In article .com,
"Jay Honeck" wrote:

Because there are so few reporting stations in NW Indiana (strangely,
they are RADIO AWOS's, but they don't appear in computerized weather
depictions, including XM), we were proceeding in the "blind"
(relatively speaking) with XM. The few reporting stations in the area
were reporting good VFR ahead -- but we were running into wildy
variable conditions, running from good VFR to just above minimums --
often within just a few miles. Just south of South Bend conditions
dropped to absolute zero, with visibility and ceilings well below
anything we're comfortable flying in, so we did a 180 and landed for
the night.

Just like what I had coming home from AirVenture.
Put this in your memory file for "localized weather conditions" for
future flight.
This is the kind of knowledge we have lost and continue to lose with the
flight service consolidation. Time was, the FSS briefers who had spent
years at their facility would tell you about the local conditions in
their area.