Special Statement
Expires 8:00 AM CST on February 12, 2012
Statement as of 1:30 PM CST on February 11, 2012
... Dangerously low wind chills expected overnight...
A very cold Arctic air mass will continue to spread southeastward
overnight... with low temperatures falling into the 15 to 20 degree
range for most locations. The cold air temperatures... when combined
with a persistent northwest wind around 10 mph... will result in wind
chill values falling to between 8 and 12 degrees. In the higher
terrain of northeast Alabama and southern middle Tennessee...
temperatures will be colder and winds will be stronger... with wind
chills approaching zero. Anyone venturing outdoors this evening and
overnight is encouraged to prepare for dangerously low wind chills by
dressing appropriately and limiting time spent outside.
Fire Weather Warning
Expires 6:00 PM CST on February 12, 2012
Statement as of 5:55 am CST on February 12, 2012
... Red flag warning remains in effect from 11 am this morning to
6 PM CST this evening for low humidity for all of northern Alabama...
* affected areas: Lauderdale... Colbert... Franklin al...
Lawrence... Limestone... Madison... Morgan... Marshall...
Jackson... DeKalb... and Cullman counties.
* Timing: mainly this afternoon.
* Relative humidity: values will fall well below 25 percent for at
least four hours or more later today.
* Impacts: a dry Arctic air mass will persist across northern Alabama
today... resulting in critical fire weather conditions. Low relative
humidity values are again possible on Monday before Gulf moisture
increases across the region Monday night and Tuesday.
Precautionary/preparedness actions...
A red flag warning means that critical fire weather conditions
are either occurring now... or will shortly. Low relative humidity
over a prolonged period will increase fire growth potential.
