Warning!!!High Heat and Humidity ..... Watch - Severe thunderstorm
Weather conditions for these regions are favourable for the development of severe thunderstorms. Some of these storms could produce large hail - damaging winds - heavy rain and intense lightning. Persons in these regions should be on the lookout for these weather conditions and listen for subsequent watches and particularly warnings which will be issued if severe weather threatens. This watch is in effect from 4:40 AM to 10:00 PM EDT.
The hot and humid air mass blanketing Southern Quebec is responsible
for a heat wave that will continue today. Highs will exceed the
30-degree mark and humidity levels are very high. Humidex values will
reach 40 this afternoon.
A cold front from Northwestern Quebec will slide toward Southern Quebec this evening; severe thunderstorms could develop ahead of the
front.
Thursday, behind the cold front, conditions will remain warm, but
will be a little more comfortable with humidex values of 35. However,
on Friday, southwesterly winds are expected to herald the return of
hot and humid conditions in Southern Quebec.
During this period, people most vulnerable to health problems related
to the heat are the elderly, people suffering from a chronic disease
(eg, respiratory ailments or heart disease), people suffering from
mental health problems and children 4 years of age and under.
Exposure to these conditions could also cause discomfort, such as
muscle cramps, exhaustion and heatstroke.
In order to better withstand the heat, we suggest these measures:
stay inside with air conditioning or seek shady areas, drink plenty
of water and limit physical activity.
If you are concerned for your health or need more information, dial
811 to contact info-health services in your area.
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