Although it still seems to be mid-winter on the east coast, it's spring here in the Churchill area. And with the change in season should come a few small changes to our plans for natural disaster.
 
Sure, you still have to know how to turn off the electricity, gas, and water. But in winter maintaining a supply of fresh water isn't that hard. Most days, it's falling from the sky. As summer approaches, however, fresh water gets progressively harder to come by and having a store of it in the basement or garage becomes a good idea.
 
The need for a readily available light source changes with the season as well. If the power goes out at midnight, it doesn't matter what the season is, you'll still need an LED or flashlight. But as summer approaches, the days get longer and the nights shorter, so you're dependance on artificial light decreases as summer approaches.
 
The food you store in your 72-hour kit could also vary by season. In the winter months with their cold temperatures, the ability to provide hot meals like soups becomes important. This not only affects your meal plan, but the requirements for cooking equipment. In warmer months, cold foods like sandwiches and finger foods might suffice.
 
Your plan for adequate clothing might also change with the season. Warmer clothing in winter is obvious. And while such clothing might not be needed during a summer day, as night approaches and the temperature drops, such clothing might mean the difference between a restless night and a good night's sleep. 
 
What doesn't change is your whistle. Summer or winter, rain or shine, you always need a whistle. Your need for a tarp, too, doesn't change. In winter it protects from the rain. In summer it protects from the sun.
Most importantly, regardless of the season or the weather, you always need a plan.