The Dexes / Coastal Flood, High Surf & Storm Surge / 914328
Eventdex · Coastal Flood, High Surf & Storm Surge
COASTAL WILLACY
914328
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 | 914,328 |
| Episode IDepisode_id | 150,353 |
| Begin UTCbegin_utc | 2020-07-25T20:00:00+00:00 |
| End UTCend_utc | 2020-07-26T03:00:00+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 | 11.87K |
| 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 | Storm surge generated by Hurricane Hanna pushed water and breaking waves deep into the dunes in the Willacy County portion of the Padre Island National Seashore (PINS), mainly between mile marker 55 and 60 to the Mansfield cut. There was likely water deep into the dunes farther south in coastal Willacy County, but levels are unknown. A sharp cutoff to significant surge/coastal flooding was likely near the Cameron County line, where strengthening westerly flow held sea water from reaching into the dunes after the morning high tide on July 25th. Though high water marks had not been specifically provided on the Willacy County section of PINS at the time of this writing, ground and aerial surveys along with video taken just prior to landfall in Kenedy County suggested water levels above ground may have exceeded 3 feet above normally dry ground in this area. Dunes were severely eroded north of the Mansfield Cut.||Along Laguna Madre, tides ran out on northwest flow ahead of landfall, but rose sharply on strong southeast to south flow post-landfall. This produced another surge event on the 26th...see the second event listing for Coastal Willacy for details. ||Other than severe beach erosion, there was little known property damage due to Storm Surge in largely unpopulated coastal Willacy County north of the Mansfield cut. However, damage estimates for fishing huts and other coastal properties was calculated by local storm data experts using NCEI's total dollar damage estimate (divided among the affected counties by local storm data experts) and was $11,866 for coastal Willacy County. |
| Yearyear | 2,020 |
Provenance
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