IEM Daily Bulletin for Mar 1 2026

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 01 March 2026

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
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Daily Feature

No feature posted

NWS Watch/Warning Summary for 12 AM 28 Feb 2026 - 12 AM 1 Mar 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	8	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:   8 Verified:   2 [25.0%]
Polygon Size Versus County Size            [23.8%]
Average Perimeter Ratio                    [7.0%]
Percentage of Warned Area Verified (15km)  [15.6%]
Average Storm Based Warning Size           [937 sq km]
Probability of Detection(higher is better) [0.67]
False Alarm Ratio (lower is better)        [0.75]
Critical Success Index (higher is better)  [0.22]

IEMBot Social Media Posts

IEMBot can be configured to post messages to a number of social media services. More details: IEMBot Homepage.

Posts yesterday per supported service:

• ATMosphere (bluesky only attm): 1,322
• Mastodon / Fediverse: 3,104
• Slack: 130
• Twitter/X: 7,061
• HTTP Webhooks: 18
• Weather.IM Jabber Chatrooms: 7,648