Muted August Range
Date: 17 Aug 05:29 AM
Votes: Good: 8 Bad: 1 Abstain: 0
The featured chart displays the range between the warmest high and coldest low for each August on record for Des Moines. The top panel displays the range between the two temperatures and the bottom panel shows the magnitude. The bar lines are the averages. It is kind of interesting to see that the recent year's August have almost all had below average range in temperature. Rewording, the range between the warmest high and coldest low is becoming less. One theory for this could be elevated humidity levels acting to keep overnight lows warmer and daytime highs cooler. The current forecast looks to continue the muted range with nothing too hot nor cold.
ARX = LaCrosse, WI DVN = Davenport, IA DMX = Des Moines, IA OAX = Omaha, NE FSD = Sioux Falls, SD
SVR+TOR Warnings Issued: 51 Verified: 13 [25.5 %] Reduction of Size Versus County Based [75.9 %] Average Perimeter Ratio [27.8 %] Percentage of Warned Area Verified (15km) [11.8 %] Average Storm Based Warning Size [1205 sq km] Probability of Detection(higher is better)[0.44] False Alarm Ratio (lower is better) [0.75] Critical Success Index (higher is better) [0.19]