Daily Archives
April 19, 2015

TK’s Special Briefing…. (235pm CT-Sun/19Apr2015)

by troyk | on Apr 19, 2015 | Comments Off

Austin / Travis County and South Central Texas Weather Update #1
Prepared by UT University/Incident Meteorologist Troy Kimmel
225pm CT – Sunday / 19 April 2015

…. Dry Line Moving Across the Area ….
…. Isolated Thunderstorms Developing ….
…. Severe Thunderstorm Watch Issued for Areas East of IH35
Corridor ….

At 225pm… a thunderstorm has developed northwest of Lexington with
another recently west of Kyle in Hays County. Lightning is being indicated
with both thunderstorms.

Based on surface analysis and NWS Doppler weather radar.. the eastward
moving dry line extends from eastern Williamson County to near Austin
Bergstrom International Airport to near Wimberley in Hays County.

As the dry line feature moves eastward and an approaching cold front.. moving
in from the northwest as well.. catches up with it, additional thunderstorm
development is likely east of the IH35 corridor.

A severe thunderstorm watch has been issued.. valid until 8pm.. for Fayette, Bastrop
and Lee counties. The watch for the counties in our immediate area will likely be
removed from the watch later this afternoon. No thunderstorms are expected in
the Austin metro area or Travis and Williamson counties and the thunderstorms
over Hays county should move out of the IH35 corridor before 345pm.

This will be my only statement on this weather event.

tk

TK’s Special Briefing…. FINAL (1140pm CT-Sat/18Apr2015)

by troyk | on Apr 19, 2015 | Comments Off

Austin / Travis County and South Central Texas Weather Update #25 – FINAL
Prepared by UT University/Incident Meteorologist Troy Kimmel
1140pm CT – Saturday / 18 April 2015

…. Threat of Thunderstorms Ending ….

At 1120pm… there are a few small non-severe thunderstorms across the area..
one near Pflugerville in northeast Travis County.. with another just northwest
of San Marcos. Other isolated moderate rain showers and thunderstorms are
outside the IH35 corridor counties near Burnet and also in Caldwell and Bastrop
counties.

The threat of severe weather has ended. All NWS advisories/watches and
warnings have expired. Other than the NWS final storm report mentioned below,
this will be my last statement on this weather event.

Tomorrow, I will forward to you, via email, the final NWS Austin-San Antonio
Local Storm Report (LSR) on this event.

…. Looking Ahead to the New Week ….

Tomorrow and Monday look like beautiful days with abundant sunshine. As this
upper level low pressure storm system moves away from the area tomorrow, a
pronounced dry, continental southwesterly surface wind flow will develop with the
possibility of highs getting near 90 in the afternoon. A rather strong dry surface
cold front will move through the area late tomorrow into tomorrow night with highs
on Monday, with sunshine, about 20 degrees cooler than tomorrow… we’ll only
be in the lower 70s for highs. Lows tomorrow night and Monday night will be in the
50s.

By Wednesday through the remainder of the week, we find ourselves back in a
more moist and unstable situation with another upper level Pacific low pressure
storm system approaching. Thunderstorm chances will be increasing again.
According to the latest NWS/Storm Prediction Center outlooks, there could be
the possibility of severe weather again over Texas and the southern plains as
early as Wednesday.. but more likely with a potentially higher risk Thursday into
Friday (and maybe even the weekend). As we plan the new week ahead, let’s
continue to be weather aware for the possibility of severe weather by mid and late
week and potentially into next weekend.

On behalf of the NWS/Austin-San Antonio, thanks for the storm reports tonight…
I forwarded them to the NWS office as you relayed them to me.

Have a good Sunday and a good start to your week… tk

TK’s Special Briefing…. (1022pm CT-Sat/18Apr2015)

by troyk | on Apr 19, 2015 | Comments Off

Severe weather risk has ended for the Austin area….

WATCH COUNTY NOTIFICATION FOR WATCH 72
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1019 PM CDT SAT APR 18 2015

TXC021-031-053-055-091-171-187-209-259-287-299-453-491-190430-
/O.CAN.KEWX.SV.A.0072.000000T0000Z-150419T0600Z/

THE NATIONAL WEATHER SERVICE HAS CANCELLED SEVERE THUNDERSTORM
WATCH 72 FOR THE FOLLOWING AREAS

IN TEXAS THIS CANCELS 13 COUNTIES

IN SOUTH CENTRAL TEXAS

BASTROP               BLANCO                BURNET
CALDWELL              COMAL                 GILLESPIE
GUADALUPE             HAYS                  KENDALL
LEE                   LLANO                 TRAVIS
WILLIAMSON

THIS INCLUDES THE CITIES OF…AUSTIN…BASTROP…BLANCO…
BOERNE…BURNET…FREDERICKSBURG…GEORGETOWN…GIDDINGS…
LLANO…LOCKHART…NEW BRAUNFELS…SAN MARCOS AND SEGUIN.

TK’s Special URGENT Briefing…. (845pm CT-Sat/18Apr2015)

by troyk | on Apr 19, 2015 | Comments Off

Austin / Travis County and South Central Texas Weather Update #21
Prepared by UT University/Incident Meteorologist Troy Kimmel
845pm CT – Saturday / 18 April 2015

…. Authority / NWS Austin-San Antonio ….

SEVERE THUNDERSTORM WARNING FOR NORTHERN HAYS AND
SOUTHWESTERN TRAVIS COUNTY UNTIL 915PM…

….  LAKE TRAVIS AND WESTERN AND CENTRAL AUSTIN IN THREAT
AREA … LARGE HAIL TO NEAR GOLF BALL SIZE RISK …

RADAR/WARNING POLYGON AT 845PM…
alert map

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
844 PM CDT SAT APR 18 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN HAYS COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTH CENTRAL BURNET COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHWESTERN TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHEASTERN BLANCO COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 915 PM CDT

* AT 840 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PEDERNALES
  FALLS STATE PARK...OR 11 MILES NORTHWEST OF DRIPPING SPRINGS...
  MOVING EAST AT 35 MPH. 

  HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. AT 825 PM QUARTER SIZE HAIL WAS 
REPORTED 2 MILES ESE OF SANDY. 

  IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
           DAMAGE TO ROOFS...SIDING...WINDOWS AND VEHICLES. EXPECT 
           WIND DAMAGE TO ROOFS...SIDING AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  AUSTIN...MARBLE FALLS...DRIPPING SPRINGS...TANGLEWOOD FOREST...
  LAKEWAY...BUDA...LAGO VISTA...BEE CAVE...HORSESHOE BAY...WEST LAKE
  HILLS...THE HILLS...MEADOWLAKES...ROLLINGWOOD...BEAR CREEK...
  SPICEWOOD...PEDERNALES FALLS STATE PARK...AND BARTON CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TK’s Special Briefing…. (822pm CT-Sat/18Apr2015)

by troyk | on Apr 19, 2015 | Comments Off

Austin / Travis County and South Central Texas Weather Update #20
Prepared by UT University/Incident Meteorologist Troy Kimmel
821pm CT – Saturday / 18 April 2015

…. Authority / NWS Austin-San Antonio ….

SEVERE THUNDERSTORM WARNING FOR BLANCO COUNTY AND
NW HAYS COUNTY UNTIL 845PM…

Radar and warning polygon at 819pm:
alert map

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
818 PM CDT SAT APR 18 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN HAYS COUNTY IN SOUTH CENTRAL TEXAS...
  BLANCO COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 845 PM CDT

* AT 817 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR JOHNSON
  CITY...OR 11 MILES SOUTHWEST OF ROUND MOUNTAIN...MOVING EAST AT 45
  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...
  ROUND MOUNTAIN...JOHNSON CITY...SANDY...CYPRESS MILL...ROCKY
  CREEK...PAYTON...HENLY AND PEDERNALES FALLS STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuing to monitor.. tk

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