166
fxus63 kiwx 230729
afdiwx
area forecast discussion
national weather service northern indiana
329 am edt thu apr 23 2026
.key messages...
- areas of fog near and north of the michigan border will lift early
today.
- showers and scattered and thunderstorms are expected late
tonight and friday. marginally severe storms are possible friday.
- unseasonably mild today and friday with highs in the 70s to
around 80 degrees.
- dry this weekend. the remaining flooded fields will have a
relatively brief chance to dry out.
&&
.discussion...
issued at 231 am edt thu apr 23 2026
a very moist atmosphere was over the area with dew points in the 50s
across the entire area. areas of radiational fog were forming over
far northern indiana into michigan were skies had cleared and where
dew points were in the 50s. the fog will mix out by late morning
favoring a strong signal according to conditional climatology.
the stage will be getting set for an active weather day friday as
strong impulses approach an environment that will be becoming
increasing more unstable with modest deep-layer shear. in
addition to the instability, precipitable water values will be
topping out between 1.25 to 1.50 inches. a narrow atmospheric
river will translate over the area friday afternoon, adding to
the potential for locally heavy rainfall in addition to the
damaging wind threat.
the potential for heavy rain will continue early next week as
a strong impulse reaches the area. wpc indicated rainfall amounts
around 1.00 inch across the entire forecast area monday into
monday night. these rainfall amounts will add to the potential
for renewed river flooding. at the present time, 6 of the area
rivers were in "action" stage and 3 of the area rivers were in
"flood" stage.
&&
.aviation /06z tafs through 06z friday/...
issued at 110 am edt thu apr 23 2026
radiational fog will be the main aviation concern this morning
given recent rain and mainly clear skies/light winds. best
chances for ifr are at ksbn but guidance is mixed on how
widespread/dense fog will become this morning so will hold with
just a tempo 2sm for now. otherwise, vfr expected through the
period with next chances of rain/aviation impacts not until late
fri morning.
&&
.iwx watches/warnings/advisories...
in...none.
oh...none.
mi...none.
marine...none.
&&
$$
discussion...skipper
aviation...agd