IEM Daily Bulletin for Apr 7 2026

[daryl herzmann]

Iowa Environmental Mesonet Daily Bulletin for 07 April 2026

News

No news is good news

IEM Code Pushes <repo,branch> on Github

Timestamp	Repository	Message	Link
Apr 6 11:19 AM	iem,main	⚡️ Persist COW shared border stat to db	Link
Apr 6 11:20 AM	iem,main	⬆️ Update precommits	Link
Apr 6 9:20 AM	pyiem,main	🩹 Belt-suspenders state being uppercase	Link
Apr 6 1:29 PM	pyiem,main	[pre-commit.ci] pre-commit autoupdate updates: - [github.com/astral-sh/ruff-pre-commit: v0.15.8 → v0.15.9](https://github.com/astral-sh/ruff-pre-commit/compare/v0.15.8...v0.15.9) - [github.com/tox-dev/pyproject-fmt: v2.20.0 → v2.21.0](https://github.com/tox-dev/pyproject-fmt/compare/v2.20.0...v2.21.0)	Link
Apr 6 7:09 PM	pyiem,main	🎨 Improve iemapp help doc generation	Link
Apr 6 1:29 PM	iemone,main	[pre-commit.ci] pre-commit autoupdate updates: - [github.com/pre-commit/mirrors-eslint: v10.1.0 → v10.2.0](https://github.com/pre-commit/mirrors-eslint/compare/v10.1.0...v10.2.0)	Link
Apr 6 1:28 PM	iemlsr,main	[pre-commit.ci] pre-commit autoupdate updates: - [github.com/pre-commit/mirrors-eslint: v10.0.0-rc.0 → v10.2.0](https://github.com/pre-commit/mirrors-eslint/compare/v10.0.0-rc.0...v10.2.0)	Link
Apr 6 12:13 PM	iemvtec,main	🐛 Prevent missing RADAR legend code	Link
Apr 6 1:29 PM	pywwa,main	[pre-commit.ci] pre-commit autoupdate updates: - [github.com/astral-sh/ruff-pre-commit: v0.15.7 → v0.15.9](https://github.com/astral-sh/ruff-pre-commit/compare/v0.15.7...v0.15.9) - [github.com/tox-dev/pyproject-fmt: v2.20.0 → v2.21.0](https://github.com/tox-dev/pyproject-fmt/compare/v2.20.0...v2.21.0)	Link
Apr 6 11:53 AM	iem-web-services,main	⚡️ Use db stored shared_border_pct for Cow stats	Link

Daily Feature

DAT Infographics
Date: 06 Apr 05:30 AM
Votes: Good: 15   Bad: 0 Abstain: 0

The National Weather Service Damage Assessment Toolkit (DAT) is a post-event storm survey platform that provides information from NWS damage surveys typically following tornado events. NWS Quad Cities / Davenport has completed a couple of such surveys following tornadoes during storms last week. The IEM offers a visualization of the "DAT tracks" that combines NWS Tornado Warnings along with an estimated track timing. The shown tornado tracked just southeast of Maquoketa. There are also Public Information Statements (PNS) associated with these DAT events with this PNS covering this featured tornado. The IEM also maintains a simple google email group that anybody can subscribe to receive emails when the NWS publishes such PNS damage survey results.

The featured media can be generated on-demand here

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NWS Watch/Warning Summary for 12 AM 6 Apr 2026 - 12 AM 7 Apr 2026 CDT

	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.

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): 1,343
• Mastodon / Fediverse: 10
• Slack: 32
• Twitter/X: 6,699
• HTTP Webhooks: 12
• Weather.IM Jabber Chatrooms: 8,069