Dangerously hot weather expected to spread across the Southern Plains and Gulf Coast

Dangerous heat this week brings 100°+ heat index values

Heat Advisories in effect for at least 10 states as of late Tuesday. 

EXPERIMENTAL HEAT RISK MAP: Where will the heat be?

The NWS HeatRisk is an experimental color-numeric-based index that provides a forecast risk of heat-related impacts to occur over a 24-hour period. HeatRisk takes into consideration:

• How unusual the heat is for the time of the year
• The duration of the heat including both daytime and nighttime temperatures
• If those temperatures pose an elevated risk of heat-related impacts based on data from the CDC

Aug. 8-13 Forecast:

This index is supplementary to official NWS heat products and is meant to provide risk guidance for decision-makers and heat-sensitive populations who need to take action at levels that may be below current NWS heat product levels.