Keah
@keah.bsky.social
Meteorology professor in Denver, backyard dahlia grower, cheesehead living in Colorado
Reposted by Keah
Reposted by Keah
Wisconsin has a new 24-hour precipitation record: 14.55"
This was recorded by a rain gauge in Milwaukee during the August flooding event and shatters the previous record of 11.72" that was measured on June 24, 1946.
www.weather.gov/mkx/NewWisco...
This was recorded by a rain gauge in Milwaukee during the August flooding event and shatters the previous record of 11.72" that was measured on June 24, 1946.
www.weather.gov/mkx/NewWisco...
New Wisconsin State Precipitation Record
www.weather.gov
December 19, 2025 at 3:19 PM
Wisconsin has a new 24-hour precipitation record: 14.55"
This was recorded by a rain gauge in Milwaukee during the August flooding event and shatters the previous record of 11.72" that was measured on June 24, 1946.
www.weather.gov/mkx/NewWisco...
This was recorded by a rain gauge in Milwaukee during the August flooding event and shatters the previous record of 11.72" that was measured on June 24, 1946.
www.weather.gov/mkx/NewWisco...
Reposted by Keah
Scientists are supposed to be happy when their predictions are skillful, right?
Why do I not feel happy?
Why do I not feel happy?
December 19, 2025 at 2:10 PM
Scientists are supposed to be happy when their predictions are skillful, right?
Why do I not feel happy?
Why do I not feel happy?
Reposted by Keah
This entire train got blown over this morning northwest of Cheyenne
December 19, 2025 at 5:49 PM
This entire train got blown over this morning northwest of Cheyenne
Reposted by Keah
This tree just came down on Pine St just west of Folsom St in Boulder. Winds already gusting to 100+ mph at NCAR Mesa Lab.
December 19, 2025 at 7:19 PM
This tree just came down on Pine St just west of Folsom St in Boulder. Winds already gusting to 100+ mph at NCAR Mesa Lab.
Reposted by Keah
Extreme winds were observed across eastern Colorado yesterday, with numerous wildfires growing quickly in Yuma County last night. The strongest winds were in the foothills, with several reports of gusts over 100mph. But the >80mph gusts on the eastern plains are perhaps even more unusual. #cowx
December 18, 2025 at 4:51 PM
Extreme winds were observed across eastern Colorado yesterday, with numerous wildfires growing quickly in Yuma County last night. The strongest winds were in the foothills, with several reports of gusts over 100mph. But the >80mph gusts on the eastern plains are perhaps even more unusual. #cowx
Reposted by Keah
The latest numbers: We are at about 60,000 without power statewide, 19,000 in #Boulder County. Another shutdown on Friday is still possible: www.axios.com/local/boulde...
60K Colorado customers remain without power amid high winds
Xcel says outages could last through the weekend.
www.axios.com
December 18, 2025 at 6:58 PM
The latest numbers: We are at about 60,000 without power statewide, 19,000 in #Boulder County. Another shutdown on Friday is still possible: www.axios.com/local/boulde...
Reposted by Keah
Reposted by Keah
A powerful storm will shift from the Upper Midwest to eastern Canada through Friday with areas of snow/localized blizzard conditions, high winds, and gusty showers and thunderstorms. An atmospheric river will impact Oregon and northern California Thursday and Friday with heavy to excessive rain.
December 18, 2025 at 1:29 AM
A powerful storm will shift from the Upper Midwest to eastern Canada through Friday with areas of snow/localized blizzard conditions, high winds, and gusty showers and thunderstorms. An atmospheric river will impact Oregon and northern California Thursday and Friday with heavy to excessive rain.
Reposted by Keah
One of the important differences on the Front Range between December 2021 and today is the dryness that allowed for the Marshall Fire to take off. 30-day SPEI was extreme in 2021, while snow 2 weeks ago left fuels in a less receptive state. PSPS and lessons learned in 2021 likely helping out too.
December 17, 2025 at 11:22 PM
One of the important differences on the Front Range between December 2021 and today is the dryness that allowed for the Marshall Fire to take off. 30-day SPEI was extreme in 2021, while snow 2 weeks ago left fuels in a less receptive state. PSPS and lessons learned in 2021 likely helping out too.
Reposted by Keah
December 17, 2025 at 10:52 PM
Reposted by Keah
December 17, 2025 at 11:40 PM
Reposted by Keah
Heads up Colorado: there’s a visibility event planned on Saturday in front of the NOAA building in Boulder to show your support for NCAR
December 17, 2025 at 8:05 PM
Heads up Colorado: there’s a visibility event planned on Saturday in front of the NOAA building in Boulder to show your support for NCAR
Reposted by Keah
Remember, those brown plumes are blowing dust. Smoke is white/gray! Lots of blowing dust near the base of the Foothills this afternoon where winds are gusting 70-95 mph right now! #cowx
December 17, 2025 at 8:43 PM
Remember, those brown plumes are blowing dust. Smoke is white/gray! Lots of blowing dust near the base of the Foothills this afternoon where winds are gusting 70-95 mph right now! #cowx
Reposted by Keah
Psst: Notice where this wind/weather data is coming from. It's coming from NCAR.
One tiny blip of the kajillion things NCAR does to improve/advance weather forecasting.
#COwx
One tiny blip of the kajillion things NCAR does to improve/advance weather forecasting.
#COwx
The wind has arrived...
60+ mph gusts at the Mesa Lab in Boulder, all kicking up within the last half hour.
This moves into the rest of the metro area in the next few hours.
#COwx
60+ mph gusts at the Mesa Lab in Boulder, all kicking up within the last half hour.
This moves into the rest of the metro area in the next few hours.
#COwx
December 17, 2025 at 6:52 PM
Psst: Notice where this wind/weather data is coming from. It's coming from NCAR.
One tiny blip of the kajillion things NCAR does to improve/advance weather forecasting.
#COwx
One tiny blip of the kajillion things NCAR does to improve/advance weather forecasting.
#COwx
Reposted by Keah
It was an incredible honor to receive the Stephen H. Schneider award for Outstanding Climate Science Communication from @climateone.org this year.
@globalecoguy.bsky.social isn't just an expert on hundreds of climate solutions; he’s also an expert at making complex ideas digestible. That's why he was awarded Climate One's 2025 Schneider Award for Outstanding Science Communication. Hear from Foley live onstage on the latest from Climate One:
Jonathan Foley: 2025 Schneider Award Winner
Project Drawdown is the world’s leading science-based guide to climate solutions. According to Jonathan Foley, Project Drawdown’s Executive Director, they aim to be the Consumer Reports for climate ch...
play.megaphone.fm
December 14, 2025 at 10:30 PM
It was an incredible honor to receive the Stephen H. Schneider award for Outstanding Climate Science Communication from @climateone.org this year.
Reposted by Keah
Take a journey through time down a new NSF COLDEX ice core borehole just completed by the team in #Antarctica!
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
December 14, 2025 at 11:59 PM
Take a journey through time down a new NSF COLDEX ice core borehole just completed by the team in #Antarctica!
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
If you’re at #AGU25 stop by the COLDEX booth in the Exhibit Hall to talk to COLDEX team members from across the 15-institution center funded by NSF! @agu.org Follow us on IG @ coldex_stc
Reposted by Keah
Denver just hit 60° for the 7th-straight day. That is now Denver's latest streak of 60°+ temps on record.
It also ties the 2nd-longest streak of December days of 60°+ temps on record as well.
#COwx
It also ties the 2nd-longest streak of December days of 60°+ temps on record as well.
#COwx
December 15, 2025 at 5:50 PM
Denver just hit 60° for the 7th-straight day. That is now Denver's latest streak of 60°+ temps on record.
It also ties the 2nd-longest streak of December days of 60°+ temps on record as well.
#COwx
It also ties the 2nd-longest streak of December days of 60°+ temps on record as well.
#COwx
Reposted by Keah
TIL about a memorial ceremony in Iceland in 2019 to mark the end of a glacier, changing the place name from Okjökull to Ok (jökull = glacier). Uncompromising wording on the bronze plaque:
"This is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it".
"This is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it".
December 7, 2025 at 5:17 PM
TIL about a memorial ceremony in Iceland in 2019 to mark the end of a glacier, changing the place name from Okjökull to Ok (jökull = glacier). Uncompromising wording on the bronze plaque:
"This is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it".
"This is to acknowledge that we know what is happening and what needs to be done. Only you know if we did it".
Reposted by Keah
Deadliest tropical cyclone of 2025: A rare low-latitude tropical storm (Senyar, which formed at 3.7N) contributed to flooding in Indonesia, Thailand, and Malaysia that has killed 775+ and left 430+ missing. Lhokseumawe, Indonesia had 15.12" (384 mm) of rain in 24h ending 12Z Nov. 26.
Indonesia floods death toll rises to 442 as people hunt for food and water
At least two areas of the worst-affected Sumatra island still unreachable, as authorities struggle to deliver aid.
www.aljazeera.com
December 1, 2025 at 1:04 AM
Deadliest tropical cyclone of 2025: A rare low-latitude tropical storm (Senyar, which formed at 3.7N) contributed to flooding in Indonesia, Thailand, and Malaysia that has killed 775+ and left 430+ missing. Lhokseumawe, Indonesia had 15.12" (384 mm) of rain in 24h ending 12Z Nov. 26.
Reposted by Keah
🔥Let's check in and see how much December temperatures have changed (trend) over the last 75 years. 🔥
December 1, 2025 at 8:17 PM
🔥Let's check in and see how much December temperatures have changed (trend) over the last 75 years. 🔥
Reposted by Keah
Temperature anomalies across the #Arctic over the last 12 months...
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
December 1, 2025 at 12:37 PM
Temperature anomalies across the #Arctic over the last 12 months...
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Reposted by Keah
After 9 straight years with a landfalling hurricane—and a record 5 straight (2020-2024) with a major hurricane landfall—the U.S. escaped any hurricane landfalls in 2025. With the unprecedented disarray affecting FEMA and NOAA, we were extremely fortunate not to be tested by a major hurricane!
A Cat 4 and 5 extravaganza: A look back at the 2025 Atlantic hurricane season » Yale Climate Connections
Extraordinarily, three of 2025’s 13 named storms (23%) reached Category 5 strength: Erin, Humberto, and Melissa.
yaleclimateconnections.org
December 1, 2025 at 2:52 PM
After 9 straight years with a landfalling hurricane—and a record 5 straight (2020-2024) with a major hurricane landfall—the U.S. escaped any hurricane landfalls in 2025. With the unprecedented disarray affecting FEMA and NOAA, we were extremely fortunate not to be tested by a major hurricane!