Senior Meteorologist @nwsdesmoines l Warns for spinny things and Derechos l Tornado track hunter l Alum: @iowastateu l Opinions are my own
Johnston, Iowa, USA
Joined January 2016
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Part of the heavy rain equation for Iowa is Hurricane Polo which will be ingested into the southwest flow and bring additional moisture to the state. Ensemble Image created on Polar Wx.
Christian Doppler's house in Salzburg, Austria. Where have I heard that name before? BTW, Mozart's house is next door.
Rod Donavon retweeted
🌪️ NWS Des Moines Damage Survey Update 🌪️
15 tornadoes have been confirmed from May 15-18:
Please see the webpage below for more information: weather.gov/dmx/2026-05-15-1…
Expect further additions and/or adjustments as new info arrives. #iawx
Photo Credit: Dave Johnson
This is well stated! Blizzard warnings were issued for a reason.
A glimpse of @iowastatepatrol Trooper Moore on Interstate 80 in western Iowa last night! There is a reason the @NWSOmaha @NWSDesMoines and first responders warn in advance of these blizzard conditions and to STAY HOME. First responders had to rescue many and take to shelters!
Blizzard conditions in rural areas. This is south of Ames, IA around 7 pm CDT. Roads have become ice making it worse. It doesn't take much snow for this to happen! @NWSDesMoines
Yeah, it was definitely a dirty rain north of Johnston #iawx
There is a massive amount of dust being picked up by strong winds over KS, OK, TX, CO, NM currently and can be seen here in light brown. That dust will arrive over Iowa this evening. Any precipitation will use this dust as nuclei so expect dirt on your cars in the morning #iawx
We are looking forward to seeing everyone there!
Registration is now open for the 2026 conference! Follow the link below to get registered!
Link>> iowa-nwa.com/
#wxtwitter #iawx
Rod Donavon retweeted
The dates have officially been announced for the 2026 Severe Storms and Doppler Radar Conference. Make sure to add these dates to your calendar!
Be on the lookout for more information regarding registration, scholarships, and speakers. We hope to see you there!
#wxtwitter #iawx
The annual Cogil golf classic only lasted 9 holes this year at the Lake Panorama Golf Course due to storms but 3 retired NWS employees and one current NWS employee got some quick storm surveying done. Note the damage was from the overnight storms.
It was great to have Jason in the office today!
Thanks so much to my old friend Rod Donovan at the US National Weather Service Des Moines Iowa for hosting us for the evening shows ahead of tomorrow’s storms. Such a great partnership and we’re lucky to get to collaborate with these folks. #iawx @NWSDesMoines
The large dendrites have arrived in west Ames. The radar imagery is differential reflectivity, with the higher band showing the area of stellar dendrites. 33 degrees, though, so SLR is lower. @NWSDesMoines
This isn't hype. It is a very strong storm system that is going to bring significant impacts to the region.
Come present at our Severe Storms and Doppler Radar Conference!
We are also currently accepting abstracts for #ssdrc2025 through Friday, February 28! To submit your abstract, please email it to Dr. William Gallus ([email protected]), and indicate whether you prefer an oral of poster presentation. #iawx
Join us for a free AMS webinar on Jan 22nd at 1 pm CST as John and I give an overview of the NWS Central Region Convective Warning Improvement Project.
Rod Donavon retweeted
We had a full house hosting the Central Iowa National Weather Association meeting at our office this evening. The group consisted of NWS and broadcast meteorologists along with ISU meteorology professors and students. It was great to have everyone here! @CentralIowaNWA
Super slow-mo fire is cool, too, when you actually have a Friday night off and no severe weather nearby.
Rating tornadoes is not a perfect process. Tornadoes can only be rated as high as the damage indicators allow. DOW data is awesome, but it is a wind speed, not a damage indicator. The DOW data is added to the Storm Data entries and could be utilized in the future to reassess.