Alert archive / Texas / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 49, NWS Austin/San Antonio, TX

April 24, 2015Maverick County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 24, 2015, 6:37 PM CDT for Maverick County, Texas. It was in force for 23 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: Apr 24, 2015, 6:37 PM CDT (23:37 UTC)
Expired: Apr 24, 2015, 7:00 PM CDT
In force: 23 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Maverick County, TX

The radar

The Laughlin AFB radar (KDFX), 56 km from the middle of the area, began a volume at 23:36 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
Apr 24, 6:50 PM CDT	HAIL 1	1 W Laughlin Afb Aux Fi, TX	NICKEL TO QUARTER SIZE HAIL REPORTED BY BORDER PATROL.

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 (KDLF), launched 12:00Z, 11.6 hours before the alert went out and 72 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: 33 J/kg
Mixed-layer CIN: -362 J/kg
Mixed-layer LCL: 745 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 252 m²/s²
0-3 km storm-relative helicity: 330 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

230 
WUUS54 KEWX 242337
SVREWX
TXC323-250000-
/O.NEW.KEWX.SV.W.0049.150424T2337Z-150425T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
637 PM CDT FRI APR 24 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MAVERICK COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 700 PM CDT

* AT 637 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR RADAR
  BASE...OR 7 MILES NORTHWEST OF EAGLE PASS...MOVING EAST AT 30 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  EAGLE PASS...RADAR BASE...PALOMA...LAUGHLIN AFB AUX FIELD...ELM
  CREEK AND SECO MINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 2871 10051 2875 10051 2876 10053 2880 10053
      2883 10055 2883 10058 2889 10059 2890 10062
      2902 10019 2867 10021
TIME...MOT...LOC 2337Z 274DEG 28KT 2881 10054 

HAIL...1.00IN
WIND...60MPH
 
$$

MCO

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 8:07 PM CDT	Special Weather Statement	EWX	Val Verde	38 min
Apr 23, 9:05 PM CDT	Special Weather Statement	EWX	Val Verde	25 min
Apr 23, 9:37 PM CDT	Special Weather Statement	EWX	Val Verde	23 min
Apr 23, 11:03 PM CDT	Special Weather Statement	EWX	Val Verde	42 min
Apr 23, 11:12 PM CDT	Special Weather Statement	EWX	Val Verde	33 min
Apr 23, 11:53 PM CDT	Special Weather Statement	EWX	Val Verde	52 min
Apr 24, 2:23 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick	52 min
Apr 24, 3:27 AM CDT	Areal Flood Advisory	EWX	Dimmit, Zavala	3 hr
Apr 24, 3:50 AM CDT	Areal Flood Advisory	EWX	Real, Uvalde	3 hr
Apr 24, 3:52 AM CDT	Areal Flood Advisory	EWX	Frio	3 hr
Apr 24, 4:35 AM CDT	Areal Flood Advisory	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays, Wilson	3 hr
Apr 24, 4:38 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Val Verde	52 min
Apr 24, 5:02 AM CDT	Flash Flood Warning	EWX	Bexar	3 hr
Apr 24, 5:04 AM CDT	Areal Flood Advisory	EWX	Medina	3 hr
Apr 24, 5:45 AM CDT	Areal Flood Advisory	EWX	Bastrop	3 hr
Apr 24, 6:22 AM CDT	Areal Flood Advisory	EWX	Bandera, Kendall, Kerr	113 min
Apr 24, 6:30 AM CDT	Flash Flood Warning	EWX	Bastrop, Caldwell	3 hr
Apr 24, 6:41 AM CDT	Flash Flood Warning	EWX	Lee	3 hr
Apr 24, 6:48 AM CDT	River Flood Warning	EWX	Bexar	7 hr
Apr 24, 8:26 AM CDT	Areal Flood Advisory	EWX	Bexar	109 min
Apr 24, 9:36 AM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell	114 min
Apr 24, 10:42 AM CDT	River Flood Warning	EWX	Caldwell, Gonzales	23 hr
Apr 24, 2:15 PM CDT	Flash Flood Watch	EWX	Atascosa, Bastrop, Bexar, Caldwell, DeWitt, Fayette and 8 more	12 hr
Apr 24, 5:16 PM CDT	Special Weather Statement	EWX	Maverick	44 min
Apr 24, 5:49 PM CDT	Special Weather Statement	EWX	Kinney	56 min
Apr 24, 6:15 PM CDT	Special Weather Statement	EWX	Kinney	45 min
Apr 24, 6:18 PM CDT	Special Weather Statement	EWX	Kinney	42 min
Apr 24, 6:22 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Uvalde	38 min
Apr 24, 6:55 PM CDT	Special Weather Statement	EWX	Dimmit	50 min

Nearby

Severe Thunderstorm Warnings in Texas, 2015 Every severe thunderstorm warning in 2015

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.