The Dexes / Coastal Flood, High Surf & Storm Surge / 914333
Eventdex · Coastal Flood, High Surf & Storm Surge
COASTAL WILLACY
914333
The record
Everything the slot carries, as measured. Series arrays are drawn above and listed here in full.
| Event typeevent_type | Storm Surge/Tide |
|---|---|
| NOAA NCEI event IDncei_event_id | 914,333 |
| Episode IDepisode_id | 150,353 |
| Begin UTCbegin_utc | 2020-07-26T16:00:00+00:00 |
| End UTCend_utc | 2020-07-27T00:00:00+00:00 |
| Statestate | TEXAS |
| County/zone typecz_type | Z |
| County/zone namecz_name | COASTAL WILLACY |
| Deaths directdeaths_direct | 0 |
| Deaths indirectdeaths_indirect | 0 |
| Injuries directinjuries_direct | 0 |
| Injuries indirectinjuries_indirect | 0 |
| Damage propertydamage_property | 0.00K |
| Damage cropsdamage_crops | 0.00K |
| Weather forecast office sourcewfo_source | C-MAN Station |
| Episode narrativeepisode_narrative | Hurricane Hanna, the 2020 Atlantic season's first Hurricane, made landfall along the unpopulated Padre Island National Seashore on the mid-Kenedy County coastline as a Category 1 storm at around 5 PM Central Time Saturday, July 25th, carrying sustained 90 mph winds with gusts over 100 mph in a small portion of the inner eye wall. The hurricane spun slowly but steadily into southern Kenedy and northern Hidalgo County through just after midnight on the 26th, then through Starr County as a Tropical Storm before moving into Tamaulipas before daybreak and eventually near Monterrey, Nuevo Leon, by noon before dissipating during the evening of the 26th. Following the passage of the inner eye wall, broad feeder bands of torrential rains and gusty tropical storm force winds continued through the mid to late morning hours of July 26th, slowly migrating from east to west across the populated Rio Grande Valley. ||Other than storm surge flooding, which peaked just north of Baffin Bay on the Kleberg and Nueces County coast near Corpus Christi, Hanna's memory for the Rio Grande Valley will be flooding rainfall, power outages, and an array of damage to poorly constructed buildings, from minor roof damage to complete demolition. Between 8 and 15 inches of rain fell from Port Mansfield to Harlingen, and along Interstate Highway 2 out through Mission and Sullivan City. The combination of high rainfall, locally high rainfall rates, and poor drainage left between 18 inches and four feet of water depth in many areas, most commonly from western Cameron through southeastern Hidalgo County, as well as a separate pocket in the Mission/La Joya/Sullivan City area. The rainfall wiped out 95% of the region's cotton crop; the combination of crop loss and production loss was more than one third of a billion dollars alone ($366 million)...most of which was in the Rio Grande Valley region. ||At the peak of the storm, 250 thousand electric customers were without power, including all of Willacy County. Though storm surge was cut short by strong westerly flow across Cameron County, radiating swells did produce a notable surge of 3 feet or greater (estimated) from near Port Mansfield through Kenedy County. When the damage and economic loss is counted to infrastructure and agriculture combined, it is likely that Hanna cost at least one billion dollars across the Rio Grande Valley and the Deep S. Texas ranch country. |
| Event narrativeevent_narrative | Along Laguna Madre in northern coastal Willacy County, the approach of Hurricane Hanna just 15 miles north of the county line produced strong outbound tide on strong northwest winds. As the eye moved onshore and passed the longitude of Laguna Madre, winds quickly shifted to the south with strong tropical storm force gusts, and waters rose rapidly. Peak tide (2.62 feet above Mean Sea Level) occurred at Port Mansfield at 1136 AM CST July 26th. Based on these conditions, as well as survey results that showed return water about 25 yards into marsh grass along Laguna Madre in Port Mansfield, it was possible that 3 feet of water above normally high ground occurred at some point between 10 AM CST and 6 PM CST on July 26th, all associated with the backside circulation around Hanna, which had weakened to a tropical storm (but still with a large envelope) in northeast Mexico. ||Other than flattened marsh grass, no visible property damage was seen due to surge water in the town of Port Mansfield based on an NWS storm survey conducted on July 27th. |
| Yearyear | 2,020 |
Provenance
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