Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 101, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jul 18, 2012, 5:40 PM CDT for Uvalde County, Texas. It was in force for 50 min. 3 reports 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
- Jul 18, 2012, 5:40 PM CDT (22:40 UTC)
- Expired
- Jul 18, 2012, 6:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Uvalde County, TX
The radar
The Laughlin AFB radar (KDFX), 33 km from the middle of the area, began a volume at 22:42 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 |
|---|---|---|---|
| Jul 18, 5:43 PM CDT | HAIL 1.75 | Uvalde, TX | GOLF BALL SIZED HAIL BROKE WINDOWS AT UVALDE MEMORIAL HOSPITAL |
| Jul 18, 5:50 PM CDT | TSTM WND DMG | Uvalde, TX | TREES BLOWN DOWN ALONG WITH POWER OUTAGES IN UVALDE |
| Jul 18, 5:50 PM CDT | HAIL 1.75 | Uvalde, TX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 10.7 hours before the alert went out and 88 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
- 1838 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 879 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- -29 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
527 WUUS54 KEWX 182240 SVREWX TXC463-182330- /O.NEW.KEWX.SV.W.0101.120718T2240Z-120718T2330Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 540 PM CDT WED JUL 18 2012 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL UVALDE COUNTY... * UNTIL 630 PM CDT. * AT 536 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP TO GOLF BALL SIZE. THIS STORM WAS LOCATED NEAR UVALDE...AND MOVING WEST AT ABOUT 30 MPH. THE STORM IS LIKELY TO MOVE BETWEEN CLINE AND LAGUNA WITHIN THE NEXT 15 TO 30 MINUTES. * SOME LOCATIONS IN THE WARNING INCLUDE LAGUNA AND CLINE. 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 2925 10010 2948 10003 2929 9970 2914 9976 TIME...MOT...LOC 2238Z 112DEG 28KT 2926 9987 $$
1 follow-up statement
754 WWUS54 KEWX 182326 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 626 PM CDT WED JUL 18 2012 TXC463-182330- /O.CON.KEWX.SV.W.0101.000000T0000Z-120718T2330Z/ UVALDE TX- 626 PM CDT WED JUL 18 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR WEST CENTRAL UVALDE COUNTY... THE SEVERE THUNDERSTORM THAT PRODUCED GULF BALL SIZED HAIL AND WIND GUSTS UP TO 60 MPH ACROSS UVALDE HAS DISSIPATED. HOWEVER...A STRONG STORM SOUTH OF UVALDE OR WEST OF BATESVILLE MOVING NORTHWARD AT ABOUT 20 MPH COULD BRING A SECOND ROUND OF HEAVY RAIN AND DAMAGING WINDS UP TO 50 MPH WITHIN THE NEXT 30 TO 45 MINUTES NEARBY UVALDE. STAY TUNED. LAT...LON 2925 10010 2948 10003 2937 9984 2919 9992 TIME...MOT...LOC 2316Z 122DEG 37KT 2933 10003 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 3:06 PM CDT | Areal Flood Advisory | EWX | Bexar | 114 min |
| Jul 18, 3:32 PM CDT | Flash Flood Warning | EWX | Atascosa, Bexar | 118 min |
| Jul 18, 6:45 PM CDT | Areal Flood Advisory | EWX | Zavala | 105 min |
| Jul 18, 6:52 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Maverick | 38 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.