National Weather Service Raw Text Product

Displaying AFOS PIL: RWSDMX Received: 2018-07-12 09:41 UTC

AWUS83 KDMX 120941

Weather Summary for Iowa
National Weather Service Des Moines IA
441 AM CDT Thu Jul 12 2018

Skies have been clear across Iowa throughout the overnight hours with
the exception of the far northeast where some mid level cumulus clouds
have been in place overnight. Early morning temperatures range from
the upper 60s in eastern Iowa to the mid to upper 70s in western Iowa. 
Winds have generally been out of the south at around 5 to 10 mph with
a few sites gusting to around 15 mph. 

Heat and humidity will continue to build across Iowa today as
southerly to southwesterly flow pumps in warmer air and moisture ahead
of an approaching cold front stretching across South Dakota into
central Minnesota. This will allow heat index values to build into the
low to mid 100s by this afternoon. A Heat Advisory is in effect for
portions of the state for this afternoon into early evening. The
frontal boundary will continue to slowly sag southward into northern
Iowa by tonight and remain across the state for Friday into Saturday.
This will usher in increasing chances for thunderstorms and heavy
rainfall from tonight through Friday night, with some storm chances
lingering into Saturday. A Flash Flood Watch has been issued for
northwestern Iowa for late this afternoon through the early morning
hours Saturday. A few strong to possibly severe storms will be
possible tonight in far northwest Iowa, and then possible into central
Iowa Friday into Friday night. Slightly cooler conditions are then
expected for the weekend into early next week.