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EXERCISE INTRODUCTION

In preparation for the exercise, please watch the two short videos below and review other key details.

Exercise Briefing 

What to expect and how to prepare

What's happening right now

Situation Recap

NEWS & SOCIAL MEDIA

This section brings together the latest news, social media updates, and weather. Click each item for more details.

Major power outage hits Southern Ontario and Northeastern U.S. Officials cite software issue as restoration timelines remain unclear.

power-grid-station-electrical-distributi
BREAKING

Southern Ontario enters its third day of a widespread power outage, officials warn that the cause of the outage has not yet been confirmed.

Read Full Story
Ottawa

NATIONAL

Federal, provincial and municipal governments continue response efforts as the widespread power outage enters third day.

Image by Berkay Gumustekin

LOCAL

As much of the GTA enters its third day without electricity, Toronto has settled into an unfamiliar rhythm.

chart-stock-market-graph-invest-diagram-tradi-2026-03-25-00-50-30-utc.jpg

Canadian and U.S markets closed lower on Friday following the widespread power outage.

FINANCIAL

Traffic Jam

SPECIALTY

As the widespread power outage enters its third day, thousands of GTA residents are temporarily leaving the city in search of reliable power and  internet access.

Weather Forecast

Monday

SUN.png
22° 17°

Tuesday

SUN-CLOUD.png
24° 18° 

Wednesday

SUN-CLOUD.png
21° 16°
city-of-toronto-logo-png_seeklogo-445835.png

City of Toronto

@CityToronto

City services continue operating under emergency procedures. Residents are encouraged to limit unnecessary travel and conserve fuel. Community centres and libraries with power remain open, offering device charging, washrooms and Wi-Fi where available.

💬 24  â—‰ 1.2K

10:00 PM - Aug 23

TorotnoHydro-X-Logo.png

Toronto Hydro

@TorontoHydro

We continue working with provincial partners to stabilize the electrical system. The cause of the outage remains under investigation. There is currently no estimated timeline for widespread restoration.

9:40 PM - Aug 23

💬 20  â—‰ 1.3K

TTC-LOGOV0.2.png

TTC

@TTC-Operations

TTC subway service is suspended across affected areas. Buses continue on a reduced schedule, subject to congestion, fuel availability and staffing. TTC also has shuttle buses running along subway routes to support criterial services, also operating on a reduced service level. All TTC fares are free at this time. 

💬 19  â—‰ 2K

9:30 PM - Aug 23

MetroLinx-Icon.webp

Metrolinx

@Metrolinx

GO Transit rail service is suspended across most affected areas. GO Bus service continues on a reduced schedule, subject to road conditions and fuel availability.

💬 24  â—‰ 1.2K

9:27 PM - Aug 23

Screenshot 2026-07-27 222858.png

@Pearson

Pearson Airport

9:25 PM - Aug 23

Toronto Pearson continues operating under emergency power and contingency procedures. Airlines continue to experience delays and cancellations. Passengers should check directly with their airline before departing for the airport.

💬 40  â—‰ 1.2K

Screenshot 2026-07-30 091117.png

Emergency Management Ontario

@EMO

9:22 PM - Aug 23

Provincial coordination continues with municipalities, utilities and critical infrastructure partners. Residents are encouraged to conserve fuel, limit unnecessary travel, check on vulnerable family members and neighbours, and monitor official sources for updates.

💬 4  â—‰ 1K

Girl Playing Trumpet

Sarah M

@Sarah.M

Honestly... Toronto is suprisingly calm tonight. Everyone on our street is sitting outside chatting instead of watching TV. #PowerOutage

💬 4  â—‰ 1K

9:15 PM - Aug 23

Woman on Wooden Stairs

Muskoka Mom

@MuskokaMom

Definitely more people in town than a normal August weekend. Grocery store was packed this morning and every coffee shop seemed full.

💬 4  â—‰ 1K

9:15 PM - Aug 23

Weather Forecast

Monday

SUN.png
22° 17°

Tuesday

SUN-CLOUD.png
24° 18° 

Wednesday

SUN-CLOUD.png
21° 16°
city-of-toronto-logo-png_seeklogo-445835.png

City of Toronto

@CityToronto

City services continue operating under emergency procedures. Residents are encouraged to limit unnecessary travel and conserve fuel. Community centres and libraries with power remain open, offering device charging, washrooms and Wi-Fi where available.

💬 24  â—‰ 1.2K

10:00 PM - Aug 23

TorotnoHydro-X-Logo.png

Toronto Hydro

@TorontoHydro

We continue working with provincial partners to stabilize the electrical system. The cause of the outage remains under investigation. There is currently no estimated timeline for widespread restoration.

💬 20  â—‰ 1.3K

9:40 PM - Aug 23

TTC-LOGOV0.2.png

TTC

@TTC-Operations

TTC subway service is suspended across affected areas. Buses continue on a reduced schedule, subject to congestion, fuel availability and staffing. TTC also has shuttle buses running along subway routes to support criterial services, also operating on a reduced service level. All TTC fares are free at this time. 

💬 19  â—‰ 2K

9:30 PM - Aug 23

MetroLinx-Icon.webp

Metrolinx

@Metrolinx

GO Transit rail service is suspended across most affected areas. GO Bus service continues on a reduced schedule, subject to road conditions and fuel availability.

💬 24  â—‰ 1.2K

9:27 PM - Aug 23

Screenshot 2026-07-27 222858.png

Pearson Airport

@Pearson

Toronto Pearson continues operating under emergency power and contingency procedures. Airlines continue to experience delays and cancellations. Passengers should check directly with their airline before departing for the airport.

💬 40  â—‰ 1.2K

9:25 PM - Aug 23

Screenshot 2026-07-30 091117.png

Emergency Management Ontario

@EMO

Provincial coordination continues with municipalities, utilities and critical infrastructure partners. Residents are encouraged to conserve fuel, limit unnecessary travel, check on vulnerable family members and neighbours, and monitor official sources for updates.

💬 4  â—‰ 1K

9:22 PM - Aug 23

Girl Playing Trumpet

Sarah M

@Sarah.M

Honestly... Toronto is suprisingly calm tonight. Everyone on our street is sitting outside chatting instead of watching TV. #PowerOutage

💬 4  â—‰ 1K

9:15 PM - Aug 23

Woman on Wooden Stairs

Muskoka Mom

@Muskoka.Mom

Definitely more people in town than a normal August weekend. Grocery store was packed this morning and every coffee shop seemed full.

💬 4  â—‰ 1K

9:15 PM - Aug 23

SM

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BB

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CC

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MF

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CG

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AH

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MI

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GL

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JP

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DS

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TW

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SC

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YOUR MESSAGES

Select a participant to view their emails, messages, calls and other internal communications.

The following optional content is available for those who would like additional context. It is not required reading before the exercise.

Optional Content Below

Optional Content Below

The following optional content is available for those who would like additional context. 

POWER OUTAGE - IMPACTED AREAS

This interactive map shows the areas currently affected by power outages. Click each location for more details.

KEY ASSUMPTIONS

This section outlines key scenario facts and assumptions.

Transportation

united-states-and-canada-flags-merged-on-textured-2026-05-13-18-55-21-utc.jpg

Status - Active

Canada–U.S. land border crossings remain open but experience significant delays. Commercial traffic and critical goods are prioritized.

high-speed-train-on-the-train-station-at-sunset-in-2026-01-06-08-58-48-utc.jpg

Regional bus services continue on reduced schedules. Highways remain open but experience significant congestion and delays.

Status - Active

airplane-ascending-into-a-clear-blue-sky-2026-03-09-05-17-22-utc.JPG

Status - Active

​Major airports remain operational but experience significant delays and flight cancellations.

Government Services

a-firefighter-in-full-protective-gear-takes-a-brea-2026-03-26-23-58-26-utc.jpg

Status - Active

Emergency services remain operational across affected regions but are focused on priority incidents. Response times are significantly longer than normal.

legislative-assembly-of-ontario-at-queens-park-at-2026-05-08-18-23-20-utc.jpg

Governments remain operational, with resources focused on emergency response and essential services.

Status - Active

security-guard-monitoring-cctv-cameras-and-using-w-2026-03-09-02-51-49-utc.jpg

Toronto Police increase patrols across the city and encourage residents to avoid unnecessary travel, report suspicious activity and use 911 only for emergencies.

Status - Active

Infrastructure

power-grid-station-electrical-distribution-statio-2026-03-19-23-44-01-utc.jpg

Status - Active

Toronto Hydro provides regular restoration updates, prioritizes critical infrastructure and advises residents to prepare for continued outages.

tall-communication-towers-against-cloudy-blue-sky-2026-03-17-00-00-29-utc.JPG

Status - Active

Cellular networks remain operational but experience congestion, intermittent outages and reduced coverage.

shipyard-cargo-container-sea-port-freight-forwardi-2026-03-17-05-45-04-utc.jpg

Supply chains remain operational but experience significant delays, with critical goods prioritized over non-essential deliveries.

Status - Active

Financial Services

young-bank-teller-assisting-middle-aged-caucasian-2026-04-07-18-23-34-utc.jpg

Retail banking remains operational but degraded. Many branches are closed or operating with reduced service.

Status - Active

online-payment-with-phone-and-card-on-laptop-2026-01-07-07-10-53-utc.jpg

Status - Active

​Electronic payments generally remain available but experience intermittent disruptions and transaction failures.

bank-card-is-inserted-into-the-atm-2026-01-08-05-33-37-utc.jpg

Cash becomes increasingly difficult to obtain as many ATMs become unavailable or run out of cash.

Status - Active

digital-stock-market-listing-on-a-tablet-screen-2026-03-24-23-38-50-utc.jpg

Status - Active

Financial markets remain fully operational but experience elevated volatility as investors respond to ongoing uncertainty and infrastructure disruptions.

Personal Impact

dramatic-colorful-sky-during-approaches-spring-sto-2026-03-23-23-51-10-utc.jpg

Status - Active

The heat wave has ended, with daytime temperatures expected to remain in the low 20s°C and cooler overnight throughout the outage. No significant weather-related impacts are expected.

group-collaborating-on-strategy-in-bright-office-s-2026-03-09-06-05-05-utc.jpg

Status - Active

Many businesses operate with reduced staffing, while others temporarily close offices or shift employees to remote work where possible.

view-of-vegetable-counter-in-supermarket-fruits-a-2026-03-17-00-00-45-utc.jpg

Status - Active

​Grocery stores remain operational where possible, but food and essential supplies become increasingly limited throughout the outage.

caucasian-young-woman-teacher-playing-guitar-with-2026-03-24-21-52-23-utc.jpg

Many summer camps and childcare programs are cancelled or operating at reduced capacity, resulting in workforce availability challenges.

Status - Disabled

male-janitor-in-uniform-cleans-a-trash-can-in-the-2026-03-19-02-22-07-utc.jpg
black-and-white-faucet-with-running-water-2026-03-09-22-26-31-utc.jpg

Status - Disabled

Waste collection services experience delays and localized service disruptions throughout the incident.

Status - Active

Municipal drinking water remains safe and available throughout the incident.

Water & Sanitation

Public Health

Hospital Staff Interaction

Status - Active

Hospitals remain operational but experience increased demand and reduced non-urgent services.

hospital-sign-in-letters-on-the-outside-2026-03-24-00-28-28-utc.jpg

Hospitals remain operational, although some facilities experience localized service disruptions due to generator, fuel and other operational challenges.

Status - Active

KEY ASSUMPTIONS

This section outlines key scenario facts and assumptions.

Transportation

Image by Mitchell Johnson
  • TTC subway service is suspended. 

  • TTC shuttle buses are operating along subway routes.

  • TTC buses continue operating on a reduced contingency schedule.

  • Go Rail service is suspended across most affected areas.

  • GO Bus service continues on a reduced contingency schedule.

high-speed-train-on-the-train-station-at-sunset-in-2026-01-06-08-58-48-utc.jpg
  • Regional transportation networks remain operational but are significantly disrupted.

  • Municipal transit agencies are operating reduced contingency bus services where possible.

  • Rail services are largely suspended.

  • Highways remain open but are experiencing severe congestion.

airplane-ascending-into-a-clear-blue-sky-2026-03-09-05-17-22-utc.JPG
  • Major airports, including Toronto Pearson, remain operational using backup power and contingency procedures.

  • Flight schedules are significantly disrupted.

  • Delays and cancellations are common.

dramatic-colorful-sky-during-approaches-spring-sto-2026-03-23-23-51-10-utc.jpg
group-collaborating-on-strategy-in-bright-office-s-2026-03-09-06-05-05-utc.jpg
view-of-vegetable-counter-in-supermarket-fruits-a-2026-03-17-00-00-45-utc.jpg
caucasian-young-woman-teacher-playing-guitar-with-2026-03-24-21-52-23-utc.jpg
  • The extreme heat wave has ended.

  • Temperatures remain cool and seasonable, with highs in the low 20s°C.

  • No severe weather is forecasted.

  • Loss of air conditioning may cause discomfort but no widespread health emergency.

  • Business operations are significantly disrupted.

  • Many offices are closed or operating with reduced staff.

  • Remote work continues where possible, but productivity is limited.

  • Essential businesses remain open at reduced capacity.

  • Grocery stores remain open where power and staffing allow.

  • Perishable food supplies are increasingly limited.

  • Essential items face high demand and shortages.

  • Purchase limits are in place at many stores.

  • Many camps and childcare programs are cancelled or operating at reduced capacity.

  • Power outages, transportation issues and staffing shortages are causing disruptions.

  • Childcare challenges are increasing employee absenteeism.

Personal Impact

Financial Services

young-bank-teller-assisting-middle-aged-caucasian-2026-04-07-18-23-34-utc.jpg
  • Retail banking remains operational but degraded.

  • Online and mobile banking may be slow or intermittent.

  • Many branches are closed or operating reduced hours.

online-payment-with-phone-and-card-on-laptop-2026-01-07-07-10-53-utc.jpg
  • Electronic payments remain operational but may be intermittent.

  • Card payments work where power and connectivity are available.

  • Transaction failures are more frequent than normal.

bank-card-is-inserted-into-the-atm-2026-01-08-05-33-37-utc.jpg
  • Cash access becomes increasingly limited.

  • Many ATMs are offline or out of cash.

  • Operational ATMs face long lines and withdrawal limits.

digital-stock-market-listing-on-a-tablet-screen-2026-03-24-23-38-50-utc.jpg
  • Global financial markets remain open but highly volatile.

  • Market infrastructure is operational as investors shift toward bonds, gold and defensive sectors.

  • Credit and liquidity markets remain functional as regulators continue monitoring conditions.

  • Canada’s financial system remains stable and resilient and attention remains focused on outage duration and economic impacts.

Infrastructure

power-grid-station-electrical-distribution-statio-2026-03-19-23-44-01-utc.jpg
  • Natural gas service remains operational and facilities with natural gas backup generation are also operational.

  • Toronto Hydro restoration efforts continue 24/7.

  • Critical infrastructure and public safety are prioritized.

  • Stay clear of downed power lines and monitor official updates.

tall-communication-towers-against-cloudy-blue-sky-2026-03-17-00-00-29-utc.JPG
  • Cellular networks remain operational but congested.

  • Calls, texts and mobile data may be slow or intermittent.

  • Coverage may decline as backup power is exhausted.

shipyard-cargo-container-sea-port-freight-forwardi-2026-03-17-05-45-04-utc.jpg
  • Supply chains and freight remain operational but disrupted.

  • Fuel shortages, congestion and staffing issues are delaying deliveries.

  • Critical supplies are prioritized.

  • Non-essential goods face delays and localized shortages.

Water & Sanitation

male-janitor-in-uniform-cleans-a-trash-can-in-the-2026-03-19-02-22-07-utc.jpg
  • Waste, recycling and organics collection continue where possible.

  • Staffing and transportation issues are causing delays.

  • Some areas face temporary service suspensions.

black-and-white-faucet-with-running-water-2026-03-09-22-26-31-utc.jpg
  • Municipal drinking water remains operational.

  • Treatment and distribution continue on backup power where needed.

  • Tap water remains safe to drink.

  • No widespread service interruptions or boil water advisories are expected.

Public Health

Hospital Staff Interaction
  • Hospitals remain operational on backup power.

  • Emergency departments face higher volumes and longer waits.

  • Elective and non-urgent services are reduced or postponed.

hospital-sign-in-letters-on-the-outside-2026-03-24-00-28-28-utc.jpg
  • Hospitals remain operational on backup power.

  • Some facilities face localized disruptions from generator failures or fuel delays.

  • Temporary service reductions and patient transfers may occur.

  • No widespread healthcare system failure is expected.

  • Provincial authorities are coordinating repairs, fuel and resources.

That's all for now. Additional links and updates may be shared as the exercise progresses.

Situation
Dashboard

For the purpose of the exercise please assume it is:

Sunday August 23 at 10:00 PM 

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