IEM Daily Bulletin for Jan 11 2025

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daryl herzmann

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Jan 11, 2025, 7:12:07 AM1/11/25
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Iowa Environmental Mesonet Daily Bulletin for 11 January 2025

News

No news is good news

IEM Code Pushes <to branch> on Github



Daily Feature

GeoTIFF Export
Date: 10 Jan 05:30 AM
Votes: Good: 11   Bad: 0 Abstain: 0

The IEM Autoplot tool has two general goals. The first is to generate visualizations of often complex datasets on-the-fly with considerable freedom given to the user to customize the presentation. The second is to give the user the option to download the raw data behind the visualization to allow for usage within their visualization or statistical software package of choice. To further support the extensibility goal, a number of autoplots that generate maps of grid based data are now able to export that data as a GeoTIFF. A GeoTIFF is a common and open GIS format for raster data. Note that the export is the raw data as a single band of floating point data values, not the visualization with color ramp and associated cartography. So today's featured plot is a mundane heatmap of NWS Severe Thunderstorm Warning polygons over Iowa for 2024. You can export the raster of event counts as a GeoTIFF and do further analysis to your heart's content. The option to generate these GeoTIFFs will be found as a button link below the generated maps within the autoplot tooling. As always, feedback on the autoplots and functionality is appreciated!

The featured media can be generated on-demand here

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NWS Watch/Warning Summary for 12 AM 10 Jan 2025 - 12 AM 11 Jan 2025 CST

Summary By WFO Watches
Type USIA ARXDVNDMXOAXFSD US
Tornado 0 0 0 0 0 0 0 0
Svr Tstorm 3 0 0 0 0 0 0 0
Flash Flood 1 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:   3 Verified:   2 [66.7%]
Polygon Size Versus County Size            [98.2%]
Average Perimeter Ratio                    [100.0%]
Percentage of Warned Area Verified (15km)  [33.5%]
Average Storm Based Warning Size           [1859 sq km]
Probability of Detection(higher is better) [0.94]
False Alarm Ratio (lower is better)        [0.33]
Critical Success Index (higher is better)  [0.64]

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