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Special Weather Statement

The Special Weather Statement (SPS) is designed to alert customers to a short term hazardous weather threat, occurring within 6 hours of product issuance, which may require a heightened level of awareness or action.

An SPS may be issued for strong thunderstorms that approach, or are expected to approach, severe convective criteria. General criteria for a "Near-Severe" thunderstorm are considered to be one or a combination of the following events:

  • Thunderstorm winds <= 57 mph

  • Hail < " diameter

  • Frequent to continuous lightning

  • Funnel clouds or cold air funnels 

 

 
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     Page last Modified: 21 April, 2005 9:10 AM