Thunderstorms produced locally heavy rain across southern portions of the Coastal Bend during the early morning hours of September 12th. The heaviest rainfall occurred over southern Jim Wells County where 6 to 8 inches of rain fell.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CRP wrote it up.
Thunderstorms produced locally heavy rain across southern portions of the Coastal Bend during the early morning hours of September 12th. The heaviest rainfall occurred over southern Jim Wells County where 6 to 8 inches of rain fell.
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 12, 12:08 AM CST, 52 minutes earlier.
Area Forecast Discussion National Weather Service Corpus Christi TX 108 AM CDT Wed Sep 12 2018 .DISCUSSION... Updated for the 06Z Aviation Discussion. && .AVIATION... Mainly MVFR conditions to prevail across all sites through the period, with IFR conditions expected to develop overnight across ALI/CRP/VCT and near the shower and thunderstorm activity. Conditions will be improving slightly by Wednesday evening, with convection tapering off as better focus for convection shifts southward. Winds will generally remain light and variable for the duration of the TAF cycle. && .PREVIOUS DISCUSSION... /Issued 928 PM CDT Tue Sep 11 2018/ DISCUSSION... Note Aviation Discussion pertaining to the 00z TAFs. AVIATION... Expect prevailing MVFR ceilings to develop overnight. IFR conditions expected near scattered to numerous showers and thunderstorms near the coast mainly 09-14z Wednesday. Expect conditions to improve Wednesday afternoon. Generally light wind during the TAF period. PREVIOUS DISCUSSION... /Issued 350 PM CDT Tue Sep 11 2018/ SHORT TERM (Tonight through Wednesday)... The activity across the region has really waned today as the better lift and convergence pulls farther to our north and east. We still have upper-level lift across the region though with a weak inverted trough just to our south which is helping to spark isolated to scattered showers across the interior Coastal Plains and Brush Country. Latest MRMS estimates show that these showers are producing around a quarter-inch of rain within an hour, so relatively light amounts. Rainfall rates going forward will continue to be light to moderate, though we can not fully rule out a stronger more intense storm this evening. With the loss of daytime heating the current activity should wane even farther and then gets going again after midnight as coastal convergence and the inverted trough begin to move back over our extreme eastern Coastal Bend counties, mainly the coastal communities. We decided to hold off on any further Flash Flood Watches for tonight as we expect the heaviest of the overnight rainfall to be just off the coast. There could be a few pockets of heavier rainfall that move into the Southern Coastal Bend and impact Flour Bluff and southward towards Chapman Ranch, but think the 1-2", possibly 3" over a 6 hour period may only bring about Areal Flood Advisories rather than true Flash Flooding. Still have some time to refine this over the next 6-8 hours, but expecting the heaviest rainfall to occur between 1-8AM CDT. Rainfall tapers off, much like it today, by late morning with lingering isolated to scattered activity across the west and a bit more scattered to numerous showers across the east-northeast counties. Temperatures tomorrow will be quite cool, by September standards, and with the cloud cover and rainfall expected we lowered highs a bit from guidance. LONG TERM (Wednesday Night through Tuesday)... Unsettled weather to continue through the extended. The National Hurricane Center continues to monitor an area of disturbed weather near the Yucatan. The chance of formation into a tropical cyclone is high (70%)for later this week as it moves across the western Gulf. Regardless of development, copious amounts of moisture is expected to move across S TX through the latter part of the week bringing additional showers and thunderstorms to the area. Some storms may produce heavy rainfall, dangerous lightning and gusty winds. Rainfall amounts for Wed through Sat are expected to be 4 to 6 inches with possible higher amounts. With the ground already saturated, this may lead to widespread flooding. Another Flash Flood Watch will be possible for the latter part of the week and into the weekend. Rain chances are expected to decrease by Sunday/Monday, but will still see iso/sct convection across the area. Due to the unsettled weather, temps will be near to below normal. Winds will generally be onshore and weak to mod, but could see mod to occasionally strong northeasterly winds across the coastal waters Thu through Fri, but this will be highly dependent on what happens with the disturbed weather as it approaches the region. && .PRELIMINARY POINT TEMPS/POPS... Corpus Christi 75 87 75 86 76 / 50 60 60 60 50 Victoria 73 87 74 86 74 / 50 70 50 70 50 Laredo 75 90 75 89 75 / 30 40 40 50 50 Alice 73 89 74 87 74 / 50 50 50 60 40 Rockport 77 88 76 86 78 / 50 70 60 70 50 Cotulla 74 88 73 86 73 / 20 30 20 50 50 Kingsville 75 88 75 87 75 / 50 50 50 60 40 Navy Corpus 79 88 79 87 79 / 50 60 60 60 50 && .CRP WATCHES/WARNINGS/ADVISORIES... TX...None. GM...None. && AN/88...AVIATION
Hazardous Weather Outlook National Weather Service Corpus Christi TX 554 AM CDT Tue Sep 11 2018 TXZ229>234-239>247-342>347-442-443-447-121130- 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- 554 AM CDT Tue Sep 11 2018 This hazardous weather outlook is for South Texas. .DAY ONE...Today and Tonight Numerous to widespread showers and scattered thunderstorms are expected mainly this morning and again later tonight. Locally heavy rainfall will be possible along the coast mainly this morning. A Flash Flood Watch is in effect for the coastal counties until 1 PM CDT. Some storms could produce wind gusts up to 40 mph. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Scattered to at times numerous showers and thunderstorms are expected across the region through the rest of the week. Some storms may produce heavy rainfall, dangerous lightning, and wind gusts up to 40 mph. Severe thunderstorms are not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. GMZ230-235-250-255-270-275-121130- Bays and Waterways from Baffin Bay to Port Aransas- Bays and Waterways from Port Aransas to Port O'Connor- 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- 554 AM CDT Tue Sep 11 2018 This hazardous weather outlook is for the Middle Texas Coastal Waters. .DAY ONE...Today and Tonight Numerous to widespread showers and scattered thunderstorms are expected mainly this morning and again later tonight. Waterspouts will be possible over the near shore waters and bays mainly this morning. Some storms could produce wind gusts up to 40 mph. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Scattered to at times numerous showers and thunderstorms are expected across the region through the rest of the week. Some storms may produce heavy rainfall, dangerous lightning, and wind gusts up to 40 mph. Severe thunderstorms are not expected at this time. TMT/LB
The Corpus Christi radar (KCRP), 73 km away, was scanning. The volume nearest the first event began at 07:00 UTC.
3 flood, 1 flash flood. Local standard time, as filed.
Multiple videos showed street flooding near Premont via the Snapchat map. The flooding affected 25 homes in the Premont area.
Heavy rains caused flooding along Beach Access Road 1 in Port Aransas.
Nueces County Road 28 bridge was closed between County Roads 57 and 61 due to water over the road and bridge.
Heavy rain caused flooding on Highway 361 near the Packery Channel bridge.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Texas in 2018Every state in 2018This day in weather historyWarnings in Texas, September 2018
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: 787554, 787560, 787557, 787561.