@nplareau

Prof. of Atmos Sci. @unevadareno. Mountain WX, Wildfire Plumes, Backcountry Skiing, Frontcountry Dadding. Formerly:@SJSUmeteorology @UUtah @Livermore_Lab @MWObs

 Truckee, CA
scholar.google.com/citations?user=UGaGnAgAAAAJ&hl=en
Joined December 2009
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Does this mean the super El Niño has arrived at my house? ;) #Truckee
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Playing around with some visualizations: Here is a volume rendering of one of the plumes we measured this summer with the @wildfirecenter's Ka-Band Doppler radar during @NASA's #INSPYRE. This was the McCully Fire in Oregon.
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And here is a narrow pyroconvective plume from the Widemouth-2 Fire in Utah on 8/7/2026:
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Numerous new lightning starts in the Sierra... some of which can be inferred from the AA plane's recon paths. Hope they can hit these before the get established.
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Fair bit of lightning on dry Sierra fuels. Not a situation I'm wild about. #CAfire
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Radar reconstruction of the #BullFire plume near #Reno, NV. The data reveal repeated pulses of deep plume development, ending abruptly when the fire burned into an earlier burn scar.
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The junction between the #BullFire and the earlier (8/22-23) #HawkFire has now mostly been made, substantially reducing growth potential.
Neil Lareau
@nplareauOct 3
The #BullFire is going on another run into a region of heavier fuels. The #HawkFire perimeter (purple) still limits spread to the east, but there could be a pretty good push of continued high intensity fire before sunset.
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The #BullFire is going on another run into a region of heavier fuels. The #HawkFire perimeter (purple) still limits spread to the east, but there could be a pretty good push of continued high intensity fire before sunset.
Neil Lareau
@nplareauOct 2
Lots of impressive fire behavior on the #BullFire. Been a year in #Reno...
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Lots of impressive fire behavior on the #BullFire. Been a year in #Reno...
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#Pileus clouds forming atop #pyrocumulus were observed during #INSPYRE. These clouds are indicative of rapidly growing convection linked to intense fire. Co-located radar observations reveal the powerful updrafts (~20 m/s) driving their formation. science.nasa.gov/?p=1422768 via @NASA
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#AngelIsland Rx Fire with plume punching through the shallow marine layer.
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Stunning pyro-convective development from the new #FlintFire in SW ID. share.watchduty.org/i/117156…
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Radar reconstruction of today's (8/22) plume development from the #HawkFire in Reno, NV. Notable transition to a hydraulic like flow late in the day (~00 UTC) linked to dangerous run into town. We were conducting on-site lidar scans during the transition.
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Part of our NASA #INSPYRE program is aimed at measuring plume rise processes triggering pyroCu/Cb. Here are some data from the @wildfirecenter scanning Ka-Band radar during the Widemouth fire showing upright plume development with vigorous updrafts transitioning to ice/cloud aloft.
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Here is the corresponding visible imagery, which shows the #pyrocumulus cloud in exquisite detail.
Neil Lareau
@nplareauAug 13
Our NASA #INSPYRE project captured extreme fire spread and pyroCu development on the #SandCreekFire in #MT on 8/11. MASTER imagery from the #ER2 blends IR and other channels to reveal the rapidly evolving fire front, smoke plume, and developing pyrocloud. Data processed by Roseanne Dominguez.
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Our NASA #INSPYRE project captured extreme fire spread and pyroCu development on the #SandCreekFire in #MT on 8/11. MASTER imagery from the #ER2 blends IR and other channels to reveal the rapidly evolving fire front, smoke plume, and developing pyrocloud. Data processed by Roseanne Dominguez.
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Neil Lareau retweeted
Meteopool@meteopoolJul 23
[23/July/2026] Current #Wildfires in #France/#Bordeaux as seen by our 3D weather radar product, viewed from North to south. Aktuelle #Waldbrände in #Frankreich in unserem 3D Wetterradar, von Nord nach Süd betrachtet. meteopool.org #wildfire #smoke #rauch #waldbrand
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Terrain-wind alignment yields explosive fire growth. From the bottom to the top in <15 minutes. Can't outrun that. #OhioFire near Ketchum, ID.
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