IEM Daily Bulletin for Jun 29 2025

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 29 June 2025

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Jun 28 10:54 AM	iem,main	⬆️ Update precommits	Link
Jun 28 10:55 AM	iem,main	🎨 Address some javascript lint	Link
Jun 28 11:56 AM	iem,main	💚 Address some deepsource concerns	Link

Daily Feature

No feature posted

NWS Watch/Warning Summary for 12 AM 28 Jun 2025 - 12 AM 29 Jun 2025 CDT

	Summary		By WFO					Watches
Type	US	IA	ARX	DVN	DMX	OAX	FSD	US
Tornado	26	0	0	0	0	0	0	1
Svr Tstorm	166	0	0	0	0	0	8	5
Flash Flood	37	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

SVR+TOR Warnings Issued: 183 Verified:  96 [52.5%]
Polygon Size Versus County Size            [20.7%]
Average Perimeter Ratio                    [25.0%]
Percentage of Warned Area Verified (15km)  [24.1%]
Average Storm Based Warning Size           [1329 sq km]
Probability of Detection(higher is better) [0.69]
False Alarm Ratio (lower is better)        [0.48]
Critical Success Index (higher is better)  [0.43]