 |
| Storm Reports |
| Are you interested in what happened during a recent event? Check out the
report below. |
|
|
 |
Winter Weather on January 25, 2008 |
 |
| |
 |
An area of Arctic high pressure built into the
region on January 23rd and 24th, with well below
normal temperatures. As the high exited to the east, a southerly wind
flow pulled warmer air along the Gulf Coast over shallow cold air
across Arkansas. This overrunning
pattern will led to thickening clouds and areas of wintry precipitation
on the 25th. |
| In the picture:
The pattern at 12 pm CST on 01/25/2008...with warmth/moisture overrunning
shallow cold air in Arkansas (leading to wintry precipitation). |
| Precipitation did not reach the ground initially. While
moisture increased readily aloft, it fell through dry air...with evaporation occurring. |
 |
| In the picture:
Freezing rain and sleet fell across the southern half of Arkansas as of
9 am CST on 01/25/2008. Winter Weather Advisories (highlighted in red)
were posted by the National Weather Service. |
 |
Evaporation created cooling near the ground, with
temperatures holding in the 20s for much of the day. Meanwhile, warming
aloft (warm air overrunning cold air) kept precipitation in liquid form
until it reached subfreezing air below. The result was freezing rain and sleet in much
of central and southern Arkansas. |
| In the picture:
The forecast sounding at Little Rock (Pulaski County) during the late
morning/early afternoon on 01/25/2008...with deep moisture (similar
temperatures and dewpoints through the profile) and a shallow layer of
subfreezing air near the ground. |
| Winter Weather Advisories were posted for roughly the
southern half of the state. Precipitation amounts were light, with
less than a tenth of an inch common...but a tenth to more than a
quarter of an inch toward the Louisiana border. |
| Roads became icy in much of the advisory
area. There was one fatality reported. A young man lost control of his
vehicle on Interstate 30 near Arkadelphia (Clark County), crossed the
median and hit oncoming traffic. |
 |
| In the picture:
Roads were icy across much of central and southern Arkansas as
of 1230 pm CST on 01/25/2008. |
| In the northern counties, moisture was more limited...with
only a few snow flurries and a little sleet reported. |
|
|
| In the
pictures: The forecast relative humidity profile (in %) with height
from Harrison (Boone County) to Little Rock (Pulaski County) and
Monticello (Drew County) showed abundant (deep) moisture mainly
in central and southern Arkansas from 6 am to 6 pm CST on 01/25/2008.
Moisture was more limited farther north. After 6 pm CST, moisture
was restricted to the lower levels of
the atmosphere (more shallow). |
|
|
|
Heading into the nighttime hours of the 25th/early on the 26th, moisture became
more shallow across Arkansas...and was found in the lower layers of the
atmosphere. While precipitation mostly ended, clouds generally lowered
with areas of freezing drizzle/fog and some hazardous driving
conditions continuing (especially on bridges and overpasses).
|
|
|
www.weather.gov
