Changes Coming to SPC's Day 1-3 Convective Outlook

The experimental 1-3 day convective outlook from the Storm Prediction Center (SPC) will soon become operational beginning October 22. What is this all about?

Remember how convective outlooks would be issued displaying slight, moderate, and high risk areas with their appropriate colored shadings?

Well, the upcoming changes will add to the levels of risk as depicted below....

Current:

1. See Text
2. Slight (SLGT)
3. Moderate (MDT)
4. High (HIGH)

Proposed:

1. Marginal (MRGL) - replaces the current SEE TEXT and now is described with Categorical line on the SPC Outlook.
2. Slight (SLGT)
3. Enhanced (ENH) - will replace upper-end SLGT risk probabilities, but is not a MDT risk
4. Moderate (MDT)
5. High (HIGH)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*source http://www.spc.noaa.gov/exper/dy1-3example/

 

MS