
| Sep 29, 4:57 PM CDT | Areal Flood Advisory | EWX | Gonzales, Lavaca | 2 hr |
| Sep 29, 6:38 PM CDT | Areal Flood Advisory | EWX | Lavaca | 112 min |
Nearby
Special Weather Statements in Texas, 2012Every special weather statement in 2012
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.