MediumSevere WeatherCS: 28 · v5

Frost — Lac-Etchemin area

CanadaEnvironment and Climate Change Canada

Right now

The most recent data we hold from Environment and Climate Change Canada arrived 6 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

Nothing else has been detected within 20 km in the last 24 hours.

This page covers the record dated 9 October 2026. Browse recent observations in this area:

Distance and hazards
Only these hazards

Tick none to hear about every hazard.

One message per event, not per detection. We send a confirmation first, and every message carries a link to stop them. We store the address and the place, nothing else.

Official warning

This warning has expired. Its original text remains below.

Highest level recorded: Moderate.

Level in this notice: Moderate.

Environment Canada

yellow advisory - frost - in effect

Temperatures will drop to near freezing overnight tonight. ### Damage to plants, trees, and crops is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.

This alert expired on 11 October 2026 at 15:00 UTC. It is kept here as a record.

It is one of only 2 we have recorded within 20 km of this point since 7 October 2026. The last comparable one was on 7 October 2026. One more was recorded here in the fortnight before it.

What the source measured

Environment and Climate Change Canada reported: Temperatures will drop to near freezing overnight tonight. ### Damage to plants, trees, and crops is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.

Urban PEI: 31,173 within a heuristic 50 km radius; not unique people.

How we know

One source: Environment and Climate Change Canada. Not yet confirmed by a second, independent source.

Our own score for this event is 28 out of 100.

This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.

Computed under scoring rules v5. Rows carrying other versions were judged by different rules and are not directly comparable.

Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.

This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.

Event data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)28 / 100
Legacy data-support index0.64/1
Coordinates46.5070, -70.4327
Nearest citySaint-Georges (48 km)
Urban exposure index (PEI)31.2K within 50 km
Impact tiersignificant
Timestamp2026-10-09T15:22:00.000Z
Sourcehttps://dd.weather.gc.ca/today/alerts/cap/20261011/CWUL/01/T_WOCN10_C_CWUL_202610110157_3230845336.cap
LicenceECCC Data Services End-use Licence 2.1.1 · Environment and Climate Change Canada · Grouped by area and warning; CAP severity mapped; map location derived from alert geometry. Original warning text preserved.

Physical priority index · v5. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.

Source and revision timeline

Source: cap_ca_eccc. Occurrence: 2026-10-09T15:22:00.000Z.

First archived: 2026-10-09T08:53:56.119Z. Material modification: 2026-10-11T02:09:54.161Z.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

11 retained revisions changed source fields this page does not show; the index, severity and version stayed the same.

Score breakdown

35
intensity
40
Urban PEI term
0
Scenario weight
18
Recorded reference / batch anomaly

Technical details

Eventfrost
AreaDescLac-Etchemin area
Geocodes[{"name":"layer:EC-MSC-SMC:1.0:CLC","value":"037410"},{"name":"profile:CAP-CP:Location:0.3","value":"2418035"},{"name":"profile:CAP-CP:Location:0.3","value":"2419005"},{"name":"profile:CAP-CP:Location:0.3","value":"2419010"},{"name":"profile:CAP-CP:Location:0.3","value":"2419015"},{"name":"profile:CAP-CP:Location:0.3","value":"2419020"},{"name":"profile:CAP-CP:Location:0.3","value":"2419030"},{"name":"profile:CAP-CP:Location:0.3","value":"2419037"},{"name":"profile:CAP-CP:Location:0.3","value":"2419045"},{"name":"profile:CAP-CP:Location:0.3","value":"2419050"},{"name":"profile:CAP-CP:Location:0.3","value":"2427035"},{"name":"profile:CAP-CP:Location:0.3","value":"2428030"},{"name":"profile:CAP-CP:Location:0.3","value":"2428035"},{"name":"profile:CAP-CP:Location:0.3","value":"2428040"},{"name":"profile:CAP-CP:Location:0.3","value":"2428045"},{"name":"profile:CAP-CP:Location:0.3","value":"2428053"},{"name":"profile:CAP-CP:Location:0.3","value":"2428060"},{"name":"profile:CAP-CP:Location:0.3","value":"2428065"},{"name":"profile:CAP-CP:Location:0.3","value":"2428070"},{"name":"profile:CAP-CP:Location:0.3","value":"2428075"}]
Onset2026-10-11T02:00:00-00:00
Effective2026-10-11T01:58:13-00:00
Expires2026-10-11T15:00:13-00:00
TimeBasisonset
LocalDay20261010
WarningGeometry{"polygons":[[[[-70.0295,46.4182],[-70.1677,46.3158],[-70.2317,46.2235],[-70.2576,46.2308],[-70.5837,46.3218],[-70.7388,46.4661],[-70.7041,46.4859],[-70.719,46.5023],[-70.69,46.5156],[-70.7362,46.5503],[-70.7074,46.5684],[-70.7278,46.5791],[-70.7517,46.5658],[-70.7823,46.5887],[-70.8092,46.6089],[-70.8099,46.6093],[-70.8292,46.6257],[-70.8208,46.6304],[-70.4976,46.812],[-70.483,46.8202],[-70.4706,46.8093],[-70.0519,46.4383],[-70.0295,46.4182]]]],"circles":[]}
CapTimeZoneAmerica/Toronto
CapDayBasisarea-centroid-timezone
CapSeverityModerate
DailyPeakCapSeverityModerate
CapUrgencyFuture
CapCertaintyLikely
UrgencyFuture
CertaintyLikely
Headlineyellow advisory - frost - in effect
Description Temperatures will drop to near freezing overnight tonight. ### Damage to plants, trees, and crops is possible. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to QCstorm@ec.gc.ca or post reports on social media using #QCStorm.
SenderNameEnvironment Canada

Safety information

What to do in a winter storm or extreme cold

Three things first, then what to do before, during and after. From FEMA’s Ready.gov and the US National Weather Service.

For this reportSevere Weather · Canada

  1. Stay off the roads

    Travel only if you must. If you are stuck in a car, stay in it, run the engine a few minutes an hour with the exhaust clear of snow.

    Ready.gov
  2. Heat safely

    Never heat the house with an oven, a barbecue or a generator indoors: carbon monoxide kills without warning.

    Ready.gov
  3. Watch for frostbite and hypothermia

    Numb, white or greyish skin; shivering, confusion, slurred speech. Get warm and get help.

    Ready.gov

Before, during, after. Here it is “after”.

Before · When a storm or a cold wave is forecast

  • Supplies for several days

    Water, food, medicines, torches, batteries.

  • A kit in the car

    Blankets, water, snacks, jump leads; keep the tank full.

  • Carbon monoxide alarm

    Install and test one, with the smoke alarms.

Ready.gov (FEMA)

During · In the storm or the cold

  • Layers

    Several warm layers, hat and gloves; limit time outside.

  • Shovel slowly

    Hard effort in the cold strains the heart.

  • Generators outdoors

    At least six metres from windows and doors.

Ready.gov (FEMA)

After · When it passes

  • Warm frostbite gently

    With body heat or warm (not hot) water; do not rub.

  • Warm hypothermia from the core

    Chest, neck, head and groin first, in dry blankets.

  • Check on others

    Older people, children and pets.

Ready.gov (FEMA)

Questions people ask

How do I recognise hypothermia?

Shivering, exhaustion, confusion, fumbling hands, memory loss, slurred speech, drowsiness. Get the person warm and call for help. Source: Ready.gov (FEMA).

Can I use a gas oven to heat the house?

No. Ovens, barbecues and generators indoors produce carbon monoxide, which kills without warning. Source: Ready.gov (FEMA).

Should I stay in a car stuck in snow?

Yes: it is shelter, and people are found more easily with their car. Keep the exhaust pipe clear of snow. Source: Ready.gov (FEMA).

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