National Weather Service United States Department of Commerce

Tropical Moisture Will Bring Heavy to Excessive Rainfall with Possible Flooding This Week

Tropical moisture from the remnants of Odalys and Hurricane Polo will surge over the southwest into the central U.S. this week with several days of heavy to excessive rainfall which may bring limited to considerable flooding. Flood Watches have been issued through Wednesday in the southwest U.S. and moderate risk outlooks have been issued today through Thursday. Read More >

Overview

A weaker winter storm moved into the area and added more ice and snow to the snow pack received the other day. This system moved in from the south and brought along a strong pull of warm air aloft. This led to a lot more ice accumulation than was expected prior to the event. While the storm was supposed to lead to mostly snow for the northern half of our forecast area, those areas received mainly freezing rain and sleet through most of the afternoon. This led to widespread ice accumulations of 0.10-0.25". In the southwest part of our forecast area, more ice accumulation was noted, with many locations reporting around 0.25" or even more. Along with the accumulating ice, some downed tree limbs and power outages were a result.

Mid afternoon, the freezing rain began to switch to snow from a line around Iowa City, IA to Freeport, IL. A relatively strong band formed in this location and dropped around 4" of snow, especially in the Iowa City area. This band slowly progressed towards the east through the rest of the afternoon and evening, with another band setting up just east of the Mississippi, where reports around 3" were noted in the Moline area. Overall, these were relatively light snowfall accumulations, but when coupled with the ice that fell prior, it led to treacherous driving conditions throughout the area.

 

Official National Weather Service Observations

Moline: 3.7"

Davenport: 0.7"

Dubuque: 0.7"

***Cedar Rapids, Iowa City and Burlington do not measure snow as part of their climate records. Please see the Snowfall Amounts and Storm Reports sections for reported snow amounts in these locations.***

Image
WPC - Surface Map and Radar
nws logo Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.
nws logo