Heavy rain. I shot this at the side of Damflask reservoir,Low Bradfield, Sheffield, Yorkshire, UK.
The white wild flower is known as wild carrot ( Daucus carota). Sometimes known as Queen Anne's Lace.
The purple/pink flower is Rosebay Willowherb (Epilobium angustifolium) sometimes called Great Willowherb or Fireweed.
You can see a shot of the reservoir in my gallery [link]
Also, some more wildflowers in that area in my gallery folder: "Wild Flowers"