Light ice and snow fell across the Northwest Hill Country as cold arctic air had settled across the region. This made roads and bridges icy.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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 SJT wrote it up.
Light ice and snow fell across the Northwest Hill Country as cold arctic air had settled across the region. This made roads and bridges icy.
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 San Angelo, TX wrote its last area forecast discussion before the first event at Jan 15, 10:59 PM CST, 3 hours 31 minutes earlier.
Area Forecast Discussion National Weather Service San Angelo TX 1059 PM CST Mon Jan 15 2018 .AVIATION... /06Z TAFS/ Look for VFR conditions to dominate for the next 24 hours. Models this forecast cycle indicate low probabilities of MVFR conditions. The Junction terminal is currently reporting overcast skies at twenty nine hundred feet above ground level. Based on model data and trends at the Abilene and San Angelo terminals, the other three terminals will be VFR soon. As for wintry precipitation, radar data indicate some bands of possible sleet or light snow are moving, from southwest to northeast, across some of our counties, Thus, continuing weather at all 5 terminals looks reasonable. However, expect all precipitation to end by 12Z. && .PREV DISCUSSION... /issued 605 PM CST Mon Jan 15 2018/ AVIATION... /00Z TAFS/ Look for very challenging flight weather to dominate West Central Texas, through at least 12Z to 15Z tomorrow. A strong Arctic cold front has just moved south of the San Angelo terminal. This front is producing winds from the north around 25 knots, with gusts near 35 knots. Short term models continue to indicate mainly sleet or light snow. The Abilene and San Angelo terminals will likely receive small accumulations of one or two tenths of an inch or less. The Sonora, Junction, and Brady terminals may receive sleet or snow accumulations around one quarter inch. By 18Z, expect VFR conditions at all terminals. PREV DISCUSSION... /issued 241 PM CST Mon Jan 15 2018/ SHORT TERM... (Tonight and Tuesday) Arctic front has made it to I-20 as of mid afternoon, switching winds around to the north. Coldest air lingers to the north a little, as an area of low cloudiness shifts south across the South Plains and Red River Valley. Temperatures are falling to freezing across Oklahoma and are well down into the teens across Kansas so the cold air is on schedule to arrive this evening and overnight. Models with the best low level resolution like the NAM and HRRR continue to show light precipitation starting across the area by mid evening north of the front and continuing through the early morning hours. Still appears to be a mixture of light freezing rain and sleet. For much of the area, totals will be light and impacts will be fairly small and consists of some icy spots on bridges and overpasses. A little different story down across the southeast counties from Brady and San Saba down to Mason and Junction. Wintry precipitation looks to be more widespread, and impacts could be a little more significant. Again, freezing rain and sleet look the most likely based on soundings, although a changeover to a little snow is possible after 12Z Tuesday morning. Will continue with the Winter Storm Warning in those areas. Skies may clear a little quicker on Tuesday afternoon from the north, enough perhaps to see a little more sunshine. Temperatures may actually climb above freezing across the northern Big Country, with other areas seeing readings close to the 30 degree mark. LONG TERM... (Tuesday night through Monday) Surface high pressure will build into North Texas resulting in light winds and clearing skies across West Central Texas. Cloud cover may linger across the Interstate 10 corridor, although most of the cloud cover should shift south by sunrise. These factors in combination with very dry air (dewpoint temperatures near 0 for much of the area) will result in good radiational cooling conditions. Very cold temperatures are forecast Wednesday morning, with most locations dropping into the teens. A few low lying locations may drop into the single digits. After a very cold start to the morning, afternoon highs will warm into the mid to upper 30s for most locations. Good radiational cooling conditions are once again forecast Thursday morning, with most locations bottoming out in the low to mid 20s. An upper level shortwave trough will swing across the region late Wednesday night into Thursday morning. At this point, most of the light precipitation associated with this feature looks to remain south of our area, so have kept PoPs out of the forecast. A slow warm up is expected Thursday through Saturday, with highs on Thursday in the mid 40s to near 50 degrees and getting back into the 60s on Friday. Above normal temperatures are forecast on Saturday, with highs in the upper 60s to lower 70s for most locations. The next upper level storm system will approach the forecast area late Saturday into Sunday, sending a Pacific cold front through the region on Sunday. Isolated showers will be possible along the front across our eastern counties, where the better moisture will reside. Cooler temperatures are in store for Sunday and Monday, with highs mainly in the upper 50s to lower 60s. && .PRELIMINARY POINT TEMPS/POPS... Abilene 20 31 12 37 / 30 10 0 0 San Angelo 22 30 16 39 / 40 20 5 5 Junction 22 25 17 37 / 70 40 5 5 Brownwood 21 31 13 36 / 60 20 0 0 Sweetwater 20 31 16 37 / 20 5 0 0 Ozona 23 30 19 37 / 60 30 5 5 && .SJT WATCHES/WARNINGS/ADVISORIES... Winter Weather Advisory until noon CST Tuesday for Brown- Callahan-Coke-Coleman-Concho-Crockett-Irion-Runnels-Schleicher- Shackelford-Taylor-Tom Green. Winter Storm Warning until noon CST Tuesday for Kimble-Mason- McCulloch-Menard-San Saba-Sutton. &&
Hazardous Weather Outlook National Weather Service San Angelo TX 214 PM CST Mon Jan 15 2018 TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139- 140-154-155-168>170-162015- Fisher-Nolan-Sterling-Coke-Runnels-Irion-Tom Green-Concho- Crockett-Schleicher-Sutton-Haskell-Throckmorton-Jones-Shackelford- Taylor-Callahan-Coleman-Brown-McCulloch-San Saba-Menard-Kimble- Mason- 214 PM CST Mon Jan 15 2018 This Hazardous Weather Outlook is for portions of west central Texas. .DAY ONE...This Afternoon and Tonight A light mix of wintry precipitation is possible for tonight into Tuesday morning. Although light accumulations are expected for much of the area, portions of the Heartland, Northwest Hill Country, and northern Edwards Plateau may see higher totals. This may result in hazardous driving conditions in some locations. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday The threat for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
The national radar mosaic for the moment the first event began.
2 winter weather. Local standard time, as filed.
Light ice, sleet and snow fell causing some roads and bridges to become icy.
Light ice, sleet and snow fell causing roads and bridges to become icy.
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, January 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: 734406, 734407.