Deepening Arizona Cumulus Towers Fuel 80 MPH Desert Wind Threat — SevereWX
Thunderstorms are intensifying across parts of southern and central Arizona this afternoon, setting the stage for isolated severe wind gusts up to 80 mph as they spill off higher terrain into lower deserts.
As of late afternoon, visible satellite imagery shows deepening cumulus fields over southeast Arizona, alongside ongoing storms along the Mogollon Rim. Steep midlevel lapse rates and rich midlevel moisture are boosting MLCAPE to near 1000 J/kg, priming further destabilization and new storm development over elevated areas.
Midlevel easterly flow at 20-30 knots will steer these storms westward into the deserts through evening. While activity remains isolated, any organized clusters could pack damaging straight-line winds reaching severe limits of 65-80 mph.
The Storm Prediction Center has flagged a 60% probability of issuing a severe thunderstorm watch within the next 1-2 hours, covering this evolving setup valid until around 9 PM MST.
Key Threats:
- Isolated wind gusts to 80 mph
- Most probable peaks: 65-80 mph
- Focus: Southern/central Arizona deserts
Stay weather-aware if you're in the region—monsoon patterns can deliver quick-hitting wind damage. Prepare now: Secure loose outdoor objects, avoid flooded washes, and monitor local updates from NWS Tucson and Phoenix. Have a severe weather plan ready.