Summer Heat In Multiple Spots

A large dome of high pressure is expected to deliver summer heat with humidity in multiple sections of the country to start off the week. Excessive heat warnings and heat advisories are in effect across the south-central Plains, Mid to Lower Mississippi Valley and from the Mid-Atlantic into the Northeast. This includes the cities of New York, Philadelphia, Dallas, Oklahoma City and Kansas City. Read More >

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Wind Chill Chart

Cold Wind Chills:
Wind Chill Warning: (See a map of Wind Chill Warning thresholds)
Wind Chill Advisory: (See a map of Wind Chill Advisory thresholds)

heat index chart

Heat Advisory: (See a map of Heat Advisory Criteria)
Excessive Heat Warning: (See a map of Excessive Heat Warning Criteria)
Excessive Heat Watch: Possibility that Excessive Heat Warning Criteria may be met at longer ranges (12 to 48 hrs out).

For an outlook beyond 3-4 days, see the extended heat index guidance we get from the NWS's Hydrometeorological Prediction Center (HPC):
Maximum HEAT INDEX OUTLOOKS (for days 3-7) from the NWS Hydrometeorological Prediction Center (HPC) in DC.