IEM Daily Bulletin for Jan 30 2026
daryl herzmann
Iowa Environmental Mesonet Daily Bulletin for 30 January 2026
News
No news is good newsIEM Code Pushes <repo,branch> on Github
| Timestamp | Repository | Message | Link |
|---|---|---|---|
| Jan 29 8:51 AM | iem,main | 📝 Update talltowers db shard | Link |
| Jan 29 10:16 AM | iem,main | ✨ Add start/end date limiter to VTEC time freq https://mesonet.agron.iastate.edu/plotting/auto/?q=72 |
Link |
| Jan 29 10:17 AM | iem,main | 📝 Sundry updates per review | Link |
| Jan 29 1:07 PM | iem,main | 🎨 Address/test more pandas warnings | Link |
| Jan 29 2:22 PM | iem,main | ⚡️ Protect service with 60s timeout https://mesonet.agron.iastate.edu/cgi-bin/afos/retreive.py?help |
Link |
| Jan 29 2:35 PM | iem,main | 💚 Reset timeout after test | Link |
| Jan 29 2:48 PM | iem,main | 💚 Address pandas issue | Link |
| Jan 29 9:42 PM | pyiem,main | ✨ Support New SPC CIG[1-3] Thresholds for #1156 | Link |
| Jan 29 10:48 PM | pyiem,main | 💚 Cleanup test and test data | Link |
| Jan 29 3:42 PM | iem-database,main | ⬆️ Update ruff | Link |
| Jan 29 3:51 PM | iem-database,main | ✨ Support CIG[1-3] SPC Thresholds refs akrherz/pyIEM#1156 |
Link |
Daily Feature
2026 Heating Degree Days
Date: 29 Jan 05:30 AM
Votes: Good: 11
Bad: 0 Abstain: 0
Today's featured chart presents year to date accumulated heating degree days (base 60°F). The red line is a simple average with the blue shaded region representing the range between the 25th and 75th percentile and then the tan region representing the 5th to 95th percentile. The blue dots are the 2026 values. For much of January, the accumulation was near the bottom of the observed range. The past week or two have made up for lost time with the accumulation now above the 25th percentile and inching higher. Charts like these often tell an effective story for the energy demands necessary to heat buildings as a larger accumulation implies colder temperatures and thus more energy required (read higher monetary costs).
The featured media can be generated on-demand here
.NWS Watch/Warning Summary for 12 AM 29 Jan 2026 - 12 AM 30 Jan 2026 CST
| Summary | By WFO | Watches | ||||||
|---|---|---|---|---|---|---|---|---|
| Type | US | IA | ARX | DVN | DMX | OAX | FSD | US |
| Tornado | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Svr Tstorm | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Flash Flood | 0 | 0 | 0 | 0 | 0 | 0 | 0 | --- |
ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD
IEM Cow Report
No SVR+TOR Warnings Issued.