Active Weather
One advisory is in effect in Quebec this morning. Environment and Climate Change Canada's Quebec office has a yellow frost advisory covering the Rimouski wildlife reserve, Amqui, Matapedia, Restigouche-Carleton, and Temiscouata, in the Bas-Saint-Laurent and Gaspesie. The bulletin was issued late Tuesday evening and runs until late this morning. It describes overnight lows near zero degrees Celsius with light winds.
A note on how today's Canadian alert picture was assembled. The public alert table on weather.gc.ca is drawn by the browser and cannot be read directly, which has left gaps in this brief before. Today's alerts were read instead from Environment and Climate Change Canada's own Common Alerting Protocol bulletin feed on the Meteorological Service of Canada datamart, filtered to bulletins that are current, not cancelled, not superseded, and not expired. Alert types below are taken from those bulletins rather than inferred from a map.
A yellow advisory is the lowest of Environment Canada's alert levels. This one is a garden item rather than a safety item. If you are in the affected area and still have tomatoes, beans, squash, or herbs outside, they needed covering last night. What is left to do this morning is to check what came through and pick what is ready.
Light winds are part of why this advisory was issued. Still air lets cold settle into low ground, so the frost is often worse in a valley bottom or a hollow than on a nearby slope, even a short distance away.
The rest of the province, including Montreal, Quebec City, the Outaouais, the Saguenay, and the Cote-Nord, has no alerts in effect.
Infrastructure
No power, water, or transportation disruptions are reported anywhere in the province, and no provincial state of emergency is in effect.
We were not able to obtain an official active fire count for Quebec. The SOPFEU public fire data endpoints could not be resolved this morning and their provincial situation pages returned errors. Rather than guess at a number, the verifiable proxy is satellite hotspot detection: the Canadian Wildland Fire Information System recorded a single detection across the whole province in the past 24 hours. Whatever the official count is, thermal activity in Quebec is negligible today. The authoritative source, when it is reachable, is sopfeu.qc.ca.
Public Health
No air quality advisories or special air quality statements are in effect anywhere in Quebec.
No provincial public health advisories were found for this region. We check Environment and Climate Change Canada air quality statements and provincial emergency feeds. We do not attempt a full survey of regional health authority notices, so treat this as the absence of a province wide item rather than a clean bill of health for every local authority.
Watch Item
Nothing is developing toward an alert in the province. The frost advisory expires this morning and no successor bulletin has been issued.
The forward looking item is the first frost line moving south. It has now reached the Bas-Saint-Laurent and the Gaspesie, and over the next two to four weeks it typically works its way toward the Saint Lawrence valley and eventually the Montreal area. For anyone with a garden, that is the clock. For everyone else it is the signal to start the heating season checks.
Quebec's defining household hazard is the ice storm and the long outage that comes with it, and the preparation window for that is now rather than in January. The three that matter most are a way to stay warm without grid power, a way to cook without it, and a plan for anyone in the household who depends on powered medical equipment.
If wood heat is part of that plan, September is when a chimney sweep can still be booked. A creosote fire in a flue that was not cleaned is a far more common winter event than most people expect, and it is entirely preventable.
Explore Today
The outage that lasts days, and why the work starts in September.
Chimney and flue checks while a sweep can still be booked.
Putting up what the first frost ended, and what to keep for winter.