Severe thunderstorms are possible over portions of Northern Iowa Sunday afternoon into Sunday evening. Damaging Winds and Large Hail seem to be the main threats, an isolated tornado is also possible. The Storm Prediction Center has most of Northern Iowa under a “Slight Risk” of severe weather Sunday afternoon and Sunday evening. Stay with Star 106 for the latest weather information. Below is the latest information from the Storm Prediction Center on Sunday’s Severe Weather Potential. For more on the potential for severe weather Sunday afternoon and Sunday evening CLICK HERE.
A Slight risk has been introduced across northwest IA into southern
MN. Most guidance shows an embedded shortwave impulse or possible
MCV migrating across the area on Sunday. This appears plausible
given expected convection over the central Plains in the Day 1
period. A weak warm front will also be draped across the region from
near the Sioux Falls area southeastward toward the Quad Cities IA
vicinity. Strong heating and upper 60s F surface dewpoints will
result in strong destabilization and any storms that develop will
have the potential for damaging wind gusts and hail. Additionally,
given the warm front draped across the area, a few tornadoes are
also possible due to enhanced SRH and mean mixing ratios near 16
g/kg. Some guidance suggests capping could limit coverage of
storms, but most guidance does develop at least isolated storms.
Given the thermodynamic and kinematic parameter space supportive of
severe supercells/bowing segments, an upgrade to Slight appears