Harvey Marching Across the Gulf Today

Very dangerous situation for TX and perhaps even LA! Hurricane intensity appears imminent for Harvey (60 mph at 7 am CDT and just found to have complete eyewall structure). It is primed for rapid intensification thanks to light shear, warm waters, and now a stable inner core structure. Look how it was now 24 hrs ago compared to now! It looked much the same last night compared to 24 hrs ago!

Oceanic Heat Content (Kilojoules)

This system will make landfall as a hurricane and an elevated risk exists of a major hurricane landfall. I’ll defer to the NHC for that as their updated forecast will be out very soon…2-4 ft of rain based on consistent model predictions and dangerous storm surge (increasing with increasing category) are a certainty. Be ready to evacuate and rush preparations to completion now!

Edit at 10:25 am:

Tropical Storm #Harvey is now forecast to become a major hurricane by landfall by the National Hurricane Center. At least at Category 3. It’s been 4322 days since Category 3 winds have impacted the US (Wilma in Florida) and 4352 days for the state of Texas (Rita). So destructive wind and saltwater coastal flooding is likely in addition to catastrophic freshwater flooding.


Author: Meteorologist Nick Humphrey

Meteorologist and geoscientist in Lincoln, NE. Seattle, WA native. Love weather, storm chasing/photography and planetary science.

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