Summery Here, Wintry in Iowa to Missouri, Oklahoma & Texas

May 2nd, 2013 at 11:59 am by 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):

DM - Hwy 5 @ SW Connector (35)

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.

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