IEM Daily Bulletin for Jul 8 2025
daryl herzmann
Iowa Environmental Mesonet Daily Bulletin for 08 July 2025
News
No news is good newsIEM Code Pushes <repo,branch> on Github
| Timestamp | Repository | Message | Link |
|---|---|---|---|
| Jul 7 7:43 PM | iem,main | 🐛 Allow DCP var of length 7 | Link |
| Jul 7 1:10 PM | pywwa,main | [pre-commit.ci] pre-commit autoupdate updates: - [github.com/astral-sh/ruff-pre-commit: v0.12.1 → v0.12.2](https://github.com/astral-sh/ruff-pre-commit/compare/v0.12.1...v0.12.2) |
Link |
| Jul 7 1:10 PM | iem-web-services,main | [pre-commit.ci] pre-commit autoupdate updates: - [github.com/astral-sh/ruff-pre-commit: v0.12.0 → v0.12.2](https://github.com/astral-sh/ruff-pre-commit/compare/v0.12.0...v0.12.2) |
Link |
Daily Feature
3 PM July Temps
Date: 07 Jul 05:30 AM
Votes: Good: 10
Bad: 0 Abstain: 0
After a very hot Friday, abundant storms on Saturday and a northerly breeze on Sunday helped to knock down the temperatures a bit. The featured chart looks at yearly average 3 PM temperatures during July for Des Moines. A simple period of average is shown along with a linear trend line fit. The early value for 2025 comes in below average by a few degrees and matches the recent trend of not much variance from average. The forecast for this week has afternoon highs in the low to mid 80s, so certainly about average for the second week of July!
The featured media can be generated on-demand here
.NWS Watch/Warning Summary for 12 AM 7 Jul 2025 - 12 AM 8 Jul 2025 CDT
| Summary | By WFO | Watches | ||||||
|---|---|---|---|---|---|---|---|---|
| Type | US | IA | ARX | DVN | DMX | OAX | FSD | US |
| Tornado | 13 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
| Svr Tstorm | 164 | 11 | 0 | 0 | 3 | 19 | 17 | 4 |
| Flash Flood | 41 | 0 | 0 | 0 | 0 | 1 | 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: 174 Verified: 68 [39.1%] Polygon Size Versus County Size [18.6%] Average Perimeter Ratio [24.2%] Percentage of Warned Area Verified (15km) [18.9%] Average Storm Based Warning Size [1266 sq km] Probability of Detection(higher is better) [0.75] False Alarm Ratio (lower is better) [0.61] Critical Success Index (higher is better) [0.34]