We suggest you avoid being stuck out in the cold, but should duty require it, make sure you are prepared with the necessary cold weather gear. When dexterity and weapon handling are a concern, Blackhawk winter gloves and Hatch winter gloves have you covered.
5.11 Tactical offers a wide selection of outerwear including the 5.11 Tactical Aggressor Parka, 5.11 Tactical Response RAID Jacket and the 5.11 Tactical 5-in-1 Field Jacket. Blackhawk Warrior Wear and Under Armour also offers a few top notch choices.
Baselayers are available from the Under Armour ColdGear line, Blackhawk's Baselayers, and with 5.11 Tactical's own Cold Weather Mock Undergear Shirt. Under Armour ColdGear socks and the Under Armour Tactical ColdGear beanie will keep your opposite ends warm.