![]() The warning is used for conditions posing a threat to life or property, while the advisory is used for less serious conditions that cause significant discomfort or inconvenience and if caution is not taken, could lead to a threat to life or property. These are used when an event is occurring, is imminent or has a very high probability of occurring. Excessive Heat Warning / Advisory: Issued when an excessive heat event is expected within the next 36 hours.A watch is used when the risk of an event has increased, but the timing and occurrence is still uncertain. Excessive Heat Watch: Issued when conditions are favorable for an excessive heat event in the next 12 to 48 hours.Excessive Heat Outlook: Issued when the potential exists for an excessive heat event in the next 3 to 7 days.See NOAA's National Weather Service Heat Index chart.Find more information about heat and heat hazards.The Heat Index takes the relative humidity into account, providing the "feels like" temperature. What to Do Before, During and After Extreme Heat.Air quality conditions may also deteriorate due to trapped pollutants, such as ozone from the atmosphere or carbon monoxide from vehicles.Extreme heat is generally defined as temperatures that hover 10 degrees or more above the average high temperature for the region and last for several weeks.Very common occurrence for the summer months of June through September, but can be recorded as early as April and late into November. ![]() Located near the urban Dallas / Fort Worth Metroplex, McKinney is at a greater risk from the effects of prolonged heat.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |