On This Day: Ohio River Valley Severe Weather Outbreak

On this day on 2013, one of the larger severe weather and tornado outbreaks since 2011 took place across much of the central and northern Ohio Valley. The system produced over 70 tornadoes across 7 states, and Illinois/Indiana had 55 of those tornadoes. The system was well anticipated ahead of time, as the SPC started […]

Tornado Impacts Western Part of Indianapolis, IN

Last evening, a small and unique supercell formed in central Indiana, just west of Indianapolis. This supercell formed in a fairly favorable environment for a supercell to develop and be sustained in. While upper level flow was generally fairly weak across the region, the wind shear in the lowest portions of the atmosphere was primed […]

A Technical Discussion of the June 29, 2012 Derecho

Four years ago today, one of the more infamous derechoes in recorded meteorological history formed. This formed across northern Illinois and northern Indiana, and raced southeastward across the northern fringe of an intense surface high pressure system. This was an absolutely classic derecho, and was one of the more destructive events in recent memory, and […]

In Depth Forecast Discussion: Northern Ohio Valley, Wednesday

Synoptic Overview Based upon SPC objective¬†analysis from the 12z upper air observations this morning, there is a 300 mb ridge established deeply over the southwestern United States, as denoted by the anticyclonic stream lines across that region. This has shifted its axis westward with time as a deeper and more intense shortwave trough is propagating […]