Neil Lareau @neillareau.bsky.social · 03/10/2026Radar 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. 1297
Neil Lareau @neillareau.bsky.social · 29/09/2026#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 071
Neil Lareau @neillareau.bsky.social · 23/08/2026Radar 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 onsite lidar scans during the transition. 13819
Neil Lareau @neillareau.bsky.social · 13/08/2026Here is the corresponding visible imagery, which shows the #pyrocumulus cloud in exquisite detail. 041
Neil Lareau @neillareau.bsky.social · 13/08/2026NASA’s #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. 0146
Neil Lareau @neillareau.bsky.social · 14/07/2026Glut of fire across far northern MN and Ontario today, culminating in a pulse of deep pyroCb complete with lightning. Outlier weather yield outlier fires. 0102
Neil Lareau @neillareau.bsky.social · 18/06/2026Beautiful Pileus clouds forming over convective towers yesterday near #Truckee. 030
Reposted by Neil LareauWisc-Satellite @wisc-satellite.bsky.social · 29/05/2026A thermal signature of the cloud resulting from the #BlueOrigin #NewGlenn rocket explosion at Cape Canaveral, Florida (shortly after sunset on 28 May) was evident in #GOESEast (#GOES19) ABI Infrared spectral bands 07-16. 1169
Neil Lareau @neillareau.bsky.social · 29/05/2026I wonder what the "origin" of all this "blue" is on the correlation coefficient? 030
Neil Lareau @neillareau.bsky.social · 22/05/2026Fun day yesterday getting our UNR atmospheric sciences crew fire-line qualified with the help of Truckee Meadows Fire Protection District. 040
Neil Lareau @neillareau.bsky.social · 23/04/2026The birth of a family of supercells in eastern Nebraska: #NEwx (testing to see if gifs work yet...) 031
Neil Lareau @neillareau.bsky.social · 21/04/2026Flattered to have the Editor's highlight featuring my recent spotting paper: Weather Radar Data Reveal the Dynamics of Rapidly Spreading Wildfires eos.org/editor-highl...eos.orgWeather Radar Data Reveal the Dynamics of Rapidly Spreading Wildfires - EosNew research demonstrates the use of operational weather radar measurements to track long-range ember fallout and rapid spread of intense wildfires. 0173
Neil Lareau @neillareau.bsky.social · 17/03/2026Extreme wildfire spread isn’t just wind-driven. We show the Camp Fire’s explosive growth came from plume-coupled spotting: embers lofted, transported, and deposited in organized zones 5–10+ km ahead, igniting new fire fronts. agupubs.onlinelibrary.wiley.com/doi/epdf/10.... 1197
Neil Lareau @neillareau.bsky.social · 13/03/2026Fires, plumes, and wind shifts. Stay clear of the south flank of these fires in Nebraska, which will open up as the front surges through. 0126
Neil Lareau @neillareau.bsky.social · 15/11/2025New paper out! We document tornado-strength (98 mph) counter-rotating vortices that developed within California’s 2021 #DixieFire. These fire-generated vortices reshaped the fire front and spread, posing immediate risks to firefighters and civilians. doi.org/10.1175/MWR-... 1409
Reposted by Neil LareauAnthony Edwards @edwardsanthonyb.bsky.social · 30/07/2025Water levels are fluctuating rapidly as the tsunami hits Midway Island, 1,200 miles northwest of Hawaii... wow. 410443
Neil Lareau @neillareau.bsky.social · 02/07/2025Diverting money from science funding for immigration crack downs is dumb. Science funding provides enormous ROI. Deporting & intimidating unauthorized immigrants undermines the functioning and growth of our economy. In other words, you spend money to lose money, or negative ROI. 040
Reposted by Neil LareauMike Flannigan @mikeflannigan.bsky.social · 26/06/2025Updated figure from Jain et al. showing global extreme fire weather trends since 1979. Metrics are global 95th percentile of annual Fire Weather Index (FWI), Initial Spread Index (ISI) and the Vapor Pressure Deficit (VPD). The trend is clear - we are seeing more extreme fire weather due to warming. 24521
Neil Lareau @neillareau.bsky.social · 25/06/20251/n: Still trying to understand the Lake Tahoe boating disaster from this past weekend. I like letting the data lead. Lets start with the radar, where I've added a red line annotating the clear, coherent wind shift associated with the front sagging south across the region. 1245
Reposted by Neil LareauWisc-Satellite @wisc-satellite.bsky.social · 16/06/2025Visible & Infrared images from #GOES19/#GOESEast showed that the #TroutFire in New Mexico produced a #pyrocumulonimbus (pyroCb) cloud on 14 June - the first pyroCb in the US for the 2025. More on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-bl... H/T @neillareau.bsky.social 073
Reposted by Neil LareauMark Parrington @mparrington.bsky.social · 04/06/2025Total estimated emissions of 2025 Canadian #wildfires to 03/06 at ~50 MtC, comparable to 2023 record over same period, and increasing. #CopernicusAtmosphere Global Fire Assimilation System data based on MODIS🛰️ active fire obs ads.atmosphere.copernicus.eu/datasets/cam... @copernicusecmwf.bsky.social 24625
Neil Lareau @neillareau.bsky.social · 03/06/2025As noted by NRL's Mike Fromm, another exceptional #PryoCB today in Saskatchewan this afternoon. 074
Reposted by Neil Lareaucira-csu.bsky.social @cira-csu.bsky.social · 30/05/2025Robust plumes of pyrocumulonimbus billow from wildfires in Alberta. These were among many wildfires exhibiting extreme behavior yesterday across Canada. 14922
Reposted by Neil LareauMike Flannigan @mikeflannigan.bsky.social · 25/05/2025Massive smoke plumes from fires in Saskatchewan and Manitoba this evening. GOES East-geocolor loop below. 23411
Neil Lareau @neillareau.bsky.social · 19/05/2025Did you know that in 2021 the Dixie Fire yielded spot fires 10 miles from the fire front? Want to know how? My new paper examines the plume dynamics driving these extreme spotting events: agupubs.onlinelibrary.wiley.com/doi/10.1029/... 17022
Reposted by Neil LareauMike Flannigan @mikeflannigan.bsky.social · 09/05/2025Active fires in Saskatchewan this afternoon. Mid-ir shows some very active fires (red/bright white) and a possible pyrocb (fire generated thunderstorm) in the GOES-West Geocolor. 0213
Neil Lareau @neillareau.bsky.social · 23/04/2025Impressive fire activity today in New Jersey. Here is a 3D radar view of the plume structure from the #JonesFire during its peak fire intensity. 37521
Neil Lareau @neillareau.bsky.social · 03/04/2025Cool example of preferential convection initiation on the snowy-to-snow-free boundary on the west slopes of the Sierra. Note the deeper cloud formation over the heated land as opposed to the snowpack (green). 060
Neil Lareau @neillareau.bsky.social · 02/04/20252+ ft of beautiful snow yesterday densified overnight, yielding excellent skiing this morning. Just wish I had more time!! 1210
Neil Lareau @neillareau.bsky.social · 27/03/2025Been an amazing day of #ShastaCountyConvergenceZone (SCCZ) activity. 140
Neil Lareau @neillareau.bsky.social · 17/03/2025Classic early spring inter-mountain frontogenesis today: (1) Satellite image, (2) surface temperatures and rough diagram of the confluent region, (3) cross front diabatic heating differences helping to sharpen the front, (4) frontogenesis function (purple contours) from GFS. 140
Neil Lareau @neillareau.bsky.social · 14/03/2025Fires (black dots) and plume (radar/green/blue) popping up amidst the blowing dust in Texas and Oklahoma. Could be ugly when the wind shift hits... 031
Reposted by Neil LareauUC Berkeley Central Sierra Snow Lab @cssl.bsky.social · 13/03/20253/13/2025 10am Update: We had 27" (68.5 cm) of #snow accumulation in the last 24 hours, which brings our storm total to 27.8" (70.5 cm). Light to moderate snow will deliver a few more inches today and another significant storm will move in tomorrow morning. #CAwx #CAwater 2496
Reposted by Neil LareauTimothy McBride @mcbridetd.bsky.social · 10/03/2025Costs of child care now outpace college tuition in 38 states, analysis finds missouriindependent.com/briefs/costs...missouriindependent.comCosts of child care now outpace college tuition in 38 states, analysis finds • Missouri IndependentThe cost of child care now exceeds the price of college tuition in 38 states and the District of Columbia, according to a new analysis conducted by the Economic Policy Institute. The left-leaning thin... 15326
Reposted by Neil LareauMike Flannigan @mikeflannigan.bsky.social · 04/03/2025Come join our growing wildfire fire team at TRU. We are hiring a new assistant/associate fire professor in Arts & Tourism. Closes 26 March 2025 tru.hua.hrsmart.com/hr/ats/Posti...tru.hua.hrsmart.com Deltek Talent Management - JS Job Details 01414
Reposted by Neil LareauEzra David Romero @climatedaddykqed.bsky.social · 28/02/2025SCOOP: 2 NWS Bay Area employees were fired today. They were on their probationary period: A meteorologist & an administrative support assistant. "We already have a number of vacancies, so this will affect us in running 24-hr shifts." Dalton Behringer, the office's union steward @kqednews.kqed.org 12614
Reposted by Neil LareauMike Flannigan @mikeflannigan.bsky.social · 24/02/2025In 2024 a significant portion of BC area burned was due to 2023 fires that survived the winter (see figure on the left side). The current fire situation is on the right side wildfiresituation.nrs.gov.bc.ca/map and some are 2023 fires. First time I have seen fires survive two winters in Canada. 13513
Reposted by Neil LareauAnthony Edwards @edwardsanthonyb.bsky.social · 15/02/2025I'm a reporter at the SF Chronicle hoping to speak with scientists who were impacted by the government firings. Specifically NOAA scientists, especially those in California. Open to hearing from you on the record, off the record or anonymously. email: anthony.edwards@sfchronicle.com DMs open 14469254
Reposted by Neil LareauAnthony Edwards @edwardsanthonyb.bsky.social · 14/02/2025Debris basins quickly filling up in the foothills of the Eaton burn scar. Here’s Sierra Madre Canyon. #CAwx 35526
Neil Lareau @neillareau.bsky.social · 09/02/2025Sierra crest looking mighty fine today. (Frog Lake cliffs and Castle Peak) 0111
Neil Lareau @neillareau.bsky.social · 04/02/2025Impressive 72-hr precip totals across NorCal, including the always-consistent climatological maxima near Oroville (>19"). Seems like a good spot for a reservoir, eh? 051