Vog returns to West Hawaii as Kilauea eruption continues

  • A Hawaiian Volcano Observatory gas scientist takes notes based on the spectra being displayed by the field laptop, which is connected to a FTIR spectrometer on the rim of Halema‘uma‘u crater on Wednesday. The FTIR is measuring the composition of volcanic gases being emitted during an eruption within Halema‘uma‘u by measuring how the plume absorbs infrared energy. (USGS photo by P. Nadeau/Special to West Hawaii Today)

  • Hawaiian Volcano Observatory gas scientists use a FTIR spectrometer Thursday on the rim of Halema‘uma‘u crater to measure the composition of gases being emitted during Kilauea's summit eruption, which began Wednesday afternoon. The eruption is generating a plume consisting primarily of sulfur-dioxide (SO2), but also containing water vapor (H2O), carbon dioxide (CO2), and halogen gases such as HCl and HF. Sulfur dioxide (SO2) emission rates were estimated at around 20,000 tonnes per day Thursday morning. USGS photo by T. Elias/Special to West Hawaii Today)

  • USGS Hawaiian Volcano Observatory scientists continue to monitor the new eruption at in Kilauea’s Halema‘uma‘u crater on Thursday evening. Field crews made measurements of the active fountains and the lava lake level to track how quickly it is rising. (USGS Photo by K. Lynn/Special to West Hawaii Today)

  • The Kilauea summit eruption continued within Halema‘uma‘u crater in Hawaii Volcanoes National Park Friday. This wide view of the new lava lake was taken Friday morning during a Hawaiian Volcano Observatory eruption overflight. Volcanic gas emissions remain elevated with lava fountains from the vent on the western crater wall, and from within the lava lake, producing the largest gas plumes. (USGS photo taken by L. DeSmither/Special to West Hawaii Today)

  • Hualalai is nearly obliterated by vog Friday afternoon. (Laura Ruminski/West Hawaii Today)

  • Hualalai is nearly obliterated by vog Friday afternoon. (Laura Ruminski/West Hawaii Today)

  • With northeasterly tradewinds forecast through Tuesday, the University of Hawaii at Manoa’s Vog Measurement and Prediction Project said small amounts of vog may continue to impact areas southwest of the Kilauea summit caldera, including the western half of the southern coast of Hawaii Island (the Ka‘u District). This screen grab shows a forecast for Saturday morning. (Vog Measurement and Prediction Project/Special to West Hawaii Today)

  • Vog blankets Kona on Friday. (Laura Ruminski/West Hawaii Today)

The vog is back.