382
FXUS63 KDVN 100519
AFDDVN

Area Forecast Discussion
National Weather Service Quad Cities IA IL
1219 AM CDT Tue Jun 10 2025

.KEY MESSAGES...

- Quiet weather in the short term as some high level smoke may
  move through tomorrow.

- Pattern turns active with the first chance of storms, some
  strong to severe on Wednesday.

- Temperatures are forecast to warm as well to above normal
  values later in the week and into next week.

&&

.SHORT TERM /THROUGH WEDNESDAY/...
Issued at 1219 PM CDT Mon Jun 9 2025

Upper level low across the area is forecast to move east of the
area overnight tonight into Tuesday. A surface cold front moving
through the area today will bring keep in place drier and cooler
air across the area. Tomorrow, ridging attempts to build into
the area leading to return flow. This return flow will bring
slightly warmer more moist airmass than today to the area.
Dewpoints in the 50s with highs near 80 will still be nice from
a sensible weather perspective. With the flow NW tomorrow, some
smoke may make its way into the area. Have kept cloud cover at
20 percent or above to account for the possible milky skies. Still
though don`t forget the sunscreen!

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/...
Issued at 153 PM CDT Mon Jun 9 2025

Return flow will start in earnest Tuesday evening into Wednesday
as a cold front moves south through MN. Guidance has this
boundary stopping just to our north a weak wave passes over it
on Wednesday, leading to showers, storms, some severe and heavy
rain. After this, ridging attempts to build into the area.
Repeated waves around the top of this ridge will lead to
repeated chances for showers and storms through most of the
long term period. WPC has close to 2 inches of rain through day
7 across the northern CWA. Dewpoints will increase across the
area reaching the 60s.

Looking to Wednesday, there is a marginal risk for severe
weather across the northern CWA in the vicinity of this
boundary on Wednesday. Deep layer shear in the 35 to 45 kt range
will lead to thunderstorm updraft organization. With increasing
CAPE to the south, plentiful instability will be around for
storms. Flow near the boundary looks to be out of the east,
while the 0-3km shear vector is more out of the west, suggesting
good directional shear in the low levels. That said, the 0-3km
shear vector along with the 0-6km shear vector being parallel to
the boundary suggest multicell storms, however we could see some
short-lived low level rotation. The main threat from any storm
would be damaging winds, heavy rain with even a chance of brief
tornadoes. The GFS also has up to 2 inches of rain with this
system. These values would have to be convectively driven as the
overall synoptic flow is lacking a real H85 jet to really advect
good moisture. Nonetheless, this starts our chances for precip
across the area for the rest of the long term period.

&&

.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 1218 AM CDT Tue Jun 10 2025

Surface high pressure is sliding across the Central Plains this
morning with VFR conditions expected through the period. Smokey
skies aloft will one again filter across the region from wildfires
in Canada. At this time we are not expecting visibility
restrictions at the surface. Winds will be out of the west
through the day and switch to out of the south in the evening
hours.

&&

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

&&

$$

SHORT TERM...Gibbs
LONG TERM...Gibbs
AVIATION...Britt