A National Weather Service (NWS) moderate heat alert expanded to five new states in the south and south-eastern United States between Wednesday and Saturday, according to maps published by the ...

Most avid gardeners know the USDA Plant Hardiness Zone Map, based on the average annual extreme minimum temperature, changed this past January, adding two new zones: 12 and 13, which mostly apply ...

One way the federal weather agency tracks heat danger is with its interactive HeatRisk map. It categorizes heat-related dangers into five risk levels: none, minor, moderate, major and extreme.

The AHS Plant Heat Zone Map identifies 12 zones, indicating regions where plants are subjected to high temperatures that could impact their growth, survival, and flowering times. Understanding ...

Local gardeners can check out at least two other zone maps. The American Horticultural Society (AHS) Heat Zone Map provides the annual average number of days in which the temperature is at least ...

PORTLAND, Ore. (KATU) — A heat map project looked at Multnomah, Washington and Clackamas counties and highlighted the problem areas when it comes to the heat. Places in the region that have a ...

The highest NWS heat warning is "extreme," shown on the map by the color purple, which is only in place for a section of southern Texas on Saturday. According to the agency, "this level of rare ...