IEM Daily Bulletin for Jun 30 2025

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 30 June 2025

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Jun 29 1:03 PM	iem,main	✨ Add WPC ERO/MPD Search by Point Services https://mesonet.agron.iastate.edu/api/	Link
Jun 29 1:04 PM	iem,main	✨ Add WPC ERO/MPD Search Frontend https://mesonet.agron.iastate.edu/nws/wpc_outlook_search/	Link
Jun 29 9:30 PM	iem,main	🎨 Modernize more javascript and bootstrap5 usage	Link

Daily Feature

No feature posted

NWS Watch/Warning Summary for 12 AM 29 Jun 2025 - 12 AM 30 Jun 2025 CDT

	Summary		By WFO					Watches
Type	US	IA	ARX	DVN	DMX	OAX	FSD	US
Tornado	3	0	0	0	0	0	0	0
Svr Tstorm	172	7	2	0	1	8	12	4
Flash Flood	26	1	1	0	1	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: 171 Verified:  67 [39.2%]
Polygon Size Versus County Size            [20.5%]
Average Perimeter Ratio                    [24.1%]
Percentage of Warned Area Verified (15km)  [18.7%]
Average Storm Based Warning Size           [1699 sq km]
Probability of Detection(higher is better) [0.77]
False Alarm Ratio (lower is better)        [0.61]
Critical Success Index (higher is better)  [0.35]