IEM Daily Bulletin for Mar 10 2026

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 10 March 2026

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Mar 9 7:55 AM	iem,main	🐛 Add Fire Wx D4-8 lookup	Link
Mar 9 7:56 AM	iem,main	⬆️ Update eslint precommit	Link
Mar 9 8:14 AM	iem,main	🎨 Eat dogfood for Iowa vsby plot	Link
Mar 9 8:18 AM	iem,main	🎨 Cleanup webalizer workflow	Link
Mar 9 10:13 AM	iem,main	📝 Better document and validate cat	Link
Mar 9 2:13 PM	pywwa,main	⬆️ Update precommits	Link
Mar 9 2:27 PM	pywwa,main	🎨 Sundry QoL stuff	Link
Mar 9 9:53 AM	iem-web-services,main	🎨 Add some validation on network	Link
Mar 9 11:47 AM	iem-web-services,main	📝 Add additional taf metadata fields	Link

Daily Feature

No feature posted

NWS Watch/Warning Summary for 12 AM 9 Mar 2026 - 12 AM 10 Mar 2026 CDT

	Summary		By WFO					Watches
Type	US	IA	ARX	DVN	DMX	OAX	FSD	US
Tornado	5	0	0	0	0	0	0	0
Svr Tstorm	55	0	0	0	0	0	0	3
Flash Flood	3	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:  60 Verified:  19 [31.7%]
Polygon Size Versus County Size            [27.1%]
Average Perimeter Ratio                    [30.1%]
Percentage of Warned Area Verified (15km)  [13.9%]
Average Storm Based Warning Size           [1616 sq km]
Probability of Detection(higher is better) [0.83]
False Alarm Ratio (lower is better)        [0.68]
Critical Success Index (higher is better)  [0.30]

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): 1,713
• Mastodon / Fediverse: 16
• Slack: 1,154
• Twitter/X: 14,182
• HTTP Webhooks: 199
• Weather.IM Jabber Chatrooms: 11,465