Area Forecast Discussion Supplemental Images for December 11, 2014 4 a.m. CST Forecast Issuance
The 11.00z NAM forecast soundings for Des Moines valid at 18z (noon) today. This shows the strong inversion around 925 mb or about 2000 feet which locks in the low level moisture resulting in the low level stratus deck that will plague central Iowa today into tonight.
The 11u-3.9 Satellite Channel (or Fog Product) at 09z (3am) 12/11/204 shows the expansive stratus deck (black) across much of the Midwest, Great Lakes, and Plains.
Here’s the Area Forecast Discussion that these images supplement: