IEM Daily Bulletin for Jun 6 2026
daryl herzmann
Iowa Environmental Mesonet Daily Bulletin for 06 June 2026
News
No news is good newsIEM Code Pushes <repo,branch> on Github
| Timestamp | Repository | Message | Link |
|---|---|---|---|
| Jun 5 9:11 AM | pyiem,main | ⬆️ Update precommits | Link |
| Jun 5 9:50 AM | pyiem,main | 📝 Create basic template for daily erosion project | Link |
| Jun 5 9:51 AM | pyiem,main | 🎨 Use HTTP_HOST in template determination | Link |
| Jun 5 10:02 AM | pyiem,main | 🐛 Fix windrose tests to return None | Link |
| Jun 5 10:10 AM | pyiem,main | 🎨 Use quasi-random ipv4 address in webutil testing | Link |
| Jun 5 10:18 AM | pyiem,main | 🎨 Address pydantic model_fields deprecation require pydantic>=2.11 |
Link |
| Jun 5 10:28 AM | pyiem,main | 🐛 Fix windrose MPL tests | Link |
| Jun 5 10:29 AM | pyiem,main | 💚 Address deepsource concern | Link |
| Jun 5 10:37 AM | pyiem,main | 💚 Address codereview | Link |
| Jun 5 10:48 AM | pyiem,main | 💚 Improve template test coverage | Link |
| Jun 5 11:17 AM | pyiem,main | 🐛 Fix racy iemapp throttle memcache usage | Link |
| Jun 5 11:28 AM | pyiem,main | 💚 Address codereview | Link |
| Jun 5 11:44 AM | pyiem,main | ♻️ Refactor datetime usage, remove unreachable code | Link |
| Jun 5 12:10 PM | iem-web-services,main | 🐛 Workaround cache assumption when MOS is updating | Link |
| Jun 5 12:10 PM | iem-web-services,main | ⬆️ Update ruff precommit | Link |
| Jun 5 12:16 PM | iem-web-services,main | 🐛 Fix runtime database check | Link |
| Jun 5 12:17 PM | iem-web-services,main | 💚 Address codereview doc fix | Link |
Daily Feature
Soaking Rain
Date: 05 Jun 05:30 AM
Votes: Good: 15
Bad: 0 Abstain: 0
Thursday saw much needed rainfall over a decent chunk of Iowa. The Ames area received two to over three inches of rain, so it is a good time to check in on the ISU soil moisture sensors to see if the rain soaked in. The featured chart is from the sensor at the "Kitchen Farm", just southwest of Ames. The chart plots the soil moisture sensors at various depths down to 40 inches below the surface since the start of June. The side panels show the depth soil moisture values at the start of June and the most recent observation plotted. The soaking nature of the rain is immediately noticeable with even the shallowest depth starting to dry as the water soaks deeper into the soil. You may be wondering what is happening with the 40 inch value as a 0.7 volumetric value is very high. The belief/hope is that the water table rose to a depth shallower than 40 inches and so the sensor at that depth is submerged. The sensor is in a "prairie pot hole" region with a shallow water table.
The featured media can be generated on-demand here
.NWS Watch/Warning Summary for 12 AM 5 Jun 2026 - 12 AM 6 Jun 2026 CDT
| Summary | By WFO | Watches | ||||||
|---|---|---|---|---|---|---|---|---|
| Type | US | IA | ARX | DVN | DMX | OAX | FSD | US |
| Tornado | 12 | 5 | 2 | 0 | 5 | 1 | 0 | 0 |
| Svr Tstorm | 84 | 20 | 7 | 0 | 11 | 22 | 0 | 3 |
| Flash Flood | 56 | 4 | 0 | 0 | 3 | 7 | 0 | --- |
ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD
IEM Cow Report
SVR+TOR Warnings Issued: 84 Verified: 25 [29.8%] Polygon Size Versus County Size [17.9%] Average Perimeter Ratio [23.0%] Percentage of Warned Area Verified (15km) [19.8%] Average Storm Based Warning Size [889 sq km] Probability of Detection(higher is better) [0.69] False Alarm Ratio (lower is better) [0.70] Critical Success Index (higher is better) [0.26]
IEMBot Social Media Posts
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