UPDATE: 9 p.m. - Harvey is now a tropical storm with winds of 60 mph. The center of the storm is 70 miles east-south east of San Antonio, TX.

It is drifting east-northeast at 2 mph.  It will continue to produce rainfall, torrential downpours at times.  Flooding will continue to occur across SE TX for at least the next several days.

5 P.M. SATURDAY ADVISORY

The center of the storm is 60 miles east-southeast of San Antonio, TX.

It is now stationary.  It will continue to produce rainfall, torrential downpours at times.  

Flooding will continue to occur across SE TX for at least the next several days.

2 P.M. SATURDAY ADVISORY

Harvey is now a tropical storm with winds of 70 mph. The center of the storm is now 60 miles east-southeast of San Antonio, TX. It is moving north-northwest at 2 mph. 

Harvey will be stationary over the next couple of days.

11 A.M. SATURDAY ADVISORY

Harvey is barely hanging on to hurricane strength and is expected to become a tropical storm sometime today. 

Harvey made landfall as a Category 4 Friday night just northeast of Corpus Christi, Texas. The eye passed over San Jose Island, near Rockport, Texas around 11 p.m. Friday. 

It weakened overnight as it sat over land and was downgraded to a category 1 Saturday morning. 

High pressure in the upper atmosphere will block Harvey from moving too far and will remain over east Texas for at least 5 days. Harvey will continue to weaken into a tropical depression, but tremendous rainfall will remain a big problem. 

Onshore wind continues to batter the coastline north of Corpus Christi through Galveston. In the Galveston areas, an intense feeder band has set up over the gulf and continues to pound the area with heavy rainfall. 

This is the type of hazard expected in a wide area over the next few days. 

5 A.M. SATURDAY ADVISORY

As of the 5 a.m. advisory, it had winds of 100 mph and will likely drop below hurricane strength by Saturday afternoon. 

North of where the center made landfall, winds continue onshore and coastal and surge issues will linger for a few days as Harvey will not move a whole lot. 

Harvey is expected to stay over the same general area through at least Thursday, dumping incredible amounts of rain.

Rain totals from just east of a line from Austin to San Antonio will be widespread over 20 inches with some amounts exceeding 4 feet of rain. This will lead to catastrophic flooding in some areas of east Texas. 

Harvey is the strongest hurricane to hit the U.S. Coast since Charley hit Southwest Florida in August 2004.  Harvey is the strongest hurricane to hit Texas since Carla hit the same Coastal Bend area as a category 4 in 1961. Carla produced hurricane force winds as far inland as Austin.

President Trump announced he signed the disaster proclamation for Texas Friday night.

A storm surge warning is in effect for much of the Texas coast. Storm surge flooding could reach heights of 6 to 12 feet above ground level at the coast between Port O'Connor and Sargent, and 9 to 13 feet between Port Aransas and Port O'Connor. 

What exactly are the spaghetti plots?
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Remember that the spaghetti model plot does not indicate the strength of a system or even development at all. It only predicts where this broad area of low pressure is expected to go.

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