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Hurricane Delta Public Advisory Number 21A
2020-10-10 01:52:45| National Hurricane Center (Atlantic)
Issued at 700 PM CDT Fri Oct 09 2020 000 WTNT31 KNHC 092352 TCPAT1 BULLETIN Hurricane Delta Intermediate Advisory Number 21A NWS National Hurricane Center Miami FL AL262020 700 PM CDT Fri Oct 09 2020 ...DELTA JUST INLAND ALONG THE SOUTHWESTERN LOUISIANA COAST... ...HURRICANE CONDITIONS AND A LIFE-THREATENING STORM SURGE OCCURRING WITHIN THE WARNING AREA... SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...30.0N 93.0W ABOUT 25 MI...40 KM WSW OF JENNINGS LOUISIANA MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...971 MB...28.67 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Storm Surge Warning from High Island, Texas to Sabine Pass has been discontinued. The Tropical Storm Warning west of San Luis Pass, Texas has been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * East of Sabine Pass to the Mouth of the Pearl River including Calcasieu Lake, Vermilion Bay, and Lake Borgne A Hurricane Warning is in effect for... * High Island Texas to Morgan City Louisiana A Tropical Storm Warning is in effect for... * West of High Island to San Luis Pass, Texas * East of Morgan City Louisiana to the mouth of the Pearl River, including New Orleans * Lake Pontchartrain and Lake Maurepas 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. DISCUSSION AND OUTLOOK ---------------------- At 700 PM CDT (0000 UTC), the center of Hurricane Delta was located near latitude 30.0 North, longitude 93.0 West. Delta is moving toward the north-northeast near 14 mph (22 km/h), and this motion is expected to continue through Saturday morning. A motion toward the northeast is then expected through Sunday night. On the forecast track, the center of Delta should move across central and northeastern Louisiana tonight and Saturday morning. After that time, the system is forecast to move across northern Mississippi into the Tennessee Valley. Maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Rapid weakening is expected overnight and Saturday. Delta is forecast to weaken to a tropical storm tonight and to a tropical depression on Saturday. Hurricane-force winds extend outward up to 40 miles (65 km) from the center and tropical-storm-force winds extend outward up to 160 miles (260 km). The National Weather Service office at Lake Charles reported sustained winds of 64 mph (103 km/h) with gusts to 95 mph (153 km/h) at the airport. The estimated minimum central pressure is 971 mb (28.67 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Delta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT1.shtml. STORM SURGE: 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 Morgan City, LA to Port Fourchon, LA...4-6 ft Sabine Pass to Holly Beach, LA...2-4 ft Calcasieu Lake...2-4 ft Port Fourchon, LA to the Mouth of the Pearl River...2-4 ft Lake Borgne...2-4 ft Lake Pontchartrain and Lake Maurepas...1-3 ft Mouth of the Pearl River to the AL/FL border including Mobile Bay...1-3 ft Sabine Lake...1-3 ft Port O'Connor, TX to Sabine Pass including Galveston Bay...1-3 ft The deepest water will occur along the immediate coast near and to the east of the landfall location, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Hurricane conditions are occurring within the hurricane warning area, and should continue during the next few hours. Tropical storm conditions will continue within portions of the tropical storm warning areas through early Saturday. RAINFALL: Today through Saturday, Delta is expected to produce 5 to 10 inches of rain, with isolated maximum totals of 15 inches, from southwest into 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. As the remnants of Delta move farther inland, 1 to 3 inches of rain, with locally higher amounts, are expected in the Tennessee Valley and Mid Atlantic this weekend. There is a potential for 3 to 6 inches in the Southern Appalachians, which could lead to isolated flash, urban, and small stream flooding. TORNADOES: A few tornadoes are possible through tonight over the southern portions of Louisiana and Mississippi. SURF: Swells from Delta are affecting portions of the northern and western Gulf coast. These swells are likely to cause life- threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 1000 PM CDT. $$ Forecaster Pasch
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Summary for Hurricane Delta (AT1/AL262020)
2020-10-10 01:00:14| National Hurricane Center (Atlantic)
...DELTA JUST INLAND ALONG THE SOUTHWESTERN LOUISIANA COAST... ...HURRICANE CONDITIONS AND A LIFE-THREATENING STORM SURGE OCCURRING WITHIN THE WARNING AREA... As of 7:00 PM CDT Fri Oct 9 the center of Delta was located near 30.0, -93.0 with movement NNE at 14 mph. The minimum central pressure was 971 mb with maximum sustained winds of about 90 mph.
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Hurricane Delta Potential Storm Surge Flooding Map
2020-10-10 00:02:29| National Hurricane Center (Atlantic)
Potential Storm Surge Flooding Map last updated Fri, 09 Oct 2020 22:02:29 GMT
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Summary for Hurricane Delta (AT1/AL262020)
2020-10-09 23:57:13| National Hurricane Center (Atlantic)
...5 PM CDT POSITION UPDATE... ...EYEWALL OF DELTA MOVING ONSHORE OF THE SOUTHWESTERN COAST OF LOUISIANA... As of 5:00 PM CDT Fri Oct 9 the center of Delta was located near 29.5, -93.1 with movement NNE at 14 mph. The minimum central pressure was 968 mb with maximum sustained winds of about 100 mph.
Hurricane Delta Update Statement
2020-10-09 23:57:13| National Hurricane Center (Atlantic)
Issued at 500 PM CDT Fri Oct 09 2020 000 WTNT61 KNHC 092157 TCUAT1 Hurricane Delta Tropical Cyclone Update NWS National Hurricane Center Miami FL AL262020 500 PM CDT Fri Oct 09 2020 ...5 PM CDT POSITION UPDATE... ...EYEWALL OF DELTA MOVING ONSHORE OF THE SOUTHWESTERN COAST OF LOUISIANA... A NOAA National Ocean Service water level gauge at Freshwater Canal Locks, Louisiana, recently reported storm surge inundation of over 7 feet above ground level. A WeatherFlow observing site near Cameron, Louisiana, recently reported a sustained wind of 58 mph (93 km/h) and a wind gust to 78 mph (125 km/h) The Texas Coastal Ocean Observation Network station at Texas Point recently reported sustained winds of 65 mph (105 km/h) and a wind gust of 74 mph (119 km/h). A wind gust to 71 mph (114 km/h) has been reported at the Jack Brooks Regional Airport near Port Arthur, Texas, within the past couple of hours. SUMMARY OF 500 PM CDT...2200 UTC...INFORMATION ---------------------------------------------- LOCATION...29.5N 93.1W ABOUT 25 MI...40 KM SSE OF CAMERON LOUISIANA MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...968 MB...28.58 INCHES $$ Forecaster Brown
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