Crystal Lake, Illinois 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

111
FXUS63 KDVN 031123
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
523 AM CST Tue Dec 3 2024

.KEY MESSAGES...

- Warmer temperatures will be seen into Wednesday, prior to
  temperatures plummeting again Thursday. Going into the weekend
  and beyond, the temperatures will trend more seasonal.

- There will be little to no precipitation chances through the
  week, but some snow/rain showers are possible Wednesday
  afternoon.

- Wednesday will be the warmest day of the week, but with strong
  winds it will feel much colder. While temperatures will be in
  the 40s, the gusty winds will keep wind chills in the 20s and
  30s.

&&

.SHORT TERM /THROUGH WEDNESDAY NIGHT/...
Issued at 333 AM CST Tue Dec 3 2024

Today, high pressure will move southeast across the area. Winds
will be light this morning and then become southwest and
eventually south at about 10 to 15 mph as the high exits
southeast. Otherwise, quiet weather with some high level clouds
and high temperatures in the upper 20s and lower 30s. South
breeze will continue tonight with skies becoming mostly clear.
Lows will be in the low to mid 20s, but wind chills will be in
the teens.

Wednesday, a warm front will lift through early in the day with
a cold front quickly following. Yes, temperatures will top out
in the mid and upper 30s north to low to mid 40s south, but with
the strong winds and cold front moving through it will feel
colder. Temperatures in the NW CWA may see falling temperatures
during the afternoon. In addition, some upper level energy will
be sweeping down across the area in cyclonic flow aloft. This
may result in a slight chance (20%) for some snow/rain showers
during the afternoon. Little, if any, accumulations are
expected. The main focus will be the very strong NW winds behind
the powerful cold front. Wind speeds will be increasing through
the day with the highest gusts coming through the area during
the afternoon and evening. Wind gusts of 35 to 45 mph are
expected, with the higher gusts north of I-80. Arctic air will
surge into the area overnight with winds remaining strong. Lows
will be in the mid single digits NW to low teens south and east.
Wind chills early Thursday will range between zero and -12.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
Issued at 333 AM CST Tue Dec 3 2024

Thursday, arctic high pressure will build into the area with
continued blustery NW winds. Highs will be in the upper teens to
mid 20s, with PM wind chills in the upper single digits and
teens. Skies will be mostly sunny. Thursday night the ridge axis
will be overhead with nearly calm winds. Lows will once again be
in the upper single digits to lower teens.

A sustained warm up will begin Friday afternoon, as southwest
flow develops. Highs will return to the 30s Friday and 40s to
low 50s through the weekend.

A system may affect the area Sunday night into Monday. The
forecast has some slight chances for all rain for areas east of
the MS River.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 523 AM CST Tue Dec 3 2024

Some MVFR ceilings may linger for an hour or two along the MS
River sites. Otherwise VFR will prevail through the period with
predominantly SW winds. Some LLWS is possible late tonight with
a WSW wind around 40 kts.


&&

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

&&

$$

SHORT TERM...14
LONG TERM...14
AVIATION...14