Hurricane Hanna Wrap

Bill's Blog

Yet another tropical storm. We’re up to the letter “H” already and this was “Hanna”. Hanna reached hurricane strength before it moved into South Texas. The storm produced strong wind gusts and over 6″ of rain. The graphic above shows the path of the storm.

Hanna was the first Atlantic hurricane to make landfall in Texas during the month of July since Dolly in 2008. The eighth named storm and first hurricane of the 2020 Atlantic hurricane season, Hanna developed from a tropical wave originating near Hispaniola. This disturbance dropped heavy rain over parts of Hispaniola, Cuba, and Florida. The wave gradually became more organized and developed into a tropical depression in the central portion of the Gulf of Mexico. The depression strengthened into a tropical storm on July 24, setting a new record for earliest eighth-named storm in the basin, getting its name 10 days before the previous record holder of Tropical Storm Harvey in 2005. Hanna steadity intensified as it drifted toward Southern Texas, becoming the season’s first hurricane early on July 25 before strengthening and making landfall later in the day. Hanna made landfall as a Category 1 hurricane, with a peak intensity of 90 miles per hour (145 km/h).

Hanna was the first hurricane to make landfall in Texas since Hurricane Harvey in 2017. In Florida, Hanna killed one person due to rip currents.

200,000 residents lost power due to Hanna’s winds. A portion of the Bob Hall Pier near Corpus Christi collapsed during the storm. Storm surge from Corpus Christi Bay flooded the first floor of the Art Museum of South Texas. The surge also flooded the outdoor exhibits at the Texas State Aquarium. The surge caused coastal flooding on North Beach in Corpus Christi as well as North Padre Island and Port Aransas. The T-Heads of Corpus Christi were inundated with storm surge flooding with officials blocking the streets off. Near the JFK Causeway a truck was submerged by water as large waves crashed into the small islands underneath the causeway. In the Rio Grande Valley, Hanna dumped up to half a foot of rain causing widespread flash flooding. Hanna also caused downed trees and damaged roofs in the area. The roof of a funeral home collapsed in Edinburg after being damaged by Hanna.

Strong winds damaged roofs and windows in Port Mansfield where the peak gust of wind was 82 mph as Hanna made landfall nearby On I-69E, a trailer being pulled by a pickup truck was blown over while a tractor trailer was also blown over further down the road in Lyford, Texas.

A buoy off the Texas Coast reported the strongest wind gust of 103 mph.

Prior to landfall, Hanna spawned a tornado north of Corpus Christi near Sinton. Several tornado warnings were issued for that same area after the storm made landfall, although no other tornadoes were reported. Multiple flash flood warnings were issued as well.

The storm diminished to a tropical depression and then faded away. It was still producing rain in NE Mexico Monday PM. Here’s the last track of the storm:

cone graphic

Here’s Texas regional radar:

South Plains sector loop
Go to: Most Recent Image Here’s Corpus Christi TX radar:

Click for latest Base Reflectivity radar image from the Corpus Christi, TX radar and current weather warnings

and rainfall from Hanna:

Here’s Key Messages about the storm in Spanish and in Englishthe probability of tropical storm force (+39 mph) wind guststhe Public Advisory on the stormthe Forecast Advisorythe Forecast Discussion…and the Infrared Satellite Loop.

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