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Overview

A strong low pressure system moved across the Midwest December 13th and 14th, bringing unseasonably warm and wet conditions. Widespread rainfall was common with amounts generally between 1.20" and 3.30" across eastern Iowa, northwest Illinois, and northeast Missouri. Dubuque, IA saw its rainiest day in the month of December receiving 2.08" on the 13th. The highest rainfall amounts fell north of an Ottumwa, IA to Dubuque, IA line.  Minor to major river flooding resulted from the unseasonably high rainfall totals.  Record warmth was also prevalent for mid December, with most of the area seeing readings in the lower 60s on Sunday, December 13th. Many temperature and precipitation records were broken with this strong system. Image Image

Flooding:

Minor to major flooding was observed on several rivers across the area.  Below are some hydrographs of locations that experienced flooding.
 

Hydrographs

  MAJOR FLOODING      
Hydrograph Hydrograph Hydrograph  
Kalona, IA Sigourney, IA De Witt, IA  
       
  MODERATE FLOODING      
Hydrograph Hydrograph Hydrograph Hydrograph
Marengo, IA Anamosa, IA St. Francisville, MO Wapello, IA
       
  MINOR FLOODING      
Hydrograph Hydrograph Hydrograph Hydrograph
Colmar Keosauqua Indepedence, IA Lone Tree, IA
       
Hydrograph Hydrograph Hydrograph Hydrograph
Columbus Jct Joslin Moline Conesville, IA
       
Hydrograph      
Oakville, IA      

 

New Records:
  • Moline, IL
    • Record Highs Dec 13th (59 deg) + 14th (62 deg)
    • Daily Precip Dec 13th (1.23")
    • Record Warm Low Dec 13th (59 deg)
    • Record December Warm Low (59 deg)
       
  • Dubuque, IA
    • Record Highs Dec 13th (61 deg) + 14th (61 deg)
    • Daily Precip Dec 13th (2.08")
    • Record Warm Low Dec 13th (47 deg)
    • Record December Daily Precipitation (2.08")
       
  • Cedar Rapids, IA
    • Record Highs Dec 13th (62 deg) + Dec 14th (59 deg)
Hydrograph

 

 

Radar:

Click on image for the Iowa Environmental Mesonet Radar Loop.
Image
 

 

Additional Information:


Summaries from other NWS Offices

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