…. URGENT ….

NWS/Austin San Antonio has issued a WINTER WEATHER ADVISORY valid now
through 10am Saturday morning for Travis.. Williamson and Hays Counties and counties
westward over the hill country for ice accumulations of up to 1/10th of an inch… This
includes the Austin metro area….

The long and short of it is that the forecast has gone sour. Afternoon high temperatures
did not get as warm as expected.. due to cloud cover.. and with light precipitation now
started, we’re seeing evaporative cooling with temperatures falling back toward freezing
now. It is likely that this may be a problem through the nighttime hours and into the morning
hours on Saturday until temperatures get above freezing (10 to 11am).

The precipitation tonight should be freezing drizzle or very light freezing rain. Icing will
be likely first noticed in areas to the west of the IH35 corridor and on elevated objects and
potentially on elevated roadways and bridges. The ice may be hard to see so everyone
should use caution!!

4pm temps and weather…
Austin Bergstrom…. Cloudy.. 36F (dewpoint 26F)
Austin City (Camp Manry)…. Cloudy/Drizzle… 33F (dewpoint 28F)

Here is the NWS Text

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
332 PM CST FRI FEB 27 2015

…LIGHT FREEZING RAIN AND DRIZZLE EXPECTED LATE THIS AFTERNOON
THROUGH SATURDAY MORNING ACROSS PORTIONS OF THE AREA…

.LIGHT FREEZING RAIN AND FREEZING DRIZZLE IS DEVELOPING LATE THIS
AFTERNOON ACROSS THE HILL COUNTRY. THE PRECIPITATION WILL EXPAND
IN COVERAGE OVERNIGHT TO INCLUDE THE EDWARDS PLATEAU AND PORTIONS
OF CENTRAL TEXAS. THE MAIN IMPACTS WILL BE ALONG AND NORTH OF A
COMSTOCK TO MEDINA TO HELOTES TO AUSTIN LINE.

TXZ171>173-183>192-205-206-280600-
/O.NEW.KEWX.WW.Y.0005.150227T2132Z-150228T1600Z/
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BEXAR-COMAL-
INCLUDING THE CITIES OF…LLANO…BURNET…GEORGETOWN…DEL RIO…
ROCKSPRINGS…LEAKEY…KERRVILLE…BANDERA…FREDERICKSBURG…
BOERNE…BLANCO…SAN MARCOS…AUSTIN…SAN ANTONIO…
NEW BRAUNFELS
332 PM CST FRI FEB 27 2015

…WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM CST SATURDAY…

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
WINTER WEATHER ADVISORY FOR PORTIONS OF THE EDWARDS PLATEAU…
HILL COUNTRY…AND CENTRAL TEXAS…WHICH IS IN EFFECT UNTIL 10 AM
CST SATURDAY.

* TIMING…LATE THIS AFTERNOON THROUGH SATURDAY MORNING.

* MAIN IMPACT…LIGHT FREEZING RAIN AND FREEZING DRIZZLE LEADING
TO ICE ACCUMULATIONS OF LESS THAN 1/10 OF AN INCH…MAINLY ON
BRIDGES…OVERPASSES…LESS TRAVELED ROADWAYS AND OTHER ELEVATED
SURFACES.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW…SLEET…OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

At mid morning this morning… a passing upper air disturbance,
which is producing moderate to heavy snow currently in the DFW
area, is moving eastward. It is possible that here.. on the southern
edge of the disturbance.. we could see a few snowflakes mainly in
areas of Williamson and Bell counties to our north.

By later today, as temperatures get a few more degrees above
freezing, the chance of rain will be in the forecast and continue into
much of the weekend with a slow warming trend as an overrunning
pattern persists.

It is possible in the overnight and early morning hours tonight and
tomorrow morning, that freezing rain/drizzle could develop over the
adjacent Texas Hill Country and hilly areas northwest of the IH35
corridor. I expect Austin metro temps to remain slightly above freezing
for the overnight hours which should preclude any problems in the Austin
metro area.