Area Forecast Discussion
Issued by NWS St. Louis, MO

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FXUS63 KLSX 311828

128 PM CDT Sun May 31 2015

Issued at 226 AM CDT Sun May 31 2015

Area still under the influence of a broad upper level trof that
encompasses the center of the CONUS. This combined with cold
advection behind the front has left the area feeling more like early
spring rather than late May. General pattern trend the next few
days will be for the trof to cutoff into an upper level low as it
progresses into the southeast CONUS. Meanwhile, upper level
ridging will begin to build from the southern Plains into the
middle and upper Mississippi River Valley. So, after a cool and
cloudy day to end the weekend, temperatures will begin to slowly
moderate back to normal early next week. Above normal temperatures
are expected by the end of the week and next weekend. Chances of
precipitation should be limited until the end of next weekend when
the next cold front is progged by both the ECWMF and GFS to move
across the region.



.AVIATION:  (For the 18z TAFs through 18z Monday Afternoon)
Issued at 110 PM CDT Sun May 31 2015

Expect MVFR ceilings throughout the rest of the afternoon with the
ceilings likely staying below 2000 feet at the St. Louis metro
airports. Ceilings may fall below 1000 feet after 04Z tonight at
the St. Louis metro airports and KCOU before lifting mid-late
Monday morning.

Specifics for KSTL: Expect ceilings to now remain below 2000 feet
during the forecast period with ceilings falling to IFR late
tonight into late morning Monday.





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