The combination of upwelling and an eyewall replacement cycle has resulted in significant weakening of Blanca during the past 18 hours or so. The eye is not as clear as it was yesterday, and the deep convection is no longer symmetric around what is left of the eye. However, as soon as Blanca moves out of the area where the upwelling has occurred in 12 to 24 hours, another round of strengthening is anticipated, but not as much as indicated yesterday. Beyond 48 hours, increasing shear and cool waters should induce gradual weakening as Blanca approaches the Baja California peninsula. This image was taken by GOES West at 1500Z on June 4, 2015.
NOAA
2015-06-04
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