Latest Official Hourly Observation:

Friday – Increasing Clouds, Evening Rain/Snow – Morning Low 24 / Afternoon High 48
6a 24 . 9a 33 . 12p 43 . 3p 46 . 6p 42 . 9p 40
After a cold morning, we’ll warm almost to 50 in the afternoon.
Latest Official Hourly Observation:

Friday – Increasing Clouds, Evening Rain/Snow – Morning Low 24 / Afternoon High 48
6a 24 . 9a 33 . 12p 43 . 3p 46 . 6p 42 . 9p 40
After a cold morning, we’ll warm almost to 50 in the afternoon.
Latest Official Hourly Observation:

Tonight – Clear & C-O-L-D – Low at Midnight: 25
Bundle up tonight! Another reinforcement of Canadian air is on the way.
Thursday – Sunny & Cold – Morning Low 18, High 37
Current Official Hourly Observation

First and foremost, thank you to everyone who tweeted in reports last night via #tSpotter and as replies to @NashSevereWx. Every single report was seen by the forecasters at our NWS office in Old Hickory. Your reports provide ground truth to forecasters; the radar can only show so much. Your reports enable the NWS to serve us better, furthering their mission of protecting life and property.
Current Official Hourly Observations

Overnight snow totals:

This was created by the Snow Blob that came through after midnight, seen here at 11:52 p.m.:

We’re starting to rise above freezing:
Latest Official Hourly Observation

The snow is over. There’s a small chance you’ll see a flurry or two, but that won’t add to the totals. Additional accumulation map from 3:30 a.m. to 9 a.m.:
Latest Official Hourly Observation

Midnight – Bedtime Update
From @ethanluck:

I’m going to bed. We’ll be up to listen to the NWS conference call at 4:30 a.m., then post an early morning update. After that, Will will tweet y’all up in the morning so I can get some sleep.
Latest Official Hourly Observation:

Monday – Cloudy, Chance of a Sprinkle; Wintry Mix/Snow Overnight – Morning Low 34, High 39
6am 35 . 9am 37 . Noon 39 . 3pm 39 . 6pm 35 . 9pm 33
6:30 a.m. Update
Last night’s RAP and NAM models were right.
Officially in Nashville, we reached 33 degrees just before 4 a.m., and before then in Williamson County.
Freezing rain fell off and on for about 6 or 7 hours, depending on where you live.
Bedtime Update (12:25 a.m.)
Regional Radar:

As you can see, there’s plenty of rain moving through Middle Tennessee. It’s rain because the air the rain is falling through is above freezing.
We’ve seen a few flurries this morning, but the afternoon and early evening will mainly just be dry and cold.
A new Winter Weather Advisory is effective at 9 p.m. tonight, ending 9 a.m. Sunday morning.