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Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >


The NWS San Juan provides services and products to support the spectrum of operational fire weather user requests. The top priority in product content is user and public safety, with an emphasis on preparing fire fighters and fire managers with weather information for tactical decision support.

New Fire Weather Zones (Effective August 4th, 2015)

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