Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 78, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 10, 2012, 10:30 AM CDT for Frio County, Texas. It was in force for 60 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 10, 2012, 10:30 AM CDT (15:30 UTC)
- Expired
- May 10, 2012, 11:30 AM CDT
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Frio County, TX
The radar
The Laughlin AFB radar (KDFX), 123 km from the middle of the area, began a volume at 15:34 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 11:00 AM CDT | HAIL 1.75 | 1 W Dilley, TX | REPORTED BY BRISCO UNIT PRISON OFFICIALS |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 10, 5:42 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 3.5 hours before the alert went out and 176 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
- 1149 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 663 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 7.4
The text
As transmitted, in the capitals the NWS used until 2016.
457
WUUS54 KEWX 101530
SVREWX
TXC163-101630-
/O.NEW.KEWX.SV.W.0078.120510T1530Z-120510T1630Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1030 AM CDT THU MAY 10 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTH CENTRAL FRIO COUNTY...
* UNTIL 1130 AM CDT.
* AT 1024 AM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES WEST OF
DILLEY...AND MOVING NORTHEAST AT 15 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE DERBY.
THIS STORM WILL MOVE NORTHEAST ALONG HIGHWAY 85 MOVING ACROSS
DILLEY. VERY HEAVY RAINS UP TO 3 INCHES CAN ALSO BE EXPECTED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 2864 9934 2870 9935 2890 9902 2864 9899
2863 9919
TIME...MOT...LOC 1529Z 242DEG 13KT 2867 9926
$$1 follow-up statement
504
WWUS54 KEWX 101551
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1051 AM CDT THU MAY 10 2012
TXC163-101630-
/O.CON.KEWX.SV.W.0078.000000T0000Z-120510T1630Z/
FRIO TX-
1051 AM CDT THU MAY 10 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT
FOR SOUTH CENTRAL FRIO COUNTY...
AT 1048 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR DILLEY...
MOVING NORTHEAST AT 15 MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE DERBY. THIS STORM WILL
MOVE NORTHEAST OF DILLEY ALONG HIGHWAY 85.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 2864 9929 2872 9931 2890 9902 2864 9899
2863 9919
TIME...MOT...LOC 1551Z 242DEG 13KT 2871 9918
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 5:21 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 54 min |
| May 10, 6:12 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 63 min |
| May 10, 7:19 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 44 min |
| May 10, 9:29 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Zavala | 61 min |
| May 10, 10:33 AM CDT | Areal Flood Advisory | EWX | Frio | 117 min |
| May 10, 11:17 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 58 min |
| May 10, 11:32 AM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Wilson | 58 min |
| May 10, 12:02 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| May 10, 12:14 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 31 min |
| May 10, 12:20 PM CDT | Areal Flood Advisory | EWX | Atascosa, Frio | 2 hr |
| May 10, 12:40 PM CDT | Areal Flood Advisory | EWX | Bandera, Edwards, Kerr, Kinney, Real, Uvalde | 110 min |
| May 10, 1:04 PM CDT | Severe Thunderstorm Warning | EWX | Karnes, Wilson | 56 min |
| May 10, 1:15 PM CDT | Tornado Warning | EWX | Gonzales, Karnes, Wilson | 45 min |
| May 10, 1:42 PM CDT | Tornado Warning | EWX | Atascosa | 33 min |
| May 10, 1:57 PM CDT | Tornado Warning | EWX | DeWitt, Gonzales, Karnes, Wilson | 33 min |
| May 10, 2:19 PM CDT | Flash Flood Warning | EWX | Atascosa, DeWitt, Gonzales, Karnes, Wilson | 3 hr |
| May 10, 2:24 PM CDT | Severe Thunderstorm Warning | EWX | Karnes | 51 min |
| May 10, 2:42 PM CDT | Tornado Warning | EWX | Karnes | 48 min |
| May 10, 2:49 PM CDT | Flash Flood Warning | EWX | Bandera, Edwards, Kerr, Real, Uvalde | 3 hr |
| May 10, 3:05 PM CDT | Tornado Warning | EWX | Wilson | 40 min |
| May 10, 3:31 PM CDT | Tornado Warning | EWX | Karnes | 29 min |
| May 10, 3:40 PM CDT | River Flood Warning | EWX | Val Verde | 31 hr |
| May 10, 3:45 PM CDT | Areal Flood Advisory | EWX | DeWitt, Fayette, Gonzales, Lavaca | 105 min |
| May 10, 3:57 PM CDT | Tornado Warning | EWX | DeWitt, Karnes, Wilson | 33 min |
| May 10, 4:39 PM CDT | Flash Flood Warning | EWX | Bandera, Gillespie, Kerr | 81 min |
| May 10, 4:52 PM CDT | Severe Thunderstorm Warning | EWX | DeWitt, Gonzales, Karnes | 29 min |
| May 10, 5:58 PM CDT | Flash Flood Warning | EWX | Bandera, Blanco, Burnet, Edwards, Gillespie, Kendall and 4 more | 3 hr |
| May 10, 5:58 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick, Uvalde, Zavala | 47 min |
| May 10, 6:11 PM CDT | Areal Flood Advisory | EWX | DeWitt, Fayette, Karnes, Lavaca | 109 min |
| May 10, 6:41 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Frio, Zavala | 49 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2012Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.