Alert archive / Texas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 9, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 29, 2011, 10:28 PM CDT for Dimmit County, Maverick County, Zavala County, Texas. It was in force for 47 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
- Mar 29, 2011, 10:28 PM CDT (03:28 UTC)
- Expired
- Mar 29, 2011, 11:15 PM CDT
- In force
- 47 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Dimmit County, TX, Maverick County, TX, Zavala County, TX
The radar
The Laughlin AFB radar (KDFX), 94 km from the middle of the area, began a volume at 03:31 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 |
|---|---|---|---|
| Mar 29, 10:38 PM CDT | HAIL 1 | 7 Se Eagle Pass, TX |
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 |
|---|---|---|---|
| Mar 29, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 3.5 hours before the alert went out and 119 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
- 1803 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1570 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- -83 m²/s²
- Significant tornado parameter
- -0.3
- Supercell composite
- -3.3
The text
As transmitted, in the capitals the NWS used until 2016.
489
WUUS54 KEWX 300328
SVREWX
TXC127-323-507-300415-
/O.NEW.KEWX.SV.W.0009.110330T0328Z-110330T0415Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1028 PM CDT TUE MAR 29 2011
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN DIMMIT COUNTY...
MAVERICK COUNTY...
SOUTHWESTERN ZAVALA COUNTY...
* UNTIL 1115 PM CDT.
* AT 1027 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 11 MILES NORTHEAST OF
ROSITA NORTH TO ROSITA SOUTH TO 24 MILES SOUTHWEST OF ROSITA
SOUTH...OR ALONG A LINE EXTENDING FROM 14 MILES EAST OF EAGLE PASS
TO 9 MILES SOUTH OF EAGLE PASS TO 25 MILES WEST OF EL INDIO...AND
MOVING SOUTHEAST AT 25 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE COMETA...WINTER HAVEN AND
CRYSTAL CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2822 10024 2823 10024 2823 10027 2827 10031
2833 10031 2839 10037 2850 10038 2854 10043
2858 10042 2866 10050 2889 10026 2870 9975
2820 10013
TIME...MOT...LOC 0329Z 294DEG 21KT 2872 10025 2858 10046
2838 10070
$$2 follow-up statements
625
WWUS54 KEWX 300343
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1043 PM CDT TUE MAR 29 2011
TXC127-323-507-300415-
/O.CON.KEWX.SV.W.0009.000000T0000Z-110330T0415Z/
ZAVALA TX-MAVERICK TX-DIMMIT TX-
1043 PM CDT TUE MAR 29 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR WESTERN DIMMIT...MAVERICK AND SOUTHWESTERN ZAVALA COUNTIES...
AT 1040 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF
FARIAS LAKE TO ROSITA SOUTH TO 22 MILES SOUTHWEST OF EL INDIO...OR
ALONG A LINE EXTENDING FROM 15 MILES NORTHEAST OF EL INDIO TO EL
INDIO TO 22 MILES SOUTHWEST OF EL INDIO...MOVING SOUTHEAST AT 25 MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE COMETA...WINTER HAVEN AND
CRYSTAL CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT
TUESDAY EVENING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2822 10024 2823 10024 2823 10027 2827 10031
2833 10031 2839 10037 2850 10038 2854 10043
2858 10042 2863 10047 2883 10014 2870 9975
2820 10013
TIME...MOT...LOC 0343Z 294DEG 21KT 2869 10016 2855 10038
2835 10062
$$441
WWUS54 KEWX 300401
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1101 PM CDT TUE MAR 29 2011
TXC127-323-507-300415-
/O.CON.KEWX.SV.W.0009.000000T0000Z-110330T0415Z/
ZAVALA TX-MAVERICK TX-DIMMIT TX-
1101 PM CDT TUE MAR 29 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR NORTHWESTERN DIMMIT...MAVERICK AND SOUTHWESTERN ZAVALA
COUNTIES...
AT 1058 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A LINE OF
SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM COMETA TO EL INDIO TO
19 MILES SOUTHWEST OF EL INDIO...OR ALONG A LINE EXTENDING FROM 12
MILES WEST OF CRYSTAL CITY TO EL INDIO TO 19 MILES SOUTHWEST OF EL
INDIO...MOVING SOUTHEAST AT 25 MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE WINTER HAVEN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
WEDNESDAY MORNING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 2861 10044 2871 10011 2864 9982 2820 10013
2822 10024 2823 10024 2823 10027 2827 10031
2833 10031 2839 10037 2850 10038 2854 10043
2858 10042
TIME...MOT...LOC 0401Z 294DEG 21KT 2864 10000 2849 10026
2831 10051
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 9:32 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 58 min |
| Mar 29, 9:41 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 64 min |
| Mar 29, 11:44 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Maverick | 49 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2011Every severe thunderstorm warning in 2011
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.