How to Signal
Strobe lights are great for night signaling, but avoid looking at the flash. If you are able to get noticed, if you have been watching the strobe flash, you will not be able to see. Blindness from the strobe, while only temporary, will hinder and slow down the rescue.
Signal mirrors are great for all environments, but are limited to only day use. Practice using your mirror before you need it! Once you get the attention of an aircraft, move the flash to the rear of the plane to avoid blinding the pilot, not to mention making him/her angry.
You can signal from the ground by stacking rocks, piling snow or brush. An "X" means you are unable to proceed and need assistance. Use the sizes I suggest in the illustration so it can be easily seen.
