132
FXUS63 KDVN 241144
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
544 AM CST Tue Dec 24 2024

.KEY MESSAGES...

- Dreary weather through Christmas Day. Freezing drizzle is
  possible Christmas morning along and north of Interstate 80
  with drizzle possible through the rest of the day.

- Briefly cooler weather is forecast today before above normal
  temperatures move in for the rest of the period.

- Active weather is forecast after Christmas through the end of
  the period with several chances of rain.

&&

.SHORT TERM /THROUGH TONIGHT/...
Issued at 255 AM CST Tue Dec 24 2024

High pressure is forecast to build across the area today into
tonight. This will bring quiet weather to the area through tonight.
Satellite and model data shows stratus across the area that is
forecast to remain in place across the area resulting a dreary
day across the area. In addition, patchy fog may develop but
confidence is low in this occurring as models show drier lower
levels likely resulting in low clouds. High temperatures today
will be in the mid to upper 30s. Low temperatures Tuesday night
will be in the upper 20s north of Highway 30 to the lower 30s
south.

&&

.LONG TERM /WEDNESDAY THROUGH MONDAY/...
Issued at 255 AM CST Tue Dec 24 2024

The pattern remains active through the long term period, as a
longwave trough moves across the western U.S. with a series
of compact and vigorous shortwaves lifting across the central
US. These systems will bring warmer and more moist air into the
region through the weekend with cloudy skies each day.

On Christmas Day, a storm system passing to our south and east
will spread light rain into parts of northwest Illinois
Christmas Day into the night. Abundant low level moisture
trapped below a strong inversion on soundings will lead to the
development of patchy fog as well as the potential for drizzle
Christmas morning that will continue through the day.
Temperatures Christmas morning will be around freezing along
and north of a Fairfield to Galesburg which may lead to freezing
drizzle as precipitation begins but temperatures will be close.
As temperatures are forecast to warm above freezing around 9 AM
allowing precipitation to change over to drizzle. There is low
confidence at this time that precipitation will fall as freezing
drizzle.

A series of shortwaves moving through the flow will bring almost
daily chances of precipitation to the area Thursday into early
next week. Thermal profiles each day support precipitation
falling as all rain. Precipitation totals are likely to be light
through the weekend with totals likely under an inch.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 532 AM CST Tue Dec 24 2024

High pressure moving into the area will keep stratus clouds in
place at eastern Iowa TAF sites through the forecast period.
Periods of MVFR to IFR ceilings and MVFR visibilties are
possible through 15 UTC before widespread MVFR conditions will
prevail through 00 UTC. Ceilings are forecast to lower tonight
after 06 UTC with IFR to LIFR ceilings possible with periods of
MVFR visibilities. Winds will be around 5 knots through the
period and turn from north to east through the day.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...None.
IL...None.
MO...None.

&&

$$

SHORT TERM...Cousins
LONG TERM...Cousins
AVIATION...Cousins