Area Forecast Discussion
Issued by NWS Quad Cities, IA IL

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592
FXUS63 KDVN 221109
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
609 AM CDT Sun Apr 22 2018

...12z AVIATION UPDATE...

.SYNOPSIS...
Issued at 328 AM CDT Sun Apr 22 2018

High pressure situated from the Upper MS Valley to the Great Lakes
with low pressure in the Lower MS Valley. The system to our south
was spreading a veil of cirrus with some mid level clouds across
our area. The high to our north was providing a dry eastern flow.
Current readings were in the 40s.

&&

.SHORT TERM...(Today and Tonight)
ISSUED AT 328 AM CDT Sun Apr 22 2018

Forecast focus on a pleasant spring day.

Mid/high level clouds will be seen across the area today and
tonight, along with a dry east wind. The clouds should decrease
tonight in the north. Highs will be in the lower to mid 60s with
lows in the upper 30s to lower 40s.

.LONG TERM...(Monday through Saturday)
ISSUED AT 328 AM CDT Sun Apr 22 2018

Little change to the previous long term forecast as cut off H5 low
will slide south of the area.  Quiet weather with a warming trend is
expected through the beginning of the week.  Midweek into next
weekend, there will be two cold frontal passages through the area.
Overall airmass changes behind these fronts will still lead to
temperatures much warmer than our last snap of winter.  Again, main
target of opportunity will be the high temps each day.  MOs guidance
looks to be higher of most temp guidance and likely a good starting
point for Monday and Tuesday highs.

Midweek frontal passages could bring schc to chc pops to the area.
Looks like most guidance is struggling to create precip across the
area with these fropas. Weak sfc convergence along these fronts will
preclude chances of surface based showers.  As a result, most of the
showers will be the result of midlevel fgen.  The first front looks
to have rather weak fgen so likely a dry passage of this front.  The
second front appears to have better fgen.  As a result guidance has
QPF for the area. There are differences in the timing of this front
in guidance.  Overall chance of precip looks to occur within a 6
hour period.  As we get closer to the end of the week, the longer
duration pops will likely be narrowed down to a clearer window.
Overall sensible weather will remain in a spring like pattern.

&&

.AVIATION...(For the 12Z TAFS through 12Z Monday Morning)
ISSUED AT 608 AM CDT Sun Apr 22 2018

VFR conditions will prevail at all sites through this TAF cycle.
Easterly winds around 10 kts will occasionally gust between 15-20
kts this afternoon, before diminishing this evening.

&&

.DVN WATCHES/WARNINGS/ADVISORIES...
IA...NONE.
IL...NONE.
MO...NONE.
&&

$$

SYNOPSIS...Haase
SHORT TERM...Haase
LONG TERM...Gibbs
AVIATION...Speck



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