Dripping Springs, Texas

... Heat advisory now in effect until 7 PM CDT Saturday...

Another hot day is forecast Saturday with highs of 101 to 105.
Heat index values will range between 105 and 110 during the
afternoon and early evening hours tomorrow.

Precautionary/preparedness actions...

A heat advisory means very high temperatures and humidity will
create conditions that may cause heat exhaustion or heat stroke.
Drink plenty non-alcoholic fluids... stay in air conditioned
buildings... stay out of the sun... and check on relatives and
neighbors.

... Mid June to July 10th 2009 continues with hot afternoons...

Hot afternoon highs averaging 5 to near 10 degrees above average
for June to early July have continued through today... July 10th.
So far for the first 10 days of July this year the average afternoon
highs have been around 100 to 103.

A brief stretch of hot afternoons showed up in early may this year.
So far this year since early may... Austin Mabry and del Rio have had
24 100 degree days... San Antonio International Airport 20 100 degree
days... San Antonio Stinson field 27 100 degree days... and
Austin Bergstrom 18 100 degree days. The hottest days so far in
2009 were as follows... del Rio 107 may 6th... Austin Mabry 106 on
June 25... June 29... and July 8... Austin Bergstrom 107 on June
25... and San Antonio 104 on June 29... July 5... July 8... and July 9.
The high of 107 at San Antonio Stinson field on July 5th was the
hottest day so far in 2009 at San Antonio Stinson field.

As hot afternoons continue through this weekend... this will add
to the continued dryness across south central Texas.

The all time greatest number of 100 degree days in a calendar
year at Austin... del Rio... and San Antonio are listed below.

Del Rio... ... ... ... 72 in 2001
Austin Bergstrom... 50 in 1998
Austin Mabry... ... .69 in 1925
San Antonio... ... ..36 in 1998

The all time greatest number of 100 degree days in a row at
Austin... del Rio... and San Antonio are listed below.

Del Rio... ... ... ... 50 from June 17 to August 5... 1980
Austin Bergstrom... 23 from July 27 to August 18... 1951
Austin Mabry... ... .21 from July 12 to August 1... 2001
San Antonio... ... ..21 from July 24 to August 13... 1962

In 2009 the most consecutive days in a row of 100 has been
10 at Austin from June 20 to 29... 6 at San Antonio from
June 24 to 29... and 7 at del Rio from June 10 to 16. In 2009
from June 10th to July 10th... the unusual number of 100 degree
days has come intermittently. In that time span... Austin Mabry
has had 24 100 degree days... Austin Bergstrom 18 100 degree
days... del Rio 21 100 degree days... San Antonio International
Airport 19 100 degree days... and San Antonio Stinson field
26 100 degree days. The combination of hot days and high...
intense subtropical sun... several weeks before and after
June 21st... has added to the dryness across south central Texas.

The month of June 2009 was the 2nd warmest June at Austin Mabry...
the 8th warmest at Austin Bergstrom... the 5th warmest June at
del Rio... and a tie for the 3rd warmest June at San Antonio with
June of 1998.