A pair of cyclones are spinning like tops in the Pacific Ocean. Once these systems combine into one, they’re expected to bring torrential rain, flooding, high winds and general storminess to much of the Southwest.

Weather models simulating the storm’s arrival show copious moisture rushing onshore. The weather model below demonstrates impressive high clouds exploding over California as the storm arrives. The entire southwest region will feel the effects from this massive system.

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As the storm landfalls on the California Coast Friday, historic amounts of rain may fall along the CA coast as the high winds squeezes the moisture out of the sky. If you’re planning a trip to California this weekend, you should consider this forecast.

Impacts for Arizona:

• Rainfall beginning in Central Arizona late Friday night, continuing off and on through Sunday.
• Gusty winds across the state. Winds higher in Southern AZ.
• NWS Phoenix: “Possibility of localized flooding of washes and urban areas”