Derma, MS Live Doppler Radar
Live radar for Derma, Calhoun County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Derma?
Since 1996, the National Weather Service has logged dangerous heat on 98 days in the Calhoun forecast zone and Calhoun County — the most common reported hazard around Derma, mostly in July and August. Next come damaging thunderstorm winds (73 days) and flash flooding (21 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Excessive heat | 98 | Jun 2026 | Jul 18, 2000 · 1 death |
| Damaging thunderstorm winds | 73 | Jun 2025 | Nov 1, 2018 · $100,000 damage |
| Flash flooding | 21 | Apr 2022 | May 2, 2010 · $150,000 damage |
| Heavy snow & winter storms | 13 | Jan 2025 | Feb 1, 1996 · $20,000 damage |
| Extreme cold & wind chill | 6 | Feb 2026 | — |
| Flooding | 4 | Apr 2024 | Feb 22, 2019 · $50,000 damage |
| High winds | 3 | Mar 2023 | Jan 29, 2008 · $10,000 damage |
| Ice storms & sleet | 2 | Jan 2026 | Jan 23, 2026 · $60,000 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 Calhoun forecast zone and Calhoun County; damage is as reported, not adjusted for inflation.
Which radars cover Derma?
The closest NEXRAD Doppler radar is KGWX (Columbus AFB, MS), about 55 miles east. 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 Derma | View |
|---|---|---|---|
| KGWX Columbus AFB, MS | 55 mi east | 4,100 ft | Good — most storms and steady rain or snow show clearly |
| KNQA Memphis, TN | 108 mi north-northwest | 10,800 ft | Limited — the beam overshoots the lowest part of storms |
| KDGX Jackson, MS | 116 mi south-southwest | 12,100 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 Derma
Since 1950, NOAA has recorded 72 tornadoes within 25 miles of Derma, 21 of them EF2/F2 or stronger. Most came in April and March. The strongest was an F3 on April 21, 1984, which crossed near town and caused 15 deaths. The most recent was an EF1 on June 7, 2025, which passed about 18 miles northeast of town.
Hail: 120 reports of 1-inch or larger hail within 25 miles since 1955, 7 of them 2 inches or more; the largest was 3.00-inch hail on March 2, 2012.
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 Derma'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.
Derma radar FAQ
Where is the nearest weather radar to Derma, MS?
KGWX (Columbus AFB, MS), about 55 miles east. KNQA (Memphis, TN) is 108 miles away and also covers the area.
Does radar show snow in Derma?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Derma the lowest scan from KGWX is about 4,100 ft up.
Is TALON's radar for Derma 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 Derma, follow it right away — see watch vs. warning.
Radar for nearby towns
- Calhoun City, MS radar 2 mi
- Vardaman, MS radar 7 mi
- Bruce, MS radar 10 mi
- Houston, MS radar 17 mi
- Eupora, MS radar 22 mi
- Water Valley, MS radar 29 mi
- Duck Hill, MS radar 29 mi
- Grenada, MS radar 31 mi
- Pontotoc, MS radar 31 mi
- Okolona, MS radar 33 mi