The Dexes / Coastal Flood, High Surf & Storm Surge / 924999
Eventdex · Coastal Flood, High Surf & Storm Surge
COASTAL WILLACY
924999
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 | 924,999 |
| Episode IDepisode_id | 153,565 |
| Begin UTCbegin_utc | 2020-10-10T05:00:00+00:00 |
| End UTCend_utc | 2020-10-10T15:00:00+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 cropsdamage_crops | 0.00K |
| Weather forecast office sourcewfo_source | C-MAN Station |
| Episode narrativeepisode_narrative | As Hurricane Delta moved northward across the Gulf of Mexico in early October, outgoing swell propagated into the lower Texas coastal waters on October 8th through the 10th. This swell was powerful enough to push water into the dunes across South Padre Island around high tide, which occurred at 12:11 AM CDT on the 8th, 1:15 AM CDT on the 9th, and 2:08 AM CDT on the 10th. The most significant erosion and overwash occurred during the pre-dawn hours of October 9th, as Delta passed directly over a NOAA buoy around 200 miles east of South Padre Island at around 1150 PM on October 8th. However, the highest *tide* level that was reported was 2.38 feet above Mean Higher-High Water (MHHW; or the level above normally dry ground at the shoreline) a day later at 3:42 AM CDT on the 10th. Levels remained above 1.25 feet MHHW for several hours surrounding the occurrence of high tide on the evenings of October 7th through the 10th. This activity was enough to cause some coastal erosion, with the more significant flooding and erosion occurring on the 9th, with additional run-up and lighter erosion on the 10th. ||Farther up the coast, similar wave action and minor coastal flooding was likely - but there were no comparative measurements based on MHHW. |
| Event narrativeevent_narrative | Continued high seas and swells propagating to the west from the long-departed Hurricane Delta (which made landfall at around 6 PM CDT on October 9th) produced another, though lesser, round of tidal run/up and overwash that may have produced a bit more beach erosion following the larger impacts a day earlier. Seas at NOAA Buoy 42002, 200 miles east of South Padre Island, were still between 8 and 10 feet with swell continuing at 10 to 11 seconds.||A tide gage at Port Mansfield (inside Laguna Madre) rose above 1.5 feet above Mean Sea Level (MSL) around 12:00 AM CST October 10, and steadily rose through the following day. Peak levels of 1.77 ft above MSL from 11:36-11:54 PM CST. Water levels were then slow to fall, not falling back below 1.5 ft above MSL until around noon CST on October 12th. Though the gage remained high through October 12th, rapid drop in landward push of swell likely reduced impacts on the barrier island. By late afternoon on the 10th, combined seas had fallen below 4 feet and swell period at or below 7 seconds at NOAA Buoy 42002. |
| Yearyear | 2,020 |
Provenance
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