PyroCb in British Columbia

On 16  May a pyroCb formed in British Columbia (~56 N, ~122W). GOES-15 detected the smoke plume and pyroCb cloud, as well as the fire hot spot. Starting at 22:00 UTC on 16 May, the animation below shows visible (.63 μm) on the right and shortwave IR (3.9 μm) on the left (click image to play animation). In the shortwave IR images the black pixels indicate very hot IR brightness temperatures exhibited by the fire source region.

GOES-15 0.63 µm visible channel (right) and 3.9 µm shortwave IR channel images (left) (click to play animation)

GOES-15 0.63 µm visible channel (right) and 3.9 µm shortwave IR channel images (left) (click to play animation)

In addition, using GOES-15 10.7 μm IR channel the cloud-top IR brightness temperature could be found. The animation below, starting at 22:00 UTC on 16 May, shows the brightness temperature for the pyroCb is -53ºC around 00:05 UTC on 17 May (lime green color enhancement).

GOES-15 10.7 µm IR channel images (click to play animation)

GOES-15 10.7 µm IR channel images (click to play animation)

OMPS AI index images (courtesy of Colin Seftor) shows the transport of smoke on 16 May and 17 May. On 16 May the max AI index of 8.4 at 56.84 N 110.14 W, which is just west of the spot of the pyroCb.

OMPS Aerosol Index image on 16 May (click to enlarge)

OMPS Aerosol Index image on 16 May (click to enlarge)

On 17 May the max AI index of 14.0  at 59.09 N 94.36 W, which is northeast of the pyroCb.

OMPS Aerosol Index image on 17 May (click to enlarge)

OMPS Aerosol Index image on 17 May (click to enlarge)

In addition, the image below on 17 May is a VIIRS image with hotspots detection on the left and OMPS AI overlay on the right (courtesy of Colin Seftor) .

VIIRS hotspot detection (left) and OMPS AI overlay (right) on 17 May (click to enlarge)

VIIRS hotspot detection (left) and OMPS AI overlay (right) on 17 May (click to enlarge)

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