A watch is issued when conditions are favorable for a particular weather event to occur. This means that the event is possible, but not yet certain. A watch is intended to alert the public to the potential for severe weather and to encourage them to be prepared.
A warning is issued when a hazardous weather event is occurring, imminent, or likely. This means that the event is a threat to life and property and that people in the affected area should take immediate action to protect themselves.
An advisory is issued when a hazardous weather event is occurring, imminent, or likely, but the event is less serious than a warning. Advisories are intended to inform the public of less serious conditions that could still cause significant inconvenience and may require caution.
Source: National Weather Service
Winter storms often have a large impact on the day to day life, including a major impact to travel.
Before a winter storm hits, make sure to have an emergency kit in your car incase you get trapped or stuck during a winter storm on the road way.
Your primary concerns at home or work during a winter storm are loss of heat, power and telephone service and a shortage of supplies if storm conditions continue for more than a day. In either place, you should have available:
Each year, on average, more than 5,000 people are killed and more than 418,000 are injured due to weather-related vehicle crashes. If you need to drive in snow or cold conditions, TAKE IT SLOW IN THE SNOW. Black ice can be difficult to see. If the temperature is near freezing, drive like you’re on ice–you may be!
Before you leave the house, especially before a longer trip in winter, make sure all fluid levels are full and ensure that the lights, heater and windshield wipers are in proper condition. Keep your gas tank near full to avoid ice in the tank and fuel lines. Avoid traveling alone. Let someone know your timetable and primary and alternate routes. Then call 511 for the latest traffic and road incidents, including construction and weather conditions and restrictions. Every state offers this Department of Transportation service. Call before you leave; it might change your plans!
Fully check and winterize your vehicle before the winter season begins. Carry a Winter Storm Survival Kit that includes the following:
Source: National Weather Service