This isn’t liquid water, but instead, ice drops. A brief, quick shot of rain swept over the area in sub-freezing temperatures, leaving the large drops frozen to my windshield exactly as they landed. Appropriately enough, this scene occurred in the mostly empty National Weather Center parking lot, itself was a slippery rink of icy glaze upon which I deliberately spun the vehicle a bit to hone ice-driving skills (and have some fun) before heading home.
Norman OK (3 Mar 19) Looking E
35.1826, -97.4396