IEM Daily Bulletin for Nov 7 2025

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 07 November 2025

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Nov 6 9:45 PM	iem,main	⬆️ Update precommits	Link
Nov 6 9:46 PM	iem,main	📝 Sundry updates per log review	Link

Daily Feature

Awaiting Des Moines Freeze
Date: 06 Nov 05:30 AM
Votes: Good: 11   Bad: 0 Abstain: 0

For the Des Moines Airport weather station, the coldest temperature so far this fall season is just 32°F. The featured chart looks into the climatology of season to date coldest low temperature for the site. The blue line represents the 2025 observations. The shaded regions show the distribution of the season to date values over the period of record. The black line represents a simple average. The latest into the season to have a minimum accumulated low temperature of just 32°F is shown to be about two weeks from now. Even with the strong urban heat island effect for the airport sensor, the present weekend forecast shows sub-freezing temperatures to be easily obtained. The chart nicely illustrates how the late August and early September chilly temperatures were below the 25th percentile and much different than has been experienced for the rest of the fall season.

The featured media can be generated on-demand here

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NWS Watch/Warning Summary for 12 AM 6 Nov 2025 - 12 AM 7 Nov 2025 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.