WINTER SEASON

ADVISORIES
SNOW ADVISORY
A Snow Advisory will be issued when 3-5 inches is expected to fall. Check with your NWS office for local snowfall requirements.
BLOWING SNOW ADVISORY
A Blowing Snow advisory will be posted for events in which visibility is intermittently 1/4 mile or less.
FREEZING RAIN / FREEZING DRIZZLE ADVISORY
This requires that hazardous driving conditions be taking place and/or up to 1/4 inch of freezing rain on tree branches and/or if power lines break.
WINTER WEATHER ADVISORY
A Winter Weather Advisory will be issued if conditions warranting two separate winter advisories are met.
WATCHES
WINTER STORM WATCH
A Winter Storm Watch may be issued when conditions are forecast to meet the criteria for more than one warning with in the next 36 hours. A watch for a single winter weather event does not exist, for example a Wind Chill Watch or a Heavy Snow Watch. Just the same, if a forecaster thinks there will be significant snow and ice tomorrow, they will issue a Winter Storm Watch.
WARNINGS
WINTER STORM WARNING
A Winter Storm Warning will be issued if conditions are forecast to meet the criteria for two separate warnings in the next 12-24 hours. Example: If you have Heavy Snow Warning conditions along with Wind Chill Warning conditions, a Winter Storm Warning will be issued.
BLIZZARD WARNING
A Blizzard Warning will be issued when the following conditions are forecast to last at least 3 hours. Falling and/or blowing snow frequently reducing visibility to < 1/4 mile AND sustained winds or frequent gusts > 35 mph.
ICE STORM WARNING
An Ice Storm Warning will be issued if freezing rain/drizzle is occurring with a significant accumulation of ice (more than 1/4 inch) or accumulation of 1/2 inch of sleet.
HEAVY SNOW WARNING
A Heavy Snow Warning will be issued if 6 or more inches of snow is expected in a 12 hour period.