Due to the extreme heat we are cancelling training tonight and Thursday evening. After going over some very good information from the Mayo Clinic (Thank You Lakshmi!!), I strongly feel we need to cancel. 
Of course we can train in the heat, but it should only be done after a period of acclimation, of a couple of weeks or so. This heat wave came on us quickly and most of us simply aren’t ready to go hard in the heat yet. 
Please read these articles on Heat Stroke and Heat Exhaustion:
Heatstroke – Symptoms and causes – Mayo Clinic
Heat exhaustion – Symptoms and causes – Mayo Clinic

In a nutshell they point out that exercise in extreme heat can be quite dangerous but with proper precautions it can be done safely. Some precautions are:

• Wear loose fitting, lightweight clothing. 
• Protect against sunburn. Wear a wide-brimmed hat and sunglasses and use a broad-spectrum sunscreen with an SPF of at least 15. 
• Drink plenty of fluids. 
• Take extra precautions with certain medications. 
• Take it easy during the hottest parts of the day. 
• Get acclimated – 5-10 hot workouts
• Be cautious if you’re at increased risk.

And some signs and symptoms that you are developing or have heat exhaustion, or the more serious heat stroke, are as follows:

• High body temperature. (40 C or higher)
• Altered mental state or behavior. 
• Alteration in sweating. 
• Nausea and vomiting. 
• Flushed skin. 
• Rapid breathing. 
• Racing heart rate. 
• Headache. Your head may throb.

To get the details, read the two articles from the Mayo Clinic. Again, thank you Lakshmi for forwarding these to us!
Stay cool, stay hydrated, train in the coolest parts of the day (early mornings) and avoid the hottest part of the day.

Saturday should be cooler, so as of now training is on for Saturday.