Grannis, AR Live Doppler Radar
Live radar for Grannis, Polk County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Grannis?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 106 days in the Polk County Lower Elevations forecast zone and Polk County — the most common reported hazard around Grannis, mostly in June and May. Next come flash flooding (50 days) and lightning casualties & damage (8 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 106 | Jun 2026 | Oct 13, 2014 · $125,000 damage |
| Flash flooding | 50 | Jun 2026 | May 30, 2013 · $1.8 million damage |
| Lightning casualties & damage | 8 | Jul 2014 | Jul 9, 2014 · $100,000 damage |
| Heavy snow & winter storms | 3 | Jan 2026 | — |
| Ice storms & sleet | 2 | Feb 2025 | — |
| Flooding | 2 | May 2011 | May 1, 2011 · $750,000 damage |
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 Polk County Lower Elevations forecast zone and Polk County; damage is as reported, not adjusted for inflation.
How much snow does Grannis get?
A normal year brings about 3.6 inches of snow to Grannis, based on NOAA's 1991–2020 climate normals for the Bogg Springs weather station 7.9 miles away. The snowiest month is usually January (1.2 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 0.1 | 0.4 | 1.2 | 1.2 | 0.7 | 0.0 | 0.0 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Grannis?
The closest NEXRAD Doppler radar is KSRX (Fort Smith, AR), about 73 miles north. 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.
| Radar | Distance | Lowest beam over Grannis | View |
|---|---|---|---|
| KSRX Fort Smith, AR | 73 mi north | 6,000 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KLZK Little Rock, AR | 124 mi east-northeast | 13,400 ft | Limited — the beam overshoots the lowest part of storms |
| KSHV Shreveport, LA | 127 mi south-southeast | 13,900 ft | Limited — 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 Grannis
Since 1950, NOAA has recorded 73 tornadoes within 25 miles of Grannis, 23 of them EF2/F2 or stronger. Most came in April and May. The strongest was an F5 on April 2, 1982, which passed about 22 miles southwest of town. The most recent was an EF1 on April 30, 2025, which passed about 20 miles south-southeast of town.
Hail: 337 reports of 1-inch or larger hail within 25 miles since 1955, 34 of them 2 inches or more; the largest was 5.00-inch hail on June 19, 2019.
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 Grannis'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.
Grannis radar FAQ
Where is the nearest weather radar to Grannis, AR?
KSRX (Fort Smith, AR), about 73 miles north. KLZK (Little Rock, AR) is 124 miles away and also covers the area.
Can radar see a tornado near Grannis?
Radar can't see the tornado itself, but it shows the rotating storm and, once debris is lofted, a debris signature. Over Grannis the lowest scan from KSRX is about 6,000 ft up — fair — the beam can pass over shallow snow and low-level rotation.
Is TALON's radar for Grannis 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 Grannis, follow it right away — see watch vs. warning.
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