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Hurricane Hanna (2020)

Hurricane Hanna was a Category 1 hurricane at its peak, with 92 mph winds and a lowest pressure of 973 mb, per NOAA's National Hurricane Center. Modeled winds reached tropical-storm force (39 mph) at 4 of the cities we track; the strongest was Edinburg, TX, with a modeled peak gust of 61 mph.

Peak strength92 mph winds (1-minute)
Category 1
Cities with tropical-storm-force windsModeled, of the cities we track
4
LandfallsFirst July 25, 2020
2
Lowest pressure
973 mb

Track, wind field and cities

Select a piece of the track or a city for details.

  • Depression or weaker
  • Tropical storm
  • Hurricane, Category 1 or 2
  • Major hurricane, Category 3 to 5
  • Landfall
  • City (larger ring, stronger modeled gust)
  • Modeled wind field, 39 to 111 mph sustained (darker, stronger; orange 111 mph+)
Source: NOAA/NWS National Hurricane Center best track (HURDAT2). City winds and the wind field are modeled.

The shaded areas are where our model puts Hurricane Hanna’s sustained winds over open land at 39 mph or more (tropical-storm force), 58, 74 (hurricane force) and 111 mph (major hurricane force) at some point along its track. Modeled, not measured. How we model hurricane winds

Landfalls

  1. July 25, 2020, Category 1 at 92 mph, about 57 miles from Brownsville, TX
  2. July 25, 2020, Category 1 at 92 mph, about 48 miles from Edinburg, TX

Modeled winds at cities (4)

Estimated peak winds for open, flat ground at each city’s center. Not measurements. How we model hurricane winds

CityPeak gustSustainedClosest passPeak
Edinburg, TX61 mph50 mph17 milesJul 25, 2020, 11:15 PM CDT
McAllen, TX58 mph47 mph22 milesJul 25, 2020, 11:30 PM CDT
Corpus Christi, TX53 mph43 mph63 milesJul 25, 2020, 2:15 PM CDT
Brownsville, TX50 mph41 mph49 milesJul 25, 2020, 8:00 PM CDT

What happened

Hanna made landfall on Padre Island, Texas, around 5 p.m. CDT on July 25, 2020, as a Category 1 hurricane with 80-knot (92 mph) winds and a central pressure of 973 mb, less than three days after forming in the central Gulf of Mexico.1 About 75 minutes later, the eye made a second landfall at the same strength on the mainland in eastern Kenedy County, about 12 miles north-northwest of Port Mansfield.1

A coastal station near Rincon del San Jose measured a gust of 90 knots (104 mph), and gusts reached 55 knots (63 mph) at Harlingen and 52 knots (60 mph) at McAllen's airport.1 The highest storm surge was 6.24 feet at Bob Hall Pier in Corpus Christi, and water reached 3 to 5 feet above ground along parts of Corpus Christi, Nueces and Aransas bays.1 Rain totaled 6 to 12 inches across South Texas and the Rio Grande Valley, peaking at 15.49 inches near Santa Rosa in Cameron County.1 Rain and poor drainage left 18 inches to 4 feet of water in many areas from Santa Rosa and La Feria to east of Edinburg, and around Mission, La Joya and Sullivan City.2 Five EF0 tornadoes touched down in South Texas, mostly downing trees and causing minor structural damage.1

NWS Brownsville reports hundreds of poorly built homes and other structures damaged, mostly roofs but also siding and walls, and dozens of buildings in colonias left uninhabitable.2 In Nueces County, surge flooded several buildings in Corpus Christi and damaged some public facilities.1 NHC counts no direct deaths in the United States and five indirect deaths in Texas. NCEI estimates Hanna caused more than $1.1 billion in damage in the United States.1

Sources

  1. 1. NOAA National Hurricane Center: Tropical Cyclone Report: Hurricane Hanna (AL082020)
  2. 2. NWS Brownsville/Rio Grande Valley: July 25-27, 2020: Hurricane Hanna Brings Flooding Rain, Damaging Winds to the Rio Grande Valley

Best track (18 positions)

TimeStatusWindPressurePosition
Jul 23, 00:00 UTCTropical depression29 mph1009 mb25.7°N, 88.3°W
Jul 23, 06:00 UTCTropical depression29 mph1009 mb25.8°N, 89.0°W
Jul 23, 12:00 UTCTropical depression35 mph1009 mb25.9°N, 89.7°W
Jul 23, 18:00 UTCTropical depression35 mph1006 mb26.0°N, 90.4°W
Jul 24, 00:00 UTCTropical storm40 mph1002 mb26.2°N, 91.1°W
Jul 24, 06:00 UTCTropical storm46 mph1001 mb26.6°N, 92.0°W
Jul 24, 12:00 UTCTropical storm52 mph1000 mb27.1°N, 92.8°W
Jul 24, 18:00 UTCTropical storm58 mph997 mb27.2°N, 93.7°W
Jul 25, 00:00 UTCTropical storm63 mph993 mb27.1°N, 94.5°W
Jul 25, 06:00 UTCTropical storm69 mph988 mb27.1°N, 95.3°W
Jul 25, 12:00 UTCCategory 1 hurricane81 mph981 mb27.1°N, 96.0°W
Jul 25, 18:00 UTCCategory 1 hurricane92 mph973 mb26.9°N, 96.8°W
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