Central Arizona MCS Eyes 80 MPH Gusts as It Drops into Scorching Lowlands — SevereWX

Central Arizona MCS Eyes 80 MPH Gusts as It Drops into Scorching Lowlands

A loosely organized mesoscale convective system (MCS) is sliding south-southwestward off Arizona's higher terrain toward lower elevations this evening. Packed with multicell and pulse storms, it's poised to interact with a brutally hot boundary layer—surface temps soaring above 110°F amid 50s°F dewpoints.

This setup screams evaporative cooling potential. SPC notes 1500-2000 J/kg DCAPE and wide 50-60°F T/Td spreads, fueling embedded downbursts. Expect gusts in the 65-80 mph range, with some possibly topping 75 mph. Haboobs—wall-like dust storms slashing visibility—are also in play, adding chaos for drivers and outdoor plans.

The MD covers portions of central Arizona, valid until around 8 PM MST (252345Z). Watch issuance odds sit at 60%, signaling SPC's confidence in the severe risk. Track storms via radar as they congeal and propagate.

Why it matters: In this heat, even 65 mph gusts can topple power lines, snap trees, and damage structures. Haboobs bring sudden zero-vis conditions on roads like I-10 or I-17.

Stay prepared: Monitor local NWS alerts (FGZ, PSR, TWC), secure outdoor items, avoid travel if dust hits, and have a NOAA weather radio handy. Safety first in Arizona's summer furnace.