Dangerous heat and humidity from the central U.S. to East Coast this weekend
Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend.
High and low forecast temperature values represent air temperature.
Water temperature forecast is experimental.
Last Update: 8:35 am AKDT Jul 23, 2016
Forecast Valid: 10am AKDT Jul 23, 2016-6pm AKDT Jul 29, 2016
- This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
- The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.