12th July 2010 - Monday

High: 25.0
Low: 10.5
Rain:(33)
Snow:(30)
Days we didn't see any sun: (48)
Days swept snow from drive (0)
Days shovelled snow from drive (14)

It was a fairly overcast start to the day, but it was very warm and temperatures reached around +23. It started to get very windy at around 3pm and by around 5pm it had gone quite dark. It started to rain quite heavily and we had some thunder and lightning. With the wind and the rain, the temperature dropped dramatically to around +12 and it felt really quite cold. There were TV reports showing golf ball sized hail falling in Calgary, which did quite a lot of damage to cars and some buildings.

There is currently a severe thunderstorm warning in Calgary, but Okotoks has not been inncluded in the warnings.

MDT radar shows a strong thunderstorm just northwest of Strathmore moving eastward at 20 km/h. This storm can produce large hail and heavy downpours. Golf ball size hail has been reported with this storm. This storm will continue to produce large hail and heavy downpours.

This is a warning that severe thunderstorms are imminent or occurring in these regions. Remember that some severe thunderstorms produce tornadoes. Listen for updated warnings.

An unstable moist airmass combined with strong winds is capable of producing severe thunderstorms in Southern Alberta. These storms can give large hail and heavy downpours.