FORECAST: Breezy with temperatures climbing

Red Flag Warnings will continue for much of northern Arizona Monday and Tuesday, and big time heat is expected in the Valley by late next week.

Fire danger across Northern AZ continues, big heat later this week in the Valley

By: Justin Hobbs

PHOENIX — Strong winds and critically low humidity will keep fire danger high across northern Arizona into early next week.

Red Flag Warnings are in effect from Monday morning through Tuesday evening for northern and northwestern Arizona, including areas along and northeast of the Mogollon Rim and the White Mountains. Wind gusts could reach up to 45 mph, while relative humidity drops into the single digits — conditions that can quickly spread wildfires.

Officials urge extreme caution. A single spark can ignite a fast-moving fire. Drivers should not throw cigarettes from vehicles and should make sure nothing is dragging that could create sparks.

The winds are being driven by a low-pressure system passing well north of Arizona, which will not bring cooler temperatures or rain.

Instead, temperatures will climb through the week as high pressure builds.

In the Valley, Monday will begin in the mid- to upper 70s before reaching about 105 degrees in Phoenix by the afternoon.

As the ridge strengthens, temperatures are expected to rise further, with a potential first 110-degree day by Friday. Highs are forecast to remain above 110 through next weekend.

Heat risk will increase to the “major” category by Friday and last through the weekend. For much of the week, it will remain “moderate,” meaning a higher risk of heat-related illness, especially for those spending extended time outdoors.

Residents are encouraged to stay hydrated, take breaks, and seek cooler environments when possible.