Wednesday, August 29, 2012

The Isaac Deluge

Hurricane Isaac is moving very slowly through Louisiana, extending what is surely a long period of suffering for residents of New Orleans, the Mississippi Delta, and environs.

Source: MesoWest

The New Orleans International Airport saw about a 12 hour period overnight with sustained winds of 35 mph and gusts in excess of 55 mph, reaching up to 70 mph at times. 

Source: MesoWest
Yeah, that's not hurricane force, but it isn't pleasant either, especially given the heavy rain and potential for flooding.

The Hydrologic Prediction Center forecast calls for over 10 inches of rain to fall across much of southeast Louisiana through Monday.  That's in addition to what fell prior to this morning, and much of it will come over the next 24 hours, although there will be rain at times even after Isaac moves inland.

Source: HPC
To put that into perspective, the average annual precipitation at the Salt Lake City Airport is 15.7".  There will be places in Louisiana that probably will get that much this week.  The New Orleans International Airport reports 6.20 inches of rain since noon yesterday.

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