Iowa Environmental Mesonet Daily Bulletin for 14 November 2018

News

No news is good news

IEM Code Pushes <to branch> on Github



Daily Feature

November Ranges
Date: 13 Nov 05:33 AM
Votes: Good: 6   Bad: 2 Abstain: 0

The featured chart displays the maximum high, minimum low, and range between those two values for each November back to 1893 for Ames. The long term average is about 60 degrees and this year's range currently stands at 50. So one wonders if we are to expand that range with the days remaining this month, will it be by having a warmer high than 58 or a colder low than 8 degrees? The current forecast is not convincing either way, but there is optimism that the later part of November will be warm.

NWS Watch/Warning Summary for 12 AM 13 Nov 2018 - 12 AM 14 Nov 2018 CST

Summary By WFO Watches
Type USIA ARXDVNDMXOAXFSD US
Tornado 4 0 0 0 0 0 0 1
Svr Tstorm 3 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: 2  [28.6 %]
Reduction of Size Versus County Based     [44.0 %]
Average Perimeter Ratio                   [12.4 %]
Percentage of Warned Area Verified (15km) [6.7 %]
Average Storm Based Warning Size          [2287 sq km]
Probability of Detection(higher is better)[1.00]
False Alarm Ratio (lower is better)       [0.71]
Critical Success Index (higher is better) [0.29]