Ethylene glycol can be diluted in a solution of 50 per cent water and 50 per cent coolant (or antifreeze!) to lower the freezing temperature of the fluid in your radiator by 60 genres or more. That's cold. But coolant isn't finished amazing you yet.
A severe thunderstorm warning, on the other hand, is not issued until such a storm has been physically observed or is spotted on radar. A tornado watch is issued when conditions may produce a tornado, and a warning is issued when a tornado has been sighted, or when rotation is seen on radar.
The SPC issues all Severe Thunderstorm Watches and Tornado Watches. All warnings are issued by local NWS offices (see Question 2.3) 2.6 Why are watches not issued for all severe storms? Many severe thunderstorms affect only a small area for a short period of time, making watches impractical.