In Texas the summer heat

can be dangerous or even

deadly.

In recent years, excessive

heat has caused more

deaths  than all other

weather events,

including floods.

A heat wave is a

prolonged period of

excessive heat,often

combined with

excessive humidity.

Generally temperatures

are 10 degrees or more

above the average high

temperature for the

region during summer

months, last for a long

period of time and occur

with high humidity as well.

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Know the Difference

Excessive Heat Watch—

Conditions are favorable for

an excessive heat event to

meet or exceed local Excessive

Heat Warning criteria in the

next 24 to 72 hours.

 

Excessive Heat Warning—

Heat Index values are forecast

to meet or exceed locally

defined warning criteria

for at least 2 days

(daytime highs=105-110°

Fahrenheit).

 

Heat Advisory—

Heat Index values are

forecast to meet locally

defined advisory criteria

for 1 to 2 days

(daytime highs=100-105°

Fahrenheit).

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