…DELTA EXPECTED TO BRING HURRICANE CONDITIONS AND A LIFE-THREATENING STORM SURGE TO PORTIONS OF THE NORTHERN GULF COAST
ON FRIDAY…

– A Storm Surge Warning continues for High Island. TX, to Ocean Springs, MS, incl. Calcasieu Lake, Vermilion Bay, Lake Pontchartrain, Lake Maurepas, and Lake Borgne
– A Hurricane Warning continues for High Island, TX, to Morgan City, LA.
– A Tropical Storm Warning continues from west of High Island to Sargent Pass, TX. and from east of Morgan City, LA to the mouth of the Pearl River, including New Orleans, Lake Pontchartrain and Lake Maurepas.
– A Tropical Storm Watch continues from east of the mouth of the Pearl River to Bay St. Louis. MS.

There is a risk of a few tornadoes beginning late tonight and continuing through Friday over southern portions of Louisiana and Mississippi. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office – www.weather.gov

At 7 p.m. CDT, the center of Hurricane Delta was located over the western Gulf of Mexico about 310 miles (500 km) south of Cameron, Louisiana. Delta is moving toward the north-northwest near 12 mph (19 km/h). On the forecast track, the center of Delta will move over the northwestern Gulf of Mexico on Friday, and then move inland within the hurricane warning area Friday afternoon or Friday night.

Maximum sustained winds are near 115 mph (185 km/h) with higher gusts – a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 160 miles (260 km). NOAA buoy 42002, just to the north of Delta’s center, recently measured a sustained wind of 54 mph (86 km/h) and a wind gust to 65 mph (104 km/h). Additional strengthening is possible tonight. Some weakening is anticipated as Delta approaches the northern Gulf coast on Friday, with rapid weakening expected after the center moves inland.

The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide…
– Rockefeller Wildlife Refuge, LA to Morgan City, LA including
Vermilion Bay…7-11 ft
– Holly Beach, LA to Rockefeller Wildlife Refuge, LA…5-8 ft
– Sabine Pass to Holly Beach, LA…4-7 ft
– Morgan City, LA to Port Fourchon, LA…4-7 ft
– Port Fourchon, LA to the Mouth of the Mississippi River…3-5 ft
– Calcasieu Lake…3-5 ft
– High Island, TX to Sabine Pass…2-4 ft
– Mouth of the Mississippi River to Ocean Springs, MS…2-4 ft
– Lake Borgne, Lake Pontchartrain, & Lake Maurepas…2-4 ft
– Ocean Springs, MS to the AL/FL state line including Mobile Bay…1-3 ft
– Sabine Lake…1-3 ft
– Port O’Connor, TX to High Island, TX including Galveston Bay…1-3 ft

Friday through Saturday, Delta is expected to produce 5 to 10 inches of rain, with isolated maximum totals of 15 inches, from southwest into south-central Louisiana. These rainfall amounts will lead to significant flash, urban, small stream flooding, along with minor to major river flooding. For extreme east Texas into northern Louisiana, southern Arkansas and western Mississippi, Delta is expected to produce 3 to 6 inches of rain, with isolated maximum totals of 10 inches. These rainfall amounts will lead to flash, urban, small stream and isolated minor river flooding.

The next complete advisory will be issued by NHC at 10 p.m. CDT – www.hurricanes.gov