Update on Hurricane Isaac

Projected Path

Hurricane Isaac made its first U.S. landfall along the extreme southeastern Louisiana coast at 6:45 p.m. Tuesday evening, then continued to scrape along the immediate coast.  Isaac will continue to move very slowly near the Louisiana coast Wednesday. Since Isaac is moving at a snail’s pace, the hurricane will pound the northern Gulf Coast with storm surge flooding, heavy rainfall, strong winds and possible isolated tornadoes through Wednesday.


Hurricane warnings continue for portions of the northern Gulf Coast from east of Morgan City, La. to the Mississippi/Alabama border. This includes New Orleans and Biloxi.  Hurricane watches are posted as far west as Intracoastal City, La.  In addition, a number of tropical storm warnings are in effect. For detailed maps of current watches and warnings, scroll down on this page.


You can find a detailed look at the Gulf Coast storm surge, wind and flooding threats by clicking on this link and you can ensure you know which friends may be in harms way through our My Friends Weather tool.


(MORE: Live updates and analysis on Isaac)

A storm surge of 10.9 feet above normal tide levels was reported at Shell Beach, La. southeast of New Orleans, 7.5 feet above normal at Waveland, Miss., and just over 4 feet above normal at Pascagoula, Miss.

(MAP:  Latest water rise values)

– Southeast Louisiana, Miss. coasts: 6-12 feet

– Alabama coast:  3-6 feet

– South-central Louisiana:  3-6 feet

Florida Panhandle and Apalachee Bay: 2-4 feet

(MAP: Storm surge forecast)

Isaac will only slowly move inland, resulting in widespread rainfall amounts of 6 to 12 inches in much of Louisiana, far southwest Alabama, southern Mississippi and southern Arkansas. Near the immediate Gulf Coast, storm totals of 12 to 20 inches are possible. As a result, flooding is likely.



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