913
WWCN11 CWVR 202054
YELLOW WARNING - HEAT
FOR COASTAL BRITISH COLUMBIA
ISSUED BY ENVIRONMENT CANADA
AT 1:54 P.M. PDT MONDAY 20 JULY 2026.
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YELLOW LEVEL WARNING - HEAT - FOR:
=NEW= FRASER VALLEY.
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IMPACT LEVEL: MODERATE
FORECAST CONFIDENCE: HIGH
==DISCUSSION==
HUMIDEX VALUES REACHING 33 ARE EXPECTED FOR THE NEXT DAY.
THIS IS A HEAT WARNING. TEMPERATURE ARE HIGH AND THERE IS A RISK TO
PUBLIC HEALTH.
WHAT: A PERIOD OF ELEVATED TEMPERATURES IS EXPECTED.
WHEN: FROM NOW TO THURSDAY.
WHERE: FRASER VALLEY (HOTTER TEMPERATURE IS EXPECTED OVER EASTERN
SECTIONS)
ADDITIONAL INFORMATION:
A RIDGE OF HIGH PRESSURE WILL BRING ELEVATED TEMPERATURE TO THE
REGION. DAYTIME HIGHS ARE EXPECTED TO BE IN THE LOW TO MID 30S WITH
OVERNIGHT LOWS IN THE MID TO HIGH TEENS.
HIGH TEMPERATURES MAY PERSIST UNTIL THURSDAY, FOLLOWED BY A COOLING
TREND.
HEAT AFFECTS EVERYONE, BUT THE RISKS ARE GREATER FOR: SENIORS,
PEOPLE WHO LIVE ALONE, PEOPLE WITH PRE-EXISTING HEALTH CONDITIONS
SUCH AS DIABETES, HEART DISEASE OR RESPIRATORY DISEASE, PEOPLE WITH
MENTAL ILLNESS SUCH AS SCHIZOPHRENIA, DEPRESSION, OR ANXIETY, PEOPLE
WITH SUBSTANCE USE DISORDERS, PEOPLE WITH LIMITED MOBILITY.
CHECK ON FAMILY, FRIENDS AND NEIGHBOURS, WHO ARE AT HIGHER RISK,
PARTICULARLY IF THEY LIVE ALONE, TO MAKE SURE THEY HAVE A COOL
SPACE.
WATCH FOR THE EFFECTS OF HEAT ILLNESS: HEAVY SWEATING, RASH, CRAMPS,
FAINTING, HIGH BODY TEMPERATURE AND THE WORSENING OF SOME HEALTH
CONDITIONS.
KEEP YOUR HOUSE COOL. TURN ON YOUR AIR CONDITIONING (IF POSSIBLE),
BLOCK THE SUN BY CLOSING CURTAINS OR BLINDS, OR RELOCATE TO A COOLER
LOCATION SUCH AS A BASEMENT OR PUBLIC COOLING CENTRE.
FANS ALONE CANNOT EFFECTIVELY LOWER CORE BODY TEMPERATURE,
ESPECIALLY FOR OLDER ADULTS. USE FANS TO PULL IN COOLER AIR FROM
OUTDOORS, BUT IF YOU OR SOMEONE YOU CARE FOR IS EXPERIENCING
SYMPTOMS OF HEAT ILLNESS, FIND A COOLER SPACE.
FOR MORE INFORMATION:
HTTPS://WWW.CANADA.CA/EN/HEALTH-CANADA/SERVICES/CLIMATE-CHANGE-HEALTH/EXTREME-HEAT/HOW-PROTECT-YOURSELF.HTML
HTTPS://WWW.CANADA.CA/EN/HEALTH-CANADA/SERVICES/CLIMATE-CHANGE-HEALTH/EXTREME-HEAT/WHO-IS-AT-RISK.HTML
TO GET MORE INFORMATION: - CHECK THE LOCAL NEWS FOR HEALTH AND
SAFETY UPDATES. - CHECK HEALTHLINKBC ONLINE RESOURCES ABOUT
HEAT-RELATED ILLNESS AND HOW TO PROTECT YOURSELF AT
HTTPS://WWW.HEALTHLINKBC.CA/HEALTHLINKBC-FILES/HEAT-RELATED-ILLNESS.
- CALL HEALTHLINKBC AT 8-1-1 TO ASK ABOUT HEAT-RELATED ILLNESS.
ENVIRONMENT CANADA AND LOCAL MEDICAL HEALTH OFFICERS EXPECT AN
INCREASE IN HEALTH AND SAFETY RISKS FROM HEAT AND ARE ADVISING THE
PUBLIC TO TAKE PRECAUTIONS.
PLEASE CONTINUE TO MONITOR ALERTS AND FORECASTS ISSUED BY
ENVIRONMENT CANADA. TO REPORT SEVERE WEATHER, SEND AN EMAIL TO
BCSTORM(AT)EC.GC.CA OR POST REPORTS ON X USING (HASH)BCSTORM.
HTTP://WEATHER.GC.CA
END/PSPC
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