Alert archive / Texas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS Austin/San Antonio, TX

January 24, 2012Edwards County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jan 24, 2012, 11:44 PM CST for Edwards County, Texas. It was in force for 32 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: Jan 24, 2012, 11:44 PM CST (05:44 UTC)
Expired: Jan 25, 2012, 12:16 AM CST
In force: 32 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon

County Edwards County, TX

The radar

The Laughlin AFB radar (KDFX), 92 km from the middle of the area, began a volume at 05:47 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 (KDRT), launched 00:00Z, 5.7 hours before the alert went out and 101 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 619 J/kg
Mixed-layer CIN: -174 J/kg
Mixed-layer LCL: 573 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 253 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

044 
WUUS54 KEWX 250544
SVREWX
TXC137-250630-
/O.NEW.KEWX.SV.W.0008.120125T0544Z-120125T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1144 PM CST TUE JAN 24 2012

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL EDWARDS COUNTY...

* UNTIL 1230 AM CST.

* AT 1138 PM CST...NWS METEOROLOGISTS HAVE DETECTED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST OF ROCKSPRINGS TO 11
  MILES SOUTHWEST OF ROCKSPRINGS...AND MOVING NORTHEAST AT 30 MPH.

* SOME LOCATIONS IN THE WARNING INCLUDE DEVILS SINKHOLE STATE NATURAL
  AREA.

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 3028 10010 2988 10009 2985 10037 3021 10040
TIME...MOT...LOC 0544Z 240DEG 27KT 3010 10028 2994 10030

$$

1 follow-up statement

031 
WWUS54 KEWX 250616
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1216 AM CST WED JAN 25 2012

TXC137-250626-
/O.CAN.KEWX.SV.W.0008.000000T0000Z-120125T0630Z/
EDWARDS TX-
1216 AM CST WED JAN 25 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL EDWARDS COUNTY IS
CANCELLED...

LAT...LON 3028 10010 2988 10009 2985 10037 3021 10040
TIME...MOT...LOC 0616Z 240DEG 27KT 3022 10004 3006 10006

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 24, 10:38 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	26 min
Jan 24, 10:40 PM CST	Severe Thunderstorm Warning	EWX	Val Verde	35 min
Jan 24, 10:52 PM CST	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	38 min
Jan 24, 11:17 PM CST	Severe Thunderstorm Warning	EWX	Edwards	28 min
Jan 24, 11:29 PM CST	Tornado Warning	EWX	Edwards	16 min
Jan 24, 11:41 PM CST	Severe Thunderstorm Warning	EWX	Edwards	35 min
Jan 25, 12:20 AM CST	Severe Thunderstorm Warning	EWX	Edwards, Real	40 min
Jan 25, 1:17 AM CST	Areal Flood Advisory	EWX	Bexar	103 min
Jan 25, 1:33 AM CST	Severe Thunderstorm Warning	EWX	Bexar, Comal, Guadalupe, Hays	42 min
Jan 25, 2:00 AM CST	Flash Flood Warning	EWX	Bexar	6 hr
Jan 25, 2:06 AM CST	Areal Flood Advisory	EWX	Caldwell, Comal, Guadalupe, Hays	114 min
Jan 25, 2:15 AM CST	Areal Flood Advisory	EWX	Hays, Travis	105 min
Jan 25, 2:47 AM CST	Flash Flood Warning	EWX	Travis	3 hr
Jan 25, 3:33 AM CST	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Hays, Travis	42 min
Jan 25, 4:06 AM CST	Areal Flood Advisory	EWX	Bexar, Blanco, Comal, Hays, Kendall	114 min
Jan 25, 4:09 AM CST	Areal Flood Advisory	EWX	Bastrop, Caldwell	111 min
Jan 25, 4:26 AM CST	Flash Flood Warning	EWX	Bastrop	3 hr
Jan 25, 4:26 AM CST	Flash Flood Warning	EWX	Travis, Williamson	3 hr
Jan 25, 4:54 AM CST	Areal Flood Advisory	EWX	Comal, Guadalupe, Hays	2 hr
Jan 25, 5:18 AM CST	Flash Flood Warning	EWX	Bastrop, Caldwell, Hays, Travis	3 hr
Jan 25, 5:49 AM CST	Areal Flood Advisory	EWX	Guadalupe	101 min
Jan 25, 5:54 AM CST	Areal Flood Advisory	EWX	Bastrop, Caldwell	2 hr
Jan 25, 6:07 AM CST	Flash Flood Warning	EWX	Lee	3 hr
Jan 25, 6:23 AM CST	Severe Thunderstorm Warning	EWX	Lee	52 min
Jan 25, 6:26 AM CST	River Flood Warning	EWX	Travis	14 hr
Jan 25, 6:39 AM CST	River Flood Warning	EWX	Bexar	14 hr
Jan 25, 6:46 AM CST	Flash Flood Warning	EWX	Bastrop	3 hr
Jan 25, 6:56 AM CST	River Flood Warning	EWX	Bexar, Wilson	32 hr
Jan 25, 7:04 AM CST	Flash Flood Warning	EWX	Fayette	3 hr
Jan 25, 9:05 AM CST	River Flood Warning	EWX	Caldwell, Gonzales	34 hr
Jan 25, 9:05 AM CST	River Flood Warning	EWX	Gonzales	60 hr
Jan 25, 9:27 AM CST	Flash Flood Warning	EWX	Bastrop	2 hr
Jan 25, 5:49 PM CST	Areal Flood Advisory	EWX	Bastrop	101 min

Nearby

Severe Thunderstorm Warnings in Texas, 2012 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.