Iowa Environmental Mesonet Daily Bulletin for 05 November 2026

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp Repository Message Link
Nov 4 12:55 PM iem,main 📝 Address issues found with log review Link
Nov 4 1:14 PM iem,main 💚 Address CI failure Link
Nov 4 2:10 PM iem,main ⚡️ Remove CI step upstreamed to iem-database repo Link
Nov 5 5:58 AM iem,main 🐛 Fix timestamp regression in autoplot params Link
Nov 4 9:49 AM pyiem,main 🎨 Account for MOS products without header version Link
Nov 4 9:58 AM pyiem,main 💚 Address codereview on RE forgiveness Link
Nov 4 1:53 PM iem-database,main 🎨 Update CI environ and attempt station sync Link
Nov 4 2:01 PM iem-database,main 💚 Address CI failure and codereview Link
Nov 4 2:04 PM iem-database,main 🎨 Modernize python Link


Daily Feature

November Dew Point Record
Date: 04 Nov 05:30 AM
Votes: Good: 16   Bad: 0 Abstain: 0

Muggy for November air was again present over the eastern half of Iowa on Tuesday with dew point readings into the lower 60s! The featured chart presents hourly dew point maximum values over the period of record for Cedar Rapids. Plenty of hours with new maximum or tied maximum values are indicated occurring on Tuesday. The overall maximum value of 64°F tied a value from 1 Nov 2000. This is all based on available hourly reports and there is not a daily high and low value reported like for air temperature. The humid air will finally depart the state on Wednesday with temperatures much closer to average than what our recent weather has been.

The featured media can be generated on-demand here

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NWS Watch/Warning Summary for 12 AM 4 Nov 2026 - 12 AM 5 Nov 2026 CST

Summary By WFO Watches
Type USIA ARXDVNDMXOAXFSD US
Tornado 1 0 0 0 0 0 0 0
Svr Tstorm 0 0 0 0 0 0 0 0
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:   1 Verified:   0 [0.0%]
Polygon Size Versus County Size            [6.7%]
Average Perimeter Ratio                    [50.3%]
Percentage of Warned Area Verified (15km)  [0.0%]
Average Storm Based Warning Size           [108 sq km]
Probability of Detection(higher is better) [0.00]
False Alarm Ratio (lower is better)        [1.00]
Critical Success Index (higher is better)  [0.00]

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