Skip Navigation Linkswww.weather.gov 
Go to NOAA's main page Go to the NWS main page National Weather Service Forecast Office

Jackson, MS

Local weather forecast by
"City, St" or zip code

  


What Makes a Winter Storm?

Cold Air

Below freezing temperatures in the clouds and near the ground are necessary to make snow and/or ice.

Moisture

To form clouds and precipitation. Air blowing across a body of water, such as a large lake or the ocean, is an excellent source of moisture.

Lift

Something to raise the moist air to form the clouds and cause precipitation. An example of lift is warm air colliding with cold air and being forced to rise over the cold dome. The boundary between the warm and cold air masses is called a front. Another example of lift is air flowing up a mountain side.

Visible Imagery of Storm on President's Day in 1979

    WINTER STORMS ARE CONSIDERED DECEPTIVE KILLERS BECAUSE MOST DEATHS ARE INDIRECTLY RELATED TO THE STORM

  • People die in traffic accidents on icy roads.
  • People die of heart attacks while shoveling snow.
  • People die of hypothermia from prolong exposure to cold.

Winter Deaths

Everyone is potentially at risk during winter storms. The actual threat to you depends on your specific situation. Recent observations indicate the following:

    Related to ice and snow:
  • About 70% occur in automobiles.
  • About 25% are people caught out in the storm.
  • Majority are males over 40 years old.

    Related to exposure to cold:
  • 50% are people over 60 years old.
  • Over 75% are males.
  • About 20% occur in the home.

Return to Winter Storm Rules Page





Weather Hazards | Weather Forecasts | Present Weather
Past Weather | Spotter Training | Contact Us

National Weather Service
Jackson, MS
234 Weather Service Dr.
Flowood, MS 39232
(601) 936-2189
Web Master's Email: sr-jan.webmaster@noaa.gov
Page Last Modified: February 20, 2006

Disclaimer
Credits
Glossary
Comments/Feedback
Privacy Policy
About Us
Career Opportunities