Area Forecast Discussion
Issued by NWS Springfield, MO
FXUS63 KSGF 281036
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
436 AM CST Sat Feb 28 2015
...Snow Today and Evening With Wintry Mix Tonight into Sunday...
.SHORT TERM...(Today and Monday)
Issued at 435 AM CST SAT FEB 28 2015
An upper level low is currently digging south along the west coast.
An upper level disturbance is currently pushing east into the
central Plains and will continue to track east across the region
today. An area of isentorpic lift is also pushing across the area
early this morning and light snow is developing across
northeastern Oklahoma and northern Arkansas. This light snow will
clip southern Missouri early this morning and will be light in
nature but a light dusting of less than one half inch of snow will
be possible early this morning.
Later this morning into this afternoon, snow will overspread the
area from west to east as the upper level disturbance pushes
toward the area. The snow will continue into this evening as an
upper level jet spreads north of the area and provides lift. There
will be widespread snow will this system, but there will also
likely be heavier bands that develop with in the snow. The overall
track of this system has shifted slightly to the south, so we have
increased snow amounts especially across the southern portions of
the forecast area.
A warm nose will start to spread into the area overnight tonight
into Sunday, but with the more southern track the warm nose will
not spread as far to the north. Still its expected to get roughly
to the I-44 corridor on Sunday and a light glaze of a few hundredths
of an inch of ice is expected on top of the snow across southern
Missouri. Rain is still expected by Sunday afternoon across
southern Missouri but a light wintry mix will remain possible
across the northern portions of the forecast area. The
precipitation will be light and will begin to taper off from west
to east Sunday afternoon, so not expecting a lot of additional
accumulations Sunday afternoon.
The farther south track will keep temperatures cooler today
through Sunday night. Temperatures will not warm that much from
this mornings lows as they only top out in the middle to upper
20s. Highs will warm into the middle 30s on Sunday.
The cold grounds temperatures combined will allow the snow to
quickly accumulate once it starts resulting in slick roadways.
Will continue the Winter Weather Advisory from 9 AM this morning
through Sunday morning. We also added the rest of the area to the
advisory given higher amounts now expected across south central MO
due to the more southerly track.
There will be a lull in precipitation Sunday evening into much of
Monday behind the upper level disturbance that will pass through
the region today and tonight and ahead of the upper level low
across the west Coast. Highs on Monday will warm into the upper
30s to lower 40s.
.LONG TERM...(Monday Night through Friday)
Issued at 435 AM CST SAT FEB 28 2015
The upper level trough will start to kick off to the east on
Monday and surface low pressure will develop across the Plains and
push to the north east into the region Monday night into Tuesday.
A warm front will push north of the area and much warmer
temperatures will spread into the area. Highs are Tuesday will
warm into the middle 50s to near the 60 degree mark. Showers and
perhaps a few thunderstorms will be possible Monday night as the
warm front lifts north. Then a strong cold front will track east
across the area on Tuesday with additional shower and thunderstorm
Another upper level trough will push east across central U.S.
behind the front into the middle of the week. There are questions
on when precipitation will end behind the front with lift from the
upper level trough. A much colder air mass will spread into the
region behind the front as highs Wednesday and Thursday only warm
into the middle 20s to the lower 30s. With the colder air mass
behind the front, any post frontal precipitation would be in the
form of snow with only light amounts expected at this time.
.AVIATION...(For the 06Z TAFS through 06Z Saturday Night)
Issued at 1114 PM CST FRI FEB 27 2015
For the KSGF/KJLN/KBBG tafs: An area of snow affected far sw MO
over the past few hours with IFR cat visibility common along with
IFR ceilings where the lower atmosphere could saturate (mainly
KBBG). Near term improvement in flight conditions are expected as
the snow continues to taper off, but mvfr/low end vfr ceilings
will be common. Another disturbance will bring a chance for
widespread snow and ifr cat conditions after 15z-18z.
MO...WINTER WEATHER ADVISORY from 9 AM this morning to Noon CST
Sunday FOR MOZ055>058-066>071-077>083-088>098-101>106.
KS...WINTER WEATHER ADVISORY from 9 AM this morning to Noon CST
Sunday FOR KSZ073-097-101.