Cloud seeding aircraft dispersing flares over mountain range
Real-Time Monitoring

ChemTrails.app

US Cloud Seeding Operations Tracker

Track cloud seeding aircraft, monitor active programs, and explore comprehensive data on weather modification operations across the United States.

Active Flights

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Operators

0

Aircraft Types

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Chemicals

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Active Programs

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IMPORTANT

Environmental Risks

What are the known and unknown risks of spraying chemicals into our atmosphere? Explore impacts on human health, soil ecosystems, and wildlife.

Human Health Soil Impact Wildlife
Read the full risk assessment
IMPORTANT

Legal Ramifications

Cloud seeding programs operate with no public consent. Who gave them the right to spray chemicals into our skies? Explore the constitutional questions and regulatory gaps.

Civil Rights Consent Legal Gaps
Explore the legal analysis

Live Flight Tracking

Full Map

Active Flights

N492DZ
active

Beechcraft King Air

Winter Orographic Seeding - Idaho

16,875 ft
223 kts
124°
Idaho
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
UAL2356
returning

Beechcraft King Air

Precipitation Enhancement - California

10,650 ft
234 kts
282°
California
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
N903J
active

Beechcraft King Air

Sierra Nevada Snowpack Program

16,350 ft
192 kts
326°
California
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
N5090U
active

Cessna / Piper Turboprop

Precipitation Enhancement - California

10,800 ft
120 kts
33°
California
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
FLC72
active

Beechcraft King Air

Precipitation Enhancement - California

11,550 ft
212 kts
157°
California
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
N97826
active

Cessna / Piper Turboprop

Precipitation Enhancement - Colorado

10,300 ft
125 kts
208°
Colorado
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
N399AM
active

Beechcraft King Air

Snowpack Enhancement - Utah Mountains

18,000 ft
196 kts
147°
Utah
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
N48Q
returning

Beechcraft King Air

Snowpack Enhancement - Colorado Mountains

17,800 ft
225 kts
6°
Colorado
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
N54240
active

Cessna / Piper Turboprop

Sierra Nevada Snowpack Program

15,200 ft
172 kts
79°
California
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
N422CM
active

Beechcraft King Air

Sierra Nevada Snowpack Program

15,500 ft
196 kts
90°
California
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
N113RF
active

Cessna / Piper Turboprop

Sierra Nevada Snowpack Program

15,575 ft
148 kts
270°
California
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
TOG30
active

Modified Twin Turboprop

Sierra Nevada Snowpack Program

14,950 ft
256 kts
155°
California
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife

Chemicals Currently Being Dispersed

Full Database
Silver IodideAgI

Dispersed by: N492DZ, UAL2356, N903J, N5090U, FLC72, N97826, N399AM, N48Q, N54240, N422CM, N113RF, TOG30

Human: At typical cloud seeding concentrations (nanograms per liter in precipitation), silver iodide poses minimal risk to huma...
Soil: Silver deposited from cloud seeding accumulates over time. While concentrations measured near seeding areas are typicall...
Wildlife: Aquatic organisms are most sensitive to silver. Fish and invertebrates can be affected at very low concentrations. Wildl...
Potassium IodideKI

Dispersed by: N492DZ, UAL2356, N903J, N5090U, FLC72, N97826, N399AM, N48Q, N54240, N422CM, N113RF, TOG30

Human: Potassium iodide is generally safe at cloud seeding concentrations. It is widely used in medicine (thyroid protection). ...
Soil: KI has minimal soil impact. Potassium is a natural soil nutrient, and iodide levels from cloud seeding are typically wel...
Wildlife: KI is one of the safest cloud seeding additives for wildlife and livestock. Iodine is an essential nutrient, and seeding...
Dry IceCO₂ (solid)

Dispersed by: N492DZ, N903J, N399AM, N48Q, N54240, N422CM, N113RF, TOG30

Human: Dry ice is one of the safest cloud seeding agents from an environmental toxicity perspective. Primary risks are occupati...
Soil: Dry ice has essentially no negative soil impact. It sublimates to carbon dioxide, which is naturally present in soil and...
Wildlife: Dry ice is the most environmentally benign cloud seeding agent. Risks to animals are negligible outside of extremely unl...
Silver IodateAgIO₃

Dispersed by: UAL2356, N5090U, FLC72, N97826

Human: Silver iodate is more acutely hazardous than silver iodide due to its oxidizing nature. Workers handling flares face the...
Soil: Shares the soil contamination profile of silver iodide, with additional concerns from the oxidizing iodate component and...
Wildlife: Toxicity profile similar to silver iodide with additional oxidizer concerns. Most relevant for wildlife near active flar...

Aircraft Fleet

15 tracked aircraft types

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Operators

10 active companies

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Chemicals

10 seeding agents

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Programs

9 active states

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Active State Programs

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California

California Cloud Seeding Program

Snowpack enhancementPrecipitation augmentation

Colorado

Colorado Cloud Seeding Program

Snowpack enhancementWater supply augmentation

Idaho

Idaho Cloud Seeding Program

Snowpack enhancementHydroelectric water supply

Nevada

Nevada Cloud Seeding Program

Snowpack enhancementPrecipitation augmentation

New Mexico

New Mexico Cloud Seeding Program

Precipitation enhancement

North Dakota

North Dakota Cloud Modification Project

Rainfall enhancementHail suppression

Effectiveness

5-15%

Estimated seasonal precipitation increase from cloud seeding programs

Colorado River Basin

7 States

Cooperative cloud seeding program serving 40 million people

Regulation

9 States

With active, state-sanctioned cloud seeding programs in the US