Houston, Texas

... Freeze warning remains in effect from noon Friday to 9 am CST
Saturday...

A freeze warning remains in effect from noon Friday to 9 am CST
Saturday.

An Arctic air mass is expected to plunge into the region Friday.
Temperatures are expected to drop to around freezing over some
inland locations as early as early to mid afternoon Friday as snow
develops across the area. Coastal locations will see temperatures
drop below freezing early evening on Friday.

Temperatures Friday night will bottom out in the 20s across most
of southeast Texas... lower 30s along the coast. Temperatures are
expected to remain below freezing for 12 to 18 hours for most
inland locations... including the Metro Houston suburbs.
Temperatures in downtown Houston will remain below freezing for 10
to 14 hours. Along the immediate coast... temperatures are expected
to remain below freezing for 3 to 6 hours.

Temperatures will warm above freezing mid morning on Saturday.

Precautionary/preparedness actions...

A freeze warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

1017 PM CST Thu Dec 3 2009

... Winter Storm Warning in effect from 10 am to 8 PM CST Friday...

The National Weather Service in Houston/Galveston has issued a
Winter Storm Warning for snow... which is in effect from 10 am to
8 PM CST Friday. The Winter Storm Watch is no longer in effect.

Snow is expected to develop across the area beginning late morning
Friday... and become moderate to heavy during the afternoon hours.
The snow will persist until early evening before ending. Total
snow accumulations of 1 to 3 inches... with isolated totals of 4
inches... are expected across the inland counties and the northern
portions of the coastal counties. Toward the immediate
coast... the precipitation will begin as rain and not change to
snow until late afternoon. As a result... slightly lower
accumulations are anticipated there. The precipitation is expected
to end across the warning area between 6 and 8 PM. Some roadways...
especially on bridges and overpasses are likely to become icy
Friday evening as temperatures fall well below freezing.

In addition to the snow... the combination of gusty winds and cold
temperatures will result in wind chill readings in the 20s Friday
afternoon and evening.

Precautionary/preparedness actions...

A Winter Storm Warning for heavy snow means winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast.

Melting and refreezing of water on roadways... especially bridges
and overpasses... will create patches of black ice. This type of
ice is virtually invisible on the Road surface... and can cause you
to lose control of your car.