Scientific Forecaster Discussion
Area forecast discussion...updated
National Weather Service Huntsville Alabama
1136 am CST Thursday Mar 5 2015
for 18z tafs
/issued 930 am CST Thursday Mar 5 2015/
areas west of Jackson and DeKalb counties in Alabama are all well
below freezing and have experienced light ice accumulations and up
to an inch or two of sleet accumulation over the past few hours. The
heaviest precipitation as of 15z is now making its way east through Madison
and Morgan counties and should be out of the area completely by 18z.
There is some lingering light precipitation coming up from the south but
again...it will be light and may remain through the early afternoon.
14z laps soundings in the western areas are showing the warm nose
quickly cooling which means this remaining precipitation should switch to
light snow in the next hour or two. Little to no additional
accumulation would be expected with this.
The upper trough is moving through eastern Arkansas now which is
helping to quickly push the precipitation out of the area. Temperatures are still
forecast to rise slightly today but probably will not get above
freezing in most areas.
for 18z tafs...the precipitation has generally exited the terminals as of
18z but with a few showers left...will continue a tempo group at khsv
through 20z for some light pellets/snow. Winds will remain gusty
through the evening with a lull or two possible. Tricky part of the
forecast will be when the clouds clear out or at least go to scattered
instead of broken. There have been some mixed signals about what will
happen so confidence is low on the forecast. Right now will continue
the broken ceilings through 7/9z with clearing thereafter.
Alabama...Winter Storm Warning until 3 PM CST this afternoon for alz001>010-
Tennessee...Winter Storm Warning until 3 PM CST this afternoon for tnz076-096-
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