
Weather at a glance...
Source: WCNC 6-Charlotte NC
Old Weather Stuff...
This is a loop of a Supercell W/tornado where the "hook" is, shapes like this are what meterologist pay close attention to...
A little background here, WSR stands for Weather survelance radar, this is reffering to the mass-network of government-deployed radars to observe weather The earliest network was the WSR-1955 Doplor or WSR-55D the photograph here is from that early network, this one is from topika Kansas
| Roll mouse over the scope numbers for the loop... | 20 nautical mile scope, | 10 NM Scope, | 10 NM Scope, | 10 NM Scope, | 10 NM Scope, | 5 NM Scope, | 5 NM Scope, | 5 NM Scope, | 5 NM Scope. |
in every one of thease shots, the tornado is in progress, just that in the upper-left-most photos are before the NWS zoomed into the cell by magnifing the scope-range. the appendage that looks like a arm-hook is the wrap-around precipitation for which the funnel is located. You can learn much as to what to look out for more by searching the phrase "hook echo".
Chromacity/intensity

Well this is it! tell me what you think