Some elevated storms in Wisconsin have been producing one-inch-diameter hail today. One such storm traveled just west and north of Madison, Wisconsin (Figure 1).
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| Figure 1: ProbSevere contours and MRMS MergedReflectivity for an elevated storm in Dane Co., Wisconsin. |
The storms have been forming in a low-CAPE environment (all of the CAPE is from the most-unstable parcel), with decent effective bulk shear. In ProbSevere version 3, ProbHail has been handling this event better than version 2. While ProbWind v2 is elevated (40%), this isn't really a wind threat, but solely a hail threat. We've seen that ProbSevere v3 consistently discerns the most prominent hazard type better than v2, generally speaking.
One-inch-diameter hail was reported at 15:28 UTC, just a few minutes after a large increase in ProbHail v3 (Figure 2), which was partially due to an increase in the maximum composite reflectivity.
One-inch-diameter hail was reported at 15:28 UTC, just a few minutes after a large increase in ProbHail v3 (Figure 2), which was partially due to an increase in the maximum composite reflectivity.
