Iowa Environmental Mesonet Daily Bulletin for 26 April 2018

News

No news is good news

IEM Code Pushes <to branch> on Github



Daily Feature

April 4 PM Temps
Date: 25 Apr 05:34 AM
Votes: Good: 6   Bad: 2 Abstain: 0

Temperatures warmed again nicely on Tuesday making for a three day stretch of excellent weather for most of Iowa. The Des Moines Airport reported 75 degrees at 4 PM. The featured chart presents April average 4 PM temperatures for the site by year along with the long term average and simple linear regression. The plot indicates a warming trend over the years and certainly most of the recent years have been above long term average. This year is a noted exception, but there is still a few days left to pull that average up and the forecast would indicate warmer temperatures through the end of the month.

NWS Watch/Warning Summary for 12 AM 25 Apr 2018 - 12 AM 26 Apr 2018 CDT

Summary By WFO Watches
Type USIA ARXDVNDMXOAXFSD US
Tornado 0 0 0 0 0 0 0 0
Svr Tstorm 7 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: 7 Verified: 1  [14.3 %]
Reduction of Size Versus County Based     [85.4 %]
Average Perimeter Ratio                   [19.3 %]
Percentage of Warned Area Verified (15km) [7.0 %]
Average Storm Based Warning Size          [1327 sq km]
Probability of Detection(higher is better)[0.50]
False Alarm Ratio (lower is better)       [0.86]
Critical Success Index (higher is better) [0.13]