… Winter Storm Warning in effect from noon today to noon CST
The National Weather Service in Houston/Galveston has issued a
Winter Storm Warning for snow… sleet and freezing rain… which
is in effect from noon today to noon CST Friday. The Winter Storm
Watch is no longer in effect.
An upper level storm system approaching from the west will
combine with increasing moisture and cold temperatures in the
lower atmosphere to generate a mix of snow… sleet… and freezing
rain across southeast Texas this afternoon through Friday
morning. The precipitation is expected to begin during the early
afternoon near the coast… and spread area wide by evening. The
wintry mix will continue Thursday night then taper off late
morning Friday.
Precipitation type: very light snow and sleet is expected at the
onset of the event Thursday across all of southeast Texas.
Thursday night and Friday morning… a mix of sleet and snow is
expected to the west of a line from Matagorda to downtown Houston
to northern Liberty County… with all snow across the northwest
half of the area. East of this line… freezing rain is expected
to mix in with the sleet and snow mainly before midnight. Over
southern Brazoria… southern Galveston… Chambers… and southern
Liberty counties mostly ice is expected. After midnight these
areas may have a sleet and snow mix. Freezing rain mixed with
sleet and snow may still be possible for most of Chambers County
and southern most Galveston County including Galveston Island.
Precipitation may continue to change over to all snow after 6am
Friday except for the immediate coast where sleet may mix with
the snow. Precipitation should come to an end near or shortly
after noon Friday.
Amounts: in the snow and sleet area… accumulations of 1 to
3 inches are expected with isolated totals around 4 inches. The
best chance of 4 inch accumulations will be across the Piney
Woods and lakes area of East Texas. In the freezing rain threat
area… ice accumulations of 1/10 to 1/4 inch are expected.
Impacts: due to evaporative cooling in the very dry airmass…
temperatures will run 5 to 7 degrees colder with this event than
during the last few winter weather events to impact this area.
These colder temperatures will result in a much higher likelihood
of roads becoming iced over… even with light precipitation
amounts. This will especially be the case with elevated surfaces
like bridges and overpasses. Road conditions are expected to
deteriorate beginning around sunset Thursday. In addition… power
outages will be possible especially in the freezing rain threat
Precautionary/preparedness actions…
Roads… bridges… and overpasses in the watch area may become
slick and hazardous. Accumulation of snow or ice on roadways…
bridges and overpasses may make travel treacherous. Exercise
caution if travel is necessary. In addition… power outages will
be possible.

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