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

ChemTrail.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

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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

SKW5545
returning

Modified Twin Turboprop

Precipitation Enhancement - Colorado

10,800 ft
259 kts
259°
Colorado
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
N808PK
active

Cessna / Piper Turboprop

Precipitation Enhancement - Wyoming

11,200 ft
128 kts
86°
Wyoming
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
AIP1542
active

Modified Twin Turboprop

Precipitation Enhancement - North Dakota

15,875 ft
259 kts
271°
North Dakota
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
N796PC
returning

Beechcraft King Air

Snowpack Enhancement - Utah Mountains

18,300 ft
247 kts
176°
Utah
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
AIP1588
active

Modified Twin Turboprop

Precipitation Enhancement - South Dakota

15,925 ft
255 kts
278°
South Dakota
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
SWA1778
returning

Modified Twin Turboprop

Precipitation Enhancement - Colorado

13,150 ft
280 kts
282°
Colorado
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
AIP1603
active

Beechcraft King Air

Precipitation Enhancement - South Dakota

15,200 ft
220 kts
278°
South Dakota
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
N898AJ
active

Beechcraft King Air

Snowpack Enhancement - Colorado Mountains

16,725 ft
247 kts
95°
Colorado
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
UAL2308
returning

Beechcraft King Air

Precipitation Enhancement - Colorado

10,525 ft
250 kts
108°
Colorado
Chemicals (3)
AgI•Silver IodideAgIO₃•Silver IodateKI•Potassium Iodide
HumanSoilWildlife
BMJ68
active

Beechcraft King Air

Hail Suppression Operations - North Dakota

11,900 ft
211 kts
268°
North Dakota
Chemicals (3)
AgI•Silver IodideNaCl•Sodium ChlorideCaCl₂•Calcium Chloride
HumanSoilWildlife
N200UW
active

Modified Twin Turboprop

Snowpack Enhancement - Wyoming Mountains

22,000 ft
258 kts
271°
Wyoming
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife
N624AK
returning

Beechcraft King Air

Sierra Nevada Snowpack Program

16,525 ft
228 kts
350°
California
Chemicals (3)
AgI•Silver IodideKI•Potassium IodideCO₂ (solid)•Dry Ice
HumanSoilWildlife

Chemicals Currently Being Dispersed

Full Database
Silver IodideAgI

Dispersed by: SKW5545, N808PK, AIP1542, N796PC, AIP1588, SWA1778, AIP1603, N898AJ, UAL2308, BMJ68, N200UW, N624AK

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...
Silver IodateAgIO₃

Dispersed by: SKW5545, N808PK, AIP1542, AIP1588, SWA1778, AIP1603, UAL2308

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...
Potassium IodideKI

Dispersed by: SKW5545, N808PK, AIP1542, N796PC, AIP1588, SWA1778, AIP1603, N898AJ, UAL2308, N200UW, N624AK

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: N796PC, N898AJ, N200UW, N624AK

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...
Sodium ChlorideNaCl

Dispersed by: BMJ68

Human: Sodium chloride is one of the most benign seeding agents. Environmental concentrations from seeding are trivial compared...
Soil: Salt from cloud seeding is generally insignificant compared to natural deposition and irrigation-related salinity. Howev...
Wildlife: Minimal animal impact. The quantities dispersed in cloud seeding are tiny relative to natural and agricultural salt sour...
Calcium ChlorideCaCl₂

Dispersed by: BMJ68

Human: CaCl₂ is more irritating than table salt but environmental concentrations from cloud seeding are extremely low. Primary ...
Soil: Calcium chloride has minimal negative soil impact at cloud seeding concentrations. Calcium can actually be beneficial to...
Wildlife: Very low risk to animals. CaCl₂ from cloud seeding adds negligible amounts to the environment compared to natural minera...

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