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Heavy Rainfall in South Texas and Hawaii; Below Average Temperatures for Much of the East

Heavy rainfall is expected in extreme southern Texas and parts of the Hawaiian Islands into Monday. Flash-flood watches are effect for both areas. Temperatures from the Great Lakes to the southern Plains and through much of the eastern U.S. are expected to be below to well below average. Air stagnation concerns are likely across interior portions of the Northwest through Monday. Read More >

Winter Storm of January 22-23, 2018

 

A classic "Colorado Low" snowstorm impacted the Upper Mississippi River Valley and upper Great Lakes from Monday, January 22nd through Tuesday,  January 23rd. The snow was exceptionally heavy and wet, with snow to water ratios averaging 7:1. The snow also mixed with freezing drizzle at times across the southeast half of Upper Michigan as well as the Keweenaw Peninsula. Due to the very dense nature of the snow, conditions were very slippery and travel was hazardous through the 22nd into the 23rd.

 

Here's a look at storm summaries from neighboring offices (opens new tabs):

 

NWS Green Bay

NWS La Crosse

NWS Milwaukee

National Weather Service Weather Prediction Center

 

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Regional radar reflectivity and lightning (black and white symbols) from to 7 AM 1/22 to 8:00 AM 1/23 (all EST). 

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