A Look at Tropical Storm Harvey Aug 24 noon update

Good afternoon, with our weather quiet right now, we want to turn to the tropics and a storm that could impact the Texas coast in the next day or two.  Tropical Storm Harvey is currently sitting in the Gulf of Mexico and is rapidly strengthening.  Here is a look at the watches and warnings associated with Harvey…

A Storm Surge Warning is in effect for…
* Port Mansfield to San Luis Pass 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

At the 11 am advisory, Harvey was located 365 miles southeast of Corpus Christi and max winds of 65 mph.  Rapid strengthening is forecast and not only Harvey will become a hurricane soon, it could become a major category 3 hurricane by the time it approaches the coast.  A look at the satellite picture will show why rapid strengthening is forecast.  Harvey right now is looking like a classic tropical system with good outflow in all quadrants and is sitting in a low shear environment and water temperatures in the mid to upper 80s.  As Harvey gets closer to the coast, seas will increase rapidly and conditions will deteriorate rapidly, so I urge anyone who lives along the Texas coast or if you have family that lives along the Texas coast to make preparations for this dangerous storm NOW as it is forecast to make landfall either late Friday night or early Saturday morning.  The following is information about the storm surge and surge levels from the National Hurricane Center…

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 10 ft
Sargent to San Luis Pass…5 to 7 ft
Port Mansfield to N Entrance Padre Island Natl Seashore…5 to 7 ft
San Luis Pass to High Island…2 to 4 ft
Mouth of the Rio Grande to Port Mansfield…2 to 4 ft
High Island to Morgan City…1 to 3 ft

As Harvey makes landfall, it is expected to stall as the steering currents will weaken.  Rainfall amounts in excess of 15 inches, with amounts up to 30 inches will be possible along the Texas coast.  Life-threatening flash flooding will be possible.  The following graphics will help you in making hurricane preparations…

To end this blog, the National Hurricane Center have the following key points on Tropical Storm Harvey and this can not be stressed enough, NOW is the time if you live on the Texas coast to prepare for this storm.

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.

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