Winter Weather Products and Operations


Mission Statement

WFO Springfield will strive to accurately forecast winter weather and effectively communicate the potential of and existing winter weather hazards to the public. Through the continual assessment and enhancement of services, improvement in forecasting skill, and utilization of new technology, the goal of WFO Springfield is to better serve the Public.

I.     Event Flow Chart  | II.   WSW Product Criteria | III.    Product Table |

Event Flow Chart

Event Flow Chart

WSW Criteria

    • Winter Storm Watch

      Conditions are favorable for the development of hazardous winter weather conditions that Winter Storm warning criteria but the occurrence is still uncertain. Watches are issued 24 to 48 hours in advance of hazardous winter weather.

    • Winter Storm Warning

      Snowfall with an accumulation 6" or greater or a combination of freezing rain, sleet, and/or snow that results in hazardous or life threatening conditions.  Winter storm warnings are issued within 12 to 36 hours of the event.

                   Warnings for combination events are generally be issued when

                   significant ice  accumulations (at least a glaze ) and snow

                   accumulations of 3 inches or  greater are expected.

    • Heavy Snow Warning

                    All Snowfall with an accumulation 12" or greater.  

    • Ice Storm Warning

                 Ice accumulations of 1" or greater expected.

    • Winter Weather Advisory

                               Issued for snow accumulations less than 6" or the combination of

                               snow,  freezing rain/drizzle, sleet that cause a significant

                               inconvenience but does not meet warning criteria.  Advisories are

                               issued within 12 to 36 hours of the event. 

    • Freezing Rain / Drizzle Advisory

                   Hazardous ice accumulations less than 1/4" expected.

    • Blizzard Warning

      Sustained or frequent gusts to 35 kts or more and 1/4 mile visibility or less in falling and/or blowing snow expected within 12 to 36 hours.

    III. Product Table

    Type of

    Event

    Product

    Headers

    Outlook

    (HWO)

    Advisory

    Watch

    Warning

    Update Statement

    Cancel

    Storm

    Summary

    Snow

    Winter Storm Warning

    Heavy Snow Warning

    HWO

    WSW

    WSW

    WSW

    WSW

    WSW

    PNS

    &

    LSR

    Freezing

    Rain

    Freezing Rain/Drizzle Advisory

    Ice Storm Warning

    Winter Storm Warning

    HWO

    WSW

    WSW

    WSW

    WSW

    WSW

    Sleet

    Winter Weather Advisory

    Winter Storm Warning

    HWO

    WSW

    WSW

    WSW

    WSW

    WSW

    Mixed

    Winter Weather Advisory

    Winter Storm Warning

    HWO

    WSW

    WSW

    WSW

    WSW

    WSW

                   
   

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