Area Forecast Discussion
Issued by NWS St. Louis, MO

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FXUS63 KLSX 262112
AFDLSX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
ISSUED BY NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
412 PM CDT Thu Mar 26 2015


.SHORT TERM:  (Through Late Tonight)
Issued at 318 PM CDT Thu Mar 26 2015

Clearing skies spread across eastern Missouri and Illinois this
afternoon as the storm system from overnight exited off into the
eastern CONUS. The broad upper level trough that brought shortwave
system and storms overnight will slowly shift east over the next
24 hours, but as that occurs we will have a fleeting chance for
some light precipitation late tonight as cold air sweeps south
across Missouri. Some light forcing on the western side of the
cool surface high tonight might result in some light precipitation
across central Missouri, but otherwise expect overnight lows to
bottom out in the upper 20s to lower 30s.

wfo lsx

.LONG TERM:  (Friday through Next Thursday)
Issued at 318 PM CDT Thu Mar 26 2015

With a large upper level trough still shifting east across the
region Friday, expectations are that the cold weather will persist
with some of the coldest daytime highs of the week likely.
However, the broader progressive northwest flow will keep the
region a bit active into the weekend, and therefore will allow
for a quick return of above normal temperatures by Sunday.
However, between now and Sunday we will have another little
clipper like system slide into Missouri and Illinois early
Saturday morning. Some light precipitation looks possible across
central into southeast Missouri, but with expected forecast
temperatures there are concerns about precipitation type. Have
continued to use a mix of rain and snow for the precipitation type
as a result.

Late in the weekend temperatures will return to more seasonally
normal levels as the large upper level trough and cool surface
ridge slide off to our east. Above normal temperatures will
persist into next work with another chance for thunderstorms
Wednesday into Thursday next week.

wfo lsx

&&

.AVIATION:  (For the 18z TAFs through 18z Friday Afternoon)
Issued at 1224 PM CDT Thu Mar 26 2015

What MVFR ceilings where affecting the terminals have now settled
south. With a persistent northwest wind expected over the next 30
hours only issue looks to be the return of ceilings early Friday
morning as another round of showers sinking south through western
Missouri. Think the KCOU terminal will be most affected by the
lower CIGs, but even then thinking is that it should stay in the
MVFR range.

Specifics for KSTL:

Clearing skies will prevail for the rest of the afternoon. Clouds
will try and move back in early Friday morning, though forecast
thoughts are that CIGs will be in the high end of MVFR or low VFR
range Friday. Otherwise, expect surface winds to remain form the
northwest overnight into Friday with wind speeds to come up above
10 MPH Friday morning.

WFO LSX

&&

.PRELIMINARY POINT TEMPS/POPS:
Saint Louis     33  44  28  44 /  10  10  10  10
Quincy          29  42  25  44 /  10  10   5   5
Columbia        31  45  30  47 /  20  10  20  10
Jefferson City  30  46  30  48 /  10  10  20  20
Salem           31  42  24  43 /  10  10   5   0
Farmington      30  46  28  45 /  10  10  10  10

&&

.LSX WATCHES/WARNINGS/ADVISORIES:
MO...NONE.
IL...NONE.
&&

$$

WFO LSX






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