Environmental watch

What's in the air, water, and ground around here.

Live environmental OSINT for your community, pulled from public federal feeds — the EPA, the USGS, and the National Weather Service. No account, no tracking; every number links back to its public source. Auto-refreshes about every 30 minutes.

🌎 Environmental watch

Live public data for Honolulu · updated 12 hr ago · showing last good reading

Air quality

47GoodUS AQI

PM2.5 12μg/m³PM10 21μg/m³Ozone 53μg/m³NO₂ 1μg/m³

Water monitoring

Makiki Stream At King St. Bridge, Oahu, Hi · 2.5 km away

0.69 ft3/sStreamflow

3.05 ftGage height

Active alerts

SevereFlood Watch
SevereTropical Storm Watch
ModerateTropical Cyclone Local Statement

Earthquakes · 30 days

M3.6strongest within 250 km

39 km SSE of Mākena, Hawaii

3 quakes ≥ M2.5

Superfund sites

3active in HI

Nearest: Pearl Harbor Naval Complex · 16 km →

Sources: Open-Meteo Air Quality, USGS Water Services, National Weather Service, USGS Earthquake Catalog, EPA National Priorities List. All public, no personal data.

Air quality — full readout

US Air Quality Index 47 (Good). Observed Aug 14, 3:00 PM.

12.3 μg/m³PM2.5

20.5 μg/m³PM10

53.0 μg/m³Ozone

0.8 μg/m³NO₂

0.8 μg/m³SO₂

92.0 μg/m³CO

Source: Open-Meteo Air Quality ↗

Water monitoring — nearest site

Makiki Stream At King St. Bridge, Oahu, Hi · 2.5 km away · 50 sites in range

0.69 ft3/sStreamflow · Aug 15, 12:50 AM

3.05 ftGage height · Aug 15, 12:50 AM

Source: USGS Water Services ↗

Active weather alerts3

SevereFlood Watchuntil Aug 17, 4:00 PM

Flood Watch issued August 14 at 2:44PM HST until August 17 at 6:00AM HST by NWS Honolulu HI

Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward

SevereTropical Storm Watchuntil Aug 15, 4:45 AM

Tropical Storm Watch issued August 14 at 10:38AM HST by NWS Honolulu HI

Honolulu Metro

ModerateTropical Cyclone Local Statementuntil Aug 15, 5:00 AM

Tropical Cyclone Local Statement issued August 14 at 10:54AM HST by NWS Honolulu HI

Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island North

Source: National Weather Service ↗