A warm front moved onto the coast and generated showers and isolated thunderstorms. Moderate rain led to minor flooding.
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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 EWX wrote it up.
A warm front moved onto the coast and generated showers and isolated thunderstorms. Moderate rain led to minor flooding.
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 Austin/San Antonio, TX wrote its last area forecast discussion before the first event at Dec 19, 5:49 AM CST, 1 hour 48 minutes earlier.
Area Forecast Discussion National Weather Service Austin/San Antonio TX 549 AM CST Mon Dec 19 2022 ...New AVIATION... .SHORT TERM... (Today through Tuesday) Issued at 227 AM CST Mon Dec 19 2022 An isentropic lift pattern is getting underway over the Rio Grande Plains and spreading north toward San Antonio and the I-35 Corridor. Radar echoes remain very light, so it appears very unlikely to see rounds of deeper convection to develop before 12Z as was hinted by earlier model runs. 06Z to 12Z QPF amounts have trended much lower, and this looks reasonable given what we are seeing on radar. A few claps of thunder will be possible along and east of I-35 from 12Z to 21Z with QPF totals still best in this window, but lighter than from earlier model depictions. After 21Z, the lighter QPF trends continue, so will assume the potential for thunder shifts east of the area by then. Northeast winds over the Coastal Prairies continue through the day and this should lock in low clouds and maintain the general cooler trend suggesting our eastern counties will have highs mainly in the upper 40s to low 50s. North to northeast winds are maintained as the upper trough drifts overhead tonight, so a mostly cloudy night and some patchy fog is expected over the eastern half to two-thirds of the area. Will show less of a fog presence over the northwest Hill Country as less rain forecast could allow for some drier air to build into the area. By midday Tuesday, a front more connected with a trough over Srn Canada/Nrn Plains begins picking up the afternoon winds and bringing a drier air regime into South Central TX. The timing of this cold air surge reflects the north to south temperature gradient as opposed to the west to east gradient we should see this afternoon. Some residual clouds could hang up over Central TX into the early Tuesday afternoon and make it hard for the NE counties to see temps much past 50. && .LONG TERM... (Tuesday night through Sunday) Issued at 227 AM CST Mon Dec 19 2022 Wednesday will see dry conditions with a brief return of southerly flow. Should see highs in the 50s to near 60 degrees. Eyes will then turn to the advancing strong arctic front expected to move through the area Thursday afternoon. Before that, lows on Thursday should be in the lower 40s. There was some thought that the global guidance could be a bit slower with the timing of the front as these arctic fronts race ahead of what the guidance suggests. The forecasted frontal position in the 84 hour NAM at 12z Thursday remains north of the Texas Panhandle which increases confidence of a Thursday afternoon FROPA for South-Central Texas versus a faster Thursday morning solution. Because of this, forecasted highs Thursday have been increased to the 50s and 60s across the area. As of now the front should arrive to our northern CWA shortly after noon and quickly move out of the CWA to the south by 7 PM. Temperatures behind the front will quickly drop below freezing by the evening hours with temperatures dropping all the way into the 10-15 degree range in the Hill Country by Friday morning and the teens to near 20 degrees for the remainder of the area. Wind speeds behind the front should be breezy and could lead to wind chill values in the -10 to 10 degree range, but there remains some uncertainty in how strong winds will be. Nevertheless, we will likely need at least a Wind Chill Advisory for the entire CWA and perhaps a Wind Chill Warning for portions of the area Friday morning. Temperatures by Friday afternoon are forecasted to remain at or below freezing for areas in the Hill Country, I35 corridor, and Coastal Plains, while the remainder of the CWA remains in the mid 30s. For those areas that do remain at or below freezing Friday, they will likely have about a 48 hour streak of freezing temperatures. Another widespread hard freeze is expected Friday night with lows ranging from 15-22 degrees across the area. All of the CWA should warm above freezing, into the middle 30s to lower 40s across the area. Another widespread freeze is then expected Sunday morning with lows in the 20s. For messaging purposes, we will start to show official forecasted data in our social media and web products. Although we are still 4-5 days from the front, all global guidance, as well as every member of the GFS and ECMWF ensemble systems show these brutally cold temperatures. Now is the time to prepare for bitterly cold air. Remember the 4 P's. Prepare to protect your pipes, pets, people, and plants for the extreme cold air. Head to the hardware store today for any last minute items needed to protect your house. && .AVIATION... (12Z TAFS) Issued at 540 AM CST Mon Dec 19 2022 The next 24 hours will be complicated with convection beginning in the early periods and lowering cigs and vsbys by late morning, possibly holding in place through much of the day. Deeper convection ramped up at 10Z with a few claps of thunder likely to impact the I-35 terminals through at least 15Z. AUS may see a nearby lightning strike as late as the early afternoon, but the deeper convection should begin pulling off the I-35 corridor between 18Z and 21Z. As the deeper waves of convection pull east will show a slight improvement to MVFR in the evening along I-35, but with the amount of precip falling early, this may have to be revised downward. Late evening should see no precipitation falling but areas of fog becoming possible as the north winds drop to around 5 knots or less. Meanwhile, no precipitation is forecast at DRT, and the dry air infiltration should improve the sky condition by mid-afternoon today. && .PRELIMINARY POINT TEMPS/POPS... Austin Camp Mabry 49 45 54 41 / 80 10 0 0 Austin Bergstrom Intl Airport 50 44 55 41 / 80 10 0 0 New Braunfels Muni Airport 53 45 59 42 / 80 0 0 0 Burnet Muni Airport 49 42 52 39 / 50 10 0 0 Del Rio Intl Airport 64 42 66 43 / 10 0 0 0 Georgetown Muni Airport 49 43 53 39 / 80 10 0 0 Hondo Muni Airport 57 40 63 41 / 30 0 0 0 San Marcos Muni Airport 52 44 57 41 / 80 10 0 0 La Grange - Fayette Regional 52 45 57 43 / 90 10 0 0 San Antonio Intl Airport 53 44 58 41 / 60 0 0 0 Stinson Muni Airport 54 45 60 43 / 60 0 0 0 && .EWX WATCHES/WARNINGS/ADVISORIES... None. && Short-Term...Oaks Long-Term...29 Aviation...Oaks
Hazardous Weather Outlook National Weather Service Austin/San Antonio TX 449 AM CST Mon Dec 19 2022 TXZ171>173-183>194-202>209-217>225-228-201100- Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera- Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde- Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala- Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit- 449 AM CST Mon Dec 19 2022 This Hazardous Weather Outlook is for South-Central Texas.. .DAY ONE...Today And Tonight. No hazardous weather is expected. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A strong Arctic cold front will arrive on Thursday. This will bring the coldest temperatures this season, thus far. Freeze Warnings and Wind Chill Advisories are likely for our area. Wind Chill Warnings and Wind Advisories are possible for parts of our area. Low temperatures Friday and Saturday mornings will be in the teens north to around 20 degrees south. High temperatures on Friday may not rise above freezing across the north. Now is the time to prepare for bitterly cold air. Remember the 4 P's to protect your plants, pipes, pets, and people for the extreme cold air. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
The national radar mosaic for the moment the first event began.
3 flood. Local standard time, as filed.
Brief heavy rain produced minor flooding in southern Austin. A low water crossing on Old San Antonio Rd. near I-35 filled with water.
Brief heavy rain produced minor flooding northwest of Elgin. A low water crossing in the 13300 block of County Line road filled with water.
Brief heavy rain produced minor flooding near Austin Bergstrom International Airport. Minor street flooding was reported at Carson Creek and Hoeke Ln.
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, December 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: 1065978, 1065979, 1065980.