ProbWarn Discussion:

Slider bars give too much control, increments of 5 or 10 should be used (forecasters don’t think in terms of 66 vs 68 %). Group uncertainty together in widget following sliders for motion and speed… peak probability should be labeled ‘trend prob’ or ‘mid prob’–has lead to some confusion. Preview of product is necessary before saving…

Product for low probabilities, allows for communication of threats that forecaster may just wait on otherwise.

pulsing probabilities can lead to confusion to end user… How often do you update grids? and how does the updates get translated to outside user? how can we issue the right product to get the desired reaction?

need to more clearly tie original threat polygon to storm, either clarify naming convention (e.g., alpha, beta, etc–something more obvious than the utc convention currently used) or move polygons along automatically with time using set motion from warning.

Kristin Kuhlman (Gridded Warning Cognizant Scientist)