Tuesday, May 24, 2022

Midland storms and ProbSevere v3

A slew of storms entered Midland's CWA. Both forecasters in Midland noted how ProbSevere v3 probabilities seem to better match their own subjective threat levels for hazards. This right-moving storm in Figure 1 has a probability of severe of 66%, compared to 34% in v2. It later dropped golfball-sized hail. 

One forecaster working this office said he likes how ProbSevere integrates and quantifies their own internal thought process to make objective and consistent guidance for warning decision-making.

Figure 1: ProbSevere contours, MRMS MergedRef, and NWS severe weather warnings for a storm entering Texas.

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