IEM Daily Bulletin for Feb 13 2026

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 13 February 2026

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Feb 12 9:23 AM	iem,main	⏪️ Revert breaking change on autoplot 109	Link
Feb 12 9:24 AM	iem,main	📝 Sundry updates per log review	Link
Feb 12 10:59 PM	pyiem,main	⬆️ Update ruff	Link
Feb 12 11:16 PM	pyiem,main	✨ Support TAF amendment designation refs akrherz/iem#1514	Link
Feb 12 11:25 PM	pyiem,main	💚 Add tests	Link
Feb 12 10:31 PM	iem-database,main	✨ Add is_amendment TAF storage	Link
Feb 12 10:53 PM	iem-database,main	🎨 Attempt sqlfluff to keep things tidy	Link

Daily Feature

Coldest Seven Days
Date: 12 Feb 05:30 AM
Votes: Good: 12   Bad: 1 Abstain: 0

With recently warmer days, noticeably longer daylight time, and absence of snow cover; one may start to wonder if the worst of winter is now behind us? One such measure may be considering the coldest seven day stretch each winter season as measured by average temperature over those seven days for Des Moines. The featured plot charts that seven day period each winter season along with a day of the season histogram for participation within that period. The frequencies certainly drop off by mid February, but they also are still non-zero with some events even occurring during March. The near term forecast has no hints of cold weather, so it seems likely that the worst of sustained winter cold is behind us, hopefully!

The featured media can be generated on-demand here

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NWS Watch/Warning Summary for 12 AM 12 Feb 2026 - 12 AM 13 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	0	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

No SVR+TOR Warnings Issued.