Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 89, NWS Austin/San Antonio, TX

April 27, 2016Blanco County, Burnet County, Gillespie County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 27, 2016, 1:23 AM CDT for Blanco County, Burnet County, Gillespie County, Texas. It was in force for 67 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: Apr 27, 2016, 1:23 AM CDT (06:23 UTC)
Expired: Apr 27, 2016, 2:30 AM CDT
In force: 67 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Blanco County, TX, Burnet County, TX, Gillespie County, TX

The radar

The Ft Hood radar (KGRK), 91 km from the middle of the area, began a volume at 06:23 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 27, 2:00 AM CDT	TSTM WND DMG	Round Mountain, TX	METAL ROOF PANELS STRIPPED FROM HORSE ARENA...METAL ROOF PANELS STRIPPED FROM A HOME...LARGE TREES DOWNED BY WIND GUSTS
Apr 27, 2:03 AM CDT	HAIL 0.25	Bertram, TX
Apr 27, 2:15 AM CDT	TSTM WND DMG	1 Ene Flugrath, TX	LARGE TREES DOWNED BY WIND GUSTS NEAR FM1888 AND CRABAPPLE ROAD

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
Apr 26, 10:21 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 6.4 hours before the alert went out and 266 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: 2622 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1224 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 126 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 11.0

Open this sounding in Storm Lab

The text

As transmitted.

419 
WUUS54 KEWX 270623
SVREWX
TXC031-053-171-270730-
/O.NEW.KEWX.SV.W.0089.160427T0623Z-160427T0730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
123 AM CDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BURNET COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHEASTERN GILLESPIE COUNTY IN SOUTH CENTRAL TEXAS...
  BLANCO COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 230 AM CDT

* AT 122 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR LLANO TO NEAR CRABAPPLE TO NEAR TIVYDALE...
  MOVING EAST AT 50 TO 55 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...
  KINGSLAND...MARBLE FALLS...BURNET...BLANCO...BERTRAM...ROUND MOUNTAIN...
  BUCHANAN DAM...GRANITE SHOALS...HORSESHOE BAY...MEADOWLAKES...JOHNSON
  CITY...HIGHLAND HAVEN...SANDY...FLUGRATH...SPICEWOOD...BLOWOUT...
  PEDERNALES FALLS STATE PARK...OATMEAL...SHADY GROVE AND CYPRESS MILL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

LARGE HAIL AND DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY.
LIGHTNING IS ONE OF NATURES LEADING KILLERS. REMEMBER...IF YOU CAN
HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

&&

LAT...LON 3103 9791 3092 9783 3078 9797 3050 9812
      3005 9829 2994 9841 3014 9859 3014 9868
      3031 9859 3050 9859 3049 9835 3056 9835
      3057 9841 3067 9844 3074 9837 3075 9843
      3083 9838 3088 9846 3093 9841 3103 9844
TIME...MOT...LOC 0622Z 280DEG 48KT 3072 9876 3041 9885 3019 9904 

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

ALLEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 11:12 PM CDT	Special Weather Statement	EWX	Val Verde	33 min
Apr 26, 11:33 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	72 min
Apr 26, 11:44 PM CDT	Special Weather Statement	EWX	Burnet	46 min
Apr 27, 12:05 AM CDT	Special Weather Statement	EWX	Burnet	40 min
Apr 27, 12:21 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Gillespie, Kerr, Real, Val Verde	69 min
Apr 27, 12:25 AM CDT	Severe Thunderstorm Warning	EWX	Burnet	50 min
Apr 27, 12:48 AM CDT	Special Weather Statement	EWX	Edwards	42 min
Apr 27, 12:57 AM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Llano	63 min
Apr 27, 1:11 AM CDT	Special Weather Statement	EWX	Williamson	64 min
Apr 27, 1:34 AM CDT	Special Weather Statement	EWX	Bandera, Kendall, Real	41 min
Apr 27, 1:41 AM CDT	Severe Thunderstorm Warning	EWX	Kendall, Kerr	64 min
Apr 27, 2:04 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Bexar, Caldwell, Comal, Guadalupe, Hays and 2 more	56 min
Apr 27, 2:11 AM CDT	Special Weather Statement	EWX	Bexar, Medina, Uvalde	64 min
Apr 27, 2:26 AM CDT	Special Weather Statement	EWX	Uvalde	49 min
Apr 27, 2:30 AM CDT	Special Weather Statement	EWX	Williamson	45 min
Apr 27, 3:01 AM CDT	Special Weather Statement	EWX	Atascosa, Bastrop, Bexar, Caldwell, Fayette, Frio and 8 more	59 min
Apr 27, 3:39 AM CDT	Special Weather Statement	EWX	Caldwell	36 min
Apr 27, 3:44 AM CDT	Special Weather Statement	EWX	Medina	31 min
Apr 27, 3:57 AM CDT	Special Weather Statement	EWX	Atascosa, Bastrop, Bexar, Caldwell, Comal, DeWitt and 8 more	63 min
Apr 27, 4:34 AM CDT	Special Weather Statement	EWX	Atascosa	56 min
Apr 27, 4:35 AM CDT	Special Weather Statement	EWX	Guadalupe, Wilson	55 min
Apr 27, 4:43 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Frio, Medina	25 min
Apr 27, 4:53 AM CDT	Special Weather Statement	EWX	Wilson	37 min
Apr 27, 5:04 AM CDT	Special Weather Statement	EWX	Guadalupe	41 min
Apr 27, 5:37 AM CDT	Special Weather Statement	EWX	Atascosa	38 min
Apr 27, 6:19 AM CDT	Special Weather Statement	EWX	Karnes	56 min
Apr 27, 7:15 AM CDT	Special Weather Statement	EWX	Karnes	30 min

Nearby

Severe Thunderstorm Warnings in Texas, 2016 Every severe thunderstorm warning in 2016

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.