Thanks for the articles! The temperature does indeed cause my Raynaud's to act up. Keeping warm definitely helps with that. It also helps with everyday (non flare related) joint pain. Where I live, it's always cold this time of year, but I'm not having flares 24/7. Like one of the articles says, I can predict the weather. "Ah, there's a cold front coming in. I can feel it. I'm starting to feel flu-ish, my fingers and wrists are starting to hurt."
I decided to do some research. What makes cold fronts different than normal cold weather? The barometric pressure rises. Today it's 30.29, according to the National Weather Service, anything about 30.20 is high. Over the past couple days, it's been consistently rising...quite a bit. To convince myself I'm not crazy, I researched whether high and/or low barometric pressure is known to cause autoimmune flares. Bingo! It's been shown that people with autoimmune diseases can experience flares when barometric pressure changes quickly, like when a warm or cold front passes through. A warm front causes barometric pressure to drop, a cold front causes it to rise.
For asthma there's something called an "asthma action plan." It contains instructions for how to proactively prevent asthma attacks. For example, if you start getting the flu, you adjust your medication appropriately. I'm not sure if there's such a thing as a "lupus action plan."
Anyway, I think this would be an excellent article topic because no matter how warmly one dresses, it's not protective again sudden changes in barometric pressure.