Harvey Rapidly Strengthening in Gulf of Mexico
At 1000 AM CDT (1500 UTC), the center of Tropical Storm Harvey was located by an Air Force Reserve Hurricane Hunter aircraft near latitude 24.0 North, longitude 93.3 West. Harvey is moving toward the north-northwest near 10 mph (17 km/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 the Hurricane Hunter plane indicate that maximum sustained winds have increased to near 65 mph (100 km/h) with higher gusts. Rapid strengthening is forecast, and Harvey is expected to become a major hurricane before it reaches the middle Texas coast.
Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center.
The minimum central pressure based on reconnaissance data is 982 mb(29.00 inches).
Key Messages on Tropical Storm Harvey from National Hurricane Center at 10am cdt 8.24.17:
1. Harvey has intensified quickly this morning, and is now forecast to be a major hurricane at landfall, bringing life-threatening storm surge, rainfall, and wind hazards to portions of the Texas coast. Preparations to protect life and property should be completed by tonight, as tropical-storm-force winds will first arrive in the hurricane and storm surge warning areas on Friday.
2. A Storm Surge Warning is in effect for much of the Texas coast. Life-threatening storm surge flooding could reach heights of 6 to 10 feet above ground level at the coast between the north entrance of the Padre Island National Seashore and Sargent. For a depiction of areas at risk, see the Storm Surge Watch/Warning Graphic at hurricanes.gov.
3. Life-threatening flooding is expected across much of the Texas coast from heavy rainfall of 12 to 20 inches, with isolated amounts as high as 30 inches, from Friday through early next week. Please refer to products from your local National Weather Service office and the NOAA Weather Prediction Center for more information on the flooding hazard.
4. The Potential Storm Surge Flooding Map is available on the NHC website. This product depicts a reasonable worst-case scenario – the amount of inundation that has a 10 percent chance of being exceeded at each individual location. This map best represents the flooding potential in those locations within the watch and warning areas.
POSITIONS AND MAX WINDS
INIT 24/1500Z 24.0N 93.3W 55 KT 65 MPH
12H 25/0000Z 24.9N 94.2W 70 KT 80 MPH
24H 25/1200Z 26.0N 95.3W 90 KT 105 MPH
36H 26/0000Z 27.3N 96.3W 100 KT 115 MPH
48H 26/1200Z 28.3N 97.0W 95 KT 110 MPH…INLAND
72H 27/1200Z 29.0N 97.7W 40 KT 45 MPH…INLAND
96H 28/1200Z 28.5N 97.5W 35 KT 40 MPH…INLAND
120H 29/1200Z 28.5N 96.5W 30 KT 35 MPH…INLAND
More information at www.wkgc.org/weather