San Tan Valley, AZ Live Doppler Radar

Live radar for San Tan Valley, Pinal County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for San Tan ValleyWhat TALON shows

What weather hits San Tan Valley?

Since 1996, the National Weather Service has logged damaging thunderstorm winds on 197 days in the Northwest Pinal County forecast zone and Pinal County — the most common reported hazard around San Tan Valley, mostly in July and August. Next come flash flooding (102 days) and dust storms (62 days).

HazardDays reportedMost recentWorst on record
Damaging thunderstorm winds197Sep 2025Aug 13, 2007 · $5.0 million damage
Flash flooding102Oct 2025Sep 9, 2006 · 2 deaths
Dust storms62Mar 2026Oct 18, 2024 · $5,000 damage
Excessive heat41Jun 2024—
Flooding22Oct 2025Jul 25, 2021 · $7.5 million damage
Lightning casualties & damage9Sep 2022Oct 21, 2000 · 1 death
Debris flows3Sep 2025Sep 25, 2025 · $3,000 damage
High winds1Feb 2023Feb 22, 2023 · $1,000 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 Northwest Pinal County forecast zone and Pinal County; damage is as reported, not adjusted for inflation.

Which radars cover San Tan Valley?

The closest NEXRAD Doppler radar is KIWA (Phoenix, AZ), about 10 miles northwest. 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 San Tan ValleyView
KIWA
Phoenix, AZ		10 mi northwest500 ftExcellent — the lowest scan sees close to the ground
KFSX
Flagstaff, AZ		99 mi north-northeast9,400 ftFair — the beam can pass over shallow snow and low-level rotation
KEMX
Tucson, AZ		104 mi south-southeast10,200 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 San Tan Valley

Since 1950, NOAA has recorded 28 tornadoes within 25 miles of San Tan Valley, 2 of them EF2/F2 or stronger. Most came in July and March. The strongest was an F2 on August 30, 1971, which passed about 24 miles northwest of town. The most recent was an EF0 on October 16, 2022, which touched down about 19 miles west of town.

Hail: 40 reports of 1-inch or larger hail within 25 miles since 1955, 2 of them 2 inches or more; the largest was 3.00-inch hail on October 5, 2010.

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 San Tan Valley'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.

San Tan Valley radar FAQ

Where is the nearest weather radar to San Tan Valley, AZ?

KIWA (Phoenix, AZ), about 10 miles northwest. KFSX (Flagstaff, AZ) is 99 miles away and also covers the area.

Can radar see a tornado near San Tan Valley?

Radar can't see the tornado itself, but it shows the rotating storm and, once debris is lofted, a debris signature. Over San Tan Valley the lowest scan from KIWA is about 500 ft up — excellent — the lowest scan sees close to the ground.

Is TALON's radar for San Tan Valley 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 San Tan Valley, follow it right away — see watch vs. warning.

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