1. Disastrous Weather Effects
   1. December Ice Storm in Maine
      1. huge power outage
      2. schools out 2 wks
      3. jobs lost
      4. cost in trees
      5. replacing power poles, etc.
   2. Rains in CA
      1. mudslides
      2. highways ripped apart
      3. expensive homes in ocean
      4. insurance costs
   3. Weather in FL
      1. Killer tornadoes
      2. freeze in March
         1. dead oranges
         2. costs of other fruits
   4. Other Disasters
      1. Flash floods in AZ
      2. Heavy rains in  Texas
2. Not so bad effects
   1. Mild winter in New England
   2. Flowers in Death Valley Desert
   3. Skiing conditions in CO
   4. Mild winter in upper plains
3. Long-term effects
   1. Power lines go underground
   2. Landscape
      1. trees
      2. shrubs
4. Really important effects
   1. Sense of powerlessness
   2. Fear of next winter

Source: http://webster.commnet.edu/grammar/composition/brainstorm_outline.htm