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Hurricane Ida Graphics
2021-08-29 16:54:54| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sun, 29 Aug 2021 14:54:54 GMT Wind Speed Probabilities last updated Sun, 29 Aug 2021 15:22:55 GMT
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Hurricane Ida Storm Surge Watch/Warning Map
2021-08-29 16:54:42| National Hurricane Center (Atlantic)
Storm Surge Watch/Warning Map last updated Sun, 29 Aug 2021 14:54:42 GMT
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Hurricane Ida Public Advisory Number 14
2021-08-29 16:53:05| National Hurricane Center (Atlantic)
Issued at 1000 AM CDT Sun Aug 29 2021 000 WTNT34 KNHC 291452 TCPAT4 BULLETIN Hurricane Ida Advisory Number 14 NWS National Hurricane Center Miami FL AL092021 1000 AM CDT Sun Aug 29 2021 ...EYE OF EXTREMELY DANGEROUS CATEGORY 4 HURRICANE IDA NEARING THE SOUTHEASTERN COAST OF LOUISIANA... ...CATASTROPHIC STORM SURGE AND HURRICANE-FORCE WINDS MOVING ONSHORE... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...28.8N 90.0W ABOUT 60 MI...95 KM WSW OF THE MOUTH OF THE MISSISSIPPI RIVER ABOUT 85 MI...135 KM S OF NEW ORLEANS LOUISIANA MAXIMUM SUSTAINED WINDS...150 MPH...240 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...933 MB...27.55 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Storm Surge Warning west of Intracoastal City, Louisiana, has been discontinued. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Warning is in effect for... * Intracoastal City Louisiana to the Alabama/Florida border * Vermilion Bay, Lake Borgne, Lake Pontchartrain, Lake Maurepas, and Mobile Bay A Hurricane Warning is in effect for... * Intracoastal City Louisiana to the Mouth of the Pearl River * Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans A Tropical Storm Warning is in effect for... * Cameron Louisiana to west of Intracoastal City Louisiana * Mouth of the Pearl River to the Alabama/Florida border A Storm Surge Warning means there is a danger of life-threatening inundation from rising water moving inland from the coastline in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. 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 1000 AM CDT (1500 UTC), the eye of Hurricane Ida was located by reconnaissance aircraft and NWS Doppler radar near latitude 28.8 North, longitude 90.0 West. Ida is moving toward the northwest near 13 mph (20 km/h). A slightly slower northwestward motion should continue through this evening. A turn toward the north should occur by Monday morning, followed by a slightly faster northeastward motion by Monday night and Tuesday. On the forecast track, the center of Ida will make landfall along the coast of southeastern Louisiana within the hurricane warning area within the next few hours. Ida is then forecast to move well inland over portions of Louisiana and western Mississippi Monday and Monday night, and move across the Tennessee Valley on Tuesday. Reports from NOAA and Air Force Reserve Hurricane Hunter aircraft indicated that the maximum sustained winds are near 150 mph (240 km/h) with higher gusts. Ida is an extremely dangerous category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some slight additional strengthening is still possible before Ida moves onshore along the Louisiana coast. Rapid weakening is expected after landfall. Hurricane-force winds extend outward up to 50 miles (85 km) from the center and tropical-storm-force winds extend outward up to 150 miles (240 km). An elevated NOAA C-MAN station at Southwest Pass recently reported a sustained wind of 105 mph (169 km/h) and a wind gust of 121 mph (194 km/h). A station in Shell Beach, Louisiana, recently reported a sustained wind of 44 mph (70 km/h) and a gust of 52 mph (83 km/h). A NOAA National Ocean Service tide gauge in Shell Beach, Louisiana, recently reported a water level of 5.6 feet above mean higher high water, which is an approximation of inundation in that area. The latest minimum central pressure reported by an Air Force Reserve reconnaissance aircraft is 933 mb (27.55 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Ida can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at hurricanes.gov/graphics_at4.shtml?key_messages. 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... Port Fourchon, LA to Mouth of the Mississippi River...12-16 ft Morgan City, LA to Port Fourchon, LA...8-12 ft Mouth of the Mississippi River to Bay St. Louis, MS including Lake Borgne...8-12 ft Bay St. Louis, MS to Ocean Springs, MS...6-9 ft Burns Point, LA to Morgan City, LA...5-8 ft Lake Pontchartrain...5-8 ft Ocean Springs, MS to MS/AL border...4-7 ft Lake Maurepas...4-6 ft East of Intracoastal City, LA to Burns Point, LA including Vermilion Bay...3-5 ft MS/AL border to AL/FL border including Mobile Bay...3-5 ft Rockefeller Wildlife Refuge, LA to Intracoastal City, LA...1-3 ft AL/FL border to Okaloosa/Walton County Line including Pensacola Bay...1-3 ft Overtopping of local levees outside of the Hurricane and Storm Damage Risk Reduction System is possible where local inundation values may be higher than those shown above. 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: Catastrophic wind damage is likely where the core of Ida moves onshore along the southeast coast of Louisiana in the next few hours. Hurricane conditions will spread inland within the Hurricane Warning area over southeastern Louisiana through tonight. Tropical storm conditions will also spread inland over portions of Louisiana and Mississippi tonight and Monday. RAINFALL: Heavy rainfall from Ida will continue to impact the southeast Louisiana coast this morning, spreading northeast into the Lower Mississippi Valley later today into Monday. Total rainfall accumulations of 10 to 18 inches with isolated maximum amounts of 24 inches are possible across southeast Louisiana into far southern Mississippi through Monday. This is likely to result in life-threatening flash and urban flooding and significant riverine flooding impacts. Ida is forecast to turn to the northeast early Monday and track across the Middle Tennessee Valley and Upper Ohio Valley through Wednesday, producing the following rainfall totals: Coastal Alabama to the far western Florida panhandle: 5 to 10 inches with isolated maximum amounts of 15 inches, today through Tuesday morning. Central Mississippi: 4 to 8 inches with isolated maximum amounts of 12 inches, tonight through Monday night. Middle Tennessee Valley, Upper Ohio Valley, Central Appalachians into the Mid-Atlantic: 3 to 6 inches with isolated higher amounts, Tuesday into Wednesday. These rainfall totals will result in considerable flash and riverine flooding. TORNADOES: Tornadoes will be most likely through Monday over southeast Louisiana, southern Mississippi, southwest Alabama, and the western Florida Panhandle. A few tornadoes are also possible farther north across much of Mississippi and Alabama on Monday. SURF: Swells will affect the northern Gulf coast through early Monday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 100 PM CDT. Next complete advisory at 400 PM CDT. $$ Forecaster Brown
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Hurricane Ida Wind Speed Probabilities Number 14
2021-08-29 16:53:05| National Hurricane Center (Atlantic)
Issued at 1500 UTC SUN AUG 29 2021 000 FONT14 KNHC 291452 PWSAT4 HURRICANE IDA WIND SPEED PROBABILITIES NUMBER 14 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092021 1500 UTC SUN AUG 29 2021 AT 1500Z THE CENTER OF HURRICANE IDA WAS LOCATED NEAR LATITUDE 28.8 NORTH...LONGITUDE 90.0 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 130 KTS...150 MPH...240 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 12Z SUN AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 12Z SUN 00Z MON 12Z MON 00Z TUE 12Z TUE 12Z WED 12Z THU PERIODS TO TO TO TO TO TO TO 00Z MON 12Z MON 00Z TUE 12Z TUE 12Z WED 12Z THU 12Z FRI FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT YARMOUTH NS 34 X X( X) X( X) X( X) X( X) X( X) 4( 4) HYANNIS MA 34 X X( X) X( X) X( X) X( X) 1( 1) 2( 3) NANTUCKET MA 34 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) PROVIDENCE RI 34 X X( X) X( X) X( X) X( X) 1( 1) 3( 4) BRIDGEPORT CT 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) MONTAUK POINT 34 X X( X) X( X) X( X) X( X) 2( 2) 2( 4) ISLIP NY 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) NYC JFK AIRPRT 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) NEWARK NJ 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) ANNAPOLIS MD 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) CAPE HENLOPEN 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) OCEAN CITY MD 34 X X( X) X( X) X( X) X( X) 3( 3) X( 3) WALLOPS CDA 34 X X( X) X( X) X( X) X( X) 2( 2) 1( 3) PANAMA CITY FL 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) DESTIN EXEC AP 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) BIRMINGHAM AL 34 1 3( 4) X( 4) 2( 6) X( 6) X( 6) X( 6) MONTGOMERY AL 34 2 1( 3) 1( 4) X( 4) X( 4) X( 4) X( 4) WHITING FLD FL 34 2 2( 4) 1( 5) X( 5) X( 5) X( 5) X( 5) PENSACOLA FL 34 3 1( 4) 1( 5) X( 5) X( 5) X( 5) X( 5) GFMX 290N 870W 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) MOBILE AL 34 16 5(21) X(21) X(21) X(21) X(21) X(21) GULFPORT MS 34 92 1(93) X(93) X(93) X(93) X(93) X(93) GULFPORT MS 50 7 1( 8) X( 8) X( 8) X( 8) X( 8) X( 8) GULFPORT MS 64 1 1( 2) X( 2) X( 2) X( 2) X( 2) X( 2) STENNIS MS 34 99 X(99) X(99) X(99) X(99) X(99) X(99) STENNIS MS 50 43 2(45) X(45) X(45) X(45) X(45) X(45) STENNIS MS 64 8 1( 9) X( 9) X( 9) X( 9) X( 9) X( 9) BURAS LA 34 99 X(99) X(99) X(99) X(99) X(99) X(99) BURAS LA 50 99 X(99) X(99) X(99) X(99) X(99) X(99) BURAS LA 64 84 X(84) X(84) X(84) X(84) X(84) X(84) GFMX 280N 890W 34 99 X(99) X(99) X(99) X(99) X(99) X(99) GFMX 280N 890W 50 99 X(99) X(99) X(99) X(99) X(99) X(99) JACKSON MS 34 12 51(63) 8(71) X(71) X(71) X(71) X(71) JACKSON MS 50 1 9(10) 6(16) X(16) X(16) X(16) X(16) JACKSON MS 64 X 1( 1) 1( 2) X( 2) X( 2) X( 2) X( 2) NEW ORLEANS LA 34 99 X(99) X(99) X(99) X(99) X(99) X(99) NEW ORLEANS LA 50 97 1(98) X(98) X(98) X(98) X(98) X(98) NEW ORLEANS LA 64 85 2(87) X(87) X(87) X(87) X(87) X(87) GFMX 280N 910W 34 18 2(20) X(20) X(20) X(20) X(20) X(20) BATON ROUGE LA 34 99 1(99) X(99) X(99) X(99) X(99) X(99) BATON ROUGE LA 50 79 11(90) X(90) X(90) X(90) X(90) X(90) BATON ROUGE LA 64 38 22(60) 1(61) X(61) X(61) X(61) X(61) MORGAN CITY LA 34 99 X(99) X(99) X(99) X(99) X(99) X(99) MORGAN CITY LA 50 82 1(83) X(83) X(83) X(83) X(83) X(83) MORGAN CITY LA 64 35 1(36) X(36) X(36) X(36) X(36) X(36) ALEXANDRIA LA 34 19 26(45) X(45) X(45) X(45) X(45) X(45) ALEXANDRIA LA 50 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) LAFAYETTE LA 34 83 3(86) X(86) X(86) X(86) X(86) X(86) LAFAYETTE LA 50 15 3(18) X(18) X(18) X(18) X(18) X(18) LAFAYETTE LA 64 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) NEW IBERIA LA 34 88 2(90) X(90) X(90) X(90) X(90) X(90) NEW IBERIA LA 50 22 2(24) X(24) X(24) X(24) X(24) X(24) NEW IBERIA LA 64 4 1( 5) X( 5) X( 5) X( 5) X( 5) X( 5) GFMX 280N 930W 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) SHREVEPORT LA 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) FORT POLK LA 34 4 6(10) X(10) X(10) X(10) X(10) X(10) LAKE CHARLES 34 6 3( 9) 1(10) X(10) X(10) X(10) X(10) CAMERON LA 34 5 2( 7) X( 7) X( 7) X( 7) X( 7) X( 7) JASPER TX 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) KOUNTZE TX 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) PORT ARTHUR TX 34 2 2( 4) X( 4) X( 4) X( 4) X( 4) X( 4) GALVESTON TX 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) HOUSTON TX 34 1 2( 3) X( 3) X( 3) X( 3) X( 3) X( 3) HIGH ISLAND TX 34 2 1( 3) 1( 4) X( 4) X( 4) X( 4) X( 4) $$ FORECASTER BROWN
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Hurricane Ida Forecast Advisory Number 14
2021-08-29 16:52:33| National Hurricane Center (Atlantic)
Issued at 1500 UTC SUN AUG 29 2021 698 WTNT24 KNHC 291452 TCMAT4 HURRICANE IDA FORECAST/ADVISORY NUMBER 14 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092021 1500 UTC SUN AUG 29 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE STORM SURGE WARNING WEST OF INTRACOASTAL CITY LOUISIANA HAS BEEN DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A STORM SURGE WARNING IS IN EFFECT FOR... * INTRACOASTAL CITY LOUISIANA TO THE ALABAMA/FLORIDA BORDER * VERMILION BAY...LAKE BORGNE...LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND MOBILE BAY A HURRICANE WARNING IS IN EFFECT FOR... * INTRACOASTAL CITY LOUISIANA TO THE MOUTH OF THE PEARL RIVER * LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND METROPOLITAN NEW ORLEANS A TROPICAL STORM WARNING IS IN EFFECT FOR... * CAMERON LOUISIANA TO WEST OF INTRACOASTAL CITY LOUISIANA * MOUTH OF THE PEARL RIVER TO THE ALABAMA/FLORIDA BORDER A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING INUNDATION FROM RISING WATER MOVING INLAND FROM THE COASTLINE IN THE INDICATED LOCATIONS. FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT HURRICANES.GOV. THIS IS A LIFE-THREATENING SITUATION. PERSONS LOCATED WITHIN THESE AREAS SHOULD TAKE ALL NECESSARY ACTIONS TO PROTECT LIFE AND PROPERTY FROM RISING WATER AND THE POTENTIAL FOR OTHER DANGEROUS CONDITIONS. PROMPTLY FOLLOW EVACUATION AND OTHER INSTRUCTIONS FROM LOCAL OFFICIALS. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. HURRICANE CENTER LOCATED NEAR 28.8N 90.0W AT 29/1500Z POSITION ACCURATE WITHIN 10 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 320 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 933 MB MAX SUSTAINED WINDS 130 KT WITH GUSTS TO 160 KT. 64 KT....... 45NE 35SE 20SW 30NW. 50 KT....... 70NE 60SE 40SW 60NW. 34 KT.......130NE 110SE 80SW 110NW. 12 FT SEAS..180NE 150SE 150SW 0NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 28.8N 90.0W AT 29/1500Z AT 29/1200Z CENTER WAS LOCATED NEAR 28.5N 89.6W FORECAST VALID 30/0000Z 30.0N 90.8W...INLAND MAX WIND 90 KT...GUSTS 110 KT. 64 KT... 40NE 30SE 15SW 25NW. 50 KT... 60NE 50SE 40SW 40NW. 34 KT...120NE 110SE 80SW 80NW. FORECAST VALID 30/1200Z 31.6N 91.0W...INLAND MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 30NE 20SE 0SW 0NW. 34 KT... 80NE 90SE 50SW 50NW. FORECAST VALID 31/0000Z 33.2N 90.3W...INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 31/1200Z 34.9N 88.5W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 01/0000Z 36.4N 85.9W...INLAND MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 01/1200Z 37.8N 82.5W...POST-TROP/INLAND MAX WIND 20 KT...GUSTS 30 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 02/1200Z 40.5N 74.2W...POST-TROP/EXTRATROP MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 03/1200Z 43.5N 67.0W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 28.8N 90.0W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 29/1800Z NEXT ADVISORY AT 29/2100Z $$ FORECASTER BROWN
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