Iowa Environmental Mesonet Daily Bulletin for 18 January 2019

News

No news is good news

IEM Code Pushes <to branch> on Github



Daily Feature

Seven Straight below Freezing
Date: 17 Jan 06:06 AM
Votes: Good: 9   Bad: 0 Abstain: 0

Temperatures above freezing may be difficult to come by for the rest of this January as the well advertised cold weather arrives for the weekend and looks to persist. We will likely see at least seven straight days with the high temperature below freezing. The frequency of having this situation is shown by the featured chart. The chance of a given day having the previous seven days below freezing is about 1 in 10. While not shown and for comparison, the frequency for a colder location like Fargo, ND is about 50%.

NWS Watch/Warning Summary for 12 AM 17 Jan 2019 - 12 AM 18 Jan 2019 CST

Summary By WFO Watches
Type USIA ARXDVNDMXOAXFSD US
Tornado 0 0 0 0 0 0 0 0
Svr Tstorm 2 0 0 0 0 0 0 0
Flash Flood 8 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: 2 Verified: 0  [0.0 %]
Reduction of Size Versus County Based     [94.9 %]
Average Perimeter Ratio                   [7.4 %]
Percentage of Warned Area Verified (15km) [0.0 %]
Average Storm Based Warning Size          [796 sq km]
Probability of Detection(higher is better)[0.00]
False Alarm Ratio (lower is better)       [1.00]
Critical Success Index (higher is better) [0.00]