Iowa Environmental Mesonet Daily Bulletin for 17 October 2017

News

No news is good news

IEM Code Development on Github

Daily Feature

First Sub-32 Time Series
Date: 16 Oct 06:01 AM
Votes: Good: 10   Bad: 1 Abstain: 0

Temperatures are quite chilly this morning but failed to breach 32 degrees for places like Ames. The featured chart displays the temperature time series for the first sub-32 fall temperature each of the past years since 1996. The current time series for 2017 is shown and was comparable to previous years, but did not quite make it! Temperatures are expected to warm this week, so Ames's next chance of freezing weather is a few days away yet.

NWS Watch/Warning Summary for 12 AM 16 Oct 2017 - 12 AM 17 Oct 2017 CDT

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 13 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: 1  [33.3 %]
Reduction of Size Versus County Based     [75.8 %]
Average Perimeter Ratio                   [9.4 %]
Percentage of Warned Area Verified (15km) [22.0 %]
Average Storm Based Warning Size          [550 sq km]
Probability of Detection(higher is better)[1.00]
False Alarm Ratio (lower is better)       [0.67]
Critical Success Index (higher is better) [0.33]