Discovery Harbour, HI Live Doppler Radar
Live radar for Discovery Harbour, Hawaii in Hawaii County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Discovery Harbour?
Since 1996, the National Weather Service has logged flash flooding on 106 days in the Big Island Southeast forecast zone and Hawaii in Hawaii County — the most common reported hazard around Discovery Harbour, mostly in December and March. Next come flooding (71 days) and wildfires (26 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Flash flooding | 106 | Jun 2026 | Feb 18, 2018 · 1 death |
| Flooding | 71 | Jan 2026 | Aug 25, 2024 · $5.0 million damage |
| Wildfires | 26 | Aug 2023 | Nov 18, 2003 · $15,000 damage |
| Lightning casualties & damage | 8 | Feb 2023 | Oct 12, 2017 · $15,000 damage |
| Damaging thunderstorm winds | 6 | Feb 2018 | Feb 18, 2018 · 1 death |
| Debris flows | 3 | Nov 2023 | — |
| High winds | 1 | Nov 2023 | — |
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 Big Island Southeast forecast zone and Hawaii in Hawaii County; damage is as reported, not adjusted for inflation.
Which radars cover Discovery Harbour?
The closest NEXRAD Doppler radar is PHWA (South Shore, HI), about 4 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.
| Radar | Distance | Lowest beam over Discovery Harbour | View |
|---|---|---|---|
| PHWA South Shore, HI | 4 mi northeast | 200 ft | Excellent — the lowest scan sees close to the ground |
| PHKM Kohala, HI | 75 mi north | 6,300 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| PHMO Molokai, HI | 175 mi northwest | 23,400 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 Discovery Harbour
Since 1950, NOAA has recorded 1 tornado within 25 miles of Discovery Harbour. The strongest was an F0 on February 28, 2004, which passed about 14 miles northeast of town.
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 Discovery Harbour'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.
Discovery Harbour radar FAQ
Where is the nearest weather radar to Discovery Harbour, HI?
PHWA (South Shore, HI), about 4 miles northeast. PHKM (Kohala, HI) is 75 miles away and also covers the area.
How often does Discovery Harbour flood?
Since 1996 the National Weather Service has logged flash flooding on 106 days in the Big Island Southeast forecast zone and Hawaii in Hawaii County; the deadliest was on February 18, 2018, with 1 death. TALON's free flash-flood risk layer shows, every 2 minutes, how close the rain that has fallen is to what it takes to flood — turn it on under Layers.
Is TALON's radar for Discovery Harbour 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 Discovery Harbour, follow it right away — see watch vs. warning.