Summary of December 13-14 Heavy Rainfall, Flooding, & New Records

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.

Flooding
New Records
Radar
Storm Reports
Additional

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

Kalona, IA	Sigourney, IA	De Witt, IA

MODERATE FLOODING

Marengo, IA	Anamosa, IA	St. Francisville, MO	Wapello, IA

MINOR FLOODING

Colmar	Keosauqua	Indepedence, IA	Lone Tree, IA


Columbus Jct	Joslin	Moline	Conesville, IA


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)

Radar:

Click on image for the Iowa Environmental Mesonet Radar Loop.

Storm Reports:

NWS Official Observations: (Sunday AM 24 HR Amounts / Monday AM 24 HR Amounts)
Local Storm Report Summary (919 AM)
CoCoRaHS Report Summary

Additional Information:

Summaries from other NWS Offices

La Crosse, WI

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