Iowa Environmental Mesonet Daily Bulletin for 01 March 2026

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NWS Watch/Warning Summary for 12 AM 28 Feb 2026 - 12 AM 1 Mar 2026 CST

Summary By WFO Watches
Type USIA ARXDVNDMXOAXFSD US
Tornado 0 0 0 0 0 0 0 0
Svr Tstorm 8 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

SVR+TOR Warnings Issued:   8 Verified:   2 [25.0%]
Polygon Size Versus County Size            [23.8%]
Average Perimeter Ratio                    [7.0%]
Percentage of Warned Area Verified (15km)  [15.6%]
Average Storm Based Warning Size           [937 sq km]
Probability of Detection(higher is better) [0.67]
False Alarm Ratio (lower is better)        [0.75]
Critical Success Index (higher is better)  [0.22]

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