Russ Schumacher

@rschumacher.cloud

"an upbeat atmospheric science professor" -- theverge | sometimes it snows in April | Fort Collins, Colorado | personal account

Happy 150th birthday, Colorado! Here's one of our favorite maps: average annual precipitation with color shading inspired by the state flag. It nicely illustrates the many variations in weather and climate across our beautiful state. 🎂🥳

Map of annual average precipitation in Colorado, with colors drawn from the state flag. The mountains are in white with over 50" of precipitation; some of the river valleys are in red with less than 10" of precipitation.

Today is the 50th anniversary of the Big Thompson flood of July 31, 1976: one of the deadliest disasters in Colorado history. An intense rainstorm led to a rapid flood wave down the canyon where many people were commemorating Colorado's centennial. 144 people lost their lives. #cowx 1/

Photo of a house sitting atop a bridge after having been washed downstream by the Big Thompson flood. Source: https://www.usgs.gov/media/images/big-thompson-canyon-flood-colorado-1976

July 18th, 1986: A widely viewed tornado struck the Minneapolis/St Paul metro. Described as a "minimal" F2, the twister was observed by MNDOT cameras, a KARE-11 news helicopter, and tens of thousands of residents. Several dozen structures were damaged.

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Preliminary maximum rainfall amounts exceeding 20-25" have occurred during the last four days across parts of south-central TX, leading to catastrophic flooding in the area. Raining continues across south-central TX.

Graphic titled "South-Central Texas Extreme Rainfall: Preliminary observations and rainfall estimates valid Monday (7/13) to Friday (7/17)."

Map Description:
A map of Texas showing rainfall estimates from 7 am CDT 7/13 to 11 am CDT 7/17. The heaviest rainfall, between 15 and 20+ inches (indicated in dark red and purple), is concentrated in South-Central Texas, primarily spreading west and north of San Antonio toward Del Rio.

Selected Preliminary Rain Reports:

Knippa, TX 6 NW: 27.45"

Camp Eagle, TX: 27.05"

Ingram, TX 1 NNW: 25.36"

Kerrville, TX 1.5 NNW: 20.75"

Camp Wood, TX 9 ESE: 20.31"

Utopia, TX 2 WSW: 19.83"

Johnson Creek, TX: 18.29"

Heavy rainfall and widespread flooding battered parts of Missouri on Friday, forcing the helicopter evacuations of more than 200 children and staff from a summer camp and the rescues of about 20 people who had moved to safety on a campground building that collapsed. https://to.pbs.org/4fwxGSI

More than 200 people at a summer camp helicoptered to safety as Missouri faces flooding

With nearby roads washed away and more rain in the forecast, the children were trapped at Camp Taum Sauk in the small southeastern community of Lesterville, according Sgt. Eddie Young with the state's...

to.pbs.org

bumping this in light of another 1000-yr rainstorm in Missouri overnight. A narrow band of extreme accumulations from a 'training line' mesoscale convective system.

Map of points exceeding the 1000-yr average recurrence interval for 6-h precipitation as of 1200 UTC 10 July 2026. There is a swath of points in southeastern Missouri that exceeded this threshold.
Russ Schumacher @rschumacher.cloud · last mo.

happy to have this paper published with @draaronhill.bsky.social We looked at extreme rainfall (up to 1000-yr storms) in gridded datasets and the CONUS404 simulation. Continuing the theme from other work, there are many nice things about CONUS404, but it is not a reanalysis of extreme precip. 🧵

So much of the (intense) focus on NWS upper air issues has been on impacts on model forecasts - but we collect this data as part of a global effort to ensure high quality data for climate and atmospheric monitoring, and the US is currently not living up to its commitments. tinyurl.com/4ys6daef

Upper air balloons are not just about data for computer models

Part of a larger global weather and climate data gathering effort - and US appears to be dropping the ball on its commitments

tinyurl.com

Totally bummed to be in Florida on vacation and my neighbor got to measure 8.40" in my CoCoRaHS gauge from this deluge just NE of Des Moines Friday morning. That should have been me adding up all those partial empties of the outer cylinder into the inner cylinder!! So jealous!

Des Moines metro deluge