I am surprised that the heat warning didn't address a very important topic regarding staying hydrated: that is drinking coffee is the worst thing you can do in a heat wave. Coffee is known to cause dehydration in the body, especially when it is so hot out. Even when it is those iced mochas, it is the properties in the coffee (caffeine, maybe???) that isn't good for a body that is needing to stay properly hydrated.
I remember watching the news a year, or so ago, addressing this very issue. In a nutshell, nothing really replaces good, old-fashioned H-2O to stay hydrated in this extreme heat.
- Bill