Lexington Weather

Lexington, Massachusetts, USA

42°F
1/11/2026 4:04pm 
  • Lexington Conditions: Few Clouds
  • Temperature: 41.7°F / 5.4°CColder 0.7°F than last hour.
  • Dew Point: 32.4°FDecreased 2.3°Fsince last hour.
  • Relative Humidity: 69%Decreased 5.0% since last hour.
  • Wind: Wind from NW NW 1 mph, 10-min avg: 1 mph, gust: 4 mph
  • Barometer: 29.60 in Steady
  • Visibility: 10 miles
  • Rain Today: 0.07 in
  •   

Air Stagnation Advisory

Issued by the National Weather Service - Portland, OR

    AIR STAGNATION ADVISORY  

North Clark County Lowlands, WA; Inner Vancouver Metro, WA

Air Stagnation Advisory issued January 11 at 12:54AM PST until January 16 at 4:00AM PST by NWS Portland OR

AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 4 AM PST FRIDAY

Areas Affected: Tualatin Valley; West Hills and Chehalem Mountains; Inner Portland Metro; West Central Willamette Valley; East Central Willamette Valley; Benton County Lowlands; Linn County Lowlands; Lane County Lowlands; North Clark County Lowlands; Inner Vancouver Metro

Urgency: Expected

Severity: Moderate

Certainty: Likely

Alert Sent: Sunday 12:54am PST

Alert Effective: Sunday 12:54am PST

Alert Expires: Monday 4:00pm PST (expect updated alert by this time)

Event Onset: Sunday 12:54am PST

Event Ends: Friday 4:00am PST

Issued by: NWS Portland OR

Details: 
...AIR STAGNATION ADVISORY NOW IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Light winds and limited air movement will lead to a period
of stagnant air conditions.

* WHERE...Central and Southern Willamette Valley, Tualatin Valley,
Portland West Hills and Chehalem Mountain, Inner Portland Metro,
North Clark County Lowlands, and Inner Vancouver Metro.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Deteriorating air quality may cause issues for people
with respiratory problems.

Information: 
State air quality agencies highly recommend that no outdoor burning
occur and that residential wood burning devices be limited as much
as possible. According to state air quality agencies, prolonged
periods of stagnant air can hold pollutants close to the ground
where people live and breathe. Check with your local burn agency for
any current restrictions in your area.

People with respiratory illness should follow their physician's
advice for dealing with high levels of air pollution during periods
of stagnant air, especially if an Air Quality Alert is in effect for
your area. To see if an Air Quality Alert is in effect for your
area, go to www.weather.gov/pqr and left-click your location on the
homepage map display. Alternatively, you could also type your
location into the search bar found on the top-left hand side of the
homepage. From there, you will see an Air Quality Alert listed at
the top if one is in effect for your location; you can click the
alert to read more details if applicable.

Meta data: 
ID: urn:oid:2.49.0.1.840.0.ebc0b2b9f98f1465d39092325b54a87a9ddcf6c6.001.1
Codes: WAZ205, WAZ206
Link: https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ebc0b2b9f98f1465d39092325b54a87a9ddcf6c6.001.1