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Christman Field Latest Observations
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Date Time
MST
Temp
°F
RH
%
DewPt
°F
Wind
mph
Dir
°
Gust
mph
Dir
°
Press
in Hg
Solar
W/m^2
Prec
in
2023-01-31 22:00 9.5 80.2 4.6 4.5 219 5.5 255 24.897 0.0 0.00
2023-01-31 21:55 11.1 76.3 5.1 4.2 262 8.2 255 24.896 0.0 0.00
2023-01-31 21:50 9.0 86.9 5.9 5.5 251 8.9 253 24.898 0.0 0.00
2023-01-31 21:45 5.8 84.0 2.0 3.7 265 5.0 247 24.899 0.0 0.00
2023-01-31 21:40 6.2 83.5 2.2 3.5 259 4.4 247 24.897 0.0 0.00
2023-01-31 21:35 5.7 85.8 2.4 2.7 317 3.5 316 24.896 0.0 0.00
2023-01-31 21:30 5.3 84.5 1.7 3.1 299 4.3 261 24.899 0.1 0.00
2023-01-31 21:25 5.2 84.3 1.5 2.7 248 4.3 237 24.901 0.0 0.00
2023-01-31 21:20 5.3 82.4 1.1 1.8 249 3.2 249 24.899 0.0 0.00
2023-01-31 21:15 4.7 83.7 0.9 0.8 286 2.1 286 24.897 0.1 0.00
2023-01-31 21:10 4.9 82.6 0.7 1.8 343 2.4 351 24.898 0.1 0.00
2023-01-31 21:05 4.9 82.2 0.7 3.0 351 3.7 310 24.900 0.0 0.00
2023-01-31 21:00 5.1 80.8 0.5 3.2 310 3.9 326 24.900 0.0 0.00
2023-01-31 20:55 6.6 79.4 1.6 3.4 326 4.5 345 24.900 0.0 0.00
2023-01-31 20:50 7.8 78.0 2.3 3.6 1 4.2 4 24.895 0.0 0.00
2023-01-31 20:45 7.3 82.0 3.0 2.6 350 3.0 351 24.895 0.0 0.00
2023-01-31 20:40 5.6 83.8 1.8 2.1 288 2.8 299 24.897 0.0 0.00
2023-01-31 20:35 5.8 78.4 0.5 2.5 231 4.7 337 24.895 0.0 0.00
2023-01-31 20:30 6.4 82.6 2.3 4.9 337 5.8 349 24.894 0.0 0.00
2023-01-31 20:25 5.7 82.4 1.5 3.5 11 4.8 11 24.892 0.0 0.00
2023-01-31 20:20 5.8 81.1 1.3 2.3 356 3.8 12 24.889 0.0 0.00
2023-01-31 20:15 6.4 79.5 1.4 2.1 66 3.4 252 24.889 0.0 0.00
2023-01-31 20:10 7.0 82.2 2.7 2.9 252 3.6 263 24.885 0.0 0.00
2023-01-31 20:05 7.2 83.1 3.1 4.5 264 5.5 260 24.888 0.0 0.00
2023-01-31 20:00 6.8 81.0 2.2 4.6 249 5.7 256 24.887 0.0 0.00
2023-01-31 19:55 6.5 83.1 2.5 4.5 257 5.3 244 24.890 0.0 0.00
2023-01-31 19:50 7.5 79.7 2.6 2.3 229 3.1 228 24.889 0.0 0.00
2023-01-31 19:45 7.4 82.0 3.0 2.1 212 2.6 171 24.889 0.1 0.00
2023-01-31 19:40 7.2 80.6 2.5 2.4 171 2.8 220 24.891 0.1 0.00
2023-01-31 19:35 5.8 82.4 1.6 3.1 223 3.8 243 24.891 0.1 0.00
Date Time
MST
Temp
°C
RH
%
DewPt
°C
Wind
m/s
Dir
°
Gust
m/s
Dir
°
Press
hPa
Solar
W/m^2
Prec
mm
2023-01-31 22:00 -12.5 80.2 -15.2 2.0 219 2.5 255 843.12 0.0 0.00
2023-01-31 21:55 -11.6 76.3 -14.9 1.9 262 3.7 255 843.06 0.0 0.00
2023-01-31 21:50 -12.8 86.9 -14.5 2.5 251 4.0 253 843.13 0.0 0.00
2023-01-31 21:45 -14.6 84.0 -16.7 1.7 265 2.2 247 843.17 0.0 0.00
2023-01-31 21:40 -14.4 83.5 -16.5 1.5 259 2.0 247 843.12 0.0 0.00
2023-01-31 21:35 -14.6 85.8 -16.5 1.2 317 1.5 316 843.06 0.0 0.00
2023-01-31 21:30 -14.8 84.5 -16.8 1.4 299 1.9 261 843.18 0.1 0.00
2023-01-31 21:25 -14.9 84.3 -16.9 1.2 248 1.9 237 843.23 0.0 0.00
2023-01-31 21:20 -14.8 82.4 -17.2 0.8 249 1.4 249 843.16 0.0 0.00
2023-01-31 21:15 -15.2 83.7 -17.3 0.4 286 0.9 286 843.11 0.1 0.00
2023-01-31 21:10 -15.1 82.6 -17.4 0.8 343 1.1 351 843.16 0.1 0.00
2023-01-31 21:05 -15.1 82.2 -17.4 1.3 351 1.6 310 843.23 0.0 0.00
2023-01-31 21:00 -14.9 80.8 -17.5 1.4 310 1.7 326 843.21 0.0 0.00
2023-01-31 20:55 -14.1 79.4 -16.9 1.5 326 2.0 345 843.21 0.0 0.00
2023-01-31 20:50 -13.5 78.0 -16.5 1.6 1 1.9 4 843.03 0.0 0.00
2023-01-31 20:45 -13.7 82.0 -16.1 1.2 350 1.3 351 843.05 0.0 0.00
2023-01-31 20:40 -14.7 83.8 -16.8 1.0 288 1.3 299 843.11 0.0 0.00
2023-01-31 20:35 -14.6 78.4 -17.5 1.1 231 2.1 337 843.04 0.0 0.00
2023-01-31 20:30 -14.2 82.6 -16.5 2.2 337 2.6 349 843.00 0.0 0.00
2023-01-31 20:25 -14.6 82.4 -16.9 1.5 11 2.2 11 842.94 0.0 0.00
2023-01-31 20:20 -14.5 81.1 -17.1 1.0 356 1.7 12 842.83 0.0 0.00
2023-01-31 20:15 -14.2 79.5 -17.0 0.9 66 1.5 252 842.84 0.0 0.00
2023-01-31 20:10 -13.9 82.2 -16.3 1.3 252 1.6 263 842.70 0.0 0.00
2023-01-31 20:05 -13.8 83.1 -16.0 2.0 264 2.5 260 842.81 0.0 0.00
2023-01-31 20:00 -14.0 81.0 -16.5 2.1 249 2.5 256 842.78 0.0 0.00
2023-01-31 19:55 -14.2 83.1 -16.4 2.0 257 2.4 244 842.87 0.0 0.00
2023-01-31 19:50 -13.6 79.7 -16.4 1.0 229 1.4 228 842.83 0.0 0.00
2023-01-31 19:45 -13.7 82.0 -16.1 0.9 212 1.2 171 842.85 0.1 0.00
2023-01-31 19:40 -13.8 80.6 -16.4 1.1 171 1.3 220 842.91 0.1 0.00
2023-01-31 19:35 -14.5 82.4 -16.9 1.4 223 1.7 243 842.90 0.1 0.00
CIRA

Cooperative Institute for Research in the Atmosphere

Wildfire-Driven Thunderstorms Cause a Volcano-Like Stratospheric Injection of Smoke

October 23, 2018 11:00 am
CIRA Directors Conference Room

Presented by: David A. Peterson

Hosted by: James R. Campbell, Edward J. Hyer, Michael D. Fromm, George P. Kablick, Joshua H. Cossuth, Matthew T. DeLand

Naval Research Laboratory


Intense heating by wildfires can generate a deep, smoke-infused thunderstorm, known as pyrocumulonimbus (pyroCb). This extreme weather phenomenon can release a large quantity of smoke particles into the upper troposphere and lower stratosphere. The meteorology driving pyroCb occurrence, combined with increasingly active fire seasons, indicates that pyroCb are a significant and endemic summertime feature in several temperate regions worldwide. A single fire season in western North America can include more than 25 intense single or multi-updraft pyroCb events. Since 2000, several stratospheric aerosol layers, first thought to be of volcanic origin, have been reclassified as originating from pyroCb activity. To date, however, the impact of pyroCb on climate has never been systematically explored, and remains almost compl¬etely unquantified. Here we quantify the mass of smoke aerosol injected into the lower stratosphere from five near-simultaneous intense pyroCb observed in western North America on 12 August 2017. We find that the stratospheric aerosol mass injected by this extreme event was comparable to a moderate volcanic eruption, and at least an order of magnitude larger than previous benchmarks for extreme pyroCb activity. The resulting high-altitude smoke layer encircled the Northern Hemisphere over several months. Our results demonstrate that extreme pyroCb activity significantly influences the lower-stratosphere in a manner similar to infrequent volcanic intrusions. We anticipate that this study will establish a foundation for understanding the effects of pyroCb smoke on lower-stratospheric chemistry and dynamic circulation.