I don’t know about your part of the world, but we had some pretty severe storms in the Netherlands in the past few years. It is not that common, though. I’ve created some commercial use kits with stormy nights as a theme. Not only suitable for the weather, but also for designs for the more personal storms in your head. That are hopefully also not that common 🙂
Stormy Night Brushes [CU] contains 9 items in both .png and .ABR format (compatible with Photoshop CS6 or higher). Brushes differ in size (drop is smallest, 741px; sizes as shown on preview (12×12 inch background). All items photographed and extracted and/or hand-drawn by me. Exception: ‘Woman’ and ‘storm clouds’ were created from public domain images.
Stormy Night [CU] contains 6 .png elements (1 also comes in a layered .PSD format for easy recoloring) and 3 colored papers (12×12 inch, 300 dpi) for commercial use. Sizes of the elements differ; sizes as shown on preview (a 12×12 inch background).