Extreme Heat Watch issued June 11 at 11:42AM PDT until June 16 at 11:00PM PDT by NWS Portland OR
WHAT: Dangerously hot conditions with temperatures between 95 and
100 degrees F possible.
WHERE: Greater Portland Metro, Central Willamette Valley, Western
Columbia River Gorge, Lower Columbia River, Inner Vancouver Metro,
and East Clark County Lowlands.
WHEN: From Sunday morning through Tuesday evening.
IMPACTS: Heat related illnesses increase significantly during
extreme heat events.
ADDITIONAL DETAILS: Peak heating days will be Sunday and Monday
with the potential for a slight cool down on Tuesday. Overnight
temperatures will remain elevated Sunday night into Monday
morning, and Monday night into Tuesday morning. Night time
temperatures ranging from 60-65 degrees will lead to poor
overnight recovery with less relief. There is currently around a
10% chance of Extreme HeatRisk for Portland proper and the West
Hills on Monday, with a 25% chance of a high temperature of 100
degrees F. Conditions remain elevated on Tuesday, though
confidence is lower in regards to whether significant heat will
persist.
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Drink plenty of fluids, stay in a cool place during the heat of the
day, stay out of the sunshine, and check up on relatives and
neighbors. For those without air conditioning, use fans to keep air
moving. Keeps windows closed during the day and open at night,
unless air quality is degraded due to wildfire smoke.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Monitor the latest forecasts and warnings for updates.
If you do not have air conditioning in your home or lack shelter,
you can call 211 for assistance locating appropriate shelter from
the heat.