Summery Here, Wintry in Iowa to Missouri, Oklahoma & TexasMay 2nd, 2013 at 11:59 am by Chad Evans under Chad's WLFI Weather Blog
It is snowing in Des Moines, Iowa on May 2! 2-5″ of accumulation is possible by tomorrow morning. Check out traffic cam on Iowa Route 5 (Des Moines Southside By-Pass):
Here, we are already in the 70s with altocumulus castellanus clouds & congestus towers in the western third of the viewing area. This indicates instability for a few scattered t’storms today (30%) generally west of a Winamac to Camden to Frankfort & Lebanon line. Many of you will stay totally dry today with only 30% coverage (east of that line you will stay dry for sure).
I cannot rule out an isolated pulse-type severe storm or two (despite lack of bulk shear), given surface CAPE (juice) values of up to 2000 J/kg & steepening low- & mid-level lapse rates this afternoon. Threat would be wind/hail,
Highs will run from lower 80s in our eastern half to about 80 in the far west.