Alcoa, TN Live Doppler Radar

Live radar for Alcoa, Blount County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for AlcoaWhat TALON shows

What weather hits Alcoa?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 209 days in the NW Blount forecast zone and Blount County — the most common reported hazard around Alcoa, mostly in June and July. Next come heavy snow & winter storms (36 days) and flash flooding (17 days).

HazardDays reportedMost recentWorst on record
Damaging thunderstorm winds209Mar 2026Apr 25, 2010 · $120,000 damage
Heavy snow & winter storms36Jan 2026—
Flash flooding17May 2026May 5, 2003 · $3.6 million damage
Flooding15Jan 2024Feb 23, 2019 · $2.8 million damage
High winds12Mar 2025Dec 9, 2009 · $20,000 damage
Ice storms & sleet3Dec 2010Dec 16, 2010 · $10,000 damage
Lightning casualties & damage2May 1999Jul 13, 1996 · 1 death
Excessive heat1Aug 2007—

Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the NW Blount forecast zone and Blount County; damage is as reported, not adjusted for inflation.

How much snow does Alcoa get?

A normal year brings about 4.6 inches of snow to Alcoa, based on NOAA's 1991–2020 climate normals for the Knoxville Mcghee Tyson Ap weather station 1 mile away. The snowiest month is usually January (1.7 in).

OctNovDecJanFebMarAprMay
0.00.10.51.71.40.90.00.0

Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.

Which radars cover Alcoa?

The closest NEXRAD Doppler radar is KMRX (Knoxville, TN), about 40 miles northeast. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.

RadarDistanceLowest beam over AlcoaView
KMRX
Knoxville, TN		40 mi northeast2,600 ftExcellent — the lowest scan sees close to the ground
KGSP
Greer, SC		118 mi east-southeast12,400 ftLimited — the beam overshoots the lowest part of storms
KJKL
Jackson, KY		128 mi north-northeast14,100 ftLimited — the beam overshoots the lowest part of storms

Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.

Tornado & hail history near Alcoa

Since 1950, NOAA has recorded 47 tornadoes within 25 miles of Alcoa, 12 of them EF2/F2 or stronger. Most came in April and May. The strongest was an EF4 on April 27, 2011, which passed about 13 miles south-southeast of town. The most recent was an EF2 on August 7, 2023, which passed about 11 miles northwest of town.

Hail: 320 reports of 1-inch or larger hail within 25 miles since 1955, 26 of them 2 inches or more; the largest was 4.00-inch hail on April 28, 1959.

Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.

On TALON you get Alcoa's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.

Alcoa radar FAQ

Where is the nearest weather radar to Alcoa, TN?

KMRX (Knoxville, TN), about 40 miles northeast. KGSP (Greer, SC) is 118 miles away and also covers the area.

Does radar show snow in Alcoa?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Alcoa the lowest scan from KMRX is about 2,600 ft up.

Is TALON's radar for Alcoa free?

Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.

Should I rely on radar for my safety?

No app replaces official warnings. When the National Weather Service issues a warning for Alcoa, follow it right away — see watch vs. warning.

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