What Happened Overnight
The freezing line covered all of Davidson County at 1 AM. It reached Franklin at 1:40 AM, and the rest of Williamson County by 2:30 AM.
The heaviest precip started to pull away between 3 AM and 4 AM.
We now look to the west, where a band of light snow is forecast to arrive near the morning rush hour, mostly to areas along and N of I-40. NWS thinks this will fall as freezing drizzle, but don’t be fooled, that stuff slicks up the roads:
The freezing line was slow to arrive, but it made it. We’ve seen several tweets from those who’ve been driving. Earlier this morning, experiences varied from “totally fine,” to “some ice, not as bad as I thought,” to reports of power outages (suggesting icing). Starting at 5 AM, we started seeing reports like these:
Temps dropped from 30 to 24 in a few hours (4 AM to 6 AM). Conditions rapidly deteriorated as ice quickly developed.
There are several more of these. I think you all get the picture.
For road conditions, turn on local news and search the #tSpotter hashtag on Twitter.
We’ll be updating the weather throughout the morning on Twitter @NashSevereWx.
Our Winter Storm Warning continues until noon.
Current Official Hourly Observation (taken at :53 on the hour):
Current Radar Loop (the precip data is good, but ignore all the blue [snow]; this radar is very snow-happy)
Temps Next 24 Hours: