Area Forecast Discussion
Issued by NWS St. Louis, MO

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FXUS63 KLSX 211144
AFDLSX

AREA FORECAST DISCUSSION...UPDATED AVIATION
NATIONAL WEATHER SERVICE ST LOUIS MO
644 AM CDT Mon Jul 21 2014

.SHORT TERM:  (Through Late This Afternoon)
Issued at 221 AM CDT Mon Jul 21 2014

Mercury will rise a few more degrees today compared to yesterday
as influence of the surface ridge across the Ohio River Valley
weakens and is replaced by southerly flow.

CVKING

.LONG TERM:  (Tonight through Sunday)
Issued at 221 AM CDT Mon Jul 21 2014

Beginning to feel like a broken record here, but didn`t really
make many changes to the forecast. Models continue to be in good
agreement with a few seasonably "hot" days early this week thanks
to the upper level ridge nosing into the Midwest, followed by
cooler temperatures the second half of the week as the flow once
again becomes northwest aloft. The transition will be marked by a
cold front and chance of thunderstorms Tuesday night and Wednesday
across the area.

The front will move back into the CWA by this weekend with chances
of thunderstorms littering the extended forecast as northwest flow
shortwaves interact with this frontal boundary. Temperatures should
slowly return to normal with highs in the middle to upper 80s this
weekend.

CVKING
&&

.AVIATION:  (For the 12z TAFs through 12z Tuesday Morning)
Issued at 643 AM CDT Mon Jul 21 2014

With surface ridge off to the east, will see south winds pickup a
bit today with just a few diurnal cu developing. Then cu to
diminish by sunset once again. Some patchy light fog at KUIN, so
added tempo mention through 13z Monday.

Specifics for KSTL:
With surface ridge off to the east, will see south winds pickup a
bit today with just a few diurnal cu developing. Then cu to
diminish by sunset once again.

Byrd
&&

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

$$

WFO LSX





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