IEM Daily Bulletin for Feb 15 2026

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 15 February 2026

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Feb 14 6:56 AM	iem,main	📝 Sundry updates per log review	Link
Feb 14 10:13 AM	iem,main	🐛 Don't force httpd redirect	Link
Feb 14 12:17 PM	iem,main	🎨 Don't permit redirects	Link

Daily Feature

No feature posted

NWS Watch/Warning Summary for 12 AM 14 Feb 2026 - 12 AM 15 Feb 2026 CST

	Summary		By WFO					Watches
Type	US	IA	ARX	DVN	DMX	OAX	FSD	US
Tornado	38	0	0	0	0	0	0	3
Svr Tstorm	56	0	0	0	0	0	0	0
Flash Flood	1	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:  86 Verified:  30 [34.9%]
Polygon Size Versus County Size            [32.7%]
Average Perimeter Ratio                    [21.9%]
Percentage of Warned Area Verified (15km)  [13.3%]
Average Storm Based Warning Size           [2355 sq km]
Probability of Detection(higher is better) [0.88]
False Alarm Ratio (lower is better)        [0.65]
Critical Success Index (higher is better)  [0.33]