Abundant tropical moisture was over the Coastal Bend on September 3rd. Scattered thunderstorms with very heavy rainfall produced flash flooding in Corpus Christi.
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The episode as NWS CRP wrote it up.
Abundant tropical moisture was over the Coastal Bend on September 3rd. Scattered thunderstorms with very heavy rainfall produced flash flooding in Corpus Christi.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Corpus Christi, TX wrote its last area forecast discussion before the first event at Sep 3, 5:46 AM CST, 3 hours 55 minutes earlier.
Area Forecast Discussion National Weather Service Corpus Christi TX 646 AM CDT Sat Sep 3 2022 ...New AVIATION... .SHORT TERM... (Today through Sunday) Issued at 419 AM CDT Sat Sep 3 2022 The deterministic models continue to predict the development of an upper level trough/low over the region during the period. The 00z/06z Saturday run of the GFS/NAM valid at 09z Saturday depict PWAT values that are higher than output from both the satellite- based blended PWAT and the NUCAPS sounding PWAT values, along the coast. Nevertheless, expect at least 2 inch PWAT values over the CWA during the period. The upper pattern will be conducive to a quasi-stationary weak frontal boundary over the CWA during the period. The HREF ensemble mean MSLP/surface wind suggest that the boundary will meander near the northern CWA today, then move slightly southward tonight/Sunday. The combination of the foregoing will contribute to scattered to widespread convection today and Sunday. Concur with SPC with regard to a Slight Risk today/Sunday. However, after coordinating with surrounding WFOs, will not issue a FFA at this time. SBCAPE values 2000-2200 J/kg and 0-4-km column warm but less than nearly saturated (NAM deterministic) suggest less than efficient rainfall production. Expect any flash flooding to be isolated/localized. Although swell periods are expected to increase, the WaveWatch has consistently predicted less than 8 second swell periods for today/Sunday. Will maintain a low rip current risk today/Sunday. Per the P-ETSS, minor coastal flooding may occur at some locations along the coast, during the times of high tide, as early as Sunday morning. Maximum Heat Index value around 105F today and 100F Sunday. && .LONG TERM... (Sunday night through next Friday) Issued at 419 AM CDT Sat Sep 3 2022 Key Messages: - Rain chances continue into late next week - Heavy rainfall could lead to localized flooding - South Texas in a slight risk for excessive rainfall Monday (15% chance of rainfall exceeding flash flood guidance within 25 miles of a point). - The Rio Grande Plains and western Brush Country are in a slight risk of excessive rainfall for Tuesday. -Potential for minor coastal flooding and increased risk of rip currents Monday Mid to upper level low pressure will deepen into the state over the latter part of the weekend, bringing favorable upper-level support for showers and thunderstorms. This system, along with copious tropical moisture (PWATs near 2.2-2.4") and a quasi- stationary frontal boundary will contribute to scattered to numerous showers and thunderstorms through the middle of the week next week. Heavy rainfall remains the main concern with the forecast. WPC has included all of South Texas in a slight risk for excessive rainfall for Monday and the Rio Grande Plains/Western Brush Country in a slight risk for excessive rainfall on Tuesday. Flash flooding also remains a concern through mid-week, particularly for low-lying or poor drainage areas, and for areas that have saturated soils from previous rainfall. Daily chances for convection will continue through the end of the forecast period as available moisture remains high and another disturbance approaches the area. Temperatures through the long-term forecast period will be on the cooler side due to increased cloud cover and rainfall. Minor coastal flooding remains possible Monday and Tuesday as P-ETSS guidance continues to indicate tide levels exceeding 2.0 ft MSL during times of high tide. && .AVIATION... (12Z TAFS) Issued at 638 AM CDT Sat Sep 3 2022 Anticipate the development of prevailing MVFR conditions today. Expect showers to continue to develop over the Coastal Plains this morning along with an increase in areal coverage. Scattered to numerous showers/thunderstorms are anticipated over much of South Texas this afternoon/evening. A cessation of activity anticipated early tonight, followed by the development of convection after midnight, with prevailing shower activity over the northern sections (COT/VCT) toward the end of the TAF period. Generally weak onshore flow through this evening, following by light and variable wind after midnight. && .MARINE... Issued at 419 AM CDT Sat Sep 3 2022 The combination of copious moisture, a developing upper trough/ low, and a quasi-stationary weak frontal boundary, will contriubte to an increasing chance for convection today through Sunday. A generally weak to moderate southeast to east flow will continue through mid next week, along with a daily potential for showers and thunderstorms owing to plentiful available moisture lingering. && .PRELIMINARY POINT TEMPS/POPS... Corpus Christi 86 76 85 74 / 70 60 80 60 Victoria 90 73 83 72 / 80 50 80 50 Laredo 91 75 85 74 / 80 70 90 70 Alice 88 73 87 72 / 80 60 80 60 Rockport 87 76 88 77 / 70 60 80 60 Cotulla 93 75 83 74 / 50 60 80 50 Kingsville 88 75 87 74 / 80 60 80 60 Navy Corpus 87 79 86 79 / 70 70 80 70 && .CRP WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && SHORT TERM...WC LONG TERM....HA AVIATION...WC/87
Hazardous Weather Outlook National Weather Service Corpus Christi TX 501 AM CDT Sat Sep 3 2022 TXZ229>234-239>247-342>347-442-443-447-041015- La Salle-McMullen-Live Oak-Bee-Goliad-Victoria-Webb-Duval-Jim Wells- Inland Kleberg-Inland Nueces-Inland San Patricio-Coastal Aransas- Inland Refugio-Inland Calhoun-Coastal Kleberg-Coastal Nueces- Coastal San Patricio-Aransas Islands-Coastal Refugio-Coastal Calhoun- Kleberg Islands-Nueces Islands-Calhoun Islands- 501 AM CDT Sat Sep 3 2022 This Hazardous Weather Outlook is for south Texas. .DAY ONE...Today and tonight. Scattered to numerous thunderstorms expected. There is a Slight Risk of excessive rainfall today and tonight. Locally heavy rainfall and isolated flooding possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Numerous thunderstorms are expected Sunday. Scattered thunderstorms Monday through Wednesday. There is a Slight Risk of excessive rainfall across South Texas Sunday through Tuesday. The heavy rainfall may lead to localized flooding or flash flooding. Minor coastal flooding will be possible during times of high tide Sunday through Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. GMZ231-232-236-237-250-255-270-275-041015- Baffin Bay and Upper Laguna Madre-Corpus Christi and Nueces Bays- Copano, Aransas, and Redfish Bays- San Antonio, Mesquite, and Espiritu Santo Bays- Coastal waters from Baffin Bay to Port Aransas out 20 NM- Coastal waters from Port Aransas to Matagorda Ship Channel out 20 NM- Waters from Baffin Bay to Port Aransas from 20 to 60 NM- Waters from Port Aransas to Matagorda Ship Channel from 20 to 60 NM- 501 AM CDT Sat Sep 3 2022 This Hazardous Weather Outlook is for Gulf of Mexico. .DAY ONE...Today and tonight. Scattered to numerous thunderstorms are expected. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Numerous thunderstorms are expected Sunday. Scattered thunderstorms are expected Monday through Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. 87/HA
The Corpus Christi radar (KCRP), 14 km away, was scanning. The volume nearest the first event began at 15:41 UTC.
2 flash flood. Local standard time, as filed.
High water was reported on several roads near the downtown area. Barricades were requested to close off affected roads.
Multiple streets in the South Shore Estates of Corpus Christi were flooded.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2022Every state in 2022This day in weather historyWarnings in Texas, September 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1057985, 1057986.