Storm Mode

Winter: Tennessee

Winter warnings, watches and advisories, and the forecasts for them · area: TN

UTC

11:30 PM CDT Nashville

Map

  • Freeze Watch 2

NWS’s polygons as issued, or the zones a zone-issued alert names; SPC’s watches by their counties. Checked . Data: NOAA/NWS, NOAA/SPC.

In force in this area 2

  1. Freeze Watch22 not yet in effect · until 18 Oct 13:00Z
Every alert in this area, most urgent first
  1. Freeze WatchAshe; Watauga; Tazewell; Smyth; Bland; Wythe; Grayson; Mercer; Summers; Monroe; Eastern Greenbrier; Western GreenbrierFrom · until · NWS Blacksburg VA · drawn over this area
  2. Freeze WatchAvery; Madison; Yancey; Mitchell; Swain; Haywood; Buncombe; Graham; Northern Jackson; Macon; Southern JacksonFrom · until · NWS Greenville-Spartanburg SC · drawn over this area

Most urgent first, by the Briefing’s ranking. Checked .

Spotlight: Winter Storm Severity Index

1 of 7

Winter Storm Severity Index

WPC: “WSSI does not depict official warnings and should always be used in context with official NWS forecasts and warnings.”

  • Winter Weather Area highest in this area
  • Minor Impacts
  • Moderate Impacts
  • Major Impacts
  • Extreme Impacts

Highest in this area, by day and by cause

Day 1
Winter Weather Area
Day 2
nothing drawn
Day 3
nothing drawn
Snow amount, Days 1–3
Winter Weather Area
Snow load, Days 1–3
nothing drawn
Ice, Days 1–3
nothing drawn
Blowing snow, Days 1–3
nothing drawn

Each day and cause on the Winter tab, with its own issue time

WPC’s WSSI, overall impact, Days 1–3, valid to , issued . WPC issues each day and cause on its own clock. Not a warning, and not a chance. Data: NOAA/NWS/WPC.

Chance of Moderate impacts or worse, Day 1

WPC: “WSSI does not depict official warnings and should always be used in context with official NWS forecasts and warnings.”

  • 5–10%
  • 10–20%
  • 20–30%
  • 30–40%
  • 40–50%
  • 50–60%
  • 60–70%
  • 70–80%
  • 80–90%
  • 90–95%
  • 95% or more

Each level and day on the Winter tab

WPC’s WSSI-P, the 24 hours to , WPC’s forecast from . Each band runs to the next. Data: NOAA/NWS/WPC.

Chance of at least 4 inches of snow, Day 1

WPC gives no chance of 4 inches of snow or more in this area over the next three days, so Day 1’s 4 inches is shown.

  • Slight: at least 10%
  • Moderate: at least 40%
  • High: at least 70%

Every day and amount on the Winter tab

WPC’s Probabilistic Winter Precipitation Forecast, to , issued . Outlines, as WPC draws them. Data: NOAA/NWS/WPC.

Winter watches, warnings and advisories

  • Freeze Watch 2 2 not yet in effect · until · NWS Blacksburg VA, NWS Greenville-Spartanburg SC

NWS’s winter and cold alerts in force in the area, by event as issued, each counted once, with the offices that issued them and the latest end. Data: NOAA/NWS.

Snow on the ground

NOHRSC snow depth and snow water equivalent use the source’s original pictures and legends, with qualified footprint times. Open the cached source page for availability and retained history. This wall has no snow picture to rotate; missing imagery does not mean no snow.

NOHRSC snow analysis and retained pictures

Data: NOAA/NWS/NOHRSC. Snow analysis, not a measurement at a place.

WPC’s heavy snow and icing discussion

The whole discussion

Issued , for to . WPC’s words, as written. Data: NOAA/NWS/WPC.

Radar, winter preset

The Radar page’s winter preset over the area: HRDPS forecast snow with NWS’s warnings on top, loaded by your browser. A forecast, labelled as one there.

Open the radar

Live tiles; the radar keeps no last-good copy.

What changed, last 60 minutes

since , when this server began watching this area

Nothing has changed since 04:30Z.

The products’ own words and times, and what is no longer in force since the last read. Never written by AI.