Many wildfires were still burning in the US Pacific Northwest & western Canada on 25 Sep, including relatively intense wildfires in Washington State, measured by fire radiative power (yellow/orange markers) from the VIIRS sensor on @noaa.gov NOAA-21. @mparrington.bsky.social @weatherwest.bsky.social

Check out our group's recently published paper in JGR - Atmospheres on the "TEMPO Aerosol Optical Depth and Aerosol Layer Height Retrieval Algorithm"! agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Smoke from ongoing wildfires in Washington State degraded PM2.5 air quality again on 24 Sep. Daily average conditions reached Very Unhealthy (Code Purple) in Leavenworth & Wenatchee, observed by regulatory monitors (dots) & estimated by @noaa.gov satellites (shading). @saramelinda.bsky.social

Thick smoke (purple shading) from wildfires in Washington State blew northward into British Columbia, Canada yesterday 23 Sep, observed by the VIIRS sensor on the @noaa.gov NOAA-21 satellite. @saramelinda.bsky.social @mparrington.bsky.social

The ABI sensor on the @noaa.gov GOES-West satellite is observing thick smoke from ongoing wildfires in Washington State today 23 Sep. The smoke is seriously degrading PM2.5 air quality per surface regulatory monitors (orange & purple dots).

Wildfires in northwestern Washington State and southern British Columbia emitted thick smoke (purple shading) that reached into western Alberta yesterday 17 Sep, detected by the VIIRS sensor on the NOAA-20 satellite. @noaa.gov @saramelinda.bsky.social @mparrington.bsky.social

The VIIRS sensor on the NOAA-21 satellite detected a plume of thick Saharan dust (brown shading) blowing off the coast of West Africa & over the Atlantic Ocean yesterday 16 Sep. @dustycryder.bsky.social @mparrington.bsky.social

Aerosol optical depth (AOD) from the ABI sensor on the @noaa.gov GOES-East satellite observed moderately thick to very thick wildfire smoke (AOD ≥0.6) in between clouds over the US Pacific Northwest & southern British Columbia, Canada on 10 Sep.

Another day of intense burning by California's Garnet Fire spread Hazardous (Code Maroon), Very Unhealthy (Code Purple) & Unhealthy (Code Red) daily PM2.5 air quality into western Nevada on 8 Sep, observed by regulatory monitors (dots) & estimated by @noaa.gov VIIRS (shading). @usfs.bsky.social

Thick smoke from the Garnet Fire in California’s Sierra National Forest caused Very Unhealthy (Code Purple) to Unhealthy (Code Red) daily PM2.5 air quality on 7 Sep, observed by regulatory monitors (dots) & estimated by VIIRS (shading). @usfs.bsky.social @calfire.bsky.social @noaa.gov

The VIIRS sensor on the @noaa.gov NOAA-21 satellite measured intense burning of the Garnet Fire in California’s Sierra National Forest on 7 Sep, shown by the orange markers (Fire Radiative Power). The wildfire’s thick smoke blew northeast into Nevada. @calfire.bsky.social @usfs.bsky.social

The new @noaa.gov Aerosol Layer Height product from TEMPO indicates the thick wildfire smoke reaching the eastern US this morning is >2 km aloft in the atmosphere (maroon/purple/pink shading), and therefore having minimal impacts on surface air quality. @avoiland.bsky.social @mparrington.bsky.social

Yesterday’s thick, brown-colored smoke, originating from wildfires in the western US & Canada, has reached the eastern US this morning 5 Sep. Hybrid smoke detection from the TEMPO & ABI sensors shows the smoke (dark purple) as of ~13 UTC. @noaa.gov @avoiland.bsky.social @mparrington.bsky.social

The ABI sensor on the @noaa.gov GOES-East satellite is observing thick, brown-colored wildfire smoke moving southeastward over the Pacific Northwest and Central Plains of the US this afternoon 4 Sep, impacting hourly PM2.5 air quality (colored dots).

Thick smoke (red shading) from large wildfires in the US states of CA, ID, OR & WA, as well as in British Columbia, Canada, spread across parts of the western US yesterday 3 Sep, shown by aerosol optical depth from the VIIRS sensor on the @noaa.gov NOAA-21 satellite. @mparrington.bsky.social

The ABI sensor on the @noaa.gov GOES-East satellite is observing wildfire smoke degrading hourly PM2.5 air quality (colored dots) across the US Pacific NW & Upper Midwest this morning 3 Sep. @mparrington.bsky.social

Another episode of long-range wildfire smoke transport is underway. The VIIRS sensor on the @noaa.gov NOAA-20 satellite shows smoke (pink/purple) from fires in western Canada & US stretching across the continent to the Labrador Sea yesterday 1 Sep. @mparrington.bsky.social

Wildfires in the western US continued burning on 26 Aug, observed by @noaa.gov VIIRS on NOAA-20. Fire radiative power (FRP, Left) shows the fires' location & intensity, and aerosol detection (Right) indicates the fires released thick smoke (purple). @saramelinda.bsky.social @mparrington.bsky.social

Numerous wildfires in the Western US continued burning yesterday 25 Aug. UV Aerosol Index from the TEMPO satellite sensor “sees” smoke above clouds, highlighting plumes from fires in Oregon, Idaho & Wyoming (red, orange, yellow, green shading). @avoiland.bsky.social @saramelinda.bsky.social

Aerosol optical depth (AOD) from the VIIRS sensor on the @noaa.gov NOAA-21 satellite observed thick smoke (dark red shading, AOD ≥1) across the Western US on 23 Aug from numerous wildfires, particularly in Idaho, Montana & Wyoming. @saramelinda.bsky.social @sangasso.bsky.social

Smoke from the Island Creek wildfire in Idaho degraded daily PM2.5 air quality yesterday 21 Aug, with Unhealthy (Code Red) conditions near the fire & Moderate (Code Yellow) further downwind; observed by regulatory monitors (dots) & estimated from @noaa.gov VIIRS (shading). @saramelinda.bsky.social

Aerosol optical depth from the VIIRS sensor on the @noaa.gov NOAA-21 satellite observed smoke (red/orange/yellow/teal shading, AOD ≥0.5) across the Iberian Peninsula today 21 Aug from the ongoing wildfires in Portugal & Spain. @mparrington.bsky.social @pierremarkuse.bsky.social @aprados1.bsky.social

Aerosol optical depth (AOD) from the ABI sensor on the @noaa.gov GOES-East satellite observed smoke (teal/yellow/orange/red shading) from a wildfire in Broward County, FL blowing offshore near Miami, in the periphery of Hurricane Erin’s circulation, this morning 20 Aug.

VIIRS on @noaa.gov NOAA-20 satellite observed the Long Lake wildfire in Nova Scotia, Canada, yesterday 17 Aug. Fire Radiative Power (FRP, small yellow dots) indicates the intensity of burning & smoke detection (pink/purple shading) shows the smoke plume blowing northeast. @mparrington.bsky.social

This year's Amazon fire season has been relatively quiet so far, but that may be changing as VIIRS on the @noaa.gov NOAA-21 satellite observed numerous thick smoke plumes (purple) on 14 Aug from burning in Amazonas, Brazil, between Manaus & Porto Velho. @aprados1.bsky.social @sangasso.bsky.social

Aerosol optical depth from the VIIRS sensor on the @noaa.gov NOAA-20 satellite shows thick smoke (red shading) across the Pacific Northwest on 13 Aug from numerous wildfires in Washington State, Idaho & Vancouver Island, British Columbia. @saramelinda.bsky.social @mparrington.bsky.social

Aerosol detection from VIIRS on the NOAA-20 satellite highlights thick smoke plumes (purple shading) yesterday 12 Aug from the Bear Gulch Fire in the Olympic National Forest of Washington State & from a large wildfire on Vancouver Island, British Columbia. @noaa.gov @mparrington.bsky.social

Transported smoke from Canadian wildfires caused Code Red (Unhealthy) and Orange (Unhealthy for Sensitive Groups) daily PM2.5 air quality in MN, ND & SD yesterday 11 Aug. @noaa.gov satellite-estimated PM2.5 (shading) fills gaps in the AirNow PM2.5 regulatory monitor network (dots).

More wildfire smoke moved into the US Upper Midwest yesterday 10 Aug, causing Code Red (Unhealthy) daily PM2.5 air quality across ND & prompting Air Quality Alerts for today 11 Aug in MN & the UP of MI. @noaa.gov VIIRS aerosol detection highlights the thick smoke (dark purple). @avoiland.bsky.social

Southern CA wildfires: the @noaa.gov GOES-East satellite observed the beginning of the Canyon Fire along the border of Los Angeles & Ventura Counties yesterday afternoon 7 Aug, as well as the ongoing Gifford Fire near Santa Maria.

Aerosol detection from VIIRS on @noaa.gov NOAA-20 highlights the enormous extent of wildfire smoke (lavender/pink shading) over central Canada & eastern US on 5 Aug, as well as smaller plumes from wildfires in the western US, e.g. Colorado. @mparrington.bsky.social

Canadian wildfire smoke caused Code Red (Unhealthy) & Code Orange (USG) daily PM2.5 air quality on 4 Aug in the Great Lakes region of US & Canada. PM2.5 estimated from @noaa.gov satellites (shading) fills gaps in the regulatory monitor network (dots). @mparrington.bsky.social @noaacomms.noaa.gov

Thick smoke (dark red shading) from the Gifford Fire in San Luis Obispo & Santa Barbara Counties in CA blew southward to the Pacific coast yesterday 3 Aug, shown by aerosol optical depth (AOD) from VIIRS on the @noaa.gov NOAA-20 satellite.

Aerosol Optical Depth (AOD) from ABI on @noaa.gov GOES-West highlights smoke from large ongoing Southwestern US wildfires today 3 Aug: Gifford Fire in CA, Dragon Bravo Fire in AZ & Monroe Canyon Fire in UT. @mparrington.bsky.social

ABI on @noaa.gov GOES-East is observing the explosive growth of the dangerous Gifford Fire in San Luis Obispo & Santa Barbara Counties in southern CA this afternoon 2 Aug. Fire Radiative Power (FRP, yellow/orange dots) shows the location & intensity of the burning.

Very thick smoke from ongoing Canadian wildfires is pouring into the CONUS today 31 Jul, causing poor PM2.5 air quality from the Upper Midwest to New England, with the worst conditions this morning in MN, WI, MI & northern IL (red dots). @noaa.gov

To our data users: Due to problems with our center’s servers, all imagery stopped ~17:30 UTC yesterday 28 Jul on the AerosolWatch website www.star.nesdis.noaa.gov/smcd/spb/aq/.... No ETA yet on when functionality will be restored, but hopefully sometime today.

Check out this story from @noaa.gov about wildfire smoke, featuring our group's satellite aerosol products! www.nesdis.noaa.gov/news/wildfir...

Check out this great article in The Conversation by our colleague Prof Jun Wang featuring our group's new TEMPO Aerosol Layer Height product! theconversation.com/is-that-wild...

Smoke originating from wildfires in central & western Canada caused poor daily PM2.5 air quality in New England & Québec over the weekend, with the worst conditions on 26 Jul when Unhealthy (Code Red) PM2.5 occurred in Montréal QC & Montpelier VT. @mparrington.bsky.social

Total column carbon monoxide (CO) from the TROPOMI sensor on the Sentinel 5-P satellite shows the tremendous emissions from ongoing Canadian wildfires, wrapping around a large Low pressure system yesterday 23 Jul. @esaearth.esa.int

The Dragon Bravo Fire in the North Rim of Grand Canyon National Park is emitting a large, thick smoke plume (red shading) today 23 Jul, shown by aerosol optical depth from the ABI sensor on the @noaa.gov GOES-West satellite.

Thick smoke is moving over the Canadian Maritimes this morning 23 Jul, highlighted by aerosol optical depth from the ABI sensor on @noaa.gov GOES-East. The smoke originated from wildfires in central/western Canada. It is aloft in the atmosphere, not affecting surface air quality.

To our data users: Due to an issue with our center’s data ingest, near real-time GOES-East & -West ABI product images are missing/delayed this morning 23 Jul on the AerosolWatch website www.star.nesdis.noaa.gov/smcd/spb/aq/.... IT is investigating the causes. We'll keep you updated.

Another intrusion of Canadian wildfire smoke is degrading PM2.5 air quality this morning 21 Jul in the Great Lakes & Northeast US. The smoke is moving in behind a cold front. 1-hour average PM2.5 is as high as 50-60 ug/m3 in southern WI & northern IL (orange dots). @noaa.gov

Aerosol detection smoke mask from the VIIRS sensor on the @noaa.gov NOAA-20 & SNPP satellites highlights smoke (purple/magenta shading) across Canada on 17 Jul from the ongoing wildfires in the central and western regions of the country. @mparrington.bsky.social

To our data users: Near real-time imagery stopped early this morning 17 Jul on the AerosolWatch website www.star.nesdis.noaa.gov/smcd/spb/aq/.... We are working to return the site to normal operation as soon as possible.

Aerosol optical depth from the VIIRS sensor on the NOAA-20 satellite observed moderate to thick smoke from several wildfires in the Pacific Northwest on 16 Jul, including the Cram Fire in Oregon & the Green Fire in northern California. @noaa.gov @noaacomms.noaa.gov

Lingering transported wildfire smoke pushed daily PM2.5 air quality to the Code Orange (USG) to Yellow (Moderate) range along the eastern US-Canada border yesterday 15 Jul, per estimates from @noaa.gov satellites (shading) & observed by regulatory monitors (dots). @noaacomms.noaa.gov

Transported smoke from wildfires in western/central Canada caused poor PM2.5 air quality across the Great Lakes region of the US & Canada yesterday 14 Jul, estimated from @noaa.gov satellites (shading) & observed by regulatory monitors (dots). @noaacomms.noaa.gov