IEM Daily Bulletin for Mar 21 2026
daryl herzmann
Iowa Environmental Mesonet Daily Bulletin for 21 March 2026
News
No news is good newsIEM Code Pushes <repo,branch> on Github
| Timestamp | Repository | Message | Link |
|---|---|---|---|
| Mar 20 1:05 PM | iem,main | 🎨 Updates for iemwebfarm updates | Link |
| Mar 20 1:05 PM | iem,main | ⬆️ Update ruff | Link |
| Mar 20 3:19 PM | iem,main | 💚 Address coverage hit | Link |
| Mar 20 10:10 AM | pyiem,main | 🎨 Test empty CGI params as None in iemapp | Link |
Daily Feature
Another +30°F Departure Day
Date: 20 Mar 05:30 AM
Votes: Good: 7
Bad: 0 Abstain: 0
The featured chart presents the daily high temperature departure from average for Sioux City for each day this year. The calculated departure on Thursday was just over 30°F above average and made for the ninth such day this year of at least 30°F. The chart nicely shows how dominant the warm weather has been since the start of February with only a few brief periods below average. Even warmer weather is expected today and on Saturday before slightly cooler weather arrives early next week, but still above average.
The featured media can be generated on-demand here
.NWS Watch/Warning Summary for 12 AM 20 Mar 2026 - 12 AM 21 Mar 2026 CDT
| 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 | 3 | 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.
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