Perfect World
Cheyenne
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 Cheyenne · updated 10 hr ago · showing last good reading
Air quality
56ModerateUS AQI
PM2.5 4μg/m³PM10 5μg/m³Ozone 89μg/m³NO₂ 5μg/m³
Water monitoring
N Fk Cache La Poudre R Blw Halligan Res Nr Va Dale · 52.3 km away
35.9 ft3/sStreamflow
2.44 ftGage height
Active alerts
  • SevereFlash Flood Warning
  • SevereFlood Watch
Earthquakes · 30 days
✓ None ≥ M2.5 nearby
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 56 (Moderate). Observed Aug 14, 7:00 PM.

4.0 μg/m³PM2.5
4.6 μg/m³PM10
89.0 μg/m³Ozone
4.6 μg/m³NO₂
0.5 μg/m³SO₂
114.0 μg/m³CO

Water monitoring — nearest site

N Fk Cache La Poudre R Blw Halligan Res Nr Va Dale · 52.3 km away · 5 sites in range

35.9 ft3/sStreamflow · Aug 15, 12:55 AM
2.44 ftGage height · Aug 15, 12:55 AM

Active weather alerts2

SevereFlash Flood Warninguntil Aug 15, 1:15 AM
Flash Flood Warning issued August 14 at 4:13PM MDT until August 14 at 7:15PM MDT by NWS Cheyenne WY
Laramie, WY
SevereFlood Watchuntil Aug 15, 4:00 AM
Flood Watch issued August 14 at 11:16AM MDT until August 14 at 10:00PM MDT by NWS Cheyenne WY
Banner; Morrill; Kimball; Cheyenne; South Laramie Range Foothills; Central Laramie County; East Laramie County

Earthquakes — last 30 days0

✓ No earthquakes ≥ M2.5 within 250 km.

Superfund sites

1 active EPA Superfund (National Priorities List) sites in WY of 3 ever listed.

F.E. Warren Air Force Base
Cheyenne · NPL Site · 4 km away
Open →
See every Superfund site in WY

The state’s energy ledger

What WY’s grid runs on, its EV fleet and charging network, and where its mandate stands — from the national Energy Ledger.

Open the WY energy dossier →

Snapshot generated Aug 15, 1:06 AM (showing last good reading while refreshing). All data is public and carries no personal information.