IEM Daily Bulletin for Nov 23 2025

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 23 November 2025

News

No news is good news

IEM Code Pushes <repo,branch> on Github

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Daily Feature

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NWS Watch/Warning Summary for 12 AM 22 Nov 2025 - 12 AM 23 Nov 2025 CST

	Summary		By WFO					Watches
Type	US	IA	ARX	DVN	DMX	OAX	FSD	US
Tornado	0	0	0	0	0	0	0	0
Svr Tstorm	1	0	0	0	0	0	0	0
Flash Flood	0	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:   1 Verified:   0 [0.0%]
Polygon Size Versus County Size            [6.0%]
Average Perimeter Ratio                    [7.3%]
Percentage of Warned Area Verified (15km)  [0.0%]
Average Storm Based Warning Size           [973 sq km]
Probability of Detection(higher is better) [0.00]
False Alarm Ratio (lower is better)        [1.00]
Critical Success Index (higher is better)  [0.00]