Hurricane Harvey Advisory Update from the State of Texas State Operation Center (SOC)
Hurricane Harvey Advisory Update from the State of Texas State Operation Center (SOC)
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Warning is in effect for Port Mansfield to High Island Texas
A Storm Surge Watch is in effect for South of Port Mansfield Texas to the Mouth of the Rio Grande North of San Luis Pass to High Island Texas
A Hurricane Warning is in effect for Port Mansfield to Matagorda Texas
A Tropical Storm Warning is in effect for North of Matagorda to High Island Texas South of Port Mansfield Texas to the Mouth of the Rio Grande
A Hurricane Watch is in effect for South of Port Mansfield Texas to the Mouth of the Rio Grande
A Tropical Storm Watch is in effect for South of the Mouth of the Rio Grande to Boca de Catan Mexico
A Storm Surge Warning has been extended northeast of San Luis Pass to High Island Texas
Where is Hurricane Harvey (As of 1:00 pm CST)?
Harvey is moving toward the north-northwest near 10 mph (17km/h). A turn toward the northwest is expected later today, and Harvey's forward speed is forecast to slow down during the next couple of days. On the forecast track, Harvey will approach the middle Texas coast on Friday and make landfall Friday night or early Saturday, and then stall near the middle Texas coast through the weekend.
Data from Air Force Reserve and NOAA Hurricane Hunter aircraft indicate that maximum sustained winds have increased to near 85 mph (140 km/h) with higher gusts. Additional rapid strengthening is forecast, and Harvey is expected to become a major hurricane by Friday before it reaches the middle Texas coast. Hurricane-force winds extend outward up to 25 miles (35 km) from the center, and tropical-storm-force winds extend outward up to 90 miles (150 km). Data from the NOAA Hurricane Hunter plane indicate that the minimum central pressure is 979 mb (28.91 inches).
Hazards Affecting Land
RAINFALL: Harvey is expected to produce total rain accumulations of12 to 20 inches and isolated maximum amounts of 30 inches over the middle and upper Texas coast through next Wednesday. During the same time period Harvey is expected to produce total rain accumulations of 5 to 12 inches in far south Texas and the Texas Hill Country to central Louisiana, with accumulations of less than 5 inches extending into other parts of Texas and the lower Mississippi Valley. Rainfall from Harvey may cause life-threatening flooding.
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 is expected to reach the following heights above ground if the peak surge occurs at the time of high tide:
- N Entrance Padre Island Natl Seashore to Sargent: 6 to 12 ft
- Sargent to Jamaica Beach: 5 to 8 ft
- Port Mansfield to N Entrance Padre Island Natl Seashore: 5 to 7 ft
- Jamaica Beach to High Island: 2 to 4 ft
- Mouth of the Rio Grande to Port Mansfield: 2 to 4 ft
- High Island to Morgan Cit: 1 to 3 ft
The deepest water will occur along the immediate coast near and to the northeast of the landfall location, where the surge will be accompanied by large and destructive 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 likely within the hurricane warning area late Friday or Friday night, with tropical storm conditions expected to first reach the coast in the hurricane warning area Friday.
SURF: Swells generated by Harvey are likely to affect the Texas, Louisiana, and northeast Mexico coasts by Friday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.
What You Need to Know
WIND: Hurricane conditions are likely within the hurricane warning area late Friday or Friday night, with tropical storm conditions expected to first reach the coast in the hurricane warning area Friday.
SURF: Swells generated by Harvey are likely to affect the Texas, Louisiana, and northeast Mexico coasts by Friday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.
What You Need to Know
- A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours 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 warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm- force winds, conditions that make outside preparations difficult or dangerous.
- A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours.
- A Storm Surge Watch means there is a possibility of life-threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours.
- A Hurricane Watch means that hurricane conditions are possible within the watch area.
- A Tropical Storm Watch means that tropical storm conditions are possible within the watch area.
For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside the United States, please monitor products issued by your national meteorological service.
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