Mon Sep 04 2017 10:32 AM
Re: Irma Recon Begins in Earnest. Also Watching SW Gulf Low and E Atl Wave

Recon this morning has found Irma with pressures about 10 to 15mb lower than last night's mission. Also that yet another outer eyewall is forming. The frequency with which Irma undergoes eyewall replacement cycles will likely tend to stair-step her intensity, but probably not so much as to preclude a general increase, over time, and Irma will likely be at least a Cat 4 within 36 hours, which is the official NHC forecast.

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