IEM Daily Bulletin for Feb 22 2026

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 22 February 2026

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Feb 21 8:05 AM	iem,main	📝 Sundry updates per log review	Link
Feb 21 7:07 PM	iem,main	📝 Sundry code churn	Link
Feb 21 11:29 AM	iem-database,main	🎨 Apply sqlfluff	Link
Feb 21 11:45 AM	iem-database,main	✨ Update iembot webhooks storage	Link
Feb 21 12:00 PM	iem-database,main	💚 Appease precommit	Link
Feb 21 12:09 PM	iem-database,main	⬆️ Update precommits	Link
Feb 21 12:48 PM	iem-database,main	💚 Increase iembot testdata	Link
Feb 21 2:56 PM	iem-database,main	🎨 Updates whilst implementing webhook logic	Link

Daily Feature

No feature posted

NWS Watch/Warning Summary for 12 AM 21 Feb 2026 - 12 AM 22 Feb 2026 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	2	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:   1 [100.0%]
Polygon Size Versus County Size            [31.9%]
Average Perimeter Ratio                    [23.8%]
Percentage of Warned Area Verified (15km)  [28.7%]
Average Storm Based Warning Size           [936 sq km]
Probability of Detection(higher is better) [0.14]
False Alarm Ratio (lower is better)        [0.00]
Critical Success Index (higher is better)  [0.14]