Petition to source the NAM MOS from the NAM3KM going forward, just for funzies.

Bwahh, haha, haha. I will soon be the only known shop in the lucrative RTP generation market. mesonet.agron.iastate.edu/plotting/aut...

The video for my #taloscon2025 keynote is now up! www.youtube.com/watch?v=Cum5...

With Ames + Des Moines, IA having a high of 67°F today, my kids forced me to compute the climate sites with the highest frequency of a six seven high temp. The overall "winner" within my database is Hawaii National Park, HI (~1200m) at 25 days per year with a number of CA sites not far behind. #sigh

NWS Norman just issued their 1,112th Severe Thunderstorm Warning this year, which is now ~12% higher than their previous year's max of 988. (Glad VTEC implemented 4 digit tracking event numbers!)

I do check X once a day for anybody contacting me for help and noticed this trending there. @shawnmilrad.bsky.social if you are listening...

We’re en route to a -7 point 4th quarter.

The Hawkeyes are 34-1 when scoring 21+ points since 2020.... Wait, Iowa has scored 21 points in 35 games over the past 5 years? That seems high.

Surprised to find the Aviation Weather Center METAR service discontinued overnight. The future is here I guess: aviationweather.gov/data/api/ Continues my long standing rant that the NCEP centers do whatever they want on the web while weather.gov can't change anything without SCN/comment period.

Computed statistic for yearly percentage of NWS Tornado Warnings that are "RADAR Indicated" at warning issuance. 2017 92.4% 2018 92.0% 2019 90.6% 2020 92.1% 2021 88.8% 2022 92.1% 2023 88.5% 2024 91.0% 2025 90.7%

When I see posts with old text products, I like to see if my archives have it. Cool! mesonet.agron.iastate.edu/wx/afos/p.ph...

🧐

Yeah, my database shows this as a record for most-delayed LSR...

Was computing some stats and realized NWS Norman has issued over 1,000 Severe Thunderstorm Warnings this year! Here's the top 10 yearly counts 2025 OUN 1003 2024 OUN 988 2019 OUN 942 2017 OUN 923 2016 OUN 907 2011 LZK 901 2023 OUN 894 2008 OUN 871 2008 JAN 823 2003 JAN 796

I have @nws.noaa.gov issuing 173 Svr TStorm Warns for yesterday (Central TZ) and 0 Tor Warns. Top 10 dates with the highest # of SVRs and 0 TORs. 2012/7/5 -371 2023/9/7 -300 2024/8/17 -249 2012/7/8 -244 2023/7/30 -243 2023/9/8 -218 2019/8/18 -216 2010/5/28 -210 2021/8/13 -193 2005/8/5 -187

RyNoooooooooo!

Cumulus clouds swirl along the Gulf Coast. This mesmerizing view captured yesterday by GOES-19.

Whew, but shows the temperature happening at 3:42 PM EST -> 2:42 PM EDT. This stuff is all way more complicated than it should be. KTPA DS 1600 27/07 1001542/ 830611// 100/ mesonet.agron.iastate.edu/wx/afos/p.ph...

I always get super nervous seeing things like this based off the 5 minute MADIS data at 38C! We'll see once the DSM comes any minute now :)

One always feels bad emailing the SDM in these situations as they likely are getting slammed by emails and can't send any alerts themselves as their dissemination is down as well. Alas, a data flow outage is afoot...

Onto rebooting the next thing

We have reached the reboot stage of this outage.

By design or luck(?) that the few radars that are online are all with the current tornado warnings...

2.5 hours into the outage, we get our first update.

Suboptimal, but looks colorful.

Plot shows weekly normalized NWS issuance counts of TOR, SVR, and FF Warnings. Top panel is Iowa WFOs and the bottom panel is nationwide. For Iowa, small populations during winter weeks cause the noisy bars. Clean annual signals otherwise.

Chasecation day 10. Grand Island NE

Brought my IEM Dog and Pony Show to NWS Boulder. Thanks to my family for letting me moonlight whilst on vacation.

There were quite a few heat bursts overnight... Fertile, Pillsbury, and Croff temperature and dew point charts are below #ndwx #mnwx #mtwx

co-sign for KDEN

Chasecation day 5, patience pays off. About to blast up Pikes Peak and 0 meter the rain wrapped wedge.

Chasecation day 1. Life choices being made.

Getting old, bitter, jaded and other things, but it never ceases to amaze that the NWS still has no filters that prevent a product from getting disseminated like this one just now. They shunt this necessary QC work onto every end user that attempts to process their fire hose.

Here's my unofficial accounting of sites with newly set extreme combinations of temperature, dew point, and sustained winds. Will be looking for more sites and certainly watch as this repeats tomorrow. Please let me know if you have candidates for the list, my website has no tool for this attm :(

Sioux City, IA 3 PM Ob 97/70 + 24 kt sustained winds. I have no other observations at those thresholds, with archives back to 1939.

Omaha (Eppley), NE 3 PM Ob 100/66 + 25 kt sustained winds. I have no other observations for the site at those thresholds. #newx

Des Moines, IA 3 PM Ob 96/69 with a 23kt sustained wind. I only find only one other observation at or above those thresholds, on 23 Aug 1948 (96/69 + 23kts as well). #iawx

Given the current political climate, I find NOAA/NWS notices like this to be quite interesting/risky.

More CLP5 erasure. deepmind.google.com/science/weat...

Here's my current list of warning issuances missed during tonight's major NWS dissemination outage. I suspect this list will grow as Rumsfeld's known unknowns are found... KAMA.SV.W.0145 KSJT.FL.W.0003 KABQ.FF.W.0029 KREV.FA.Y.0005 KABQ.SV.W.0122 KBOU.FA.Y.0011

From the NWS (what @akrherz.bsky.social and I suspected): Data dissemination problems have resumed. Radar data, obs and products (including WWA) are seeing frequent and lengthy delays. NCF support are investigating the issue.

Even larger blow up today.

About 2 hours in, we hear from the SDM, whew.

Outages happen, but where is the SDM sending out ADMs when this happen? So frustrating...

🚨 Oh noes and oh my cats on option 2 suggestion.

The second of my three NWS apps to die peacefully. 👎 OG NWSChat 👎 RA-IV GIFS ✅ NWWS-OI Its fine. They lived a good life.

An updated US Sounding/RAOB inventory plot. The NCEI IRGA2 data is delayed a bit, thus the plot ending last week instead of this morning. Can see the drop since mid March and the more inconsistent daily totals during May...

PAH issues Damage Survey PNS (Max: EF4) at May 18, 4:10 PM CDT ...NWS Damage Survey for the May 16, 2025, Tornado Event in Marion, Illinois... Link

My brother lives on the edge of Mayville, no damage at his house, goodness