Rain has been hard to come as of late with high pressure anchored over
the Midwest and Great Lakes. Dry air associated with the high has
really helped to scour out the atmosphere of moisture, making it hard to
get much precipitation from the afternoon cloud cover.
That will change, however, heading into the weekend as temperatures are
expected to slowly inch up as the high shifts a little further east.
Southerly winds will develop Friday, lasting into the weekend, pulling
in more moisture from the Gulf. This will cause dew point temperatures
to rise as well, climbing into the low 60s Friday, mid 60s Saturday and
then in the low 70s Sunday. This could push the heat index Sunday
afternoon just shy of the triple digit mark.
The increase in moisture will also mean an increase in rain, but even
that looks to remain isolated. Our last measurable rainfall came back
at the end of July, on the 29th, when only 0.01 inches fell. So, not
much. Before that, 0.86 inches fell on the 26th. Our ground is pretty
dry and the rain would be a welcomed sight for many this weekend. It's
possible that our first chance for rain will arrive as early as Saturday
morning from a weakening area of showers and isolated thunderstorms.
If that does in fact occur, it'll likely increase our chance for a few
more showers/storms heading into the weekend and would likely cool our
temperatures a bit. If, however, the rain Saturday morning doesn't
materialize then we've only got an isolated chance during the afternoon.
Forecast high for Saturday is currently 86 degrees.
Most of Sunday is looking to remain dry as warm air moving in aloft puts
a 'cap' or lid on our atmosphere and prevents storms from developing. A
slightly higher risk for thunderstorms will occur Sunday night into
Monday morning as a complex of storms move in from the northwest. These
will be aided by a cold front that is set to move through during the
first half of the day Monday. Highs on Monday are forecast to warm
close to 90 degrees.
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