Area Forecast Discussion
Issued by NWS Kansas City/Pleasant Hill, MO

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FXUS63 KEAX 221732

1232 PM CDT Wed Oct 22 2014

Issued at 357 AM CDT WED OCT 22 2014

Another nice day is in store for much of the region, despite the
threat of a few sprinkles during the day. Much of the focus for rain
over the next 36 hours will be on the late night through Thursday
hours as a weak front moves through. Satellite imagery shows us a
rather messy amplified pattern across the Nation with a shortwave
ridge residing across the Plains States with its axis just to our
west. A trough is noted shifting through the mountainous west and is
poised to to displace the ridge and bring some stormy weather later
tonight into Thursday as it pushes the weak cold front through our

Weather for today will be rather nice, with pleasant conditions
expected into the evening hours. With the ridge in place expect
temperatures to make another run at highs in the mid 60s to mid 70s
today thanks to continued southeast winds at the surface an a
southwest flow aloft. However, that self same southwest flow aloft
may induce a few clouds today with some marginal support for
sprinkles --weak isentropic lift along the saturated 295K to 300K
surfaces--. Boundary layer moisture will be a little sparse to begin
the day, but as the surface high slides off to the east higher dew
points are expected to advect in ahead of a weak cold front that
will sweep through starting Thursday morning. This will set the
region up for a late night/early morning rain event as the weak
front approaches and then sweeps through. Widespread precipitation
should begin to encroach from the west late this evening, with the
best potential for widespread rain looking to hold off to around and
after midnight. Given the progressive nature of the front, and
precipitable water values only in the 1.4 inch range, heavy flooding
rains are not anticipated. Otherwise, as storms progress east early
Thursday the potential for any severe weather looks nonexistent as
instability looks insufficient to support strong storms, but may be
enough for embedded thunderstorms through the event. Any continuing
stormy activity should exit our area Thursday afternoon.

Conditions in the wake of the weak cold front will be rather nice as
temperatures Thursday are still expected to remain above seasonally
normal values. In fact, temperatures will begin to climb in the
following days as a large ridge slowly shifts east through the
weekend. This will likely push temperatures well into the 70s over
the weekend with dry conditions prevailing.

Next chance at storms, and more seasonal temperatures, will arrive
early next work week as another shortwave trough lifts northeast across
the Plains States. Precipitation chances are a bit low confidence at
this time given the large model discrepancies, but what they do agree
on is cooler temperatures; with readings ranging from highs in the 60s
to low in the 40s. However, this does not currently look to include
temperatures cold enough to induce a frost or freeze, so it`s looking
likely that a killing frost will have to wait till November.


.AVIATION...(For the 18Z TAFS through 18Z Thursday Afternoon)
Issued at 1231 PM CDT WED OCT 22 2014

Main challenge for the 18Z forecast cycle is timing of precipitation into
the TAF sites. In general...prefer the scenario painted by the most
recent HRRR and local WRF run which hold off precipitation until 06z
or later. Should see MVFR conditions linger well into the early morning
hours tomorrow until conditions improve towards the end of the




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